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Yuan Z, Liu J, Xiang Y, Jian X, Zhang H, Liu M, Cao R, Hu Y, Gao X. Activation of Bi 2MoO 6/Zn 0.5Cd 0.5S charge transfer through interface chemical bonds and surface defects for photothermal catalytic CO 2 reduction. J Colloid Interface Sci 2025; 677:482-493. [PMID: 39154441 DOI: 10.1016/j.jcis.2024.08.103] [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: 06/29/2024] [Revised: 08/13/2024] [Accepted: 08/14/2024] [Indexed: 08/20/2024]
Abstract
The photocatalytic reduction of CO2 to high-value fuels has been proposed as a solution to the energy crisis caused by the depletion of energy resources. Despite significant advancements in photocatalytic CO2 reduction catalyst development, there are still limitations such as poor CO2 adsorption/activation and low charge transfer efficiency. In this study, we employed a defect-induced heterojunction strategy to construct atomic-level interface Cd-O bonds and form Bi2MoO6/Zn0.5Cd0.5S heterojunctions. The sulfur vacancies (VS) formed in Bi2MoO6/Zn0.5Cd0.5S acted as activation sites for CO2 adsorption. While the interfacial stability provided by the Cd-O bonds served as an electron transfer channel that facilitated the movement of electrons from the interface to the catalytic site. The VS and Cd-O bonds simultaneously influence the distribution of charge, inducing the creation of an interface electric field that facilitates the upward displacement of the center of the d-band. This enhances the adsorption of reaction intermediates. The optimized Bi2MoO6/Zn0.5Cd0.5S heterostructure exhibited high selectivity and stability of photoelectrochemical properties for CO, generating 42.97 μmol⋅g-1⋅h-1 of CO, which was 16.65-fold higher than Zn0.5Cd0.5S under visible light drive. This research provides valuable insights for designing photocatalyst interfaces with improved CO2 adsorption conversion efficiency.
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Affiliation(s)
- Zhongqiang Yuan
- Department of Chemistry and Chemical Engineering, Clean Utilization of Low Rank Coal of Shaanxi Collaborative Innovation Center, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an 716000, PR China
| | - Jie Liu
- Department of Chemistry and Chemical Engineering, Clean Utilization of Low Rank Coal of Shaanxi Collaborative Innovation Center, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an 716000, PR China
| | - Yu Xiang
- Department of Chemistry and Chemical Engineering, Clean Utilization of Low Rank Coal of Shaanxi Collaborative Innovation Center, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an 716000, PR China
| | - Xuan Jian
- Department of Chemistry and Chemical Engineering, Clean Utilization of Low Rank Coal of Shaanxi Collaborative Innovation Center, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an 716000, PR China
| | - Hao Zhang
- Department of Chemistry and Chemical Engineering, Clean Utilization of Low Rank Coal of Shaanxi Collaborative Innovation Center, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an 716000, PR China
| | - Mimi Liu
- Department of Chemistry and Chemical Engineering, Clean Utilization of Low Rank Coal of Shaanxi Collaborative Innovation Center, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an 716000, PR China
| | - Rui Cao
- Department of Chemistry and Chemical Engineering, Clean Utilization of Low Rank Coal of Shaanxi Collaborative Innovation Center, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an 716000, PR China
| | - Yanan Hu
- Department of Chemistry and Chemical Engineering, Clean Utilization of Low Rank Coal of Shaanxi Collaborative Innovation Center, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an 716000, PR China
| | - Xiaoming Gao
- Department of Chemistry and Chemical Engineering, Clean Utilization of Low Rank Coal of Shaanxi Collaborative Innovation Center, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an 716000, PR China.
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Peng L, Duan J, Liang Y, Zhang H, Duan C, Liu S. Recent Advances in Metal-Organic Frameworks and Their Derivatives for Adsorption of Radioactive Iodine. Molecules 2024; 29:4170. [PMID: 39275018 PMCID: PMC11397681 DOI: 10.3390/molecules29174170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 07/24/2024] [Accepted: 07/26/2024] [Indexed: 09/16/2024] Open
Abstract
Radioactive iodine (131I) with a short half-life of ~8.02 days is one of the most commonly used nuclides in nuclear medicine. However, 131I easily poses a significant risk to human health and ecological environment. Therefore, there is an urgent need to develop a secure and efficient strategy to capture and store radioactive iodine. Metal-organic frameworks (MOFs) are a new generation of sorbents with outstanding physical and chemical properties, rendering them attractive candidates for the adsorption and immobilization of iodine. This review focuses on recent research advancements in mechanisms underlying iodine adsorption over MOFs and their derivatives, including van der Waals interactions, complexing interactions, and chemical precipitation. Furthermore, this review concludes by outlining the challenges and opportunities for the safe disposal of radioactive iodine from the perspective of the material design and system evaluation based on our knowledge. Thus, this paper aims to offer necessary information regarding the large-scale production of MOFs for iodine adsorption.
