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Roostaei T, Rahimpour MR, Zhao H, Eisapour M, Chen Z, Hu J. Recent advances and progress in biotemplate catalysts for electrochemical energy storage and conversion. Adv Colloid Interface Sci 2023; 318:102958. [PMID: 37453344 DOI: 10.1016/j.cis.2023.102958] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/05/2023] [Accepted: 06/30/2023] [Indexed: 07/18/2023]
Abstract
Complex structures and morphologies in nature endow materials with unexpected properties and extraordinary functions. Biotemplating is an emerging strategy for replicating nature structures to obtain materials with unique morphologies and improved properties. Recently, efforts have been made to use bio-inspired species as a template for producing morphology-controllable catalysts. Fundamental information, along with recent advances in biotemplate metal-based catalysts are presented in this review through discussions of various structures and biotemplates employed for catalyst preparation. This review also outlines the recent progress on preparation routes of biotemplate catalysts and discusses how the properties and structures of these templates play a crucial role in the final performance of metal-based catalysts. Additionally, the application of bio-based metal and metal oxide catalysts is highlighted for various key energy and environmental technologies, including photocatalysis, fuel cells, and lithium batteries. Biotemplate metal-based catalysts display high efficiency in several energy and environmental systems. Note that this review provides guidance for further research in this direction.
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Affiliation(s)
- Tayebeh Roostaei
- Department of Chemical Engineering, Shiraz University, Shiraz, Iran; Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N1N4, Canada
| | | | - Heng Zhao
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N1N4, Canada
| | - Mehdi Eisapour
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N1N4, Canada
| | - Zhangxin Chen
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N1N4, Canada; Eastern Institute for Advanced Study, Ningbo, Zhengjiang 315200, China
| | - Jinguang Hu
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N1N4, Canada.
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2
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Synthesis and Characterization Studies of γ-Alumina Catalyst Prepared by Orange Peels as a Template. Top Catal 2022. [DOI: 10.1007/s11244-022-01578-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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3
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Roostaie T, Abbaspour M, Makarem MA, Rahimpour MR. Synthesis and Characterization of Biotemplate γ-Al2O3 Nanoparticles Based on Morus alba Leaves. Top Catal 2022. [DOI: 10.1007/s11244-022-01572-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sajjad M, Lu W. Honeycomb‐based heterostructures: An emerging platform for advanced energy applications: A review on energy systems. ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Muhammad Sajjad
- School of Chemical Sciences and Engineering Yunnan University Kunming 650091 China
- Institute of Energy Storage Technologies Yunnan University Kunming China
| | - Wen Lu
- School of Chemical Sciences and Engineering Yunnan University Kunming 650091 China
- Institute of Energy Storage Technologies Yunnan University Kunming China
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5
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Liu G, Wong WSY, Kraft M, Ager JW, Vollmer D, Xu R. Wetting-regulated gas-involving (photo)electrocatalysis: biomimetics in energy conversion. Chem Soc Rev 2021; 50:10674-10699. [PMID: 34369513 DOI: 10.1039/d1cs00258a] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
(Photo)electrolysis of water or gases with water to species serving as industrial feedstocks and energy carriers, such as hydrogen, ammonia, ethylene, propanol, etc., has drawn tremendous attention. Moreover, these processes can often be driven by renewable energy under ambient conditions as a sustainable alternative to traditional high-temperature and high-pressure synthesis methods. In addition to the extensive studies on catalyst development, increasing attention has been paid to the regulation of gas transport/diffusion behaviors during gas-involving (photo)electrocatalytic reactions towards the goal of creating industrially viable catalytic systems with high reaction rates, excellent long-term stabilities and near-unity selectivities. Biomimetic surfaces and systems with special wetting capabilities and structural advantages can shed light on the future design of (photo)electrodes and address long-standing challenges. This article is dedicated to bridging the fields of wetting and catalysis by reviewing the cutting-edge design methodologies of both gas-evolving and gas-consuming (photo)electrocatalytic systems. We first introduce the fundamentals of various in-air/underwater wetting states and their corresponding bioinspired structural properties. The relationship amongst the bubble transport behavior, wettability, and porosity/tortuosity is also discussed. Next, the latest implementations of wetting-related design principles for gas-evolving reactions (i.e. the hydrogen evolution reaction and oxygen evolution reaction) and gas-consuming reactions (i.e. the oxygen reduction reaction and CO2 reduction reaction) are summarized. For photoelectrode designs, additional factors are taken into account, such as light absorption and the separation, transport and recombination of photoinduced electrons and holes. The influences of wettability and 3D structuring of (photo)electrodes on the catalytic activity, stability and selectivity are analyzed to reveal the underlying mechanisms. Finally, remaining questions and related future perspectives are outlined.
