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uses of synthesis and coagulation performance of composite poly in south africa

  • Preparation and characterisation of new

    2012-10-1 · Highlights Synthesis of a novel polyaluminum chloride-chitosan composite coagulant was achieved. Chitosan in composite coagulant was shown to improve the coagulation performance. There is an intermolecular interaction between Al and chitosan in the composite coagulant.

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  • Preparation of polyaluminum zirconium silicate

    2021-6-1 · In summary, the PAZS composite flocculant prepared by a simple co-polymerization method was used for the treatment of kaolin-HA synthetic water and actual wastewater. The combined results of these experiments and observations demonstrate that PAZS is a promising coagulant for efficient water treatment.

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  • A new inorganic–organic composite coagulant,

    2009-8-1 · Currently, research is focused on the synthesis of new composite coagulants, which are constituted of both inorganic and organic materials. In this paper, the development of relevant reagents was investigated, by combining the inorganic pre-polymerised iron-based coagulant Polyferric Sulphate (PFS) with an organic, non-ionic polymer (Polyacrylamide, PAA) under different PAA/Fe (mg/l) and …

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  • Synthesis and characterization of PSF/PES composite ...

    2019-12-1 · This technique has shown improvement in the quality of the membrane by enhancing the mechanical strength as well as the performance of the membrane. In this study, blended polysulfone (PSF) and polyethersulfone (PES) membranes were synthesized at different PSF:PES ratios (100%:0%, 0%:100%, 50%:50%, 80%:20%, 20%:80% and 25%:75%) using N-Methyl-2-pyrrolidone (NMP) as a …

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  • Synthesis, spinning, and fiber mechanical properties of ...

    2019-5-25 · Synthesis, structure and properties of carbon nanotube/poly(p-phenylene benzobisoxazole) composite fibres. Polymer International 2006 , 55 (4) , 456-465. DOI: 10.1002/pi.1998.

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  • Effects of Coagulation Bath Temperature on the

    2010-4-23 · Effects of coagulation bath temperature on structure and performance of poly (vinyl butyral) hollow fiber membranes via thermally induced phase separation. Journal of Central South University 2014, 21 (8) , 3057-3062. https://doi.org/10.1007/s11771-014-2276-x; Xiaoyu Hu, …

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  • In-Situ Synthesis and High-Efficiency Photocatalytic ...

    2020-1-14 · Two-dimensional (2D) materials ultrathin quantum sheets have the advantage of elevating the catalysis performance and prominent edge effects, but most of them belong to element single valence materials. In this paper, the ultrathin Cu(I)/Cu(II) inorganic coordination polymer quantum sheet (ICPQS) {[CuII(H2O)4][CuI4(CN)6]}n is synthesized by controlling the appropriate molar ratio of raw ...

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  • Short- and Long-Term Performance of the Thin-Film ...

    2019-5-25 · Overall, the newly developed FO membranes can recover ∼80% of the water at a high average water flux of 10.4 LMH using 1 M NaCl as draw solution from a 500 ppm oil–water emulsion containing a low salt concentration of 0.5 g/L. This, in turn, demonstrates the potential of the FO membranes for oily wastewater reclamation.

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  • Enhancing the electrochemical performance of lithium

    2019-2-14 · In LIB, according to Han et al. , the chemical bonds between the graphene nanofiller and the PVDF in a graphene-PVDF conductive composite binder enhanced the electrochemical performance of a Li 4 Ti 5 O 12 electrode by providing the electrode with a more effective electron pathway, and as a result, lowering the charge-transfer resistance and supporting cycle performance. This advantage …

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  • Application of coagulation/flocculation in oily

    2021-4-15 · Removing oil from wastewater through coagulation is a physical and chemical method, including aggregation and flocculation two processes (Wen et al., 2018).The oil removal process is shown in Fig. 2.First of all, the coagulants can neutralize negative charges of oil particles and reduce the electrostatic repulsion of the electric double-layer.

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  • Synthesis and characterization of PSF/PES composite ...

