Studies on the Ionic Liquid-Assisted Hydrothermal Synthesis of Zn2SnO4

被引：1

作者：

Wang Zhen-xing ^{[1
]}

Xue Juan-qin ^{[1
]}

Li Di ^{[1
]}

机构：

[1] Xian Univ Architecture & Technol, Sch Met Engn, Xian 710055, Peoples R China

来源：

SPECTROSCOPY AND SPECTRAL ANALYSIS | 2017年 / 37卷 / 04期

关键词：

The ion liquid; Hydrothermal synthesis; Zinc stannate; Photocatalysis; PHOTOCATALYTIC ACTIVITY; NANOTUBE ARRAYS; PERFORMANCE; DEGRADATION; NANOWIRES; BATTERIES; CARBON; ROUTE; ANODE;

D O I：

10.3964/j.issn.1000-0593(2017)04-1198-07

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Zinc stannate was prepared with ionic liquid-assisted hydrothermal method. The effect of pH value, hydrothermal time and temperature on the crystal structure, morphology and photocatalytic activity had been investigated in detail. The crystal structure, degree of crystallinity and phase purity of the zinc stannate were characterized with X-ray diffractions (XRD). Transmission electron microscopy (TEM) is used to analyze the morphology of the prepared zinc stannate. The photocatalytic activity of the samples was evaluated using degradation of methylene blue under ultraviolet light irradiation. The results indicated that the Zn2SnO4 sample prepared at pH 9, 220 degrees C and 32 h showed the highest activity for photocatalytic degradation of methylene blue. Research on the photocatalytic mechanism of degradation of methylene blue with Zn2SnO4 suggested that the difference in photocatalytic activities of the samples was mainly attributed to defects which can act as recombination centers for photoinduced electrons and holes, reducing the total photocatalytic activity; OH . radicals were the dominant photooxidants.

引用

页码：1198 / 1204

页数：7