文献类型：期刊文献

英文题名：In situ co-crystallization synthesis of the direct Z-scheme Bi5O7I/Bi2SiO5 heterojunction for enhanced photocatalytic rhodamine B and ciprofloxacin degradation

作者：Zhang, Mingliang[1,2];Duo, Fangfang[2];Wang, Chubei[2];Zhou, Jianwei[2,3];Chu, Liangliang[2];Lan, Jihong[3];Li, Junwei[3];Li, Lixiang[1,4]

第一作者：张明亮;Zhang, Mingliang

通讯作者：Li, LX[1]

机构：[1]Univ Sci & Technol Liaoning, Sch Chem Engn, Key Lab Energy Mat & Electrochem Liaoning Prov, 189 Qianshanzhong Rd, Anshan 114051, Liaoning, Peoples R China;[2]Xinxiang Univ, Henan Photoelectrocatalyt Mat & Micronano Applicat, Xinxiang 453003, Henan, Peoples R China;[3]Xinxiang Univ, Coll Chem & Mat Engn, Xinxiang 453003, Peoples R China;[4]Hainan Univ, Sch Chem Engn & Technol, State Key Lab Marine Resource Utilizat South China, Hainan Prov Key Lab Fine Chem, Haikou 570228, Peoples R China

第一机构：Univ Sci & Technol Liaoning, Sch Chem Engn, Key Lab Energy Mat & Electrochem Liaoning Prov, 189 Qianshanzhong Rd, Anshan 114051, Liaoning, Peoples R China

通讯机构：[1]corresponding author), Univ Sci & Technol Liaoning, Sch Chem Engn, Key Lab Energy Mat & Electrochem Liaoning Prov, 189 Qianshanzhong Rd, Anshan 114051, Liaoning, Peoples R China.

年份：2024

卷号：159

外文期刊名：INORGANIC CHEMISTRY COMMUNICATIONS

收录：;Scopus(收录号：2-s2.0-85176439612);WOS:【SCI-EXPANDED(收录号:WOS:001114609200001)】；

基金：This work is supported by National Natural Science Foundation of China (NSFC, No. 51872131, 51672118 and 51972156) , the Distinguished Professor Project of Education Department of Liaoning are acknowledged, the Project of Science and Technology of the Henan Province (192102310496) , the Science and Technology Department of Henan Province (232102230096) and Key Scientific Research Projects of Institutions of Higher Learning in Henan Province (22B150014) , Xinxiang University Leading Academic Discipline Project (No. 3922210001, 108220223002) , the Xinxiang University Innovation Projects (No. 20210001) .r of Institutions of Higher Learning in Henan Province (22B150014) , Xinxiang University Leading Academic Discipline Project (No. 3922210001, 108220223002) , the Xinxiang University Innovation Projects (No. 20210001) .

语种：英文

外文关键词：Anion exchange; Z-scheme; Photocatalytic

摘要：Semiconductor photocatalysis has driven considerable interests for its desirable potential to tackle the worldwide energy shortage and environmental pollution. In this paper, a novel Bi5O7I/Bi2SiO5 Z-scheme heterojunction photocatalyst was in situ synthesized via a co-crystallization process and partial anion exchange strategy. The XRD and FT-IR pattern validated the successful preparation of the heterojunction. The optimal Bi5O7I/Bi2SiO5 heterojunction displayed an excellent photocatalytic activity towards the ciprofloxacin under the simulated solar light, and the rate constant (0.46021 h-1) was 2 and 7.8 times higher than that of pure BiOI (0.22967 h-1) and Bi2SiO5 (0.05877 h-1). Similarly, the degradation efficiency on rhodamine B (RhB) reached 94%, which was much higher than that of the single photocatalysis. The enhanced photocatalytic performance of the heterojunction photocatalyst could be attributed to the formation of the direct Z-scheme heterojunction between the Bi5O7I and Bi2SiO5, which was favorable for retarding the recombination of photoinduced electron-hole pairs. Moreover, the bacteriostatic activity testing illustrated the toxicity of drug solutions decreased sharply after the photocatalytic degradation with the Bi5O7I/Bi2SiO5-3. The ESR characterization analysis and the free radical trapping experiments synergistically determined the Z-scheme electron transfer path of the heterojunction. The possible photocatalytic mechanism of Bi5O7I/Bi2SiO5 heterojunction was proposed. Overall, the well-designed Bi5O7I/Bi2SiO5 heterojunction depicted great practical promise in efficient treatment of organic pollutants.