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Wang D, Hu Y, Li Y, Jia X, Fang Y, Zhang Z, Zhang X. Self-Seeding Synthesis of Hierarchically Branched Rutile TiO 2 for High-Efficiency Dye-Sensitized Solar Cells. ACS OMEGA 2023; 8:9843-9853. [PMID: 36969442 PMCID: PMC10034777 DOI: 10.1021/acsomega.2c06432] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
This study presents a unique and straightforward room temperature-based wet-chemical technique for the self-seeding preparation of three-dimensional (3D) hierarchically branched rutile TiO2, abbreviated HTs, employing titanate nanotubes as the precursor. In the course of the synthesis, spindle-like rutile TiO2 and the intermediate anatase phase were first obtained through a dissolution/precipitation/recrystallization process, with the former serving as the substrates and the latter as the nucleation precursor to growing the branches, which finally gave birth to the production of 3D HTs nanostructures. When the specifically created hierarchical TiO2 was used as the photoanode in dye-sensitized solar cells (DSCs), a significantly improved power conversion efficiency (PCE) of 8.32% was achieved, outperforming a typical TiO2 (P25) nanoparticle-based reference cell (η = 5.97%) under the same film thickness. The effective combination of robust light scattering, substantial dye loading, and fast electron transport for the HTs nanostructures is responsible for the remarkable performance.
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Affiliation(s)
- Dongting Wang
- Shandong
Provincial Key Laboratory of Chemical Energy Storage and Novel Cell
Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Yifan Hu
- Shandong
Provincial Key Laboratory of Chemical Energy Storage and Novel Cell
Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Yuchen Li
- Shandong
Provincial Key Laboratory of Chemical Energy Storage and Novel Cell
Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Xiangchen Jia
- Shandong
Provincial Key Laboratory of Chemical Energy Storage and Novel Cell
Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Yuzhen Fang
- Shandong
Provincial Key Laboratory of Chemical Energy Storage and Novel Cell
Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Zhiliang Zhang
- College
of Chemical Engineering, Zhejiang University
of Technology, Hangzhou 310014, China
| | - Xianxi Zhang
- Shandong
Provincial Key Laboratory of Chemical Energy Storage and Novel Cell
Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
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2
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Microflowery, Microspherical, and Fan-Shaped TiO2 Crystals via Hierarchical Self-Assembly of Nanorods with Exposed Specific Crystal Facets and Enhanced Photocatalytic Performance. Catalysts 2022. [DOI: 10.3390/catal12020232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
In this paper, khaki titanium dioxide (TiO2) crystals via hierarchical self-assembly of nanorods with different morphologies and specific exposed crystal facets were prepared for the first time by using a TiCl3 treatment process in the presence and absence of morphology-controlling agents. The crystal structure, morphology, microstructure, specific surface area, and separation efficiency of photogenerated electron-hole pairs of the synthesized TiO2 crystals were characterized. The photocatalytic and recycled performances of the synthesized TiO2 crystals in the presence of shape-controlling agents, such as ammonium sulfate (AS), ammonium carbonate (AC), and urea, and the absence of shape-controlling agents (the obtained TiO2 crystals were expressed as AS-TiO2, AC-TiO2, urea-TiO2, and No-TiO2, respectively) were evaluated and compared with the commercial TiO2 (CM-TiO2) crystals. The AS-TiO2 microspheres with exposed uncertain facets exhibited enhanced photocatalytic activity for the degradation of methylene blue solution, which can be attributed to the combined effect of the anatase phase structure, relatively larger specific surface area, and the effective separation of the photogenerated electron-holes.