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Affiliation(s)
- Guanyu Liu
- School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 Singapore. and Cambridge Centre for Advanced Research and Education in Singapore (CARES), CREATE Tower, 1 Create Way, 138602 Singapore
| | - William S Y Wong
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128, Mainz, Germany
| | - Markus Kraft
- Cambridge Centre for Advanced Research and Education in Singapore (CARES), CREATE Tower, 1 Create Way, 138602 Singapore and Department of Chemical Engineering and Biotechnology, University of Cambridge, West Cambridge Site, Philippa Fawcett Drive, Cambridge CB3 0AS, UK
| | - Joel W Ager
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA and Berkeley Educational Alliance for Research in Singapore (BEARS), CREATE Tower, 1 Create Way, 138602 Singapore
| | - Doris Vollmer
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128, Mainz, Germany
| | - Rong Xu
- School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 Singapore. and Cambridge Centre for Advanced Research and Education in Singapore (CARES), CREATE Tower, 1 Create Way, 138602 Singapore
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6
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Serrà A, Philippe L, Perreault F, Garcia-Segura S. Photocatalytic treatment of natural waters. Reality or hype? The case of cyanotoxins remediation. WATER RESEARCH 2021; 188:116543. [PMID: 33137522 DOI: 10.1016/j.watres.2020.116543] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/18/2020] [Accepted: 10/19/2020] [Indexed: 05/08/2023]
Abstract
This review compiles recent advances and challenges in the photocatalytic treatment of natural water by analyzing the remediation of cyanotoxins. The review frames the treatment need based on the occurrence, geographical distribution, and legislation of cyanotoxins in drinking water while highlighting the underestimated global risk of cyanotoxins. Next, the fundamental principles of photocatalytic treatment for remediating cyanotoxins and the complex degradation pathway for the most widespread cyanotoxins are presented. The state-of-the-art and recent advances on photocatalytic treatment processes are critically discussed, especially the modification strategies involving TiO2 and the primary operational conditions that determine the scalability and integration of photocatalytic reactors. The relevance of light sources and light delivery strategies are shown, with emphasis on novel biomimicry materials design. Thereafter, the seldomly-addressed role of water-matrix components is thoroughly and critically explored by including natural organic matter and inorganic species to provide future directions in designing highly efficient strategies and scalable reactors.
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Affiliation(s)
- Albert Serrà
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, CH-3602 Thun, Switzerland.
| | - Laetitia Philippe
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, CH-3602 Thun, Switzerland
| | - François Perreault
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment. School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, 85287-3005, USA
| | - Sergi Garcia-Segura
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment. School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, 85287-3005, USA.
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Cai A, Guo A, Ma Z. Immobilization of TiO₂ Nanoparticles on Chlorella pyrenoidosa Cells for Enhanced Visible-Light-Driven Photocatalysis. MATERIALS 2017; 10:ma10050541. [PMID: 28772899 PMCID: PMC5459020 DOI: 10.3390/ma10050541] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 05/04/2017] [Accepted: 05/09/2017] [Indexed: 11/24/2022]
Abstract
TiO2 nanoparticles are immobilized on chlorella cells using the hydrothermal method. The morphology, structure, and the visible-light-driven photocatalytic activity of the prepared chlorella/TiO2 composite are investigated by various methods. The chlorella/TiO2 composite is found to exhibit larger average sizes and higher visible-light intensities. The sensitization of the photosynthesis pigment originating from chlorella cells provides the anatase TiO2 with higher photocatalytic activities under the visible-light irradiation. The latter is linked to the highly efficient charge separation of the electron/hole pairs. The results also suggest that the photocatalytic activity of the composite remains substantial after four cycles, suggesting a good stability.
