Removal of Basic Dyes from Aqueous Solutions by Crosslinked-Acrylic Acid/Acrylamidopropane Sulfonic Acid Hydrogels

被引：45

作者：

Akkaya, M. Cagil ^{[1
]}

Emik, Serkan ^{[1
]}

Guclu, Gamze ^{[1
]}

Iyim, Tuelin Banu ^{[1
]}

Ozgumus, Saadet ^{[1
]}

机构：

[1] Istanbul Univ, Fac Engn, Dept Chem Engn, TR-34320 Istanbul, Turkey

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2009年 / 114卷 / 02期

关键词：

hydrogel; acrylic acid; 2-acrylamido-2-methlypropane sulfonic acid; basic dye; adsorption; ACRYLAMIDE-BASED HYDROGELS; SWELLING BEHAVIOR; CATIONIC DYES; WASTE-WATER; AZO DYES; ADSORPTION; SORPTION; IONS; GELS;

D O I：

10.1002/app.30704

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理];

摘要：

In this study, Acrylic acid (AA)/2-acrylamido-2-methlypropane sulfonic acid (AMPS) hydrogels were prepared by free radical polymerization in aqueous solutions of AA, AMPS, and N,N-methylenebisacrylamide (NMBA) as crosslinker. Potassium persulfate (PPS)/potassium bisulfide (PBS) were used as initiator and accelerator pair. The water absorption capacities and dye adsorption properties of the hydrogels were investigated. Adsorption properties of the hydrogels, were evaluated by depending on different adsorption conditions such as different initial dye concentration and contact time. The concentrations of the dyes were determined using UV/Vis Spectrophotometer at wavelength 530 nm for safranine T (ST) and 622 nm for brilliant cresyl blue (BCB). Adsorption kinetic studies showed that pseudo-first order kinetic model is suitable to explain the adsorption kinetic data of the hydrogels. Langmuir and Freundlich isotherm models were used to describe adsorption data. The result revealed that the adsorption of basic dyes onto hydrogels fit very well both Langmuir and Freundlich isotherms. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 114: 1150-1159, 2009

引用

页码：1150 / 1159

页数：10

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