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3
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Ali Khan A, Tahir M. Construction of an S-Scheme Heterojunction with Oxygen-Vacancy-Rich Trimetallic CoAlLa-LDH Anchored on Titania-Sandwiched Ti3C2 Multilayers for Boosting Photocatalytic CO2 Reduction under Visible Light. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03242] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Azmat Ali Khan
- School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia
- Baluchistan University of Information Technology, Engineering and Management Sciences (BUITEMS), Quetta 87100, Pakistan
| | - Muhammad Tahir
- School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia
- Chemical and Petroleum Engineering Department, UAE University, P.O. Box 15551 Al Ain, United Arab Emirates
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4
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Li Y, Zhang R, Li J, Liu J, Miao Y, Guo J, Shao M. TiO2/CuPc/NiFe-LDH photoanode for efficient photoelectrochemical water splitting. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.09.037] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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5
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Fanming Meng, Liu X, Fan Z, Yu B, Qin R. Alcohol-Induced Synthesis of Photocatalytic TiO2 with Controlled Hierarchical Structure. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2020. [DOI: 10.1134/s0036024419130193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Huang X, Gao X, Xue Q, Wang C, Zhang R, Gao Y, Han Z. Impact of oxygen vacancies on TiO2 charge carrier transfer for photoelectrochemical water splitting. Dalton Trans 2020; 49:2184-2189. [DOI: 10.1039/c9dt04374h] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The impact of oxygen vacancies on charge carrier transfer on TiO2 photoanodes is rationally discussed in this work.
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Affiliation(s)
- Xiaoqian Huang
- National Demonstration Center for Experimental Chemistry Education
- Hebei Key Laboratory of Organic Functional Molecules
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
| | - Xiaoru Gao
- National Demonstration Center for Experimental Chemistry Education
- Hebei Key Laboratory of Organic Functional Molecules
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
| | - Qihui Xue
- National Demonstration Center for Experimental Chemistry Education
- Hebei Key Laboratory of Organic Functional Molecules
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
| | - Can Wang
- National Demonstration Center for Experimental Chemistry Education
- Hebei Key Laboratory of Organic Functional Molecules
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
| | - Ruikang Zhang
- National Demonstration Center for Experimental Chemistry Education
- Hebei Key Laboratory of Organic Functional Molecules
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
| | - Yuanzhe Gao
- National Demonstration Center for Experimental Chemistry Education
- Hebei Key Laboratory of Organic Functional Molecules
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
| | - Zhangang Han
- National Demonstration Center for Experimental Chemistry Education
- Hebei Key Laboratory of Organic Functional Molecules
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
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7
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Muhammad N, Zanoni KPS, Iha NYM, Ahmed S. The Use of Rutile- and Anatase-Titania Layers towards Back Light Scattering in Dye-Sensitized Solar Cells. ChemistrySelect 2018. [DOI: 10.1002/slct.201801569] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Niaz Muhammad
- Department of Chemistry; Quaid-i-Azam University; Islamabad 45320, Islamabad Pakistan
| | - Kassio Papi Silva Zanoni
- Laboratory of Photochemistry and Energy Conversion; Departamento de Química Fundamental, Instituto de Quí o Paulo - USP, Av. -o Paulo, SP; Brazil
| | - Neyde Yukie Murakami Iha
- Laboratory of Photochemistry and Energy Conversion; Departamento de Química Fundamental, Instituto de Quí o Paulo - USP, Av. -o Paulo, SP; Brazil
| | - Safeer Ahmed
- Department of Chemistry; Quaid-i-Azam University; Islamabad 45320, Islamabad Pakistan
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8
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Ri JH, Wu S, Jin J, Peng T. Growth of a sea urchin-like rutile TiO 2 hierarchical microsphere film on Ti foil for a quasi-solid-state dye-sensitized solar cell. NANOSCALE 2017; 9:18498-18506. [PMID: 29160892 DOI: 10.1039/c7nr06360a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A sea urchin-like rutile TiO2 microsphere (RMS) film was fabricated on Ti foil via a hydrothermal process. The resulting rutile TiO2 hierarchical microspheres with a diameter of 5-6 μm are composed of nanorods with a diameter of ∼200 nm and a length of 1-2 μm. The sea urchin-like hierarchical structure leads to the Ti foil-based RMS film possessing much better light-scattering capability in the visible region than the bare Ti foil. By using it as an underlayer of a nanosized anatase TiO2 film (bTPP3) derived from a commercially available paste (TPP3), the corresponding bilayer Ti foil-based quasi-solid-state dye-sensitized solar cell (DSSC) only gives a conversion efficiency of 4.05%, much lower than the single bTPP3 film-based one on Ti foil (5.97%). By spin-coating a diluted TPP3 paste (sTPP3) on the RMS film prior to scraping the bTPP3 film, the resulting RMS/sTPP3/bTPP3 film-based DSSC achieves a significantly enhanced efficiency (7.27%). The electrochemical impedance spectra (EIS) show that the RMS/sTPP3/bTPP3 film possesses better electron transport capability and longer electron lifetime than the bTPP3 film. This work not only provides the first example of directly growing rutile TiO2 hierarchically structured microsphere film on Ti foil suitable for replacing the rigid, heavy and expensive transparent conductive oxide (TCO) glass substrate to serve as a light-scattering underlayer of Ti foil-based quasi-solid-state DSSCs, but also paves a new route to develop Ti foil-based flexible DSSCs with high efficiency, low cost and a wide application field through optimizing the composition and structure of the photoanode.
