1
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Chang JJ, Yuan B, Mignuzzi S, Sapienza R, Mezzadri F, Cademartiri L. Colloidal TiO 2 nanocrystals with engineered defectivity and optical properties. NANOSCALE HORIZONS 2024; 9:1568-1573. [PMID: 39023125 DOI: 10.1039/d4nh00143e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Partially reduced forms of titanium dioxide (sometimes called "black" titania) have attracted widespread interest as promising photocatalysts of oxidation due to their absorption in the visible region. The main approaches to produce it rely on postprocessing at high temperatures (up to 800 °C) and high pressures (up to 40 bar) or on highly reactive precursors (e.g., TiH2), and yield powders with poorly controlled sizes, shapes, defect concentrations and distributions. We describe an approach for the one-step synthesis of TiO2 colloidal nanocrystals at atmospheric pressure and temperatures as low as 280 °C. The temperature of the reaction allows the density of oxygen vacancies to be controlled by nearly two orders of magnitude independently of their size, shape, or colloidal stability. This synthetic pathway appears to produce vacancies that are homogeneously distributed in the nanocrystals, rather than being concentrated in an amorphous shell. As a result, the defects are protected from oxidation and result in stable optical properties in oxidizing environments.
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Affiliation(s)
- Julia J Chang
- Department of Materials Science & Engineering, Iowa State University of Science and Technology, 2220 Hoover Hall, Ames, IA, 50011, USA
| | - Bin Yuan
- Department of Chemical & Biological Engineering, Iowa State University of Science and Technology, Gilman Hall, Ames, IA, 50011, USA
| | - Sandro Mignuzzi
- The Blackett Laboratory, Department of Physics, Imperial College London, London, SW7 2AZ, UK
| | - Riccardo Sapienza
- The Blackett Laboratory, Department of Physics, Imperial College London, London, SW7 2AZ, UK
| | - Francesco Mezzadri
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, 43124, Italy.
| | - Ludovico Cademartiri
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, 43124, Italy.
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2
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Jamil S, Jabeen N, Sajid F, Khan LU, Kanwal A, Sohail M, Zaheer M, Akhter Z. Visible light driven (VLD) reduced TiO 2-x nanocatalysts designed by inorganic and organic reducing agent-mediated solvothermal methods for electrocatalytic and photocatalytic applications. RSC Adv 2024; 14:24092-24104. [PMID: 39091372 PMCID: PMC11292792 DOI: 10.1039/d4ra03402c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Accepted: 07/11/2024] [Indexed: 08/04/2024] Open
Abstract
This work presents a comparative study on the structural, optical and electrochemical characteristics of visible light driven (VLD) reduced titanium dioxide (TiO2-x ) nanocatalysts synthesized via inorganic and organic synthetic routes. X-ray diffraction (XRD) patterns, Raman spectra and X-ray absorption fine structure (XAFS) analyses reflected anatase phase titania. Whereas, the quantitative EXAFS fit and XANES analysis revealed structural distortion due to the presence of oxygen and titanium vacancies with low valent Ti states in anatase lattices of certain nanocatalysts, which subsequently leads to better electrochemical and photocatalytic activities. Moreover, owing to the large surface area and mesoporous structures, the Mg-TiO2-x nanocatalysts exhibited enhanced water adsorption and ultimately increased overall water splitting with an OER overpotential equal to 420 mV vs. RHE at a current density of 10 mA cm-2 (Tafel slope = 62 mV dec-1), extended visible light absorbance, decreased photoluminescence (PL) intensity and increased carrier lifetime in comparison with commercial titania.
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Affiliation(s)
- Sadaf Jamil
- Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan
| | - Naila Jabeen
- Nanosciences and Technology Division, National Centre for Physics QAU Campus, Shahdra Valley Road, P.O. Box 2141 Islamabad-44000 Pakistan
| | - Fatima Sajid
- Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan
| | - Latif U Khan
- Synchrotron-light for Experimental Science and Applications in the Middle East (SESAME) P.O. Box 7 Allan 19252 Jordan
| | - Afia Kanwal
- Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan
| | - Manzar Sohail
- School of Natural Sciences, National University of Sciences and Technology (NUST) H-12 Islamabad Pakistan
| | - Muhammad Zaheer
- Lahore University of Management Sciences DHA Lahore Cantt 54792 Pakistan
| | - Zareen Akhter
- Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan
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3
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Chen X, Sheng X, Zhou H, Liu Z, Xu M, Feng X. Hydrophobicity Promoted Efficient Hydroxyl Radical Generation in Visible-Light-Driven Photocatalytic Oxidation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310128. [PMID: 38174635 DOI: 10.1002/smll.202310128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/19/2023] [Indexed: 01/05/2024]
Abstract
Hydroxyl radical (•OH) with strong oxidation capability is one of the most important reactive oxygen species. The generation of •OH from superoxide radicals (•O2 -) is an important process in visible-light-driven photocatalysis, but the conversion generally suffers from slow reaction kinetics. Here, a hydrophobicity promoted efficient •OH generation in a visible-light-driven semiconductor-mediated photodegradation reaction is reported. Hydrophobic TiO2 that is synthesized by modifying the TiO2 surface with a thin polydimethylsiloxane (PDMS) layer and rhodamine B (RhB) are used as model semiconductors and dye molecules, respectively. The surface hydrophobicity resulted in the formation of a solid-liquid-air triphase interface microenvironment, which increased the local concentration of O2. In the meanwhile, the saturated adsorption quantity of RhB on hydrophobic TiO2 is improved by five-fold than that on untreated TiO2. These advantages increased the density of the conduction band photoelectrons and •O2 - generation, and stimulated the conversion of •O2 - to •OH. This consequently not only increased the kinetics of the photocatalytic reaction by an order of magnitude, but also altered the oxidation route from conventional decolorization to mineralization. This study highlights the importance of surface wettability modulation in boosting •OH generation in visible-light-driven photocatalysis.
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Affiliation(s)
- Xi Chen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Xia Sheng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Hang Zhou
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Zhiping Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Minmin Xu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Xinjian Feng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
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4
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Chen S, Hu YH. Color TiO 2 Materials as Emerging Catalysts for Visible-NIR Light Photocatalysis, A Review. CATALYSIS REVIEWS 2023. [DOI: 10.1080/01614940.2023.2169451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Shaoqin Chen
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan, USA
| | - Yun Hang Hu
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan, USA
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5
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C-TiO2+Ni and ZnO+Ni Magnetic Photocatalyst Powder Synthesis by Reactive Magnetron Sputtering Technique and Their Application for Bacteria Inactivation. INORGANICS 2023. [DOI: 10.3390/inorganics11020059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
In the current study, a bi-layered magnetic photocatalyst powder consisting of a Ni layer on one side and carbon-doped TiO2 or ZnO photocatalyst layers on the other side was synthesized by magnetron sputtering technique. SEM, XRD, and XPS analysis of powders revealed that the photocatalytic TiO2 layer had a mixed anatase-rutile structure, was doped by carbon to approximately 3 at. % and had a fraction of Ti(III) oxide. Meanwhile, the ZnO layer was crystalized in a wurtzite structure and had a considerable number of intrinsic defects, which are useful for visible light photocatalysis. The activity of magnetic photocatalyst powder was tested by photocatalytic bleaching of dyes, as well as performing photocatalytic inactivation of Salmonella bacteria under UV and visible light irradiation. It was observed, that C-TiO2+Ni magnetic photocatalyst had relatively high and stable activity under both light sources (for five consecutive cycles dye degradation reached approximately 95%), but ZnO+Ni was generally lacking in activity and stability (over five cycles under UV and visible light, dye degradation fell from approximately 60% to 55% and from 90% to 70%, respectively). Photocatalytic treatment of bacteria also provided mixed results. On one hand, in all tests bacteria were not inactivated completely. However, on the other hand, their susceptibility to antibiotics increased significantly.
