Phosphate-assisted one-pot synthesis of silver phosphate-mesoporous silica composite from sodium silicate and silver nitrate

被引：3
作者：
Yang, Jiu-Yang [1 ]
Zheng, Chun-Ming [2 ]
Wang, Yan-Qing [2 ]
Guo, Ming-Lin [2 ,3 ]
机构：
[1] Tianjin Polytech Univ, Sch Mat, Tianjin 300387, Peoples R China
[2] Tianjin Polytech Univ, Sch Environm & Chem Engn, Tianjin 300387, Peoples R China
[3] Tianjin Polytech Univ, Key Lab Hollow Fiber Membrane Mat & Membrane Proc, Tianjin 300387, Peoples R China
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2015年 / 204卷
基金：
中国国家自然科学基金;
关键词：
Sodium silicate; Silver nitrate; Silver phosphate-mesoporous silica; composite; Photocatalyst; Methyl orange; ENHANCED PHOTOCATALYTIC ACTIVITY; VISIBLE-LIGHT IRRADIATION; AG3PO4; SUB-MICROCRYSTALS; AG NANOWIRES; NANOCOMPOSITES; SEMICONDUCTOR; PARTICLES; STABILITY; COPOLYMER; AG/AG3PO4;
D O I：
10.1016/j.micromeso.2014.11.006
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A facile one-pot method for silver phosphate-mesoporous silica composite was reported. In the synthesis procedure, sodium silicate was firstly added dropwise to acidic Pluronic P123 and silver nitrate aqueous solution, followed by addition of phosphate to adjust the pH to near-neutral. Through the salting-out and flocculation effect of phosphate, tiny silver phosphate particles and silicate oligomers were formed and mixed together to build the composite material. It was a new type of mesoporous silica composite which had a structure similar to SBA-15. And it was found to have higher photocatalytic activity than pure silver phosphate in the degradation of methyl orange under ultraviolet light irradiation. (C) 2014 Elsevier Inc. All rights reserved.
引用
收藏
页码：58 / 61
页数：4
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