    2019-12-1 · Synthesis and characterization of PSF/PES composite membranes for use in oily wastewater treatment. M.S Rameetse 1, O.A Aberefa 1 and M.O Daramola 1. Published 1 December 2019 • Published under licence by IOP Publishing Ltd Journal of …

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  • Defluoridation of synthetic and natural waters by ...

    2017-6-14 · Removal of fluoride from drinking water by polyaluminum chloride-chitosan (PACl-Ch) composite coagulant was studied in a batch system. Two types of PACl-Ch coagulant were synthetized as PACl-Ch I and PACl-Ch II with chitosan to aluminum (Ch:Al) weight ratios of 0.5 and 1.0, respectively, and were used for defluoridation under different operating conditions.

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  • The role of nanoadsorbents and nanocomposite

    Significant attention has been given to nanotechnology as an emerging approach in water/wastewater treatment for heavy metals removal. Numerous research works on synthesizing, fabrication and upgrading nanoparticles have reported as an efficient adsorbent in removal of wide range of heavy metals from wastewater. This review intends to provide researchers with understanding and knowledge ...

    Get Price
  • Synthesis, characterization, and antimicrobial

    Synthesis, characterization, and antimicrobial properties of novel double layer nanocomposite electrospun fibers for wound dressing applications Alaa J Hassiba,1 Mohamed E El Zowalaty,2 Thomas J Webster,3–5 Aboubakr M Abdullah,6 Gheyath K Nasrallah,7 Khalil Abdelrazek Khalil,8 Adriaan S Luyt,6 Ahmed A Elzatahry1 1Materials Science and Technology Program, College of Arts and Sciences, …

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  • Applications of Polymers in the Biomedical Field

    2019-11-7 · How to cite this article: Ibrahim I, Sadiku E, Jamiru T, Hamam A, Kupolati W. Applications of Polymers in the Biomedical Field. Curr Trends Biomedical Eng & Biosci. 2017; 4(5): 555650. DOI: 10.19080/CTBEB.2017.04.555650 00103 Current rends in Biomedical ngineering Biosciences

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  • Application of Organic Coagulants in Water and

    2017-7-13 · Poly(Vinylidene Fluoride-co-Hexafluoropropylene) Composite Membrane Lutendo E. Macevele 1, Kgabo L. M. Moganedi 2 and Takalani Magadzu 1,* 1 Department of Chemistry, University of Limpopo, Private Bag x1106, Sovenga 0727, South Africa; [email protected]

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  • Investigation of Antibacterial and Fouling Resistance of ...

    2021-3-24 · The integration of metal–organic frameworks (MOFs) with polymer fibres enables the formation of fibrous composite materials with advantages …

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  • Fibre-based composites from the integration of metal ...

    Nanostructures refer to materials or structures that have at least one dimension between 1 and 100 nm. The various sub-fields of nanotechnology focus on the creation, characterization, and application of nanostructures. In this chapter, we discuss the fabrication and application of nanostructures commonly studied and used in nanotechnology.

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  • Nanostructures - an overview | ScienceDirect Topics

    Better performance in cold water. And because PAC does function so differently, there are many applications where it will provide finished water quality that the traditional coagulants can't achieve. GEO understands the relationships between basicity, alumina content and the way a PAC will perform.

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  • Defluoridation of synthetic and natural waters by ...

    2017-6-14 · Removal of fluoride from drinking water by polyaluminum chloride-chitosan (PACl-Ch) composite coagulant was studied in a batch system. Two types of PACl-Ch coagulant were synthetized as PACl-Ch I and PACl-Ch II with chitosan to aluminum (Ch:Al) weight ratios of 0.5 and 1.0, respectively, and were used for defluoridation under different operating conditions.

    Get Price
  • 3. Manufacturing: Materials and Processing |

    Typical applications of high-performance fibers are composite reinforcement, ropes and cables, and antiballistic clothing. As a group, these fibers represent successful technical developments, but they have proved less commercially attractive than once believed for a variety of reasons. The spinning process can be described as follows.