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Zakaria H, Li Y, Fathy MM, Zhou X, Xiong X, Wang Y, Rong S, Zhang C. A novel TiO 2-x/TiN@ACB composite for synchronous photocatalytic Cr(VI) reduction and water photothermal evaporation under visible/infrared light illumination. CHEMOSPHERE 2023; 311:137137. [PMID: 36351469 DOI: 10.1016/j.chemosphere.2022.137137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/17/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
Relatively large band-gap, fast charge carriers recombination, and mono-functionality of photocatalytic materials are still representing stumbling hurdles against their optimal usage for water cleaning. Herein, a novel black titanium oxide/plasmonic titanium nitride@activated coconut biochar (TiO2-x/TiN@ACB) composite was designed to have both photocatalytic and photothermal functions. Intermediate states of black TiO2-x, plasmonic effect of TiN, and high electrons (e-) capacity of biochar enhanced band-gap narrowing, light absorbance extension, and charge carriers separation respectively. Black TiO2-x and plasmonic TiN sensitization via visible/infrared (Vis/IR) portion of photonic spectrum in addition to the confirmed close contact of composite constituents explained the demonstrated major role of e- in photocatalytic mechanism through efficient excitation and facile transfer. Thanks to black photocatalytic semiconductor and carbonic materials for their ultimate photons harnessing and efficient photothermal conversion where the composite exhibited a remarkable photothermal water evaporation upon Vis/IR illumination as well. TiO2-x/TiN@ACB composite revealed 92.8 and 89.7% photocatalytic reduction of hexavalent chromium (Cr(VI)) and water evaporation efficiencies up to 92.9 and 51.1% upon IR and Vis light illumination respectively. This study proposes a new approach for efficient water cleaning by coupling of oxygen deficient and plasmonic semiconductors supported on naturally derived carbonic material as a broad spectrum harvester and bi-functional photocatalytic and photothermal material.
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Affiliation(s)
- Hossam Zakaria
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, PR China; The Egyptian Chinese University (ECU), Cairo, Egypt
| | - Yi Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, PR China.
| | - Mohamed M Fathy
- Department of Biophysics, Faculty of Science, Cairo University, Giza, Egypt
| | - Xinyi Zhou
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Xinyan Xiong
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Ye Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Shengxiang Rong
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Chi Zhang
- College of Mechanics and Materials, Hohai University, Xikang Road #1, Nanjing, 210098, PR China.
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7
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Fawzi T, Rani S, Roy SC, Lee H. Photocatalytic Carbon Dioxide Conversion by Structurally and Materially Modified Titanium Dioxide Nanostructures. Int J Mol Sci 2022; 23:ijms23158143. [PMID: 35897719 PMCID: PMC9330242 DOI: 10.3390/ijms23158143] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/21/2022] [Accepted: 07/22/2022] [Indexed: 12/18/2022] Open
Abstract
TiO2 has aroused considerable attentions as a promising photocatalytic material for decades due to its superior material properties in several fields such as energy and environment. However, the main dilemmas are its wide bandgap (3–3.2 eV), that restricts the light absorption in limited light wavelength region, and the comparatively high charge carrier recombination rate of TiO2, is a hurdle for efficient photocatalytic CO2 conversion. To tackle these problems, lots of researches have been implemented relating to structural and material modification to improve their material, optical, and electrical properties for more efficient photocatalytic CO2 conversion. Recent studies illustrate that crystal facet engineering could broaden the performance of the photocatalysts. As same as for nanostructures which have advantages such as improved light absorption, high surface area, directional charge transport, and efficient charge separation. Moreover, strategies such as doping, junction formation, and hydrogenation have resulted in a promoted photocatalytic performance. Such strategies can markedly change the electronic structure that lies behind the enhancement of the solar spectrum harnessing. In this review, we summarize the works that have been carried out for the enhancement of photocatalytic CO2 conversion by material and structural modification of TiO2 and TiO2-based photocatalytic system. Moreover, we discuss several strategies for synthesis and design of TiO2 photocatalysts for efficient CO2 conversion by nanostructure, structure design of photocatalysts, and material modification.
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Affiliation(s)
- Tarek Fawzi
- Department of Photonics, National Sun Yat-sen University, No. 70, Lien-Hai Rd, Kaohsiung 80424, Taiwan; or
| | - Sanju Rani
- Department of Physics, SRM Institute of Science and Technology, Ramapuram Campus, Chennai 600089, Tamil Nadu, India;
| | - Somnath C. Roy
- Semiconducting Oxide Materials, Nanostructures and Tailored Heterojunction (SOMNaTH) Lab, Functional Oxides Research Group (FORG) and 2D Materials and Innovation Centre, Department of Physics, IIT Madras, Chennai 600036, Tamil Nadu, India;
| | - Hyeonseok Lee
- Department of Photonics, National Sun Yat-sen University, No. 70, Lien-Hai Rd, Kaohsiung 80424, Taiwan; or
- Correspondence: ; Tel.: +886-7-525-2000 (ext. 4473)
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8
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Manjunath K, Saraswat A, Samrat D, Rao CNR. Atomic layer deposited Ti2O3 thin films. Chemphyschem 2022; 23:e202100910. [PMID: 35332645 DOI: 10.1002/cphc.202100910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 03/22/2022] [Indexed: 11/09/2022]
Abstract
Ti2O3 thin films have been prepared through atomic layer deposition and subjected to electrical resistivity measurements as a function of temperature. The as-prepared films were stable for up to three weeks. In Ti2O3 thin films, the insulator-metal transition is observed at ~80 K, with nearly 3-4 orders of magnitude change in resistivity. The anomalous increase in electrical resistivity in the films is in accordance with the two-band model. However, the energy interval between the bands depends on the crystallographic c/a ratio leads to a change in electrical resistivity against temperature.