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Affiliation(s)
- Jin Hyok Ri
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China.
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9
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Preparation of Ti foil-based TiO2 film containing rutile sea urchin-like microspheres covered with anatase nanotubes self-organized layer and its application in dye-sensitized solar cells. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.07.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Zhang R, Shao M, Li Z, Ning F, Wei M, Evans DG, Duan X. Photoelectrochemical Catalysis toward Selective Anaerobic Oxidation of Alcohols. Chemistry 2017; 23:8142-8147. [DOI: 10.1002/chem.201701107] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Ruikang Zhang
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beisanhuan East Road No.15 Beijing P. R. China
| | - Mingfei Shao
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beisanhuan East Road No.15 Beijing P. R. China
| | - Zhenhua Li
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beisanhuan East Road No.15 Beijing P. R. China
| | - Fanyu Ning
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beisanhuan East Road No.15 Beijing P. R. China
| | - Min Wei
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beisanhuan East Road No.15 Beijing P. R. China
| | - David G. Evans
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beisanhuan East Road No.15 Beijing P. R. China
| | - Xue Duan
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beisanhuan East Road No.15 Beijing P. R. China
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11
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Nevárez-Martínez MC, Mazierski P, Kobylański MP, Szczepańska G, Trykowski G, Malankowska A, Kozak M, Espinoza-Montero PJ, Zaleska-Medynska A. Growth, Structure, and Photocatalytic Properties of Hierarchical V₂O₅-TiO₂ Nanotube Arrays Obtained from the One-step Anodic Oxidation of Ti-V Alloys. Molecules 2017; 22:E580. [PMID: 28379185 PMCID: PMC6154676 DOI: 10.3390/molecules22040580] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 03/30/2017] [Accepted: 04/01/2017] [Indexed: 11/19/2022] Open
Abstract
V₂O₅-TiO₂ mixed oxide nanotube (NT) layers were successfully prepared via the one-step anodization of Ti-V alloys. The obtained samples were characterized by scanning electron microscopy (SEM), UV-Vis absorption, photoluminescence spectroscopy, energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (DRX), and micro-Raman spectroscopy. The effect of the applied voltage (30-50 V), vanadium content (5-15 wt %) in the alloy, and water content (2-10 vol %) in an ethylene glycol-based electrolyte was studied systematically to determine their influence on the morphology, and for the first-time, on the photocatalytic properties of these nanomaterials. The morphology of the samples varied from sponge-like to highly-organized nanotubular structures. The vanadium content in the alloy was found to have the highest influence on the morphology and the sample with the lowest vanadium content (5 wt %) exhibited the best auto-alignment and self-organization (length = 1 μm, diameter = 86 nm and wall thickness = 11 nm). Additionally, a probable growth mechanism of V₂O₅-TiO₂ nanotubes (NTs) over the Ti-V alloys was presented. Toluene, in the gas phase, was effectively removed through photodegradation under visible light (LEDs, λmax = 465 nm) in the presence of the modified TiO₂ nanostructures. The highest degradation value was 35% after 60 min of irradiation. V₂O₅ species were ascribed as the main structures responsible for the generation of photoactive e- and h⁺ under Vis light and a possible excitation mechanism was proposed.