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Affiliation(s)
- Li Peng
- Department of Radiology, School of Medicine, Yangtze University, Jingzhou 434023, China
| | - Jiali Duan
- School of Materials Science and Hydrogen Engineering, Foshan University, Foshan 528231, China
| | - Yu Liang
- School of Materials Science and Hydrogen Engineering, Foshan University, Foshan 528231, China
| | - Haiqi Zhang
- School of Materials Science and Hydrogen Engineering, Foshan University, Foshan 528231, China
- School of Materials Science & Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Chongxiong Duan
- School of Materials Science and Hydrogen Engineering, Foshan University, Foshan 528231, China
| | - Sibin Liu
- Department of Radiology, School of Medicine, Yangtze University, Jingzhou 434023, China
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Bi RX, Peng ZH, Lei L, Wang XX, Liu X, Zhang L, Liang RP, Qiu JD. Enhanced photocatalytic U(VI) reduction via double internal electric field in CoWO 4/covalent organic frameworks p-n heterojunction. JOURNAL OF HAZARDOUS MATERIALS 2024; 475:134869. [PMID: 38870857 DOI: 10.1016/j.jhazmat.2024.134869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 06/06/2024] [Accepted: 06/08/2024] [Indexed: 06/15/2024]
Abstract
Photoreduction of highly toxic U(VI) to less toxic U(IV) is crucial for mitigating radioactive contamination. Herein, a CoWO4/TpDD p-n heterojunction is synthesized, with TpDD serving as the n-type semiconductor substrate and CoWO4 as the p-type semiconductor grown in situ on its surface. The Fermi energy difference between TpDD and CoWO4 provides the electrochemical potential for charge-hole separation. Moreover, the Coulombic forces from the distinct carrier types between the two materials synergistically facilitate the transfer of electrons and holes. Hence, an internal electric field directed from TpDD to CoWO4 is established. Under photoexcitation conditions, charges and holes migrate efficiently along the curved band and internal electric field, further enhancing charge-hole separation. As a result, the removal capacity of CoWO4/TpDD increases from 515.2 mg/g in the dark to 1754.6 mg/g under light conditions. Thus, constructing a p-n heterojunction proves to be an effective strategy for remediating uranium-contaminated environments.
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Affiliation(s)
- Rui-Xiang Bi
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, PR China
| | - Zhi-Hai Peng
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, PR China
| | - Lan Lei
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, PR China
| | - Xiao-Xing Wang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, PR China
| | - Xin Liu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, PR China
| | - Li Zhang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, PR China
| | - Ru-Ping Liang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, PR China.
| | - Jian-Ding Qiu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, PR China; State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, PR China.
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Huang X, Du R, Zhang Y, Ren J, Yang Q, Wang K, Ni Y, Yao Y, Ali Soomro R, Guo L, Yang C, Wang D, Xu B, Fu F. Modulating charge oriented accumulation via interfacial chemical-bond on In 2O 3/Bi 2MoO 6 heterostructures for photocatalytic nitrogen fixation. J Colloid Interface Sci 2024; 664:33-44. [PMID: 38458053 DOI: 10.1016/j.jcis.2024.03.018] [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: 02/16/2024] [Revised: 02/29/2024] [Accepted: 03/03/2024] [Indexed: 03/10/2024]
Abstract
Photocatalytic nitrogen fixation presents an eco-friendly approach to converting atmospheric nitrogen into ammonia (NH3), but the process faces challenges due to rapid interface charge recombination. Here, we report an innovative charge transfer and oriented accumulation strategy using an In-O-Mo bond-modulated S-scheme heterostructure composed of In2O3/Bi2MoO6 (In/BMO) synthesized using a simple electrostatic assembly. The unique interfacial arrangement with optimal photocatalyst configuration (3 % In/BMO) enabled enhanced photogenerated electron separation and transfer, leading to a remarkable nitrogen fixation rate of approximately 150.9 μmol·gcat-1·h-1 under visible light irradiation. The performance of the photocatalyst was 9-fold and 27-fold higher than that of its pristine components, Bi2MoO6 and In2O3, respectively. The experimental and theoretical evaluation deemed interfacial In-O-Mo bonds crucial for rapid transfer and charge-oriented accumulation. Whereas the generated internal electric field drove the spatial separation and transfer of photo-generated electrons and holes, significantly enhancing the photocatalytic N2-to-NH3 conversion efficiency. The proposed work lays the foundation for designing S-scheme heterostructures with highly efficient interfacial bonds, offering a promising avenue for substantial improvements in photocatalytic nitrogen fixation.
