51
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Zhan X, Wang H, Zhou G, Chen L, Sun Y, Zhao Y, Liu J, Shi H. Uracil-Doped Graphitic Carbon Nitride for Enhanced Photocatalytic Performance. ACS APPLIED MATERIALS & INTERFACES 2021; 13:12118-12130. [PMID: 33655747 DOI: 10.1021/acsami.1c00771] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
g-C3N4 is a visible-light photocatalyst with a suitable band gap and good stability. Moreover, g-C3N4 is considered to be earth-abundant, which makes it an appealing photocatalyst. However, due to its small specific surface area, low utilization of visible light, and high photogenerated electron-hole pair recombination rate, the photocatalytic activity of g-C3N4 remains unsatisfactory. In this work, a highly efficient nonmetallic photocatalyst, i.e., g-C3N4 doped with uracil (denoted U-C3N4) was successfully developed. Based on the various characterizations and calculations, it is shown that the triazine group in g-C3N4 is replaced with the diazine group in uracil. This occurrence leads to the formation of a new electron-transfer pathway between triazine groups, which can promote the separation of photogenerated electrons and holes. Concurrently, due to the ultrathin structure of the as-prepared U-C3N4, the material possessed a larger specific surface area than pristine g-C3N4, which can provide more active sites. Furthermore, the transfer pathway between the electron and hole was also shortened, and the recombination of the electron and hole was inhibited. According to the results, an optimal hydrogen evolution rate of 31.7 mol h-1 g-1 was achieved by U-C3N4, which is 5.1 times higher as compared to that achieved by pristine g-C3N4 (6.26 mol h-1 g-1). For the photocatalytic degradation of rhodamine B, the reaction rate constant of U-C3N4 (11.3 × 10-2 min-1) is about 5.5 times that of g-C3N4 (2.07 × 10-2 min-1). Furthermore, the uracil-doped catalyst was also able to demonstrate good stability after five successive runs.
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Affiliation(s)
- Xiaohui Zhan
- College of Environment & Resource Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - He Wang
- College of Environment & Resource Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Gaoyan Zhou
- College of Environment & Resource Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Lei Chen
- College of Environment & Resource Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Yanping Sun
- College of Environment & Resource Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Yue Zhao
- College of Environment & Resource Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - JunYan Liu
- College of Environment & Resource Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Huixiang Shi
- College of Environment & Resource Sciences, Zhejiang University, Hangzhou 310058, P. R. China
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52
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Liu Z, Yang H, Wang J, Yuan Y, Hills-Kimball K, Cai T, Wang P, Tang A, Chen O. Synthesis of Lead-Free Cs 2AgBiX 6 (X = Cl, Br, I) Double Perovskite Nanoplatelets and Their Application in CO 2 Photocatalytic Reduction. NANO LETTERS 2021; 21:1620-1627. [PMID: 33570415 DOI: 10.1021/acs.nanolett.0c04148] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Morphology control represents an important strategy for the development of functional nanomaterials and has yet to be achieved in the case of promising lead-free double perovskite materials so far. In this work, high-quality Cs2AgBiX6 (X = Cl, Br, I) two-dimensional nanoplatelets were synthesized through a newly developed synthetic procedure. By analyzing the optical, morphological, and structural evolutions of the samples during synthesis, we elucidated that the growth mechanism of lead-free double perovskite nanoplatelets followed a lateral growth process from mono-octahedral-layer (half-unit-cell in thickness) cluster-based nanosheets to multilayer (three to four unit cells in thickness) nanoplatelets. Furthermore, we demonstrated that Cs2AgBiBr6 nanoplatelets possess a better performance in photocatalytic CO2 reduction compared with their nanocube counterpart. Our work demonstrates the first example with two-dimensional morphology of this important class of lead-free perovskite materials, shedding light on the synthetic manipulation and the application integration of such promising materials.
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Affiliation(s)
- Zhenyang Liu
- Department of Chemistry, Brown University, 324 Brook Street, Providence, Rhode Island 02912, United States
- Key Laboratory of Luminescence and Optical Information Ministry of Education, School of Science, Beijing Jiaotong University, Beijing 100044, China
| | - Hanjun Yang
- Department of Chemistry, Brown University, 324 Brook Street, Providence, Rhode Island 02912, United States
| | - Junyu Wang
- Department of Chemistry, Brown University, 324 Brook Street, Providence, Rhode Island 02912, United States
| | - Yucheng Yuan
- Department of Chemistry, Brown University, 324 Brook Street, Providence, Rhode Island 02912, United States
| | - Katie Hills-Kimball
- Department of Chemistry, Brown University, 324 Brook Street, Providence, Rhode Island 02912, United States
| | - Tong Cai
- Department of Chemistry, Brown University, 324 Brook Street, Providence, Rhode Island 02912, United States
| | - Ping Wang
- Department of Chemistry, Brown University, 324 Brook Street, Providence, Rhode Island 02912, United States
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
| | - Aiwei Tang
- Key Laboratory of Luminescence and Optical Information Ministry of Education, School of Science, Beijing Jiaotong University, Beijing 100044, China
| | - Ou Chen
- Department of Chemistry, Brown University, 324 Brook Street, Providence, Rhode Island 02912, United States
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53
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Mukherjee A, Dutta P, Bhattacharyya B, Rajasekar GP, Simlandy AK, Pandey A. Ultrafast spectroscopic investigation of the artificial photosynthetic activity of CuAlS
2
/ZnS quantum dots. NANO SELECT 2021. [DOI: 10.1002/nano.202000219] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Arpita Mukherjee
- Indian Institute of Science Solid State and Structural Chemistry Unit Bangalore 560012 India
| | - Pranab Dutta
- Indian Institute of Science Solid State and Structural Chemistry Unit Bangalore 560012 India
| | - Biswajit Bhattacharyya
- Indian Institute of Science Solid State and Structural Chemistry Unit Bangalore 560012 India
| | - Guru Pratheep Rajasekar
- Indian Institute of Science Solid State and Structural Chemistry Unit Bangalore 560012 India
| | - Amit Kumar Simlandy
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012 India
| | - Anshu Pandey
- Indian Institute of Science Solid State and Structural Chemistry Unit Bangalore 560012 India
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54
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Jelmy EJ, Thomas N, Mathew DT, Louis J, Padmanabhan NT, Kumaravel V, John H, Pillai SC. Impact of structure, doping and defect-engineering in 2D materials on CO2 capture and conversion. REACT CHEM ENG 2021. [DOI: 10.1039/d1re00214g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
2D material based strategies for adsorption and conversion of CO2 to value-added products.
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Affiliation(s)
- E. J. Jelmy
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kerala, India
| | - Nishanth Thomas
- Nanotechnology and Bio-engineering Research Group, Department of Environmental Science, Institute of Technology Sligo, Sligo, Ireland
- Centre for Precision Engineering, Materials and Manufacturing Research (PEM), Institute of Technology Sligo, Sligo, Ireland
| | - Dhanu Treasa Mathew
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kerala, India
| | - Jesna Louis
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kerala, India
- Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kerala, India
| | - Nisha T. Padmanabhan
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kerala, India
| | - Vignesh Kumaravel
- Nanotechnology and Bio-engineering Research Group, Department of Environmental Science, Institute of Technology Sligo, Sligo, Ireland
- Centre for Precision Engineering, Materials and Manufacturing Research (PEM), Institute of Technology Sligo, Sligo, Ireland
| | - Honey John
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kerala, India
- Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kerala, India
| | - Suresh C. Pillai
- Nanotechnology and Bio-engineering Research Group, Department of Environmental Science, Institute of Technology Sligo, Sligo, Ireland
- Centre for Precision Engineering, Materials and Manufacturing Research (PEM), Institute of Technology Sligo, Sligo, Ireland
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55
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Zhang S, Si Y, Li B, Yang L, Dai W, Luo S. Atomic-Level and Modulated Interfaces of Photocatalyst Heterostructure Constructed by External Defect-Induced Strategy: A Critical Review. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2004980. [PMID: 33289948 DOI: 10.1002/smll.202004980] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/26/2020] [Indexed: 06/12/2023]
Abstract
Despite the existence of numerous photocatalyst heterostructures, their separation efficiency and charge flow precision remain low due to the poor study on interfacial properties. The photocatalysts with confined defects can effectively control the photogenerated carrier migration, but the metastability of such defects considerably decreases the photocatalyst stability. Meanwhile, the introduction of defective region can increase the coordinative unsaturation and delocalize local electrons to promote their interactions with the molecules/ions in that region. The selective growth of modulated heterogeneous interface by defect-induced strategy may not only increase the stability of defective structures, but also enhance the migration of interfacial charges. Using this method, photocatalytic heterostructures with low contact resistances and intimate interfaces are constructed to achieve the optimal charge migration in terms of efficiency and accuracy. In this work, the point, linear, and planar heterogeneous interfaces and related defect engineering techniques are discussed. Particularly, it is focused on the external, defect-induced interfacial heterogeneities with various spatial and dimensional configurations, which exhibit modulated and controllable interfacial properties. Furthermore, the main aspects of fabricating photocatalyst heterostructures by the defect-induced strategy, including the i) controllable generation of defects, ii) advanced characterization methods, and iii) elaborate construction of the minimal interface, are described.