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Affiliation(s)
- María C Nevárez-Martínez
- Facultad de Ingeniería Química y Agroindustria, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, P.O. Box 17-01-2759, Quito 170525, Ecuador.
- Centro de Investigación y Control Ambiental "CICAM", Departamento de Ingeniería Civil y Ambiental, Facultad de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, P.O. Box 17-01-2759, Quito 170525, Ecuador.
| | - Paweł Mazierski
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland.
| | - Marek P Kobylański
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland.
| | | | - Grzegorz Trykowski
- Faculty of Chemistry, Nicolaus Copernicus University, Torun 87-100, Poland.
| | - Anna Malankowska
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland.
| | - Magda Kozak
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland.
| | - Patricio J Espinoza-Montero
- Centro de Investigación y Control Ambiental "CICAM", Departamento de Ingeniería Civil y Ambiental, Facultad de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, P.O. Box 17-01-2759, Quito 170525, Ecuador.
| | - Adriana Zaleska-Medynska
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland.
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12
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Self-Organized TiO₂-MnO₂ Nanotube Arrays for Efficient Photocatalytic Degradation of Toluene. Molecules 2017; 22:molecules22040564. [PMID: 28362359 PMCID: PMC6154631 DOI: 10.3390/molecules22040564] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 03/27/2017] [Accepted: 03/28/2017] [Indexed: 11/16/2022] Open
Abstract
Vertically oriented, self-organized TiO₂-MnO₂ nanotube arrays were successfully obtained by one-step anodic oxidation of Ti-Mn alloys in an ethylene glycol-based electrolyte. The as-prepared samples were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), UV-Vis absorption, photoluminescence spectroscopy, X-ray diffraction (XRD), and micro-Raman spectroscopy. The effect of the applied potential (30-50 V), manganese content in the alloy (5-15 wt. %) and water content in the electrolyte (2-10 vol. %) on the morphology and photocatalytic properties was investigated for the first time. The photoactivity was assessed in the toluene removal reaction under visible light, using low-powered LEDs as an irradiation source (λmax = 465 nm). Morphology analysis showed that samples consisted of auto-aligned nanotubes over the surface of the alloy, their dimensions were: diameter = 76-118 nm, length = 1.0-3.4 μm and wall thickness = 8-11 nm. It was found that the increase in the applied potential led to increase the dimensions while the increase in the content of manganese in the alloy brought to shorter nanotubes. Notably, all samples were photoactive under the influence of visible light and the highest degradation achieved after 60 min of irradiation was 43%. The excitation mechanism of TiO₂-MnO₂ NTs under visible light was presented, pointing out the importance of MnO₂ species for the generation of e- and h⁺.
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13
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Sun X, Xu S, Gao Y, Yue M, Yue Q, Gao B. 3D hierarchical golden wattle-like TiO2 microspheres: polar acetone-based solvothermal synthesis and enhanced water purification performance. CrystEngComm 2017. [DOI: 10.1039/c7ce00080d] [Citation(s) in RCA: 18] [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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14
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Ge M, Li Q, Cao C, Huang J, Li S, Zhang S, Chen Z, Zhang K, Al‐Deyab SS, Lai Y. One-dimensional TiO 2 Nanotube Photocatalysts for Solar Water Splitting. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2017; 4:1600152. [PMID: 28105391 PMCID: PMC5238753 DOI: 10.1002/advs.201600152] [Citation(s) in RCA: 168] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 06/16/2016] [Indexed: 05/20/2023]
Abstract
Hydrogen production from water splitting by photo/photoelectron-catalytic process is a promising route to solve both fossil fuel depletion and environmental pollution at the same time. Titanium dioxide (TiO2) nanotubes have attracted much interest due to their large specific surface area and highly ordered structure, which has led to promising potential applications in photocatalytic degradation, photoreduction of CO2, water splitting, supercapacitors, dye-sensitized solar cells, lithium-ion batteries and biomedical devices. Nanotubes can be fabricated via facile hydrothermal method, solvothermal method, template technique and electrochemical anodic oxidation. In this report, we provide a comprehensive review on recent progress of the synthesis and modification of TiO2 nanotubes to be used for photo/photoelectro-catalytic water splitting. The future development of TiO2 nanotubes is also discussed.
