Oxygen vacancy-induced efficient photocatalytic antifouling activities of Bi5O7I microspheres on marine concrete

doi:10.1016/j.jpcs.2023.111539

	Oxygen vacancy-induced efficient photocatalytic antifouling activities of Bi5O7I microspheres on marine concrete
	Wang, Wencheng 1,6; Xia, Baohao 1,2,3,4,6; Zhang, Yu2,4,6 ; Wang, Nan2,4,5,6 ; Yang, Zhengxian 1,6; Zhai, Xiaofan2,3,4,6,7,8 ; Duan, Jizhou 2,4,6,7,8; Liu, Qiang 6; Ju, Peng3,6
	2023-10-01
发表期刊	JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
ISSN	0022-3697
卷号	181 页码:13
通讯作者	Yang, Zhengxian(zxyang@fzu.edu.cn) ; Zhai, Xiaofan(zhaixf@qdio.ac.cn) ; Ju, Peng(jupeng@fio.org.cn)
摘要	Bi5O7I photocatalysts are considered potentially excellent marine antifouling materials. However, the photo catalytic properties differ for Bi5O7I photocatalysts with various morphologies, and the photocatalytic mechanisms involved remain unclear. In addition, powdered Bi5O7I photocatalysts are difficult to work with in an exact manner on marine structure surfaces, such as concretes, in actual marine environments. Thus, in this study, Bi5O7I photocatalysts with various morphologies comprising nanosheets, nanorods, nanoflowers, and micro spheres (MS) were successfully synthesized. Among these Bi5O7I photocatalysts, the highly regular Bi5O7I MS (Bi5O7I-MS) were found to have the highest photocatalytic properties in both the degradation of Rhodamine B and inactivation of bacteria. This strong photocatalytic ability can be attributed to the high specific surface area and rich oxygen vacancies (OVs) in Bi5O7I-MS. The possible photocatalytic mechanism involves h+ playing the major role, with & BULL;OH and & BULL;O2  partially contributing to the photocatalytic process. OVs also promoted the photocatalytic properties of Bi5O7I-MS by trapping photoinduced electrons to accelerate the photocatalytic process. Furthermore, Bi5O7I-MS photocatalysts were successfully grown in situ on cement mortar surfaces, where they showed extremely high antifouling performance, with hardly any living bacteria attached. These findings clarify the morphology-dependent mechanism associated with Bi5O7I photocatalysts, as well as facilitating the growth of photocatalysts in situ on cement mortar for applications in marine antifouling.
关键词	Antifouling Oxygen vacancies Photocatalysis Concrete
DOI	10.1016/j.jpcs.2023.111539
收录类别	SCI
语种	英语
资助项目	Hainan Provincial Joint Project of Sanya Yazhou Bay Science and Technology City[2021CXLH0005] ; National Key Research and Development Program of China[2022YFC3106004] ; Shandong Provincial Natural Science Foundation of China[ZR2022MD023] ; Young Elite Scientists Sponsorship Program by CAST[YESS20210201] ; Basic Scientific Fund for National Public Research Institutes of China[2019Y03] ; Basic Scientific Fund for National Public Research Institutes of China[2020S02] ; Fujian Ocean and Fishery Bureau[FJHJF-L-2022-19] ; Natural Science Foundation of Fujian Province[2021J05126] ; S amp; T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (QNLM)[2021WHZZB2303] ; Hainan Province Science and Technology Special Fund[ZDYF2021GXJS210] ; Key Research and Development Program of Shandong Province (Major Scientific and Technological Innovation Project)[2019JZZY020711]
WOS研究方向	Chemistry ; Physics
WOS类目	Chemistry, Multidisciplinary ; Physics, Condensed Matter
WOS记录号	WOS:001040482300001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS关键词	ONE-POT SYNTHESIS ; N HETEROJUNCTION ; Z-SCHEME ; PERFORMANCE ; BIOCL ; PHOTODEGRADATION ; CONSTRUCTION ; DEGRADATION ; FABRICATION ; COMPOSITE
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/182611
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Yang, Zhengxian; Zhai, Xiaofan; Ju, Peng
作者单位	1.Fuzhou Univ, Coll Civil Engn, Engn Res Ctr Adv Civil Engn Mat, Fuzhou 350108, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China 3.Minist Nat Resources, Inst Oceanog 1, Marine Bioresource & Environm Res Ctr, Key Lab Marine Ecoenvironm Sci & Technol, 6 Xianxialing Rd, Qingdao 266061, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Peoples R China 5.Qilu Univ Technol, Shandong Acad Sci, Sch Mat Sci & Engn, Jinan 250353, Peoples R China 6.Sanya Inst Ocean Ecoenvironm Engn, Zhenzhou Rd, Sanya 572000, Peoples R China 7.Guangxi Acad Sci, Inst Marine Corros Protect, 98 Daling Rd, Nanning 530007, Peoples R China 8.Rizhao Kingda Shipbuilding Heavy Ind Co Ltd, Rizhao 276800, Peoples R China
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Wang, Wencheng,Xia, Baohao,Zhang, Yu,et al. Oxygen vacancy-induced efficient photocatalytic antifouling activities of Bi5O7I microspheres on marine concrete[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,2023,181:13.
APA	Wang, Wencheng.,Xia, Baohao.,Zhang, Yu.,Wang, Nan.,Yang, Zhengxian.,...&Ju, Peng.(2023).Oxygen vacancy-induced efficient photocatalytic antifouling activities of Bi5O7I microspheres on marine concrete.JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,181,13.
MLA	Wang, Wencheng,et al."Oxygen vacancy-induced efficient photocatalytic antifouling activities of Bi5O7I microspheres on marine concrete".JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 181(2023):13.

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