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Benedet M, Rizzi GA, Gasparotto A, Zeng L, Pagot G, Olsson E, Di Noto V, Maccato C, Barreca D. Efficient photoactivated hydrogen evolution promoted by Cu xO-gCN-TiO 2-Au ( x = 1,2) nanoarchitectures. RSC Adv 2024; 14:7221-7228. [PMID: 38419682 PMCID: PMC10901216 DOI: 10.1039/d4ra00773e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 02/23/2024] [Indexed: 03/02/2024] Open
Abstract
In this work, we propose an original and potentially scalable synthetic route for the fabrication of CuxO-gCN-TiO2-Au (x = 1,2) nanoarchitectures, based on Cu foam anodization, graphitic carbon nitride liquid-phase deposition, and TiO2/Au sputtering. A thorough chemico-physical characterization by complementary analytical tools revealed the formation of nanoarchitectures featuring an intimate contact between the system components and a high dispersion of gold nanoparticles. Modulation of single component interplay yielded excellent functional performances in photoactivated hydrogen evolution, corresponding to a photocurrent of ≈-5.7 mA cm-2 at 0.0 V vs. the reversible hydrogen electrode (RHE). These features, along with the very good service life, represent a cornerstone for the conversion of natural resources, as water and largely available sunlight, into added-value solar fuels.
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Affiliation(s)
- Mattia Benedet
- Department of Chemical Sciences, Padova University, INSTM 35131 Padova Italy
- CNR-ICMATE, INSTM, Department of Chemical Sciences, Padova University 35131 Padova Italy
| | - Gian Andrea Rizzi
- Department of Chemical Sciences, Padova University, INSTM 35131 Padova Italy
- CNR-ICMATE, INSTM, Department of Chemical Sciences, Padova University 35131 Padova Italy
| | - Alberto Gasparotto
- Department of Chemical Sciences, Padova University, INSTM 35131 Padova Italy
- CNR-ICMATE, INSTM, Department of Chemical Sciences, Padova University 35131 Padova Italy
| | - Lunjie Zeng
- Department of Physics, Chalmers University of Technology 41296 Gothenburg Sweden
| | - Gioele Pagot
- Section of Chemistry for the Technology (ChemTech), Department of Industrial Engineering, Padova University, INSTM 35131 Padova Italy
| | - Eva Olsson
- Department of Physics, Chalmers University of Technology 41296 Gothenburg Sweden
| | - Vito Di Noto
- Section of Chemistry for the Technology (ChemTech), Department of Industrial Engineering, Padova University, INSTM 35131 Padova Italy
| | - Chiara Maccato
- Department of Chemical Sciences, Padova University, INSTM 35131 Padova Italy
- CNR-ICMATE, INSTM, Department of Chemical Sciences, Padova University 35131 Padova Italy
| | - Davide Barreca
- CNR-ICMATE, INSTM, Department of Chemical Sciences, Padova University 35131 Padova Italy
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2
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Liu S, Xia S, Wang J, Ren X, Chen S, Zhong Y, Bai F. Synthesis of the ZnTPyP/WO 3 nanorod-on-nanorod heterojunction direct Z-scheme with spatial charge separation ability for enhanced photocatalytic hydrogen generation. NANOSCALE 2023; 15:2871-2881. [PMID: 36691714 DOI: 10.1039/d2nr05777h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The direct Z-scheme photocatalytic system can effectively improve the separation efficiency of photogenerated carriers through the photosynthesis-based photocarrier transport model. In this study, zinc porphyrin-assembled nanorods (ZnTPyP) and WO3 nanorods' nanorod-on-nanorod heterojunctions (ZnTPyP/WO3) were successfully prepared through a simple modified acid-base neutralization micelle-confined assembly method using WO3 nanorods as the nucleation template and ZnTPyP as building blocks. ZnTPyP achieved a controllable assembly onto WO3 nanorods through N-W coordination. ZnTPyP/WO3 nanorod-on-nanorod heterojunctions exhibited a structure-dependent photocatalytic performance for hydrogen production. The ZnTPyP/WO3 nanorod-on-nanorod heterojunctions exhibited a optimal hydrogen production rate (74.53 mmol g-1 h-1) using Pt as the co-catalyst, which was 2.64 times that of the ZnTPyP self-assembled nanorods. The improvement in the photocatalytic hydrogen production efficiency could be mainly attributed to the direct Z-scheme electron-transfer mechanism from WO3 to ZnTPyP. This is the first report of an approach using porphyrin-assembled nanostructures to construct organic-inorganic Z-scheme photocatalysts. This study offers valuable information for preparing new efficient photocatalysts based on organic supramolecular orderly aggregate materials.
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Affiliation(s)
- Shuanghong Liu
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, P. R. China.
| | - Siyu Xia
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, P. R. China.
| | - Jiefei Wang
- International Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng 475004, P. R. China
| | - Xitong Ren
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, P. R. China.
| | - Sudi Chen
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, P. R. China.
| | - Yong Zhong
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, P. R. China.
| | - Feng Bai
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, P. R. China.
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Xu L, Ma J, Chen D, Gu C, Zhou J, Jiang T. Brush-like gold nanowires-anchored g-C 3N 4 nanosheets with tunable geometry for ultrasensitive and regenerative SERS detection of gaseous molecules. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 283:121732. [PMID: 35985232 DOI: 10.1016/j.saa.2022.121732] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/18/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
Strapping plasmonic substrate with a reliable ability to anchor molecules and achieve reproducible result provides trustworthy opportunities for flourishing surface-enhanced Raman scattering (SERS) technique. Herein, a facile controllable in-situ anisotropic growth strategy was exploited to anchor gold nanowires (Au NWs) onto two-dimensional g-C3N4 nanosheets (g-C3N4/Au NWs), facilitating a sensitive and recyclable SERS sensor for gaseous analytes. Benefiting from the attractive enrichment effect of the brush-like surface formed by numerous small Au NWs as well as their rich nanotips-mediated enhancement capability, the hybrid substrate showed an outstanding performance in SERS-based detection of trace 4-Aminothiophenol (4-ATP) molecules, demonstrating a monitoring limitation down to 10-8 M even in atmosphere. Satisfyingly, under visible light illumination, the efficient green photocatalytic ability derived from the g-C3N4 supporting matrix rendered reusable capability for the substrate, whose SERS signal was kept at a persistent high level throughout 6 cycles. Attributed to the narrow line width of SERS spectrum, the 4-ATP assay under the interference of 2-naphthalenethiol (2-NAT) was acquired in gas phase and the dependable recovery rates from 85.4 to 93.9% were confirmed as well. Thanks to the intriguing features including excellent sensitivity and recyclability, the g-C3N4/Au NWs substrate proposed here will pave the way toward the potential application of SERS technique in multiplexed gaseous detection.
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Affiliation(s)
- Lanxin Xu
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, PR China
| | - Jiali Ma
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, PR China
| | - Dong Chen
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, PR China
| | - Chenjie Gu
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, PR China
| | - Jun Zhou
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, PR China.
| | - Tao Jiang
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, PR China.
