Results 141 to 150 of about 585 (160)
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Journal of Colloid and Interface Science, 2021
Developing cheap, green, efficient and renewable adsorbents to address the issue of heavy metal pollution is highly desired for satisfying the requirements of economy sustainability and water security. Herein, a composite aerogel composed of bacterial cellulose (BC) and poly(amidoxime) (PAO) has been fabricated via a facile and scalable self-assembly ...
Huaimeng, Li +6 more
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Developing cheap, green, efficient and renewable adsorbents to address the issue of heavy metal pollution is highly desired for satisfying the requirements of economy sustainability and water security. Herein, a composite aerogel composed of bacterial cellulose (BC) and poly(amidoxime) (PAO) has been fabricated via a facile and scalable self-assembly ...
Huaimeng, Li +6 more
openaire +2 more sources
Journal of Applied Polymer Science, 2011
AbstractGraft copolymerization of methyl acrylate (MA) and acrylonitrile (AN) onto acacia cellulose was carried out using free radical initiating process in which ceric ammonium nitrate (CAN) was used as an initiator. The optimum grafting yield was determined by the certain amount of acacia cellulose (AGU), mineral acid (H2SO4), CAN, MA, and AN at 0 ...
Simon Siew Yong Wen +4 more
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AbstractGraft copolymerization of methyl acrylate (MA) and acrylonitrile (AN) onto acacia cellulose was carried out using free radical initiating process in which ceric ammonium nitrate (CAN) was used as an initiator. The optimum grafting yield was determined by the certain amount of acacia cellulose (AGU), mineral acid (H2SO4), CAN, MA, and AN at 0 ...
Simon Siew Yong Wen +4 more
openaire +1 more source
Journal of Hazardous Materials, 2022
Uranium extraction from natural seawater and wastewater are quintessential requirements to supply uninterrupted carbon-free nuclear energy and to prevent potential radiochemical and toxicological effects, respectively. Owing to the complexity and low-concentration uranium of these water samples, the design and synthesis of sorbent materials for uranium
Zia, Ahmad +7 more
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Uranium extraction from natural seawater and wastewater are quintessential requirements to supply uninterrupted carbon-free nuclear energy and to prevent potential radiochemical and toxicological effects, respectively. Owing to the complexity and low-concentration uranium of these water samples, the design and synthesis of sorbent materials for uranium
Zia, Ahmad +7 more
openaire +2 more sources
Journal of Polymer Research, 2021
In the present research, ultrafine styrene–acrylonitrile copolymer nanofibers (SAN-NFs) were prepared based on the forcespinning method. The SAN solution of 10% in THF: DMF solvent mixture, a 27-gauge nozzle and a rotational speed of 5000 rpm were the optimized parameters for the preparation of SAN-NFs with an average diameter of 335 nm.
Roshanak Rostamian +2 more
openaire +1 more source
In the present research, ultrafine styrene–acrylonitrile copolymer nanofibers (SAN-NFs) were prepared based on the forcespinning method. The SAN solution of 10% in THF: DMF solvent mixture, a 27-gauge nozzle and a rotational speed of 5000 rpm were the optimized parameters for the preparation of SAN-NFs with an average diameter of 335 nm.
Roshanak Rostamian +2 more
openaire +1 more source
Graphene Oxide Functionalization With Poly(Amidoxime) via Optimized Polyacrylonitrile Grafting
Journal of Applied Polymer ScienceABSTRACT This study proposes the synthesis of a poly(amidoxime) functionalized graphene oxide by using polyacrylonitrile (PAN)‐grafted graphene oxide (GO) precursor with different grafting percentages. A significant novelty in this study is that the emulsion graft polymerization of acrylonitrile on a gamma‐irradiated and silanized GO ...
Fozia Saleem +6 more
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Science China Chemistry, 2014
The development of efficient materials for high extraction of uranium (UO22+) from seawater is critical for nuclear energy. Poly(amidoxime)-reduced graphene oxide (PAO/rGO) composites with excellent adsorption capability for UO22+ were synthesized by in situ polymerization of acrylonitrile monomers on GO surfaces, followed by amidoximation treatment ...
DaDong Shao, JiaXing Li, XiangKe Wang
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The development of efficient materials for high extraction of uranium (UO22+) from seawater is critical for nuclear energy. Poly(amidoxime)-reduced graphene oxide (PAO/rGO) composites with excellent adsorption capability for UO22+ were synthesized by in situ polymerization of acrylonitrile monomers on GO surfaces, followed by amidoximation treatment ...
DaDong Shao, JiaXing Li, XiangKe Wang
openaire +1 more source
Colloid and Polymer Science, 2010
Monodisperse poly(styrene-co-acrylonitrile) microspheres were prepared by dispersion copolymerization of styrene (St) and acrylonitrile (AN) in ethanol (EtOH)/isopropanol medium. 2,2′-Azobis(isobutyronitrile) (AIBN) and poly(acrylic acid) (PAA) were utilized as initiator and steric stabilizer, respectively. The effects of PAA stabilizer, AIBN initiator,
Ching-Wen Chen +2 more
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Monodisperse poly(styrene-co-acrylonitrile) microspheres were prepared by dispersion copolymerization of styrene (St) and acrylonitrile (AN) in ethanol (EtOH)/isopropanol medium. 2,2′-Azobis(isobutyronitrile) (AIBN) and poly(acrylic acid) (PAA) were utilized as initiator and steric stabilizer, respectively. The effects of PAA stabilizer, AIBN initiator,
Ching-Wen Chen +2 more
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Nano, 2016
A novel conducting copolymer based on amidoxime groups, polypyrrole and graphene oxide was synthesized by in situ copolymerization by usin g two monomers. The monomer, amidoxime-pyrrole, was synthesized by amidoximation of 1-(2-cyanoethyl) pyrrole.
Hongyi Qin +7 more
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A novel conducting copolymer based on amidoxime groups, polypyrrole and graphene oxide was synthesized by in situ copolymerization by usin g two monomers. The monomer, amidoxime-pyrrole, was synthesized by amidoximation of 1-(2-cyanoethyl) pyrrole.
Hongyi Qin +7 more
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Journal of Polymer Science Part B: Polymer Physics, 2004
AbstractThe interaction of uranyl ions (UO) with interpenetrating polymer networks (IPNs) based on amidoximated poly(acrylonitrile)/poly(N‐vinyl 2‐pyrrolidone) was examined. The adsorption capacity of IPN hydrogels as well as the adsorption kinetics and the effect of temperature on UO ion adsorption were investigated.
Pekel, N +2 more
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AbstractThe interaction of uranyl ions (UO) with interpenetrating polymer networks (IPNs) based on amidoximated poly(acrylonitrile)/poly(N‐vinyl 2‐pyrrolidone) was examined. The adsorption capacity of IPN hydrogels as well as the adsorption kinetics and the effect of temperature on UO ion adsorption were investigated.
Pekel, N +2 more
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Langmuir
The efficient extraction of uranium from seawater is an important step in the sustainable development of nuclear energy. Polymer-based absorbents are considered to be ideal materials due to their high adsorption properties and industrialization feasibility.
Rui Yu +5 more
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The efficient extraction of uranium from seawater is an important step in the sustainable development of nuclear energy. Polymer-based absorbents are considered to be ideal materials due to their high adsorption properties and industrialization feasibility.
Rui Yu +5 more
openaire +2 more sources