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Affiliation(s)
- K Manjunath
- Jawaharlal Nehru Centre for Advanced Scientific Research, International center for materials Science, New Chemistry Unit, School of Advanced Materials, Jakkur P.O., Bengaluru, 560064, Bengaluru, INDIA
| | - A Saraswat
- Jawaharlal Nehru Centre for Advanced Scientific Research, International Centre for materials Science, New Chemistry Unit, School of Advanced materials, Jakkur P.O., JNCASR, Bengaluru, 560064, Bengaluru, INDIA
| | - D Samrat
- Jawaharlal Nehru Centre for Advanced Scientific Research, International Centre for Materials Science, New Chemistry Unit, School of Advanced Materials, Jakkur P.O., JNCASR, Bengaluru, 560064, Bengaluru, INDIA
| | - C N R Rao
- Jawaharlal Nehru Centre for Advanced Scientific Research, New Chemistry Unit, Jakkur P.O, 560064, Bangalore, INDIA
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9
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Díaz-Sánchez M, Delgado-Álvarez PN, Gómez IJ, Díaz-García D, Prashar S, Gómez-Ruiz S. Modulation of the photocatalytic activity and crystallinity of F-TiO 2 nanoparticles by using green natural carboxylic acids. CrystEngComm 2022. [DOI: 10.1039/d2ce00699e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ultrareactive F-doped mesoporous TiO2 nanoparticles with potential environmental applications have been synthesized using green natural carboxylic acids.
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Affiliation(s)
- Miguel Díaz-Sánchez
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, E.S.C.E.T, Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
| | - Paula N. Delgado-Álvarez
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, E.S.C.E.T, Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
| | - I. Jénnifer Gómez
- Department of Condensed Matter Physics, Faculty of Science, Masaryk University, 61137 Brno, Czech Republic
| | - Diana Díaz-García
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, E.S.C.E.T, Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
| | - Sanjiv Prashar
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, E.S.C.E.T, Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
| | - Santiago Gómez-Ruiz
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, E.S.C.E.T, Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
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10
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Sahoo SS, Mansingh S, Babu P, Parida K. Black titania an emerging photocatalyst: review highlighting the synthesis techniques and photocatalytic activity for hydrogen generation. NANOSCALE ADVANCES 2021; 3:5487-5524. [PMID: 36133264 PMCID: PMC9419872 DOI: 10.1039/d1na00477h] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 08/12/2021] [Indexed: 05/19/2023]
Abstract
The TiO2 semiconductor photocatalyst is in the limelight of sustainable energy research in recent years because of its beneficial properties. However, its wide band-gap and rapid exciton recombination rate makes it a lame horse, and reduces its photocatalytic efficiency. Recently, researchers have developed facile methods for lowering the band-gap, so that it captures a wide range of solar spectrum, but the efficiency is still way behind the target value. After the discovery of black titania (B-TiO2), the associated drawbacks of white TiO2 and its modified forms were addressed to a large extent because it not only absorbs photons in a broad spectral range (UV to IR region), but also modifies the structural and morphological features, along with the electronic properties of the material, significantly boosting the catalytic performance. Hence, B-TiO2 effectively converts solar energy into renewable chemical energy i.e. green fuel H2 that can ultimately satisfy the energy crisis and environmental pollution. However, the synthesis techniques involved are quite tedious and challenging. Hence, this review summarizes various preparation methods of B-TiO2 and the involved characterization techniques. It also discusses the different modification strategies adopted to improve the H2 evolution activity, and hopes that this review acts as a guiding tool for researchers working in this field.
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Affiliation(s)
- Suman Sekhar Sahoo
- Centre for Nanoscience and Nanotechnology, Siksha O Anusandhan (Deemed to be University) Bhubaneswar-751030 Odisha India
| | - Sriram Mansingh
- Centre for Nanoscience and Nanotechnology, Siksha O Anusandhan (Deemed to be University) Bhubaneswar-751030 Odisha India
| | - Pradeepta Babu
- Centre for Nanoscience and Nanotechnology, Siksha O Anusandhan (Deemed to be University) Bhubaneswar-751030 Odisha India
| | - Kulamani Parida
- Centre for Nanoscience and Nanotechnology, Siksha O Anusandhan (Deemed to be University) Bhubaneswar-751030 Odisha India
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11
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Abstract
Pristine and modified/doped titania are still some of the most widely investigated photocatalysts due to its high activity, stability, abundance and proper redox properties to carry out various reactions. However, modifiers and/or dopants resulting in visible-light activity might be expensive or work as recombination centers under UV irradiation. It seems that defective titania, known as “self-doped” TiO2, might be the best solution since it can be obtained under mild conditions without the addition of expensive materials and methods. This review discusses various methods of defective titania preparation, characterization of defect types, their localization (surface vs. bulk) and their function, as well as proposed mechanisms of photocatalytic reactions in the presence of self-doped titania. Although many kinds of defective titania samples have already been prepared with different colors, color intensities and defect kinds (mainly Ti3+ and oxygen vacancies), it is difficult to conclude which of them are the most recommended as the preparation conditions and activity testing used by authors differ. Furthermore, activity testing under solar radiation and for dyes does not clarify the mechanism since bare titania can also be excited and sensitized, respectively, in these conditions. In many reports, authors have not considered the possible influence of some impurities originated from the synthesis method (e.g., H, Al, Zn, Cl, F) that could co-participate in the overall mechanism of photocatalytic reactions. Moreover, some reports indicate that defective titania, especially black ones, might decrease activity since the defects might work as recombination centers. Despite some unproven/unclear findings and unanswered questions, there are many well-conducted studies confirmed by both experimental and theoretical studies that defective titania might be a promising material for various photocatalytic reactions under both UV and visible-light irradiation. Based on available literature, it could be proposed that optimal defects’ concentration, the preferential role of surface defects, a higher surface-to-bulk ratio of defects in rutile than in anatase, and the beneficial impact of disordered surface are the most important aspects to be considered during the preparation of defective titania.
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12
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Wang B, Biesold GM, Zhang M, Lin Z. Amorphous inorganic semiconductors for the development of solar cell, photoelectrocatalytic and photocatalytic applications. Chem Soc Rev 2021; 50:6914-6949. [PMID: 33904560 DOI: 10.1039/d0cs01134g] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Amorphous inorganic semiconductors have attracted growing interest due to their unique electrical and optical properties that arise from their intrinsic disordered structure and thermodynamic metastability. Recently, amorphous inorganic semiconductors have been applied in a variety of new technologies, including solar cells, photoelectrocatalysis, and photocatalysis. It has been reported that amorphous phases can improve both efficiency and stability in these applications. While these phenomena are well established, their mechanisms have long remained unclear. This review first introduces the general background of amorphous inorganic semiconductor properties and synthesis. Then, the recent successes and current challenges of amorphous inorganic semiconductor-based materials for applications in solar cells, photoelectrocatalysis, and photocatalysis are addressed. In particular, we discuss the mechanisms behind the remarkable performances of amorphous inorganic semiconductors in these fields. Finally, we provide insightful perspectives into further developments for applications of amorphous inorganic semiconductors.
