51
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Liu B, Zhao X, Yu J, Parkin IP, Fujishima A, Nakata K. Intrinsic intermediate gap states of TiO2 materials and their roles in charge carrier kinetics. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2019. [DOI: 10.1016/j.jphotochemrev.2019.02.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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52
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Chu J, Sun Y, Han X, Zhang B, Du Y, Song B, Xu P. Mixed Titanium Oxide Strategy for Enhanced Photocatalytic Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2019; 11:18475-18482. [PMID: 31046226 DOI: 10.1021/acsami.9b04787] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Titanium dioxide is a promising photocatalyst material for water splitting, but is limited by its low utilization of solar energy and rapid recombination of electron-hole pairs. Herein, a mixed titanium oxide strategy, utilizing TiO2/Ti2O3 heterostructures consisting of in situ grown TiO2 nanotubes with mixed anatase and rutile phases on bulk Ti2O3 materials, is demonstrated for efficient and recyclable hydrogen evolution from photocatalytic water splitting. Taking advantage of the formed heterostructures and the created porous structures, the photogenerated electrons from the conduction band of anatase TiO2 can be first delivered to rutile TiO2 and then transferred to Ti2O3. Meanwhile, the presence of Ti2O3 in TiO2/Ti2O3 heterostructures can substantially promote the charge mobility and suppress the recombination of photogenerated electron-hole pairs. Hence, with a tuned band gap structure that enables rapid electron-hole separation, increased charge carrier density, and enhanced light absorption, the TiO2/Ti2O3 heterostructures provide an enhanced photocatalytic hydrogen evolution rate as high as 1440 μmol g-1 h-1 under full-sunlight irradiation and without any other cocatalyst. This mixed titanium oxide strategy may open up new avenues for designing and constructing highly efficient TiO2-based photocatalytic materials for various applications.
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Affiliation(s)
| | - Yanchun Sun
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products (Harbin), Ministry of Agriculture , Heilongjiang River Fisheries Research Institute of Chinese Academy of Fishery Sciences , Harbin 150070 , China
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53
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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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54
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Du Y, Niu X, Bai Y, Qi H, Guo Y, Chen Y, Wang P, Yang X, Feng Q. Synthesis of Anatase TiO
2
Nanocrystals with Defined Morphologies from Exfoliated Nanoribbons: Photocatalytic Performance and Application in Dye‐sensitized Solar Cell. ChemistrySelect 2019. [DOI: 10.1002/slct.201900257] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yi‐en Du
- School of Chemistry & Chemical EngineeringJinzhong University, Jinzhong, Shanxi 030619 P. R. China
- Beijing Key Laboratory of Energy Conversion and Storage MaterialsCollege of ChemistryBeijing Normal University, Beijing, 100875 China
- Department of Advanced Materials ScienceFaculty of Engineering, Kagawa University, 2217–20 Hayashi-cho, Takamatsu-shi 761-0396 Japan
| | - Xianjun Niu
- School of Chemistry & Chemical EngineeringJinzhong University, Jinzhong, Shanxi 030619 P. R. China
| | - Yang Bai
- School of Chemistry & Chemical EngineeringJinzhong University, Jinzhong, Shanxi 030619 P. R. China
| | - Hongxue Qi
- School of Chemistry & Chemical EngineeringJinzhong University, Jinzhong, Shanxi 030619 P. R. China
| | - Yanqing Guo
- School of Chemistry & Chemical EngineeringJinzhong University, Jinzhong, Shanxi 030619 P. R. China
| | - Yongqiang Chen
- School of Chemistry & Chemical EngineeringJinzhong University, Jinzhong, Shanxi 030619 P. R. China
| | - Pengfei Wang
- State Key Laboratory of Coal ConversionInstitute of Coal ChemistryChinese Academy of Sciences, Taiyuan, Shanxi 030001 P. R. China
| | - Xiaojing Yang
- Beijing Key Laboratory of Energy Conversion and Storage MaterialsCollege of ChemistryBeijing Normal University, Beijing, 100875 China
| | - Qi Feng
- Department of Advanced Materials ScienceFaculty of Engineering, Kagawa University, 2217–20 Hayashi-cho, Takamatsu-shi 761-0396 Japan
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55
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Lee K, Yoon H, Ahn C, Park J, Jeon S. Strategies to improve the photocatalytic activity of TiO 2: 3D nanostructuring and heterostructuring with graphitic carbon nanomaterials. NANOSCALE 2019; 11:7025-7040. [PMID: 30920558 DOI: 10.1039/c9nr01260e] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
TiO2-based photocatalysis has been considered to be one of the most promising avenues for environmental remediation including water purification. However, several technical issues such as the limited surface area of bulk TiO2, the large band gap of TiO2, and rapid charge recombination still limit the practical application of TiO2 photocatalysts. Therefore, here we focus on two structural design strategies: (i) monolithic three-dimensional (3D) nanostructuring, and (ii) heterostructuring with graphitic carbon nanomaterials. A monolithic 3D nanostructure enables maximal surface area in a given volume and efficient reuse of the photocatalyst without recollection. Heterostructuring with carbon nanomaterials helps achieve maximal utilization of the solar spectrum and charge separation and provides efficient TiO2 photocatalysts. In this review, recent progress on TiO2 photocatalysts toward the abovementioned strategies will be summarized. Further discussion and direction will provide insights into the rational design of highly efficient TiO2 photocatalysts, and help develop advanced photocatalyst models.
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Affiliation(s)
- Kisung Lee
- Department of Materials Science and Engineering, KAIST Institute for the Nanocentury, Advanced Battery Center, KAIST, Daejeon 34141, Republic of Korea.
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56
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Shi R, Chen Y. Controlled Formation of Defective Shell on TiO
2
(001) Facets for Enhanced Photocatalytic CO
2
Reduction. ChemCatChem 2019. [DOI: 10.1002/cctc.201900061] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Rui Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials & HKU-CAS Joint Laboratory on New Materials Technical Institute of Physics and ChemistryUniversity of Chinese Academy of Sciences Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Yong Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials & HKU-CAS Joint Laboratory on New Materials Technical Institute of Physics and ChemistryUniversity of Chinese Academy of Sciences Chinese Academy of Sciences Beijing 100190 P. R. China
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57
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Xu J, Wang Y, Niu J, Chen M, Teng F. Preparation of Bi2MoO6–BiOCOOH plate-on-plate heterojunction photocatalysts with significantly improved photocatalytic performance under visible light irradiation. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.02.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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58
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Li Y, Ye X, Cao S, Yang C, Wang Y, Ye J. Oxygen-Deficient Dumbbell-Shaped Anatase TiO 2-x Mesocrystals with Nearly 100 % Exposed {101} Facets: Synthesis, Growth Mechanism, and Photocatalytic Performance. Chemistry 2019; 25:3032-3041. [PMID: 30602067 DOI: 10.1002/chem.201805356] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Indexed: 11/09/2022]
Abstract
The development of hierarchical TiO2 superstructures with new morphologies and intriguing photoelectric properties for utilizing solar energy is known to be an effective approach to alleviate the serious problems of environmental pollution. Herein, unique oxygen-deficient dumbbell-shaped anatase TiO2-x mesocrystals (DTMCs) enclosed by nearly 100 % {101} facets were readily synthesized by mesoscale transformation in TiCl3 /acetic acid (HAc) mixed solution, followed by calcination under vacuum. These mesocrystals exhibited much higher photoreactivity toward removing the model pollutants methyl orange and CrVI than truncated tetragonal bipyramidal anatase nanocrystals (TNCs), anatase mesocrystals built from truncated tetragonal bipyramidal anatase nanocrystals (TTMCs), and anatase mesocrystals constructed by anatase nanocrystals with nearly 100 % exposed {101} facets (TMCs), revealing that both the oxidation and reduction abilities of anatase TiO2 were simultaneously enhanced upon fabricating an oxygen-deficient mesocrystalline architecture with about 100 % exposed {101} facets. Further characterization illustrated that such an enhancement of photoreactivity was mainly due to the strengthened light absorption, boosted charge carrier separation, and nearly 100 % exposed {101} facets of the oxygen-deficient dumbbell-shaped anatase mesocrystals. This work will be useful for guiding the synthesis of oxygen-deficient ordered superstructures of metal oxides with desired morphologies and exposed facets for promising applications in environmental remediation.