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Affiliation(s)
- Mingzheng Ge
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing, EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Qingsong Li
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing, EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Chunyan Cao
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing, EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Jianying Huang
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing, EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Shuhui Li
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing, EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Songnan Zhang
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing, EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Zhong Chen
- School of Materials Science and EngineeringNanyang Technological UniversitySingapore639798Singapore
| | - Keqin Zhang
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing, EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Salem S. Al‐Deyab
- Petrochemical Research ChairDepartment of ChemistryCollege of ScienceKing Saud UniversityRiyadh11451Saudi Arabia
| | - Yuekun Lai
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing, EngineeringSoochow UniversitySuzhou215123P. R. China
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15
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Cheng T, Zhang G, Xia Y, Sun Z, Yang Z, Liu R, Xiao Y, Wang X, Wang M, Ban J, Yang L, Ji Q, Qiu B, Chen G, Chen H, Lin Y, Pei X, Wu Q, Meng JQ, Liu Z, Chen L, Xiao T, Sun LD, Yan CH, Butt HJ, Cheng YJ. Porous titania/carbon hybrid microspheres templated by in situ formed polystyrene colloids. J Colloid Interface Sci 2016; 469:242-256. [DOI: 10.1016/j.jcis.2016.02.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 02/10/2016] [Accepted: 02/11/2016] [Indexed: 11/25/2022]
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16
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Fu X, Fan C, Shi L, Yu S, Wang Z. Hollow TiO2 microspheres: template-free synthesis, remarkable structure stability, and improved photoelectric performance. NEW J CHEM 2016. [DOI: 10.1039/c5nj02380g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
HTS undergo an inside-out Ostwald ripening process, involving the dissolution of amorphous particles and nucleation of the crystalline phase.
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Affiliation(s)
- Xinxin Fu
- State Key Laboratory of Silicon Materials
- Department of Materials Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Chenyao Fan
- State Key Laboratory of Silicon Materials
- Department of Materials Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Lin Shi
- State Key Laboratory of Silicon Materials
- Department of Materials Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Siqi Yu
- State Key Laboratory of Silicon Materials
- Department of Materials Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Zhiyu Wang
- State Key Laboratory of Silicon Materials
- Department of Materials Science and Engineering
- Zhejiang University
- Hangzhou
- China
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17
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Liu Y, Wang DD, Ni J, Zhang SF, Jin XJ, Lv SJ, Wang ZW, Lei JF. Ordered RTiO2@ATiO2 architecture for dye-sensitized solar cell applications. RSC Adv 2016. [DOI: 10.1039/c6ra21420g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
RTiO2@ATiO2 architectures are constructed, in which 1D rutile TiO2 (RTiO2) arrays allow a fast electron transport and branched anatase TiO2 (ATiO2) particles benefit the dye harvesting.
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Affiliation(s)
- Y. L. Liu
- School of Materials and Engineering
- Henan University of Science and Technology
- Luoyang 471023
- China
| | - D. D. Wang
- School of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471023
- China
| | - J. Ni
- School of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471023
- China
| | - S. F. Zhang
- School of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471023
- China
| | - X. J. Jin
- School of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471023
- China
| | - S. J. Lv
- School of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471023
- China
| | - Z. W. Wang
- School of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471023
- China
- National Laboratory of Solid State Microstructures
| | - J. F. Lei
- School of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471023
- China
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18
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Jeong H, Song H, Lee R, Pak Y, Kumaresan Y, Lee H, Jung GY. Orientation-Controllable ZnO Nanorod Array Using Imprinting Method for Maximum Light Utilization in Dye-Sensitized Solar Cells. NANOSCALE RESEARCH LETTERS 2015; 10:961. [PMID: 26068077 PMCID: PMC4472652 DOI: 10.1186/s11671-015-0961-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 05/28/2015] [Indexed: 06/02/2023]
Abstract
We present a holey titanium dioxide (TiO2) film combined with a periodically aligned ZnO nanorod layer (ZNL) for maximum light utilization in dye-sensitized solar cells (DSCs). Both the holey TiO2 film and the ZNL were simultaneously fabricated by imprint technique with a mold having vertically aligned ZnO nanorod (NR) array, which was transferred to the TiO2 film after imprinting. The orientation of the transferred ZNL such as laid, tilted, and standing ZnO NRs was dependent on the pitch and height of the ZnO NRs of the mold. The photoanode composed of the holey TiO2 film with the ZNL synergistically utilized the sunlight due to enhanced light scattering and absorption. The best power conversion efficiency of 8.5 % was achieved from the DSC with the standing ZNL, which represented a 33 % improvement compared to the reference cell with a planar TiO2.
