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Chen M, Wu Y, Wan Q, Lin S. Theoretical Study of p-Block Metal Single-Atom-Loaded Carbon Nitride Catalyst for Photocatalytic Water Splitting. Molecules 2024; 29:2030. [PMID: 38731520 PMCID: PMC11085354 DOI: 10.3390/molecules29092030] [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: 04/10/2024] [Revised: 04/25/2024] [Accepted: 04/26/2024] [Indexed: 05/13/2024] Open
Abstract
Graphitic carbon nitride (g-C3N4), recognized for its considerable potential as a heterogeneous photocatalyst in water splitting, has attracted extensive research interest. By using density functional theory (DFT) calculations, the regulatory role of p-block metal (PM) single atoms on the photocatalytic activity of g-C3N4 in overall water splitting was systematically explored. The incorporation of PM atoms (Ge, Sn and Pb) led to a reduction in the overpotentials required for both the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER). Combined with the electronic structures analysis via hybrid functional, it was found that the introduction of Ge, Sn or Pb optimizes the positions of the valence band maximum (VBM) and the conduction band minimum (CBM), providing a robust driving force for HER and ensuring substantial driving force for OER. Meanwhile, the presence of these three PMs induces the spatial separation of VBM and CBM, inhibiting the recombination of carriers. These findings have significant implications for the design and preparation of efficient photocatalysts.
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Affiliation(s)
- Mengning Chen
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350116, China; (M.C.); (Y.W.)
| | - Yidi Wu
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350116, China; (M.C.); (Y.W.)
| | - Qiang Wan
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Sen Lin
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350116, China; (M.C.); (Y.W.)
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2
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Parmar PR, Khengar SJ, Sonvane Y, Thakor PB. Enhanced photocatalytic performance of a stable type-II PtSe 2/GaSe van der Waals heterostructure. Phys Chem Chem Phys 2023; 25:22258-22274. [PMID: 37577832 DOI: 10.1039/d3cp01338c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
In this investigation, the structural, electronic, and optical properties of two-dimensional van der Waals heterostructure (vdwHS) PtSe2/GaSe with three different configurations have been studied using density functional theory with the generalized gradient approximation. All three optimized vdwHSs PtSe2/GaSe have positive phonon frequencies and hexagonal unit cells. The hybrid exchange-correlation functional has been employed to study the electronic properties of vdwHSs PtSe2/GaSe. The vdwHSs PtSe2/GaSe shows semiconducting behavior with indirect Type-II bandgaps, which have been confirmed by the charge density difference, electrostatic potential, work function, and band edge calculations. Additionally, from the band edge positions, the vdwHSs PtSe2/GaSe are analyzed for photocatalytic activities. The optical properties such as extinction coefficient, refractive index, reflectivity, energy loss spectrum, and absorption coefficient have been studied using norm-conserving pseudo-potentials. The vdwHSs PtSe2/GaSe exhibit consistent absorption from the visible to the ultraviolet region of the electromagnetic spectrum. From the obtained results, we conclude that vdwHSs PtSe2/GaSe could be utilized for H2 production through photocatalytic activity as well as for optoelectronic devices and their application.
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Affiliation(s)
- P R Parmar
- Department of Physics, Veer Narmad South Gujarat University, Surat 395007, India.
| | - S J Khengar
- Department of Physics, Veer Narmad South Gujarat University, Surat 395007, India.
| | - Yogesh Sonvane
- Advance Material Lab, Department of Physics, Sardar Vallabhbhai National Institute of Technology, Surat 395007, India.
| | - P B Thakor
- Department of Physics, Veer Narmad South Gujarat University, Surat 395007, India.
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3
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Niu X, Zhang X, Shi A, Sun D, Chen D, Zhang L, Huang J, Liu L, Wang B, Zhang X. The regulating effect of boron doping and its concentration on the photocatalytic overall water splitting of a polarized g-C 3N 5 material. Phys Chem Chem Phys 2023; 25:8592-8599. [PMID: 36883966 DOI: 10.1039/d2cp05247d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Photocatalytic overall water splitting with two-dimensional materials is a promising strategy to solve the problems of environmental pollution and energy shortage. However, conventional photocatalysts are often limited to a narrow visible photo-absorption range, low catalytic activity, and poor charge separation. Herein, given the intrinsic polarization facilitating the improvement of photogenerated carrier separation, we adopt a polarized g-C3N5 material combining the doping strategy to alleviate the abovementioned problems. Boron (B), as a Lewis acid, has a great chance to improve the capture and catalytic activity of water. By doping B into g-C3N5, the overpotential for the complicated four-electron process of the oxygen reduction reaction is only 0.50 V. Simultaneously, the B doping-induced impurity state effectively reduces the band gap and broadens the photo-absorption range. Moreover, with the increase of B doping concentration, the photo-absorption range and catalytic activity can be gradually improved. Whereas when the concentration exceeds 33.3%, the reduction potential of the conduction band edge will not meet the demand for hydrogen evolution. Therefore, excessive doping is not recommended in experiments. Our work affords not only a promising photocatalyst but also a practical design scheme by combining polarizing materials and the doping strategy for overall water splitting.
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Affiliation(s)
- Xianghong Niu
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Xuemei Zhang
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Anqi Shi
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Dazhong Sun
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Dingbang Chen
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Lu Zhang
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Jialin Huang
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Liqing Liu
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Bing Wang
- Institute for Computational Materials Science, Joint Center for Theoretical Physics (JCTP), School of Physics and Electronics, Henan University, Kaifeng, 475004, China
| | - Xiuyun Zhang
- College of Physics Science and Technology, Yangzhou University, Yangzhou 225002, China
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4
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Singh PP, Srivastava V. Recent advances in visible-light graphitic carbon nitride (g-C 3N 4) photocatalysts for chemical transformations. RSC Adv 2022; 12:18245-18265. [PMID: 35800311 PMCID: PMC9210974 DOI: 10.1039/d2ra01797k] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 06/04/2022] [Indexed: 01/02/2023] Open
Abstract
Graphitic carbon nitride (g-C3N4) has emerged as a new research hotspot, attracting broad interdisciplinary attention in the form of metal-free and visible-light-responsive photocatalysts in the field of solar energy conversion and environmental remediation. These photocatalysts have evolved as attractive candidates due to their non-toxicity, chemical stability, efficient light absorption capacity in the visible and near-infrared regions, and adaptability as a platform for the fabrication of hybrid materials. This review mainly describes the latest advances in g-C3N4 photocatalysts for chemical transformations. In addition, the typical applications of g-C3N4-based photocatalysts involving organic transformation reactions are discussed (synthesis of heterocycles, hydrosulfonylation, hydration, oxygenation, arylation, coupling reactions, etc.).
