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Ma X, He J, Liu Y, Bai X, Leng J, Zhao Y, Chen D, Wang J. Plant Photocatalysts: Photoinduced Oxidation and Reduction Abilities of Plant Leaf Ashes under Solar Light. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2260. [PMID: 37570577 PMCID: PMC10421452 DOI: 10.3390/nano13152260] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023]
Abstract
Plant leaf ashes were obtained via the high temperature calcination of the leaves of various plants, such as sugarcane, couchgrass, bracteata, garlic sprout, and the yellowish leek. Although the photosynthesis systems in plant leaves cannot exist after calcination, minerals in these ashes were found to exhibit photochemical activities. The samples showed solar light photocatalytic oxidation activities sufficient to degrade methylene blue dye. They were also shown to possess intrinsic dehydrogenase-like activities in reducing the colorless electron acceptor 2,3,5-triphenyltetrazolium chloride to a red formazan precipitate under solar light irradiation. The possible reasons behind these two unreported phenomena were also investigated. These ashes were characterized using a combination of physicochemical techniques. Moreover, our findings exemplify how the soluble and insoluble minerals in plant leaf ashes can be synergistically designed to yield next-generation photocatalysts. It may also lead to advances in artificial photosynthesis and photocatalytic dehydrogenase.
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Affiliation(s)
- Xiaoqian Ma
- School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
| | - Jiao He
- School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
| | - Yu Liu
- School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Xiaoli Bai
- School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
| | - Junyang Leng
- School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
| | - Yi Zhao
- School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
| | - Daomei Chen
- School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Jiaqiang Wang
- School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
- School of Materials and Energy, Yunnan University, Kunming 650091, China
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2
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Liu D, Zhang T, Cheng X, Wang B, Guo Y, Liu Z, Jiang H, Lu Y. Engineering Pollen-Derived Microstructures to Reveal Material Morpho-Performance Paradigm. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2200037. [PMID: 35396772 DOI: 10.1002/smll.202200037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 03/23/2022] [Indexed: 06/14/2023]
Abstract
The morphologies of micromaterials play a key role in their functionality and efficiency across a broad range of applications, including catalysis, environmental remediation, and drug delivery. However, the relationships between the morphologies and performances of micromaterials still need to be further understood, to guide the rational design of effective morphologies for specific applications. A pollen-derived microstructure library containing multivariate morphological characterization and functional performance data is proposed and constructed here. Systematic multivariate correlation analysis is conducted to extract the key morphological factors influencing the photocatalytic and adsorption efficiencies, to reveal the morpho-performance relationships of pollen-derived microstructures. Subsequently, a chrysanthemum-derived microstructure is selected as a typical candidate; it features a unique morphology suitable for advanced photocatalysis and dynamic environmental remediation. To summarize, the construction of a pollen-derived microstructure library offers a powerful tool for studying the morpho-performance relationships of micromaterials; this can provide significant guidance and inspiration for the rational design of micro/nanomaterials for numerous applications.
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Affiliation(s)
- Dong Liu
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Ting Zhang
- College of New Energy and Materials, China University of Petroleum, Beijing, 102249, P. R. China
| | - Xiaowen Cheng
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, P. R. China
| | - Bin Wang
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Yijia Guo
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Zhengzuo Liu
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Hao Jiang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Yuan Lu
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
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Biotemplated CdS Nano-Aggregate Networks for Highly Effective Visible-Light Photocatalytic Hydrogen Production. NANOMATERIALS 2022; 12:nano12081268. [PMID: 35457983 PMCID: PMC9026159 DOI: 10.3390/nano12081268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/07/2022] [Accepted: 04/07/2022] [Indexed: 12/04/2022]
Abstract
In the last few decades, many new synthesis techniques have been developed in order to obtain an effective visible-light responsive photocatalyst for hydrogen production by water splitting. Among these new approaches, the biotemplated synthesis method has aroused much attention because of its unique advantages in preparing materials with special morphology and structure. In this work, Hydrilla verticillata (L. f.) Royle was used as a biotemplate to synthesize a CdS photocatalyst. The as-synthesized sample had the microstructure of nano-scaled aggregate networks and its activity for photocatalytic hydrogen production was six times higher than that of CdS synthesized without a template in an Na2S-Na2SO3 sacrificial system. The use of Pt and PdS as cocatalysts further improved the hydrogen production rate to 14.86 mmol/g·h under visible-light (λ ≥ 420 nm) irradiation, so the hydrogen production can be directly observed by the naked eye. The results of characterization showed that the as-synthesized CdS photocatalyst has a high specific surface area and narrow band gap, which is favorable for light absorption and photocatalytic reaction. This work provides a new way to search for efficient visible-light catalysts and confirms the uniqueness of a biotemplated synthesis method in obtaining specially structured materials.
