Investigation of a TiO2 photocatalyst immobilized with poly(vinyl alcohol)

被引：33

作者：

Hegedus, Peter ^{[1
]}

Szabo-Bardos, Erzsebet ^{[1
]}

Horvath, Otto ^{[1
]}

Szabo, Peter ^{[2
]}

Horvath, Krisztian ^{[2
]}

机构：

[1] Univ Pannonia, Inst Chem, Dept Gen & Inorgan Chem, POB 158, H-8201 Veszprem, Hungary

[2] Univ Pannonia, Inst Chem, Dept Analyt Chem, POB 158, H-8201 Veszprem, Hungary

来源：

CATALYSIS TODAY | 2017年 / 284卷

关键词：

TiO2 based photocatalysis; Immobilization; Thermal decomposition of PVA; Organic pollutant; Triton X-100; DEGRADATION; BIODEGRADATION; SURFACTANTS; POLYETHOXYLATE; NANOPARTICLES; WATER; DYES;

D O I：

10.1016/j.cattod.2016.11.050

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Immobilization of TiO2 photocatalyst was realized with application of poly(vinyl alcohol) (PVA). However, these PVA-based foils were too instable to be used for photocatalytic water cleaning. Their stability could be significantly enhanced by a thermal treatment, but this procedure generated various water-soluble derivatives such as aldehydes, ketones, and aromatic species. Photocatalytic pre-treatment of the foils proved to be suitable to remove these products from the surface of the composite. After three subsequent pre-treating cycles of irradiation and rinsing, the PVA-TiO2 foil became applicable for photocatalytic degradation of Triton X-100, a widely used non-ionic detergent. The composite catalyst kept its stability and efficiency even after some cycles of re-usage, while its surface underwent a perceptible, although quantitatively negligible degradation. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：179 / 186

页数：8

共 26 条

[1] Photo-catalytic degradation of Metanil Yellow dye using TiO2 immobilized into polyvinyl alcohol/acrylic acid microgels prepared by ionizing radiation [J].

Abd El-Rehim, Hassan A. ;

Hegazy, El-Sayed A. ;

Diaa, Doaa A. .

REACTIVE & FUNCTIONAL POLYMERS, 2012, 72 (11) :823-831

[2] Biodegradation of octylphenol polyethoxylate surfactant Triton X-100 by selected microorganisms [J].

Chen, HJ ;

Tseng, DH ;

Huang, SL .

BIORESOURCE TECHNOLOGY, 2005, 96 (13) :1483-1491

[3] Solid-phase photocatalytic degradation of PVC-TiO2 polymer composites [J].

Cho, SM ;

Choi, WY .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2001, 143 (2-3) :221-228

[4]

George S., 2001, Infrared Characteristic Group Frequencies, V3rd

[5] Adsorption and photocatalytic degradation of anionic dyes on Chitosan/PVA/Na-Titanate/TiO2 composites synthesized by solution casting method [J].

Habiba, Umma ;

Islam, Md. Shariful ;

Siddique, Tawsif A. ;

Afifi, Amalina M. ;

Ang, Bee Chin .

CARBOHYDRATE POLYMERS, 2016, 149 :317-331

[6] TiO2-Mediated Photocatalytic Mineralization of a Non-Ionic Detergent: Comparison and Combination with Other Advanced Oxidation Procedures [J].

Hegedus, Peter ;

Szabo-Bardos, Erzsebet ;

Horvath, Otto ;

Horvath, Krisztian ;

Hajos, Peter .

MATERIALS, 2015, 8 (01) :231-250

[7] Preparation of poly(vinyl alcohol)/poly(acrylic acid)/TiO2/carbon nanotube composite nanofibers and their photobleaching properties [J].

Jeon, Sonyeo ;

Yun, Jumi ;

Lee, Young-Seak ;

Kim, Hyung-Il .

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2012, 18 (01) :487-491

[8] Immobilization of TiO2 nanoparticles in polymeric substrates by chemical bonding for multi-cycle photodegradation of organic pollutants [J].

Lei, Ping ;

Wang, Feng ;

Gao, Xiaowei ;

Ding, Yanfen ;

Zhang, Shimin ;

Zhao, Jincai ;

Liu, Shaoren ;

Yang, Mingshu .

JOURNAL OF HAZARDOUS MATERIALS, 2012, 227 :185-194

[9] Preparation of transparent PVA/TiO2 nanocomposite films with enhanced visible-light photocatalytic activity [J].

Liu, Xiuyun ;

Chen, Qirong ;

Lv, Lizhen ;

Feng, Xiaoying ;

Meng, Xiangfu .

CATALYSIS COMMUNICATIONS, 2015, 58 :30-33

[10] Nanocrystalline TiO2 Thin Films Fabricated Via a Polyelectrolyte Multilayer-Assisted Sol-Gel Reaction [J].

Logar, Manca ;

Jancar, Bostjan ;

Suvorov, Danilo .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2010, 93 (11) :3679-3685

← 1 2 3 →