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Affiliation(s)
- Shuqu Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi Province, 330063, P. R. China
| | - Yanmei Si
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi Province, 330063, P. R. China
| | - Bing Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi Province, 330063, P. R. China
| | - Lixia Yang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi Province, 330063, P. R. China
| | - Weili Dai
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi Province, 330063, P. R. China
| | - Shenglian Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi Province, 330063, P. R. China
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56
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Patnaik S, Behera A, Parida K. A review on g-C 3N 4/graphene nanocomposites: multifunctional roles of graphene in the nanohybrid photocatalyst toward photocatalytic applications. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00784j] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Schematic representation of the g-C3N4/graphene hybrid photocatalyst.
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Affiliation(s)
- Sulagna Patnaik
- Centre for Nanoscience and Nanotechnology, Siksha ‘O’ Anusandhan, Bhubaneswar 751030, India
| | - Arjun Behera
- Centre for Nanoscience and Nanotechnology, Siksha ‘O’ Anusandhan, Bhubaneswar 751030, India
| | - Kulamani Parida
- Centre for Nanoscience and Nanotechnology, Siksha ‘O’ Anusandhan, Bhubaneswar 751030, India
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57
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Chen Z, Ma X, Hu J, Wan F, Xu P, Wang G, Wang M, Deng S, Huang C. Band alignment of Zr 2CO 2/MoS 2 heterostructures under an electric field. NEW J CHEM 2021. [DOI: 10.1039/d1nj02440j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Tunable energy bands of Zr2CO2/MoS2 heterostructures by an external electric field.
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Affiliation(s)
- Zhangze Chen
- School of Science, Hubei University of Technology, Wuhan 430068, China
| | - Xinguo Ma
- School of Science, Hubei University of Technology, Wuhan 430068, China
| | - Jisong Hu
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Fengda Wan
- School of Science, Hubei University of Technology, Wuhan 430068, China
| | - Peng Xu
- School of Science, Hubei University of Technology, Wuhan 430068, China
| | - Guoyu Wang
- School of Science, Hubei University of Technology, Wuhan 430068, China
| | - Mei Wang
- School of Science, Hubei University of Technology, Wuhan 430068, China
| | - Shuiquan Deng
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Chuyun Huang
- School of Science, Hubei University of Technology, Wuhan 430068, China
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58
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Yang G, Liang Y, Yang J, Wang K, Zeng Z, Xiong Z. Supporting ultrathin “fish scale-like” BiOBr nanosheets on Bi 6Mo 2O 15 sub-microwires for boosting photocatalytic performance. CrystEngComm 2021. [DOI: 10.1039/d1ce01193f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A BiOBr/Bi6Mo2O15 edge-on heterostructure with fast electron transport could improve interface conductivity and accelerate charge-separation efficiency.
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Affiliation(s)
- Gui Yang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Yujun Liang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Jian Yang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Kun Wang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Zikang Zeng
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Zhuoran Xiong
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
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59
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Eke J, Banks L, Mottaleb MA, Morris AJ, Tsyusko OV, Escobar IC. Dual-Functional Phosphorene Nanocomposite Membranes for the Treatment of Perfluorinated Water: An Investigation of Perfluorooctanoic Acid Removal via Filtration Combined with Ultraviolet Irradiation or Oxygenation. MEMBRANES 2020; 11:membranes11010018. [PMID: 33375603 PMCID: PMC7824437 DOI: 10.3390/membranes11010018] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/10/2020] [Accepted: 12/21/2020] [Indexed: 01/06/2023]
Abstract
Nanomaterials with tunable properties show promise because of their size-dependent electronic structure and controllable physical properties. The purpose of this research was to develop and validate environmentally safe nanomaterial-based approach for treatment of drinking water including removal and degradation of per- and polyfluorinated chemicals (PFAS). PFAS are surfactant chemicals with broad uses that are now recognized as contaminants with a significant risk to human health. They are commonly used in household and industrial products. They are extremely persistent in the environment because they possess both hydrophobic fluorine-saturated carbon chains and hydrophilic functional groups, along with being oleophobic. Traditional drinking water treatment technologies are usually ineffective for the removal of PFAS from contaminated waters, because they are normally present in exiguous concentrations and have unique properties that make them persistent. Therefore, there is a critical need for safe and efficient remediation methods for PFAS, particularly in drinking water. The proposed novel approach has also a potential application for decreasing PFAS background levels in analytical systems. In this study, nanocomposite membranes composed of sulfonated poly ether ether ketone (SPEEK) and two-dimensional phosphorene were fabricated, and they obtained on average 99% rejection of perfluorooctanoic acid (PFOA) alongside with a 99% removal from the PFOA that accumulated on surface of the membrane. The removal of PFOA accumulated on the membrane surface achieved 99% after the membranes were treated with ultraviolet (UV) photolysis and liquid aerobic oxidation.
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Affiliation(s)
- Joyner Eke
- Center of Membrane Sciences, Department of Chemical and Materials Engineering, University of Kentucky, 177 FPAT, Lexington, KY 40506-0046, USA; (J.E.); (L.B.)
| | - Lillian Banks
- Center of Membrane Sciences, Department of Chemical and Materials Engineering, University of Kentucky, 177 FPAT, Lexington, KY 40506-0046, USA; (J.E.); (L.B.)
| | - M. Abdul Mottaleb
- College of Medicine, University of Kentucky, 177 FPAT, Lexington, KY 40506-0046, USA; (M.A.M.); (A.J.M.)
- Institute of Drug & Biotherapeutic Innovation, Saint Louis University, 1100 South Grand Blvd, Saint Louis, MO 63104, USA
| | - Andrew J. Morris
- College of Medicine, University of Kentucky, 177 FPAT, Lexington, KY 40506-0046, USA; (M.A.M.); (A.J.M.)
| | - Olga V. Tsyusko
- Department of Plant and Soil Sciences, University of Kentucky, 1100 S. Limestone St., Lexington, KY 40546-0091, USA;
| | - Isabel C. Escobar
- Center of Membrane Sciences, Department of Chemical and Materials Engineering, University of Kentucky, 177 FPAT, Lexington, KY 40506-0046, USA; (J.E.); (L.B.)