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Zhang L, Chen L, Xia Y, Liang Z, Huang R, Liang R, Yan G. Modification of Polymeric Carbon Nitride with Au-CeO 2 Hybrids to Improve Photocatalytic Activity for Hydrogen Evolution. Molecules 2022; 27:7489. [PMID: 36364316 PMCID: PMC9656339 DOI: 10.3390/molecules27217489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 10/28/2022] [Accepted: 11/01/2022] [Indexed: 10/15/2023] Open
Abstract
The construction of a multi-component heterostructure for promoting the exciton splitting and charge separation of conjugated polymer semiconductors has attracted increasing attention in view of improving their photocatalytic activity. Here, we integrated Au nanoparticles (NPs) decorated CeO2 (Au-CeO2) with polymeric carbon nitride (PCN) via a modified thermal polymerization method. The combination of the interfacial interaction between PCN and CeO2 via N-O or C-O bonds, with the interior electronic transmission channel built by the decoration of Au NPs at the interface between CeO2 and PCN, endows CeAu-CN with excellent efficiency in the transfer and separation of photo-induced carriers, leading to the enhancement of photochemical activity. The amount-optimized CeAu-CN nanocomposites are capable of producing ca. 80 μmol· H2 per hour under visible light irradiation, which is higher than that of pristine CN, Ce-CN and physical mixed CeAu and PCN systems. In addition, the photocatalytic activity of CeAu-CN remains unchanged for four runs in 4 h. The present work not only provides a sample and feasible strategy to synthesize highly efficient organic polymer composites containing metal-assisted heterojunction photocatalysts, but also opens up a new avenue for the rational design and synthesis of potentially efficient PCN-based materials for efficient hydrogen evolution.
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Affiliation(s)
- Linzhu Zhang
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
| | - Lu Chen
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
| | - Yuzhou Xia
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
| | - Zhiyu Liang
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
| | - Renkun Huang
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
| | - Ruowen Liang
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
| | - Guiyang Yan
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
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5
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Pu Z, Xiao B, Mao S, Sun Y, Ma D, Wang H, Zhou J, Cheng Y, Shi JW. An electron-hole separation mechanism caused by the pseudo-gap formed at the interfacial Co-N bond between cobalt porphyrin metal organic framework and boron-doped g-C 3N 4 for boosting photocatalytic H 2 production. J Colloid Interface Sci 2022; 628:477-487. [PMID: 35998470 DOI: 10.1016/j.jcis.2022.08.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/08/2022] [Accepted: 08/11/2022] [Indexed: 10/15/2022]
Abstract
Photocatalytic hydrogen evolution from water splitting presents an attractive prospect in dealing with the energy crisis, but the low efficiency of charge separation and migration still seriously hinders its further practical application. Here, an acidified boron-doped g-C3N4 (HBCNN) and cobalt porphyrin metal organic frameworks (CoPMOF) self-assembled two-dimensional and two-dimensional (2D/2D) hybrid photocatalyst is fabricated successfully. The resultant HBCNN/CoPMOF with optimum ratio exhibits a superior H2 evolution rate of 33.17 mmol g-1 h-1, which is 3.04 and 100.50 times higher than the single HBCNN and CoPMOF, respectively. It is found that a coordination connection has formed between CoPMOF and HBCNN through Co-N bond, and the interfacial Co-N bond then forms a pseudo-gap in the up-spin channel of electronic states, establishing an electron-hole separation mechanism. It is this electron-hole separation mechanism that contributes to a Z-scheme transport mode of photogenerated carriers, which greatly promotes the photocatalytic H2 production performance of HBCNN/CoPMOF heterostructure. This work may provide an idea for the design of heterojunction to improve the photocatalytic performance by constructing electron-hole separation through interfacial bond.
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Affiliation(s)
- Zengxin Pu
- State Key Laboratory of Electrical Insulation and Power Equipment, Center of Nanomaterials for Renewable Energy, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Bing Xiao
- State Key Laboratory of Electrical Insulation and Power Equipment, Center of Nanomaterials for Renewable Energy, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Siman Mao
- State Key Laboratory of Electrical Insulation and Power Equipment, Center of Nanomaterials for Renewable Energy, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yingxue Sun
- Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, Beijing Technology and Business University, Beijing 100048, China
| | - Dandan Ma
- State Key Laboratory of Electrical Insulation and Power Equipment, Center of Nanomaterials for Renewable Energy, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Hongkang Wang
- State Key Laboratory of Electrical Insulation and Power Equipment, Center of Nanomaterials for Renewable Energy, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jun Zhou
- State Key Laboratory of Electrical Insulation and Power Equipment, Center of Nanomaterials for Renewable Energy, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yonghong Cheng
- State Key Laboratory of Electrical Insulation and Power Equipment, Center of Nanomaterials for Renewable Energy, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jian-Wen Shi
- State Key Laboratory of Electrical Insulation and Power Equipment, Center of Nanomaterials for Renewable Energy, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
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6
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Liao F, Shi Y, Dang Q, Yang H, Huang H, Kang Z, Shao M. Carbon dots dominated photoelectric surface in titanium dioxide nanotube/nitrogen-doped carbon dot/gold nanocomposites for improved photoelectrochemical water splitting. J Colloid Interface Sci 2022; 606:1274-1283. [PMID: 34492465 DOI: 10.1016/j.jcis.2021.08.131] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 08/20/2021] [Accepted: 08/21/2021] [Indexed: 11/19/2022]
Abstract
The dynamic behavior of electron-hole pairs at the interface of the nanocomposites is important for photoelectrochemical catalysis, but it is difficult to characterize. Here we construct a ternary titanium dioxide/nitrogen-doped carbon dot/gold (TiO2/NCD/Au) complex as the model catalyst to investigate the kinetic indexes at their interfaces. Under irradiation (200 mW cm-2), the photocurrent density of TiO2/NCD/Au is 10.26 mA cm-2, which is higher than those of TiO2/Au (4.34 mA cm-2), TiO2/NCD (7.55 mA cm-2) and TiO2 (3.34 mA cm-2). The evolved oxygen of TiO2/NCD/Au reaches 125.8 μmol after 5000 s test. The energy bands of complexes are very similar to that of the unmodified TiO2 catalyst due to the low content modification of NCDs and Au. In addition, the transient photovoltage (TPV) tests with a series of control samples show differences about the carriers' separation and transfer process, which verify that Au can increase the separation quantity of electron-hole pairs while NCDs play a more important role on the increase of the separation quantity and separation rate simultaneously. This work quantifies the function of each component in a composite catalyst and deepens the understanding of the catalyst interface design.
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Affiliation(s)
- Fan Liao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, PR China
| | - Yandi Shi
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, PR China
| | - Qian Dang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, PR China
| | - Haiwei Yang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, PR China
| | - Hui Huang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, PR China.
| | - Zhenhui Kang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, PR China; Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa 999078, Macau.
| | - Mingwang Shao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, PR China.
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Wang Q, Fang Z, Zhao X, Dong C, Li Y, Guo C, Liu Q, Song F, Zhang W. Biotemplated g-C 3N 4/Au Periodic Hierarchical Structures for the Enhancement of Photocatalytic CO 2 Reduction with Localized Surface Plasmon Resonance. ACS APPLIED MATERIALS & INTERFACES 2021; 13:59855-59866. [PMID: 34878761 DOI: 10.1021/acsami.1c16811] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Graphitic carbon nitride (g-C3N4) is a promising photocatalyst for CO2 reduction to alleviate the greenhouse effect. However, the low light absorption, small specific surface area, and rapid charge recombination limit the photocatalytic efficiency of g-C3N4. Herein, we demonstrate a bioinspired nanoarchitecturing strategy to significantly improve the light harvesting and charge separation of the g-C3N4/Au composite, as proven by the remarkable photocatalytic CO2 reduction. Specifically, a biotemplating approach is employed to transfer the sophisticated hierarchical structures and the related light-harvesting functionality of Troides helena butterfly wings to the g-C3N4/Au composite. The resulting g-C3N4/Au composite shows high photocatalytic efficiency under UV-visible excitation with triethanolamine as the sacrificial agent. The yields of CO and CH4 are 331.57 and 39.71 μmol/g/h, respectively, which are ∼36 times and ∼88 times that of pure g-C3N4 under the same conditions. Detailed experiments and the finite-difference time-domain method suggest that the superb photocatalytic activity should be ascribed to the unique periodic hierarchical structure which assists the light absorption and the localized surface plasmon resonance for promoted charge separation in addition to the more effective CO2 diffusion and larger specific surface area. Our work provides a new path for the design and optimization of photocatalysts based on biological structures that are usually unattainable artificially.
