Synthesis and characterization of TiO2-montmorillonites doped with vanadium and/or carbon and their application for the photodegradation of sulphorhodamine B under UV-vis irradiation

被引：50

作者：

Chen, Ke ^{[1
]}

Li, Jingyi ^{[1
]}

Li, Jie ^{[1
]}

Zhang, Yumin ^{[1
]}

Wang, Wenxi ^{[1
]}

机构：

[1] Inner Mongolia Univ, Coll Chem & Chem Engn, Hohhot 010021, Inner Mongolia, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2010年 / 360卷 / 1-3期

关键词：

Carbon; Vanadium; Titania; Photodegradation; Montmorillonite; VISIBLE-LIGHT IRRADIATION; TIO2 PILLARED MONTMORILLONITE; PHOTOCATALYTIC ACTIVITY; HYDROTHERMAL PREPARATION; ORGANIC-COMPOUNDS; SULFORHODAMINE-B; METHYLENE-BLUE; DYE POLLUTANTS; DEGRADATION; TITANIA;

D O I：

10.1016/j.colsurfa.2010.02.005

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：

TiO2-montmorillonite(MMT) photocatalysts doped with vanadium and/or carbon were successfully synthesized by a sol-gel method It was novel that these photocatalysts had a high ratio of Ti/MMT, up to 120 mmol/g For comparison, TiO2 photocatalysts doped with vanadium and/or carbon were also prepared by the same method without MMT The as-prepared photocatalysts were characterized by XRD, BET, XPS, FTIR, UV-vis DRS and ICP. The vanadium and carbon species of the photocatalysts were detected by XPS. elemental analysis or FTIR The absorption edge of TiO2-MMT was blue-shifted compared to TiO2 by UV-vis DRS When a small amount of MMT was highly dispersed in the given TiO2 sol system, the silicate layers and the vacant cl-orbits of the transition metal ions of MMT had obvious effects on the microstructure and the photo-catalytic activities of the MMT-containing photocatalysts The degradation of aqueous sulphorhodamine B (SRB) on these photocatalysts was investigated under UV-vis irradiation (C) 2010 Elsevier B.V. All rights reserved

引用

页码：47 / 56

页数：10

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