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Affiliation(s)
- Praveen P Singh
- Department of Chemistry, United College of Engineering & Research Naini Prayagraj 211010 India
| | - Vishal Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad Prayagraj 211002 India
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5
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Li J, Yang R, Hu D, Xu Y, Ma Z. Efficient bacterial inactivation with S-doped g-C 3N 4 nanosheets under visible light irradiation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:34637-34650. [PMID: 35040064 DOI: 10.1007/s11356-021-18092-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 12/09/2021] [Indexed: 06/14/2023]
Abstract
The pathogenic bacteria in water that threatens the human health and photocatalytic disinfection have been proven to be a cost-effective and promising green technology. It is significant and necessary to develop efficient, safe, and visible light-driven photocatalysts. In this study, Escherichia coli was used as model bacterium and the disinfection performance of prepared S-doped g-C3N4 nanosheets (S-CNNs) under visible light was investigated. The results showed that the synergistic effects of S doping and the unique 2D structure of S-CNNs enhanced the visible light absorption, enlarged the specific surface area and reduced the recombination of photogenerated charge carriers which is beneficial for promoting the photocatalytic disinfection of the E. coli. Scavenger experiments indicated •O2- and h+ were the predominant reactive species in the photocatalytic disinfection process. In addition, the kinetics of disinfection activity were fitted by the modified Hom model and the k2 value of S-CNNs is 0.0219 min-1, which is much higher than that of the bulk g-C3N4 (CN). This work has demonstrated efficient bacterial inactivation with S-CNNs under visible light irradiation.
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Affiliation(s)
- Juan Li
- School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, 471023, P. R, China
| | - Ruixian Yang
- School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, 471023, P. R, China
| | - DanDan Hu
- School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, 471023, P. R, China
| | - Yanchong Xu
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471000, P. R, China
| | - Zhanqiang Ma
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471000, P. R, China.
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6
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Facile synthesis of ZrO2-Bi2O2(CO)3 composite materials prepared in one-pot synthesis for high photoactivity in efficient hydrogen production. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113594] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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The InSe/g-CN van der Waals hybrid heterojunction as a photocatalyst for water splitting driven by visible light. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.07.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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8
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Zhang WX, Yin Y, He C. P Doping Promotes the Spontaneous Visible-Light-Driven Photocatalytic Water Splitting in Isomorphic Type II GaSe/InS Heterostructure. J Phys Chem Lett 2021; 12:7892-7900. [PMID: 34382815 DOI: 10.1021/acs.jpclett.1c02040] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The development and design of clean and efficient water splitting photocatalysts is important for the current situation of energy shortage and environmental pollution. A new type of isomorphic GaSe/InS heterostructure is constructed, and the optoelectronic properties were studied through first-principles calculations. The results show that GaSe/InS vdW heterostructure is a type II semiconductor with a band gap of 2.09 eV. However, through the analysis of the energy band edge position and Gibbs free energy change of water splitting, it is found that the GaSe/InS heterostructure is difficult to undergo overall water splitting. Therefore, nonmetallic element P doping is considered, the established P-doped GaSe/InS (P-GaSe/InS) heterostructure could maintain the type II band arrangement, and under acidic conditions, P-GaSe/InS heterostructure could spontaneously undergo overall water splitting thermodynamically. Furthermore, the low exciton binding energy of P-GaSe/InS heterostructure highlights better light absorption performance. Therefore, these findings indicate that P-GaSe/InS heterostructure is a promising photocatalyst in overall water splitting.
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Affiliation(s)
- W X Zhang
- School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
| | - Y Yin
- School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
| | - C He
- State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
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9
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Construction of an arsenene/g-C3N4 hybrid heterostructure towards enhancing photocatalytic activity of overall water splitting: A first-principles study. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122138] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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10
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Liu X, Ma R, Zhuang L, Hu B, Chen J, Liu X, Wang X. Recent developments of doped g-C 3N 4 photocatalysts for the degradation of organic pollutants. CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY 2021; 51:751-790. [DOI: doi.org/10.1080/10643389.2020.1734433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/25/2023]
Affiliation(s)
- Xiaolu Liu
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, P. R. China
- School of Life Science, Shaoxing University, Shaoxing, P. R. China
| | - Ran Ma
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, P. R. China
| | - Li Zhuang
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, P. R. China
| | - Baowei Hu
- School of Life Science, Shaoxing University, Shaoxing, P. R. China
| | - Jianrong Chen
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, P. R. China
| | - Xiaoyan Liu
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, P. R. China
| | - Xiangke Wang
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, P. R. China
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, P. R. China
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11
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Guo Y, Xia M, Zhang M, Zou J, You Y, Cheng W, Dou J. A strategy for enhancing the photoactivity of g-C 3N 4-based single-atom catalysts via sulphur doping: a theoretical study. Phys Chem Chem Phys 2021; 23:6632-6640. [PMID: 33709091 DOI: 10.1039/d1cp00192b] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Single-atom catalysts (SACs) have received intense attention owing to their maximum utilization efficiency of metal atoms and high catalytic activity. Although SACs possess many merits, such as high activity, selectivity and stability in photocatalysis, the difficulty of fabricating atomically dispersed atom catalysts with a high level of metal loading limits their practical applications. Here, a sulphur-doping strategy was proposed to enhance the incorporation of single Pt atoms in monolayer graphitic carbon nitride (g-C3N4), and the structural, electronic and optical properties were investigated through density functional theory (DFT) calculations. This work verified that SACs based on sulphur-doped monolayer g-C3N4 (S-g-C3N4) exhibit a lower band gap energy, higher photocatalytic oxidation ability, easier charge separation, lower oxidation state of Pt atoms and wider light absorption range. This work provides a promising path for fabricating efficient g-C3N4-based photocatalytic SACs.
