个人信息
教师姓名：张永才
教师拼音名称：ZYC
电子邮箱：
入职时间：2003-06-01
所在单位：化学化工学院
职务：professor
学历：博士研究生毕业
办公地点：N111, New Chemistry Building, Yangzhou University, No.180 Siwangting Road, Yangzhou City
联系方式：zhangyc@yzu.edu.cn
学位：博士
职称：副高级
在职信息：在岗
硕士生导师
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所属院系： 化学化工学院
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学科：无机化学
其他联系方式
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论文成果
HNO3-involved one-step low temperature solvothermal synthesis of N-doped TiO2 nanocrystals for efficient photocatalytic reduction of Cr(VI) in water
发布时间：2021-04-09 点击次数：
DOI码：10.1016/j.apcatb.2013.05.023
所属单位：化学化工学院
教研室：无机教研室
发表刊物：Applied Catalysis B: Environmental
关键字：N-doped TiO2；Nitric acid；Solvothermal；Photocatalytic reduction；Hexavalent chromium
摘要：A one-step low temperature (180 °C) solvothermal route, which utilized HNO3 as the nitrogen source, was proposed for the synthesis of nanocrystalline N-doped TiO2 (denoted as TiO2-HNO3). The structure, composition, BET specific surface area and optical properties of TiO2-HNO3 were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy, high resolution transmission electron microscopy, N2 adsorption–desorption isotherms and UV–vis diffuse reflectance spectroscopy. The photocatalytic properties of TiO2-HNO3 were tested for the reduction of Cr(VI) in water under both UV and visible light (λ > 420 nm) irradiation, and compared with those of TiO2-NH3·H2O (which was solvothermally synthesized using NH3·H2O as the nitrogen source) and TiO2 P25. The photocatalytic results demonstrated that TiO2-HNO3 possessed much higher photocatalytic activity than TiO2-NH3·H2O and TiO2 P25 in the reduction of aqueous Cr(VI) under both UV and visible light (λ > 420 nm) irradiation, and the dosage of TiO2-HNO3 and the initial concentration of Cr(VI) aqueous solution had significant effects on the efficiency of Cr(VI) reduction. Besides, Cr(VI) was reduced to Cr(III) after the TiO2-HNO3-mediated photocatalytic reactions. The present work suggests that HNO3 is a promising nitrogen source for low temperature solvothermal synthesis of nanocrystalline N-doped TiO2, which can be applied as a visible light-activated photocatalyst in efficient utilization of solar energy for treating Cr(VI) wastewater.
合写作者：杨敏,张歌珊,Dionysiou
第一作者：张永才
论文类型：基础研究
论文编号：https://doi.org/10.1016/j.apcatb.2013.05.023
学科门类：理学
一级学科：化学
文献类型：Research Atricle
卷号：142-143
页面范围：249-258
ISSN号：0926-3373
是否译文：否
发表时间：2013-10-30
收录刊物：SCI
