Synthesis, characterization and adsorption studies of an acrylic acid-grafted sodium alginate-based TiO2 hydrogel nanocomposite

被引：89

作者：

Thakur, Sourbh ^{[1
]}

Arotiba, Omotayo ^{[1
,2
]}

机构：

[1] Univ Johannesburg, Dept Appl Chem, Johannesburg, South Africa

[2] Univ Johannesburg, Ctr Nanomat Sci Res, Johannesburg, South Africa

来源：

ADSORPTION SCIENCE & TECHNOLOGY | 2018年 / 36卷 / 1-2期

基金：

新加坡国家研究基金会;

关键词：

Adsorption; sodium alginate; hydrogel nanocomposite; TiO2; nanoparticles; methyl violet dye; ION-EXCHANGE MEMBRANES; AQUEOUS-SOLUTION; METHYL-VIOLET; SUPERABSORBENT HYDROGELS; ENHANCED ADSORPTION; EFFECTIVE REMOVAL; DYE DEGRADATION; CATIONIC DYES; CONGO RED; WATER;

D O I：

10.1177/0263617417700636

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Hydrogel nanocomposites were synthesized by solution polymerization of acrylic acid in the presence of sodium alginate biopolymer and TiO2 nanoparticle. TiO2 nanoparticle and N,N-methylene-bis-acrylamide was used as an inorganic and organic crosslinker, respectively. The structure and morphology of the nanocomposites were investigated using X-Ray Diffraction (XRD), Fourier Transform Infra-Red Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Brunauer-Emmett-Teller (BET) and thermogravimetric analysis techniques. The nanocomposites hydrogel was used for the adsorption of methyl violet dye from water. The influence of TiO2 nanoparticle, sodium alginate content and grafting on adsorption were studied. The results showed that a pseudo-second-order adsorption kinetic was predominant in the adsorption of methyl violet onto the nanocomposite hydrogel. The experimental equilibrated adsorption capacity of the nanocomposite hydrogel agrees with Langmuir isotherm. Maximum adsorption capacity of 1156.61 mgg(-1) and adsorption efficiency of 99.6% towards methyl violet were obtained for the hydrogel nanocomposite.

引用

页码：458 / 477

页数：20

共 50 条

[1]

[Anonymous], 1963, J. Sanit. Eng. Div. Am. Soc. Civ. Eng, DOI DOI 10.1061/JSEDAI.0000430

[2] Superparamagnetic Core-Shell Polymeric Nanocomposites for Efficient Removal of Methylene Blue from Aqueous Solutions [J].

Atta, Ayman ;

Akl, Magda A. ;

Youssef, AbdElfatah M. ;

Ibraheim, Mohamed A. .

ADSORPTION SCIENCE & TECHNOLOGY, 2013, 31 (05) :397-419

[3] Synthesis of nanocomposite gold-semiconductor materials by seed-growth method [J].

Bakshi, Mandeep Singh ;

Thakur, Pankaj ;

Sachar, Shweta ;

Banipal, Tarlok Singh .

MATERIALS LETTERS, 2007, 61 (17) :3762-3767

[4] Synthesis and swelling behaviors of sodium carboxymethyl cellulose-g-poly(AA-co-AM-co-AMPS)/MMT superabsorbent hydrogel [J].

Bao, Yan ;

Ma, Jianzhong ;

Li, Na .

CARBOHYDRATE POLYMERS, 2011, 84 (01) :76-82

[5] Cubic mesoporous frameworks with a mixed semiconductor nanocrystalline wall structure and enhanced sensitivity to visible light [J].

Bartl, MH ;

Puls, SP ;

Tang, J ;

Lichtenegger, HC ;

Stucky, GD .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (23) :3037-3040

[6] Adsorption kinetics and thermodynamic parameters of cationic dyes from aqueous solutions by using a new strong cation-exchange resin [J].

Bayramoglu, Gulay ;

Altintas, Begum ;

Arica, M. Yakup .

CHEMICAL ENGINEERING JOURNAL, 2009, 152 (2-3) :339-346

[7]

Bergaya F., 2013, Handbook of Clay. Science, V5A, P655, DOI DOI 10.1016/B978-0-08-098258-8.00020-1

[8] Enhanced adsorption of synthetic dyes from aqueous solution by a semi-interpenetrating network hydrogel based on starch [J].

Bhattacharyya, Ruma ;

Ray, Samit Kumar .

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2014, 20 (05) :3714-3725

[9] A systematic method of synthesizing composite superabsorbent hydrogels from crosslink copolymer for removal of textile dyes from water [J].

Bhattacharyya, Ruma ;

Ray, Samit Kumar ;

Mandal, Bidyadhar .

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2013, 19 (04) :1191-1203

[10] Heterogeneous photocatalytic degradation of the anthraquinonic dye, Acid Blue 25 (AB25): a kinetic approach [J].

Bouzaida, I ;

Ferronato, C ;

Chovelon, JM ;

Rammah, ME ;

Herrmann, JM .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2004, 168 (1-2) :23-30

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