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Affiliation(s)
- Yanqing Guo
- College of Water Sciences, Beijing Normal University, Beijing 100875, China.
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12
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Li Y, Wang Y, Dong CL, Huang YC, Chen J, Zhang Z, Meng F, Zhang Q, Huangfu Y, Zhao D, Gu L, Shen S. Single-atom nickel terminating sp 2 and sp 3 nitride in polymeric carbon nitride for visible-light photocatalytic overall water splitting. Chem Sci 2021; 12:3633-3643. [PMID: 34163637 PMCID: PMC8179473 DOI: 10.1039/d0sc07093a] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Polymeric carbon nitride (PCN) has been widely used as a metal-free photocatalyst for solar hydrogen generation from water. However, rapid charge carrier recombination and sluggish water catalysis kinetics have greatly limited its photocatalytic performance for overall water splitting. Herein, a single-atom Ni terminating agent was introduced to coordinate with the heptazine units of PCN to create new hybrid orbitals. Both theoretical calculation and experimental evidence revealed that the new hybrid orbitals synergistically broadened visible light absorption via a metal-to-ligand charge transfer (MLCT) process, and accelerated the separation and transfer of photoexcited electrons and holes. The obtained single-atom Ni terminated PCN (PCNNi), without an additional cocatalyst loading, realized efficient photocatalytic overall water splitting into easily-separated gas-product H2 and liquid-product H2O2 under visible light, with evolution rates reaching 26.6 and 24.0 μmol g−1 h−1, respectively. It was indicated that single-atom Ni and the neighboring C atom served as water oxidation and reduction active sites, respectively, for overall water splitting via a two-electron reaction pathway. Single-atom Ni terminating agent is introduced to coordinate with sp2 or sp3 N atoms in the heptazine units of PCN, realizing visible-light photocatalytic overall water splitting to H2O2 and H2 without additional cocatalyst.![]()
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Affiliation(s)
- Yanrui Li
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University Xi'an 710049 China
| | - Yiqing Wang
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University Xi'an 710049 China
| | - Chung-Li Dong
- Department of Physics, Tamkang University 151 Yingzhuan Rd New Taipei City 25137 Taiwan
| | - Yu-Cheng Huang
- Department of Physics, Tamkang University 151 Yingzhuan Rd New Taipei City 25137 Taiwan
| | - Jie Chen
- Division of Physical Science and Engineering, King Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
| | - Zhen Zhang
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University Xi'an 710049 China
| | - Fanqi Meng
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences Beijing 100190 China
| | - Qinghua Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences Beijing 100190 China
| | - Yiliang Huangfu
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University Xi'an 710049 China
| | - Daming Zhao
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University Xi'an 710049 China
| | - Lin Gu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences Beijing 100190 China
| | - Shaohua Shen
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University Xi'an 710049 China
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13
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Zhu B, Zhang L, Cheng B, Yu Y, Yu J. H2O molecule adsorption on s-triazine-based g-C3N4. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63598-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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A computational survey of metal-free polyimide-based photocatalysts within the single-stranded polymer model. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Ai C, Li J, Yang L, Wang Z, Wang Z, Zeng Y, Deng R, Lin S, Wang CZ. Transforming Photocatalytic g-C 3 N 4 /MoSe 2 into a Direct Z-Scheme System via Boron-Doping: A Hybrid DFT Study. CHEMSUSCHEM 2020; 13:4985-4993. [PMID: 32671990 DOI: 10.1002/cssc.202001048] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/20/2020] [Indexed: 06/11/2023]
Abstract
Z-scheme photocatalytic systems are an ideal band alignment structure for photocatalysis because of the high separation efficiency of photo-induced carriers while simultaneously preserving the strong reduction activity of electrons and oxidation activity of holes. However, the design and construction of Z-scheme photocatalysts is challenging because of the need for appropriate energy band alignment and built-in electric field. Here, we propose a novel approach to a Z-scheme photocatalytic system using density functional theory calculations with the HSE06 hybrid functional. The undesirable type-I g-C3 N4 /MoSe2 heterojunction is transformed into a direct Z-scheme system through boron doping of g-C3 N4 (B-doped C3 N4 /MoSe2 ). Detailed analysis of the total and partial density of states, work functions and differential charge density distribution of the B-doped C3 N4 /MoSe2 heterojunction shows the proper band alignment and existence of a built-in electric field at the interface, with the direction from g-C3 N4 to MoSe2 , demonstrating a direct Z-scheme heterojunction. Further investigation on the absorption spectra reveals a large enhancement of the light absorption efficiency after boron doping. The results consistently confirm that electronic structures and photocatalytic performance can be effectively manipulated by a facile boron doping. Modulating the band alignment of heterojunctions in this way provides valuable insights for the rational design of highly efficient heterojunction-based photocatalytic systems.