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Affiliation(s)
- Bing Wang
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
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13
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Hou J, Xu T, Ning Y, Huang B, Yang Y, Wang Q. Solvothermal preparation of Ti 3+ self-doped TiO 2-x nanotube arrays for enhanced photoelectrochemical performance. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 244:118896. [PMID: 32919156 DOI: 10.1016/j.saa.2020.118896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/23/2020] [Accepted: 08/25/2020] [Indexed: 06/11/2023]
Abstract
Ti3+ self-doped TiO2-x nanotube arrays (TiO2-x NTs) were prepared by solvothermal treatment in KBH4 ethanol solution followed by calcination, and were characterized by field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and UV-vis diffusion reflection spectroscopy (DRS). The photoelectrochemical properties of TiO2-x NTs prepared in different KBH4 concentrations were investigated. The TiO2-x NTs exhibited high visible light response, visible light photocurrent and photoelectrocatalytic activities. The active species and photocatalytic mechanism for the dye degradation were proposed, and the improved photoelectrochemical performance was attributed to the synergistic effect of the narrowed energy gap and enhanced electron transportation. The ability to improve the photoelectrochemical properties of TiO2-x electrode materials should open up new opportunities for high-performance solar cells and photocatalysts.
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Affiliation(s)
- Junwei Hou
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China.
| | - Tengze Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Yanbin Ning
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Bingxuan Huang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Ye Yang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Qingyao Wang
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
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14
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Wang J, Lin W, Zhou S, Li Z, Hu H, Tao Y, Zhou S, Zhao X, Kong Y. Probing the formation and optical properties of Ti 3+–TiO 2 with (001) exposed crystal facet by ethanol-assisted fluorination. NEW J CHEM 2021. [DOI: 10.1039/d1nj01591e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
(001)-faceted TiO2 with Ti3+ defects that are exclusively embedded in the bulk lattice near the surface was synthesized.
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Affiliation(s)
- Jian Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Wei Lin
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Shulan Zhou
- Department of Material Science and Engineering
- Jingdezhen Ceramic Institute
- Jingdezhen 333403
- P. R. China
| | - Zheng Li
- Max-Planck Institute for the Structure and Dynamics of Matter
- D-22761 Hamburg
- Germany
| | - Hao Hu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Yinglong Tao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Shijian Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Xian Zhao
- State Key Laboratory of Crystal Material
- Institute of Crystal Material
- Shandong University
- Jinan 250100
- P. R. China
| | - Yan Kong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
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15
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Effects of the amount of Au nanoparticles on the visible light response of TiO2 photocatalysts. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.12.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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16
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Liu Y, Chen P, Fan Y, Fan Y, Shi X, Cui G, Tang B. Grey Rutile TiO 2 with Long-Term Photocatalytic Activity Synthesized Via Two-Step Calcination. NANOMATERIALS 2020; 10:nano10050920. [PMID: 32397483 PMCID: PMC7279311 DOI: 10.3390/nano10050920] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 05/02/2020] [Accepted: 05/05/2020] [Indexed: 11/22/2022]
Abstract
Colored titanium oxides are usually unstable in the atmosphere. Herein, a gray rutile titanium dioxide is synthesized by two-step calcination successively in a high-temperature reduction atmosphere and in a lower-temperature air atmosphere. The as-synthesized gray rutile TiO2 exhibits higher photocatalytic activity than that of white rutile TiO2 and shows high chemical stability. This is attributed to interior oxygen vacancies, which can improve the separation and transmission efficiency of the photogenerated carriers. Most notably, a formed surface passivation layer will protect the interior oxygen vacancies and provide long-term photocatalytic activity.
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Affiliation(s)
| | | | | | | | | | - Guanwei Cui
- Correspondence: (G.C.); (B.T.); Tel.: +86-135-8906-3951 (G.C.)
| | - Bo Tang
- Correspondence: (G.C.); (B.T.); Tel.: +86-135-8906-3951 (G.C.)
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17
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Zhao D, Xu B, Yang J, Wu J, Zhai W, Yang B, Liu M. Rapid Preparation of TiO 2-x and Its Photocatalytic Oxidation for Arsenic Adsorption under Visible Light. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:3853-3861. [PMID: 32200636 DOI: 10.1021/acs.langmuir.9b02444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A rapid preparation method of TiO2-x by thermal treatment using H2TiO3 as the precursor was proposed compared with the static hydrogenation thermal treatment process. Its adsorption properties of arsenic under visible light were explored and investigated as well. Various colors of TiO2-x were prepared and characterized via XRD, TEM, BET, and so on. The results indicate that the method of rapid preparation is feasible. The TiO2-x exhibits a larger particle size that varied from 10 nm to 2 μm, and deeper color products were obtained as the treatment temperature increased from 600 to 900 °C. Light yellow TiO2-x was prepared after increasing the temperature from 600 to 900 °C, Ti4O7 and Ti6O11 with a dark color were formed under a H2 atmosphere at 1500 °C. The arsenic adsorption performances of some samples under visible light were tested, and reveal a high efficiency of TiO2-x in the photocatalytic oxidation arsenic adsorption under visible light, the conversion ratio of As(III) photocatalytic oxidation fluctuates around 2.85 mgAsg-1 h-1. In the absence of visible light, the adsorption capacities for As(III) and As(V) are 3.7 and 42.7 mg/g, respectively, at pH = 3. Under visible light condition, the adsorption capacity of As(III) increases sharply to 15.6 mg/g, which provides the foundation for a new application of TiO2-x in the field of arsenic adsorption.
