Removal of a Cationic Dye by Adsorption/Photodegradation Using Electrospun PAN/O-MMT Composite Nanofibrous Membranes Coated with TiO2

被引：42

作者：

Wang, Qingqing ^{[1
]}

Gao, Dawei ^{[1
]}

Gao, Chuntao ^{[1
]}

Wei, Qufu ^{[1
]}

Cai, Yibing ^{[1
]}

Xu, Jing ^{[2
]}

Liu, Xiaoya ^{[2
]}

Xu, Yang ^{[1
]}

机构：

[1] Jiangnan Univ, Minist Educ, Key Lab Ecotext, Wuxi 214122, Peoples R China

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

来源：

INTERNATIONAL JOURNAL OF PHOTOENERGY | 2012年 / 2012卷

关键词：

ADSORPTION; BLUE; SOL;

D O I：

10.1155/2012/680419

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polyacrylonitrile (PAN)/organic-modified montmorillonite (O-MMT) composite nanofibrous membranes were firstly prepared by electrospinning and then coated with titanium dioxide (TiO2) using spin coating technique. The structural morphology of the nanofibrous membranes with different mass ratio of O-MMT before and after spin coating was investigated by scanning electron microscope (SEM) and transmission electron microscope (TEM). The chemical property of adsorbed methylene blue (MB) was analyzed by infrared spectroscopy (IR). The adsorption and photodegradation capability of the TiO2-coated PAN/O-MMT composite nanofibrous membranes were evaluated by adsorption rate of MB and K/S values of the membranes before and after UV irradiation. The experimental results indicated that with the increase of O-MMT amount, the diameters of the nanofibers decreased and the adsorption rate of MB was evidently improved. Besides, with the increase of TiO2 film layers, the photocatalytic properties were enhanced while the adsorption process was slowed down.

引用

页数：8

共 23 条

[1]

Akçay G, 1999, TURK J CHEM, V23, P105

[2] Structures, thermal stability, and crystalline properties of polyamide6/organic-modified Fe-montmorillonite composite nanofibers by electrospinning [J].

Cai, Yibing ;

Li, Qi ;

Wei, Qufu ;

Wu, Yibang ;

Song, Lei ;

Hu, Yuan .

JOURNAL OF MATERIALS SCIENCE, 2008, 43 (18) :6132-6138

[3]

Du J, 2005, COLOR TECHNOL, V121, P29

[4] Photoelectrocatalytic activity of mesoporous TiO2 thin film electrodes [J].

Gan, Wee Yong ;

Zhao, Huijun ;

Amal, Rose .

APPLIED CATALYSIS A-GENERAL, 2009, 354 (1-2) :8-16

[5] Adsorption and kinetic studies of the intercalation of some organic compounds onto Na+-montmorillonite [J].

Gemeay, AH ;

El-Sherbiny, AS ;

Zaki, AB .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2002, 245 (01) :116-125

[6] Properties of peroxotitanium acid solution and peroxo-modified anatase sol derived from peroxotitanium hydrate [J].

Ichinose, H ;

Terasaki, M ;

Katsuki, H .

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2001, 22 (1-2) :33-40

[7] Sorption of dyes from aqueous solutions onto fly ash [J].

Janos, P ;

Buchtová, H ;

Ryznarová, M .

WATER RESEARCH, 2003, 37 (20) :4938-4944

[8]

Latif A, 2010, J CHEM SOC PAKISTAN, V32, P115

[9] Preparation of porous PMMA/Na+-montmorillonite cation-exchange membranes for cationic dye adsorption [J].

Lin, Ray-Yi ;

Chen, Bang-Shuo ;

Chen, Guan-Liang ;

Wu, Jeng-Yue ;

Chiu, Hsin-Cheng ;

Suen, Shing-Yi .

JOURNAL OF MEMBRANE SCIENCE, 2009, 326 (01) :117-129

[10] Immobilization of Cibacron blue F3GA on electrospun polysulphone ultra-fine fiber surfaces towards developing an affinity membrane for albumin adsorption [J].

Ma, Zuwei ;

Masaya, Kotaki ;

Ramakrishna, Seeram .

JOURNAL OF MEMBRANE SCIENCE, 2006, 282 (1-2) :237-244

← 1 2 3 →