无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2020, Vol. 52 ›› Issue (8): 93-97.doi: 10.11962/1006-4990.2019-0479

• 催化材料 • 上一篇    下一篇

钒掺杂二氧化钛光催化活性研究

张树立1(),徐旭鹏1,陈书锐1,刘黔蜀2,王本菊1   

  1. 1.攀枝花学院,四川攀枝花 617000
    2.攀枝花学院大学科技园
  • 收稿日期:2020-02-16 出版日期:2020-08-10 发布日期:2020-08-12
  • 作者简介:张树立(1974— ),男,副教授,研究方向为钒钛资源综合利用;E-mail: 873532342@qq.com
  • 基金资助:
    射频等离子体生产纳米金红石型二氧化钛工艺技术研究(2019YJ0685)

Photocatalytic activity of vanadium doped titanium dioxide

Zhang Shuli1(),Xu Xupeng1,Chen Shurui1,Liu Qianshu2,Wang Benju1   

  1. 1. Panzhihua College,Panzhihua 617000,China
    2. College of Science and Technology,Panzhihua University
  • Received:2020-02-16 Online:2020-08-10 Published:2020-08-12

摘要:

二氧化钛凭借优异的光催化性能,越来越受到人们的广泛关注和重视。以钛酸四丁酯为原料,利用水解-水热-干燥/煅烧工艺制备得到未掺杂TiO2光催化剂和掺钒TiO2光催化剂,利用其对甲基橙溶液的降解率做了比较分析。结果表明,以钛酸四丁酯为原料,采用溶胶-凝胶法制备钒掺杂TiO2光催化剂是可行的。制备V/TiO2产品的最佳工艺条件:钒钛质量比为6∶100、水热温度为160 ℃、水热时间为12 h,120 ℃下干燥14 h。紫外光照射条件下,甲基橙光催化降解效率达到99.10%,降解时间小于45 min。

关键词: 二氧化钛, 光催化, 掺杂, 降解率

Abstract:

TiO2 has attracted more and more attention due to its excellent photocatalytic performance. Undoped TiO2 photocatalyst and vanadium-doped TiO2 photocatalyst were prepared by hydrolysis-hydrothermal-drying/calcination process using tetrabutyl titanate as raw material.The degradation rate of methyl orange solution was compared and analyzed.The results showed that it was feasible to prepare vanadium-doped TiO2 photocatalyst by sol-gel method using tetrabutyl titanate as raw material.The optimal process conditions for V/TiO2 products was as follows:vanadium-titanium mass ratio was 6∶100,hydrothermal temperature was 160 ℃,hydrothermal time was 12 h and drying at 120 ℃ for 14 h.Under ultraviolet light irradiation,the photocatalytic degradation efficiency of methyl orange reached 99.10%,and the degradation time was less than 45 min.

Key words: titaniumdioxide, photocatalysis, doping, degradation rate

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