Preparation and photo-catalytic performance of β2-SiW11/PANI/TiO2 photo-catalyst

被引：3

作者：

Yang, Mingrui ^{[1
]}

Ma, Ronghua ^{[1
]}

Chen, Lin ^{[1
]}

Zhang, Chengli ^{[1
]}

Cao, Rui ^{[1
]}

Wen, Qi ^{[1
]}

机构：

[1] Qiqihar Univ, Coll Chem & Chem Engn, Qiqihar 161006, Peoples R China

来源：

JOURNAL OF COORDINATION CHEMISTRY | 2020年 / 73卷 / 24期

关键词：

Heteropoly tungstate; TiO2; photo-catalytic performance; methylene blue; PHOTOCATALYTIC ACTIVITY; DEGRADATION; TIO2; COMPOSITES; REMOVAL; ACID;

D O I：

10.1080/00958972.2020.1849641

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Using heteropoly tungstate beta(2)-K8SiW11O39 center dot xH(2)O as the active component, the tungstate was loaded on PANI/TiO2 by the dipping method to prepare a composite photo-catalyst beta(2)-SiW11/PANI/TiO2. The new ternary composite material, beta(2)-SiW11/PANI/TiO2, was characterized by IR, UV, TG, XPS, XRD and SEM. Meanwhile, the degradation of methylene blue solution was used as a probe reaction to evaluate the photo-catalytic performance of beta(2)-SiW11/PANI/TiO2. The effect of solution pH and amount of composite material on photo-catalytic activity was investigated. Compared with TiO2 and silicate, the composite material beta(2)-SiW11/PANI/TiO2 as photo-catalyst exhibited enhanced photo-catalytic performance due to the synergic effect between TiO2 and heteropoly tungstate. Under optimum conditions, 92.58% of the dye was decomposed in 150 min. Our present findings will have a profound effect on the use of beta(2)-SiW11/PANI/TiO2 composite as photo-catalytic material.

引用

页码：3420 / 3430

页数：11

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