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Affiliation(s)
- Changzhi Ai
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Jin Li
- School of Science, Hainan University, Haikou, 570228, P. R. China
| | - Liang Yang
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Zhipeng Wang
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Zhao Wang
- School of Science, Hainan University, Haikou, 570228, P. R. China
| | - Yamei Zeng
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Rong Deng
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Shiwei Lin
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Cai-Zhuang Wang
- Ames Laboratory-U. S. Department of Energy, and Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA
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16
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Montgomery MJ, Sugak NV, Yang KR, Rogers JM, Kube SA, Ratinov AC, Schroers J, Batista VS, Pfefferle LD. Semiconductor-to-conductor transition in 2D copper(ii) oxide nanosheets through surface sulfur-functionalization. NANOSCALE 2020; 12:14549-14559. [PMID: 32613999 DOI: 10.1039/d0nr02208j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Functionalization is a widely-used strategy to modulate and optimize the properties of materials towards various applications, including sensing, catalysis, and energy generation. While the influence of sulfur-functionalization of carbon materials and oxides like ZnO and TiO2 has been studied, far less research has been devoted to analyzing sulfur-functionalization of CuO and other transition metal oxide nanomaterials. Here, we report sulfur-functionalization of copper(ii) oxide nanosheets synthesized by using a soft-templating procedure, with sulfur-addition based on hydrogen sulfide gas as a source. The resulting sulfur-functionalization does not change the overall crystal structure and morphology of the CuO nanosheets, but leads to a decrease in surface hydroxyl groups. Sulfur induces a semiconductor-to-conductor state transition of the CuO nanosheets, which is supported by computational modeling. The metallic transition results from shifting of the Fermi level into the valence band due to formation of Cu-S bonds on the surface of the CuO nanosheets.
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Affiliation(s)
- Matthew J Montgomery
- Department of Chemical and Environmental Engineering, Yale University, PO Box 208286, New Haven, CT, USA
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17
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Mansingh S, Kandi D, Das KK, Parida K. A Mechanistic Approach on Oxygen Vacancy-Engineered CeO 2 Nanosheets Concocts over an Oyster Shell Manifesting Robust Photocatalytic Activity toward Water Oxidation. ACS OMEGA 2020; 5:9789-9805. [PMID: 32391466 PMCID: PMC7203704 DOI: 10.1021/acsomega.9b04420] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 02/25/2020] [Indexed: 05/04/2023]
Abstract
Lethargic kinetics is the foremost bottleneck of the photocatalytic water oxidation reaction. Hence, in this respect, the CeO2 coral reef made up of nanosheets is studied focusing on the oxygen vacancy that affects the water oxidation reaction. First, CeO2 was prepared in an oyster shell/crucible with the presence/absence of urea by a simple calcination technique to tune the oxygen vacancy. More oxygen vacancy was detected in CeO2 prepared from urea and oyster shell, which is evidenced from Raman and PL analyses. Further, the oyster shell-treated sample was found to be of nanosheet type with numerous pores as observed via TEM analysis. The theoretical approach was adopted to expose the role of oxygen vacancies and the fate of scavenging agents in the water oxidation mechanism. It was observed that an oxygen vacancy plays a vital role in minimizing the activation energy hump and opposes the reverse reaction. The apparent conversion efficiency of 7.1% is calculated for the oxygen evolution reaction. Oxygen vacancy, quantum confinement effect, and charge separation efficiency are mainly responsible for the better photocatalyzed water oxidation reaction and hydroxyl radical production. This investigation will help in providing valuable information toward designing cost-effective oxygen vacancy-oriented nanosheet systems and the importance of vacancy in the water-splitting reaction.
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18
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DFT study of interaction between HCHO molecule and tri-s-triazine g-C3N4 surface. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2019.110718] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Praus P, Smýkalová A, Foniok K, Velíšek P, Cvejn D, Žádný J, Storch J. Post-Synthetic Derivatization of Graphitic Carbon Nitride with Methanesulfonyl Chloride: Synthesis, Characterization and Photocatalysis. NANOMATERIALS 2020; 10:nano10020193. [PMID: 31979003 PMCID: PMC7074974 DOI: 10.3390/nano10020193] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 01/19/2020] [Accepted: 01/20/2020] [Indexed: 11/16/2022]
Abstract
Bulk graphitic carbon nitride (CN) was synthetized by heating of melamine at 550 °C, and the exfoliated CN (ExCN) was prepared by heating of CN at 500 °C. Sulfur-doped CN was synthesized by heating of thiourea (S-CN) and by a novel procedure based on the post-synthetic derivatization of CN with methanesulfonyl (CH3SO2−) chloride (Mes-CN and Mes-ExCN). The obtained nanomaterials were investigated by common characterization methods and their photocatalytic activity was tested by means of the decomposition of acetic orange 7 (AO7) under ultraviolet A (UVA) irradiation. The content of sulfur in the modified CN decreased in the sequence of Mes-ExCN > Mes-CN > S-CN. The absorption of light decreased in the opposite manner, but no influence on the band gap energies was observed. The methanesulfonyl (mesyl) groups connected to primary and secondary amine groups were confirmed by high resolution mass spectrometry (HRMS). The photocatalytic activity decreased in the sequence of Mes-ExCN > ExCN > CN ≈ Mes-CN > S-CN. The highest activity of Mes-ExCN and ExCN was explained by the highest amounts of adsorbed Acetic Orange 7 (AO7). In addition, in the case of Mes-ExCN, chloride ions incorporated in the CN lattice enhanced the photocatalytic activity as well.
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Affiliation(s)
- Petr Praus
- Department of Chemistry, VŠB-Technical University of Ostrava, 700 80 Ostrava, Czech Republic; (A.S.); (K.F.)
- Institute of Environmental Technology, VŠB-Technical University of Ostrava, 708 00 Ostrava, Czech Republic
- Correspondence: (P.P.); (J.Ž.); Tel.: +420-59-732-1625 (P.P.); +420-220-390-236 (J.Ž.)
| | - Aneta Smýkalová
- Department of Chemistry, VŠB-Technical University of Ostrava, 700 80 Ostrava, Czech Republic; (A.S.); (K.F.)
- Institute of Environmental Technology, VŠB-Technical University of Ostrava, 708 00 Ostrava, Czech Republic
| | - Kryštof Foniok
- Department of Chemistry, VŠB-Technical University of Ostrava, 700 80 Ostrava, Czech Republic; (A.S.); (K.F.)