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Affiliation(s)
- Yongjun Li
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Xiaozhou Ye
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Shengxin Cao
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Chujing Yang
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Yun Wang
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Jianfeng Ye
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
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59
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Katal R, Kholghi Eshkalak S, Masudy-Panah S, Kosari M, Saeedikhani M, Zarinejad M, Ramakrishna S. Evaluation of Solar-Driven Photocatalytic Activity of Thermal Treated TiO₂ under Various Atmospheres. NANOMATERIALS 2019; 9:nano9020163. [PMID: 30699943 PMCID: PMC6409930 DOI: 10.3390/nano9020163] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/23/2019] [Accepted: 01/25/2019] [Indexed: 12/02/2022]
Abstract
In this report, the photocatalytic activity of P25 has been explored and the influence of thermal treatment under various atmospheres (air, vacuum and hydrogen) were discussed. The samples’ characteristics were disclosed by means of various instruments including X-ray diffraction (XRD), Electron paramagnetic resonance (EPR), X-ray photoelectron spectroscopy (XPS) and UV–vis. This study also accentuates various states of the oxygen vacancy density formed inside the samples as well as the colour turning observed in treated P25 under various atmospheres. Produced coloured TiO2 samples were then exploited for their photocatalytic capability concerning photodegradation of methylene blue (MB) using air mass (AM) 1.5 G solar light irradiation. Our findings revealed that exceptional photocatalytic activity of P25 is related to the thermal treatment. Neither oxygen vacancy formation nor photocatalytic activity enhancement was observed in the air-treated sample. H2-treated samples have shown better photoactivity which even could be further improved by optimizing treatment conditions to achieve the advantages of the positive role of oxygen vacancy (O-vacancy at higher concentration than optimum acts as electron trapping sites). The chemical structure and stability of the samples were also studied. There was no sign of deteriorating of O2-vacancies inside the samples after 6 months. High stability of thermal treated samples in terms of both long and short-term time intervals is another significant feature of the produced photocatalyst.
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Affiliation(s)
- Reza Katal
- Department of Civil & Environmental Engineering, National University of Singapore, Singapore 117576, Singapore.
| | - Saeideh Kholghi Eshkalak
- Department of Mechanical Engineering, Center for Nanofibers and Nanotechnology, National University of Singapore, Singapore 117575, Singapore.
| | - Saeid Masudy-Panah
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 119260, Singapore.
| | - Mohammadreza Kosari
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, Singapore 119260, Singapore.
| | - Mohsen Saeedikhani
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117583, Singapore.
| | - Mehrdad Zarinejad
- Singapore Institute of Manufacturing Technology (SIMTech), A*STAR (Agency for Science, Technology and Research), Singapore 138634, Singapore.
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, Center for Nanofibers and Nanotechnology, National University of Singapore, Singapore 117575, Singapore.
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60
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Hong X, Tan J, Zhu H, Feng N, Yang Y, Irvine JTS, Wang L, Liu G, Cheng HM. Control of Spatially Homogeneous Distribution of Heteroatoms to Produce Red TiO2
Photocatalyst for Visible-Light Photocatalytic Water Splitting. Chemistry 2019; 25:1787-1794. [DOI: 10.1002/chem.201805283] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Indexed: 01/18/2023]
Affiliation(s)
- Xingxing Hong
- Shenyang National Laboratory for Materials Science; Institute of Metal Research; Chinese Academy of Sciences; 72 Wenhua Road Shenyang 110016 P.R. China
- School of Materials Science and Engineering; University of Science and Technology of China; 72 Wenhua Road Shenyang 110016 P.R. China
| | - Jun Tan
- Shenyang National Laboratory for Materials Science; Institute of Metal Research; Chinese Academy of Sciences; 72 Wenhua Road Shenyang 110016 P.R. China
| | - Huaze Zhu
- Shenyang National Laboratory for Materials Science; Institute of Metal Research; Chinese Academy of Sciences; 72 Wenhua Road Shenyang 110016 P.R. China
| | - Ningdong Feng
- State Key Laboratory of Magnetic Resonance, and Atomic Molecular Physics; Wuhan Center for Magnetic Resonance; Key Laboratory of Magnetic Resonance in Biological Systems; Wuhan Institute of Physics and Mathematics; Chinese Academy of Sciences; Wuhan 430071 P.R. China
| | - Yongqiang Yang
- Shenyang National Laboratory for Materials Science; Institute of Metal Research; Chinese Academy of Sciences; 72 Wenhua Road Shenyang 110016 P.R. China
| | | | - Lianzhou Wang
- Nanomaterials Centre; School of Chemical Engineering and AIBN; The University of Queensland; St Lucia Brisbane QLD 4072 Australia
| | - Gang Liu
- Shenyang National Laboratory for Materials Science; Institute of Metal Research; Chinese Academy of Sciences; 72 Wenhua Road Shenyang 110016 P.R. China
- School of Materials Science and Engineering; University of Science and Technology of China; 72 Wenhua Road Shenyang 110016 P.R. China
| | - Hui-Ming Cheng
- Shenyang National Laboratory for Materials Science; Institute of Metal Research; Chinese Academy of Sciences; 72 Wenhua Road Shenyang 110016 P.R. China
- Tsinghua-Berkeley Shenzhen Institute; Tsinghua University; 1001 Xueyuan Road Shenzhen 518055 P.R. China
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61
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Shi H, Zhao T, Zhang Y, Tan H, Shen W, Wang W, Li Y, Wang E. Pt/POMs/TiO2 composite nanofibers with an enhanced visible-light photocatalytic performance for environmental remediation. Dalton Trans 2019; 48:13353-13359. [DOI: 10.1039/c9dt02965f] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pt/PMo12/TiO2 composite nanofibers have been prepared and exhibit a highly efficient visible-light photocatalytic performance for removing methyl orange, tetracycline, Bisphenol A and Cr(vi).