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Affiliation(s)
- Qingtong Wang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
| | - Zixi Fang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
| | - Xinkun Zhao
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
| | - Changlin Dong
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
| | - Yao Li
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
| | - Cuiping Guo
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
| | - Qinglei Liu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
| | - Fang Song
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
| | - Wang Zhang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800# Dongchuan Rd., Shanghai 200240, People's Republic of China
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Abdul Nasir J, Munir A, Ahmad N, Haq TU, Khan Z, Rehman Z. Photocatalytic Z-Scheme Overall Water Splitting: Recent Advances in Theory and Experiments. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2105195. [PMID: 34617345 DOI: 10.1002/adma.202105195] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/23/2021] [Indexed: 06/13/2023]
Abstract
Photocatalytic water splitting is considered one of the most important and appealing approaches for the production of green H2 to address the global energy demand. The utmost possible form of artificial photosynthesis is a two-step photoexcitation known as "Z-scheme", which mimics the natural photosystem. This process solely relies on the effective coupling and suitable band positions of semiconductors (SCs) and redox mediators for the purpose to catalyze the surface chemical reactions and significantly deter the backward reaction. In recent years, the Z-scheme strategies and their key role have been studied progressively through experimental approaches. In addition, theoretical studies based on density functional theory have provided detailed insight into the mechanistic aspects of some breathtakingly complex problems associated with hydrogen evolution reaction and oxygen evolution reaction. In this context, this critical review gives an overview of the fundamentals of Z-scheme photocatalysis, including both theoretical and experimental advancements in the field of photocatalytic water splitting, and suggests future perspectives.
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Affiliation(s)
- Jamal Abdul Nasir
- Kathleen Lonsdale Materials Chemistry, Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Akhtar Munir
- Department of Chemistry, University of Sialkot, 1 Km, main Daska road, Sialkot, Punjab, 51310, Pakistan
- Department of Chemistry & Chemical Engineering, SBA School of Science & Engineering, Lahore University of Management Sciences (LUMS), DHA, Lahore, 54792, Pakistan
| | - Naveed Ahmad
- Institute of Pharmaceutical Science, Faculty of Life Science and Medicine, King's College London, 150 Stamford Street, London, SE1 9NH, UK
- University of Swat. Charbagh, Swat, Khyber Pakhtunkhwa, Pakistan
| | - Tanveer Ul Haq
- Sustainable Energy Engineering, Frank H. Dotterweich College of Engineering, Texas A&M University, Kingsville, TX, 78363-8202, USA
| | - Zaibunisa Khan
- Kathleen Lonsdale Materials Chemistry, Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Ziaur Rehman
- Kathleen Lonsdale Materials Chemistry, Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
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Nguyen VQ, Mady AH, Mahadadalkar MA, Baynosa ML, Kumar DR, Rabie AM, Lee J, Kim WK, Shim JJ. Highly active Z-scheme heterojunction photocatalyst of anatase TiO 2 octahedra covered with C-MoS 2 nanosheets for efficient degradation of organic pollutants under solar light. J Colloid Interface Sci 2021; 606:337-352. [PMID: 34392030 DOI: 10.1016/j.jcis.2021.07.128] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/21/2021] [Accepted: 07/25/2021] [Indexed: 12/19/2022]
Abstract
The construction of a Z-scheme photocatalyst by coupling semiconductors with conductors is an efficient way to achieve high pollutant degradation efficiency. In this study, a hydrothermal approach was used to fabricate a Z-scheme photocatalyst consisting of C-MoS2 sheets wrapped around octahedral anatase TiO2 nanocrystals. The catalyst showed excellent photocatalytic efficiency (99%) for methylene blue degradation with low catalyst loading (0.2 g L-1) under the simulated solar light within 60 min. High photocatalytic degradation efficiencies were also observed for Rhodamine B, methyl orange, and tetracycline under solar irradiation. The C-MoS2 acts as an electron mediator and serves as a carrier transmission bridge for the efficient electron-hole separation. The electron-rich (101)-faceted TiO2 benefits the Z-scheme recombination of electrons from the conduction band of TiO2 and holes at the valence band of MoS2. The semiconductor coupling of (101)-exposed octahedral TiO2 and 2H-MoS2 as well as the introduction of solid-state electron mediators, 1T-MoS2 and carbon, resulted in increased light absorption and accelerated charge transfer at the contact interface, which enhanced the photocatalytic activity of the photocatalyst significantly compared to those of P25, MoS2/TiO2, and C-MoS2. The efficient separation of electron-hole pairs prolongs their lifetime for oxidation and reduction reactions in the degradation process.
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Affiliation(s)
- Van Quang Nguyen
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea; Faculty of Road and Bridge Engineering, The University of Da Nang-University of Science and Technology, 54 Nguyen Luong Bang, Da Nang 550000, Viet Nam
| | - Amr Hussein Mady
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea; Petrochemical Department, Egyptian Petroleum Research Institute, Nasr City, Cairo 11727, Egypt
| | - Manjiri A Mahadadalkar
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Marjorie Lara Baynosa
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea; Department of Chemical Engineering, University of the Philippines-Diliman, Diliman, Quezon City 1101, Philippines
| | - Deivasigamani Ranjith Kumar
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Abdelrahman M Rabie
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea; Petrochemical Department, Egyptian Petroleum Research Institute, Nasr City, Cairo 11727, Egypt
| | - Jintae Lee
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Woo Kyoung Kim
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Jae-Jin Shim
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea.
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10
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Efficient hydrogen generation of vector Z-scheme CaTiO 3/Cu/TiO 2 photocatalyst assisted by cocatalyst Cu nanoparticles. J Colloid Interface Sci 2021; 605:373-384. [PMID: 34332411 DOI: 10.1016/j.jcis.2021.07.106] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/18/2021] [Accepted: 07/19/2021] [Indexed: 12/23/2022]
Abstract
Herein, the CaTiO3/Cu/TiO2 all-solid-state Z-scheme heterojunction is successfully designed via Cu nanoparticles situating at the interface between CaTiO3 and TiO2 with a new synthesis route. Interestingly, TiO2 nanosheets are generated in-situ on the surface of CaTiO3 in the second step hydrothermal reaction. The lifetimes of photoexcited carriers, photoluminescence emission spectra and transient photocurrent response tests have confirmed that the efficient Z-scheme charge transmission path of the CaTiO3/Cu/TiO2 is beneficial to facilitate the separation of photogenerated carriers and reduce their recombination efficiency. As expected, the hydrogen generation rate of CaTiO3/Cu/TiO2 is increased to 23.550 mmol g-1h-1 with the appropriate amount of copper loading, which is about 981 times and 93 times higher than that of pristine CaTiO3 (0.024 mmol g-1h-1) and CaTiO3/TiO2 (0.253 mmol g-1h-1), respectively. Furthermore, the CaTiO3/Cu/TiO2 sample shows good stability in cycle experiments. Particularly, experimental results show that the non-noble metal Cu nanoparticles can be an effective electron mediator. And these merits strongly demonstrate that the CaTiO3/Cu/TiO2 composites have potential application in photocatalytic field. This study can provide fundamental guidance for designing rationally efficient non-noble metal vector Z-scheme system photocatalysts with outstanding photocatalytic H2 generation performance.
