The continued warming of the Earth caused by CO2 emissions and the limitations of current technologies have led to a demand for new green and non-polluting CO2 capture technologies. Carbonic anhydrase (CA) mimicking nanozymes are a promising pathway for developing such technologies, but their incorporation of the spatial structure of natural active sites into nanomaterials remains a challenge. Therefore, the development of novel CA mimicking nanozymes and the expansion of bionanomaterials for CO2 capture technology are essential. In this work, a novel CA mimic using 2D nitrogen-doped graphene with Zn nanoclusters (Zncluster/NG) was designed. Through changing the pyrolysis conditions, such as atmosphere and temperature, the enzyme-mimicking ac-tivities of Zncluster/NG were rationally regulated. The regulation was ascribed to the fine tune surface properties and catalytic sites of Zncluster/NG nanozymes such Zn nanocluster size, Zn content, and specific surface area, leading to the highest CA-mimicking activity possible by Zncluster/NG-900-800NH3. Notably, the Zncluster/NG- 900-800NH3 nanozyme was capable of surviving high temperatures and wide pH ranges, and showed 10 times higher catalytic activity at 75 degrees C than at room temperature. Finally, experiments and DFT calculations were utilized to verify the advantages and surface catalysis mechanisms of Zncluster/NG in CO2 capture based on mimicking carbonic anhydrase. This study provides a facile and reference strategy for the rational design of CA mimics and broadens the application of nanozymes in CO2 capture technology.
机构:
Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
Chen, Xiangnan
Wang, Xiaohui
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Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan, Peoples R ChinaWuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
Wang, Xiaohui
Fang, De
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Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan, Peoples R China
Wuhan Univ Technol, Ctr Mat Res & Anal, Wuhan, Peoples R ChinaWuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
机构:
Shandong Univ, Helmholtz Inst Biotechnol, State Key Lab Microbial Technol, Qingdao 266237, Peoples R ChinaShandong Univ, Helmholtz Inst Biotechnol, State Key Lab Microbial Technol, Qingdao 266237, Peoples R China
Chi, Haixia
Chen, Han
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China Univ Petr East China, Coll Chem Engn, State Key Lab Heavy Oil Proc, Qingdao 266580, Peoples R ChinaShandong Univ, Helmholtz Inst Biotechnol, State Key Lab Microbial Technol, Qingdao 266237, Peoples R China
Chen, Han
Gong, Kai
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Shandong Univ, Helmholtz Inst Biotechnol, State Key Lab Microbial Technol, Qingdao 266237, Peoples R ChinaShandong Univ, Helmholtz Inst Biotechnol, State Key Lab Microbial Technol, Qingdao 266237, Peoples R China
Gong, Kai
Wang, Xiaoqiang
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China Univ Petr East China, Coll Chem Engn, State Key Lab Heavy Oil Proc, Qingdao 266580, Peoples R ChinaShandong Univ, Helmholtz Inst Biotechnol, State Key Lab Microbial Technol, Qingdao 266237, Peoples R China
Wang, Xiaoqiang
Zhang, Youming
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Shandong Univ, Helmholtz Inst Biotechnol, State Key Lab Microbial Technol, Qingdao 266237, Peoples R ChinaShandong Univ, Helmholtz Inst Biotechnol, State Key Lab Microbial Technol, Qingdao 266237, Peoples R China
机构:
Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
Chen, Xiangnan
Wang, Xiaohui
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机构:
Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan, Peoples R ChinaWuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
Wang, Xiaohui
Fang, De
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h-index: 0
机构:
Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan, Peoples R China
Wuhan Univ Technol, Ctr Mat Res & Anal, Wuhan, Peoples R ChinaWuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
机构:
Shandong Univ, Helmholtz Inst Biotechnol, State Key Lab Microbial Technol, Qingdao 266237, Peoples R ChinaShandong Univ, Helmholtz Inst Biotechnol, State Key Lab Microbial Technol, Qingdao 266237, Peoples R China
Chi, Haixia
Chen, Han
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h-index: 0
机构:
China Univ Petr East China, Coll Chem Engn, State Key Lab Heavy Oil Proc, Qingdao 266580, Peoples R ChinaShandong Univ, Helmholtz Inst Biotechnol, State Key Lab Microbial Technol, Qingdao 266237, Peoples R China
Chen, Han
Gong, Kai
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h-index: 0
机构:
Shandong Univ, Helmholtz Inst Biotechnol, State Key Lab Microbial Technol, Qingdao 266237, Peoples R ChinaShandong Univ, Helmholtz Inst Biotechnol, State Key Lab Microbial Technol, Qingdao 266237, Peoples R China
Gong, Kai
Wang, Xiaoqiang
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机构:
China Univ Petr East China, Coll Chem Engn, State Key Lab Heavy Oil Proc, Qingdao 266580, Peoples R ChinaShandong Univ, Helmholtz Inst Biotechnol, State Key Lab Microbial Technol, Qingdao 266237, Peoples R China
Wang, Xiaoqiang
Zhang, Youming
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h-index: 0
机构:
Shandong Univ, Helmholtz Inst Biotechnol, State Key Lab Microbial Technol, Qingdao 266237, Peoples R ChinaShandong Univ, Helmholtz Inst Biotechnol, State Key Lab Microbial Technol, Qingdao 266237, Peoples R China