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Affiliation(s)
- Hongfei Shi
- Institute of Petrochemical Technology
- Jilin Institute of Chemical Technology
- Jilin
- P. R. China
- Key Laboratory of Polyoxometalate Science of Ministry of Education
| | - Tingting Zhao
- Institute of Petrochemical Technology
- Jilin Institute of Chemical Technology
- Jilin
- P. R. China
| | - Yue Zhang
- Research Institute of Jilin Petrochemical Company
- PetroChina
- China
| | - Huaqiao Tan
- Key Laboratory of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Wenhui Shen
- Institute of Petrochemical Technology
- Jilin Institute of Chemical Technology
- Jilin
- P. R. China
| | - Weidong Wang
- Institute of Petrochemical Technology
- Jilin Institute of Chemical Technology
- Jilin
- P. R. China
| | - Yangguang Li
- Key Laboratory of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Enbo Wang
- Key Laboratory of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
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62
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Cheng H, Xu W. Recent advances in modified TiO2 for photo-induced organic synthesis. Org Biomol Chem 2019; 17:9977-9989. [DOI: 10.1039/c9ob01739a] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The recent advancements of modified TiO2 materials as photocatalysts for organic synthesis are summarized.
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Affiliation(s)
- Haojie Cheng
- School of Information Management
- Nanjing University
- Nanjing 210023
- China
| | - Wentao Xu
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
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63
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Yao B, Zhang J, Fan X, He J, Li Y. Surface Engineering of Nanomaterials for Photo-Electrochemical Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1803746. [PMID: 30411486 DOI: 10.1002/smll.201803746] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 10/19/2018] [Indexed: 05/20/2023]
Abstract
Photo-electrochemical water splitting represents a green and environmentally friendly method for producing solar hydrogen. Semiconductor nanomaterials with a highly accessible surface area, reduced charge migration distance, and tunable optical and electronic property are regarded as promising electrode materials to carry out this solar-to-hydrogen process. Since most of the photo-electrochemical reactions take place on the electrode surface or near-surface region, rational engineering of the surface structures, physical properties, and chemical nature of photoelectrode materials could fundamentally change their performance. Here, the recent advances in surface engineering methods, including the modification of the nanomaterial surface morphology, crystal facet, defect and doping concentrations, as well as the deposition of a functional overlayer of sensitizers, plasmonic metallic structures, and protective and catalytic materials are highlighted. Each surface engineering method and how it affects the structural features and photo-electrochemical performance of nanomaterials are reviewed and compared. Finally, the current challenges and the opportunities in the field are discussed.
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Affiliation(s)
- Bin Yao
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA, 95064, USA
| | - Jing Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA, 95064, USA
| | - Xiaoli Fan
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA, 95064, USA
- College of Materials Science and Technology, Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China
| | - Jianping He
- College of Materials Science and Technology, Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China
| | - Yat Li
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA, 95064, USA
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64
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Zhang Y, Lin YZ, Wang ZX, Li K, Li T, Liu FT. Hybrid VS2 cocatalyst and phosphorus dopant towards both surface and bulk modification of ZnCdS/CdS heterostructures. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02242a] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The bulk phosphorus doping and the surface VS2 modification over ZnCdS–CdS show synergistic effects for improving its photocatalytic activity.
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Affiliation(s)
- Yu Zhang
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Ye-Zhan Lin
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Zhao-Xu Wang
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Kui Li
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Tao Li
- Engineering Technology Research Center of Henan Province for Solar Catalysis
- College of Chemistry and Pharmaceutical Engineering
- Nanyang Normal University
- Nanyang 473061
- China
| | - Fu-Tian Liu
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
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65
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Fan X, Wang J, Wu K, Zhang L, Zhang J. Isomerism in Titanium-Oxo Clusters: Molecular Anatase Model with Atomic Structure and Improved Photocatalytic Activity. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809961] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Xi Fan
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; 350002 Fuzhou P. R. China
| | - Junhui Wang
- State Key Laboratory of Molecular Reaction Dynamics; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 116023 Dalian P. R. China
| | - Kaifeng Wu
- State Key Laboratory of Molecular Reaction Dynamics; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 116023 Dalian P. R. China
| | - Lei Zhang
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; 350002 Fuzhou P. R. China
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; 350002 Fuzhou P. R. China
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66
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Fan X, Wang J, Wu K, Zhang L, Zhang J. Isomerism in Titanium-Oxo Clusters: Molecular Anatase Model with Atomic Structure and Improved Photocatalytic Activity. Angew Chem Int Ed Engl 2018; 58:1320-1323. [DOI: 10.1002/anie.201809961] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Xi Fan
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; 350002 Fuzhou P. R. China
| | - Junhui Wang
- State Key Laboratory of Molecular Reaction Dynamics; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 116023 Dalian P. R. China
| | - Kaifeng Wu
- State Key Laboratory of Molecular Reaction Dynamics; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 116023 Dalian P. R. China
| | - Lei Zhang
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; 350002 Fuzhou P. R. China
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; 350002 Fuzhou P. R. China
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67
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Ayyub MM, Prasad S, Lingampalli SR, Manjunath K, Waghmare UV, Rao CNR. TiNF and Related Analogues of TiO 2 : A Combined Experimental and Theoretical Study. Chemphyschem 2018; 19:3410-3417. [PMID: 30371006 DOI: 10.1002/cphc.201800778] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Indexed: 11/05/2022]
Abstract
Aliovalent anion substitution in inorganic materials brings about marked changes in properties, as exemplified by N,F-codoped metal oxides. Recently, complete substitution of oxygen in ZnO by N and F was carried out to generate Zn2 NF. In view of the important properties of TiO2 , we have attempted to prepare TiNF by employing an entirely new procedure involving the reaction of TiN with TiF4 . While the reaction at low temperature (450 °C) yields TiNF in the anatase phase, reaction at a higher temperature (600 °C) yields TiNF in the rutile phase. This is interesting since the anatase phase of TiO2 also transforms to the rutile phase on heating. The lattice parameters of TiNF are close to those of the parent oxide. Partial substitution of oxygen in TiO2 by N and F reduces the band gap, but complete substitution increases the value comparable to that of the oxide. We have examined properties of N,F-codoped TiO2 , and more interestingly N,F-codoped Ti3 O5 , both with lower band gaps than the parent oxides. A detailed first-principles calculations has been carried out on structural and electronic properties of N,F-TiO2 and the TiNF phases. This has enabled us to understand the effects of N,F substitution in TiO2 in terms of the crystal structure, electronic structure and optical properties.