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11
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Zhao G, Xu X. Cocatalysts from types, preparation to applications in the field of photocatalysis. NANOSCALE 2021; 13:10649-10667. [PMID: 34105577 DOI: 10.1039/d1nr02464g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
With the rapid development of society, the burden of energy and the environment is becoming more and more serious. Photocatalytic hydrogen production, the photosynthesis of organic fuel, and the photodegradation of pollutants are three effective ways to reduce these burdens using semiconductor photocatalysts. To improve the reaction efficiency of photocatalysts, a small amount of cocatalyst is often added when photocatalysts participate in the synthesis or decomposition reaction. The addition of this small amount of cocatalyst is like a finishing touch, significantly increasing the activity of the photocatalysts. However, in our common study of photocatalysis, we often pay attention to the study of photocatalysts but ignore the study of cocatalysts. Herein, we summarize the recent application research on cocatalysts in the field of photocatalysis, starting from the types, preparation methods, and reaction mechanisms among others, to remind researchers of the matters needing attention when using cocatalysts.
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Affiliation(s)
- Gang Zhao
- Laboratory of Functional Micro-nano Material and Device, School of Physics and Technology, University of Jinan, Jinan, Shandong, P. R. China.
| | - Xijin Xu
- Laboratory of Functional Micro-nano Material and Device, School of Physics and Technology, University of Jinan, Jinan, Shandong, P. R. China.
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12
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Raizada P, Kumar A, Hasija V, Singh P, Thakur VK, Khan AAP. An overview of converting reductive photocatalyst into all solid-state and direct Z-scheme system for water splitting and CO2 reduction. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2020.09.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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13
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Zhang W, Mohamed AR, Ong W. Z‐Schema‐Photokatalysesysteme für die Kohlendioxidreduktion: Wo stehen wir heute? Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914925] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Wenhao Zhang
- School of Energy and Chemical Engineering Xiamen University Malaysia Selangor Darul Ehsan 43900 Malaysia
| | - Abdul Rahman Mohamed
- Low Carbon Economy (LCE) Research Group School of Chemical Engineering Universiti Sains Malaysia Nibong Tebal 14300 Pulau Pinang Malaysia
| | - Wee‐Jun Ong
- School of Energy and Chemical Engineering Xiamen University Malaysia Selangor Darul Ehsan 43900 Malaysia
- College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
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14
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Zhang W, Mohamed AR, Ong W. Z‐Scheme Photocatalytic Systems for Carbon Dioxide Reduction: Where Are We Now? Angew Chem Int Ed Engl 2020; 59:22894-22915. [DOI: 10.1002/anie.201914925] [Citation(s) in RCA: 254] [Impact Index Per Article: 63.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Wenhao Zhang
- School of Energy and Chemical Engineering Xiamen University Malaysia Selangor Darul Ehsan 43900 Malaysia
| | - Abdul Rahman Mohamed
- Low Carbon Economy (LCE) Research Group School of Chemical Engineering Universiti Sains Malaysia Nibong Tebal 14300 Pulau Pinang Malaysia
| | - Wee‐Jun Ong
- School of Energy and Chemical Engineering Xiamen University Malaysia Selangor Darul Ehsan 43900 Malaysia
- College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
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15
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Huang Z, Zhao S, Yu Y. Experimental method to explore the adaptation degree of type-II and all-solid-state Z-scheme heterojunction structures in the same degradation system. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(19)63495-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Construction of SiO2-TiO2/g-C3N4 composite photocatalyst for hydrogen production and pollutant degradation: Insight into the effect of SiO2. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.03.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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17
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Two-dimensional/one-dimensional molybdenum sulfide (MoS2) nanoflake/graphitic carbon nitride (g-C3N4) hollow nanotube photocatalyst for enhanced photocatalytic hydrogen production activity. J Colloid Interface Sci 2020; 567:300-307. [DOI: 10.1016/j.jcis.2020.02.029] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/03/2020] [Accepted: 02/09/2020] [Indexed: 12/18/2022]
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18
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Perović K, dela Rosa FM, Kovačić M, Kušić H, Štangar UL, Fresno F, Dionysiou DD, Loncaric Bozic A. Recent Achievements in Development of TiO 2-Based Composite Photocatalytic Materials for Solar Driven Water Purification and Water Splitting. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E1338. [PMID: 32183457 PMCID: PMC7142427 DOI: 10.3390/ma13061338] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/06/2020] [Accepted: 03/11/2020] [Indexed: 01/20/2023]
Abstract
Clean water and the increased use of renewable energy are considered to be two of the main goals in the effort to achieve a sustainable living environment. The fulfillment of these goals may include the use of solar-driven photocatalytic processes that are found to be quite effective in water purification, as well as hydrogen generation. H2 production by water splitting and photocatalytic degradation of organic pollutants in water both rely on the formation of electron/hole (e-/h+) pairs at a semiconducting material upon its excitation by light with sufficient photon energy. Most of the photocatalytic studies involve the use of TiO2 and well-suited model compounds, either as sacrificial agents or pollutants. However, the wider application of this technology requires the harvesting of a broader spectrum of solar irradiation and the suppression of the recombination of photogenerated charge carriers. These limitations can be overcome by the use of different strategies, among which the focus is put on the creation of heterojunctions with another narrow bandgap semiconductor, which can provide high response in the visible light region. In this review paper, we report the most recent advances in the application of TiO2 based heterojunction (semiconductor-semiconductor) composites for photocatalytic water treatment and water splitting. This review article is subdivided into two major parts, namely Photocatalytic water treatment and Photocatalytic water splitting, to give a thorough examination of all achieved progress. The first part provides an overview on photocatalytic degradation mechanism principles, followed by the most recent applications for photocatalytic degradation and mineralization of contaminants of emerging concern (CEC), such as pharmaceuticals and pesticides with a critical insight into removal mechanism, while the second part focuses on fabrication of TiO2-based heterojunctions with carbon-based materials, transition metal oxides, transition metal chalcogenides, and multiple composites that were made of three or more semiconductor materials for photocatalytic water splitting.
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Affiliation(s)
- Klara Perović
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, HR–10000 Zagreb, Croatia; (K.P.); (F.M.d.R.); (M.K.); (A.L.B.)
| | - Francis M. dela Rosa
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, HR–10000 Zagreb, Croatia; (K.P.); (F.M.d.R.); (M.K.); (A.L.B.)
| | - Marin Kovačić
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, HR–10000 Zagreb, Croatia; (K.P.); (F.M.d.R.); (M.K.); (A.L.B.)
| | - Hrvoje Kušić
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, HR–10000 Zagreb, Croatia; (K.P.); (F.M.d.R.); (M.K.); (A.L.B.)
| | - Urška Lavrenčič Štangar
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, 1000 Ljubljana, Slovenia;
| | - Fernando Fresno
- Photoactivated Processes Unit, IMDEA Energy, Móstoles, 28935 Madrid, Spain;
| | - Dionysios D. Dionysiou
- Environmental Engineering and Science Program, University of Cincinnati, Cincinnati, OH 45221–0012, USA;
| | - Ana Loncaric Bozic
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, HR–10000 Zagreb, Croatia; (K.P.); (F.M.d.R.); (M.K.); (A.L.B.)
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19
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Hou L, Niu Y, Yang F, Ge F, Yuan C. Facile Solvothermal Synthesis of Hollow BiOBr Submicrospheres with Enhanced Visible-Light-Responsive Photocatalytic Performance. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2020; 2020:3058621. [PMID: 32211209 PMCID: PMC7085378 DOI: 10.1155/2020/3058621] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 01/27/2020] [Accepted: 02/04/2020] [Indexed: 05/27/2023]
Abstract
In this work, hierarchical hollow BiOBr submicrospheres (HBSMs) were successfully prepared via a facile yet efficient solvothermal strategy. Remarkable effects of solvents upon the crystallinities, morphologies, and microstructures of the BiOBr products were systematically investigated, which revealed that the glycerol/isopropanol volumetric ratio played a significant role in the formation of hollow architecture. Accordingly, the underlying formation mechanism of the hollow submicrospheres was tentatively put forward here. Furthermore, the photocatalytic activities of the resulting HBSMs were evaluated in detail with photocatalytic degradation of the organic methyl orange under visible light irradiation. Encouragingly, the as-obtained HBSMs with striking recyclability demonstrated excellent visible-light-responsive photocatalytic performance, which benefits from their large surface area, effective visible light absorption, and unique hollow feature, highlighting their promising commercial application in waste water treatment.