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Affiliation(s)
- Xin Huang
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Rui Du
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Yuanyuan Zhang
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Jingyu Ren
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Qisheng Yang
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Kangning Wang
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Yang Ni
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Yuqi Yao
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Razium Ali Soomro
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Li Guo
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China.
| | - Chunming Yang
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China.
| | - Danjun Wang
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China.
| | - Bin Xu
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Feng Fu
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
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Cui D, Yang X, Zhang T, Li M, Li F. Construction of Fe(III) Active Sites on Phenanthroline-Grafted g-C 3N 4: Reduced Work Function and Enhanced Intramolecular Charge Transfer for Efficient N 2 Photofixation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:30040-30054. [PMID: 38813971 DOI: 10.1021/acsami.4c03370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Photocatalytic nitrogen fixation is one of the important pathways for green and sustainable ammonia synthesis, but the extremely high bonding energy of the N≡N triple bond makes it difficult for conventional nitrogen fixation photocatalysts to directly activate and hydrogenate. Given this, we covalently grafted the phenanthroline unit onto graphitic carbon nitride nanosheets (CN) by the simple thermal oxidation method and complexed it with transition metal Fe3+ ions to obtain stable dispersed Fe active sites, which can significantly improve the photocatalytic activity. The Fe(III)-4-P-CN photocatalyst morphology consists of porous lamellar structures internally connected by nanowires. The special morphology of the catalysts gives them excellent nitrogen fixation performance, with an average NH3 yield of 492.9 μmol g-1 h-1, which is 6.5 times higher than that of the pristine CN, as well as better photocatalytic cycling stability. Comprehensive experiments and density-functional theory results show that Fe(III)-4-P-CN is more favorable than pristine CN for *N2 activation, effectively lowering the reaction energy barrier. Moreover, other byproducts (such as nitrate and H2O2) are also produced during the photocatalytic nitrogen fixation process, which also provides a new way for nitrogen-fixing photocatalysts to achieve multifunctional applications.
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Affiliation(s)
- Donghui Cui
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, College of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Xue Yang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, College of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Tingting Zhang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, College of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Meixi Li
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, College of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Fengyan Li
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, College of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
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6
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Wang D, Lu XF, Luan D, Lou XWD. Selective Electrocatalytic Conversion of Nitric Oxide to High Value-Added Chemicals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312645. [PMID: 38271637 DOI: 10.1002/adma.202312645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/30/2023] [Indexed: 01/27/2024]
Abstract
The artificial disturbance in the nitrogen cycle has necessitated an urgent need for nitric oxide (NO) removal. Electrochemical technologies for NO conversion have gained increasing attention in recent years. This comprehensive review presents the recent advancements in selective electrocatalytic conversion of NO to high value-added chemicals, with specific emphasis on catalyst design, electrolyte composition, mass diffusion, and adsorption energies of key intermediate species. Furthermore, the review explores the synergistic electrochemical co-electrolysis of NO with specific carbon source molecules, enabling the synthesis of a range of valuable chemicals with C─N bonds. It also provides in-depth insights into the intricate reaction pathways and underlying mechanisms, offering valuable perspectives on the challenges and prospects of selective NO electrolysis. By advancing comprehension and fostering awareness of nitrogen cycle balance, this review contributes to the development of efficient and sustainable electrocatalytic systems for the selective synthesis of valuable chemicals from NO.