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Affiliation(s)
- Huisu Jeong
- />School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 500-712 Republic of Korea
| | - Hui Song
- />School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 500-712 Republic of Korea
| | - Ryeri Lee
- />School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 500-712 Republic of Korea
| | - Yusin Pak
- />School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 500-712 Republic of Korea
| | - Yogeenth Kumaresan
- />School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 500-712 Republic of Korea
| | - Heon Lee
- />Department of Materials Science and Engineering, Korea University, Seoul, 136-701 Republic of Korea
| | - Gun Young Jung
- />School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 500-712 Republic of Korea
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Zheng D, Ye M, Wen X, Zhang N, Lin C. Electrochemical methods for the characterization and interfacial study of dye-sensitized solar cell. Sci Bull (Beijing) 2015. [DOI: 10.1007/s11434-015-0769-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Wu L, Qiu Y, Xi M, Li X, Cen C. Fabrication of TiO2nanotubes-assembled hierarchical microspheres with enhanced photocatalytic degradation activity. NEW J CHEM 2015. [DOI: 10.1039/c5nj00373c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
TiO2nanotubes-assembled hierarchical microspheres with larger surface area and good light-harvesting capacity exhibit much higher photocatalytic degradation activity.
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Affiliation(s)
- Liangpeng Wu
- Guangzhou Institute of Energy Conversion
- Chinese Academy of Sciences
- Guangzhou 510640
- P.R. China
| | - Yong Qiu
- Guangzhou Institute of Energy Conversion
- Chinese Academy of Sciences
- Guangzhou 510640
- P.R. China
- University of Chinese Academy of Sciences
| | - Min Xi
- Guangzhou Institute of Energy Conversion
- Chinese Academy of Sciences
- Guangzhou 510640
- P.R. China
| | - Xinjun Li
- Guangzhou Institute of Energy Conversion
- Chinese Academy of Sciences
- Guangzhou 510640
- P.R. China
| | - Chaoping Cen
- South China Institute of Environmental Science
- Ministry of Environmental Protection
- Guangzhou 510655
- P.R. China
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21
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Meng K, Thampi KR. Efficient quasisolid dye- and quantum-dot-sensitized solar cells using thiolate/disulfide redox couple and CoS counter electrode. ACS APPLIED MATERIALS & INTERFACES 2014; 6:20768-20775. [PMID: 25380236 DOI: 10.1021/am504958f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
For the first time, a quasisolid thiolate/disulfide-based electrolyte was prepared using succinonitrile as a matrix. An optimized configuration of the quasisolid electrolyte contains 5-mercapto-1-methyltetrazole N-tetramethylammonium/disulfide/LiClO4/N-methylbenzimidazole in the molar ratio of 0.8:0.8:0.1:0.1. Dye-sensitized solar cells fabricated using this quasisolid electrolyte, together with N719 dye-sensitized photoelectrode and CoS counter electrode, attained power conversion efficiencies of 4.25% at 1 sun and 6.19% at 0.1 sun illumination intensities. The optimized quasisolid electrolyte, when introduced to quasisolid CdS quantum-dot-sensitized solar cells, exhibited a power conversion efficiency of 0.94%, despite the fact that CdS absorbs only a small fraction of the visible light, unlike dyes. The encouraging results show the potential for the utilization of the quasisolid thiolate/disulfide-based electrolyte in sensitized solar cells.
