1
|
Li D, Li Q, Zhang Q, Yang R, Ye Q, Tian D, Jiang D. Integrating bimetallic borides with g-C 3N 4 containing cyanamide defects for efficient photocatalytic nitrogen fixation. J Colloid Interface Sci 2024; 672:631-641. [PMID: 38865877 DOI: 10.1016/j.jcis.2024.05.238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/30/2024] [Accepted: 05/31/2024] [Indexed: 06/14/2024]
Abstract
The sustainable generation of ammonia by photocatalytic nitrogen fixation under mild conditions is fascinating compared to conventional industrial processes. Nevertheless, owing to the low charge transfer efficiency, the insufficient light absorption capacity and limited active sites of the photocatalyst cause the difficult adsorption and activation of N2 molecules, thereby resulting in a low photocatalytic conversion efficiency. Herein, a novel bimetallic CoMoB nanosheets (CoMoB) co-catalyst modified carbon nitride with dual moiety defects (CN-TH3/3) Schottky junction photocatalyst is designed for photocatalytic nitrogen reduction reaction (NRR). The photocatalytic nitrogen reduction rate of the optimized CoMoB/CN-TH3/3 photocatalyst is 4.81 mM·g-1·h-1, which is 6.2 and 2.2 times higher than carbon nitride (CN) (0.78 mM·g-1·h-1) and CN-TH3/3 (2.21 mM·g-1·h-1), respectively. The excellent photocatalytic NRR performance is ascribed not only to the introduction of dual moiety defects (cyano and cyanamide groups) that extends the visible light absorption range and promotes exciton polarization dissociation, but also to the formation of interfacial electric field between CoMoB and CN-TH3/3, which effectively facilitates the interfacial charge transfer. Thus, the synergistic interaction between CN-TH3/3 and CoMoB further increases the electron numble of CoMoB active sites, which effectively strengthens the adsorption and activation of N2 and weakens the NN triple bond, thereby enhancing the photocatalytic NRR activity. This work highlights the introduced dual moiety defects and bimetallic CoMoB co-catalyst to synergistically enhance the photocatalytic nitrogen reduction performance.
Collapse
Affiliation(s)
- Di Li
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
| | - Qin Li
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
| | - Qiong Zhang
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
| | - Ran Yang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Qianjin Ye
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Dan Tian
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Deli Jiang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
| |
Collapse
|
2
|
Jing YN, Yin XL, Li LL, Wang YL, Xue J, Xu ZF, Liu DQ, Chen CW, Liu XJ, Liu EK. Fe-TiO 2-x/TiO 2 S-scheme homojunction for efficient photocatalytic CO 2 reduction. J Colloid Interface Sci 2024; 668:161-170. [PMID: 38677205 DOI: 10.1016/j.jcis.2024.04.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 04/29/2024]
Abstract
CO2-to-high value-added chemicals via a photocatalytic route is of interest but strangled by the low efficiency. Herein, a novel Fe-TiO2-x/TiO2 S-scheme homojunction was designed and constructed by using a facile surface modification approach whereby oxygen vacancy (OV) and Fe introducing on the TiO2 nanorod surface. The as-synthesized Fe-TiO2-x/TiO2 S-scheme homojunction exhibits positive properties on promoting photocatalytic CO2 reduction: i) the nanorod structure provides numerous active sites and a radical charge transfer path; ii) the doped Fe and OV not only synergistically enhance light utilization but also promote CO2 adsorption; iii) the Fe-TiO2-x/TiO2 S-scheme homojunction benefits photoexcited charge separation and retains stronger redox capacity. Thanks to those good characters, the Fe-TiO2-x/TiO2 homojunction exhibits superior CO2 reduction performances with optimized CO/CH4 generation rates of 122/22 μmol g-1h-1 which exceed those of pure TiO2 by more than 9.4/7.3 folds and most currently reported catalytic systems. This manuscript develops a facile and universal approach to synthesize well-defined homojunction and may inspire the construction of other more high-efficiency photocatalysts toward CO2 reduction and beyond.
