1
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Yang J, Wan R, Zhang Z, Tian G, Ju S, Luo H, Peng B, Qiu Y. ScSeI Monolayer for Photocatalytic Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2024; 16:49454-49464. [PMID: 39235951 DOI: 10.1021/acsami.4c11547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/07/2024]
Abstract
We theoretically identify the ScSeI monolayer as a promising new 2D material for photocatalysis through first-principles calculations. The most notable feature is the significant difference in carrier mobility, with electron mobility in the horizontal direction being 20.66 times higher than hole mobility, minimizing electron-hole recombination. The ScSeI monolayer exhibits a bandgap of 2.51 eV, with the valence band maximum at -6.37 eV and the conduction band minimum at -3.86 eV, meeting the requirements for water splitting. Phosphorus doping lowers the Gibbs free energy by 1.63 eV, enhancing the catalytic activity. The ScSeI monolayer achieves a hydrogen production efficiency of 17%, surpassing the commercial threshold of 10% and shows excellent mechanical, thermal, and dynamic stability, indicating feasibility for experimental synthesis and practical application. Additionally, the monolayer maintains its photocatalytic properties under tensile strain (-6% to 6%) and in aqueous environments, reinforcing its potential as an effective photocatalyst. Based on these findings, we believe the ScSeI monolayer is a highly promising photocatalyst.
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Affiliation(s)
- Jingfu Yang
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Rundong Wan
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Zhengfu Zhang
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Guocai Tian
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Shaohua Ju
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Huilong Luo
- Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650500, China
| | - Biaolin Peng
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, China
| | - Yan Qiu
- Shenyang Aluminum Magnesium Design and Research Institute, Shenyang 110011, China
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2
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Balan B, Xavier MM, Mathew S. MoS 2-Based Nanocomposites for Photocatalytic Hydrogen Evolution and Carbon Dioxide Reduction. ACS OMEGA 2023; 8:25649-25673. [PMID: 37521597 PMCID: PMC10373465 DOI: 10.1021/acsomega.3c02084] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 06/27/2023] [Indexed: 08/01/2023]
Abstract
Photocatalysis is a facile and sustainable approach for energy conversion and environmental remediation by generating solar fuels from water splitting. Due to their two-dimensional (2D) layered structure and excellent physicochemical properties, molybdenum disulfide (MoS2) has been effectively utilized in photocatalytic H2 evolution reaction (HER) and CO2 reduction. The photocatalytic efficiency of MoS2 greatly depends on the active edge sites present in their layered structure. Modifications like reducing the layer numbers, creating defective structures, and adopting different morphologies produce more unsaturated S atoms as active edge sites. Hence, MoS2 acts as a cocatalyst in nanocomposites/heterojunctions to facilitate the photogenerated electron transfer. This review highlights the role of MoS2 as a cocatalyst for nanocomposites in H2 evolution reaction and CO2 reduction. The H2 evolution activity has been described comprehensively as binary (with metal oxide, carbonaceous materials, metal sulfides, and metal-organic frameworks) and ternary composites of MoS2. Photocatalytic CO2 reduction is a more complex and challenging process that demands an efficient light-responsive semiconductor catalyst to tackle the thermodynamic and kinetic factors. Photocatalytic reduction of CO2 using MoS2 is an emerging topic and would be a cost-effective substitute for noble catalysts. Herein, we also exclusively envisioned the possibility of layered MoS2 and its composites in this area. This review is expected to furnish an understanding of the diverse roles of MoS2 in solar fuel generation, thus endorsing an interest in utilizing this unique layered structure to create nanostructures for future energy applications.