- Correspondence:
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61
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Design of Ag/g-C3N4 on TiO2 nanotree arrays via ultrasonic-assisted spin coating as an efficient photoanode for solar water oxidation: Morphology modification and junction improvement. Catal Today 2020. [DOI: 10.1016/j.cattod.2020.08.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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62
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Chen J, Zhang X, Shi X, Bi F, Yang Y, Wang Y. Synergistic effects of octahedral TiO2-MIL-101(Cr) with two heterojunctions for enhancing visible-light photocatalytic degradation of liquid tetracycline and gaseous toluene. J Colloid Interface Sci 2020; 579:37-49. [DOI: 10.1016/j.jcis.2020.06.042] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 06/08/2020] [Accepted: 06/09/2020] [Indexed: 10/24/2022]
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63
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Zhou C, Shi R, Waterhouse GI, Zhang T. Recent advances in niobium-based semiconductors for solar hydrogen production. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213399] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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64
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Jeong GH, Sasikala SP, Yun T, Lee GY, Lee WJ, Kim SO. Nanoscale Assembly of 2D Materials for Energy and Environmental Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907006. [PMID: 32243010 DOI: 10.1002/adma.201907006] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/17/2019] [Indexed: 06/11/2023]
Abstract
Rational design of 2D materials is crucial for the realization of their profound implications in energy and environmental fields. The past decade has witnessed significant developments in 2D material research, yet a number of critical challenges remain for real-world applications. Nanoscale assembly, precise control over the orientational and positional ordering, and complex interfaces among 2D layers are essential for the continued progress of 2D materials, especially for energy storage and conversion and environmental remediation. Herein, recent progress, the status, future prospects, and challenges associated with nanoscopic assembly of 2D materials are highlighted, specifically targeting energy and environmental applications. Geometric dimensional diversity of 2D material assembly is focused on, based on novel assembly mechanisms, including 1D fibers from the colloidal liquid crystalline phase, 2D films by interfacial tension (Marangoni effect), and 3D nanoarchitecture assembly by electrochemical processes. Relevant critical advantages of 2D material assembly are highlighted for application fields, including secondary batteries, supercapacitors, catalysts, gas sensors, desalination, and water decontamination.
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Affiliation(s)
- Gyoung Hwa Jeong
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Suchithra Padmajan Sasikala
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Taeyeong Yun
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Gil Yong Lee
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Won Jun Lee
- Department of Fiber System Engineering, Dankook University, Yongin-si, Gyeonggi-do, 16890, Republic of Korea
| | - Sang Ouk Kim
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
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Khan K, Tareen AK, Aslam M, Sagar RUR, Zhang B, Huang W, Mahmood A, Mahmood N, Khan K, Zhang H, Guo Z. Recent Progress, Challenges, and Prospects in Two-Dimensional Photo-Catalyst Materials and Environmental Remediation. NANO-MICRO LETTERS 2020; 12:167. [PMID: 34138161 PMCID: PMC7770787 DOI: 10.1007/s40820-020-00504-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 07/12/2020] [Indexed: 05/03/2023]
Abstract
The successful photo-catalyst library gives significant information on feature that affects photo-catalytic performance and proposes new materials. Competency is considerably significant to form multi-functional photo-catalysts with flexible characteristics. Since recently, two-dimensional materials (2DMs) gained much attention from researchers, due to their unique thickness-dependent uses, mainly for photo-catalytic, outstanding chemical and physical properties. Photo-catalytic water splitting and hydrogen (H2) evolution by plentiful compounds as electron (e-) donors is estimated to participate in constructing clean method for solar H2-formation. Heterogeneous photo-catalysis received much research attention caused by their applications to tackle numerous energy and environmental issues. This broad review explains progress regarding 2DMs, significance in structure, and catalytic results. We will discuss in detail current progresses of approaches for adjusting 2DMs-based photo-catalysts to assess their photo-activity including doping, hetero-structure scheme, and functional formation assembly. Suggested plans, e.g., doping and sensitization of semiconducting 2DMs, increasing electrical conductance, improving catalytic active sites, strengthening interface coupling in semiconductors (SCs) 2DMs, forming nano-structures, building multi-junction nano-composites, increasing photo-stability of SCs, and using combined results of adapted approaches, are summed up. Hence, to further improve 2DMs photo-catalyst properties, hetero-structure design-based 2DMs' photo-catalyst basic mechanism is also reviewed.
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Affiliation(s)
- Karim Khan
- School of Electrical Engineering and Intelligentization, Dongguan University of Technology (DGUT), Dongguan, 523808, Guangdong, People's Republic of China.
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science and Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen, 518060, People's Republic of China.
| | - Ayesha Khan Tareen
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science and Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen, 518060, People's Republic of China
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Muhammad Aslam
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science and Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen, 518060, People's Republic of China
- Government Degree College Paharpur, Gomel University, Dera Ismail Khan, K.P.K, Islamic Republic of Pakistan
| | - Rizwan Ur Rehman Sagar
- School of Materials Science and Engineering, Jiangxi University of Science and Technology, Jiangxi, 341000, People's Republic of China
| | - Bin Zhang
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science and Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Weichun Huang
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science and Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Asif Mahmood
- School of Chemical and Bio-Molecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Nasir Mahmood
- School of Engineering, The Royal Melbourne Institute of Technology (RMIT) University, Melbourne, VIC, Australia
| | - Kishwar Khan
- Research Laboratory of Electronics (RLE), Massachusetts Institute of Technology (MIT), Cambridge, MA, USA
| | - Han Zhang
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science and Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen, 518060, People's Republic of China.
| | - Zhongyi Guo
- School of Electrical Engineering and Intelligentization, Dongguan University of Technology (DGUT), Dongguan, 523808, Guangdong, People's Republic of China.
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Defect engineered mesoporous 2D graphitic carbon nitride nanosheet photocatalyst for rhodamine B degradation under LED light illumination. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112582] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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67
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Functional groups to modify g-C3N4 for improved photocatalytic activity of hydrogen evolution from water splitting. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.08.020] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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68
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Wang J, Yang S, Sun H, Qiu J, Men Y. Highly improved soot combustion performance over synergetic Mn xCe 1-xO 2 solid solutions within mesoporous nanosheets. J Colloid Interface Sci 2020; 577:355-367. [PMID: 32485417 DOI: 10.1016/j.jcis.2020.05.090] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/10/2020] [Accepted: 05/23/2020] [Indexed: 10/24/2022]
Abstract
Constructing synergetic bimetal oxide solid solutions with exceptional catalytic performances for efficient soot elimination is becoming a research frontier in environmental catalysis. Herein, synergetic MnxCe1-xO2 solid solutions within mesoporous nanosheets, synthesized by a facile hydrothermal method for the first time, have been performed to catalyze the NOx-assisted soot combustion. Research results validate that MnxCe1-xO2 solid solutions displayed highly improved soot combustion performance with respect to activity and selectivity, mainly due to the synergetic effect by combining factors of the unique mesoporous nanosheet-shaped feature, the enhanced chemical nature stemmed from high-valence Mn species, abundant active oxygen species originated from the enriched oxygen vacancies and the escalated redox properties. Furthermore, the enhanced NOx storage and oxidation abilities, mainly derived from integrating reciprocal merits of high-valence Mn species and CeO2, were also responsible for the highly improved soot combustion performance via NOx-assisted mechanism. Moreover, MnxCe1-xO2 solid solutions also exhibited excellent reusability due to the unique morphological structure and stable crystal phase, showing good potential in practical applications.
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Affiliation(s)
- Jinguo Wang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China.
| | - Shuaifeng Yang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
| | - Honghua Sun
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
| | - Jianqiang Qiu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
| | - Yong Men
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
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69
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Guan G, Ye E, You M, Li Z. Hybridized 2D Nanomaterials Toward Highly Efficient Photocatalysis for Degrading Pollutants: Current Status and Future Perspectives. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1907087. [PMID: 32301226 DOI: 10.1002/smll.201907087] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 02/29/2020] [Accepted: 03/02/2020] [Indexed: 06/11/2023]
Abstract
Organic pollutants including industrial dyes and chemicals and agricultural waste have become a major environmental issue in recent years. As an alternative to simple adsorption, photocatalytic decontamination is an efficient and energy-saving technology to eliminate these pollutants from water environment, utilizing the energy of external light, and unique function of photocatalysts. Having a large specific surface area, numerous active sites, and varied band structures, 2D nanosheets have exhibited promising applications as an efficient photocatalyst for degrading organic pollutants, particularly hybridization with other functional components. The novel hybridization of 2D nanomaterials with various functional species is summarized systematically with emphasis on their enhanced photocatalytic activities and outstanding performances in environmental remediation. First, the mechanism of photocatalytic degradation is given for discussing the advantages/shortcomings of regular 2D materials and identifying the importance of constructing hybrid 2D photocatalysts. An overview of several types of intensively investigated 2D nanomaterials (i.e., graphene, g-C3 N4 , MoS2 , WO3 , Bi2 O3 , and BiOX) is then given to indicate their hybridized methodologies, synergistic effect, and improved applications in decontamination of organic dyes and other pollutants. Finally, future research directions are rationally suggested based on the current challenges.