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Li H, Wang L, Wei Y, Yan W, Feng J. Preparation of Templated Materials and Their Application to Typical Pollutants in Wastewater: A Review. Front Chem 2022; 10:882876. [PMID: 35480393 PMCID: PMC9037039 DOI: 10.3389/fchem.2022.882876] [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: 02/24/2022] [Accepted: 03/08/2022] [Indexed: 12/04/2022] Open
Abstract
As the pollution and destruction of global water resources become more and more severe, the treatment of wastewater has attracted significant attention. The template method is a synthetic method in which the template is the main configuration to control, influence, and modify the morphology as well as control the dimensions of the material, thus achieving the properties that determine the material. It is simple, highly reproducible, and predictable, and more importantly, it can effectively control the pore structure, size, and morphology of the material, providing a novel platform for the preparation of adsorbent materials with excellent adsorption properties. This review focuses on the classification of the templates according to their properties and spatial domain-limiting capabilities, reviews the types of hard and soft template materials and their synthetic routes, and further discusses the modulation of the morphological structure of the materials by the introduction of templates. In addition, the application and adsorption mechanisms of heavy metal ions and dyes are reviewed based on the regulatory behavior of the template method.
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5
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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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6
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Biotemplated copper oxide catalysts over graphene oxide for acetaminophen removal: Reaction kinetics analysis and cost estimation. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116593] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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7
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Mutuma BK, Mathebula X, Nongwe I, Mtolo BP, Matsoso BJ, Erasmus R, Tetana Z, Coville NJ. Unravelling the interfacial interaction in mesoporous SiO 2@nickel phyllosilicate/TiO 2 core-shell nanostructures for photocatalytic activity. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:1834-1846. [PMID: 33364142 PMCID: PMC7736695 DOI: 10.3762/bjnano.11.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 11/16/2020] [Indexed: 06/12/2023]
Abstract
Core-shell based nanostructures are attractive candidates for photocatalysis owing to their tunable physicochemical properties, their interfacial contact effects, and their efficacy in charge-carrier separation. This study reports, for the first time, on the synthesis of mesoporous silica@nickel phyllosilicate/titania (mSiO2@NiPS/TiO2) core-shell nanostructures. The TEM results showed that the mSiO2@NiPS composite has a core-shell nanostructure with a unique flake-like shell morphology. XPS analysis revealed the successful formation of 1:1 nickel phyllosilicate on the SiO2 surface. The addition of TiO2 to the mSiO2@NiPS yielded the mSiO2@NiPS/TiO2 composite. The bandgap energy of mSiO2@NiPS and of mSiO2@NiPS/TiO2 were estimated to be 2.05 and 2.68 eV, respectively, indicating the role of titania in tuning the optoelectronic properties of the SiO2@nickel phyllosilicate. As a proof of concept, the core-shell nanostructures were used as photocatalysts for the degradation of methyl violet dye and the degradation efficiencies were found to be 72% and 99% for the mSiO2@NiPS and the mSiO2@NiPS/TiO2 nanostructures, respectively. Furthermore, a recyclability test revealed good stability and recyclability of the mSiO2@NiPS/TiO2 photocatalyst with a degradation efficacy of 93% after three cycles. The porous flake-like morphology of the nickel phyllosilicate acted as a suitable support for the TiO2 nanoparticles. Further, a coating of TiO2 on the mSiO2@NiPS surface greatly affected the surface features and optoelectronic properties of the core-shell nanostructure and yielded superior photocatalytic properties.