- Institute of Environmental Technology, VŠB-Technical University of Ostrava, 708 00 Ostrava, Czech Republic
| | - Petr Velíšek
- Department of Advanced Nanomaterials and Organic Synthesis, Institute of Chemical Process Fundamentals, v.v.i., Czech Academy of Sciences, Rozvojová 1/135, 165 02 Prague 6, Czech Republic; (P.V.); (J.S.)
| | - Daniel Cvejn
- ENET Centre, VŠB-Technical University of Ostrava, 708 00 Ostrava, Czech Republic;
| | - Jaroslav Žádný
- Department of Advanced Nanomaterials and Organic Synthesis, Institute of Chemical Process Fundamentals, v.v.i., Czech Academy of Sciences, Rozvojová 1/135, 165 02 Prague 6, Czech Republic; (P.V.); (J.S.)
- Correspondence: (P.P.); (J.Ž.); Tel.: +420-59-732-1625 (P.P.); +420-220-390-236 (J.Ž.)
| | - Jan Storch
- Department of Advanced Nanomaterials and Organic Synthesis, Institute of Chemical Process Fundamentals, v.v.i., Czech Academy of Sciences, Rozvojová 1/135, 165 02 Prague 6, Czech Republic; (P.V.); (J.S.)
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Qi S, Fan Y, Wang J, Song X, Li W, Zhao M. Metal-free highly efficient photocatalysts for overall water splitting: C 3N 5 multilayers. NANOSCALE 2020; 12:306-315. [PMID: 31825061 DOI: 10.1039/c9nr08416a] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
As a promising means of renewable energy storage, the production of molecular hydrogen and oxygen from photocatalytic water splitting has gained increasing interest. The optimal photocatalyst for water splitting should have high solar energy conversion efficiency and strong photocatalytic redox ability to drive the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). However, few photocatalysts have been reported to fulfil these two contradictive requirements. Here, we demonstrated from first-principles calculations that the recently synthesized two-dimensional carbon nitride (C3N5) multilayers can serve as promising candidates to reach this goal. The intrinsic electric field which is more pronounced in the multilayers alters the band alignment of the photocatalysts, making the HER and OER be driven solely by the photogenerated carriers. The thickness-dependent electronic band gap (2.95-2.16 eV) along with the high carrier mobility broadens the energy range of light absorption and promotes carrier separation and transfer, leading to high solar energy conversion efficiency. Our computational results offer not only low-cost, Earth-abundant and environmentally friendly photocatalysts but also a promising strategy for the design of photocatalysts for highly efficient overall water splitting without using sacrificial reagents.
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Affiliation(s)
- Siyun Qi
- School of Physics and State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, China.
| | - Yingcai Fan
- School of Physics and State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, China.
| | - Junru Wang
- School of Physics and State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, China.
| | - Xiaohan Song
- School of Physics and State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, China.
| | - Weifeng Li
- School of Physics and State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, China.
| | - Mingwen Zhao
- School of Physics and State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, China.
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21
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Xu J, Wan Q, Wang Z, Lin S. The band structure engineering of fluorine-passivated graphdiyne nanoribbons via doping with BN pairs for overall photocatalytic water splitting. Phys Chem Chem Phys 2020; 22:26995-27001. [PMID: 33210673 DOI: 10.1039/d0cp05308b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
In this work, we systematically study the electronic band structures of fluorine-passivated graphdiyne nanoribbons (F_GDYNRs) doped with BN pairs using first-principles density functional theory calculations. The calculation results show that that fluorine passivation and heteroatom doping play different roles in modifying the electronic structures of F_GDYNRs. The former helps lower the position of the valence band of the graphdiyne nanoribbons (GDYNRs) while the latter significantly opens the band gap of GDYNRs. The doped F_GDYNRs have direct band gaps of 1.8-2.9 eV, and their valence and conduction bands perfectly straddle both the oxidation and reduction potential of water. This work demonstrates that F_GDYNRs, via doping with BN pairs, possess high catalytic activity for water splitting, which will shed light on the design of metal-free low-dimensional photocatalysts.
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Affiliation(s)
- Junkang Xu
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, China.
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22
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He C, Zhang JH, Zhang WX, Li TT. Type-II InSe/ g-C 3N 4 Heterostructure as a High-Efficiency Oxygen Evolution Reaction Catalyst for Photoelectrochemical Water Splitting. J Phys Chem Lett 2019; 10:3122-3128. [PMID: 31117679 DOI: 10.1021/acs.jpclett.9b00909] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We propose a conceptual design of InSe/ g-C3N4 van der Waals heterostructure to achieve highly efficient and spontaneous water splitting. InSe/ g-C3N4 possesses a direct band gap of 2.04 eV with type-II band alignment, which is beneficial to the separation of electrons and holes and exhibits proper valence and conduction-band positions for the redox reactions of H2O. In addition, the adsorption of multiple water molecules and the changes of free energy on InSe/ g-C3N4 have been calculated to understand the oxygen evolution reaction (OER) process of water splitting. The free energies of reaction on three sides are all downhill, and the values of Δ G reduce to about -0.406 eV, indicating that the OER of water splitting is a thermodynamically permissible reaction without the aid of any other substance. Therefore, the water-splitting reaction could be thermodynamically continued using InSe/ g-C3N4 as a photocatalyst, which indicates that InSe/ g-C3N4 is an excellent candidate for photocatalyst or photoelectronic applications.
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Affiliation(s)
- C He
- State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering , Xi'an Jiaotong University , Xi'an 710049 , China
| | - J H Zhang
- State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering , Xi'an Jiaotong University , Xi'an 710049 , China
| | - W X Zhang
- School of Materials Science and Engineering , Chang'an University , Xi'an 710064 , China
| | - T T Li
- State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering , Xi'an Jiaotong University , Xi'an 710049 , China
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23
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Zhang Y, Afzal N, Pan L, Zhang X, Zou J. Structure-Activity Relationship of Defective Metal-Based Photocatalysts for Water Splitting: Experimental and Theoretical Perspectives. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900053. [PMID: 31131201 PMCID: PMC6524102 DOI: 10.1002/advs.201900053] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 02/26/2019] [Indexed: 05/05/2023]
Abstract
Photocatalytic water splitting is promising for hydrogen energy production using solar energy and developing highly efficient photocatalysts is challenging. Defect engineering is proved to be a very useful strategy to promote the photocatalytic performance of metal-based photocatalysts, however, the vital role of defects is still ambiguous. This work comprehensively reviews point defective metal-based photocatalysts for water splitting, focusing on understanding the defects' disorder effect on optical adsorption, charge separation and migration, and surface reaction. The controllable synthesis and tuning strategies of defective structure to improve the photocatalytic performance are summarized, then the characterization techniques and density functional theory calculations are discussed to unveil the defect structure, and analyze the defects induced electronic structure change of catalysts and its ultimate effect on the photocatalytic activity at the molecular level. Finally, the challenge in developing more efficient defective metal-based photocatalysts is outlined. This work may help further the understanding of the fundamental role of defect structure in the photocatalytic reaction process and guide the rational design and fabrication of highly efficient and low-cost photocatalysts.