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Affiliation(s)
- Ding Zhao
- State Key Laboratory of Complex Nonferrous Metal Resources Clear Utilization, 253 Xuefu Road, Kunming 650093, P. R. China
- Yunnan Provincial Key Laboratory for Nonferrous Vacuum Metallurgy, 253 Xuefu Road, Kunming 650093, P. R. China
- National Engineering Laboratory for Vacuum Metallurgy, 253 Xuefu Road, Kunming 650093, P. R. China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, 253 Xuefu Road, Kunming 650093, P. R. China
| | - Baoqiang Xu
- State Key Laboratory of Complex Nonferrous Metal Resources Clear Utilization, 253 Xuefu Road, Kunming 650093, P. R. China
- Yunnan Provincial Key Laboratory for Nonferrous Vacuum Metallurgy, 253 Xuefu Road, Kunming 650093, P. R. China
- National Engineering Laboratory for Vacuum Metallurgy, 253 Xuefu Road, Kunming 650093, P. R. China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, 253 Xuefu Road, Kunming 650093, P. R. China
| | - Jia Yang
- State Key Laboratory of Complex Nonferrous Metal Resources Clear Utilization, 253 Xuefu Road, Kunming 650093, P. R. China
- Yunnan Provincial Key Laboratory for Nonferrous Vacuum Metallurgy, 253 Xuefu Road, Kunming 650093, P. R. China
- National Engineering Laboratory for Vacuum Metallurgy, 253 Xuefu Road, Kunming 650093, P. R. China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, 253 Xuefu Road, Kunming 650093, P. R. China
| | - Jian Wu
- Yunnan Provincial Key Laboratory for Nonferrous Vacuum Metallurgy, 253 Xuefu Road, Kunming 650093, P. R. China
- National Engineering Laboratory for Vacuum Metallurgy, 253 Xuefu Road, Kunming 650093, P. R. China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, 253 Xuefu Road, Kunming 650093, P. R. China
| | - Weiran Zhai
- Yunnan Provincial Key Laboratory for Nonferrous Vacuum Metallurgy, 253 Xuefu Road, Kunming 650093, P. R. China
- National Engineering Laboratory for Vacuum Metallurgy, 253 Xuefu Road, Kunming 650093, P. R. China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, 253 Xuefu Road, Kunming 650093, P. R. China
| | - Bin Yang
- State Key Laboratory of Complex Nonferrous Metal Resources Clear Utilization, 253 Xuefu Road, Kunming 650093, P. R. China
- Yunnan Provincial Key Laboratory for Nonferrous Vacuum Metallurgy, 253 Xuefu Road, Kunming 650093, P. R. China
- National Engineering Laboratory for Vacuum Metallurgy, 253 Xuefu Road, Kunming 650093, P. R. China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, 253 Xuefu Road, Kunming 650093, P. R. China
| | - Minghui Liu
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, 253 Xuefu Road, Kunming 650093, P. R. China
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18
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Su Z, Liu J, Li M, Zhu Y, Qian S, Weng M, Zheng J, Zhong Y, Pan F, Zhang S. Defect Engineering in Titanium-Based Oxides for Electrochemical Energy Storage Devices. ELECTROCHEM ENERGY R 2020. [DOI: 10.1007/s41918-020-00064-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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19
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Zhou H, Sheng X, Xiao J, Ding Z, Wang D, Zhang X, Liu J, Wu R, Feng X, Jiang L. Increasing the Efficiency of Photocatalytic Reactions via Surface Microenvironment Engineering. J Am Chem Soc 2020; 142:2738-2743. [DOI: 10.1021/jacs.9b12247] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hang Zhou
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xia Sheng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Jie Xiao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Zhenyao Ding
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Dandan Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xiqi Zhang
- Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Jian Liu
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou 215123, P. R. China
| | - Renfei Wu
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou 215123, P. R. China
| | - Xinjian Feng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Lei Jiang
- Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 101407, P. R. China
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20
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Colorful TiO2-x microspheres cooperating with titanium Schiff base complex for efficient visible light photocatalysts. Catal Today 2019. [DOI: 10.1016/j.cattod.2019.03.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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21
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Li G, Xie J, Wang J, Xia L, Li Y, Hu W. Nanoscale Surface Disorder for Enhanced Solar Absorption and Superior Visible-Light Photocatalytic Property in Ti-Rich BaTiO 3 Nanocrystals. ACS OMEGA 2019; 4:9673-9679. [PMID: 31460057 PMCID: PMC6648295 DOI: 10.1021/acsomega.9b00739] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 05/22/2019] [Indexed: 06/10/2023]
Abstract
Lattice disorder has emerged as a novel strategy to realize visible-light photocatalytic activity, but many existing studies often involved reduction states simultaneously. Photocatalysts based on only the lattice disorder but without the reduction states are still quite lacking and challenging. To this end, we explored a new type of lattice disorder in terms of the surface atom nonstoichiometry strategy in BaTiO3. Well-dispersed tetragonal BaTiO3 nanocrystals with a uniform size (∼20 nm) and cuboid morphology were hydrothermally synthesized through controlling over t-butylamine and oleic acid. HRTEM coupled with structural evolution analysis reveals the existence of a Ti-rich layer on BaTiO3 nanocrystals with surface atom disorder, which gives an overall Ti/Ba ratio of 1.50:1. This is mainly dominated by the oriented adsorption between oleic acid and surface Ba2+ of the nucleus during solution reaction. Such a surface disorder and Ti-rich nonstoichiometry effect could facilitate the enhanced visible-light absorption with a wavelength span of 400-700 nm that enables the superior visible-light photocatalytic property, which is not subject to the reduction states. This work demonstrates a first white material presenting a new type of lattice disorder that would be helpful for a wide range of photocatalyst explorations.
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22
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Lin J, Liu Y, Liu Y, Huang C, Liu W, Mi X, Fan D, Fan F, Lu H, Chen X. SnS 2 Nanosheets/H-TiO 2 Nanotube Arrays as a Type II Heterojunctioned Photoanode for Photoelectrochemical Water Splitting. CHEMSUSCHEM 2019; 12:961-967. [PMID: 30716210 DOI: 10.1002/cssc.201802691] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 12/23/2018] [Indexed: 06/09/2023]
Abstract
Improving the separation efficiency of photogenerated electron-hole pairs and the conductivity of electrons to photoanode substrates are critical to achieve high-performance photoelectrochemical (PEC) water splitting. Here, a SnS2 /H-TiO2 /Ti heterojunction photoanode was fabricated with SnS2 nanosheets vertically grown on hydrogen-treated TiO2 (H-TiO2 ) nanotube arrays on a Ti substrate. It showed a significantly enhanced photocurrent of 4.0 mA cm-2 at 1.4 V (vs. reversible hydrogen electrode) under AM 1.5 G illumination, 70 times higher than that of SnS2 /TiO2 /Ti. Kelvin probe force microscopy measurements indicated that photogenerated electrons could be easily transported through the SnS2 /H-TiO2 interface but not through the SnS2 /TiO2 interface. Through hydrogen treatment, defects were created in H-TiO2 nanotubes to convert type I junctions to type II with SnS2 nanosheets. As a result, a high efficiency of electron-hole separation at the SnS2 /H-TiO2 interface and a high electron conductivity in H-TiO2 nanotubes were achieved and improved PEC performance. These findings show an effective route towards high-performance photoelectrodes for water splitting.
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Affiliation(s)
- Jianfei Lin
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical, Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, P.R. China
| | - Yong Liu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian, 116023, P.R. China
| | - Yongping Liu
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical, Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, P.R. China
- Department of Chemistry, University of Missouri-Kansas City, Kansas City, Missouri, 64110, USA
| | - Chen Huang
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical, Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, P.R. China
| | - Wenhui Liu
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical, Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, P.R. China
| | - Xihong Mi
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical, Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, P.R. China
| | - Dayong Fan
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical, Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, P.R. China
| | - Fengtao Fan
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian, 116023, P.R. China
| | - Huidan Lu
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical, Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, P.R. China
- Department of Chemistry, University of Missouri-Kansas City, Kansas City, Missouri, 64110, USA
| | - Xiaobo Chen
- Department of Chemistry, University of Missouri-Kansas City, Kansas City, Missouri, 64110, USA
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23
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A Bi/BiOI/(BiO)2CO3 heterostructure for enhanced photocatalytic NO removal under visible light. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(18)63187-0] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Sarkar A, Khan GG. The formation and detection techniques of oxygen vacancies in titanium oxide-based nanostructures. NANOSCALE 2019; 11:3414-3444. [PMID: 30734804 DOI: 10.1039/c8nr09666j] [Citation(s) in RCA: 129] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
TiO2 and other titanium oxide-based nanomaterials have drawn immense attention from researchers in different scientific domains due to their fascinating multifunctional properties, relative abundance, environmental friendliness, and bio-compatibility. However, the physical and chemical properties of titanium oxide-based nanomaterials are found to be explicitly dependent on the presence of various crystal defects. Oxygen vacancies are the most common among them and have always been the subject of both theoretical and experimental research as they play a crucial role in tuning the inherent properties of titanium oxides. This review highlights different strategies for effectively introducing oxygen vacancies in titanium oxide-based nanomaterials, as well as a discussion on the positions of oxygen vacancies inside the TiO2 band gap based on theoretical calculations. Additionally, a detailed review of different experimental techniques that are extensively used for identifying oxygen vacancies in TiO2 nanostructures is also presented.