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Affiliation(s)
- Bhagyalakshmi Balan
- School
of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala 686 560, India
| | - Marilyn Mary Xavier
- School
of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala 686 560, India
| | - Suresh Mathew
- School
of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala 686 560, India
- Advanced
Molecular Materials Research Centre (AMMRC), Mahatma Gandhi University, Kottayam, Kerala 686 560, India
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3
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Zhang Y, Qi S, Yu J, Zhang R, Liu X, Zhang K. Theoretical Study on two Direct Z‐scheme Heterostructure Photocatalysts for Efficient Photohydrolysis and Catalytic Oxidation of Formaldehyde, CdS/BiOF and g‐C
3
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4
/BiOF. ChemistrySelect 2022. [DOI: 10.1002/slct.202202723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yiming Zhang
- School of Materials Science and Engineering Harbin University of Science and Technology Harbin China 150040
| | - Shuyan Qi
- School of Materials Science and Engineering Harbin University of Science and Technology Harbin China 150040
- School of Artificial Intelligence Liangjiang Chongqing University of Technology Chongqing China 400054
| | - Jintao Yu
- School of Artificial Intelligence Liangjiang Chongqing University of Technology Chongqing China 400054
- School of Materials Science and Engineering Harbin University of Science and Technology Harbin China 150040
| | - Ruiyan Zhang
- School of Materials Science and Engineering Harbin University of Science and Technology Harbin China 150040
| | - Xueting Liu
- School of Materials Science and Engineering Harbin University of Science and Technology Harbin China 150040
| | - Kaiyao Zhang
- School of Materials Science and Engineering Harbin University of Science and Technology Harbin China 150040
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4
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Opoku F, Osei-Bonsu Oppong S, Aniagyei A, Akoto O, Adimado AA. Boosting the photocatalytic H 2 evolution activity of type-II g-GaN/Sc 2CO 2 van der Waals heterostructure using applied biaxial strain and external electric field. RSC Adv 2022; 12:7391-7402. [PMID: 35424662 PMCID: PMC8982186 DOI: 10.1039/d2ra00419d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 02/26/2022] [Indexed: 01/17/2023] Open
Abstract
Two-dimensional (2D) van der Waals (vdW) heterostructures are a new class of materials with highly tunable bandgap transition type, bandgap energy and band alignment. Herein, we have designed a novel 2D g-GaN/Sc2CO2 heterostructure as a potential solar-driven photocatalyst for the water splitting process and investigate its catalytic stability, interfacial interactions, and optical and electronic properties, as well as the effects of applying an electric field and biaxial strain using first-principles calculation. The calculated lattice mismatch and binding energy showed that g-GaN and Sc2CO2 are in contact and may form a stable vdW heterostructure. Ab initio molecular dynamics and phonon dispersion simulations show thermal and dynamic stability. g-GaN/Sc2CO2 has an indirect bandgap energy with appropriate type-II band alignment relative to the water redox potentials. Meanwhile, the interfacial charge transfer from g-GaN to Sc2CO2 can effectively separate electron-hole pairs. Moreover, a potential drop of 3.78 eV is observed across the interface, inducing a built-in electric field pointing from g-GaN to Sc2CO2. The heterostructure shows improved visible-light optical absorption compared to the isolated g-GaN and Sc2CO2 monolayers. Our study demonstrates that tunable electronic and structural properties can be realised in the g-GaN/Sc2CO2 heterostructure by varying the electric field and biaxial strain. In particular, the compressive strain and negative electric field are more effective for promoting hydrogen production performance. Since it is challenging to tune the electric field and biaxial strain experimentally, our research provides strategies to boost the performance of MXene-based heterojunction photocatalysts in solar harvesting and optoelectronic devices.
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Affiliation(s)
- Francis Opoku
- Department of Chemistry, Kwame Nkrumah University of Science and Technology Kumasi Ghana
| | | | - Albert Aniagyei
- Department of Basic Sciences, University of Health and Allied Sciences Ho Ghana
| | - Osei Akoto
- Department of Chemistry, Kwame Nkrumah University of Science and Technology Kumasi Ghana
| | - Anthony Apeke Adimado
- Department of Chemistry, Kwame Nkrumah University of Science and Technology Kumasi Ghana
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5
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Wu B, Cai J, Zhou X. Structural, electronic, optical and photocatalytic properties of KTaO 3 with NiO cocatalyst modification. RSC Adv 2022; 12:32270-32279. [DOI: 10.1039/d2ra06425a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 11/04/2022] [Indexed: 11/11/2022] Open
Abstract
Density functional theory calculations reveal that NiO serves as an oxidation cocatalyst to form type-II band alignment with KTaO3, which suppresses the recombination of photoinduced carriers and enhances the photocatalytic activity of KTaO3.