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Affiliation(s)
- Yong‐Chao Zhang
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
| | - Nisha Afzal
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
| | - Lun Pan
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
| | - Xiangwen Zhang
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
| | - Ji‐Jun Zou
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
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Extended π-conjugative n-p type homostructural graphitic carbon nitride for photodegradation and charge-storage applications. Sci Rep 2019; 9:7186. [PMID: 31076639 PMCID: PMC6510722 DOI: 10.1038/s41598-019-43312-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 04/09/2019] [Indexed: 11/08/2022] Open
Abstract
An n-p type homostructural metal-free graphitic carbon nitride (g-C3N4) semiconductor is designed and developed for pollutant abatement and energy storage application. The successful grafting of vibrio-like morphology-based g-C3N4 by 2, 5-Thiophenedicarboxylic acid (TDA) molecule and the development of amide-type linkage substantiated the prosperous uniting of g-C3N4 with organic TDA moiety is demonstrated. An extended π-conjugative TDA grafted g-C3N4 exhibited band gap tunability with broadband optical absorbance in the visible region. Mott-Schottky analysis exhibited the formation of n-p type homostructural property. As a result, obtained TDA grafted g-C3N4 has extended π-conjugation, high surface area and adequate separation of charge carriers. The change in the photocatalytic performance of grafted g-C3N4 is inspected for degradation of acid violet 7 (AV 7) dye under visible light irradiation. The charge storage capacity of grafted g-C3N4 was additionally assessed for supercapacitive behaviour. The charge capacitive studies of grafted g-C3N4 exhibited the areal capacitance of 163.17 mF cm−2 and robust cyclic stability of 1000 cycles with capacity retention of 83%.
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25
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Liu H, Sun SC, Xu CY, Du Y, Ma FX, Zhen L. Salt-templated synthesis of Co9S8 nanoparticles anchored on N, S co-doped carbon nanosheets towards high-performance water oxidation. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.01.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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Wan Q, Wei F, Ma Z, Anpo M, Lin S. Novel Porous Boron Nitride Nanosheet with Carbon Doping: Potential Metal‐Free Photocatalyst for Visible‐Light‐Driven Overall Water Splitting. ADVANCED THEORY AND SIMULATIONS 2019. [DOI: 10.1002/adts.201800174] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qiang Wan
- State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou University Fuzhou 350002 China
| | - Fenfei Wei
- State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou University Fuzhou 350002 China
| | - Zuju Ma
- School of Materials Science and EngineeringAnhui University of Technology Maanshan 243002 China
| | - Masakazu Anpo
- State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou University Fuzhou 350002 China
- Department of Applied ChemistryGraduate School of EngineeringOsaka Prefecture University Sakai Osaka 599‐8531 Japan
| | - Sen Lin
- State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou University Fuzhou 350002 China
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27
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1,3,5-Benzenetriyl substituted g-C3N4 for enhanced visible light photocatalytic activity. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-018-03718-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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28
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Yang Y, Wang Y, Yao M, Wang X, Huang H. First-principles study of rocksalt early transition-metal carbides as potential catalysts for Li-O 2 batteries. Phys Chem Chem Phys 2018; 20:30231-30238. [PMID: 30500014 DOI: 10.1039/c8cp06745g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A series of early transition-metal carbides (TMCs) in the NaCl structure have been constructed to compare the catalytic activity in Li-O2 batteries by first-principles calculations. The reasonable interfacial models of LixO2 (x = 4, 2, and 1) molecules adsorbed on early TMCs surfaces were used to simulate oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) processes. Taking overpotentials as a merit parameter of catalytic activity, more relationships between material properties relative to the adsorption/desorption behavior of active molecules and catalytic activity are constructed for early TMCs. The equilibrium and charging potentials used to calculate the OER overpotentials of early TMCs are inversely proportional to the adsorption energies of (Li2O)2 and LiO2, respectively. The ORR overpotentials are inversely proportional to the adsorption energies of (Li2O)2 and LiO2 for early TMCs, but the relationship between OER overpotentials and the adsorption energies of reactive intermediates is unclear. Additionally, the overpotentials of early TMCs for ORR and OER are proportional to the desorption energies of Li+ and O2, respectively. In general, both the adsorption energy of (Li2O)2/LiO2 and desorption energy of Li+/O2 are effective characterization parameters of catalytic activity. By providing the comprehensive valuable parameters on electrochemical performance to compare the catalytic activity of early TMCs and establishing more correlations between material properties relative to the adsorption/desorption behavior of active molecules with their catalytic activity, our investigation is helpful for knowing more about the catalytic process and beneficial to screen and design novel highly active catalysts for Li-O2 batteries.
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Affiliation(s)
- Yingying Yang
- School of Materials Science and Engineering, Dalian University of Technology, Dalian 116085, China.