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Affiliation(s)
- Aijun Cai
- College of Life Science and Technology, Hebei Normal University of Science & Technology, Qinhuangdao 066600, China.
- College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang 050016, China.
| | - Aiying Guo
- College of Life Science and Technology, Hebei Normal University of Science & Technology, Qinhuangdao 066600, China.
| | - Zichuan Ma
- College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang 050016, China.
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Yang XY, Chen LH, Li Y, Rooke JC, Sanchez C, Su BL. Hierarchically porous materials: synthesis strategies and structure design. Chem Soc Rev 2017; 46:481-558. [DOI: 10.1039/c6cs00829a] [Citation(s) in RCA: 839] [Impact Index Per Article: 119.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This review addresses recent advances in synthesis strategies of hierarchically porous materials and their structural design from micro-, meso- to macro-length scale.
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Affiliation(s)
- Xiao-Yu Yang
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
| | - Li-Hua Chen
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
| | - Yu Li
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
| | - Joanna Claire Rooke
- Laboratory of Inorganic Materials Chemistry (CMI)
- University of Namur
- B-5000 Namur
- Belgium
| | - Clément Sanchez
- Chimie de la Matiere Condensee de Paris
- UniversitePierre et Marie Curie (Paris VI)
- Collège de France
- France
| | - Bao-Lian Su
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
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9
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Cai A, Wang X, Guo A, Chang Y. Mussel-inspired green synthesis of polydopamine-Ag-AgCl composites with efficient visible-light-driven photocatalytic activity. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 162:486-492. [DOI: 10.1016/j.jphotobiol.2016.07.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 07/05/2016] [Accepted: 07/18/2016] [Indexed: 11/28/2022]
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10
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Li W, Pei X, Deng F, Luo X, Li F, Xiao Y. Bio-inspired artificial functional photocatalyst: biomimetic enzyme-like TiO2/reduced graphene oxide nanocomposite with excellent molecular recognition ability. NANOTECHNOLOGY 2015; 26:175706. [PMID: 25851067 DOI: 10.1088/0957-4484/26/17/175706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An enzyme-like TiO(2)/reduced graphene oxide (enzyme-TiO(2)/rGO) nanocomposite with molecular recognition ability was fabricated by biomimicking the geometrical and chemical complementation of the enzyme and substrate. The anatase TiO(2) nanocrystals were densely dispersed on rGO nanosheets with close interfacial contacts. With geometrical and chemical matching of target molecules and memorized cavities, the adsorption capacity of enzyme-TiO(2)/rGO nanocomposites for 4-nitrophenol (4.71 mg g(-1)) is about six times that of control TiO(2)/rGO without the enzyme-like feature (0.79 mg g(-1)), and the enzyme-TiO(2)/rGO shows a relative selectivity coefficient of 7.24. Moreover, enzyme-TiO(2)/rGO exhibits molecular recognitive photocatalytic degradation for a particular contaminant. The results demonstrate that enzyme-substrate recognition provides a convenient and powerful basis on which to biomimic and construct efficient photocatalysts with high selectivity.
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Affiliation(s)
- Wentao Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, People's Republic of China. College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, People's Republic of China
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11
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Gu J, Zhang W, Su H, Fan T, Zhu S, Liu Q, Zhang D. Morphology genetic materials templated from natural species. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:464-478. [PMID: 25331783 DOI: 10.1002/adma.201401413] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2014] [Revised: 05/07/2014] [Indexed: 06/04/2023]
Abstract
The structural characteristics of natural species have been optimized by natural selection for millions of years. They offer specific functions much more effectively than artificial approaches. Morphology genetic materials utilize morphologies gleaned from natural selection into their hierarchical structures. The combination of natural morphologies and manually selected functional materials makes these novel materials suitable for many applications. This review focuses on the strategies by which the structures and functions of natural species can be utilized. Specific functions inherited from both the natural microstructures and coupled functional materials are highlighted with regard to various applications, including photonics, light-harvesting, surface-enhanced Raman scattering (SERS), and electrodes for supercapacitors and batteries, as well as environmentally friendly materials.