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Affiliation(s)
- Bin Wu
- Organ Transplant Center, Fujian Medical University Union Hospital, Fuzhou 350000, China
| | - Jinzhen Cai
- Organ Transplant Center, Fujian Medical University Union Hospital, Fuzhou 350000, China
| | - Xin Zhou
- College of Environment and Chemical Engineering, Dalian University, Liaoning 116622, China
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6
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Singh A, Jain M, Bhattacharya S. MoS 2 and Janus (MoSSe) based 2D van der Waals heterostructures: emerging direct Z-scheme photocatalysts. NANOSCALE ADVANCES 2021; 3:2837-2845. [PMID: 36134195 PMCID: PMC9417246 DOI: 10.1039/d1na00154j] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 03/17/2021] [Indexed: 06/14/2023]
Abstract
Two-dimensional (2D) materials, viz. transition metal dichalcogenides (TMD) and transition metal oxides (TMO), offer a platform that allows the creation of heterostructures with a variety of properties. The optoelectronic industry has observed an upheaval in the research arena of MoS2 based van der Waals (vdW) heterostructures (HTSs) and Janus structures. Therefore, interest towards these structures is backed by the ability to select their electronic and optical properties. The present study investigates the photocatalytic abilites of bilayer, MoS2 and Janus (MoSSe) based vdW HTSs, viz. MoS2/TMO, MoS2/TMD, MoSSe/TMO and MoSSe/TMD, by a first-principles based approach under the framework of (hybrid) density functional theory (DFT) and many body perturbation theory (GW approximation). We have considered HfS2, ZrS2, TiS2 and WS2, and HfO2, T-SnO2 and T-PtO2 from the families of TMDs and TMOs, respectively. The photocatalytic properties of these vdW HTSs are thoroughly investigated and compared with their respective individual monolayers by visualizing their band edge alignments, electron-hole recombination and optical properties. Strikingly, we observe that, despite most of the individual monolayers not performing optimally as photocatalysts, type II band edge alignment is noticed in vdW HTSs and they appear to be efficient photocatalysts via the Z-scheme. Moreover, these vdW HTSs have also shown promising optical responses in the visible region. Finally, electron-hole recombination, H2O adsorption and hydrogen evolution reaction (HER) results establish that MoSSe/HfS2, MoSSe/TiS2, MoS2/T-SnO2 and MoSSe/ZrS2 are probable highly efficient Z-scheme photocatalysts.
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Affiliation(s)
- Arunima Singh
- Department of Physics, Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
| | - Manjari Jain
- Department of Physics, Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
| | - Saswata Bhattacharya
- Department of Physics, Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
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7
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Gunjal AR, Sethi YA, Kawade UV, Panmand RP, Ugale CK, Ambekar JD, Nagawade AV, Kale BB. Unique hierarchical SiO 2@ZnIn 2S 4 marigold flower like nanoheterostructure for solar hydrogen production. RSC Adv 2021; 11:14399-14407. [PMID: 35423991 PMCID: PMC8697935 DOI: 10.1039/d1ra01140e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 04/10/2021] [Indexed: 01/01/2023] Open
Abstract
The novel marigold flower like SiO2@ZnIn2S4 nano-heterostructure was fabricated using an in situ hydrothermal method. The nanoheterostructure exhibits hexagonal structure with marigold flower like morphology. The porous marigold flower assembly was constructed using ultrathin nanosheets. Interestingly, the thickness of the nanopetal was observed to be 5-10 nm and tiny SiO2 nanoparticles (5-7 nm) are decorated on the surface of the nanopetals. As the concentration of SiO2 increases the deposition of SiO2 nanoparticles on ZnIn2S4 nanopetals increases in the form of clusters. The optical study revealed that the band gap lies in the visible range of the solar spectrum. Using X-ray photoelectron spectroscopy (XPS), the chemical structure and valence states of the as-synthesized SiO2@ZnIn2S4 nano-heterostructure were confirmed. The photocatalytic activities of the hierarchical SiO2@ZnIn2S4 nano-heterostructure for hydrogen evolution from H2S under natural sunlight have been investigated with regard to the band structure in the visible region. The 0.75% SiO2@ZnIn2S4 showed a higher photocatalytic activity (6730 μmol-1 h-1 g-1) for hydrogen production which is almost double that of pristine ZnIn2S4. Similarly, the hydrogen production from water splitting was observed to be 730 μmol-1 h-1 g-1. The enhanced photocatalytic activity is attributed to the inhibition of charge carrier separation owing to the hierarchical morphology, heterojunction and crystallinity of the SiO2@ZnIn2S4.
