Preparation and Adsorption Properties of Chelating Resins from Thiosemicarbazide and Formaldehyde

被引：16

作者：

Zhang, Liping ^{[1
,2
]}

Ni, Caihua ^{[1
,2
]}

Zhu, Changping ^{[2
]}

Jiang, Xiang ^{[1
]}

Liu, Yuping ^{[3
]}

Huang, Bo ^{[2
]}

机构：

[1] Jiangnan Univ, Sch Chem & Mat Engn, Wuxi 214122, Peoples R China

[2] Hohai Univ, Coll Comp & Informat Engn, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 213200, Peoples R China

[3] Nankai Univ, Coll Chem, Tianjin 300071, Peoples R China

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2009年 / 112卷 / 04期

基金：

中国国家自然科学基金;

关键词：

adsorption; ESCA/XPS; ion exchangers; resins; METAL-IONS; AROMATIC DITHIOLS; GOLD(III);

D O I：

10.1002/app.29627

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A novel chelating resin was synthesized in just one step under mild synthetic conditions. The synthesis was carried Out through the copolymerization of thiosemicarbazide and formaldehyde in an aqueous solution. The adsorption properties for some noble metal ions were investigated The results showed that the resin had high adsorption selectivity for Au(III) and Ag(I). The adsorption capacities for the two metal ions reached LIP to 7.3 and 11.8 mmol/g, respectively. The adsorption rate for the two metal ions in a dilute Solution was 99.9%. The adsorption fit first-order kinetics, and an isothermal adsorption study indicated that it corresponded to Langmuir monomolecular layer adsorption. The change in the bonding energy during the chelatin process was investigated with X-ray photoelectron spectroscopy. The study revealed that nitrogen and sulfur atoms of the resins were electron donors and metal ions were electron acceptors in the process. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 112: 2455-2461, 2009

引用

页码：2455 / 2461

页数：7