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  • Synthesis, characterization, and performance

    Synthesis, characterization, and performance evaluation of multilayered photoanodes by introducing mesoporous carbon and TiO2 for humic acid adsorption Soraya Hosseini,1 Hossein Jahangirian,2 Thomas J Webster,2 Salman Masoudi Soltani,3 Mohamed Kheireddine Aroua1 1Department of Chemical Engineering, University of Malaya, Kuala Lumpur, Malaysia; 2Department of Chemical Engineering, …

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  • Coagulation and Flocculation in Water and

    2018-1-24 · Figure 4 shows the result of chemical stability of nano-composite membrane and the effect of ethanol and sodium hypochlorite concentrations on the nano-composite performance. It is clear that the NOM rejections were sustained at more than 80% after eight days and the water fluxes had increased from 37.6 to 72.5 L/m 2 ·h and 37.6 to 61.2 L/m 2 ...

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  • Optimization of the synthesis and operational

    2020-2-26 · Synthesis, characterization, and degradation test. According to reported methods [34,35,36,37], the synthesis of serial samples via direct melt polycondensation and their structure and performance ...

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  • Application of Organic Coagulants in Water and

    2021-3-24 · The integration of metal–organic frameworks (MOFs) with polymer fibres enables the formation of fibrous composite materials with advantages …

    Get Price
  • Efficient synthesis, characterization, and application

    2013-6-5 · Coagulation and Flocculation Process Fundamentals 1 Coagulation and Flocculation . Groundwater and surface water contain both dissolved and suspended particles. Coagulation and flocculation are used to separate the suspended solids portion from the water. Suspended particles vary in source, charge, particle size, shape, and density. Correct ...

    Get Price
  • Fibre-based composites from the integration of

    2006-8-29 · Synthesis and evaluation of injectable, in situ crosslinkable synthetic extracellular matrices for tissue engineering Xiao Zheng Shu Center for Therapeutic Biomaterials and Department of Medicinal Chemistry, The University of Utah, 419 Wakara Way, Suite 205, Salt Lake City, Utah 84108‐1257

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  • Defluoridation of synthetic and natural waters by ...

    2017-6-14 · Removal of fluoride from drinking water by polyaluminum chloride-chitosan (PACl-Ch) composite coagulant was studied in a batch system. Two types of PACl-Ch coagulant were synthetized as PACl-Ch I and PACl-Ch II with chitosan to aluminum (Ch:Al) weight ratios of 0.5 and 1.0, respectively, and were used for defluoridation under different operating conditions.

    Get Price
  • Synthesis and characterization of PSF/PES

    2019-12-1 · Synthesis and characterization of PSF/PES composite membranes for use in oily wastewater treatment. M.S Rameetse 1, O.A Aberefa 1 and M.O Daramola 1. Published 1 December 2019 • Published under licence by IOP Publishing Ltd Journal of …

    Get Price
  • Synthesis and characterization of polyvinylidene fluoride ...

    2020-6-18 · Synthesis and characterization of polyvinylidene fluoride/magnesium bromide polymer electrolyte for magnesium battery application Medhat Mesallam1, Eman M Kamar2, Neeraj Sharma3 and E Sheha1,∗ 1Physics Department, Faculty of Science, Benha University, Benha, Egypt 2Chemistry Department, Faculty of Science, Benha University, Benha, Egypt 3School of Chemistry, The University of New South ...

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  • Synthesis and mechanical analysis of conductive ...

    2021-6-3 · Conductive polyurethane foam (PUF) was fabricated for use as biomedical pads. A poly(3,4-ethylenedioxythiophene):polystyrene sulphonate (PEDOT:PSS) mixture was added to increase the conductivity and density, and green mussel shell particles were used to improve the strain energy absorption. Graphene and nanotube particles were added to determine the impact of each on the …

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  • Applications of Polymers in the Biomedical Field

    2019-11-7 · How to cite this article: Ibrahim I, Sadiku E, Jamiru T, Hamam A, Kupolati W. Applications of Polymers in the Biomedical Field. Curr Trends Biomedical Eng & Biosci. 2017; 4(5): 555650. DOI: 10.19080/CTBEB.2017.04.555650 00103 Current rends in Biomedical ngineering Biosciences

    Get Price
  • Optimization of the synthesis and operational

    2018-1-24 · Figure 4 shows the result of chemical stability of nano-composite membrane and the effect of ethanol and sodium hypochlorite concentrations on the nano-composite performance. It is clear that the NOM rejections were sustained at more than 80% after eight days and the water fluxes had increased from 37.6 to 72.5 L/m 2 ·h and 37.6 to 61.2 L/m 2 ...