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Affiliation(s)
- Bridget K Mutuma
- DSI-NRF Centre of Excellence in Strong Materials and Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, WITS 2050, Johannesburg, South Africa
| | - Xiluva Mathebula
- DSI-NRF Centre of Excellence in Strong Materials and Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, WITS 2050, Johannesburg, South Africa
| | - Isaac Nongwe
- Department of Natural Resources and Materials, Botswana Institute for Technology Research and Innovation, 50654 Machel Drive, Gaborone, Botswana
| | - Bonakele P Mtolo
- DSI-NRF Centre of Excellence in Strong Materials and Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, WITS 2050, Johannesburg, South Africa
| | - Boitumelo J Matsoso
- DSI-NRF Centre of Excellence in Strong Materials and Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, WITS 2050, Johannesburg, South Africa
| | - Rudolph Erasmus
- School of Physics, University of Witwatersrand, WITS 2050, Johannesburg, South Africa
| | - Zikhona Tetana
- DSI-NRF Centre of Excellence in Strong Materials and Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, WITS 2050, Johannesburg, South Africa
| | - Neil J Coville
- DSI-NRF Centre of Excellence in Strong Materials and Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, WITS 2050, Johannesburg, South Africa
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8
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Facile Synthesis of "Boron-Doped" Carbon Dots and Their Application in Visible-Light-Driven Photocatalytic Degradation of Organic Dyes. NANOMATERIALS 2020; 10:nano10081560. [PMID: 32784435 PMCID: PMC7466398 DOI: 10.3390/nano10081560] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 07/30/2020] [Accepted: 08/06/2020] [Indexed: 02/07/2023]
Abstract
Carbon dots (C-dots) were facilely fabricated via a hydrothermal method and fully characterized. Our study shows that the as-synthesized C-dots are nontoxic, negatively charged spherical particles (average diameter 4.7 nm) with excellent water dispersion ability. Furthermore, the C-dots have a rich presence of surface functionalities such as hydroxyls and carboxyls as well as amines. The significance of the C-dots as highly efficient photocatalysts for rhodamine B (RhB) and methylene blue (MB) degradation was explored. The C-dots demonstrate excellent photocatalytic activity, achieving 100% of RhB and MB degradation within 170 min. The degradation rate constants for RhB and MB were 1.8 × 10−2 and 2.4 × 10−2 min−1, respectively. The photocatalytic degradation performances of the C-dots are comparable to those metal-based photocatalysts and generally better than previously reported C-dots photocatalysts. Collectively considering the excellent photocatalytic activity toward organic dye degradation, as well as the fact that they are facilely synthesized with no need of further doping, compositing, and tedious purification and separation, the C-dots fabricated in this work are demonstrated to be a promising alternative for pollutant degradation and environment protection.
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9
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Pomelli CS, D’Andrea F, Mezzetta A, Guazzelli L. Exploiting pollen and sporopollenin for the sustainable production of microstructures. NEW J CHEM 2020. [DOI: 10.1039/c9nj05082e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Pollen grains can be easily processed in order to obtain versatile and sustainable microcapsules.
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Affiliation(s)
| | | | - Andrea Mezzetta
- Dipartimento di Farmacia – Università di Pisa
- 56125 Pisa
- Italy
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10
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Palas B, Ersöz G, Atalay S. Bioinspired metal oxide particles as efficient wet air oxidation and photocatalytic oxidation catalysts for the degradation of acetaminophen in aqueous phase. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 182:109367. [PMID: 31252351 DOI: 10.1016/j.ecoenv.2019.109367] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 06/16/2019] [Accepted: 06/17/2019] [Indexed: 06/09/2023]
Abstract
The catalytic performances of the biomimetic metal oxides were tested in photo Fenton-like oxidation and catalytic wet air oxidation processes. Biomimetic copper oxide, iron oxide, and cobalt oxide catalysts were prepared by using pollen grains as biotemplate. The surface characteristics of the biomimetic metal oxides were characterized. SEM micrographs of the biomimetic catalysts demonstrated that pollen grains were successfully mimicked by metal oxide structures. The influences of UV light intensity, catalyst loading, and the initial hydrogen peroxide concentration on acetaminophen degradation were investigated in the photo Fenton-like oxidation process whereas the effects of reaction temperature and catalyst loading were investigated in catalytic wet air oxidation process. The biomimetic copper oxide was the most effective catalyst for the removal of acetaminophen in both of the advanced oxidation processes. The highest acetaminophen degradation efficiency was 86.9% in photo Fenton-like oxidation process when the initial acetaminophen concentration, catalyst loading, and the initial H2O2 concentrations were 10 mg/L, 0.1 g/L and 1 mM, respectively, at room temperature. In the catalytic wet air oxidation process, 98.3% degradation was achieved for the treatment of 100 mg/L acetaminophen solutions at 180 °C and 10 bar by using 1 g/L of catalyst loading at the same reaction time as photo Fenton-like oxidation. Mineralization analysis and the toxicity tests indicated that the biomimetic copper oxide catalysts were promising for the acetaminophen removal in catalytic wet air oxidation processes.
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Affiliation(s)
- Burcu Palas
- Chemical Engineering Department, Faculty of Engineering, Ege University, 35100, Bornova, İzmir, Turkey.
| | - Gülin Ersöz
- Chemical Engineering Department, Faculty of Engineering, Ege University, 35100, Bornova, İzmir, Turkey.
| | - Süheyda Atalay
- Chemical Engineering Department, Faculty of Engineering, Ege University, 35100, Bornova, İzmir, Turkey.