Collapse
Affiliation(s)
- Ya-Nan Jing
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, PR China
| | - Xing-Liang Yin
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, PR China.
| | - Lei-Lei Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, PR China.
| | - Yan-Lan Wang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, PR China.
| | - Jia Xue
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, PR China
| | - Ze-Feng Xu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, PR China
| | - Da-Qiang Liu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, PR China
| | - Chuan-Wu Chen
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, PR China
| | - Xiao-Jie Liu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, PR China
| | - Er-Kang Liu
- Institute of Powder Metallurgy and Advanced Ceramics, University of Science and Technology Beijing, Beijing 100083, PR China.
| |
Collapse
|
3
|
Yan X, Yuan M, Yuan YL, Su P, Chen Q, Xiao FX. Photocarrier tunneling triggering CO 2 photocatalysis. Chem Sci 2024; 15:10625-10637. [PMID: 38994408 PMCID: PMC11234827 DOI: 10.1039/d4sc02313g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 05/30/2024] [Indexed: 07/13/2024] Open
Abstract
Solar CO2 reduction to renewable hydrocarbon fuels offers a promising pathway to carbon neutrality, but it is retarded by tough CO2 activation, complicated mechanisms, sluggish charge transport kinetics, and a scarcity of strategies for precise tuning of charge transport pathways. Herein, we first conceptually design a novel insulating polymer-mediated electron-tunneling artificial photosystem via progressive interface configuration regulation, wherein tailor-made Ag@citrate nanocrystals (NCs) are controllably self-assembled on transition metal chalcogenides (TMCs) assisted by an ultrathin insulating polymer interim layer, i.e., poly(allylamine hydrochloride) (PAH). In this multilayered nano-architecture, a solid ultra-thin insulating PAH interim layer serves as an unexpected charge tunneling mediator to stimulate smooth electron transfer from the TMC substrate to the terminal electron reservoirs of Ag@citrate NCs, engendering the tandem charge transfer route and significantly boosting the visible-light-driven photocatalytic CO2-to-syngas conversion performances. Furthermore, we have ascertained that such TMC-insulating polymer-metal NC tunneling photosystems are universal. This study would spark new inspiration for unleashing the long-term neglected charge tunneling capability of insulating polymers and diversifying non-conjugated polymer-based artificial photosystems for solar-to-fuel energy conversion.
Collapse
Affiliation(s)
- Xian Yan
- College of Materials Science and Engineering, Fuzhou University, New Campus Fujian Province 350108 China
| | - Meng Yuan
- College of Materials Science and Engineering, Fuzhou University, New Campus Fujian Province 350108 China
| | - Ya-Long Yuan
- College of Materials Science and Engineering, Fuzhou University, New Campus Fujian Province 350108 China
| | - Peng Su
- College of Materials Science and Engineering, Fuzhou University, New Campus Fujian Province 350108 China
| | - Qing Chen
- College of Materials Science and Engineering, Fuzhou University, New Campus Fujian Province 350108 China
| | - Fang-Xing Xiao
- College of Materials Science and Engineering, Fuzhou University, New Campus Fujian Province 350108 China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 PR China
| |
Collapse
|
4
|
Wang X, Liao H, Tan W, Song W, Li X, Ji J, Wei X, Wu C, Yin C, Tong Q, Peng B, Sun S, Wan H, Dong L. Surface Coordination Environment Engineering on Pt xCu 1-x Alloy Catalysts for the Efficient Photocatalytic Reduction of CO 2 to CH 4. ACS APPLIED MATERIALS & INTERFACES 2024; 16:22089-22101. [PMID: 38651674 DOI: 10.1021/acsami.4c03861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Alloy catalysts have been reported to be robust in catalyzing various heterogeneous reactions due to the synergistic effect between different metal atoms. In this work, aimed at understanding the effect of the coordination environment of surface atoms on the catalytic performance of alloy catalysts, a series of PtxCu1-x alloy model catalysts supported on anatase-phase TiO2 (PtxCu1-x/Ti, x = 0.4, 0.5, 0.6, 0.8) were developed and applied in the classic photocatalytic CO2 reduction reaction. According to the results of catalytic performance evaluation, it was found that the photocatalytic CO2 reduction activity on PtxCu1-x/Ti showed a volcanic change as a function of the Pt/Cu ratio, the highest CO2 conversion was achieved on Pt0.5Cu0.5/Ti, with CH4 as the main product. Further systematic characterizations and theoretical calculations revealed that the equimolar amounts of Pt and Cu in Pt0.5Cu0.5/Ti facilitated the generation of more Cu-Pt-paired sites (i.e., the higher coordination number of Pt-Cu), which would favor a bridge adsorption configuration of CO2 and facilitate the electron transfer, thus resulting in the highest photocatalytic CO2 reduction efficiency on Pt0.5Cu0.5/Ti. This work provided new insights into the design of excellent CO2 reduction photocatalysts with high CH4 selectivity from the perspective of surface coordination environment engineering on alloy catalysts.
