Journal
MATERIALS RESEARCH BULLETIN
Volume 97, Issue -, Pages 158-168Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2017.09.004
Keywords
ZnIn2S4/CQDs; Nanoflowers; Broad spectrum; NIR light photocatalytic; Tetracycline hydrochloride
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Funding
- National Basic Research Program of China [21576214, 21777062]
- Research Foundation for Advanced Talents of Jiangsu University [16JDG022]
- Natural Science Foundation of Jiangsu Province [BK20160495]
- Opening Project of Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province [HPK201605]
- Opening Project of Hunan Key Laboratory of Mineral Materials and Application [MMA201704]
- Huaian Science and Technology project [HAS2015002]
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In this study, a simple in-situ hydrothermal method was demonstrated for fabricating a novel photocatalyst with broad spectrum response based on carbon quantum dots doped ZnIn2S4 nanotlowers(ZIS/CQDs). Compared with pure ZnIn2S4, ZIS/CQDs samples with broader sunlight spectrum responses and higher photostabilities exhibited enhanced photocatalytic performances towards photodegradation of tetracycline hydrochloride (TCH) under UV, visible, NIR light and simulated sunlight irradiation. ZIS/CQDs samples all presented higher NIR light activities while pure ZnIn2S4 showed no such ability. The up-converted photoluminescence property of CQDs in composites played an important role in enhancing NIR light response and photodegradation of TCH. Further, ZIS/CQDs sample also possessed the high visible-light photocatalytic activity to degrade rhodamine B (RhB) and methyl orange (MO). A possible mechanism of CQDs on the enhanced photocatalytic activity of ZIS/CQDs sample was also proposed.
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