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29
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Sudhaik A, Raizada P, Shandilya P, Jeong DY, Lim JH, Singh P. Review on fabrication of graphitic carbon nitride based efficient nanocomposites for photodegradation of aqueous phase organic pollutants. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.07.007] [Citation(s) in RCA: 230] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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30
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Fabrication of B doped g-C3N4/TiO2 heterojunction for efficient photoelectrochemical water oxidation. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.06.090] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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31
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Qi Y, Liang Q, Lv R, Shen W, Kang F, Huang ZH. Synthesis and photocatalytic activity of mesoporous g-C 3N 4/MoS 2 hybrid catalysts. ROYAL SOCIETY OPEN SCIENCE 2018; 5:180187. [PMID: 29892453 PMCID: PMC5990742 DOI: 10.1098/rsos.180187] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 03/28/2018] [Indexed: 05/14/2023]
Abstract
The key to solving environmental and energy issues through photocatalytic technology requires highly efficient, stable and eco-friendly photocatalysts. Graphitic carbon nitride (g-C3N4) is one of the most promising candidates except for its limited photoactivity. In this work, a facile and scalable one-step method is developed to fabricate an efficient heterostructural g-C3N4 photocatalyst in situ coupled with MoS2. The strong coupling effect between the MoS2 nanosheets and g-C3N4 scaffold, numerous mesopores and enlarged specific surface area helped form an effective heterojunction. As such, the photocatalytic activity of the g-C3N4/MoS2 is more than three times higher than that of the pure g-C3N4 in the degradation of RhB under visible light irradiation. Improvement of g-C3N4/MoS2 photocatalytic performance is mainly ascribed to the effective suppression of the recombination of charge carriers.
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Affiliation(s)
- Yirong Qi
- State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, People's Republic of China
| | - Qinghua Liang
- State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, People's Republic of China
| | - Ruitao Lv
- State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, People's Republic of China
- Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing 100084, People's Republic of China
| | - Wanci Shen
- State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, People's Republic of China
- Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing 100084, People's Republic of China
| | - Feiyu Kang
- State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, People's Republic of China
- Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing 100084, People's Republic of China
| | - Zheng-Hong Huang
- State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, People's Republic of China
- Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing 100084, People's Republic of China
- Author for correspondence: Zheng-Hong Huang e-mail:
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Wang S, Feng Y, Yu M, Wan Q, Lin S. Confined Catalysis in the g-C 3N 4/Pt(111) Interface: Feasible Molecule Intercalation, Tunable Molecule-Metal Interaction, and Enhanced Reaction Activity of CO Oxidation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:33267-33273. [PMID: 28876886 DOI: 10.1021/acsami.7b08665] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The deposition of a two-dimensional (2D) atomic nanosheet on a metal surface has been considered as a new route for tuning the molecule-metal interaction and surface reactivity in terms of the confinement effect. In this work, we use first-principles calculations to systematically explore a novel nanospace constructed by placing a 2D graphitic carbon nitride (g-C3N4) nanosheet over a Pt(111) surface. The confined catalytic activity in this nanospace is investigated using CO oxidation as a model reaction. With the inherent triangular pores in the g-C3N4 overlayer being taken advantage of, molecules such as CO and O2 can diffuse to adsorb on the Pt(111) surface underneath the g-C3N4 overlayer. Moreover, the mechanism of intercalation is also elucidated, and the results reveal that the energy barrier depends mainly on the properties of the molecule and the channel. Importantly, the molecule-catalyst interaction can be tuned by the g-C3N4 overlayer, considerably reducing the adsorption energy of CO on Pt(111) and leading to enhanced reactivity in CO oxidation. This work will provide important insight for constructing a promising nanoreactor in which the following is observed: The molecule intercalation is facile; the molecule-metal interaction is efficiently tuned; the metal-catalyzed reaction is promoted.
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Affiliation(s)
- Shujiao Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University , Fuzhou 350002, China
| | - Yingxin Feng
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University , Fuzhou 350002, China
| | - Ming'an Yu
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University , Fuzhou 350002, China
| | - Qiang Wan
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University , Fuzhou 350002, China
| | - Sen Lin
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University , Fuzhou 350002, China
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Kale VS, Sim U, Yang J, Jin K, Chae SI, Chang WJ, Sinha AK, Ha H, Hwang CC, An J, Hong HK, Lee Z, Nam KT, Hyeon T. Sulfur-Modified Graphitic Carbon Nitride Nanostructures as an Efficient Electrocatalyst for Water Oxidation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1603893. [PMID: 28218825 DOI: 10.1002/smll.201603893] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 01/21/2017] [Indexed: 06/06/2023]
Abstract
There is an urgent need to develop metal-free, low cost, durable, and highly efficient catalysts for industrially important oxygen evolution reactions. Inspired by natural geodes, unique melamine nanogeodes are successfully synthesized using hydrothermal process. Sulfur-modified graphitic carbon nitride (S-modified g-CN x ) electrocatalysts are obtained by annealing these melamine nanogeodes in situ with sulfur. The sulfur modification in the g-CN x structure leads to excellent oxygen evolution reaction activity by lowering the overpotential. Compared with the previously reported nonmetallic systems and well-established metallic catalysts, the S-modified g-CN x nanostructures show superior performance, requiring a lower overpotential (290 mV) to achieve a current density of 10 mA cm-2 and a Tafel slope of 120 mV dec-1 with long-term durability of 91.2% retention for 18 h. These inexpensive, environmentally friendly, and easy-to-synthesize catalysts with extraordinary performance will have a high impact in the field of oxygen evolution reaction electrocatalysis.
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Affiliation(s)
- Vinayak S Kale
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Uk Sim
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul, 08826, Republic of Korea
| | - Jiwoong Yang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul, 08826, Republic of Korea
| | - Kyoungsuk Jin
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul, 08826, Republic of Korea
| | - Sue In Chae
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Woo Je Chang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul, 08826, Republic of Korea
- Interdisciplinary Program for Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Arun Kumar Sinha
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Heonjin Ha
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul, 08826, Republic of Korea
| | - Chan-Cuk Hwang
- Beamline Research Division, Pohang Accelerator Laboratory, POSTECH, Pohang, 37673, Republic of Korea
| | - Junghyun An
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul, 08826, Republic of Korea
| | - Hyo-Ki Hong
- School of Materials Science and Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, Republic of Korea
| | - Zonghoon Lee
- School of Materials Science and Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, Republic of Korea
| | - Ki Tae Nam
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul, 08826, Republic of Korea
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
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Ma Z, Lin S, Sa R, Li Q, Wu K. A comprehensive understanding of water photooxidation on Ag3PO4 surfaces. RSC Adv 2017. [DOI: 10.1039/c7ra02853a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A systematic study of the mechanism of OER on Ag3PO4 surfaces by combining hybrid DFT calculations and first principles thermodynamics.