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Affiliation(s)
- Linrui Hou
- School of Material Science and Engineering, University of Jinan, Jinan 250022, China
| | - Yawei Niu
- School of Material Science and Engineering, University of Jinan, Jinan 250022, China
| | - Fan Yang
- School of Material Science and Engineering, University of Jinan, Jinan 250022, China
| | - Fengyue Ge
- School of Material Science and Engineering, University of Jinan, Jinan 250022, China
| | - Changzhou Yuan
- School of Material Science and Engineering, University of Jinan, Jinan 250022, China
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20
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SPR effect of Au nanoparticles on the visible photocatalytic RhB degradation and NO oxidation over TiO2 hollow nanoboxes. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2019.08.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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21
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Bi J, Zhao S, Wu J, Xu Y, Wang Z, Han Y, Zhang X. Dual cocatalysts decorated three dimensionally ordered mesoporous g‐C
3
N
4
with homogeneous wall thickness for enhanced photocatalytic performance. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5552] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Jingce Bi
- Department of Chemistry, College of ScienceNortheastern University Shenyang 110819 China
| | - Shan Zhao
- Department of Chemistry, College of ScienceNortheastern University Shenyang 110819 China
| | - Junbiao Wu
- Department of Chemistry, College of ScienceNortheastern University Shenyang 110819 China
| | - Yan Xu
- Department of Chemistry, College of ScienceNortheastern University Shenyang 110819 China
| | - Zhuopeng Wang
- Department of Chemistry, College of ScienceNortheastern University Shenyang 110819 China
| | - Yide Han
- Department of Chemistry, College of ScienceNortheastern University Shenyang 110819 China
| | - Xia Zhang
- Department of Chemistry, College of ScienceNortheastern University Shenyang 110819 China
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22
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Hao X, Guo Q, Li M, Jin Z, Wang Y. TiO2 as an interfacial-charge-transfer-bridge to construct eosin Y-mediated direct Z-scheme electron transfer over a Co9S8 quantum dot/TiO2 photocatalyst. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00893a] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A novel eosin Y-mediated Z-scheme Co9S8 QDs/TiO2 photocatalytic system was constructed and a high AQE of 37.4% is obtained at 470 nm for 20%Co9S8/TiO2 heterojunction.
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Affiliation(s)
- Xuqiang Hao
- School of Chemistry and Chemical Engineering
- Ningxia Key Laboratory of Solar Chemical Conversion Technology
- Key Laboratory for Chemical Engineering and Technology
- State Ethnic Affairs Commission
- North Minzu University
| | - Qingjie Guo
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering
- Ningxia University
- Yinchuan
- PR China
| | - Mei Li
- School of Chemistry and Chemical Engineering
- Ningxia Key Laboratory of Solar Chemical Conversion Technology
- Key Laboratory for Chemical Engineering and Technology
- State Ethnic Affairs Commission
- North Minzu University
| | - Zhiliang Jin
- School of Chemistry and Chemical Engineering
- Ningxia Key Laboratory of Solar Chemical Conversion Technology
- Key Laboratory for Chemical Engineering and Technology
- State Ethnic Affairs Commission
- North Minzu University
| | - Ying Wang
- School of Chemistry and Chemical Engineering
- Eco-materials and Renewable Energy Research Center (ERERC)
- National Laboratory of Solid State Microstructures
- Kunshan Innovation Institute of Nanjing University
- Nanjing University
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23
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Ghosh U, Pal A. Graphitic carbon nitride based Z scheme photocatalysts: Design considerations, synthesis, characterization and applications. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.07.014] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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24
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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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25
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In situ self-assembly synthesis of sandwich-like TiO2/reduced graphene oxide/LaFeO3 Z-scheme ternary heterostructure towards enhanced photocatalytic hydrogen production. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.110497] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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26
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Gebreslassie G, Bharali P, Chandra U, Sergawie A, Boruah PK, Das MR, Alemayehu E. Novel g-C3N4/graphene/NiFe2O4 nanocomposites as magnetically separable visible light driven photocatalysts. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.111960] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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Ding S, Han M, Dai Y, Yang S, Mao D, He H, Sun C. Synthesis of Ag/AgBr/Bi
4
O
5
Br
2
Plasmonic Heterojunction Photocatalysts: Elevated Visible‐light Photocatalytic Performance and Z‐scheme Mechanism. ChemCatChem 2019. [DOI: 10.1002/cctc.201900529] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Shanshan Ding
- State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing University Nanjing 210046 P.R. China
| | - Mengshu Han
- State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing University Nanjing 210046 P.R. China
- Key Laboratory of Information and Computing Science Guizhou ProvinceGuizhou Normal University Guiyang 550001 P.R. China
| | - Yuxuan Dai
- State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing University Nanjing 210046 P.R. China
| | - Shaogui Yang
- School of the EnvironmentNanjing Normal University Nanjing 210046 P.R. China
| | - Danjun Mao
- State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing University Nanjing 210046 P.R. China
| | - Huan He
- School of the EnvironmentNanjing Normal University Nanjing 210046 P.R. China
| | - Cheng Sun
- State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing University Nanjing 210046 P.R. China
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28
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Wang D, Saleh NB, Sun W, Park CM, Shen C, Aich N, Peijnenburg WJGM, Zhang W, Jin Y, Su C. Next-Generation Multifunctional Carbon-Metal Nanohybrids for Energy and Environmental Applications. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:7265-7287. [PMID: 31199142 PMCID: PMC7388031 DOI: 10.1021/acs.est.9b01453] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Nanotechnology has unprecedentedly revolutionized human societies over the past decades and will continue to advance our broad societal goals in the coming decades. The research, development, and particularly the application of engineered nanomaterials have shifted the focus from "less efficient" single-component nanomaterials toward "superior-performance", next-generation multifunctional nanohybrids. Carbon nanomaterials (e.g., carbon nanotubes, graphene family nanomaterials, carbon dots, and graphitic carbon nitride) and metal/metal oxide nanoparticles (e.g., Ag, Au, CdS, Cu2O, MoS2, TiO2, and ZnO) combinations are the most commonly pursued nanohybrids (carbon-metal nanohybrids; CMNHs), which exhibit appealing properties and promising multifunctionalities for addressing multiple complex challenges faced by humanity at the critical energy-water-environment (EWE) nexus. In this frontier review, we first highlight the altered and newly emerging properties (e.g., electronic and optical attributes, particle size, shape, morphology, crystallinity, dimensionality, carbon/metal ratio, and hybridization mode) of CMNHs that are distinct from those of their parent component materials. We then illustrate how these important newly emerging properties and functions of CMNHs direct their performances at the EWE nexus including energy harvesting (e.g., H2O splitting and CO2 conversion), water treatment (e.g., contaminant removal and membrane technology), and environmental sensing and in situ nanoremediation. This review concludes with identifications of critical knowledge gaps and future research directions for maximizing the benefits of next-generation multifunctional CMNHs at the EWE nexus and beyond.