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Affiliation(s)
- Dongdong Wang
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center, City University of Hong Kong, Hong Kong, 999077, China
| | - Xue Feng Lu
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Deyan Luan
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Xiong Wen David Lou
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
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Wang M, Wei G, Li R, Yu M, Liu G, Peng Y. Schottky Junctions with Bi@Bi 2MoO 6 Core-Shell Photocatalysts toward High-Efficiency Solar N 2-to-Ammonnia Conversion in Aqueous Phase. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:780. [PMID: 38727374 PMCID: PMC11085196 DOI: 10.3390/nano14090780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 04/27/2024] [Accepted: 04/29/2024] [Indexed: 05/12/2024]
Abstract
The photocatalytic nitrogen reduction reaction (NRR) in aqueous solution is a green and sustainable strategy for ammonia production. Nonetheless, the efficiency of the process still has a wide gap compared to that of the Haber-Bosch one due to the difficulty of N2 activation and the quick recombination of photo-generated carriers. Herein, a core-shell Bi@Bi2MoO6 microsphere through constructing Schottky junctions has been explored as a robust photocatalyst toward N2 reduction to NH3. Metal Bi self-reduced onto Bi2MoO6 not only spurs the photo-generated electron and hole separation owing to the Schottky junction at the interface of Bi and Bi2MoO6 but also promotes N2 adsorption and activation at Bi active sites synchronously. As a result, the yield of the photocatalytic N2-to-ammonia conversion reaches up to 173.40 μmol g-1 on core-shell Bi@Bi2MoO6 photocatalysts, as much as two times of that of bare Bi2MoO6. This work provides a new design for the decarbonization of the nitrogen reduction reaction by the utilization of renewable energy sources.
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Affiliation(s)
- Meijiao Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (M.W.); (G.W.); (R.L.); (M.Y.)
| | - Guosong Wei
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (M.W.); (G.W.); (R.L.); (M.Y.)
| | - Renjie Li
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (M.W.); (G.W.); (R.L.); (M.Y.)
| | - Meng Yu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (M.W.); (G.W.); (R.L.); (M.Y.)
| | - Guangbo Liu
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Yanhua Peng
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (M.W.); (G.W.); (R.L.); (M.Y.)
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Liu Y, Liu G, Zeng B, Li Y, Chen L, Zhao J. 2,5-Thiophenedicarboxylic Acid Bridging Hexameric Ce III-Substituted Selenotungstate and Its Application for Detecting Mucin 1. Inorg Chem 2024; 63:7858-7868. [PMID: 38634470 DOI: 10.1021/acs.inorgchem.4c00501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
The development of polyoxometalate chemistry not only is derived from the continuous discovery of novel polyoxometalates (POMs) but also stems from the exploitation of their new functionalities. In this work, we obtained a rigid sulfur-containing heterocyclic ligand-linking aggregate [N(CH3)4]10Na6H6[Ce8(H2O)26W8(HTDA)2(TDA)2O20][SeW4O18]2[SeW9O33]4·112H2O (1) (H2TDA = 2,5-thiophenedicarboxylic acid). Its polyanionic unit consists of one [Ce4(H2O)13W4O10(HTDA)(TDA)O10]18+ cluster and two kinds of Keggin-type [SeW4O18] and [SeW9O33] segments. It is noteworthy that H2TDA ligands not only work as connectors to link two symmetrical {[Ce4(H2O)13W4(HTDA)(TDA)O10][SeW4O18][SeW9O33]2}11- units but also function as ornaments to graft to the polyanionic backbone. Furthermore, 1 and 3,4-ethylenedioxythiophene (EDOT) were deposited on the glassy carbon electrode (GCE) by the electropolymerization (EPM) method, resulting in a 1-poly(3,4-ethylenedioxythiophene) (1-PEDOT) composite film, which can provide sufficient binding sites to immobilize Au nanoparticles (Au NPs). Hereafter, the Au NPs-immobilized 1-PEDOT modified electrode (Au/1-PEDOT/GCE) was used to construct an electrochemical aptasensor to detect mucin 1, showing a low detection limit of 29.5 fM in the Tris solution. This work not only demonstrates that rigid heterocyclic ligands are beneficial for the creation of novel rare-earth-substituted selenotungstate hybrids but also provides more enlightenment for POM-based materials used for electrochemical detection of cancer markers.