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Affiliation(s)
- Ayan Sarkar
- Centre for Research in Nanoscience and Nanotechnology, University of Calcutta, Block-JD2, Sector-III, Salt Lake, Kolkata 700106, West Bengal, India.
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25
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Highly Selective Photocatalytic Reduction of o-Dinitrobenzene to o-Phenylenediamine over Non-Metal-Doped TiO2 under Simulated Solar Light Irradiation. Catalysts 2018. [DOI: 10.3390/catal8120641] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Photocatalytic reduction and hydrogenation reaction of o-dinitrobenzene in the presence of oxalic acid over anatase-brookite biphasic TiO2 and non-metal-doped anatase-brookite biphasic TiO2 photocatalysts under solar simulated light was investigated. Compared with commercial P25 TiO2, the prepared un-doped and doped anatase-brookite biphasic TiO2 exhibited a high selectivity towards the formation of o-nitroaniline (85.5%) and o-phenylenediamine ~97%, respectively. The doped anatase-brookite biphasic TiO2 has promoted photocatalytic reduction of the two-nitro groups of o-dinitrobenzene to the corresponding o-phenylenediamine with very high yield ~97%. Electron paramagnetic resonance analysis, Transient Absorption Spectroscopy (TAS) and Photoluminescence analysis (PL) were performed to determine the distribution of defects and the fluorescence lifetime of the charge carriers for un-doped and doped photocatalysts. The superiority of the doped TiO2 photocatalysts is accredited to the creation of new dopants (C, N, and S) as hole traps, the formation of long-lived Ti3+ defects which leads to an increase in the fluorescence lifetime of the formed charge carriers. The schematic diagram of the photocatalytic reduction of o-dinitrobenzene using the doped TiO2 under solar light was also illustrated in detail.
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26
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Lee TY, Lee CY, Chiu HT. Enhanced Photocatalysis from Truncated Octahedral Bipyramids of Anatase TiO 2 with Exposed {001}/{101} Facets. ACS OMEGA 2018; 3:10225-10232. [PMID: 31459151 PMCID: PMC6644679 DOI: 10.1021/acsomega.8b01251] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 08/17/2018] [Indexed: 06/10/2023]
Abstract
In this study, we develop a new synthetic method to grow anatase TiO2 crystals composed of truncated octahedral bipyramids (TOBs) with exposed {001} and {101} facets by a vapor-solid reaction growth (VSRG) method. The VSRG method employs TiCl4(g) to react with CaO(s)/Ca(OH)2(s) at 823-1043 K under atmospheric pressure. The O-deficient pale-blue TOB TiO2 crystals display high amount of both {001} and {101} facets. Together, they decompose methylene blue photocatalytically under UV-visible (UV-vis) light irradiation. The most-efficient TOB catalyst VT923 (grown at 923 K, average edge length 400 nm, average thickness 200 nm, and surface area 4.20 m2/g) shows a degradation rate constant k, 0.0527 min-1. This is close to that of the P25 standard 0.0577 min-1. However, the surface area of P25 (46.8 m2/g) is about 12 times that of VT923. The extraordinary performance of VT923 is attributed to the presence of high amount of coexisting {001} and {101} facets to form effective surface heterojunctions. They would separate photogenerated electrons and holes effectively on {101} and {001} surfaces, respectively. For VT923, the {001}/{101} ratio is 0.764, which is close to 1, the highest value observed for all TOB samples grown in this study. The surface heterojunctions prolong the electron-hole separation so that VT923 demonstrates the excellent photocatalytic capability. In addition, residual Cl atoms on the exposed faces are easily removed to show clean TiO surface layers with sufficient amount of O-deficient sites in the current samples.
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Affiliation(s)
- Tzu-Yuan Lee
- Department
of Applied Chemistry, Nation Chiao Tung
University, Hsinchu, Taiwan 30010, ROC
| | - Chi-Young Lee
- Department
of Materials Science and Engineering, National
Tsing Hua University, Hsinchu, Taiwan 30013, ROC
| | - Hsin-Tien Chiu
- Department
of Applied Chemistry, Nation Chiao Tung
University, Hsinchu, Taiwan 30010, ROC
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27
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Ma Y, Wang N, Chen J, Chen C, San H, Chen J, Cheng Z. Betavoltaic Enhancement Using Defect-Engineered TiO 2 Nanotube Arrays through Electrochemical Reduction in Organic Electrolytes. ACS APPLIED MATERIALS & INTERFACES 2018; 10:22174-22181. [PMID: 29882646 DOI: 10.1021/acsami.8b05151] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Utilizing high-energy beta particles emitted from radioisotopes for long-lifetime betavoltaic cells is a great challenge due to low energy conversion efficiency. Here, we report a betavoltaic cell fabricated using TiO2 nanotube arrays (TNTAs) electrochemically reduced in ethylene glycol electrolyte (EGECR-TNTAs) for the enhancement of the betavoltaic effect. The electrochemical reduction of TNTAs using high cathodic bias in organic electrolytes is indeed a facile and effective strategy to induce in situ self-doping of oxygen vacancy (OV) and Ti3+ defects. The black EGECR-TNTAs are highly stable with a significantly narrower band gap and higher electrical conductivity as well as UV-vis-NIR light absorption. A 20 mCi of 63Ni betavoltaic cell based on the reduced TNTAs exhibits a maximum ECE of 3.79% with open-circuit voltage of 1.04 V, short-circuit current density of 117.5 nA cm-2, and a maximum power density of 39.2 nW cm-2. The betavoltaic enhancement can be attributed to the enhanced charge carrier transport and separation as well as multiple exciton generation of electron-hole pairs due the generation of OV and Ti3+ interstitial bands below the conductive band of TiO2.