    Get Price
  • The role of nanoadsorbents and nanocomposite

    Significant attention has been given to nanotechnology as an emerging approach in water/wastewater treatment for heavy metals removal. Numerous research works on synthesizing, fabrication and upgrading nanoparticles have reported as an efficient adsorbent in removal of wide range of heavy metals from wastewater. This review intends to provide researchers with understanding and knowledge ...

    Get Price
  • Fibre-based composites from the integration of

    2021-3-24 · The integration of metal–organic frameworks (MOFs) with polymer fibres enables the formation of fibrous composite materials with advantages …

    Get Price
  • Formulation and characterisation of alginate ...

    2021-6-7 · Formulation of gallic acid composite film dressings. Five (5) different combinations of polymers were used in the pre-formulation of blank hydrocolloid film which include: sodium alginate (SA), pectin (PC), sodium carboxymethylcellulose (NaCMC), chitosan (CS) and Pluronic F-127 (PF127) presented in Table 1.The blank hydrocolloid films were solvent-casted by filling the uniform gel slurry (20g ...

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  • Physico‐chemical processes - Yu - 2020 - Water

    The biochar composite catalyst was prepared from the recycled coagulation sludge for catalytic degradation of tylosin and rhodamine B (RhB). Liu, Lou, et al. ( 2019 ) developed an enhanced coagulation strategy to compare PFS (poly-ferric sulfate)/FeSO 4 and aerated PFS/FeSO 4 for the elimination of antimony Sb(V) from simulated textile wastewater.

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  • RUBBER PROCESSING TECHNOLOGY

    2020-2-3 · involves coagulation - adding an acid such as formic acid (HCOOH); coagulation takes about 12 hours •The coagulum, now soft solid slabs, is then squeezed through a series of rolls which drive out most of the water and reduce thickness to about 3 mm (1/8 in) •The sheets are then draped over wooden frames and dried in smokehouses

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  • Polyglycerol Hyperbranched Polyesters: Synthesis ...

    2019-12-9 · 8.1. Synthesis . Poly(lactic acid) is a biodegradable and bioactive thermoplastic aliphatic polyester derived from renewable resources, such as corn starch, cassava roots, chips or starch, or sugarcane. It is one of the most important bio-based polyester and in 2010 it was the bioplastic with the second highest volume consumption in the world.

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  • Synthesis, characterization, and performance

    Synthesis, characterization, and performance evaluation of multilayered photoanodes by introducing mesoporous carbon and TiO2 for humic acid adsorption Soraya Hosseini,1 Hossein Jahangirian,2 Thomas J Webster,2 Salman Masoudi Soltani,3 Mohamed Kheireddine Aroua1 1Department of Chemical Engineering, University of Malaya, Kuala Lumpur, Malaysia; 2Department of Chemical Engineering, …

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  • Nacre-inspired composites with different macroscopic ...

    2018-4-2 · In this review, we overview the recent achievements in synthesis of high performance nacre-inspired macroscopic composites and divide them into different groups by standards of different ...

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  • COAGULATION AND FLOCCULATION - MRWA

    2013-6-5 · Coagulation and Flocculation Process Fundamentals 1 Coagulation and Flocculation . Groundwater and surface water contain both dissolved and suspended particles. Coagulation and flocculation are used to separate the suspended solids portion from the water. Suspended particles vary in source, charge, particle size, shape, and density. Correct ...

    Get Price
  • Design and Synthesis of a Superhydrophobic PVDF

    2015-10-15 · Contributed by the Tribology Division of ASME for publication in the J OURNAL OF T RIBOLOGY.Manuscript received April 18, 2015; final manuscript received July 23, 2015; published online October 15, 2015.