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Affiliation(s)
- Mohd Monis Ayyub
- New Chemistry Unit, Theoretical Science Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore-, 560064, India
| | - Suchitra Prasad
- New Chemistry Unit, Theoretical Science Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore-, 560064, India
| | - Srinivasa Rao Lingampalli
- New Chemistry Unit, Theoretical Science Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore-, 560064, India
| | - Krishnappa Manjunath
- New Chemistry Unit, Theoretical Science Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore-, 560064, India
| | - Umesh V Waghmare
- New Chemistry Unit, Theoretical Science Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore-, 560064, India
| | - C N R Rao
- New Chemistry Unit, Theoretical Science Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore-, 560064, India
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68
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Selcuk S, Zhao X, Selloni A. Structural evolution of titanium dioxide during reduction in high-pressure hydrogen. NATURE MATERIALS 2018; 17:923-928. [PMID: 30013054 DOI: 10.1038/s41563-018-0135-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 06/15/2018] [Indexed: 05/07/2023]
Abstract
The excellent photocatalytic properties of titanium oxide (TiO2) under ultraviolet light have long motivated the search for doping strategies capable of extending its photoactivity to the visible part of the spectrum. One approach is high-pressure and high-temperature hydrogenation, which results in reduced 'black TiO2' nanoparticles with a crystalline core and a disordered shell that absorbs visible light. Here we elucidate the formation mechanism and structural features of black TiO2 using first-principles-validated reactive force field molecular dynamics simulations of anatase TiO2 surfaces and nanoparticles at high temperature and under high hydrogen pressures. Simulations reveal that surface oxygen vacancies created upon reaction of H2 with surface oxygen atoms diffuse towards the bulk material but encounter a high barrier for subsurface migration on {001} facets of the nanoparticles, which initiates surface disordering. Besides confirming that the hydrogenated amorphous shell has a key role in the photoactivity of black TiO2, our results provide insight into the properties of the disordered surface layers that are observed on regular anatase nanocrystals under photocatalytic water-splitting conditions.
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Affiliation(s)
- Sencer Selcuk
- Department of Chemistry, Princeton University, Princeton, NJ, USA.
| | - Xunhua Zhao
- Department of Chemistry, Princeton University, Princeton, NJ, USA
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69
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Zhu W, Chi M, Gao M, Wang C, Lu X. Controlled synthesis of titanium dioxide/molybdenum disulfide core-shell hybrid nanofibers with enhanced peroxidase-like activity for colorimetric detection of glutathione. J Colloid Interface Sci 2018; 528:410-418. [DOI: 10.1016/j.jcis.2018.05.068] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/19/2018] [Accepted: 05/21/2018] [Indexed: 10/16/2022]
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70
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Zhu BC, Fang WH, Wang J, Du Y, Zhou T, Wu K, Zhang L, Zhang J. Host-Guest and Photophysical Behavior of Ti8
L12
Cube with Encapsulated [Ti(H2
O)6
] Species. Chemistry 2018; 24:14358-14362. [DOI: 10.1002/chem.201802930] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Bang-Chang Zhu
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; 350002 Fuzhou P. R. China
| | - Wei-Hui Fang
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; 350002 Fuzhou P. R. China
| | - Junhui Wang
- State Key Laboratory of Molecular Reaction Dynamics; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian Liaoning 116023 P. R. China
| | - Yonghua Du
- Institute of Chemical and Engineering Sciences; A*STAR; 1 Pesek Road Jurong Island 627833 Singapore
| | - Tianhua Zhou
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; 350002 Fuzhou P. R. China
| | - Kaifeng Wu
- State Key Laboratory of Molecular Reaction Dynamics; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian Liaoning 116023 P. R. China
| | - Lei Zhang
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; 350002 Fuzhou P. R. China
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; 350002 Fuzhou P. R. China
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71
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Tan B, Ye X, Li Y, Ma X, Wang Y, Ye J. Defective Anatase TiO 2-x Mesocrystal Growth In Situ on g-C 3 N 4 Nanosheets: Construction of 3D/2D Z-Scheme Heterostructures for Highly Efficient Visible-Light Photocatalysis. Chemistry 2018; 24:13311-13321. [PMID: 29957872 DOI: 10.1002/chem.201802366] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 06/14/2018] [Indexed: 11/09/2022]
Abstract
Environmental remediation by employing visible-light-active semiconductor heterostructures provides effective solutions for handling emerging contaminants by a much greener and lower cost approach compared with other methods. This report demonstrates that the in situ growth of nanosized single-crystal-like defective anatase TiO2-x mesocrystals (DTMCs) on g-C3 N4 nanosheets (NSs) can produce a 3D/2D DTMC/g-C3 N4 NS heterostructure with the two components held together by chemical bonds to form tight interfaces. This nanostructured heterostructure displayed remarkably improved photocatalytic activity toward the removal of the model pollutants Methyl Orange (MO) and CrVI under visible-light irradiation in comparison with the pristine DTMC and g-C3 N4 NS components, which suggests that both the oxidation and reduction abilities of the DTMC/g-C3 N4 NSs were simultaneously enhanced after fabrication. On the basis of the results of a systematic characterization, a reasonable mechanism for the photocatalytic activity based on a direct Z-scheme heterojunction is proposed and further verified by the measurement of . OH. This novel Z-scheme heterojunction endows the heterostructure with improved photogenerated electron/hole pair separation and a strong redox ability for the efficient degradation of wastewater pollutants. This work will be useful for the design and fabrication of direct Z-scheme heterostructured photocatalysts with novel architectures for applications in energy conversion and environmental remediation.