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Affiliation(s)
- Guijian Guan
- Institute of Molecular Plus, Tianjin University, Tianjin, 300072, P. R. China
| | - Enyi Ye
- Institute of Materials Research and Engineering, A*STAR, 2 Fusionopolis Way, Singapore, 138634, Singapore
| | - Mingliang You
- Hangzhou Cancer Institute, Affiliated Hangzhou Cancer Hospital, Zhejiang University School of Medicine, Hangzhou, 310002, P. R. China
| | - Zibiao Li
- Department of Clinical Pharmacy, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, P. R. China
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70
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Luo M, Yang Q, Yang W, Wang J, He F, Liu K, Cao H, Yan H. Defects Engineering Leads to Enhanced Photocatalytic H 2 Evolution on Graphitic Carbon Nitride-Covalent Organic Framework Nanosheet Composite. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2001100. [PMID: 32323466 DOI: 10.1002/smll.202001100] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/23/2020] [Accepted: 03/29/2020] [Indexed: 06/11/2023]
Abstract
Graphitic carbon nitride nanosheet (CNS) represents an attractive candidate for solar fuel production. However, the abundant defects in CNS lead to serious charge recombination and limit the photocatalytic performance. Herein, the synthesis of a CNS-covalent organic framework (CNS-COF) nanosheet composite is presented for the first time. CNS with significantly reduced defects is first obtained by rationally tuning the thermal exfoliation conditions of bulk carbon nitride. Subsequent modification of the CNS with trace COF nanosheet through chemical imine bonding can not only passivate the surface termination of carbon nitride in the boundary region, but also establish strong electronic coupling between these two components. As a consequence, enhanced charge separation and photocatalytic activity are realized on the resulting CNS-COF nanosheet composite. Under optimum conditions, hydrogen is evolved at a rate of 46.4 mmol g-1 h-1 . This corresponds to an apparent quantum efficiency of 31.8% at 425 nm, which is among the best values ever reported for carbon nitride-based materials.
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Affiliation(s)
- Maolan Luo
- College of Chemistry, Sichuan University, Chengdu, Sichuan, 610065, China
| | - Qing Yang
- College of Chemistry, Sichuan University, Chengdu, Sichuan, 610065, China
| | - Wenbin Yang
- State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Junhui Wang
- State Key Laboratory of Molecular Reaction Dynamics and Dynamics Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Fangfang He
- State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Kewei Liu
- College of Chemistry, Sichuan University, Chengdu, Sichuan, 610065, China
| | - Hongmei Cao
- College of Chemistry, Sichuan University, Chengdu, Sichuan, 610065, China
| | - Hongjian Yan
- College of Chemistry, Sichuan University, Chengdu, Sichuan, 610065, China
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71
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Two-Dimensional Materials and Composites as Potential Water Splitting Photocatalysts: A Review. Catalysts 2020. [DOI: 10.3390/catal10040464] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Hydrogen production via water dissociation under exposure to sunlight has emanated as an environmentally friendly, highly productive and expedient process to overcome the energy production and consumption gap, while evading the challenges of fossil fuel depletion and ecological contamination. Various classes of materials are being explored as viable photocatalysts to achieve this purpose, among which, the two-dimensional materials have emerged as prominent candidates, having the intrinsic advantages of visible light sensitivity; structural and chemical tuneability; extensively exposed surface area; and flexibility to form composites and heterostructures. In an abridged manner, the common types of 2D photocatalysts, their position as potential contenders in photocatalytic processes, their derivatives and their modifications are described herein, as it all applies to achieving the coveted chemical and physical properties by fine-tuning the synthesis techniques, precursor ingredients and nano-structural alterations.
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72
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Yao Z, Sun H, Sui H, Liu X. 2D/2D Heterojunction of R-scheme Ti 3C 2 MXene/MoS 2 Nanosheets for Enhanced Photocatalytic Performance. NANOSCALE RESEARCH LETTERS 2020; 15:78. [PMID: 32274602 PMCID: PMC7145887 DOI: 10.1186/s11671-020-03314-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 03/30/2020] [Indexed: 06/01/2023]
Abstract
Combination of two-dimensional (2D) materials and semiconductors is considered to be an effective way for fabricating photocatalysts for solving the environmental pollution and energy crisis. In this work, novel 2D/2D heterojunction of R-scheme Ti3C2 MXene/MoS2 nanosheets is successfully synthesized by hydrothermal reaction. The photocatalytic activity of the Ti3C2 MXene/MoS2 composites is evaluated by photocatalytic degradation and hydrogen evolution reaction. Especially, 0.5 wt% Ti3C2 MXene/MoS2 sample exhibits optimum methyl orange (MO) degradation and H2 evolution rate of 97.4% and H2 evolution rate of 380.2 μmol h-1 g-1, respectively, which is attributed to the enhanced optical absorption ability and increased specific surface area. Additionally, Ti3C2 MXene coupled with MoS2 nanosheets is favorable for improving the photocurrent response and reducing the electrochemical impedance, leading to the enhanced electron transfer of excited semiconductor and inhibition of charge recombination. This work demonstrates that Ti3C2 MXene could be a promising carrier to construct 2D/2D heterojunction in photocatalytic degradation and hydrogen evolution reaction.
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Affiliation(s)
- Ziyu Yao
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
- Advanced Ceramics Institute of Zibo New & High-Tech Industrial Development Zone, Zibo, 255000, People's Republic of China
| | - Huajun Sun
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
- Advanced Ceramics Institute of Zibo New & High-Tech Industrial Development Zone, Zibo, 255000, People's Republic of China
| | - Huiting Sui
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
- Advanced Ceramics Institute of Zibo New & High-Tech Industrial Development Zone, Zibo, 255000, People's Republic of China
| | - Xiaofang Liu
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070, People's Republic of China.
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73
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Ghosh D, Devi P, Kumar P. Modified p-GaN Microwells with Vertically Aligned 2D-MoS 2 for Enhanced Photoelectrochemical Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2020; 12:13797-13804. [PMID: 32150368 DOI: 10.1021/acsami.9b20969] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Photoelectrochemical (PEC) water splitting has been considered as the future technology for storing solar energy in the chemical bonds. However, due to the search of ideal heterostructured materials for photoanode/cathode, the full potential of this technology has not been realized yet. Herein we present, the nanotextured hexagonal microwell of p-GaN [p-GaN(Et)] synthesized via wet chemical etching route as a photocathode (PC) for PEC water splitting. The p-GaN(Et) was further modified by interconnected nanowall network of two-dimensional (2D) transition metal dichalcogenide (MoS2) [2D-MoS2/p-GaN(Et)]. Both PCs were characterized for their morphology, structures, and optical and electronic properties. The overall PEC performance was validated through photocurrent values followed by the amount of hydrogen and oxygen evolution. This combination of 2D-MoS2/p-GaN(Et) outplayed pristine p-GaN(Et) by several orders of magnitude in overall PEC performance. The extraordinary stability under a continuous operating condition with 1 sun illumination (100 mW/cm2) provides the much-needed flavor of an efficient photocathode. The optimized photocathode [2D-MoS2/p-GaN(Et)] shows the highest applied bias photon-to-current conversion efficiency of ∼3.18% with hydrogen evolution rate of 89.56 μmol/h at -0.3 V vs RHE. This wafer-level cost-effective synthesis of 2D-MoS2/GaN heterostructure based PCs opens a new way for large-scale solar-fuel conversion.
