Microwave hydrothermal synthesis of Ag2CrO4 photocatalyst for fast degradation of PCP-Na under visible light irradiation

被引：60
作者：
Liu, Yu [1 ,2 ]
Yu, Hongbing [1 ]
Cai, Mei [1 ]
Sun, Jingwen [1 ]
机构：
[1] Nankai Univ, Coll Environm Sci & Engn, Tianjin 300071, Peoples R China
[2] Tianjin Hydraul Sci Res Inst, Tianjin 300061, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2012年 / 26卷
基金：
中国国家自然科学基金;
关键词：
Ag2CrO4; Photocatalysis; Microwave-hydrothermal; Visible light; Sodium pentachlorophenate (PCP-Na); PENTACHLOROPHENOL; TOXICITY; SERIES;
D O I：
10.1016/j.catcom.2012.04.017
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：
Visible-light-active Ag2CrO4 photocatalysts were first synthesized by a microwave hydrothermal (MH) method, which is highly efficient (180 degrees C for only 1 h). The products were characterized by XRD, SEM, Zeta potential and UV-vis diffuse reflectance spectroscopy. The photocatalytic activity of Ag2CrO4 was evaluated by the degradation of PCP-Na aqueous solution under visible light irradiation. The reduction of total organic carbon (TOC) (about 98.2% after 5 h of irradiation) showed that the mineralization of PCP-Na over Ag2CrO4 photocatalysts was realized. Additionally, the possible photocatalytic mechanism of the Ag2CrO4 was proposed to elucidate its superior photocatalytic activity. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：63 / 67
页数：5
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