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Affiliation(s)
- Dengjun Wang
- National Research Council Resident Research Associate at the United States Environmental Protection Agency , Ada , Oklahoma 74820 , United States
| | - Navid B Saleh
- Department of Civil, Architectural and Environmental Engineering , University of Texas at Austin , Austin , Texas 78712 , United States
| | - Wenjie Sun
- Department of Civil and Environmental Engineering , Southern Methodist University , Dallas , Texas 75275 , United States
| | - Chang Min Park
- Department of Environmental Engineering , Kyungpook National University , Buk-gu , Daegu 41566 , South Korea
| | - Chongyang Shen
- Department of Soil and Water Sciences , China Agricultural University , Beijing 100193 , China
| | - Nirupam Aich
- Department of Civil, Structural and Environmental Engineering , University at Buffalo, The State University of New York , Buffalo , New York 14260 , United States
| | - Willie J G M Peijnenburg
- Institute of Environmental Sciences (CML) , Leiden University , P.O. Box 9518, 2300 RA Leiden , The Netherlands
- Center for Safety of Substances and Products , National Institute for Public Health and the Environment , P.O. Box 1, 3720 BA Bilthoven , The Netherlands
| | - Wei Zhang
- Department of Plant, Soil and Microbial Sciences, and Environmental Science and Policy Program , Michigan State University , East Lansing , Michigan 48824 , United States
| | - Yan Jin
- Department of Plant and Soil Sciences , University of Delaware , Newark , Delaware 19716 , United States
| | - Chunming Su
- Groundwater, Watershed, and Ecosystem Restoration Division, National Risk Management Research Laboratory, Office of Research and Development , United States Environmental Protection Agency , Ada , Oklahoma 74820 , United States
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29
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Xia X, Song M, Wang H, Zhang X, Sui N, Zhang Q, Colvin VL, Yu WW. Latest progress in constructing solid-state Z scheme photocatalysts for water splitting. NANOSCALE 2019; 11:11071-11082. [PMID: 31149691 DOI: 10.1039/c9nr03218e] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Artificial Z scheme photocatalysis has been considered as a promising strategy for producing the clean energy source of hydrogen gas. The core of the Z scheme is a two-step excitation process in a tandem structured photosystem aiming to satisfy both the criteria of wide range solar spectrum absorption and strong thermodynamic driving force for photolysis reactions. Therefore, efficient connection and matching between the two photosystems is the key to improve the photocatalytic activity. Recently, new progress has been achieved concerning the principles and applications of state-of-the-art solid-state Z schematic systems to enhance the photocatalytic efficiency and repress competitive reactions. This review summarizes the latest approaches to all-solid-state Z schemes for photocatalytic water splitting, including new tandem structures, new morphologies, and new connection modes to improve light absorption as well as carrier transportation. The challenges for developing novel high performance Z scheme photocatalysts are also discussed.
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Affiliation(s)
- Xinyuan Xia
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| | - Mengjiao Song
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| | - Hua Wang
- College of Material Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. and Department of Chemistry and Physics, Louisiana State University, Shreveport, LA 71115, USA
| | - Xiangtong Zhang
- Department of Chemistry and Physics, Louisiana State University, Shreveport, LA 71115, USA
| | - Ning Sui
- College of Material Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Qingbo Zhang
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
| | - Vicki L Colvin
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
| | - William W Yu
- College of Material Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. and Department of Chemistry and Physics, Louisiana State University, Shreveport, LA 71115, USA
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30
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Gebreslassie G, Bharali P, Chandra U, Sergawie A, Baruah PK, Das MR, Alemayehu E. Hydrothermal Synthesis of g‐C
3
N
4
/NiFe
2
O
4
Nanocomposite and Its Enhanced Photocatalytic Activity. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5002] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Gebrehiwot Gebreslassie
- Department of Chemical SciencesTezpur University Napaam 784028 Assam India
- Faculty of Materials Science and Engineering, Jimma Institute of TechnologyJimma University Jimma 378 Ethiopia
- Department of Industrial ChemistryAddis Ababa Science and Technology University Addis Ababa 16417 Ethiopia
| | - Pankaj Bharali
- Department of Chemical SciencesTezpur University Napaam 784028 Assam India
| | - Umesh Chandra
- Faculty of Materials Science and Engineering, Jimma Institute of TechnologyJimma University Jimma 378 Ethiopia
| | - Assefa Sergawie
- Department of Industrial ChemistryAddis Ababa Science and Technology University Addis Ababa 16417 Ethiopia
| | - Purna K. Baruah
- Advanced Materials Group, Materials Sciences and Technology Division, CSIR‐North East Institute of Science and Technology Jorhat 785006 Assam India
- Academy of Scientific and Innovative Research, CSIR‐NEIST Campus India
| | - Manash R. Das
- Advanced Materials Group, Materials Sciences and Technology Division, CSIR‐North East Institute of Science and Technology Jorhat 785006 Assam India
- Academy of Scientific and Innovative Research, CSIR‐NEIST Campus India
| | - Esayas Alemayehu
- Faculty of Civil and Environmental Engineering, Jimma Institute of TechnologyJimma University Jimma 378 Ethiopia
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31
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Liu C, Wang J, Yang S, Li X, Lin X. Ag 3PO 4 nanocrystals and g-C 3N 4 quantum dots decorated Ag 2WO 4 nanorods: ternary nanoheterostructures for photocatalytic degradation of organic contaminants in water. RSC Adv 2019; 9:8065-8072. [PMID: 35521195 PMCID: PMC9061237 DOI: 10.1039/c8ra09815h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 02/27/2019] [Indexed: 11/21/2022] Open
Abstract
Visible-light-driven Ag3PO4/graphite-like carbon nitride/Ag2WO4 photocatalysts with different weight fractions of Ag3PO4 were synthesized. Ag2WO4 nanorods with a scale of 500 nm to 3 μm were prepared by using a hydrothermal reaction. Via a facile deposition-precipitation technique, graphite-like carbon nitride (g-C3N4) quantum dots and Ag3PO4 nanocrystals were then deposited onto the surface of Ag2WO4 nanorods sequentially. Under visible-light irradiation (λ > 420 nm), the Ag3PO4/g-C3N4/Ag2WO4 nanorods degraded Rh B efficiently and displayed much higher photocatalytic activity than that of pure Ag2WO4 and the g-C3N4/Ag2WO4 composite, and the Ag3PO4/g-C3N4/Ag2WO4 hybrid photocatalyst with 30 wt% of Ag3PO4 exhibited the highest photocatalytic activity. The quenching effects of different scavengers demonstrated that reactive h+ and ·O2- played the major roles in Rh B degradation. It was elucidated that the excellent photocatalytic activity of Ag3PO4/g-C3N4/Ag2WO4 for the degradation of Rh B under visible light (λ > 420 nm) can be ascribed to the efficient separation of photogenerated electrons and holes through the Ag3PO4/g-C3N4/Ag2WO4 heterostructure.
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Affiliation(s)
- Chang Liu
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Jilin Normal University, Ministry of Education Changchun 130103 China
| | - Jingbo Wang
- College of Material Science and Engineering, Beihua University Jilin 132013 China +86 434 329 2154 +86 1569434 9717
| | - Shuang Yang
- College of Material Science and Engineering, Beihua University Jilin 132013 China +86 434 329 2154 +86 1569434 9717
| | - Xiuying Li
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Jilin Normal University, Ministry of Education Changchun 130103 China
| | - Xue Lin
- College of Material Science and Engineering, Beihua University Jilin 132013 China +86 434 329 2154 +86 1569434 9717
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32
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Shan X, Ge G, Zhao Z. Fabrication of Tubular g‐C
3
N
4
with N‐Defects and Extended π‐Conjugated System for Promoted Photocatalytic Hydrogen Production. ChemCatChem 2019. [DOI: 10.1002/cctc.201801803] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xin Shan
- State Key Laboratory of Fine Chemicals Department of Catalysis Chemistry and Engineering School of Chemical EngineeringDalian University of Technology Dalian 116024 P.R. China
| | - Guifang Ge
- State Key Laboratory of Fine Chemicals Department of Catalysis Chemistry and Engineering School of Chemical EngineeringDalian University of Technology Dalian 116024 P.R. China
| | - Zhongkui Zhao
- State Key Laboratory of Fine Chemicals Department of Catalysis Chemistry and Engineering School of Chemical EngineeringDalian University of Technology Dalian 116024 P.R. China
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33
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Di T, Xu Q, Ho W, Tang H, Xiang Q, Yu J. Review on Metal Sulphide‐based Z‐scheme Photocatalysts. ChemCatChem 2019. [DOI: 10.1002/cctc.201802024] [Citation(s) in RCA: 314] [Impact Index Per Article: 62.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Tingmin Di
- State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology Wuhan 430070 P. R. China
| | - Quanlong Xu
- State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology Wuhan 430070 P. R. China
| | - WingKei Ho
- Department of Science and Environmental Studies and State Key Laboratory in Marine PollutionThe Education University of Hong Kong Tai Po, N. T. Hong Kong P. R. China
| | - Hua Tang
- School of Materials Science and EngineeringJiangsu University Zhenjiang 212013 P. R. China
| | - Quanjun Xiang
- State Key Laboratory of Electronic Thin Film and Integrated DevicesUniversity of Electronic Science and Technology of China Chengdu 610054 P. R. China
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology Wuhan 430070 P. R. China
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34
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Dou H, Qin Y, Pan F, Long D, Rao X, Xu GQ, Zhang Y. Core–shell g-C3N4/Pt/TiO2 nanowires for simultaneous photocatalytic H2 evolution and RhB degradation under visible light irradiation. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01086f] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Core–shell structural diagram (a) and proposed photocatalytic mechanism (b) for the CN/Pt/TiO2 composite.