Collapse
Affiliation(s)
- Xin Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Haohong Liao
- State Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, PR China
| | - Wei Tan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Wang Song
- State Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, PR China
| | - Xue Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Jiawei Ji
- State Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, PR China
| | - Xiaoqian Wei
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Cong Wu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Chenxu Yin
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Qing Tong
- Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Nanjing University, Nanjing 210023, PR China
| | - Bo Peng
- SINOPEC Research Institute of Petroleum Processing Co., Ltd., Beijing 100083, China
| | - Shangcong Sun
- SINOPEC Research Institute of Petroleum Processing Co., Ltd., Beijing 100083, China
| | - Haiqin Wan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Lin Dong
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
- Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Nanjing University, Nanjing 210023, PR China
| |
Collapse
|
5
|
Li BH, Zhang KH, Wang XJ, Li YP, Liu X, Han BH, Li FT. Construction synergetic adsorption and activation surface via confined Cu/Cu 2O and Ag nanoparticles on TiO 2 for effective conversion of CO 2 to CH 4. J Colloid Interface Sci 2024; 660:961-973. [PMID: 38281477 DOI: 10.1016/j.jcis.2024.01.159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/04/2024] [Accepted: 01/22/2024] [Indexed: 01/30/2024]
Abstract
High-performance photocatalysts for catalytic reduction of CO2 are largely impeded by inefficient charge separation and surface activity. Reasonable design and efficient collaboration of multiple active sites are important for attaining high reactivity and product selectivity. Herein, Cu-Cu2O and Ag nanoparticles are confined as dual sites for assisting CO2 photoreduction to CH4 on TiO2. The introduction of Cu-Cu2O leads to an all-solid-state Z-scheme heterostructure on the TiO2 surface, which achieves efficient electron transfer to Cu2O and adsorption and activation of CO2. The confined nanometallic Ag further enhances the carrier's separation efficiency, promoting the conversion of activated CO2 molecules to •COOH and further conversion to CH4. Particularly, this strategy is highlighted on the TiO2 system for a photocatalytic reduction reaction of CO2 and H2O with a CH4 generation rate of 62.5 μmol∙g-1∙h-1 and an impressive selectivity of 97.49 %. This work provides new insights into developing robust catalysts through the artful design of synergistic catalytic sites for efficient photocatalytic CO2 conversion.