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Affiliation(s)
- Jiajun Gu
- State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
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12
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Li J, Chen Y, Wang Y, Yan Z, Duan D, Wang J. Synthesis and photocatalysis of mesoporous titania templated by natural rubber latex. RSC Adv 2015. [DOI: 10.1039/c4ra15566a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The natural latex secreted by plants was used as a biotemplate to synthesize porous materials, and high photocatalytic activity was achieved by using this natural rubber latex templated titania under solar light.
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Affiliation(s)
- Junjie Li
- Yunnan Engineering Research Center of Photocatalytic Treatment of Industrial Wastewater
- The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Yunnan University
| | - Yongjuan Chen
- Yunnan Engineering Research Center of Photocatalytic Treatment of Industrial Wastewater
- The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Yunnan University
| | - Yunan Wang
- Yunnan Engineering Research Center of Photocatalytic Treatment of Industrial Wastewater
- The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Yunnan University
| | - Zhiying Yan
- Yunnan Engineering Research Center of Photocatalytic Treatment of Industrial Wastewater
- The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Yunnan University
| | - Deliang Duan
- Yunnan Engineering Research Center of Photocatalytic Treatment of Industrial Wastewater
- The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Yunnan University
| | - Jiaqiang Wang
- Yunnan Engineering Research Center of Photocatalytic Treatment of Industrial Wastewater
- The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Yunnan University
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Hu H, Jiao Z, Lu G, Ye J, Bi Y. Enhanced photocatalytic properties of biomimetic Ag/AgCl heterostructures. RSC Adv 2014. [DOI: 10.1039/c4ra04804k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hierarchical Ag/AgCl hetero-structures have been fabricated in high-yield by copying the natural architecture of a branch with green leaves, and exhibit higher photocatalytic activities than Ag/AgCl nanowires, AgCl nanoparticles, Ag nanowires, and N-doped TiO2 for the degradation of organic contaminants under visible light irradiation.
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Affiliation(s)
- Hongyan Hu
- State Key Laboratory for Oxo Synthesis & Selective Oxidation
- Lanzhou Institute of Chemical Physics
- CAS
- Lanzhou 730000, China
| | - Zhengbo Jiao
- State Key Laboratory for Oxo Synthesis & Selective Oxidation
- Lanzhou Institute of Chemical Physics
- CAS
- Lanzhou 730000, China
| | - Gongxuan Lu
- State Key Laboratory for Oxo Synthesis & Selective Oxidation
- Lanzhou Institute of Chemical Physics
- CAS
- Lanzhou 730000, China
| | - Jinhua Ye
- International Center for Materials Nanoarchitectonics (MANA), and Research Unit for Environmental Remediation Materials
- National Institute for Materials Science (NIMS)
- Tsukuba 305-0047, Japan
| | - Yingpu Bi
- State Key Laboratory for Oxo Synthesis & Selective Oxidation
- Lanzhou Institute of Chemical Physics
- CAS
- Lanzhou 730000, China
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14
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Electron microscopic studies of growth of nanoscale catalysts and soot particles in a candle flame. APPLIED PETROCHEMICAL RESEARCH 2012. [DOI: 10.1007/s13203-012-0013-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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15
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Greer HF, Zhou W, Liu MH, Tseng YH, Mou CY. The origin of ZnO twin crystals in bio-inspired synthesis. CrystEngComm 2012. [DOI: 10.1039/c1ce05958k] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhou H, Fan T, Zhang D. Biotemplated materials for sustainable energy and environment: current status and challenges. CHEMSUSCHEM 2011; 4:1344-87. [PMID: 21905237 DOI: 10.1002/cssc.201100048] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2011] [Indexed: 05/16/2023]
Abstract
Materials science will play a key role in the further development of emerging solutions for the increasing problems of energy and environment. Materials found in nature have many inspiring structures, such as hierarchical organizations, periodic architectures, or nanostructures, that endow them with amazing functions, such as energy harvesting and conversion, antireflection, structural coloration, superhydrophobicity, and biological self-assembly. Biotemplating is an effective strategy to obtain morphology-controllable materials with structural specificity, complexity, and related unique functions. Herein, we highlight the synthesis and application of biotemplated materials for six key areas of energy and environment technologies, namely, photocatalytic hydrogen evolution, CO(2) reduction, solar cells, lithium-ion batteries, photocatalytic degradation, and gas/vapor sensing. Although the applications differ from each other, a common fundamental challenge is to realize optimum structures for improved performances. We highlight the role of four typical structures derived from biological systems exploited to optimize properties: hierarchical (porous) structures, periodic (porous) structures, hollow structures, and nanostructures. We also provide examples of using biogenic elements (e.g., C, Si, N, I, P, S) for the creation of active materials. Finally, we disscuss the challenges of achieving the desired performance for large-scale commercial applications and provide some useful prototypes from nature for the biomimetic design of new materials or systems. The emphasis is mainly focused on the structural effects and compositional utilization of biotemplated materials.