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Affiliation(s)
- Biying Tan
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Xiaozhou Ye
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Yongjun Li
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Xiaoqi Ma
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Yun Wang
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Jianfeng Ye
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
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72
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One-pot topotactic synthesis of Ti 3+ self-doped 3D TiO 2 hollow nanoboxes with enhanced visible light response. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(18)63106-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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73
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Lv Y, Lu B, Zhang S, Li J, Lu G, Sun H, Liang S, Liu Z. Mechanical enhancement of amine-functionalized TiO 2
reinforced polyimine composites. J Appl Polym Sci 2018. [DOI: 10.1002/app.46446] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yanting Lv
- Key laboratory of Bionic Engineering (Ministry of Education); College of Biological and Agricultural Engineering, Jilin University, Changchun; Jilin Province 130022 China
| | - Bo Lu
- Key laboratory of Bionic Engineering (Ministry of Education); College of Biological and Agricultural Engineering, Jilin University, Changchun; Jilin Province 130022 China
| | - Si Zhang
- Key laboratory of Bionic Engineering (Ministry of Education); College of Biological and Agricultural Engineering, Jilin University, Changchun; Jilin Province 130022 China
| | - Jiayi Li
- Key laboratory of Bionic Engineering (Ministry of Education); College of Biological and Agricultural Engineering, Jilin University, Changchun; Jilin Province 130022 China
| | - Guolong Lu
- Key laboratory of Bionic Engineering (Ministry of Education); College of Biological and Agricultural Engineering, Jilin University, Changchun; Jilin Province 130022 China
| | - Hang Sun
- Key laboratory of Bionic Engineering (Ministry of Education); College of Biological and Agricultural Engineering, Jilin University, Changchun; Jilin Province 130022 China
| | - Song Liang
- Key laboratory of Bionic Engineering (Ministry of Education); College of Biological and Agricultural Engineering, Jilin University, Changchun; Jilin Province 130022 China
| | - Zhenning Liu
- Key laboratory of Bionic Engineering (Ministry of Education); College of Biological and Agricultural Engineering, Jilin University, Changchun; Jilin Province 130022 China
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74
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Han SY, Pan DL, Chen H, Bu XB, Gao YX, Gao H, Tian Y, Li GS, Wang G, Cao SL, Wan CQ, Guo GC. A Methylthio-Functionalized-MOF Photocatalyst with High Performance for Visible-Light-Driven H2
Evolution. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806077] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shu-Yan Han
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Dong-Lai Pan
- The Education Ministry Key Lab of Resource Chemistry; Shanghai Key Laboratory of Rare Earth Functional Materials; Shanghai Normal University; Shanghai 200234 China
| | - Hui Chen
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Xian-Bao Bu
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Yi-Xuan Gao
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Hui Gao
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Yang Tian
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Gui-Sheng Li
- The Education Ministry Key Lab of Resource Chemistry; Shanghai Key Laboratory of Rare Earth Functional Materials; Shanghai Normal University; Shanghai 200234 China
| | - Guo Wang
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Sheng-Li Cao
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Chong-Qing Wan
- Department of Chemistry; Capital Normal University; Beijing 100048 China
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Guo-Cong Guo
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
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75
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Han SY, Pan DL, Chen H, Bu XB, Gao YX, Gao H, Tian Y, Li GS, Wang G, Cao SL, Wan CQ, Guo GC. A Methylthio-Functionalized-MOF Photocatalyst with High Performance for Visible-Light-Driven H2
Evolution. Angew Chem Int Ed Engl 2018; 57:9864-9869. [DOI: 10.1002/anie.201806077] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Indexed: 12/24/2022]
Affiliation(s)
- Shu-Yan Han
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Dong-Lai Pan
- The Education Ministry Key Lab of Resource Chemistry; Shanghai Key Laboratory of Rare Earth Functional Materials; Shanghai Normal University; Shanghai 200234 China
| | - Hui Chen
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Xian-Bao Bu
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Yi-Xuan Gao
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Hui Gao
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Yang Tian
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Gui-Sheng Li
- The Education Ministry Key Lab of Resource Chemistry; Shanghai Key Laboratory of Rare Earth Functional Materials; Shanghai Normal University; Shanghai 200234 China
| | - Guo Wang
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Sheng-Li Cao
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Chong-Qing Wan
- Department of Chemistry; Capital Normal University; Beijing 100048 China
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Guo-Cong Guo
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
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76
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Ma Y, Wang N, Chen J, Chen C, San H, Chen J, Cheng Z. Betavoltaic Enhancement Using Defect-Engineered TiO 2 Nanotube Arrays through Electrochemical Reduction in Organic Electrolytes. ACS APPLIED MATERIALS & INTERFACES 2018; 10:22174-22181. [PMID: 29882646 DOI: 10.1021/acsami.8b05151] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Utilizing high-energy beta particles emitted from radioisotopes for long-lifetime betavoltaic cells is a great challenge due to low energy conversion efficiency. Here, we report a betavoltaic cell fabricated using TiO2 nanotube arrays (TNTAs) electrochemically reduced in ethylene glycol electrolyte (EGECR-TNTAs) for the enhancement of the betavoltaic effect. The electrochemical reduction of TNTAs using high cathodic bias in organic electrolytes is indeed a facile and effective strategy to induce in situ self-doping of oxygen vacancy (OV) and Ti3+ defects. The black EGECR-TNTAs are highly stable with a significantly narrower band gap and higher electrical conductivity as well as UV-vis-NIR light absorption. A 20 mCi of 63Ni betavoltaic cell based on the reduced TNTAs exhibits a maximum ECE of 3.79% with open-circuit voltage of 1.04 V, short-circuit current density of 117.5 nA cm-2, and a maximum power density of 39.2 nW cm-2. The betavoltaic enhancement can be attributed to the enhanced charge carrier transport and separation as well as multiple exciton generation of electron-hole pairs due the generation of OV and Ti3+ interstitial bands below the conductive band of TiO2.
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Affiliation(s)
- Yang Ma
- Pen-Tung Sah Institute of Micro-Nano Science and Technology , Xiamen University , Xiamen 361005 , China
- Shenzhen Research Institute of Xiamen University , Shenzhen 518000 , China
| | - Na Wang
- Pen-Tung Sah Institute of Micro-Nano Science and Technology , Xiamen University , Xiamen 361005 , China
- Shenzhen Research Institute of Xiamen University , Shenzhen 518000 , China
| | - Jiang Chen
- Pen-Tung Sah Institute of Micro-Nano Science and Technology , Xiamen University , Xiamen 361005 , China
- Shenzhen Research Institute of Xiamen University , Shenzhen 518000 , China
| | - Changsong Chen
- Pen-Tung Sah Institute of Micro-Nano Science and Technology , Xiamen University , Xiamen 361005 , China
- Shenzhen Research Institute of Xiamen University , Shenzhen 518000 , China
| | - Haisheng San
- Pen-Tung Sah Institute of Micro-Nano Science and Technology , Xiamen University , Xiamen 361005 , China
- Shenzhen Research Institute of Xiamen University , Shenzhen 518000 , China
- Shenzhen Betary Energy Technologies Co., Ltd. , Shenzhen 518063 , China
| | - Jige Chen
- Shenzhen Betary Energy Technologies Co., Ltd. , Shenzhen 518063 , China
| | - Zhengdong Cheng
- Shenzhen Betary Energy Technologies Co., Ltd. , Shenzhen 518063 , China
- Artie McFerrin Department of Chemical Engineering , Texas A&M University , College Station , Texas 77843-3122 , United States
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77
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Li D, Chen Y, Abanades S, Zhang Z. Enhanced activity of TiO2 by concentrating light for photoreduction of CO2 with H2O to CH4. CATAL COMMUN 2018. [DOI: 10.1016/j.catcom.2018.05.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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78
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Lin MH, Parasuraman PS, Ho CH. The Study of Near-Band-Edge Property in Oxygen-Incorporated ZnS for Acting as an Efficient Crystal Photocatalyst. ACS OMEGA 2018; 3:6351-6359. [PMID: 31458818 PMCID: PMC6644370 DOI: 10.1021/acsomega.8b00260] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 06/04/2018] [Indexed: 06/10/2023]
Abstract
A wide gap semiconductor material has attracted attention as a heterophotocatalyst because of its light harvesting nature to be used in alternative energy production for the next generation. We, herein, grow and synthesize ZnS(1-x)O x series compounds using the chemical vapor transport (CVT) method with I2 serving as the transport agent. Different crystals, such as undoped ZnS and oxygen-doped ZnS0.94O0.06 and ZnS0.88O0.12, revealed different bright palette emissions that were presented in photoluminescence spectra in our previous report. To study the electron-hole pair interaction of this sample series, the near-band-edge transitions of the sample series were characterized in detail by photoconductivity (PC) experiments. Additional results from surface photovoltage (SPV) spectra also detected the surface and defect-edge transitions from the higher oxygen-doped ZnS crystals. PC measurement results showed a red-shift in the bandgap with increasing incorporation of oxygen on ZnS. Consequently, the samples were subjected to photoirradiation by xenon lamp for the degradation of methylene blue (MNB) by acting as heterophotocatalysts. Undoped ZnS emerged as the best photocatalyst candidate with the fastest rate constant value of 0.0277 min-1. In cubic {111} ZnS [{111} c-ZnS], the polarized Zn+ → S- ions may play a vital role as a photocatalyst because of their strong electron-hole polarization, which leads to the mechanism for degradation of the MNB solution.