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Affiliation(s)
- Hailong Dou
- School of Materials and Energy
- Southwest University
- Chongqing 400715
- China
| | - Yumei Qin
- College of Chemistry and Molecular Engineering
- Peking University
- China
| | - Feng Pan
- College of Chemistry and Molecular Engineering
- Peking University
- China
| | - Dan Long
- School of Materials and Energy
- Southwest University
- Chongqing 400715
- China
| | - Xi Rao
- School of Materials and Energy
- Southwest University
- Chongqing 400715
- China
| | - Guo Qin Xu
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
| | - Yongping Zhang
- School of Materials and Energy
- Southwest University
- Chongqing 400715
- China
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35
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Wei K, Wang B, Hu J, Chen F, Hao Q, He G, Wang Y, Li W, Liu J, He Q. Photocatalytic properties of a new Z-scheme system BaTiO3/In2S3 with a core–shell structure. RSC Adv 2019; 9:11377-11384. [PMID: 35520269 PMCID: PMC9063398 DOI: 10.1039/c8ra10592h] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 04/02/2019] [Indexed: 01/19/2023] Open
Abstract
It's highly desired to design an effective Z-scheme photocatalyst with excellent charge transfer and separation, a more negative conduction band edge (ECB) than O2/·O2− (−0.33 eV) and a more positive valence band edge (EVB) than ·OH/OH− (+2.27 eV).
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Affiliation(s)
| | | | | | | | | | | | | | - Wei Li
- South China Normal University
- China
| | | | - Qinyu He
- South China Normal University
- China
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36
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Zhang X, Li L, Zhou Q, Cao Y, Ma F, Li Y. Three-dimensionally ordered hollow sphere array Pt/In2O3–TiO2 with improved photocatalytic efficiency. NEW J CHEM 2019. [DOI: 10.1039/c9nj01488h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using polystyrene microspheres as the template, the three-dimensionally ordered hollow sphere array Pt/In2O3–TiO2 was established, which exhibited superior photocatalytic degradation efficiency and an enhanced activity in hydrogen evolution.
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Affiliation(s)
- Xinyue Zhang
- College of Materials Science and Engineering, Qiqihar University
- Qiqihar
- China
- College of Chemistry and Chemical Engineering, Qiqihar University
- Qiqihar
| | - Li Li
- College of Materials Science and Engineering, Qiqihar University
- Qiqihar
- China
- College of Chemistry and Chemical Engineering, Qiqihar University
- Qiqihar
| | - Qianlong Zhou
- College of Chemistry and Chemical Engineering, Qiqihar University
- Qiqihar
- China
| | - Yanzhen Cao
- College of Chemistry and Chemical Engineering, Qiqihar University
- Qiqihar
- China
| | - Fengyan Ma
- College of Chemistry and Chemical Engineering, Qiqihar University
- Qiqihar
- China
| | - Yi Li
- College of Chemistry and Chemical Engineering, Qiqihar University
- Qiqihar
- China
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37
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Yang C, Qin J, Rajendran S, Zhang X, Liu R. WS 2 and C-TiO 2 Nanorods Acting as Effective Charge Separators on g-C 3 N 4 to Boost Visible-Light Activated Hydrogen Production from Seawater. CHEMSUSCHEM 2018; 11:4077-4085. [PMID: 30175906 DOI: 10.1002/cssc.201801819] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 09/01/2018] [Indexed: 06/08/2023]
Abstract
Semiconductor photocatalysis is regarded as an ideal method for use in solving the energy shortage and environmental issues by converting solar energy to chemical energy. Herein, we have designed a facile synthetic methodology to obtain a ternary co-modified g-C3 N4 composite via WS2 and carbon-doped TiO2 (C-TiO2 ) nanorods with highly efficient photocatalytic activity for hydrogen production from deionized (DI) water and a natural seawater system under visible-light illumination. This composite exhibits enhanced photocatalytic activity compared to the pristine g-C3 N4 , WS2 , C-TiO2 nanorods, and the reference-modified g-C3 N4 composite with individual WS2 or C-TiO2 nanorods. Co-modified g-C3 N4 composite shows a great photostability in both DI water and seawater. Under λ=420 nm monochromatic light illumination, the apparent quantum efficiency of the co-modified g-C3 N4 composite in seawater solution is 13.08 %, which is higher than pure g-C3 N4 (5.06 %). WS2 , TiO2 , and g-C3 N4 constitute a ternary heterojunction boosting the fast separation of photoinduced electron-hole pairs, which plays a crucial role in enhancing photocatalytic activity. Therefore, the WS2 and C-TiO2 nanorod co-modified g-C3 N4 composite with high photocatalytic performance provides a promising candidate for rationally utilizing the seawater resource to produce clean chemical energy.
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Affiliation(s)
- Chengwu Yang
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Jiaqian Qin
- Research Unit of Advanced Materials for Energy Storage, Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Saravanan Rajendran
- Escuela Universitaria de Ingeniería Mecánica (EUDIM), Universidad de Tarapacá, Avda. General Velásquez 1775, Arica, Chile
| | - Xinyu Zhang
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Riping Liu
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P. R. China
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38
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Ultrasonic-Assisted Synthesis of 2D α-Fe2O3@g-C3N4 Composite with Excellent Visible Light Photocatalytic Activity. Catalysts 2018. [DOI: 10.3390/catal8100457] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this study, α-Fe2O3@g-C3N4 photocatalyst was synthesized using an ultrasonic assisted self-assembly preparation method. The α-Fe2O3@g-C3N4 photocatalyst had a stronger optical absorption in the visible light region than pure graphitic carbon nitride (g-C3N4). The Z-Scheme heterojunction between α-Fe2O3 and g-C3N4 significantly inhibited the recombination of electrons and holes. The photocatalytic performances of α-Fe2O3@g-C3N4 photocatalyst were excellent in degradation of Rhodamine B (RhB) under visible light irradiation. The results indicated that 5 wt.% α-Fe2O3/g-C3N4 had the optimal photocatalytic activity because two-dimension (2D) α-Fe2O3 nanosheets can be well-dispersed on the surface of g-C3N4 layers by ultrasonic assisted treatment. A possible photocatalytic mechanism is also discussed.
