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| Preparation of Hierarchical CdS QDs/BiOCl Microsphere with Enhanced Photocatalytic Activity for Organic Pollutant Elimination |
| Author Name | Affiliation | E-mail | | PAN Jin-Bo | State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China | | | LIU Jian-Jun | State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China | jjliu717@126.com | | MA He-Cheng | State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China | | | Usman Ali Khan | State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China | | | ZUO Sheng-Li | State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China | | | YU Ying-Chun | State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China | | | LI Bao-Shan | State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China | |
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| Abstract: Hierarchical CdS QDs/BiOCl microsphere was prepared via a facile liquid deposition process. XRD, SEM, TEM, HRTEM, XPS, EDS, UV-Vis DRS, PL were used to characterize the phase composition, morphology, composition, light absorption and photoelectric property. Rhodamine (RhB) and phenol were used as the model pollutant to evaluate the photocatalytic performance of CdS QDs/BiOCl under visible and UV light, respectively. The tests indicate that the BiOCl microsphere with size of 5.5 μm is composed of massive nanosheets. Besides, CdS QDs with size of 10~20 nm distributed uniformly on the surface of BiOCl nanosheets. Compared to pure BiOCl and CdS QDs/BiOCl, CdS QDs/BiOCl-3% exhibits the best photocatalytic activity, which is over 2.6 and 5.3 times as high as pure BiOCl for RhB and phenol photodegradation rate. The enhanced photocatalytic performance of the CdS QDs/BiOCl composites should be ascribed to the hierarchical structure of BiOCl which prevented the nanosheets from piling up, enabling CdS QDs to disperse uniformly on the surface of BiOCl nanosheets, moreover, the improved visible light absorption and the high migration efficiency of the photogenerated electron-holes due to the matched band gap and the widespread heterostructure between CdS QDs and BiOCl. |
| Keywords: liquid deposition process BiOCl CdS QDs hierarchical structure photocatalytic activity |
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| PAN Jin-Bo,LIU Jian-Jun,MA He-Cheng,Usman Ali Khan,ZUO Sheng-Li,YU Ying-Chun,LI Bao-Shan.Preparation of Hierarchical CdS QDs/BiOCl Microsphere with Enhanced Photocatalytic Activity for Organic Pollutant Elimination[J].Chinese Journal of Inorganic Chemistry,2018,34(8):1421-1429. |
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