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Affiliation(s)
- Min-Han Lin
- Graduate
Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Perumalswamy Sekar Parasuraman
- Graduate
Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Ching-Hwa Ho
- Graduate
Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan
- Graduate
Institute of Electro-Optical Engineering and Department of Electronic
and Computer Engineering, National Taiwan
University of Science and Technology, Taipei 106, Taiwan
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79
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Chen S, Fang WH, Zhang L, Zhang J. Atomically Precise Multimetallic Semiconductive Nanoclusters with Optical Limiting Effects. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804569] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shuai Chen
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; 350002 Fuzhou P. R. China
| | - Wei-Hui Fang
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; 350002 Fuzhou P. R. China
| | - Lei Zhang
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; 350002 Fuzhou P. R. China
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; 350002 Fuzhou P. R. China
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80
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Atomically Precise Multimetallic Semiconductive Nanoclusters with Optical Limiting Effects. Angew Chem Int Ed Engl 2018; 57:11252-11256. [DOI: 10.1002/anie.201804569] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Indexed: 11/07/2022]
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81
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Huyen TTT, Chi TTK, Dung ND, Kosslick H, Liem NQ. Enhanced Photocatalytic Activity of {110}-Faceted TiO₂ Rutile Nanorods in the Photodegradation of Hazardous Pharmaceuticals. NANOMATERIALS 2018; 8:nano8050276. [PMID: 29693630 PMCID: PMC5977290 DOI: 10.3390/nano8050276] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 04/19/2018] [Accepted: 04/20/2018] [Indexed: 11/16/2022]
Abstract
Rutile TiO₂ with highly active facets has attracted much attention owing to its enhanced activity during the photocatalytic degradation of pollutants such as pharmaceuticals in wastewater. However, it is difficult to obtain by controlling the synthetic conditions. This paper reports a simple hydrothermal synthesis of rutile TiO₂ nanorods with highly exposed {110} facets. The obtained rutile was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM), and Raman spectroscopy. The main contribution to the photocatalytic activity comes from rutile nanorods with highly dominant active {110} facets, which were studied in the photodegradation of reactive cinnamic acid and more recalcitrant ibuprofen. The contribution of active species was also investigated. The present work further confirmed the hydrothermal synthesis route for controlling the preparation of highly crystalline and active rutile nanocrystals.
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Affiliation(s)
- Tran Thi Thuong Huyen
- Institute of Materials Science (IMS), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam.
- Institute of Chemistry, Department of Inorganic Chemistry, University of Rostock, Albert-Einstein-Str. 3a, Rostock 18051, Germany.
| | - Tran Thi Kim Chi
- Institute of Materials Science (IMS), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam.
| | - Nguyen Duc Dung
- Advanced Institute of Science and Technology (AIST), Hanoi University of Science and Technology, 1 Dai Co Viet, Hanoi 100000, Vietnam.
| | - Hendrik Kosslick
- Institute of Chemistry, Department of Inorganic Chemistry, University of Rostock, Albert-Einstein-Str. 3a, Rostock 18051, Germany.
| | - Nguyen Quang Liem
- Institute of Materials Science (IMS), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam.
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82
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Yu Z, Chen XQ, Kang X, Xie Y, Zhu H, Wang S, Ullah S, Ma H, Wang L, Liu G, Ma X, Cheng HM. Noninvasively Modifying Band Structures of Wide-Bandgap Metal Oxides to Boost Photocatalytic Activity. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1706259. [PMID: 29457289 DOI: 10.1002/adma.201706259] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 12/19/2017] [Indexed: 06/08/2023]
Abstract
Although doping with appropriate heteroatoms is a powerful way of increasing visible light absorption of wide-bandgap metal oxide photocatalysts, the incorporation of heteroatoms into the photocatalysts usually leads to the increase of deleterious recombination centers of photogenerated charge carriers. Here, a conceptual strategy of increasing visible light absorption without causing additional recombination centers by constructing an ultrathin insulating heterolayer of amorphous boron oxynitride on wide-bandgap photocatalysts is shown. The nature of this strategy is that the active composition nitrogen in the heterolayer can noninvasively modify the electronic structure of metal oxides for visible light absorption through the interface contact between the heterolayer and metal oxides. The photocatalysts developed show significant improvements in photocatalytic activity under both UV-vis and visible light irradiation compared to the doped counterparts by conventional doping process. These results may provide opportunities for flexibly tailoring the electronic structure of metal oxides.
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Affiliation(s)
- Zongbao Yu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Xing-Qiu Chen
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Xiangdong Kang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Yingpeng Xie
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Huaze Zhu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Shoulong Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Sami Ullah
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Hui Ma
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Lianzhou Wang
- Nanomaterials Centre, School of Chemical Engineering and AIBN, The University of Queensland, St Lucia, Brisbane, QLD, 4072, Australia
| | - Gang Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang, 110016, China
| | - Xiuliang Ma
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Hui-Ming Cheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- Low-Dimensional Material and Device Laboratory, Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, 1001 Xueyuan Road, Shenzhen, 518055, China
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
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83
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Dong G, Wang X, Chen Z, Lu Z. Enhanced Photocatalytic Activity of Vacuum-activated TiO2
Induced by Oxygen Vacancies. Photochem Photobiol 2018; 94:472-483. [DOI: 10.1111/php.12874] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 11/24/2017] [Indexed: 01/16/2023]
Affiliation(s)
- Guoyan Dong
- College of Materials Science and Engineering; South China University of Technology; Guangzhou China
| | - Xin Wang
- College of Materials Science and Engineering; South China University of Technology; Guangzhou China
| | - Zhiwu Chen
- College of Materials Science and Engineering; South China University of Technology; Guangzhou China
- State Key Laboratory of Pulp and Paper Engineering; South China University of Technology; Guangzhou China
| | - Zhenya Lu
- College of Materials Science and Engineering; South China University of Technology; Guangzhou China
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84
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Yuan X, Xu Y, Meng H, Han Y, Wu J, Xu J, Zhang X. Fabrication of ternary polyaniline-graphene oxide-TiO2 hybrid films with enhanced activity for photoelectrocatalytic hydrogen production. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.10.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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85
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86
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Yang L, Yang Y, Liu T, Ma X, Lee SW, Wang Y. Oxygen vacancies confined in SnO2 nanoparticles for glorious photocatalytic activities from the UV, visible to near-infrared region. NEW J CHEM 2018. [DOI: 10.1039/c8nj00668g] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For the purpose of effectively utilizing solar energy, tailoring of the energy band configuration represents an effective approach to the exploration and development of full-spectrum-responsive photocatalysts with advanced performance.