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Affiliation(s)
- Yang Ma
- Pen-Tung Sah Institute of Micro-Nano Science and Technology , Xiamen University , Xiamen 361005 , China
- Shenzhen Research Institute of Xiamen University , Shenzhen 518000 , China
| | - Na Wang
- Pen-Tung Sah Institute of Micro-Nano Science and Technology , Xiamen University , Xiamen 361005 , China
- Shenzhen Research Institute of Xiamen University , Shenzhen 518000 , China
| | - Jiang Chen
- Pen-Tung Sah Institute of Micro-Nano Science and Technology , Xiamen University , Xiamen 361005 , China
- Shenzhen Research Institute of Xiamen University , Shenzhen 518000 , China
| | - Changsong Chen
- Pen-Tung Sah Institute of Micro-Nano Science and Technology , Xiamen University , Xiamen 361005 , China
- Shenzhen Research Institute of Xiamen University , Shenzhen 518000 , China
| | - Haisheng San
- Pen-Tung Sah Institute of Micro-Nano Science and Technology , Xiamen University , Xiamen 361005 , China
- Shenzhen Research Institute of Xiamen University , Shenzhen 518000 , China
- Shenzhen Betary Energy Technologies Co., Ltd. , Shenzhen 518063 , China
| | - Jige Chen
- Shenzhen Betary Energy Technologies Co., Ltd. , Shenzhen 518063 , China
| | - Zhengdong Cheng
- Shenzhen Betary Energy Technologies Co., Ltd. , Shenzhen 518063 , China
- Artie McFerrin Department of Chemical Engineering , Texas A&M University , College Station , Texas 77843-3122 , United States
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28
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Ozer LY, Apostoleris H, Ravaux F, Shylin SI, Mamedov F, Lindblad A, Johansson FOL, Chiesa M, Sá J, Palmisano G. Long-Lasting Non-hydrogenated Dark Titanium Dioxide: Medium Vacuum Anneal for Enhanced Visible Activity of Modified Multiphase Photocatalysts. ChemCatChem 2018. [DOI: 10.1002/cctc.201800097] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Lütfiye Y. Ozer
- Department of Chemical Engineering; Khalifa University of Science and Technology, Masdar Institute Masdar City; PO BOX 54224 Abu Dhabi United Arab Emirates
| | - Harry Apostoleris
- Department of Mechanical Engineering; Khalifa University of Science and Technology, Masdar Institute Masdar City; PO BOX 54224 Abu Dhabi United Arab Emirates
| | - Florent Ravaux
- Department of Mechanical Engineering; Khalifa University of Science and Technology, Masdar Institute Masdar City; PO BOX 54224 Abu Dhabi United Arab Emirates
| | - Sergii I. Shylin
- Department of Chemistry-Ånsgtröm Laboratory; Uppsala University; PO BOX 523 SE-751 20 Uppsala Sweden
| | - Fikret Mamedov
- Department of Chemistry-Ånsgtröm Laboratory; Uppsala University; PO BOX 523 SE-751 20 Uppsala Sweden
| | - Andreas Lindblad
- Division of Molecular and Condensed Matter Physics, Department of Physics and Astronomy; Uppsala University; PO BOX 516 SE-751 20 Uppsala Sweden
| | - Fredrik O. L. Johansson
- Division of Molecular and Condensed Matter Physics, Department of Physics and Astronomy; Uppsala University; PO BOX 516 SE-751 20 Uppsala Sweden
| | - Matteo Chiesa
- Department of Mechanical Engineering; Khalifa University of Science and Technology, Masdar Institute Masdar City; PO BOX 54224 Abu Dhabi United Arab Emirates
- Arctic Renewable Energy Center (ARC), Department of Physics and Technology; The Arctic University of Norway (UiT); Norway
| | - Jacinto Sá
- Department of Chemistry-Ånsgtröm Laboratory; Uppsala University; PO BOX 523 SE-751 20 Uppsala Sweden
- Institute of Physical Chemistry; Polish Academy of Sciences; Warsaw Poland
| | - Giovanni Palmisano
- Department of Chemical Engineering; Khalifa University of Science and Technology, Masdar Institute Masdar City; PO BOX 54224 Abu Dhabi United Arab Emirates
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29
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Liao J, Chen L, Sun M, Lei B, Zeng X, Sun Y, Dong F. Improving visible-light-driven photocatalytic NO oxidation over BiOBr nanoplates through tunable oxygen vacancies. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(18)63056-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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30
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Synthesis of Biphasic Defective TiO2–x/Reduced Graphene Oxide Nanocomposites with Highly Enhanced Photocatalytic Activity. Chem Res Chin Univ 2018. [DOI: 10.1007/s40242-018-7369-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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31
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Xu J, Wang D, Yao H, Bu K, Pan J, He J, Xu F, Hong Z, Chen X, Huang F. Nano Titanium Monoxide Crystals and Unusual Superconductivity at 11 K. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:1706240. [PMID: 29334154 DOI: 10.1002/adma.201706240] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Indexed: 06/07/2023]
Abstract
Nano TiO2 is investigated intensely due to extraordinary photoelectric performances in photocatalysis, new-type solar cells, etc., but only very few synthesis and physical properties have been reported on nanostructured TiO or other low valent titanium-containing oxides. Here, a core-shell nanoparticle made of TiO core covered with a ≈5 nm shell of amorphous TiO1+x is newly constructed via a controllable reduction method to synthesize nano TiO core and subsequent soft oxidation to form the shell (TiO1+x ). The physical properties measurements of electrical transport and magnetism indicate these TiO@TiO1+x nanocrystals are a type-ІІ superconductor of a recorded Tconset = 11 K in the binary Ti-O system. This unusual superconductivity could be attributed to the interfacial effect due to the nearly linear gradient of O/Ti ratio across the outer amorphous layer. This novel synthetic method and enhanced superconductivity could open up possibilities in interface superconductivity of nanostructured composites with well-controlled interfaces.
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Affiliation(s)
- Jijian Xu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Dong Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Heliang Yao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Kejun Bu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Jie Pan
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Jianqiao He
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Fangfang Xu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Zhanglian Hong
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Xiaobo Chen
- University of Missouri, Kansas City, 64110, MO, USA
| | - Fuqiang Huang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
- State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
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32
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Soliman MM, Al Haron MH, Samir M, Tolba SA, Shaheen BS, Amer AW, Mohammed OF, Allam NK. On the relationship between rutile/anatase ratio and the nature of defect states in sub-100 nm TiO 2 nanostructures: experimental insights. Phys Chem Chem Phys 2018; 20:5975-5982. [PMID: 29424851 DOI: 10.1039/c7cp08629f] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Black TiO2 is being widely investigated due to its superior optical activity and potential applications in photocatalytic hydrogen generation. Herein, the limitations of the hydrogenation process of TiO2 nanostructures are unraveled by exploiting the fundamental tradeoffs affecting the overall efficiency of the water splitting process. To control the nature and concentration of defect states, different reduction rates are applied to sub-100 nm TiO2 nanotubes, chosen primarily for their superiority over their long counterparts. X-Ray Photoelectron Spectroscopy disclosed changes in the stoichiometry of TiO2 with the reduction rate. UV-vis and Raman spectra showed that high reduction rates promote the formation of the rutile phase in TiO2, which is inactive towards water splitting. Furthermore, electrochemical analysis revealed that such high rates induce a higher concentration of localized electronic defect states that hinder the water splitting performance. Finally, incident photon-to-current conversion efficiency (IPCE) highlighted the optimum reduction rate that attains a relatively lower defect concentration as well as lower rutile content, thereby achieving the highest conversion efficiency.
