Recyclable and reusable direct Z-scheme heterojunction CeO2/TiO2 nanotube arrays for photocatalytic water disinfection

NWIPB OpenIR

	Recyclable and reusable direct Z-scheme heterojunction CeO2/TiO2 nanotube arrays for photocatalytic water disinfection
	Yan, Huiling; Wang, Rong; Liu, RuiXi; Xu, Ting; Sun, Jing; Liu, Lizhi; Wang, Jianlong
	2021
发表期刊	APPLIED CATALYSIS B-ENVIRONMENTAL
卷号	291
摘要	Compared with the powder photocatalysts, the substrate photocatalysts are more practical in water disinfection because of their specific properties such as easy in recovery and high reusability. However, the low sterilization efficiency of substrate photocatalysts limit its further applications. Here, we prepared a binary composite direct Z-scheme heterojunction CeO2/TiO2 nanotube arrays (CeO2/TiO2 NTAs) to improve the photocatalytic disinfection performance. The heterojunction realized the spatial separation between the oxidation site and the reduction site under light irradiation. Consequently, it was favorable to produce ROS (center dot O-2(-), center dot OH, O-1(2)) and showed a good antibacterial effect on both Gram-positive and negative bacteria (98.8 %). In addition, the results of the cyclic sterilization experiment showed that the sterilization efficiency of the CeO2/TiO2 NTAs still reached 98.3 % after 3 times of recycling and reuse. Furthermore, the material still maintains a good sterilization effect and recovery performance in practical applications.
关键词	CeO2/TiO2 nanotube arrays Photocatalytic inactivation Water disinfection Mechanism Direct Z-scheme heterojunction
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/60743
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Yan, Huiling,Wang, Rong,Liu, RuiXi,et al. Recyclable and reusable direct Z-scheme heterojunction CeO2/TiO2 nanotube arrays for photocatalytic water disinfection[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2021,291.
APA	Yan, Huiling.,Wang, Rong.,Liu, RuiXi.,Xu, Ting.,Sun, Jing.,...&Wang, Jianlong.(2021).Recyclable and reusable direct Z-scheme heterojunction CeO2/TiO2 nanotube arrays for photocatalytic water disinfection.APPLIED CATALYSIS B-ENVIRONMENTAL,291.
MLA	Yan, Huiling,et al."Recyclable and reusable direct Z-scheme heterojunction CeO2/TiO2 nanotube arrays for photocatalytic water disinfection".APPLIED CATALYSIS B-ENVIRONMENTAL 291(2021).