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High performance long-afterglow phosphor-based ZnIn2S4/Sr2MgSi2O7: Eu2+,Dy3+photocatalyst capable of dark state long-term application for photocatalytic sterilization

文献类型：期刊论文

作者Zhang, Hui1,2; Sun, Mengmeng2; Zhang, Jie2; Zuo, Zeyu1,2; Zhang, Ruiyong2; Duan, Jizhou2; Hou, Baorong2
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2025-01-05
卷号1010页码:13
关键词Marine sterilization materials Photocatalytic sterilization Sustained sterilization Long afterglow luminescent materials S -scheme heterojunction
ISSN号0925-8388
DOI10.1016/j.jallcom.2024.176711
通讯作者Zhang, Jie(zhangjie@qdio.ac.cn) ; Zhang, Ruiyong(ruiyong.zhang@qdio.ac.cn)
英文摘要Eco-friendly photocatalytic sterilization utilizing solar energy via the generation of reactive radicals excited by light irradiation devastating bacterial cells and mineralizing organic pollutants effectively exhibits vast application potential in marine biofouling prevention due to the abundant solar energy available in the ocean. Focusing on the issue of the cessation of photocatalytic processes in the absence of light, in this study, we selected the long afterglow material Sr2MgSi2O7:Eu2+,Dy3+ (SMSO), which exhibits persistent sky-blue luminescence after brief illumination, as the substrate for in situ compositing with the visible-light-responsive ZnIn2S4 (ZIS). The emission spectrum of SMSO partially overlaps with the absorption spectrum of ZIS, and their energy bands were well-matched. Consequently, the ZIS/SMSO=1:0.5 (mass ratio) exhibited the synergistic degradation and bactericidal performance under both light and dark conditions. ZIS/SMSO=1:0.5 exhibited the degradation rate of methyl orange (MO) of 72.4 % when exposed to 5 minutes of simulated sunlight, 2.6-fold increase compared to ZIS, and especially, it exhibited the sustained degradation rate of 38.7 % after 5 h in darkness. Besides, ZIS/ SMSO=1:0.5 exhibited the bactericidal rate of 28.9 % under simulated visible light of 1 h, which was 2.9 and 2.5 times the bactericidal rate of ZIS and SMSO, respectively; and especially, after 6 h in darkness, it reached 64.4 %, which was 2.8 and 1.9 times the bactericidal rate of ZIS and SMSO, respectively. The Electron Spin Resonance (ESR) test validated the notably higher & sdot;OH and & sdot;O2- signals of the ZIS/SMSO=1:0.5 complex than those of individual components when exposed to light, and the sustained existence of & sdot;OH signal even in darkness, revealing that the continuously generation of active free radicals even in the absence of light due to that the SMSO can continuously excite the ZIS. Combining with the in situ XPS analysis and the density functional theory calculations, an S-scheme heterojunction between ZIS and SMSO is formed which contribute to the higher yield of & sdot;OH for ZIS/SMSO=1:0.5 under both light and dark conditions. And the calculation of the adsorption energies of ZIS and SMSO for O2 and OH- in the composite revealed that the ZIS component is more favorable for adsorbing O2, while the SMSO component is more favorable for adsorbing OH-. These analyses manifested the S-scheme electron transfer of the system. Finally, the ZIS/SMSO=1:0.5 composite of environmentally friendly broadspectral-responsive ternary metal sulfides with the long afterglow materials is capable of a sustained degradation and bactericidal effect, not only under light irradiation but also in the subsequent darkness. It offers valuable insights into photocatalytic materials that overcome light availability limitations for preventing marine biofouling.
WOS关键词PERSISTENT LUMINESCENCE ; WATER DISINFECTION ; METHYL-ORANGE ; PHOTOLUMINESCENCE ; HETEROJUNCTION ; EFFICIENCY ; EMISSION ; UV
资助项目Major Basic Research Project of Natural Science Foundation of Shandong Province, China[ZR2023ZD31] ; National Natural Science Foundation of China[42076043] ; National Natural Science Foundation of China[42176049] ; Shandong Provincial Natural Science Foundation, China[ZR2022YQ39] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[ZDBS-LY-DQC025]
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:001341103100001
出版者ELSEVIER SCIENCE SA
源URL[http://ir.qdio.ac.cn/handle/337002/199501]  
专题海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者Zhang, Jie; Zhang, Ruiyong
作者单位1.Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Adv Marine Mat, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Hui,Sun, Mengmeng,Zhang, Jie,et al. High performance long-afterglow phosphor-based ZnIn2S4/Sr2MgSi2O7: Eu2+,Dy3+photocatalyst capable of dark state long-term application for photocatalytic sterilization[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2025,1010:13.
APA Zhang, Hui.,Sun, Mengmeng.,Zhang, Jie.,Zuo, Zeyu.,Zhang, Ruiyong.,...&Hou, Baorong.(2025).High performance long-afterglow phosphor-based ZnIn2S4/Sr2MgSi2O7: Eu2+,Dy3+photocatalyst capable of dark state long-term application for photocatalytic sterilization.JOURNAL OF ALLOYS AND COMPOUNDS,1010,13.
MLA Zhang, Hui,et al."High performance long-afterglow phosphor-based ZnIn2S4/Sr2MgSi2O7: Eu2+,Dy3+photocatalyst capable of dark state long-term application for photocatalytic sterilization".JOURNAL OF ALLOYS AND COMPOUNDS 1010(2025):13.

入库方式： OAI收割

来源：海洋研究所

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