Chemical Research in Chinese Universities ›› 2017, Vol. 33 ›› Issue (3): 436-441.doi: 10.1007/s40242-017-6377-6

• Articles • Previous Articles     Next Articles

Synthesis of CdS/m-TiO2 Mesoporous Spheres and Their Application in Photocatalytic Degradation of Rhodamine B Under Visible Light

CUI Shu1,2, LI Xuesong1, LI Yanjuan1, ZHAO Haixin1, WANG Yuanyuan1, LI Nan1, LI Xiaotian1, LI Guodong3   

  1. 1. Key Laboratory of Automobile Materials, Ministry of Education, College of Material Science and Engineering, Jilin University, Changchun 130012, P. R. China;
    2. School of Physics, Tonghua Normal University, Tonghua 134002, P. R. China;
    3. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
  • Received:2016-09-12 Revised:2016-12-26 Online:2017-06-01 Published:2017-05-26
  • Contact: LI Nan,E-mail:lin@jlu.edu.cn;LI Xiaotian,E-mail:xiaotianli@jlu.edu.cn E-mail:lin@jlu.edu.cn;xiaotianli@jlu.edu.cn
  • Supported by:

    Supported the National Natural Science Foundation of China(Nos.21076094 and 21673097).

Abstract:

CdS/m-TiO2 heteroarchitecture with CdS nanocrystals loaded on mesoporous TiO2(m-TiO2) spheres was successfully synthesized via sol-gel method followed by solvothermal treatment. The material with uniform diameter of ca. 750 nm possesses regular mesoporous structure and large specific surface area of 100.5 m2/g. When used to photodegradate Rhodamine B(RB) under visible light, the CdS/m-TiO2 heteroarchitecture exhibits improved photocatalytic performance in comparison with pure m-TiO2 or CdS. The excellent photocatalytic activity is closely related to the facilitated separation of electron-hole pairs derived from the CdS/m-TiO2 heterojunction and mesoporous structure with high specific surface area and adequately exposed active sites.

Key words: Cadmium sulfide, Titanium dioxide, Heteroarchitecture, Mesoporous material, Photocatalysis, Visible light