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Affiliation(s)
- Linfen Yang
- Key Laboratory for Special Function Materials and Structural Design of the Ministryof the Education
- School of Physical Science and Technology
- Lanzhou University
- Lanzhou
- China
| | - Yuanjie Yang
- Key Laboratory for Special Function Materials and Structural Design of the Ministryof the Education
- School of Physical Science and Technology
- Lanzhou University
- Lanzhou
- China
| | - Tongyao Liu
- Key Laboratory for Special Function Materials and Structural Design of the Ministryof the Education
- School of Physical Science and Technology
- Lanzhou University
- Lanzhou
- China
| | - Xinlong Ma
- Key Laboratory for Special Function Materials and Structural Design of the Ministryof the Education
- School of Physical Science and Technology
- Lanzhou University
- Lanzhou
- China
| | | | - Yuhua Wang
- Key Laboratory for Special Function Materials and Structural Design of the Ministryof the Education
- School of Physical Science and Technology
- Lanzhou University
- Lanzhou
- China
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87
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Hu Q, Li J, Li Q, Wang G, Huang J, Huang X. One-step synthesis of nonstoichiometric TiO2 nanorod films for enhanced photocatalytic H2 evolution. Dalton Trans 2018; 47:4478-4485. [DOI: 10.1039/c8dt00066b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nonstoichiometric TiO2 nanorod films with high stability and excellent H2 generation activities have been obtained by a facile one-step sputtering method.
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Affiliation(s)
- Qianqian Hu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| | - Jianrong Li
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Qiaohong Li
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Guo Wang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| | - Jiquan Huang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| | - Xiaoying Huang
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
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88
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De Silva NL, Jayasundera ACA, Folger A, Kasian O, Zhang S, Yan CF, Scheu C, Bandara J. Superior solar-to-hydrogen energy conversion efficiency by visible light-driven hydrogen production via highly reduced Ti2+/Ti3+ states in a blue titanium dioxide photocatalyst. Catal Sci Technol 2018. [DOI: 10.1039/c8cy01212a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A catalytic hydrogen production system was developed with TiO2 that contains Ti3+/Ti2+ reduced states which act as both visible and IR light harvesting components as well as the catalytic site.
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Affiliation(s)
| | | | - A. Folger
- Max-Planck-Institut für Eisenforschung GmbH
- D-40237 Düsseldorf
- Germany
| | - O. Kasian
- Max-Planck-Institut für Eisenforschung GmbH
- D-40237 Düsseldorf
- Germany
| | - S. Zhang
- Max-Planck-Institut für Eisenforschung GmbH
- D-40237 Düsseldorf
- Germany
| | - Chang-Feng Yan
- Hydrogen Production and Utilization Laboratory
- Key Laboratory of Renewable Energy
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences
- Guangzhou
- China
| | - C. Scheu
- Max-Planck-Institut für Eisenforschung GmbH
- D-40237 Düsseldorf
- Germany
| | - J. Bandara
- National Institute of Fundamental Studies
- Kandy
- Sri Lanka
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89
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Synthesis of Ti3+ and P5+ co-doped TiO2 nanocrystal with enhanced visible light photocatalytic activity. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2017.07.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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90
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p-Arsanilic acid stabilizing titanium-oxo clusters with various core structures and light absorption behaviours. INORG CHEM COMMUN 2017. [DOI: 10.1016/j.inoche.2017.09.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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91
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He YP, Yuan LB, Chen GH, Lin QP, Wang F, Zhang L, Zhang J. Water-Soluble and Ultrastable Ti4L6 Tetrahedron with Coordination Assembly Function. J Am Chem Soc 2017; 139:16845-16851. [DOI: 10.1021/jacs.7b09463] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yan-Ping He
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Lv-Bing Yuan
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Guang-Hui Chen
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Qi-Pu Lin
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Fei Wang
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Lei Zhang
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Jian Zhang
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
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92
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Wang J, Mao C, Feng P, Zheng N. Visible-Light-Mediated [4+2] Annulation of N-Cyclobutylanilines with Alkynes Catalyzed by Self-Doped Ti 3+ @TiO 2. Chemistry 2017; 23:15396-15403. [PMID: 28608493 PMCID: PMC5813488 DOI: 10.1002/chem.201701587] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Indexed: 01/31/2023]
Abstract
We herein report a visible-light-mediated heterogeneous [4+2] annulation of N-cyclobutylanilines with alkynes catalyzed by self-doped Ti3+ @TiO2 . The self-doped Ti3+ @TiO2 is stable under photooxidation conditions, easy to recycle, and can be used multiple times without appreciable loss of activity. Extensive mechanistic studies suggest that the annulation reaction is mediated by singlet oxygen, which is generated through the photosensitization of oxygen in the air by the self-doped Ti3+ @TiO2 . In contrast, the homogeneous variant catalyzed by a far more expensive iridium complex proceeds under an inert atmosphere, which indicates a different mechanism. The substrate scopes of the two processes are comparable.
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Affiliation(s)
- Jiang Wang
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, 72701, USA
| | - Chengyu Mao
- Department of Chemistry, University of California, Riverside, California, 92521, USA
| | - Pingyun Feng
- Department of Chemistry, University of California, Riverside, California, 92521, USA
| | - Nan Zheng
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, 72701, USA
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93
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Zhou Y, Wen T, Zhang X, Chang B, Kong W, Guo Y, Yang B, Wang Y. A Multiple Structure-Design Strategy towards Ultrathin Niobate Perovskite Nanosheets with Thickness-Dependent Photocatalytic Hydrogen-Evolution Performance. Chem Asian J 2017; 12:2727-2733. [DOI: 10.1002/asia.201701001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 08/18/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Yannan Zhou
- Institute of Nanostructured Functional Materials; Huanghe Science and Technology College; Zhengzhou Henan 450006 P.R. China
- Henan Provincial Key Laboratory of Nano-composite materials and Applications; Zhengzhou Henan 450006 P.R. China
| | - Ting Wen
- Institute of Nanostructured Functional Materials; Huanghe Science and Technology College; Zhengzhou Henan 450006 P.R. China
- Henan Provincial Key Laboratory of Nano-composite materials and Applications; Zhengzhou Henan 450006 P.R. China
| | - Xiaofan Zhang
- Institute of Nanostructured Functional Materials; Huanghe Science and Technology College; Zhengzhou Henan 450006 P.R. China
- Henan Provincial Key Laboratory of Nano-composite materials and Applications; Zhengzhou Henan 450006 P.R. China
| | - Binbin Chang
- Institute of Nanostructured Functional Materials; Huanghe Science and Technology College; Zhengzhou Henan 450006 P.R. China
- Henan Provincial Key Laboratory of Nano-composite materials and Applications; Zhengzhou Henan 450006 P.R. China
| | - Weiqian Kong
- Institute of Nanostructured Functional Materials; Huanghe Science and Technology College; Zhengzhou Henan 450006 P.R. China
- Henan Provincial Key Laboratory of Nano-composite materials and Applications; Zhengzhou Henan 450006 P.R. China
| | - Yanzhen Guo