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Affiliation(s)
- Yu Liu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Guoping Liu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Baoxing Zeng
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Yanzhou Li
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Lijuan Chen
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Junwei Zhao
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan 475004, China
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He P, Ran L, Li C, Wang W, Zhang C, Ma R, Li Y, Zhang Y, Deng L, Yan J. Drawing Inspiration from Nature: Trinitarian Strategies for Designing Polyoxometalates and Metal-Organic Framework-Based Biomimetic Microhoneycomb Electromagnetic Wave-Absorbing Materials. Inorg Chem 2024; 63:1613-1624. [PMID: 38195398 DOI: 10.1021/acs.inorgchem.3c03767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Trinitarian designs in the morphology, components, and microstructure remain challenging for advanced electromagnetic wave absorption (EMWA) materials with light weight, strong absorption, and well-defined structure-function relationships. Herein, a series of X-doped MoS2/Cu9S5 with multilevel honeycomb structures (X-MoS2/Cu9S5 MHs, X = P, Si, Ge) were designed by space-confined growth and in situ sulfidation of a polyoxometalate-based metal-organic framework. X-MoS2/Cu9S5 MHs possess low density, high surface area, and abundant cation-cuprum and anion-sulfur double vacancies (VCu and VS) simultaneously that are unmatched by conventional EMWA materials. Also, the systematic investigation of the doping effect of various polyoxometalate heteroatoms on VCu and VS in the microhoneycomb has been conducted. Experimental results and density functional theory calculations reveal that the excellent EMWA performance (-56.21 dB) results from the synergistic effect of morphology design, component optimization, and vacancy regulation. This study not only provides an important opportunity to understand a morphology-component-microstructure strategy in electromagnetic wave absorption but also builds a noteworthy bridge between bioinspired engineering and microscale absorbers.
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Affiliation(s)
- Peng He
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Ling Ran
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Chen Li
- Institute of Super-Microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, Changsha 410083, P. R. China
| | - Weiwei Wang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Chi Zhang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Runze Ma
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Yani Li
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Yushan Zhang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Lianwen Deng
- Institute of Super-Microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, Changsha 410083, P. R. China
| | - Jun Yan
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
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10
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Li FR, Ji T, Chen WC, Du W, Hao YJ, Sun YL, Chen WL. Photosynthetic System Based on a Polyoxometalate-Based Dehydrated Metal-Organic Framework for Nitrogen Fixation. Inorg Chem 2024; 63:593-601. [PMID: 38103019 DOI: 10.1021/acs.inorgchem.3c03472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
In nature, biological nitrogen fixation is accomplished through the π-back-bonding mechanism of nitrogenase, which poses significant challenges for mimic artificial systems, thanks to the activation barrier associated with the N≡N bond. Consequently, this motivates us to develop efficient and reusable photocatalysts for artificial nitrogen fixation under mild conditions. We employ a charge-assisted self-assembly process toward encapsulating one polyoxometalate (POM) within a dehydrated Zr-based metal-organic framework (d-UiO-66) exhibiting nitrogen photofixation activities, thereby constructing an enzyme-mimicking photocatalyst. The dehydration of d-UiO-66 is favorable for facilitating nitrogen chemisorption and activation via the unpaired d-orbital electron at the [Zr6O6] cluster. The incorporation of POM guests enhanced the charge separation in the composites, thereby facilitating the transfer of photoexcited electrons into the π* antibonding orbital of chemisorbed N2 for efficient nitrogen fixation. Simultaneously, the catalytic efficiency of SiW9Fe3@d-UiO-66 is enhanced by 9.0 times compared to that of d-UiO-66. Moreover, SiW9Fe3@d-UiO-66 exhibits an apparent quantum efficiency (AQE) of 0.254% at 550 nm. The tactics of "working-in-tandem" achieved by POMs and d-UiO-66 are extremely vital for enhancing artificial ammonia synthesis. This study presents a paradigm for the development of an efficient artificial catalyst for nitrogen photofixation, aiming to mimic the process of biological nitrogen fixation.
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Affiliation(s)
- Feng-Rui Li
- Department of Applied Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Tuo Ji
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Wei-Chao Chen
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Wei Du
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Yi-Jia Hao
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Yan-Li Sun
- Harbin No.13 High School, Harbin 150000, China
| | - Wei-Lin Chen
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
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