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Affiliation(s)
- Aarti R Gunjal
- Dr John Barnabas post-graduate School for Biological Studies, Ahmednagar College Ahmednagar India
- Nanocrystalline Laboratory, Centre for Material for Electronic Technology (CMET), Department of Information Technology, Govt. of India Panchawati, Off Pashan Road Pune 411007 India +91 20 2589 8180 +91 20 2589 9273
| | - Yogesh A Sethi
- Dr John Barnabas post-graduate School for Biological Studies, Ahmednagar College Ahmednagar India
| | - Ujjwala V Kawade
- Dr John Barnabas post-graduate School for Biological Studies, Ahmednagar College Ahmednagar India
| | - Rajendra P Panmand
- Microwave Materials Division, Centre for Material for Electronic Technology (CMET) Shoranur Road, Athani Thrissur-680 581 India
| | - Chitra K Ugale
- Dr John Barnabas post-graduate School for Biological Studies, Ahmednagar College Ahmednagar India
| | - Jalindar D Ambekar
- Nanocrystalline Laboratory, Centre for Material for Electronic Technology (CMET), Department of Information Technology, Govt. of India Panchawati, Off Pashan Road Pune 411007 India +91 20 2589 8180 +91 20 2589 9273
| | - Arvind V Nagawade
- Nanocrystalline Laboratory, Centre for Material for Electronic Technology (CMET), Department of Information Technology, Govt. of India Panchawati, Off Pashan Road Pune 411007 India +91 20 2589 8180 +91 20 2589 9273
| | - Bharat B Kale
- Dr John Barnabas post-graduate School for Biological Studies, Ahmednagar College Ahmednagar India
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8
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Li H, Ye L, Xiong Y, Zhang H, Zhou S, Li W. Tunable electronic properties of BSe-MoS 2/WS 2 heterostructures for promoted light utilization. Phys Chem Chem Phys 2021; 23:10081-10096. [PMID: 33871522 DOI: 10.1039/d1cp00709b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
With applications in high performance electronics, photovoltaics, and catalysis, two-dimensional (2D) transition metal dichalcogenides (TMDCs) attract extensive attention due to their extraordinary physical properties. People have focused on TMDC-based materials for years, while the low mobility greatly hinders their further application. TMDC-based heterostructures with tunable band alignment have been experimentally confirmed to be feasible for photoelectronic devices or photocatalysts. Based on the density functional theory (DFT), there are four discoveries in this work: (1) we propose two new heterostructures based on BSe and MoS2/WS2 that have quite low mismatches and intrinsic type-II alignments. (2) Even though the VBM of BSe-MoS2 are completely contributed by BSe, the heterostructure is still endowed with a lower effective mass and a better transport characteristic in comparison with pristine structures. (3) A promoted absorption ability and a better transport characteristic oppose each other and the two characteristics cannot be obtained at the same time. (4) Tension strained structures can induce promoted light absorption in the solar spectrum and the predicted efficiency of the BSe-MoS2 bilayer can be as high as ∼19.3%, when the external electric field is applied. This theoretical survey proves that BSe-MoS2/WS2 with high flexibility and tunability are potential candidates for novel electronic devices and photocatalysts.
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Affiliation(s)
- Honglin Li
- College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 401331, P. R. China.
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9
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Opoku F, Akoto O, Oppong SOB, Adimado AA. Two-dimensional layered type-II MS 2/BiOCl (M = Zr, Hf) van der Waals heterostructures: promising photocatalysts for hydrogen generation. NEW J CHEM 2021. [DOI: 10.1039/d1nj03867b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Our theoretical findings reveal that in-plane biaxial strain tunes the bandgap and induces a transition from indirect to direct semiconductor.
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Affiliation(s)
- Francis Opoku
- Department of Chemistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Osei Akoto
- Department of Chemistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | | | - Anthony Apeke Adimado
- Department of Chemistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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10
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Tsoeu SE, Opoku F, Govender PP. Tuning the electronic, optical and structural properties of GaS/C2N van der Waals heterostructure for photovoltaic application: first-principle calculations. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2091-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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11
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Chen S, Huang D, Xu P, Gong X, Xue W, Lei L, Deng R, Li J, Li Z. Facet-Engineered Surface and Interface Design of Monoclinic Scheelite Bismuth Vanadate for Enhanced Photocatalytic Performance. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03411] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sha Chen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Piao Xu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Xiaomin Gong
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Wenjing Xue
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Lei Lei
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Rui Deng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Jing Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Zhihao Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
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12
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Guo X, Wang H, Wang L, Zeng D, Xiang Q, Chai B. Triple‐Mode Bi2WO6/Pg‐C3N4@rGO Core‐Shell Synergistic Effect with Enhanced Light‐induced Photocatalytic Activity. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11675] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Xiaofeng Guo
- State Key Laboratory Breeding Base of Mountain Bridge and Tunnel EngineeringChongqing Jiaotong University ChongQing, 400074 China
- School of Materials Science and EngineeringChongqing Jiaotong University ChongQing, 400074 China
- National Engineering Research Center for Inland Waterway RegulationChongqing Jiaotong University ChongQing, 400074 China
- National and Local Joint Engineering Laboratory of Traffic Civil Engineering materialsChongqing Jiaotong University ChongQing, 400074 China
| | - Hongbo Wang
- School of Materials Science and EngineeringChongqing Jiaotong University ChongQing, 400074 China
| | - Liying Wang
- National Engineering Research Center for Inland Waterway RegulationChongqing Jiaotong University ChongQing, 400074 China
| | - Defen Zeng
- School of Materials Science and EngineeringChongqing Jiaotong University ChongQing, 400074 China
| | - Qian Xiang
- School of Materials Science and EngineeringChongqing Jiaotong University ChongQing, 400074 China
| | - Ba Chai
- School of Materials Science and EngineeringChongqing Jiaotong University ChongQing, 400074 China
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13
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Yin M, Zhang W, Li H, Wu C, Jia F, Fan Y, Li Z. Insight into the factors influencing the photocatalytic H2 evolution performance of molybdenum sulfide. NEW J CHEM 2019. [DOI: 10.1039/c8nj04639e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The specific surface area and composition are found to be the key factors influencing the photocatalytic performance of MoS2+x.