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Affiliation(s)
- Dibyendu Ghosh
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700030, India
| | - Pooja Devi
- Central Scientific Instruments Organisation, Sector-30C, Chandigarh 160030, India
| | - Praveen Kumar
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700030, India
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Armano A, Buscarino G, Messina F, Sciortino A, Cannas M, Gelardi FM, Giannazzo F, Schilirò E, Agnello S. Dynamic Modification of Fermi Energy in Single-Layer Graphene by Photoinduced Electron Transfer from Carbon Dots. NANOMATERIALS 2020; 10:nano10030528. [PMID: 32183471 PMCID: PMC7153610 DOI: 10.3390/nano10030528] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/06/2020] [Accepted: 03/11/2020] [Indexed: 12/20/2022]
Abstract
Graphene (Gr)—a single layer of two-dimensional sp2 carbon atoms—and Carbon Dots (CDs)—a novel class of carbon nanoparticles—are two outstanding nanomaterials, renowned for their peculiar properties: Gr for its excellent charge-transport, and CDs for their impressive emission properties. Such features, coupled with a strong sensitivity to the environment, originate the interest in bringing together these two nanomaterials in order to combine their complementary properties. In this work, the investigation of a solid-phase composite of CDs deposited on Gr is reported. The CD emission efficiency is reduced by the contact of Gr. At the same time, the Raman analysis of Gr demonstrates the increase of Fermi energy when it is in contact with CDs under certain conditions. The interaction between CDs and Gr is modeled in terms of an electron-transfer from photoexcited CDs to Gr, wherein an electron is first transferred from the carbon core to the surface states of CDs, and from there to Gr. There, the accumulated electrons determine a dynamical n-doping effect modulated by photoexcitation. The CD–graphene interaction unveiled herein is a step forward in the understanding of the mutual influence between carbon-based nanomaterials, with potential prospects in light conversion applications.
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Affiliation(s)
- Angelo Armano
- Dipartimento di Fisica e Chimica-Emilio Segrè, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy; (A.A.); (G.B.); (F.M.); (A.S.); (M.C.); (F.M.G.)
- Dipartimento di Fisica e Astronomia-Ettore Majorana, Università degli Studi di Catania, Via Santa Sofia 64, 95123 Catania, Italy
| | - Gianpiero Buscarino
- Dipartimento di Fisica e Chimica-Emilio Segrè, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy; (A.A.); (G.B.); (F.M.); (A.S.); (M.C.); (F.M.G.)
- ATeN Center, Università degli Studi di Palermo, Viale delle Scienze, Edificio 18, 90128 Palermo, Italy
- Consiglio Nazionale delle Ricerche-Istituto per la Microelettronica e Microsistemi, Strada VIII 5, 95121 Catania, Italy; (F.G.); (E.S.)
| | - Fabrizio Messina
- Dipartimento di Fisica e Chimica-Emilio Segrè, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy; (A.A.); (G.B.); (F.M.); (A.S.); (M.C.); (F.M.G.)
- ATeN Center, Università degli Studi di Palermo, Viale delle Scienze, Edificio 18, 90128 Palermo, Italy
| | - Alice Sciortino
- Dipartimento di Fisica e Chimica-Emilio Segrè, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy; (A.A.); (G.B.); (F.M.); (A.S.); (M.C.); (F.M.G.)
| | - Marco Cannas
- Dipartimento di Fisica e Chimica-Emilio Segrè, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy; (A.A.); (G.B.); (F.M.); (A.S.); (M.C.); (F.M.G.)
| | - Franco Mario Gelardi
- Dipartimento di Fisica e Chimica-Emilio Segrè, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy; (A.A.); (G.B.); (F.M.); (A.S.); (M.C.); (F.M.G.)
| | - Filippo Giannazzo
- Consiglio Nazionale delle Ricerche-Istituto per la Microelettronica e Microsistemi, Strada VIII 5, 95121 Catania, Italy; (F.G.); (E.S.)
| | - Emanuela Schilirò
- Consiglio Nazionale delle Ricerche-Istituto per la Microelettronica e Microsistemi, Strada VIII 5, 95121 Catania, Italy; (F.G.); (E.S.)
| | - Simonpietro Agnello
- Dipartimento di Fisica e Chimica-Emilio Segrè, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy; (A.A.); (G.B.); (F.M.); (A.S.); (M.C.); (F.M.G.)
- ATeN Center, Università degli Studi di Palermo, Viale delle Scienze, Edificio 18, 90128 Palermo, Italy
- Consiglio Nazionale delle Ricerche-Istituto per la Microelettronica e Microsistemi, Strada VIII 5, 95121 Catania, Italy; (F.G.); (E.S.)
- Correspondence:
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75
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Yao Z, Sun H, Sui H, Liu X. Construction of BPQDs/Ti 3C 2@TiO 2 Composites with Favorable Charge Transfer Channels for Enhanced Photocatalytic Activity under Visible Light Irradiation. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E452. [PMID: 32138304 PMCID: PMC7153474 DOI: 10.3390/nano10030452] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/20/2020] [Accepted: 02/27/2020] [Indexed: 01/15/2023]
Abstract
Design and construction of double heterojunction is favorable to improve the separation and migration efficiency of photogenerated carriers, thus preferably solve the problems of environmental pollution and energy crisis. Herein, TiO2 nanoparticles (NPs) are in-situ grown on highly conductive Ti3C2 nanosheets via low-temperature hydrothermal strategy, and then black phosphorus quantum dots (BPQDs) are introduced on the surface of TiO2 NPs. Under hydrothermal temperature 120 °C, the BPQDs/Ti3C2@TiO2 photocatalyst exhibits remarkable enhanced photocatalytic degradation of methyl orange (MO) and hydrogen evolution reaction (HER) compared with BPQDs/Ti3C2 and Ti3C2@TiO2 composites. Enhanced photocatalytic activity can be attributed to (i) the BPQDs with tunable bandgaps are deposited on the TiO2 NPs to form intimate heterojunction, which facilitates the electrons transfer from the conduction band (CB) of BPQDs to the CB of TiO2; (ii) the electrons quickly migrate from CB of TiO2 NPs to the Ti3C2 nanosheets with excellent electronic conductivity via electron transfer channel, which is beneficial to prolong the lifetime of electrons and hinder the recombination of photogenerated carriers; (iii) the enhanced visible light absorption and enlarged specific surface area of BPQDs/Ti3C2@TiO2 further accelerate the photocatalytic reaction. This work emphasizes the essential role of quantum dots in the construction of double heterojunction and the potential application of Ti3C2 MXene for improving photocatalytic activity.
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Affiliation(s)
- Ziyu Yao
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China; (Z.Y.); (H.S.)
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
- Advanced Ceramics Institute of Zibo New & High-Tech Industrial Development Zone, Zibo 255000, China
| | - Huajun Sun
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China; (Z.Y.); (H.S.)
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
- Advanced Ceramics Institute of Zibo New & High-Tech Industrial Development Zone, Zibo 255000, China
| | - Huiting Sui
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China; (Z.Y.); (H.S.)
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
- Advanced Ceramics Institute of Zibo New & High-Tech Industrial Development Zone, Zibo 255000, China
| | - Xiaofang Liu
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
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Mengting Z, Kurniawan TA, Yanping Y, Avtar R, Othman MHD. 2D Graphene oxide (GO) doped p-n type BiOI/Bi2WO6 as a novel composite for photodegradation of bisphenol A (BPA) in aqueous solutions under UV-vis irradiation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 108:110420. [DOI: 10.1016/j.msec.2019.110420] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 10/08/2019] [Accepted: 11/10/2019] [Indexed: 12/26/2022]
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77
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Construction of ultrathin MoS 2/Bi 5O 7I composites: Effective charge separation and increased photocatalytic activity. J Colloid Interface Sci 2020; 560:475-484. [PMID: 31679776 DOI: 10.1016/j.jcis.2019.10.081] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/20/2019] [Accepted: 10/21/2019] [Indexed: 02/05/2023]
Abstract
Ultrathin MoS2 nanosheet hybridized Bi5O7I (MoS2/Bi5O7I) nanorods were synthesized via a reactable ionic liquid assisted solvothermal process for the first time. The photocatalytic activity of MoS2/Bi5O7I nanorods was determined by photodegrading bisphenol A (BPA), tetracycline hydrochloride (TC) and ciprofloxacin (CIP) under visible light irradiation. Experimental results showed that MoS2/Bi5O7I owned the excellent photocatalytic properties and photostability. The efficient visible light driven photocatalytic performance was due to a larger specific surface area of MoS2, which increased the close interfacial contact between pollutants and photocatalysts. Meanwhile, the introduction of ultrathin MoS2 nanosheet was conducive to the separation and utilization of photoinduced charge carriers, thus further suppressed high recombination rate in pure Bi5O7I nanorods. Moreover, a possible charge transfer path in MoS2/Bi5O7I composite material was also put forward.