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11
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Noble Metal-Free Ceria-Zirconia Solid Solutions Templated by Tobacco Materials for Catalytic Oxidation of CO. Catalysts 2016. [DOI: 10.3390/catal6090135] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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12
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Zan G, Wu Q. Biomimetic and Bioinspired Synthesis of Nanomaterials/Nanostructures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:2099-147. [PMID: 26729639 DOI: 10.1002/adma.201503215] [Citation(s) in RCA: 175] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 09/09/2015] [Indexed: 05/13/2023]
Abstract
In recent years, due to its unparalleled advantages, the biomimetic and bioinspired synthesis of nanomaterials/nanostructures has drawn increasing interest and attention. Generally, biomimetic synthesis can be conducted either by mimicking the functions of natural materials/structures or by mimicking the biological processes that organisms employ to produce substances or materials. Biomimetic synthesis is therefore divided here into "functional biomimetic synthesis" and "process biomimetic synthesis". Process biomimetic synthesis is the focus of this review. First, the above two terms are defined and their relationship is discussed. Next different levels of biological processes that can be used for process biomimetic synthesis are compiled. Then the current progress of process biomimetic synthesis is systematically summarized and reviewed from the following five perspectives: i) elementary biomimetic system via biomass templates, ii) high-level biomimetic system via soft/hard-combined films, iii) intelligent biomimetic systems via liquid membranes, iv) living-organism biomimetic systems, and v) macromolecular bioinspired systems. Moreover, for these five biomimetic systems, the synthesis procedures, basic principles, and relationships are discussed, and the challenges that are encountered and directions for further development are considered.
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Affiliation(s)
- Guangtao Zan
- Department of Chemistry, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, 200092, P. R. China
- School of Materials Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Qingsheng Wu
- Department of Chemistry, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, 200092, P. R. China
- School of Materials Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
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13
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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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14
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Li J, Li Z, Zi G, Yao Z, Luo Z, Wang Y, Xue D, Wang B, Wang J. Synthesis, characterizations and catalytic allylic oxidation of limonene to carvone of cobalt doped mesoporous silica templated by reed leaves. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2014.10.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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15
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Fattakhova-Rohlfing D, Zaleska A, Bein T. Three-Dimensional Titanium Dioxide Nanomaterials. Chem Rev 2014; 114:9487-558. [DOI: 10.1021/cr500201c] [Citation(s) in RCA: 303] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Dina Fattakhova-Rohlfing
- Department
of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstrasse 5-13 (E), 81377 Munich, Germany
| | - Adriana Zaleska
- Department
of Environmental Technology, Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Thomas Bein
- Department
of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstrasse 5-13 (E), 81377 Munich, Germany
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16
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He J, Zi G, Yan Z, Li Y, Xie J, Duan D, Chen Y, Wang J. Biogenic C-doped titania templated by cyanobacteria for visible-light photocatalytic degradation of Rhodamine B. J Environ Sci (China) 2014; 26:1195-1202. [PMID: 25079651 DOI: 10.1016/s1001-0742(13)60475-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 07/23/2013] [Accepted: 08/08/2013] [Indexed: 06/03/2023]
Abstract
Cyanobacteria, which occurred in eutrophic water harvest solar light to carry out photosynthesis with high efficiency. In this work, cyanobacteria (Microcystis sp.) were used as biotemplate to synthesize titania structure. The synthesized titania sample had similar morphology to that of the original template in spite of the fragile unicellular structures and extremely high water content of cyanobacterial cells. Incorporation of biogenic C, as well as the morphology inherited from biotemplate improved visible-light absorbance of the titania structure. The sample exhibited higher visible-light photocatalytic activity than commercial titania photocatalyst Degussa P25 for Rhodamine B (RhB) degradation. Compared with those C-doped titania photocatalysts prepared by other methods, cyanobacteria templated titania photocatalyst offer some potential for competitive advantages. The reported strategy opened up a new use for the cyanobacteria. It could also be used for titania in applications such as treatment of polluted water, dye-sensitized solar cells, or other regions.
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Affiliation(s)
- Jiao He
- The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China.
| | - Guoli Zi
- The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
| | - Zhiying Yan
- The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China.
| | - Yongli Li
- The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
| | - Jiao Xie
- The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
| | - Deliang Duan
- The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
| | - Yongjuan Chen
- The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
| | - Jiaqiang Wang
- The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China.
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17
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Nair GR, Samdarshi SK, Boury B. Surface Mineralization of Cellulose by Metal Chloride - an Original Pathway for the Synthesis of Hierarchical Urchin and Needle Carpetlike TiO2Superstructures. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300669] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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18
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Zhao X. Hydrothermal Biotemplated Synthesis of Biomorphic Porous CeO2 and Their Catalytic Performance. J Inorg Organomet Polym Mater 2012. [DOI: 10.1007/s10904-012-9788-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Selective adsorption and release of cationic organic dye molecules on mesoporous borosilicates. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012; 32:1461-8. [DOI: 10.1016/j.msec.2012.04.026] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Revised: 02/29/2012] [Accepted: 04/19/2012] [Indexed: 01/26/2023]
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Virkutyte J, Varma RS. Synthesis and visible light photoactivity of anatase Ag and garlic loaded TiO2 nanocrystalline catalyst. RSC Adv 2012. [DOI: 10.1039/c2ra00790h] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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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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