Topotactic soft chemical synthesis and photocatalytic performance of one-dimensional AgNbO3 nanostructures

被引：15

作者：

Cao, Liyun ^{[1
]}

Guo, Zhanglin ^{[1
]}

Huang, Jianfeng ^{[1
]}

Li, Cuiyan ^{[1
]}

Fei, Jie ^{[1
]}

Feng, Qi ^{[2
]}

Wen, Puhong ^{[3
]}

Sun, Youquan ^{[4
]}

Kong, Xingang ^{[1
,4
]}

机构：

[1] Shaanxi Univ Sci & Technol, Sch Mat Sci & Engn, Xian 710021, Shaanxi, Peoples R China

[2] Kagawa Univ, Fac Engn, Dept Adv Mat Sci, Takamatsu, Kagawa 7610396, Japan

[3] Baoji Univ Arts & Sci, Dept Chem & Chem Engn, Baoji 721013, Shaanxi, Peoples R China

[4] Anhui Deli Household Glass Co Ltd, Bengbu 223121, Anhui, Peoples R China

来源：

MATERIALS LETTERS | 2014年 / 137卷

基金：

中国博士后科学基金;

关键词：

In situ topotactic; AgNbO3; One-dimensional; Semiconductors; Microstructure; Nanocrystalline materials; HYDROTHERMAL SYNTHESES; MANGANESE OXIDES; TRANSFORMATION; NIOBATES;

D O I：

10.1016/j.matlet.2014.08.150

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A topotactic soft chemical process was used for the synthesis of one-dimensional AgNbO3 nanostructures. Firstly, using a tunnel structure potassium niobate K2Nb2O6 center dot nH(2)O filiform crystal as precursor, the K+ in K2Nb2O6 center dot nH(2)O were exchanged by an Ag+ in the AgNO3 water solution, forming Ag+ ion-exchanged sample. Secondly, the Ag+ ion-exchanged sample was heat-treated to obtain the perovskite AgNbO3 by in situ topotactic structural transformation reaction. The one-dimensional nanostructured AgNbO3 was characterized by XRD, FE-SEM, TEM, SAED, EDS and UV-vis diffuse reflectance spectra. The one-dimensional AgNbO3 nanostructures were constructed from nanocrystals arranged along [011]-crystal axis and with predominantly exposed (100) facet. The samples were able to degrade MB under ultraviolet irradiation and catalyze water-splitting in aqueous solution under illumination of visible light. Crown Copyright (C) 2014 Published by Elsevier B.V. All rights reserved.

引用

页码：110 / 112

页数：3

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