气候变化领域集成服务门户(CCPortal): Mechanism investigation for ultra-efficient photocatalytic water disinfection based on rational design of indirect Z-scheme heterojunction black phosphorus QDs/Cu2O nanoparticles

CCPortal

DOI	10.1016/j.jhazmat.2021.127281
	Mechanism investigation for ultra-efficient photocatalytic water disinfection based on rational design of indirect Z-scheme heterojunction black phosphorus QDs/Cu2O nanoparticles
	Luo, Shijia; Liu, Ruixi; Zhang, Xixi; Chen, Rui; Yan, Mingming; Huang, Kerang; Sun, Jing; Wang, Rong; Wang, Jianlong
通讯作者	Wang, R ; Wang, JL (通讯作者)，Northwest A&F Univ, Coll Food Sci & Engn, Yangling 712100, Shaanxi, Peoples R China.
发表日期	2022
ISSN	0304-3894
EISSN	1873-3336
卷号	424
英文摘要	Photocatalysis has been regarded as a promising inactivation technology targeting to reduce drug-resistant bacteria contamination, but developing efficient photocatalysts with broad visible light harvesting capability is still a challenge. Here we report a MOFs-derived BPQDs/Cu2O/N-doped hollow porous carbon (BP/CNC) with indirect Z-scheme heterojunctions (BPQDs/Cu2O), which can inactivate 99.99999% Methicillin-resistant Staphylococcus aureus (MRSA) at a concentration of only 10 mg/L. Combining photoelectrochemical techniques and electrochemical measurements, the efficient inactivation process was attributed to the synergistic effect of enhanced light utilization and effective suppression of photogenerated carrier recombination. The mechanism of gradually damaged cell membrane for MRSA was studied by employing scanning electron microscopy (SEM), fluorescence staining and coagulase titer test to further decipher the changes in bacterial cells. We propose that reactive oxygen species (ROS) destroys the cell wall membrane and causes the leakage of cell contents, eventually leading to death. In addition, a series of in vitro and in vivo toxicity tests were conducted to evaluate the biocompatibility of the antibacterial system and its potential use in practice. This strategy of BPQDs/ Cu2O indirect heterojunction fabrication can spatially inhibit the recombination of photogenerated carriers, expands the light absorption range, providing a feasible method for disinfecting microbial contaminated water.
关键词	ESCHERICHIA-COLI POROUS CARBON NITROGEN FILMS INACTIVATION STABILITY COMPOSITE CELL
英文关键词	Photocatalytic inactivation; Black phosphorus quantum dots; MOFs-derivatives; Methicillin-resistant Staphylococcus aureus; Indirect Z-scheme heterojunction
语种	英语
WOS研究方向	Engineering ; Environmental Sciences & Ecology
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000703551200002
来源期刊	JOURNAL OF HAZARDOUS MATERIALS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254954
作者单位	[Luo, Shijia; Liu, Ruixi; Zhang, Xixi; Chen, Rui; Yan, Mingming; Wang, Rong; Wang, Jianlong] Northwest A&F Univ, Coll Food Sci & Engn, Yangling 712100, Shaanxi, Peoples R China; [Huang, Kerang] Northwest A&F Univ, Life Sci Res Core Serv, Yangling 712100, Shaanxi, Peoples R China; [Sun, Jing] Chinese Acad Sci, Northwest Inst Plateau Biol, Qinghai Key Lab Qinghai Tibet Plateau Biol Resour, Xining 810008, Qinghai, Peoples R China
推荐引用方式 GB/T 7714	Luo, Shijia,Liu, Ruixi,Zhang, Xixi,et al. Mechanism investigation for ultra-efficient photocatalytic water disinfection based on rational design of indirect Z-scheme heterojunction black phosphorus QDs/Cu2O nanoparticles[J]. 中国科学院西北生态环境资源研究院,2022,424.
APA	Luo, Shijia.,Liu, Ruixi.,Zhang, Xixi.,Chen, Rui.,Yan, Mingming.,...&Wang, Jianlong.(2022).Mechanism investigation for ultra-efficient photocatalytic water disinfection based on rational design of indirect Z-scheme heterojunction black phosphorus QDs/Cu2O nanoparticles.JOURNAL OF HAZARDOUS MATERIALS,424.
MLA	Luo, Shijia,et al."Mechanism investigation for ultra-efficient photocatalytic water disinfection based on rational design of indirect Z-scheme heterojunction black phosphorus QDs/Cu2O nanoparticles".JOURNAL OF HAZARDOUS MATERIALS 424(2022).