Synergistic Features of Superoxide Molecule Anchoring and Charge Transfer on Two-Dimensional Ti3C2Tx MXene for Efficient Peroxymonosulfate Activation

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院饮用水科学与技术重点实验室

	Synergistic Features of Superoxide Molecule Anchoring and Charge Transfer on Two-Dimensional Ti3C2Tx MXene for Efficient Peroxymonosulfate Activation
	Ding, Mingmei; Chen, Wei; Xu, Hang; Lu, Chunhui; Lin, Tao; Shen, Zhen; Tao, Hui; Zhang, Kai
刊名	ACS APPLIED MATERIALS & INTERFACES
	2020-02-26
卷号	12 期号:8 页码:9209-9218
关键词	Fenton-like reactions Ti3C2Tx monolayer dimensional reduction frontier orbitals active sites
ISSN号	1944-8244
英文摘要	The heterogeneous Fenton-like process is regarded as a promising approach to produce reactive oxygen species for water purification and environmental remediation. Here, we report a simple and rational strategy for the design of an efficient catalyst by reducing the dimensionality instead of changing the composition or structure. Based on theoretical and experimental evidence, considerable active sites were exposed on the low-dimensional Ti3C2Tx monolayer surface and showed outstanding reactivity toward peroxymonosulfate activation, which was mainly because of the superior compatibility between the highest occupied molecular orbital of catalysts and lowest unoccupied molecular orbital of Oxone. Stimulated emission depletion super-resolution microscopy innovatively provided visual insights into the spatiotemporal heterogeneous activation process and revealed that the unilaminar Ti3C2Tx nanosheet exhibited preferable reaction dynamics relative to its inert bulk counterpart, with an aqueous 2,4-dichlorophenoxyacetic acid degradation rate similar to 376 times higher than that when using bulk Ti3C2Tx as the activator.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/45363]
专题	生态环境研究中心_中国科学院饮用水科学与技术重点实验室
推荐引用方式 GB/T 7714	Ding, Mingmei,Chen, Wei,Xu, Hang,et al. Synergistic Features of Superoxide Molecule Anchoring and Charge Transfer on Two-Dimensional Ti3C2Tx MXene for Efficient Peroxymonosulfate Activation[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(8):9209-9218.
APA	Ding, Mingmei.,Chen, Wei.,Xu, Hang.,Lu, Chunhui.,Lin, Tao.,...&Zhang, Kai.(2020).Synergistic Features of Superoxide Molecule Anchoring and Charge Transfer on Two-Dimensional Ti3C2Tx MXene for Efficient Peroxymonosulfate Activation.ACS APPLIED MATERIALS & INTERFACES,12(8),9209-9218.
MLA	Ding, Mingmei,et al."Synergistic Features of Superoxide Molecule Anchoring and Charge Transfer on Two-Dimensional Ti3C2Tx MXene for Efficient Peroxymonosulfate Activation".ACS APPLIED MATERIALS & INTERFACES 12.8(2020):9209-9218.