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78
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Kong W, Zhang X, Chang B, Guo Y, Li Y, Zhang S, Yang B. TiO
2
Nanorods Co‐decorated with Metal‐Free Carbon Materials for Boosted Photoelectrochemical Water Oxidation. ChemElectroChem 2020. [DOI: 10.1002/celc.202000032] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Weiqian Kong
- Department Henan Provincial Key Laboratory of Nanocomposite and Applications Institute of Nanostructured Functional MaterialsHuanghe Science and Technology College Zhengzhou, Henan 450006 China
| | - Xiaofan Zhang
- School of Materials Science and EngineeringDongguan University of Technology Dongguan 523808 China
| | - Binbin Chang
- Department Henan Provincial Key Laboratory of Nanocomposite and Applications Institute of Nanostructured Functional MaterialsHuanghe Science and Technology College Zhengzhou, Henan 450006 China
| | - Yanzhen Guo
- Department Henan Provincial Key Laboratory of Nanocomposite and Applications Institute of Nanostructured Functional MaterialsHuanghe Science and Technology College Zhengzhou, Henan 450006 China
| | - Yipeng Li
- Department Henan Provincial Key Laboratory of Nanocomposite and Applications Institute of Nanostructured Functional MaterialsHuanghe Science and Technology College Zhengzhou, Henan 450006 China
| | - Shouren Zhang
- Department Henan Provincial Key Laboratory of Nanocomposite and Applications Institute of Nanostructured Functional MaterialsHuanghe Science and Technology College Zhengzhou, Henan 450006 China
| | - Baocheng Yang
- Department Henan Provincial Key Laboratory of Nanocomposite and Applications Institute of Nanostructured Functional MaterialsHuanghe Science and Technology College Zhengzhou, Henan 450006 China
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Liu F, Huang C, Liu CX, Shi R, Chen Y. Black Phosphorus-Based Semiconductor Heterojunctions for Photocatalytic Water Splitting. Chemistry 2020; 26:4449-4460. [PMID: 31710131 DOI: 10.1002/chem.201904594] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Indexed: 12/17/2022]
Abstract
Solar-to-hydrogen (H2 ) conversion has been regarded as a sustainable and renewable technique to address aggravated environmental pollution and global energy crisis. The most critical aspect in this technology is to develop highly efficient and stable photocatalysts, especially metal-free photocatalysts. Recently, black phosphorus (BP), as a rising star 2D nanomaterial, has captured enormous attention in photocatalytic water splitting owing to its widespread optical absorption, adjustable direct band gap, and superior carrier migration characteristics. However, the rapid charge recombination of pristine BP has seriously limited its practical application as photocatalyst. The construction of BP-based semiconductor heterojunctions has been proven to be an effective strategy for enhancing the separation of photogenerated carriers. This Minireview attempts to summarize the recent progress in BP-based semiconductor heterojunctions for photocatalytic water splitting, including type-I and type-II heterojunctions, Z-Scheme systems, and multicomponent heterojunctions. Finally, a brief summary and perspective on the challenges and future directions in this field are also provided.
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Affiliation(s)
- Fulai Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials &, CAS-HKU Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P.R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Chen Huang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials &, CAS-HKU Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P.R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Chu-Xuan Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials &, CAS-HKU Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P.R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Rui Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials &, CAS-HKU Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P.R. China
| | - Yong Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials &, CAS-HKU Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P.R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
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81
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Abstract
The search for renewable and clean energy sources is a key aspect for sustainable development as energy consumption has continuously increased over the years concomitantly with environmental concerns caused by the use of fossil fuels. Semiconductor materials have great potential for acting as photocatalysts for solar fuel production, a potential energy source able to solve both energy and environmental concerns. Among the studied semiconductor materials, those based on niobium pentacation are still shallowly explored, although the number of publications and patents on Nb(V)-based photocatalysts has increased in the last years. A large variety of Nb(V)-based materials exhibit suitable electronic/morphological properties for light-driving reactions. Not only the extensive group of Nb2O5 polymorphs is explored, but also many types of layered niobates, mixed oxides, and Nb(V)-doped semiconductors. Therefore, the aim of this manuscript is to provide a review of the latest developments of niobium based photocatalysts for energy conversion into fuels, more specifically, CO2 reduction to hydrocarbons or H2 evolution from water. Additionally, the main strategies for improving the photocatalytic performance of niobium-based materials are discussed.
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82
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Kim C, Cho KM, Park K, Kim KH, Gereige I, Jung H. Ternary Hybrid Aerogels of g‐C
3
N
4
/α‐Fe
2
O
3
on a 3D Graphene Network: An Efficient and Recyclable Z‐Scheme Photocatalyst. Chempluschem 2020. [DOI: 10.1002/cplu.201900688] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Chansol Kim
- Department of Chemical & Biomolecular Engineering (BK-21 plus) Korea Advanced Institute of Science and Technology (KAIST) 291 Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea
- KAIST Institute for Nanocentury 291 Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea
| | - Kyeong Min Cho
- Department of Chemical & Biomolecular Engineering (BK-21 plus) Korea Advanced Institute of Science and Technology (KAIST) 291 Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea
- KAIST Institute for Nanocentury 291 Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea
| | - Kangho Park
- Department of Chemical & Biomolecular Engineering (BK-21 plus) Korea Advanced Institute of Science and Technology (KAIST) 291 Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea
- KAIST Institute for Nanocentury 291 Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea
| | - Kyoung Hwan Kim
- Department of Chemical & Biomolecular Engineering (BK-21 plus) Korea Advanced Institute of Science and Technology (KAIST) 291 Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea
| | - Issam Gereige
- Saudi Aramco Research and Development Center Dhahran 31311 Saudi Arabia
| | - Hee‐Tae Jung
- Department of Chemical & Biomolecular Engineering (BK-21 plus) Korea Advanced Institute of Science and Technology (KAIST) 291 Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea
- KAIST Institute for Nanocentury 291 Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea
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83
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Ren D, Shen R, Jiang Z, Lu X, Li X. Highly efficient visible-light photocatalytic H2 evolution over 2D–2D CdS/Cu7S4 layered heterojunctions. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(19)63467-4] [Citation(s) in RCA: 140] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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84
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Surface and interface modification strategies of CdS-based photocatalysts. INTERFACE SCIENCE AND TECHNOLOGY 2020. [DOI: 10.1016/b978-0-08-102890-2.00010-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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85
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2D/2D BiOBr/Ti3C2 heterojunction with dual applications in both water detoxification and water splitting. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2019.112099] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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86
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Singh P, Shandilya P, Raizada P, Sudhaik A, Rahmani-Sani A, Hosseini-Bandegharaei A. Review on various strategies for enhancing photocatalytic activity of graphene based nanocomposites for water purification. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2018.12.001] [Citation(s) in RCA: 216] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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87
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Wang J, Cui W, Chen R, He Y, Yuan C, Sheng J, Li J, Zhang Y, Dong F, Sun Y. OH/Na co-functionalized carbon nitride: directional charge transfer and enhanced photocatalytic oxidation ability. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02048a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Graphitic carbon nitride (g-C3N4, CN for short) is a compelling visible-light responsive photocatalyst.