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Affiliation(s)
- Han Zhou
- State Key Lab of Metal Matrix Composites, Shanghai JiaoTong University, Shanghai 200240, PR China
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17
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Li D, Xiong K, Yang Z, Liu C, Feng X, Lu X. Process intensification of heterogeneous photocatalysis with static mixer: Enhanced mass transfer of reactive species. Catal Today 2011. [DOI: 10.1016/j.cattod.2011.04.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Cao H, Xiao Y, Zhang S. The synthesis and photocatalytic activity of ZnSe microspheres. NANOTECHNOLOGY 2011; 22:015604. [PMID: 21135462 DOI: 10.1088/0957-4484/22/1/015604] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
This paper reports the synthesis of semiconductor ZnSe microspheres composed of nanoparticles via a solvothermal route between the organic molecule selenophene (C(4)H(4) Se) and ZnCl(2) without adding any surfactant. The ZnSe microspheres were characterized by x-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), specific surface area measurement, and photoluminescence (PL) spectra. A strong and broad blue PL emission at 443 nm in wavelength (∼2.79 eV in photon energy) is attributed to the near-band-edge (NBE) emission of ZnSe, while the 530 nm peak is a defect-related (DL) emission. The photocatalytic activity of the as-prepared ZnSe microspheres was evaluated by photodegradation of methyl orange (MO) dye under ultraviolet (UV) light and visible light irradiation. The degradations of MO reach 94% or 95.1%, close to 100%, in the presence of the as-synthesized ZnSe microspheres or commercial ZnSe powder after 7 or 10 h under UV irradiation, respectively. Meanwhile the degradations of MO reach 94.3% or 60.6% in the presence of the as-synthesized ZnSe microspheres or commercial ZnSe powder after 12 h, respectively. The degradation rate of ZnSe microspheres is twice that of ZnSe commercial powder under UV light irradiation, and three times under visible light irradiation. The degradation process of MO dye on ZnSe microspheres under UV or visible light is also discussed.
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Affiliation(s)
- Huaqiang Cao
- Department of Chemistry, Tsinghua University, Beijing, People's Republic of China.
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Zhou H, Fan T, Zhang D. An Insight into Artificial Leaves for Sustainable Energy Inspired by Natural Photosynthesis. ChemCatChem 2010. [DOI: 10.1002/cctc.201000266] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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A facile gelatin-assisted preparation and photocatalytic activity of zinc oxide nanosheets. Colloids Surf A Physicochem Eng Asp 2010. [DOI: 10.1016/j.colsurfa.2010.08.029] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Dai XJ, Luo YS, Zhang WD, Fu SY. Facile hydrothermal synthesis and photocatalytic activity of bismuth tungstate hierarchical hollow spheres with an ultrahigh surface area. Dalton Trans 2010; 39:3426-32. [DOI: 10.1039/b923443h] [Citation(s) in RCA: 151] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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