期刊
ACS APPLIED MATERIALS & INTERFACES
卷 13, 期 31, 页码 37102-37110出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c08840
关键词
metal-organic framework; metalloporphyrin; superoxide ion; singlet oxygen; photocatalyst; chemical warfare agents
资金
- National Natural Science Foundation of China [21731002, 21871172]
- Guangdong Major Project of Basic and Applied Research [2019B030302009]
- Fundamental Research Funds for the Central Universities [21619405]
- Guangzhou Science and Technology Program [202002030411]
- Jinan University
A new type of metal-organic framework was studied as a photocatalyst for the degradation of chemical warfare agents, effectively oxidizing sulfur mustard simulant and proposing a new detoxification strategy.
The exploration of highly efficient materials for the degradation of chemical warfare agents has been a longstanding task for preventing human exposure. Herein, we report a series of metal-organic frameworks (MOFs) M-TCPP-La based on metallo-tetra(4-carboxyphenyl)porphyrin and La-III, which were applied to selectively oxidize 2-chloroethyl ethyl sulfide (CEES, a sulfur mustard simulant) as heterogeneous photocatalysts. After irradiation from a commercial blue light-emitting diode (LED), both superoxide ion and singlet oxygen were generated by M-TCPP-La and involved in selective oxidization of CEES to 2-chloroethyl ethyl sulfoxide (CEESO). Notably, a very short half lifetime (2.5 min) was achieved using Fe-TCPP-La as the photocatalyst. In comparison to currently utilizing singlet oxygen and hydrogen peroxide as oxidizing agents, this work employing both singlet oxygen and superoxide ion represents a new and effective strategy of detoxification of mustard gas.
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