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88
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Zhao SW, Zheng M, Sun HL, Li SJ, Pan QJ, Guo YR. Construction of heterostructured g-C3N4/ZnO/cellulose and its antibacterial activity: experimental and theoretical investigations. Dalton Trans 2020; 49:3723-3734. [DOI: 10.1039/c9dt03757h] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A ternary composite is fabricated via a facile method. The chemically interfacial coupling is revealed, which improves the spatial separation efficiency of photogenerated carriers and leads to superior good antibacterial activity.
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Affiliation(s)
- Si-Wei Zhao
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education)
- College of Material Science and Engineering
- Northeast Forestry University
- Harbin 150040
- China
| | - Ming Zheng
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- China
| | - Hui-Liang Sun
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education)
- College of Material Science and Engineering
- Northeast Forestry University
- Harbin 150040
- China
| | - Shu-Jun Li
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education)
- College of Material Science and Engineering
- Northeast Forestry University
- Harbin 150040
- China
| | - Qing-Jiang Pan
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- China
| | - Yuan-Ru Guo
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education)
- College of Material Science and Engineering
- Northeast Forestry University
- Harbin 150040
- China
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89
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Synthesis and characterization of cadmium-bismuth microspheres for the catalytic and photocatalytic degradation of organic pollutants, with antibacterial, antioxidant and cytotoxicity assay. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 202:111723. [DOI: 10.1016/j.jphotobiol.2019.111723] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 10/30/2019] [Accepted: 11/22/2019] [Indexed: 11/15/2022]
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90
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Ma Y, Dong YX, Wang B, Ren SW, Cao JT, Liu YM. CdS:Mn-sensitized 2D/2D heterostructured g-C3N4-MoS2 with excellent photoelectrochemical performance for ultrasensitive immunosensing platform. Talanta 2020; 207:120288. [DOI: 10.1016/j.talanta.2019.120288] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 08/12/2019] [Accepted: 08/20/2019] [Indexed: 01/15/2023]
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91
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Ultrathin graphitic carbon nitride modified PbBiO2Cl microspheres with accelerating interfacial charge transfer for the photodegradation of organic contaminants. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123804] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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92
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Seeharaj P, Kongmun P, Paiplod P, Prakobmit S, Sriwong C, Kim-Lohsoontorn P, Vittayakorn N. Ultrasonically-assisted surface modified TiO 2/rGO/CeO 2 heterojunction photocatalysts for conversion of CO 2 to methanol and ethanol. ULTRASONICS SONOCHEMISTRY 2019; 58:104657. [PMID: 31450324 DOI: 10.1016/j.ultsonch.2019.104657] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 06/21/2019] [Accepted: 06/22/2019] [Indexed: 06/10/2023]
Abstract
Converting CO2 to usable fuel may contribute to lowering of global warming, thus this study developed effective heterojunction photocatalysts for the photoreduction of CO2 with water into methanol and ethanol fuels. The photocatalysts were prepared from combining surface modified titanium dioxide (TiO2) nanoparticles with reduced graphene oxide (rGO) and cerium oxide (CeO2). The TiO2 surfaces were firstly modified via the sono-assisted exfoliation, with high intensity ultrasonic waves (ultrasonic horn, 20 kHz, 150 W/cm2) in 10 M NaOH for 1 h. Highly reactive nanosheets delaminated from outer surfaces of the primary TiO2 crystals leading to an increase in specific surface active area, light absorption and decrease in electron-hole recombination rate, which enhanced photocatalytic activity. Then, 0.75 wt% rGO and 1 wt% CeO2 were incorporated into the surface modified TiO2 to promote photogenerated charge separation, electron mobility and CO2 absorptivity. The modified TiO2/rGO/CeO2 photocatalysts exhibited superior photocatalytic performance by producing methanol at 641 μmol/gcath and ethanol at 271 μmol/gcath, almost 7 times higher than rates from pure TiO2. The significant improvement in CO2 photoconversion activity was mainly attributed to the high interfacial contact area and strong connection between the reactive delaminated TiO2 nanosheets, rGO and CeO2, which, in turn, facilitated the flow of large number of photogenerated charge carriers to react with the absorbed species, and the multi-step charge transportation due to the heterojunction effect that effectively retarded electron-hole recombination.
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Affiliation(s)
- Panpailin Seeharaj
- Advanced Materials Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, 10520 Ladkrabang, Bangkok, Thailand.
| | - Panyata Kongmun
- Advanced Materials Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, 10520 Ladkrabang, Bangkok, Thailand
| | - Piyalak Paiplod
- Advanced Materials Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, 10520 Ladkrabang, Bangkok, Thailand
| | - Saowanee Prakobmit
- Advanced Materials Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, 10520 Ladkrabang, Bangkok, Thailand
| | - Chaval Sriwong
- Advanced Materials Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, 10520 Ladkrabang, Bangkok, Thailand
| | - Pattaraporn Kim-Lohsoontorn
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, 10330 Pathumwan, Bangkok, Thailand
| | - Naratip Vittayakorn
- Advanced Materials Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, 10520 Ladkrabang, Bangkok, Thailand
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93
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Ye W, Hu J, Hu X, Zhang W, Ma X, Wang H. Rational Construction of Z‐Scheme CuInS
2
/Au/g‐C
3
N
4
Heterostructure: Experimental Results and Theoretical Calculation. ChemCatChem 2019. [DOI: 10.1002/cctc.201901227] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Wenhua Ye
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Department of Material Forming and Control Engineering School of Materials and Chemical EngineeringHubei University of Technology Wuhan 430068 P.R. China
| | - Jisong Hu
- Department of Optical Engineering School of ScienceHubei University of Technology Wuhan 430068 P.R. China
| | - Xiaofeng Hu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Department of Material Forming and Control Engineering School of Materials and Chemical EngineeringHubei University of Technology Wuhan 430068 P.R. China
| | - Wenhua Zhang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Department of Material Forming and Control Engineering School of Materials and Chemical EngineeringHubei University of Technology Wuhan 430068 P.R. China
| | - Xinguo Ma
- Department of Optical Engineering School of ScienceHubei University of Technology Wuhan 430068 P.R. China
| | - Huihu Wang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Department of Material Forming and Control Engineering School of Materials and Chemical EngineeringHubei University of Technology Wuhan 430068 P.R. China
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94
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Liu M, Jiang H, Liu Y, Chen R. Pd Nanoparticles Immobilized in Layered ZIFs as Efficient Catalysts for Heterogeneous Catalysis. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03853] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Manman Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Hong Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Yefei Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Rizhi Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
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95
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Nunes BN, Patrocinio AOT, Bahnemann DW. Influence of the preparation conditions on the morphology and photocatalytic performance Pt-modified hexaniobate composites. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2019; 31:394001. [PMID: 31234159 DOI: 10.1088/1361-648x/ab2c5e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The preparation of lamellar nanostructures through exfoliation of stacked niobates is an interesting approach to the development of photocatalysts for energy conversion and environmental remediation. These materials exhibit a rich surface chemistry and several nanocomposites can be produced through intercalation or impregnation of suitable precursors. In this work, the influence of the physico-chemical preparation conditions on the photocatalytic activity of Pt-hexaniobate nanocomposites was investigated aiming at the establishment of the main factors that control their photoreactivities. Modification of hexaniobate layers were carried out by adsorption and impregnation methods, using [Pt(NH3)4]Cl2 (Pt1) and H2PtCl6 (Pt2), respectively. The addition of platinum precursors (1% wt.) were performed in the presence of the exfoliating agent tert-butylammonium hydroxide, sNb, or after acidic precipitation followed by resuspension in plain water, eNb. All samples were submitted to photoirradiation to reduce the platinum precursors and the effect of a previous thermal treatment was also evaluated. It was observed that H2 evolution from aqueous methanol solutions is more favored on hexaniobate nanosheets (eNb-Pt1 and eNb-Pt2) instead of scrolled layers (sNb-Pt1 and sNb-Pt2), independent on the platinum precursor. Moreover, residual tert-butylammonium can act as hole scavenger and decrease the degradation rates for methanol oxidation in sNb samples. The curled layers observed for sNb samples seem to favor the photodegradation of cationic species, such as methylene blue. Thermal treatment at 500 °C leads to morphological changes with a decrease of the specific surface area due to restacking of the individual layers along with some curling. As a result, the H2 evolution rates strongly decreases in relation to the non-sintered samples, suggesting that the 'soft' photoreduction of platinum precursors is the best method for preparation of these photocatalysts. The correlations between the preparation conditions and the photocatalytic activity for different photoreactions can allow the development of optimized materials for specific applications.