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  • Synthesis and evaluation of injectable, in situ ...

    2006-8-29 · Synthesis and evaluation of injectable, in situ crosslinkable synthetic extracellular matrices for tissue engineering Xiao Zheng Shu Center for Therapeutic Biomaterials and Department of Medicinal Chemistry, The University of Utah, 419 Wakara Way, Suite 205, Salt Lake City, Utah 84108‐1257

    Get Price
  • Fabrication of ultrafiltration membranes by poly (aryl ...

    2020-11-5 · Membrane technology has been considered as an attractive separation technique due to the advantage of efficient operation and low energy consumption (Weatherley 1994).Ultrafiltration membranes with a pore size between 2 and 100 nm have a broad application in pharmaceutical, chemical, food industry, biological macromolecules processing, wastewater treatment and so on (Yi et …

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  • Composite Hydrogel of Poly(acrylamide) and Starch as ...

    2020-11-16 · Ana V. Torres-Figueroa, Cinthia J. Pérez-Martínez, Teresa del Castillo-Castro, Enrique Bolado-Martínez, María A. G. Corella-Madueño, Alejandro M. García-Alegría, Tania E. Lara-Ceniceros, Lorena Armenta-Villegas, ' Composite Hydrogel of Poly(acrylamide) and Starch as Potential System for Controlled Release of Amoxicillin and Inhibition of Bacterial Growth ', Journal of Chemistry,. vol ...

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  • Physico‐chemical processes - Yu - 2020 - Water

    The biochar composite catalyst was prepared from the recycled coagulation sludge for catalytic degradation of tylosin and rhodamine B (RhB). Liu, Lou, et al. ( 2019 ) developed an enhanced coagulation strategy to compare PFS (poly-ferric sulfate)/FeSO 4 and aerated PFS/FeSO 4 for the elimination of antimony Sb(V) from simulated textile wastewater.

    Get Price
  • 'Design, Synthesis, Processing, and Thermal

    Polymer composites containing nanosized fillers have generated explosive interest since the early 1980's. Many recent studies have been conducted incorporating nano-fillers into polymer matrices to design and synthesize materials with tunable mechanical, thermal, and optical properties. Conventional filled polymers, where the reinforcement is on the order of microns, have been replaced by ...

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  • Synthesis and characterisation of novel Cu(ii)

    This study focused on the synthesis, photocatalytic degradation of organic dyes and biological activity of novel N, N, O-donor tridentate water soluble 4-hydroxy benzohydrazide-grafted biopolymer Schiff base Cu(ii) complexes. The eco-friendly catalysts were designed for potential application in the degradation of o

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  • Synthesis, characterization, and antimicrobial

    Synthesis, characterization, and antimicrobial properties of novel double layer nanocomposite electrospun fibers for wound dressing applications Alaa J Hassiba,1 Mohamed E El Zowalaty,2 Thomas J Webster,3–5 Aboubakr M Abdullah,6 Gheyath K Nasrallah,7 Khalil Abdelrazek Khalil,8 Adriaan S Luyt,6 Ahmed A Elzatahry1 1Materials Science and Technology Program, College of Arts and Sciences, …

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  • Journal of Science: Advanced Materials and Devices

    2017-1-29 · Review Article Highly sensitive and selective chemiresistor gas/vapor sensors based on polyaniline nanocomposite: A comprehensive review Sadanand Pandey a, b, * a Department of Applied Chemistry, University of Johannesburg, P.O. Box 17011, Doornfontien 2028, Johannesburg, South Africa b Centre for Nanomaterials Science Research, University of Johannesburg, South Africa

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  • Effect of Porous Carbon Morphologies and

    2021-1-19 · The initial discharge capacities of the composite prepared by the physical mixing and liquefied pore-filling with 1-μm-sized carbon were 1060 mAh/g and 1121 mAh/g, respectively. On the other hand, the capacities of the composite using 5-μm-sized carbon were 705 mAh/g in physical mixing and 845 mAh/g in the liquefied pore-filling process.