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Affiliation(s)
- Zuju Ma
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| | - Sen Lin
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou 350002
- China
| | - Rongjian Sa
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| | - Qiaohong Li
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| | - Kechen Wu
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
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Gao X, Wang S, Lin S. Defective Hexagonal Boron Nitride Nanosheet on Ni(111) and Cu(111): Stability, Electronic Structures, and Potential Applications. ACS APPLIED MATERIALS & INTERFACES 2016; 8:24238-47. [PMID: 27564007 DOI: 10.1021/acsami.6b08097] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Defective hexagonal boron nitride nanosheets (h-BNNSs) supported by Ni(111) and Cu(111) surfaces have been systematically studied in this work by first-principles methods. The calculation results show that various defects play an important role in enhancing the stability of h-BNNS/metal heterostructure. Importantly, significant electron transfer through the interface between metal substrate and h-BNNS to the defect sites can make h-BNNS more catalytically active. Using the oxygen reduction reaction (ORR) as a probe, it is shown that the binding energies of O2*, OH*, OOH*, and O* on h-BNNS/Cu(111) with a boron vacancy (VB) are quite similar to those observed on the Pt(111) surface, suggesting inert h-BNNS materials with defects can be functionalized by metal surfaces to become catalytically active for the ORR process. On the other hand, the reaction mechanism of CO oxidation on Ni(111) and Cu(111) supported h-BNNS with VB is systematically investigated. The h-BN/Cu(111) catalyst with a VB precovered by a CO species exhibits catalytic capacity for CO oxidation with a lower energy barrier compared with that on h-BN/Cu(111) without any defect. While on Ni(111) supported h-BNNS with a N vacancy, the defect site turns to be dominated by O2 and the energy barrier is significantly increased, indicating its dependence on the type of defect. This work will provide information for designing h-BN-based catalysts in heterogeneous catalysis.
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Affiliation(s)
- Xiaomei Gao
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University , Fuzhou 350002, China
| | - Shujiao Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University , Fuzhou 350002, China
| | - Sen Lin
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University , Fuzhou 350002, China
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36
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Ong WJ, Tan LL, Ng YH, Yong ST, Chai SP. Graphitic Carbon Nitride (g-C3N4)-Based Photocatalysts for Artificial Photosynthesis and Environmental Remediation: Are We a Step Closer To Achieving Sustainability? Chem Rev 2016; 116:7159-329. [DOI: 10.1021/acs.chemrev.6b00075] [Citation(s) in RCA: 4328] [Impact Index Per Article: 541.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Wee-Jun Ong
- Multidisciplinary
Platform of Advanced Engineering, Chemical Engineering Discipline,
School of Engineering, Monash University, Jalan Lagoon Selatan, Bandar Sunway, 47500 Selangor, Malaysia
| | - Lling-Lling Tan
- Multidisciplinary
Platform of Advanced Engineering, Chemical Engineering Discipline,
School of Engineering, Monash University, Jalan Lagoon Selatan, Bandar Sunway, 47500 Selangor, Malaysia
| | - Yun Hau Ng
- Particles
and Catalysis Research Group (PARTCAT), School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Siek-Ting Yong
- Multidisciplinary
Platform of Advanced Engineering, Chemical Engineering Discipline,
School of Engineering, Monash University, Jalan Lagoon Selatan, Bandar Sunway, 47500 Selangor, Malaysia
| | - Siang-Piao Chai
- Multidisciplinary
Platform of Advanced Engineering, Chemical Engineering Discipline,
School of Engineering, Monash University, Jalan Lagoon Selatan, Bandar Sunway, 47500 Selangor, Malaysia
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37
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Ding K, Wen L, Huang M, Zhang Y, Lu Y, Chen Z. How does the B,F-monodoping and B/F-codoping affect the photocatalytic water-splitting performance of g-C3N4? Phys Chem Chem Phys 2016; 18:19217-26. [DOI: 10.1039/c6cp02169g] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
B/F codoping would be a promising strategy to promote the photocatalytic overall water-splitting performance of g-C3N4 under visible-light irradiation.
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Affiliation(s)
- Kaining Ding
- Department of Chemistry
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou
| | - Lili Wen
- Department of Chemistry
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou
| | - Mengyue Huang
- Department of Chemistry
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou
| | - Yongfan Zhang
- Department of Chemistry
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou
| | - Yunpeng Lu
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore
- Singapore
| | - Zhongfang Chen
- Department of Chemistry
- Institute for Functional Nanomaterials
- University of Puerto Rico
- San Juan
- USA
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38
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Zhou L, Zhang H, Sun H, Liu S, Tade MO, Wang S, Jin W. Recent advances in non-metal modification of graphitic carbon nitride for photocatalysis: a historic review. Catal Sci Technol 2016. [DOI: 10.1039/c6cy01195k] [Citation(s) in RCA: 286] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This review provides a comprehensive survey and critical comments on the development of photocatalysts with a focus on the metal-free materials.
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Affiliation(s)
- Li Zhou
- Department of Chemical Engineering
- Curtin University
- Australia
| | - Huayang Zhang
- Department of Chemical Engineering
- Curtin University
- Australia
| | - Hongqi Sun
- School of Engineering
- Edith Cowan University
- Joondalup
- Australia
| | - Shaomin Liu
- Department of Chemical Engineering
- Curtin University
- Australia
| | - Moses O. Tade
- Department of Chemical Engineering
- Curtin University
- Australia
| | - Shaobin Wang
- Department of Chemical Engineering
- Curtin University
- Australia
| | - Wanqin Jin
- State Key Laboratory of Materials-Oriented Chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- China
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