Visible-light-driven dye degradation using a floriated ZnIn2S4/AgIn5S8 heteromicrosphere catalyst
Song, JLQ; Jiang, TT; Ji, GW; Zhang, WT; Cheng, XY; Weng, W; Zhu, LX; Xu, XL; Song, JLQ (reprint author), Univ Sci & Technol China, Chinese Acad Sci, Key Lab Strongly Coupled Quantum Matter Phys, Hefei 230026, Anhui, Peoples R China.
2015
发表期刊RSC ADVANCES
ISSN2046-2069
卷号5期号:116页码:95943—95952
文章类型期刊文献
摘要We report the synthesis of ZnIn2S4/AgIn5S8 (ZIS/AIS) heteromicrospheres with tailorable composition and controllable band gap via partial cation exchange for the first time. Detailed studies of the as-prepared samples were carried out using SEM, TEM, STEM-EDS, XRD and layer-by-layer depth XPS analysis. Based on these results, possible cation exchange was proposed, and a critical concentration of Ag+ in the crystals was identified, below which cation exchange cannot occur. Besides, an enhanced photodegradation mechanism was discussed by analyzing the UV-vis-NIR reflectance spectra and the band structure, illustrating that an appropriate thickness of the AIS layer is beneficial to the generation of active species thus favoring the degradation reaction. Further application of dye degradation demonstrated a remarkable photodegradation rate up to 99.2%. Our results shed light on how the cation exchange occurs between ternary and binary crystals, which may open a new avenue to the field for synthesizing materials at the micro-scale.
关键词Solid-solution Photocatalysts Partial Cation-exchange Ag2s Quantum Dots In-s Znin2s4 Microspheres Aqueous Synthesis Facile Synthesis H-2 Evolution Nanocrystals Nanoparticles
语种英语
WOS记录号WOS:000364907300065
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/25095
专题中科院上海应用物理研究所2011-2018年
通讯作者Song, JLQ (reprint author), Univ Sci & Technol China, Chinese Acad Sci, Key Lab Strongly Coupled Quantum Matter Phys, Hefei 230026, Anhui, Peoples R China.
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Song, JLQ,Jiang, TT,Ji, GW,et al. Visible-light-driven dye degradation using a floriated ZnIn2S4/AgIn5S8 heteromicrosphere catalyst[J]. RSC ADVANCES,2015,5(116):95943—95952.
APA Song, JLQ.,Jiang, TT.,Ji, GW.,Zhang, WT.,Cheng, XY.,...&Song, JLQ .(2015).Visible-light-driven dye degradation using a floriated ZnIn2S4/AgIn5S8 heteromicrosphere catalyst.RSC ADVANCES,5(116),95943—95952.
MLA Song, JLQ,et al."Visible-light-driven dye degradation using a floriated ZnIn2S4/AgIn5S8 heteromicrosphere catalyst".RSC ADVANCES 5.116(2015):95943—95952.
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