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  • Application of Organic Coagulants in Water and

    Titania- and silica-polymer hybrid materials were prepared with an in situ sol-gel process for refractive index-matched, optical thin-film applications. A random copolymer of methyl methacrylate (MMA) and 3-(trimethoxysilyl) propyl methacrylate (MSMA) (poly(MMA-co-MSMA), MMA:MSMA = 78:22 molar ratio) capped with trialkoxysilane in MSMA units was used as a precursor.

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  • OSA | Synthesis of titania- and silica-polymer hybrid ...

    2016-7-25 · The nanomaterials have been widely used in various fields, such as photonics, catalysis, and adsorption, because of their unique physical and chemical properties. Therefore, their production methods are of utmost importance. Compared with traditional synthetic methods, the template method can effectively control the morphology, particle size, and structure during the preparation of ...

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  • Review of Research on Template Methods in

    2000-8-8 · CYCLOPOLYMERIZATION: ITS DISCOVERY AND EARLY DEVELOPMENT. Two separate experimental programs begun at the University of Florida during the 1946–1951 period that gave unpredictable results eventually led to the discovery of cyclopolymerization. 1 Fortunately, some unusual results were obtained in both cases, which prompted us to continue the programs rather than …

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  • Frontiers | A Perspective on Polylactic Acid-Based ...

    2021-7-6 · Title:Facile Synthesis of Cu2O nanoparticle-loaded Carbon Nanotubes Composite Catalysts for Reduction of 4-Nitrophenol VOLUME: 16 ISSUE: 4 Author(s):Yao Feng, Ran Wang, Juanjuan Yin, Fangke Zhan, Kaiyue Chen, Tifeng Jiao*, Jingxin Zhou, Lexin Zhang and Qiuming Peng Affiliation:Hebei Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Heavy Metal Deep-Remediation in …

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  • Coagulation and Flocculation in Water and

    2020-12-26 · A Unique Synthesis of Macroporous N-Doped Carbon Composite Catalyst for Oxygen Reduction Reaction ... [10], thus enhancing electrocatalytic performance. Previous studies have revealed that electrocatalytic performance increases with an in-creasing pore size. As such, porous carbon catalysts with macropores (150 nm) have ... A study conducted on ...

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  • Facile Synthesis of Cu2O nanoparticle-loaded Carbon ...

    2020-2-11 · Optimizing the synthetic procedure by changing the parameters can affect other properties of nanocarriers and therefore a great deal of forethought should go into the design of the system for the particular application (Rezvantalab et al., 2018).During synthesis, parameters such as particle size, surface behavior, degree of crystallinity, degradation rate, and molecular weight can be modified ...

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  • A Unique Synthesis of Macroporous N-Doped Carbon

    2019-9-5 · D, Synthesis of Si/SAN composite microspheres and Si/[email protected] composite. E, The cycling performance of Si/[email protected], NG, and Si for 100 cycles at a current density of 0.1 A/g; SEM image of Si/[email protected] and high-resolution TEM image of Si/[email protected], with higher magnification in insets.

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  • Introduction of Fibre-Reinforced Polymers − Polymers

    2019-1-24 · Hexavalent chromium is a severe threat to human health since it has been found to cause cancer. ENMs exhibit a significant performance with regard to chromium removal. An investigation demonstrated the synthesis of amine functionalized cellulose acetate/silica composite membrane for the removal of Cr(VI) with a removal rate up to 19.45 mg/g.

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  • Frontiers | The Design of Poly(lactide-co-glycolide ...

    2017-7-18 · Poly(ethylene-co-acrylic acid) pellets (Primacor 5990I DOW [126]) were added to an aqueous solution of de-ionised water and ammonium hydroxide under reflux at 110 °C, to prepare a …

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  • The critical role of carbon in marrying silicon and ...

    2019-4-4 · Rapid microwave-assisted green synthesis of 3D hierarchical flower-shaped NiCo2O4 microsphere for high-performance supercapacitor. ACS Appl. Mater. Interfaces 6 , 1773–1780 (2014).

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