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Affiliation(s)
- Ke Meng
- School of Chemical and Bioprocess Engineering, University College Dublin , Belfield, Dublin 4, Ireland
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22
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Peng G, Xu X, Mei F, Xu G, Wu J, Gao D, Ellis JE, Zhao Y, Xing Y, Star A. Substrate placement angle-dependent growth of dandelion-like TiO2nanorods for solid-state semiconductor-sensitized solar cells. RSC Adv 2014. [DOI: 10.1039/c4ra10611c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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23
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Nithiyanantham U, Ramadoss A, Ede SR, Kundu S. DNA mediated wire-like clusters of self-assembled TiO₂ nanomaterials: supercapacitor and dye sensitized solar cell applications. NANOSCALE 2014; 6:8010-8023. [PMID: 24905088 DOI: 10.1039/c4nr01836b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A new route for the formation of wire-like clusters of TiO₂ nanomaterials self-assembled in DNA scaffold within an hour of reaction time is reported. TiO₂ nanomaterials are synthesized by the reaction of titanium-isopropoxide with ethanol and water in the presence of DNA under continuous stirring and heating at 60 °C. The individual size of the TiO₂ NPs self-assembled in DNA and the diameter of the wires can be tuned by controlling the DNA to Ti-salt molar ratios and other reaction parameters. The eventual diameter of the individual particles varies between 15 ± 5 nm ranges, whereas the length of the nanowires varies in the 2-3 μm range. The synthesized wire-like DNA-TiO₂ nanomaterials are excellent materials for electrochemical supercapacitor and DSSC applications. From the electrochemical supercapacitor experiment, it was found that the TiO₂ nanomaterials showed different specific capacitance (Cs) values for the various nanowires, and the order of Cs values are as follows: wire-like clusters (small size) > wire-like clusters (large size). The highest Cs of 2.69 F g(-1) was observed for TiO₂ having wire-like structure with small sizes. The study of the long term cycling stability of wire-like clusters (small size) electrode were shown to be stable, retaining ca. 80% of the initial specific capacitance, even after 5000 cycles. The potentiality of the DNA-TiO₂ nanomaterials was also tested in photo-voltaic applications and the observed efficiency was found higher in the case of wire-like TiO₂ nanostructures with larger sizes compared to smaller sizes. In future, the described method can be extended for the synthesis of other oxide based materials on DNA scaffold and can be further used in other applications like sensors, Li-ion battery materials or treatment for environmental waste water.
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Affiliation(s)
- U Nithiyanantham
- Electrochemical Materials Science (ECMS) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi-630006, Tamil Nadu, India.
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Zanoni KPS, Amaral RC, Murakami Iha NY. All-nano-TiO2 compact film for high-performance dye-sensitized solar cells. ACS APPLIED MATERIALS & INTERFACES 2014; 6:10421-10428. [PMID: 24896501 DOI: 10.1021/am501955f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An innovative all-nano-TiO2 thin film capable of enhancing dye-sensitized solar cell (DSC) photoefficiencies was prepared by a layer-by-layer method beneath the meso-TiO2 film, employing acid and basic nano-TiO2 sols as cations and anions, respectively. TiO2 syntheses were performed under absolute control to lead to appropriate morphological and optical properties to yield high-quality compact films using profilometry, tuning, and scanning electron microscopy. A detailed study by photoelectrochemical parameters, incident photon-to-current efficiency, electron lifetime, and electrochemical impedance spectroscopy demonstrates that the physical contact between FTO and the electrolyte is prevented and the role of the compact film has been elucidated. DSCs with TiO2 bilayers on top of FTO improved the conversion efficiency up to 62%, mainly because of the prevention of FTO/I3(-) charge recombination and an improved contact between FTO and TiO2.
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Affiliation(s)
- Kassio P S Zanoni
- Laboratory of Photochemistry and Energy Conversion, Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo-USP , Av. Prof. Lineu Prestes, 748, 05508-000 São Paulo, SP, Brazil
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