The graft copolymerization of acrylic acid（AA） onto polyethylene glycol terephthalate（PET） fiber initiated by benzoy peroxide （BPO） was carried out in heterogeneous media.Moreover,modification of the grafted PET...The graft copolymerization of acrylic acid（AA） onto polyethylene glycol terephthalate（PET） fiber initiated by benzoy peroxide （BPO） was carried out in heterogeneous media.Moreover,modification of the grafted PET fiber（PET-AA） was done by changing the carboxyl group into acylamino and amino groups through the reaction with ethylenediamine.The new modified chelating fiber （NDWJN6） was characterized using elementary analysis,SEM and FT-IR spectroscopy.Adsorption kinetic curve indicated that NDWJN6 could fastly remove Pb^（2＋） from water,and adsorption isotherm also indicated that NDWJN6 had high equilibrium adsorption capacity for Pb^（2＋）.展开更多
A new base-aluminum-chloride-loaded fiber[PET-AA-NN-Al_2（OH）_nCl_（6-n）]was prepared with polyethylene glycol terephthalate （PET） as adsorbent for fast removal of arsenic（Ⅴ） from water.This new fibrous adsorbe...A new base-aluminum-chloride-loaded fiber[PET-AA-NN-Al_2（OH）_nCl_（6-n）]was prepared with polyethylene glycol terephthalate （PET） as adsorbent for fast removal of arsenic（Ⅴ） from water.This new fibrous adsorbent was characterized by using SEM and C NMR spectroscopy.Adsorption kinetic curve indicated that this new fibrous adsorbent could fast remove arsenic（Ⅴ） from water, and adsorption isotherm also indicated that PET-AA-NN-A1_2（OH）_nC1_（6-n） had high equilibrium adsorption capacity for arsenic（Ⅴ）.展开更多
The graft copolymerization of acrylic acid（AA） onto polyethylene glycol terephthalate（PET） fiber initialed by benzoy peroxide （BPO） was carried out in heterogeneous media.Moreover,modification of the grafted PET...The graft copolymerization of acrylic acid（AA） onto polyethylene glycol terephthalate（PET） fiber initialed by benzoy peroxide （BPO） was carried out in heterogeneous media.Moreover,modification of the grafted PET fiber（PET-AA） was done by changing the carboxyl group into acylamino group through the reaction with dimethylamine.The modified chelating fiber（NDWJN1） was characterized using elementary analysis,SEM and FT-IR spectroscopy.Adsorption kinetic curves indicated that NDWJNl could fast remove heavy metal ions and phytic acids from water effectively.Furthermore,batch kinetic studies indicated that heavy metal ions adsorbed to NDWJNl could be filted well by both pseudo-first-order and pseudo-second-order adsorption equations,but the intra-particle diffusion played a dominant role in the adsorption of phytic acids.展开更多
The new hyper cross-linked chelating resin NDWJN2 modified with carboxyl groups was prepared for removal of Cu^（2＋） and Ni^（2＋） from water.NDWJN2 was characterized using BET,SEM and FT-IR spectroscopy.Comparing ...The new hyper cross-linked chelating resin NDWJN2 modified with carboxyl groups was prepared for removal of Cu^（2＋） and Ni^（2＋） from water.NDWJN2 was characterized using BET,SEM and FT-IR spectroscopy.Comparing with commercial resins D113 and IRC84,NDWJN2 could remove Cu^（2＋） and Ni^（2＋） from water more effectively.Langmuir model could fit adsorption isotherms well.展开更多
基金support provided by the National Science Funds for Young Scientists(No. 51008152)the Nature Science Fund of Jiangsu Province(No.BK2010381)the Fundamental Research Funds for the Central Universities
文摘The graft copolymerization of acrylic acid（AA） onto polyethylene glycol terephthalate（PET） fiber initiated by benzoy peroxide （BPO） was carried out in heterogeneous media.Moreover,modification of the grafted PET fiber（PET-AA） was done by changing the carboxyl group into acylamino and amino groups through the reaction with ethylenediamine.The new modified chelating fiber （NDWJN6） was characterized using elementary analysis,SEM and FT-IR spectroscopy.Adsorption kinetic curve indicated that NDWJN6 could fastly remove Pb^（2＋） from water,and adsorption isotherm also indicated that NDWJN6 had high equilibrium adsorption capacity for Pb^（2＋）.
基金support provided by the National Science Funds for Young Scientists(No.51008152)
文摘A new base-aluminum-chloride-loaded fiber[PET-AA-NN-Al_2（OH）_nCl_（6-n）]was prepared with polyethylene glycol terephthalate （PET） as adsorbent for fast removal of arsenic（Ⅴ） from water.This new fibrous adsorbent was characterized by using SEM and C NMR spectroscopy.Adsorption kinetic curve indicated that this new fibrous adsorbent could fast remove arsenic（Ⅴ） from water, and adsorption isotherm also indicated that PET-AA-NN-A1_2（OH）_nC1_（6-n） had high equilibrium adsorption capacity for arsenic（Ⅴ）.
基金support provided by the Key National Nature Science Fund(No.50938004)the National Science Funds for Young Scientists(No.50102582)+1 种基金Nature Science Fund of Jiangsu Province(No. BK2010381)the Fundamental Research Funds for the Central Universities
文摘The graft copolymerization of acrylic acid（AA） onto polyethylene glycol terephthalate（PET） fiber initialed by benzoy peroxide （BPO） was carried out in heterogeneous media.Moreover,modification of the grafted PET fiber（PET-AA） was done by changing the carboxyl group into acylamino group through the reaction with dimethylamine.The modified chelating fiber（NDWJN1） was characterized using elementary analysis,SEM and FT-IR spectroscopy.Adsorption kinetic curves indicated that NDWJNl could fast remove heavy metal ions and phytic acids from water effectively.Furthermore,batch kinetic studies indicated that heavy metal ions adsorbed to NDWJNl could be filted well by both pseudo-first-order and pseudo-second-order adsorption equations,but the intra-particle diffusion played a dominant role in the adsorption of phytic acids.
基金support provided by the Key National Nature Science Fund(No50938004)the National Science Funds for Young Scientists(No50102582)+1 种基金Nature Science Fund of Jiangsu Province(No BK2010381)the Fundamental Research Funds for the Central Universities
文摘The new hyper cross-linked chelating resin NDWJN2 modified with carboxyl groups was prepared for removal of Cu^（2＋） and Ni^（2＋） from water.NDWJN2 was characterized using BET,SEM and FT-IR spectroscopy.Comparing with commercial resins D113 and IRC84,NDWJN2 could remove Cu^（2＋） and Ni^（2＋） from water more effectively.Langmuir model could fit adsorption isotherms well.