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39
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Sun B, Zhou W, Li H, Ren L, Qiao P, Li W, Fu H. Synthesis of Particulate Hierarchical Tandem Heterojunctions toward Optimized Photocatalytic Hydrogen Production. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1804282. [PMID: 30272827 DOI: 10.1002/adma.201804282] [Citation(s) in RCA: 168] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/05/2018] [Indexed: 05/11/2023]
Abstract
Photocatalytic hydrogen production using semiconductors is identified as one of the most promising routes for sustainable energy; however, it is challenging to harvest the full solar spectrum in a particulate photocatalyst for high activity. Herein, a hierarchical hollow black TiO2 /MoS2 /CdS tandem heterojunction photocatalyst, which allows broad-spectrum absorption, thus delivering enhanced hydrogen evolution performance is designed and synthesized. The MoS2 nanosheets not only function as a cost-effective cocatalyst but also act as a bridge to connect two light-harvesting semiconductors into a tandem heterojunction where the CdS nanoparticles and black TiO2 spheres absorb UV and visible light on both sides efficiently, coupling with the MoS2 cocatalyst into a particulate photocatalyst system. Consequently, the photocatalytic hydrogen rate of the black TiO2 /MoS2 /CdS tandem heterojunction is as high as 179 µmol h-1 per 20 mg photocatalyst under visible-light irradiation, which is almost 3 times higher than that of black TiO2 /MoS2 heterojunctions (57.2 µmol h-1 ). Most importantly, the stability of CdS nanoparticles in the black TiO2 /MoS2 /CdS tandem heterojunction is greatly improved compared to MoS2 /CdS because of the formation of tandem heterojunctions and the strong UV-absorbing effect of black TiO2 . Such a tandem architectural design provides new ways for synthesizing particulate photocatalysts with high efficiencies.
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Affiliation(s)
- Bojing Sun
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, China
| | - Wei Zhou
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, China
| | - Haoze Li
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, China
| | - Liping Ren
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, China
| | - Panzhe Qiao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, China
| | - Wei Li
- Department of Chemistry, Fudan University, Shanghai, 200433, P. R. China
| | - Honggang Fu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, China
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40
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Gao H, Jia J, Guo F, Li B, Dai D, Deng X, Liu X, Si C, Liu G. The electronic structure and photoactivity of TiO2 modified by hybridization with monolayer g-C3N4. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.06.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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41
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Xu J, Gao J, Qi Y, Wang C, Wang L. Anchoring Ni2
P on the UiO-66-NH2
/g-C3
N4
-derived C-doped ZrO2
/g-C3
N4
Heterostructure: Highly Efficient Photocatalysts for H2
Production from Water Splitting. ChemCatChem 2018. [DOI: 10.1002/cctc.201800353] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jixiang Xu
- Key Laboratory of Eco-chemical Engineering, Ministry of Education, State Laboratory of Inorganic Synthesis and Applied Chemistry, College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; Qingdao 266042 P.R. China
| | - Jianyang Gao
- Key Laboratory of Eco-chemical Engineering, Ministry of Education, State Laboratory of Inorganic Synthesis and Applied Chemistry, College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; Qingdao 266042 P.R. China
| | - Yinhong Qi
- Key Laboratory of Eco-chemical Engineering, Ministry of Education, State Laboratory of Inorganic Synthesis and Applied Chemistry, College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; Qingdao 266042 P.R. China
| | - Chao Wang
- Key Laboratory of Eco-chemical Engineering, Ministry of Education, State Laboratory of Inorganic Synthesis and Applied Chemistry, College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; Qingdao 266042 P.R. China
| | - Lei Wang
- Key Laboratory of Eco-chemical Engineering, Ministry of Education, State Laboratory of Inorganic Synthesis and Applied Chemistry, College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; Qingdao 266042 P.R. China
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42
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Ma D, Shi JW, Zou Y, Fan Z, Shi J, Cheng L, Sun D, Wang Z, Niu C. Multiple carrier-transfer pathways in a flower-like In 2S 3/CdIn 2S 4/In 2O 3 ternary heterostructure for enhanced photocatalytic hydrogen production. NANOSCALE 2018; 10:7860-7870. [PMID: 29664490 DOI: 10.1039/c8nr00170g] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A novel flower-like In2S3/CdIn2S4/In2O3 (ICS) ternary heterostructure (HS) is rationally constructed for the first time by a series of carefully designed procedures. In2O3 nanoflakes are the main constituent units which assemble into a flower-like skeleton structure, and CdIn2S4 nanoparticles are in situ generated on the surface of In2O3 nanoflakes through the transformation of CdS quantum dots (QDs) while In2S3 nanoparticles are in situ produced at the region between CdIn2S4 nanoparticles and In2O3 nanoflakes resulting from a synchronous sulfuration procedure. As expected, the rationally designed ICS ternary HSs display significantly enhanced photocatalytic H2 production, especially ICS5 (sulfurized for 5 h) with the highest H2 evolution rate of 20.04 μmol h-1 (10 mg catalyst is used for photocatalytic reaction), which is 26.7 times and 2.6 times higher than that of pure In2O3 (0.75 μmol h-1) and In2S3/In2O3 binary HS (7.88 μmol h-1), respectively. The enhanced photocatalytic activity can be attributed to the multiple interfaces formed in the ICS HSs, including the CdIn2S4-In2O3 interface, the In2S3-In2O3 interface, and the CdIn2S4-In2O3-In2S3 interface, which construct multiple pathways for the transfer of photogenerated charge carriers, effectively promoting the photocatalytic hydrogen production.
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Affiliation(s)
- Dandan Ma
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
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43
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Tang N, Li Y, Chen F, Han Z. In situ fabrication of a direct Z-scheme photocatalyst by immobilizing CdS quantum dots in the channels of graphene-hybridized and supported mesoporous titanium nanocrystals for high photocatalytic performance under visible light. RSC Adv 2018; 8:42233-42245. [PMID: 35558760 PMCID: PMC9092058 DOI: 10.1039/c8ra08008a] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 11/23/2018] [Indexed: 12/22/2022] Open
Abstract
We report the considerable advantages of direct Z-scheme photocatalysts by immobilizing high-quality CdS quantum dots (QDs) in the channels of graphene-hybridized and supported mesoporous titania (GMT) nanocrystals (CdS@GMT/GR) under facile hydrothermal conditions. The photocatalysts have been characterized by XRD, PL, XPS, SEM, DRS, TEM, EIS, and N2 adsorption. CdS QDs primarily serve as photosensitizers with a unique pore-embedded structure for the effective utilization of the light source. This direct Z-scheme CdS@GMT/GR exhibits higher photocatalytic activity than CdS/GR, GMT/GR, or CdS@MT. In addition, the rate constant of CdS@GMT/GR-2 is approximately twice the sum of those of CdS@MT and GMT/GR, because GR played the role of hole-transporting and collection layer as well as the hybridization level formation in terms of hybridizing MT and serving as a support. Therefore, the GR content tunes the energy band, affects the surface area, and controls the interfacial hole transfer and collection rate of the direct Z-scheme system. Furthermore, CdS@GMT/GR retains its high performance in repeated photocatalytic processes. This can be attributed to the fact that GR prevents QDs from photocorrosion by means of the hole-transporting and collection effect. A possible reaction mechanism is proposed. This work provides a promising strategy for the construction of highly efficient visible-light-driven photocatalysts to reduce the growing menace of environmental pollution. CdS@GMT/GR exhibits high photocatalytic activity due to its direct Z-scheme structure obtained by immobilizing CdS quantum dots in the channels of GMT nanocrystals.![]()
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Affiliation(s)
- Ningmei Tang
- College of Chemistry and Chemical Engineering
- Jishou University
- P. R. China
| | - Youji Li
- College of Chemistry and Chemical Engineering
- Jishou University
- P. R. China
| | - Feitai Chen
- College of Chemistry and Chemical Engineering
- Jishou University
- P. R. China
| | - Zhenying Han
- College of Chemistry and Chemical Engineering
- Jishou University
- P. R. China
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