Collapse
Affiliation(s)
- Bo-Hui Li
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Kai-Hua Zhang
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Xiao-Jing Wang
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China.
| | - Yu-Pei Li
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Xinying Liu
- Institute for the Development of Energy for African Sustainability (IDEAS), University of South Africa (UNISA), Florida 1710, South Africa
| | - Bao-Hang Han
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Fa-Tang Li
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China.
| |
Collapse
|
6
|
Wang J, Sheng R, Xiao J, Lu L, Peng Y, Gu D, Xiao W. Matched Redox Kinetics on Triazine-Based Carbon Nitride/Ni(OH) 2 for Stoichiometric Overall Photocatalytic CO 2 Conversion. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2309707. [PMID: 38386245 DOI: 10.1002/smll.202309707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/24/2023] [Indexed: 02/23/2024]
Abstract
Mismatched reaction kinetics of CO2 reduction and H2 O oxidation is the main obstacle limiting the overall photocatalytic CO2 conversion. Here, a molten salt strategy is used to construct tubular triazine-based carbon nitride (TCN) with more adsorption sites and stronger activation capability. Ni(OH)2 nanosheets are then grown over the TCN to trigger a proton-coupled electron transfer for a stoichiometric overall photocatalytic CO2 conversion via "3CO2 + 2H2 O = CH4 + 2CO + 3O2 ." TCN reduces the energy barrier of H2 O dissociation to promote H2 O oxidation to O2 and supply sufficient protons to Ni(OH)2 , whereby the CO2 conversion is accelerated due to the enhanced proton-coupled electron transfer process enabled by the sufficient proton supply from TCN. This work highlights the importance of matching the reaction kinetics of CO2 reduction and H2 O oxidation by proton-coupled electron transfer on stoichiometric overall photocatalytic CO2 conversion.
Collapse
Affiliation(s)
- Jing Wang
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Ren Sheng
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Juanxiu Xiao
- State Key Laboratory of Marine Resources Utilization in South China Sea, Collaborative Innovation Center of Marine Science and Technology, School of Marine Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Li Lu
- National University of Singapore (Chongqing) Research Institute, Chongqing, 401123, P. R. China
| | - Yuhao Peng
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Dong Gu
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, P. R. China
| | - Wei Xiao
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| |
Collapse
|
7
|
Li S, Yu H, Wang Y, Wang S, Zhang L, Zhu P, Gao C, Yu J. Exploring a Ni-N 4 Active Site-Based Conjugated Microporous Polymer Z-Scheme Heterojunction Through Covalent Bonding for Visible Light-Driven Photocatalytic CO 2 Conversion in Pure Water. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305900. [PMID: 37786266 DOI: 10.1002/smll.202305900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/11/2023] [Indexed: 10/04/2023]
Abstract
Designing photocatalysts with efficient charge transport and abundant active sites for photocatalytic CO2 reduction in pure water is considered a potential approach. Herein, a nickel-phthalocyanine containing Ni-N4 active sites-based conjugated microporous polymer (NiPc-CMP), offering highly dispersed metal active sites, satisfactory CO2 adsorption capability, and excellent light harvesting properties, is engineered as a photocatalyst. By virtue of the covalently bonded bridge, an atomic-scale interface between the NiPc-CMP/Bi2 WO6 Z-scheme heterojunction with strong chemical interactions is obtained. The interface creates directional charge transport highways and retains a high redox potential, thereby enhancing the photoexcited charge carrier separation and photocatalytic efficiency. Consequently, the optimal NiPc-CMP/Bi2 WO6 (NCB-3) achieves efficient photocatalytic CO2 reduction performance in pure water under visible-light irradiation without any sacrificial agent or photosensitizer, affording a CO generation rate of 325.9 µmol g-1 with CO selectivity of 93% in 8 h, outperforming those of Bi2 WO6 and NiPc-CMP, individually. Experimental and theoretical calculations reveal the promotion of interfacial photoinduced electron separation and the role of Ni-N4 active sites in photocatalytic reactions. This study presents a high-performance CMP-based Z-scheme heterojunction with an effective interfacial charge-transfer route and rich metal active sites for photocatalytic CO2 conversion.
Collapse
Affiliation(s)
- Shanshan Li
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Haihan Yu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Yuwen Wang
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan, 250022, China
| | - Shuai Wang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Lina Zhang
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan, 250022, China
| | - Peihua Zhu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Chaomin Gao
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| |
Collapse
|