Fabrication of In2O3/Co3O4-palygorskite composites by the pyrolysis of In/Co-MOFs for efficient degradation of methylene blue and tetracycline

作者：Xu, Jixiang; Gao, Jianyang; Liu, Yong; Li, Qingyun; Wang, Lei^*

来源：Materials Research Bulletin, 2017, 91: 1-8.

DOI：10.1016/j.materresbull.2017.03.018

• In2O3/Co3O4@PAL
• Co/In-MOF
• Palygorskite
• Photocatalysis
• Methyl blue
• Tetracycline

A facile method for fabrication of In2O3/Co3O4@palygorskite composites from a Co/In-based metal organic framework (MOF) was reported. First, Co/In-MOFs hybridized with palygorskite (PAL) was prepared via a one-pot solvothermal method. Second, In2O3/Co3O4@PAL composites were obtained by pyrolysis of In2O3/Co3O4@PAL in air. It was found that the In2O3/Co3O4@PAL composite exhibited higher photocatalytic activities than In2O3/Co3O4 to the degradation of MB and TC under visible-light irradiation. About 99% of MB (within 40 min) and 80% of TC (within 120 min) were degraded using In2O3/Co3O4@5.0% PAL as catalyst. It was supposed that the efficient adsorption of MB and TC, and electrostatic interactions between electron-hole and PAL were responsible for such improvement. The photocatalytic degradation mechanisms of MB and TC on the In2O3/Co3O4@PAL were investigated. This work shows that hybridization MOFs with PAL could enhance the photocatalytic properties of MOFs-derived metal oxides for water treatment.

• 出版日期2017-7
• 单位青岛科技大学