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Affiliation(s)
- Barbara N Nunes
- Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany. Laboratory of Photochemistry and Materials Science, Institute of Chemistry, Federal University of Uberlandia, Uberlandia, Brazil
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96
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Zhang X, Luo X, Zheng X, Wu X, Xu H. Protonation-Assisted Exfoliation of N-Containing 2D Conjugated Polymers. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1903643. [PMID: 31478337 DOI: 10.1002/smll.201903643] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/16/2019] [Indexed: 06/10/2023]
Abstract
Ultrathin 2D conjugated polymer nanosheets are an emerging class of photocatalysts for solar-to-chemical energy conversion. Until now, the majority of ultrathin 2D polymer photocatalysts are produced through exfoliation of layered polymers. Unfortunately, it still remains a great challenge to exfoliate layered polymers into ultrathin nanosheets with high yields. In this work, a liquid-phase protonation-assisted exfoliation is demonstrated to enable remarkably improved exfoliation yields of various 2D N-containing conjugated polymers such as g-C3 N4 , C2 N, and aza-CMP. The exfoliation yields are only 2-15% in pure water whereas they can be substantially improved to 41-56% in 12 m HCl. The exfoliated ultrathin nanosheets possess average thicknesses less than 5 nm and can be easily dispersed in aqueous solutions. More importantly, the exfoliated nanosheets exhibit significantly enhanced photocatalytic activity toward photocatalytic water splitting compared to their bulk counterparts. Further characterizations and computational calculations reveal that protonation of the heterocyclic nitrogen sites in the conjugated polymer frameworks can lead to strong hydrogen bonding between the polymer surfaces and water molecules, resulting in facilitated exfoliation of polymers into the liquid phase. This study unveils an important protocol toward producing ultrathin 2D N-containing conjugated polymer nanosheets for future solar energy conversion.
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Affiliation(s)
- Xinlei Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Xiao Luo
- Hefei National Laboratory of Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Xusheng Zheng
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230029, China
| | - Xiaojun Wu
- Hefei National Laboratory of Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Hangxun Xu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
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97
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Lan G, Quan Y, Wang M, Nash GT, You E, Song Y, Veroneau SS, Jiang X, Lin W. Metal-Organic Layers as Multifunctional Two-Dimensional Nanomaterials for Enhanced Photoredox Catalysis. J Am Chem Soc 2019; 141:15767-15772. [PMID: 31550885 DOI: 10.1021/jacs.9b08956] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Metal-organic layers (MOLs) have recently emerged as a novel class of molecular two-dimensional (2D) materials with significant potential for catalytic applications. Herein we report the design of a new multifunctional MOL, Hf12-Ir-Ni, by laterally linking Hf12 secondary building units (SBUs) with photosensitizing Ir(DBB)[dF(CF3)ppy]2+ [DBB-Ir-F, DBB = 4,4'-di(4-benzoato)-2,2'-bipyridine; dF(CF3)ppy = 2-(2,4-difluorophenyl)-5-(trifluoromethyl)pyridine] bridging ligands and vertically terminating the SBUs with catalytic Ni(MBA)Cl2 [MBA = 2-(4'-methyl-[2,2'-bipyridin]-4-yl)acetate] capping agents. Hf12-Ir-Ni was synthesized in a bottom-up approach and characterized by TEM, AFM, PXRD, TGA, NMR, ICP-MS, UV-vis, and luminescence spectroscopy. The proximity between photosensitizing Ir centers and catalytic Ni centers (∼0.85 nm) in Hf12-Ir-Ni facilitates single electron transfer, leading to a 15-fold increase in photoredox reactivity. Hf12-Ir-Ni was highly effective in catalytic C-S, C-O, and C-C cross-coupling reactions with broad substrate scopes and turnover numbers of ∼4500, ∼1900, and ∼450, respectively.
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Affiliation(s)
- Guangxu Lan
- Department of Chemistry , The University of Chicago , Chicago , Illinois 60637 , United States
| | - Yangjian Quan
- Department of Chemistry , The University of Chicago , Chicago , Illinois 60637 , United States
| | - Maolin Wang
- Department of Chemistry , The University of Chicago , Chicago , Illinois 60637 , United States.,College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Geoffrey T Nash
- Department of Chemistry , The University of Chicago , Chicago , Illinois 60637 , United States
| | - Eric You
- Department of Chemistry , The University of Chicago , Chicago , Illinois 60637 , United States
| | - Yang Song
- Department of Chemistry , The University of Chicago , Chicago , Illinois 60637 , United States
| | - Samuel S Veroneau
- Department of Chemistry , The University of Chicago , Chicago , Illinois 60637 , United States
| | - Xiaomin Jiang
- Department of Chemistry , The University of Chicago , Chicago , Illinois 60637 , United States
| | - Wenbin Lin
- Department of Chemistry , The University of Chicago , Chicago , Illinois 60637 , United States
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98
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Luo J, Zhang S, Sun M, Yang L, Luo S, Crittenden JC. A Critical Review on Energy Conversion and Environmental Remediation of Photocatalysts with Remodeling Crystal Lattice, Surface, and Interface. ACS NANO 2019; 13:9811-9840. [PMID: 31365227 DOI: 10.1021/acsnano.9b03649] [Citation(s) in RCA: 136] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Solar energy is a renewable resource that can supply our energy needs in the long term. A semiconductor photocatalysis that is capable of utilizing solar energy has appealed to considerable interests for recent decades, owing to the ability to aim at environmental problems and produce renewal energy. Much effort has been put into the synthesis of a highly efficient semiconductor photocatalyst to promote its real application potential. Hence, we reviewed the most advanced methods and strategies in terms of (i) broadening the light absorption wavelengths, (ii) design of active reaction sites, and (iii) control of the electron-hole (e--h+) recombination, while these three processes could be influenced by remodeling the crystal lattice, surface, and interface. Additionally, we individually examined their current applications in energy conversion (i.e., hydrogen evolution, CO2 reduction, nitrogen fixation, and oriented synthesis) and environmental remediation (i.e., air purification and wastewater treatment). Overall, in this review, we particularly focused on advanced photocatalytic activity with simultaneous wastewater decontamination and energy conversion and further enriched the mechanism by proposing the electron flow and substance conversion. Finally, this review offers the prospects of semiconductor photocatalysts in the following three vital (distinct) aspects: (i) the large-scale preparation of highly efficient photocatalysts, (ii) the development of sustainable photocatalysis systems, and (iii) the optimization of the photocatalytic process for practical application.
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Affiliation(s)
- Jinming Luo
- Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering , Georgia Institute of Technology , 828 West Peachtree Street , Atlanta , Georgia 30332 , United States
| | - Shuqu Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle , Nanchang Hangkong University , Nanchang 330063 , Jiangxi Province , People's Republic of China
| | - Meng Sun
- Department of Chemical and Environmental Engineering , Yale University , New Haven , Connecticut 06520-8286 , United States
| | - Lixia Yang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle , Nanchang Hangkong University , Nanchang 330063 , Jiangxi Province , People's Republic of China
| | - Shenglian Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle , Nanchang Hangkong University , Nanchang 330063 , Jiangxi Province , People's Republic of China
| | - John C Crittenden
- Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering , Georgia Institute of Technology , 828 West Peachtree Street , Atlanta , Georgia 30332 , United States
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99
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Jo YK, Lee JM, Son S, Hwang SJ. 2D inorganic nanosheet-based hybrid photocatalysts: Design, applications, and perspectives. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2019. [DOI: 10.1016/j.jphotochemrev.2018.03.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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100
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AgBr and GO co-decorated g-C3N4/Ag2WO4 composite for enhanced photocatalytic activity of contaminants degradation. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.111957] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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