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Affiliation(s)
- Mingcai Yin
- College of Chemistry and Molecular Engineering, Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Wenli Zhang
- College of Chemistry and Molecular Engineering, Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Hui Li
- College of Chemistry and Molecular Engineering, Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Chaojun Wu
- College of Chemistry and Molecular Engineering, Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Fangfang Jia
- College of Chemistry and Molecular Engineering, Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Yaoting Fan
- College of Chemistry and Molecular Engineering, Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Zhongjun Li
- College of Chemistry and Molecular Engineering, Zhengzhou University
- Zhengzhou 450001
- P. R. China
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14
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Huang HC, Yang CL, Wang MS, Ma XG, Yi YG. Group-IVA element-doped SrIn 2O 4 as potential materials for hydrogen production from water splitting with solar energy. RSC Adv 2018; 8:32317-32324. [PMID: 35547516 PMCID: PMC9086244 DOI: 10.1039/c8ra04569k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 09/04/2018] [Indexed: 11/26/2022] Open
Abstract
Band gap engineering can efficiently improve the photocatalytic activity of semiconductors for hydrogen generation from water splitting. Herein, we present a comprehensive investigation on the geometrical structures, electronic, optical, and potential photocatalytic properties and charge carrier mobility of pristine and group-IVA element-doped SrIn2O4 using first-principles density functional theory with the meta-GGA+MBJ potential. The calculated formation energies are moderate, indicating that the synthesis of the doped structures is experimentally feasible. In addition, the energy band gaps of the group-IVA element-doped SrIn2O4 range from 1.67 to 3.07 eV, which satisfy the requirements for photocatalytic water splitting, except for that of the Si mono-doped structure. Based on the deformation potential theory, a high charge carrier mobility of 2093 cm2 V-1 s-1 is obtained for the pristine SrIn2O4 and those of the doped-structures are also large, although a decrease in the values of some are observed. The optical absorption coefficient of the doped structures in the near ultraviolet (UV) and visible light range significantly increases. Therefore, group-IVA element-doped SrIn2O4 are potential candidates as photocatalysts for hydrogen generation from water splitting driven by visible light.
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Affiliation(s)
- Hai-Cai Huang
- School of Physics and Optoelectronics Engineering, Ludong University Yantai 26425 People's Republic of China +86 535 6672870
| | - Chuan-Lu Yang
- School of Physics and Optoelectronics Engineering, Ludong University Yantai 26425 People's Republic of China +86 535 6672870
| | - Mei-Shan Wang
- School of Physics and Optoelectronics Engineering, Ludong University Yantai 26425 People's Republic of China +86 535 6672870
| | - Xiao-Guang Ma
- School of Physics and Optoelectronics Engineering, Ludong University Yantai 26425 People's Republic of China +86 535 6672870
| | - You-Gen Yi
- Hunan Key Laboratory for High-Microstructure and Ultrafast Process, College of Physics and Electronics, Central South University Changsha 410083 People's Republic of China
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15
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Bella F, Renzi P, Cavallo C, Gerbaldi C. Caesium for Perovskite Solar Cells: An Overview. Chemistry 2018; 24:12183-12205. [DOI: 10.1002/chem.201801096] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Federico Bella
- GAME Lab; Department of Applied Science and Technology (DISAT); Politecnico di Torino; Corso Duca degli Abruzzi 24 10129 Torino Italy
| | - Polyssena Renzi
- Dipartimento di Chimica; Università degli Studi “La Sapienza”; P.le A. Moro 5 00185 Rome Italy
| | - Carmen Cavallo
- Department of Physics (Condensed Matter Physics); Chalmers University of Technology; Chalmersplatsen 1 41296 Gothenburg Sweden
| | - Claudio Gerbaldi
- GAME Lab; Department of Applied Science and Technology (DISAT); Politecnico di Torino; Corso Duca degli Abruzzi 24 10129 Torino Italy
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