- Institute of Nanostructured Functional Materials; Huanghe Science and Technology College; Zhengzhou Henan 450006 P.R. China
- Henan Provincial Key Laboratory of Nano-composite materials and Applications; Zhengzhou Henan 450006 P.R. China
| | - Baocheng Yang
- Institute of Nanostructured Functional Materials; Huanghe Science and Technology College; Zhengzhou Henan 450006 P.R. China
- Henan Provincial Key Laboratory of Nano-composite materials and Applications; Zhengzhou Henan 450006 P.R. China
| | - Yonggang Wang
- Center for High Pressure Science and Technology Advanced Research, HPSTAR; Beijing 100094 P.R. China
- HPSynC, Geophysical Laboratory; Carnegie Institution of Washington, Argonne; IL 60439 USA
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94
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Fang W, Xing M, Zhang J. Modifications on reduced titanium dioxide photocatalysts: A review. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2017. [DOI: 10.1016/j.jphotochemrev.2017.05.003] [Citation(s) in RCA: 186] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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95
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Singh N, Prakash J, Misra M, Sharma A, Gupta RK. Dual Functional Ta-Doped Electrospun TiO 2 Nanofibers with Enhanced Photocatalysis and SERS Detection for Organic Compounds. ACS APPLIED MATERIALS & INTERFACES 2017; 9:28495-28507. [PMID: 28776975 DOI: 10.1021/acsami.7b07571] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
There is a growing interest in multifunctional nanomaterials for the detection as well as degradation of organic contaminants in the water. In this work, we report on the development of dual functional TiO2 nanofibers (TNF) with different tantalum (Ta) doping (1-10 mol %) by a simple electrospinning technique. As-prepared TNF show mesoporous dominant structure, which are favorable for photocatalytic activity due to the presence of catalytic spots. Ta doping decreases the crystalline size within TiO2 matrix because of the incorporation of Ta5+ ions and restricts the phase transformation from anatase to rutile. Ta doping slightly enhances the visible light absorption because of the Ti3+ defects sites created upon Ta5+ doping. The effect of Ta doping within TiO2 matrix was systematically studied for the degradation of methylene blue (MB) dye under ultraviolet (UV) and solar light irradiation. The 5% Ta-doped TNF were found to be optimal and showed 5.1 and 2.2 times higher photocatalytic activity as compared to TNF under UV and solar light irradiation, respectively. The effect of Ta doping for the detection of MB molecules was also studied by surface enhanced Raman scattering (SERS). It was observed that 5% Ta-doped TNF exhibit higher photocatalytic activity and enhanced SERS signals of adsorbed MB molecules as compared to the TNF. The enhanced photocatalytic and SERS activities can be explained as combined effects of enhanced visible light absorption, lower crystalline size, and slightly higher surface area. The observed results show that Ta doping induces new energy levels below the conduction band of TiO2 because of Ti3+ defects, which inhibit the photogenerated charge recombination acting as electron traps and promote charge transfer mechanism acting as an intermediate state for TiO2 to MB molecule electron transfer, and are mainly responsible for the enhanced photocatalytic and SERS activities, respectively.
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Affiliation(s)
| | - Jai Prakash
- Department of Physics, University of the Free State , Bloemfontein 9300, South Africa
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96
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Preparation of Ag/AgBr–Bi2MoO6 Plasmonic Photocatalyst Films with Highly Enhanced Photocatalytic Activity. J Inorg Organomet Polym Mater 2017. [DOI: 10.1007/s10904-017-0590-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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97
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Tee SY, Win KY, Teo WS, Koh L, Liu S, Teng CP, Han M. Recent Progress in Energy-Driven Water Splitting. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2017; 4:1600337. [PMID: 28546906 PMCID: PMC5441509 DOI: 10.1002/advs.201600337] [Citation(s) in RCA: 268] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 09/30/2016] [Indexed: 05/12/2023]
Abstract
Hydrogen is readily obtained from renewable and non-renewable resources via water splitting by using thermal, electrical, photonic and biochemical energy. The major hydrogen production is generated from thermal energy through steam reforming/gasification of fossil fuel. As the commonly used non-renewable resources will be depleted in the long run, there is great demand to utilize renewable energy resources for hydrogen production. Most of the renewable resources may be used to produce electricity for driving water splitting while challenges remain to improve cost-effectiveness. As the most abundant energy resource, the direct conversion of solar energy to hydrogen is considered the most sustainable energy production method without causing pollutions to the environment. In overall, this review briefly summarizes thermolytic, electrolytic, photolytic and biolytic water splitting. It highlights photonic and electrical driven water splitting together with photovoltaic-integrated solar-driven water electrolysis.
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Affiliation(s)
- Si Yin Tee
- Institute of Materials Research and EngineeringAgency for ScienceTechnology and Research2 Fusionopolis WaySingapore138634
- Department of Biomedical EngineeringNational University of Singapore9 Engineering DriveSingapore117576
| | - Khin Yin Win
- Institute of Materials Research and EngineeringAgency for ScienceTechnology and Research2 Fusionopolis WaySingapore138634
| | - Wee Siang Teo
- School of Material Science and EngineeringNanyang Technological UniversitySingapore639798
| | - Leng‐Duei Koh
- Institute of Materials Research and EngineeringAgency for ScienceTechnology and Research2 Fusionopolis WaySingapore138634
- Department of Biomedical EngineeringNational University of Singapore9 Engineering DriveSingapore117576
| | - Shuhua Liu
- Institute of Materials Research and EngineeringAgency for ScienceTechnology and Research2 Fusionopolis WaySingapore138634
| | - Choon Peng Teng
- Institute of Materials Research and EngineeringAgency for ScienceTechnology and Research2 Fusionopolis WaySingapore138634
- Department of Biomedical EngineeringNational University of Singapore9 Engineering DriveSingapore117576
| | - Ming‐Yong Han
- Institute of Materials Research and EngineeringAgency for ScienceTechnology and Research2 Fusionopolis WaySingapore138634
- Department of Biomedical EngineeringNational University of Singapore9 Engineering DriveSingapore117576
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98
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Fan K, Nie WX, Wang LP, Liao CH, Bao SS, Zheng LM. Defective Metal-Organic Frameworks Incorporating Iridium-Based Metalloligands: Sorption and Dye Degradation Properties. Chemistry 2017; 23:6615-6624. [DOI: 10.1002/chem.201700365] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Kun Fan
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210023 P.R. China
| | - Wei-Xuan Nie
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210023 P.R. China
| | - Lu-Ping Wang
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210023 P.R. China
| | - Chwen-Haw Liao
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210023 P.R. China
| | - Song-Song Bao
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210023 P.R. China
| | - Li-Min Zheng
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210023 P.R. China
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99
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100
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Zhang X, Zuo G, Lu X, Tang C, Cao S, Yu M. Anatase TiO2 sheet-assisted synthesis of Ti3+ self-doped mixed phase TiO2 sheet with superior visible-light photocatalytic performance: Roles of anatase TiO2 sheet. J Colloid Interface Sci 2017; 490:774-782. [DOI: 10.1016/j.jcis.2016.12.010] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 12/06/2016] [Indexed: 11/16/2022]
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