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Sun X, Sun L, Li G, Tuo Y, Ye C, Yang J, Low J, Yu X, Bitter JH, Lei Y, Wang D, Li Y. Phosphorus Tailors the d-Band Center of Copper Atomic Sites for Efficient CO 2 Photoreduction under Visible-Light Irradiation. Angew Chem Int Ed Engl 2022; 61:e202207677. [PMID: 35801835 DOI: 10.1002/anie.202207677] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Indexed: 12/26/2022]
Abstract
Photoreduction of CO2 into solar fuels has received great interest, but suffers from low catalytic efficiency and poor selectivity. Herein, two single-Cu-atom catalysts with unique Cu configurations in phosphorus-doped carbon nitride (PCN), namely, Cu1 N3 @PCN and Cu1 P3 @PCN were fabricated via selective phosphidation, and tested in visible light-driven CO2 reduction by H2 O without sacrificial agents. Cu1 N3 @PCN was exclusively active for CO production with a rate of 49.8 μmolCO gcat -1 h-1 , outperforming most polymeric carbon nitride (C3 N4 ) based catalysts, while Cu1 P3 @PCN preferably yielded H2 . Experimental and theoretical analysis suggested that doping P in C3 N4 by replacing a corner C atom upshifted the d-band center of Cu in Cu1 N3 @PCN close to the Fermi level, which boosted the adsorption and activation of CO2 on Cu1 N3 , making Cu1 N3 @PCN efficiently convert CO2 to CO. In contrast, Cu1 P3 @PCN with a much lower Cu 3d electron energy exhibited negligible CO2 adsorption, thereby preferring H2 formation via photocatalytic H2 O splitting.
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Affiliation(s)
- Xiaohui Sun
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Lian Sun
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, P. R. China
| | - Guanna Li
- Biobased Chemistry and Technology, Wageningen University & Research, Bornse Weilanden 9, Wageningen, 6708WG, The Netherlands.,Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, Wageningen, 6708WE, The Netherlands
| | - Yongxiao Tuo
- Department of Materials Science and Engineering, China University of Petroleum (Huadong), Qingdao, 266580, P. R. China
| | - Chenliang Ye
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Jiarui Yang
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Jingxiang Low
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xiang Yu
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Johannes H Bitter
- Biobased Chemistry and Technology, Wageningen University & Research, Bornse Weilanden 9, Wageningen, 6708WG, The Netherlands
| | - Yongpeng Lei
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, P. R. China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Yadong Li
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
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Sun X, Sun L, Li G, Tuo Y, Ye C, Yang J, Low J, Yu X, Bitter JH, Lei Y, Wang D, Li Y. Phosphorus Tailors the d‐Band Center of Copper Atomic Sites for Efficient CO2 Photoreduction under Visible‐Light Irradiation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaohui Sun
- Tsinghua University Department of Chemistry Haidian District, Beijing 100084 beijing CHINA
| | - Lian Sun
- Central South University State Key Laboratory of Powder Metallurgy CHINA
| | - Guanna Li
- Wageningen University & Research Biobased Chemistry and Technology NETHERLANDS
| | - Yongxiao Tuo
- China University of Petroleum Huadong Department of Materials Science and Engineering CHINA
| | - Chenliang Ye
- Tsinghua University Department of Chemistry CHINA
| | - Jiarui Yang
- Tsinghua University Department of Chemistry CHINA
| | - Jingxiang Low
- University of Science and Technology of China Hefei National Laboratory for Physical Sciences at the Microscale CHINA
| | - Xiang Yu
- Shenzhen University Institute of Microscale Optoelectronics CHINA
| | - Johannes H. Bitter
- Wageningen University & Research Biobased Chemistry and Technology NETHERLANDS
| | - Yongpeng Lei
- Central South University State Key Laboratory of Powder Metallurgy CHINA
| | | | - Yadong Li
- Tsinghua University Department of Chemistry District of Haidian 100084 Beijing CHINA
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Cai F, Tang D, Wang J, Lin Y. Biomimetic -mineralized multifunctional nanoflowers for anodic-stripping voltammetric immunoassay of rehabilitation-related proteins. Analyst 2021; 147:80-86. [PMID: 34846386 DOI: 10.1039/d1an01934a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
C-reactive proteins (CRPs; an acute-phase protein) in patients with initial acute cerebral infarction neurological rehabilitation prediction have a significant correlation. In this work, a simple and sensitive anodic-stripping voltammetric (ASV) immunosensing system was innovatively designed for the quantitative screening of target CRPs using biomimetic-mineralized bifunctional antibody-Cu3(PO4)2 nanoflowers as molecular tags. In this system, a monoclonal anti-CRP antibody-anchored microtiter plate was utilized to specifically capture target CRPs from the sample. For detection, a sandwiched immunoreaction mode was employed with the antibody-Cu3(PO4)2 nanoflowers in the presence of analytes. Subsequent ASV measurement of copper ions (Cu2+) released under acidic conditions from the bifunctional nanoflowers was conducted at an in situ prepared mercury film electrode. The introduction of hybrid nanoflowers greatly increased the loading amount of copper ions on the molecular tag, thereby amplifying the detectable signal of electrochemical immunoassay. Meanwhile, factors influencing the analytical properties of the electrochemical immunoassay were investigated in detail. By combining the high-efficiency nanohybrids with signal amplification, the dynamic concentration range of electrochemical immunoassay spanned from 0.01 ng mL-1 to 100 ng mL-1 toward the target CRP. The limit of detection was calculated to be 0.0079 ng mL-1 at 3Sblank criterion. Intra- and interassay imprecisions (relative standard deviations: RSDs) were less than or equal to 6.72%. Good anti-interference ability, long-term storage stability, and acceptable accuracy for the evaluation of human serum specimens were observed during a series of procedures to determine the target protein. In addition, the bifunctional nanoflower-based immunosensing system offers promise for the simple, cost-effective analysis of disease-related proteins.
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Affiliation(s)
- Fan Cai
- Central Laboratory at the Second Affiliated Hospital of Fujian Traditional Chinese Medical University, Innovation and Transformation Center, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian, P.R. China. .,College of Life Sciences, Fujian Normal University, Fuzhou 350117, Fujian, P.R. China
| | - Dianping Tang
- Key Laboratory for Analytical Science of Food Safety and Biology (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, P.R. China
| | - Jun Wang
- Department of General Surgery at The Second Affiliated Hospital of Fujian Traditional Chinese Medical University, Collaborative Innovation Center for Rehabilitation Technology, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian, P.R. China.
| | - Yao Lin
- Central Laboratory at the Second Affiliated Hospital of Fujian Traditional Chinese Medical University, Innovation and Transformation Center, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian, P.R. China.
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