Defect Rich UiO-66 with Enhanced Adsorption and Photosensitized Reduction of Cr(VI) under Visible Light

Photosensitization is a promising way to make UiO-66 visible light responsive. In this work, zirconium (Zr) precursors and synthetic methods (solvent-assisted or nonsolvent-assisted) were found to significantly affect the electric charge and the defect sites of UiO-66. UiO-66 with enhanced adsorptio...

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Published inIndustrial & engineering chemistry research Vol. 58; no. 47; pp. 21562 - 21568
Main Authors Chen, Qian, Feng, Yi, Tian, Rongrong, Chen, Jinghang, Wang, Anqing, Yao, Jianfeng
Format Journal Article
LanguageEnglish
Published American Chemical Society 27.11.2019
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Summary:Photosensitization is a promising way to make UiO-66 visible light responsive. In this work, zirconium (Zr) precursors and synthetic methods (solvent-assisted or nonsolvent-assisted) were found to significantly affect the electric charge and the defect sites of UiO-66. UiO-66 with enhanced adsorption and photosensitized photocatalytic ability was then obtained. When ZrOCl2·8H2O was applied as Zr-precursor in a nonsolvent method, defect rich UiO-66 (UiO–OCl–N) was achieved with higher Cr­(VI) adsorbing ability and improved photosensitized photocatalytic ability. Moreover, with the coexistence of Rhodamine B in Cr­(VI) solution, photocatalytic performance of UiO-66 can be further enhanced.
ISSN:0888-5885
1520-5045
DOI:10.1021/acs.iecr.9b05464