应用化学 ›› 2024, Vol. 41 ›› Issue (9): 1324-1332.DOI: 10.19894/j.issn.1000-0518.240090

• 研究论文 • 上一篇    下一篇

RuO2/TiO2复合催化剂制备及光催化性能

贾贞健1,2(), 韩曦3, 张杰3   

  1. 1.哈尔滨工业大学能源科学与工程学院,哈尔滨 150001
    2.哈尔滨工业大学郑州研究院,先进能源动力技术研究所,郑州 450003
    3.广西大学化学化工学院,南宁 530004
  • 收稿日期:2024-03-22 接受日期:2024-07-16 出版日期:2024-09-01 发布日期:2024-10-09
  • 通讯作者: 贾贞健
  • 基金资助:
    国家自然科学基金(52106137)

Preparation and Photocatalytic Performance of Ruthenium Dioxide/Titanium Dioxide Composite Catalyst

Zhen-jian JIA1,2(), Xi HAN3, Jie ZHANG3   

  1. 1.School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150001,China
    2.Institute of Advanced Energy and Power Technology,Zhengzhou Research Institute of Harbin Institute of Technology,Zhengzhou 450003,China
    3.College of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China
  • Received:2024-03-22 Accepted:2024-07-16 Published:2024-09-01 Online:2024-10-09
  • Contact: Zhen-jian JIA
  • About author:jiazhenjian2023@163.com
  • Supported by:
    the National Natural Science Foundation of China(52106137)

摘要:

通过湿浸法结合热处理工艺制备了RuO2/TiO2复合催化剂,利用X射线衍射仪(XRD)和扫描电子显微镜(SEM)对其结构进行了表征, 并对RuO2用量、光照强度、甲基橙溶液的pH值和通气量等不同条件下该复合催化剂的光催化效果进行了分析。 结果显示,RuO?的掺杂并未显著改变TiO2的晶面结构,随着RuO2质量分数的增加,样品颗粒尺寸先增大后减小,在添加质量分数为0.15%时达到较为理想的平衡点,光照强度为4.23 mW/cm2时,降解甲基橙的降解率达65%。 同时甲基橙溶液为酸性,煅烧温度为550 ℃时,光催化效果更好。 通气量并不是影响光催化效果的关键因素。 RuO?/TiO?复合催化剂的制备和应用提供有价值的参考。

关键词: RuO2, TiO2, 复合催化剂, 光催化性, 降解率, 甲基橙

Abstract:

The RuO2/TiO2 composite catalyst was prepared by wet immersion method combined with heat treatment process, and its structure was characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Analyze the photocatalytic effect of the composite catalyst under different conditions such as the amount of RuO2 solution, light intensity, pH of methyl orange solution, and ventilation rate. The results showed that the doping of RuO2 did not significantly change the crystal plane structure of TiO2. As the mass fraction of RuO2 increased, the sample particle size first increased and then decreased, reaching an ideal equilibrium point at a 0.15% addition amount. When the amount of RuO2 solution is 0.15% mass fraction and the light intensity is 4.23 mW/cm2, the degradation rate of methyl orange reaches 65%, indicating a high photocatalytic effect. When the methyl orange solution is acidic, a more ideal photocatalytic effect can be achieved. When preparing the composite catalyst, the photocatalytic effect is better when the calcination temperature is 550 ℃. However, ventilation is not the key factor affecting the photocatalytic effect. It aims to provide valuable references for the preparation and application of RuO2/TiO2 composite catalysts.

Key words: Ruthenium dioxide, Titanium dioxide, Composite catalyst, Photocatalysis, Degradation rate, Methyl orange

中图分类号: