石油化工高等学校学报 ›› 2022, Vol. 35 ›› Issue (4): 46-51.DOI: 10.3969/j.issn.1006-396X.2022.04.007

• 催化剂及催化材料 • 上一篇    下一篇

BaTiO3⁃TiO2复合体的软化学制备及其性能研究

张若男(), 何仕婕, 王晓蓉, 王芳芳, 陈常东()   

  1. 辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001
  • 收稿日期:2022-04-11 修回日期:2022-07-29 出版日期:2022-08-25 发布日期:2022-09-27
  • 通讯作者: 陈常东
  • 作者简介:张若男(1997⁃),女,硕士研究生,从事光(电)催化材料方面的研究;E⁃mail:1611139786@qq.com
  • 基金资助:
    教育部“春晖计划”合作科研项目(2020703?8);国家留学基金委公派访学学者面上项目(CSC202008210025);辽宁省教育厅科学技术研究项目(L2020009);辽宁石油化工大学博士科研启动基金项目(2016xJJ?076)

Study on Soft Chemistry Preparation and Performance of BaTiO3⁃TiO2 Composites

Ruonan Zhang(), Shijie He, Xiaorong Wang, Fangfang Wang, Changdong Chen()   

  1. School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
  • Received:2022-04-11 Revised:2022-07-29 Published:2022-08-25 Online:2022-09-27
  • Contact: Changdong Chen

摘要:

以八水合氢氧化钡(Ba(OH)2·8H2O)、二氧化钛(TiO2)为原料,采用软化学水热的制备方法,在120 ℃的温度下,通过调控不同n(Ba)/n(Ti)合成了BaTiO3?TiO2复合体。通过X射线衍射(XRD)、扫描电镜(SEM)、紫外?可见吸收光谱(UV?Vis)等测试手段,研究了不同n(Ba)/n(Ti)条件下所得到的复合体的结构,并考察了复合体对模拟降解污染物——罗丹明B(RhB)的降解效果。结果表明,当n(Ba)/n(Ti)=0.50时,BaTiO3?TiO2复合体对罗丹明B的降解率最大,催化效果最好;同时,n(Ba)/n(Ti)=0.50时,所形成BaTiO3?TiO2复合体的活性位点最多,有助于光催化反应的进行。

关键词: BaTiO3?TiO2, 软化学, 光催化, 异质结构

Abstract:

The BaTiO3?TiO2 composites were prepared by using hydrate barium hydroxide (Ba(OH)2·8H2O) and titanium dioxide (TiO2) as raw materials with soft chemical hydrothermal method at 120 ℃ and different Ba/Ti molar ratios.The structure of the prepared composites with different Ba/Ti molar ratios was analyzed by X?ray diffraction (XRD),scanning electron microscopy (SEM),and UV?visible absorption spectroscopy (UV?Vis),the degradation effect of the complex on the simulated degradation pollutant,rhodamine B (RhB) was investigated.The results indicate that the BaTiO3?TiO2 composites obtained at a Ba/Ti molar ratio of 0.50 have an excellent catalytic effect for the degradation of rhodamine B (RhB) during the simulation of dye wastewater degradation.Meanwhile,more active sites formed at the Ba/Ti molar ratio of 0.50, which facilitated the photocatalytic reaction.

Key words: BaTiO3?TiO2, Soft chemical, Photocatalyst, Heterostructure

中图分类号: 

引用本文

张若男, 何仕婕, 王晓蓉, 王芳芳, 陈常东. BaTiO3⁃TiO2复合体的软化学制备及其性能研究[J]. 石油化工高等学校学报, 2022, 35(4): 46-51.

Ruonan Zhang, Shijie He, Xiaorong Wang, Fangfang Wang, Changdong Chen. Study on Soft Chemistry Preparation and Performance of BaTiO3⁃TiO2 Composites[J]. Journal of Petrochemical Universities, 2022, 35(4): 46-51.

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