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Affiliation(s)
- Moamen M Soliman
- Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt.
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33
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Liu J, Ma X, Yang L, Liu X, Han A, Lv H, Zhang C, Xu S. In situ green oxidation synthesis of Ti3+ and N self-doped SrTiOxNy nanoparticles with enhanced photocatalytic activity under visible light. RSC Adv 2018; 8:7142-7151. [PMID: 35540354 PMCID: PMC9078412 DOI: 10.1039/c7ra13523h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 02/05/2018] [Indexed: 11/21/2022] Open
Abstract
A simple in situ green oxidation synthesis route was developed to prepare Ti3+ and N self-doped SrTiOxNy nanoparticles using TiN and H2O2 as precursors. X-ray diffraction (XRD), scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM) were used to characterize the crystallinity, structure and morphology. X-ray photoelectron spectroscopy (XPS) tests confirmed the presence of Ti3+ and N in the prepared SrTiOxNy nanoparticles. The resultant nanoparticles were shown to have strong absorption from 400 to 800 nm using UV-vis diffuse reflectance spectroscopy (UV-vis DRS). The formation mechanism of the Ti3+ and N self-doped SrTiOxNy nanoparticles was also discussed. Under visible light irradiation, the obtained Ti3+ and N self-doped samples showed higher photocatalytic activity for the degradation of the model wastewater, methylene blue (MB) solution. The most active sample T-130-Vac, obtained at 130 °C under vacuum, showed a 9.5-fold enhancement in the visible light decomposition of MB in comparison to the commercial catalyst nano-SrTiO3. The sample also showed a relatively high cycling stability for photocatalytic activity. A simple in situ green oxidation synthesis route was developed to prepare Ti3+ and N self-doped SrTiOxNy nanoparticles using TiN and H2O2 as precursors.![]()
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Affiliation(s)
- Jiandong Liu
- School of Chemical Engineering
- Qinghai University
- Xining 810016
- China
| | - Xiaohong Ma
- School of Chemical Engineering
- Qinghai University
- Xining 810016
- China
| | - Lina Yang
- School of Chemical Engineering
- Qinghai University
- Xining 810016
- China
| | - Xingliang Liu
- School of Chemical Engineering
- Qinghai University
- Xining 810016
- China
| | - Aixia Han
- School of Chemical Engineering
- Qinghai University
- Xining 810016
- China
| | - Haitang Lv
- School of Chemical Engineering
- Qinghai University
- Xining 810016
- China
| | - Chao Zhang
- School of Chemical Engineering
- Qinghai University
- Xining 810016
- China
| | - Shiai Xu
- School of Chemical Engineering
- Qinghai University
- Xining 810016
- China
- Shanghai Key Laboratory of Advanced Polymeric Materials
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34
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Synthesis of Ti3+ and P5+ co-doped TiO2 nanocrystal with enhanced visible light photocatalytic activity. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2017.07.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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35
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Fang W, Xing M, Zhang J. Modifications on reduced titanium dioxide photocatalysts: A review. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2017. [DOI: 10.1016/j.jphotochemrev.2017.05.003] [Citation(s) in RCA: 186] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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36
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Gu W, Lu F, Wang C, Kuga S, Wu L, Huang Y, Wu M. Face-to-Face Interfacial Assembly of Ultrathin g-C 3N 4 and Anatase TiO 2 Nanosheets for Enhanced Solar Photocatalytic Activity. ACS APPLIED MATERIALS & INTERFACES 2017; 9:28674-28684. [PMID: 28799746 DOI: 10.1021/acsami.7b10010] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Face-to-face interfacial assembly of TiO2-g-C3N4 hybrid (2D TCN-A) is developed by surfactant-assisted hydrothermal treatment forming a sandwich structure of anatase TiO2 nanosheets (TiO2-A, 5-6 monolayers) and g-C3N4 nanosheets (∼3 monolayers). Post air-annealing is found effective for insertion of oxygen to the hybrid, which remedies the oxygen vacancies of TiO2 (B) nanosheets and converts it to anatase nanosheets. The enhanced light adsorption, increased donor density, and prolonged life of charge carries are achieved by variation of bandgap and the formation of heterojuction between the two kinds of nanosheets, facilitating separation and transfer of charge carriers. The 2D TCN-A-70 nanosheets show a high photodegradation rate of methyl orange (kapp ≈ 0.189 min-1) and photocatalytic evolution rate of hydrogen (18200 μmol g-1 h-1). This 2D nanosheets hybrid is potentially useful in alleviating environmental and energy issues.
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Affiliation(s)
- Wenli Gu
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , 29 Zhongguancun East Road, Haidian District, Beijing 100190, China
- University of the Chinese Academy of Sciences , 19 A Yuquan Rd, Shijingshan District, Beijing 100049, China
| | - Feixue Lu
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , 29 Zhongguancun East Road, Haidian District, Beijing 100190, China
- University of the Chinese Academy of Sciences , 19 A Yuquan Rd, Shijingshan District, Beijing 100049, China
| | - Chao Wang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , 29 Zhongguancun East Road, Haidian District, Beijing 100190, China
| | - Shigenori Kuga
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , 29 Zhongguancun East Road, Haidian District, Beijing 100190, China
| | - Lizhu Wu
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , 29 Zhongguancun East Road, Haidian District, Beijing 100190, China
| | - Yong Huang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , 29 Zhongguancun East Road, Haidian District, Beijing 100190, China
| | - Min Wu
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , 29 Zhongguancun East Road, Haidian District, Beijing 100190, China
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37
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Li K, Huang Z, Zeng X, Huang B, Gao S, Lu J. Synergetic Effect of Ti 3+ and Oxygen Doping on Enhancing Photoelectrochemical and Photocatalytic Properties of TiO 2/g-C 3N 4 Heterojunctions. ACS APPLIED MATERIALS & INTERFACES 2017; 9:11577-11586. [PMID: 28266841 DOI: 10.1021/acsami.6b16191] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To improve the utilization of visible light and reduce photogenerated electron/hole recombination, Ti3+ self-doped TiO2/oxygen-doped graphitic carbon nitride (Ti3+-TiO2/O-g-C3N4) heterojunctions were prepared via hydrothermal treatment of a mixture of g-C3N4 and titanium oxohydride sol obtained from the reaction of TiH2 with H2O2. In this way, exfoliated O-g-C3N4 and Ti3+-TiO2 nanoparticles were obtained. Simultaneously, strong bonding was formed between Ti3+-TiO2 nanoparticles and exfoliated O-g-C3N4 during the hydrothermal process. Charge transfer and recombination processes were characterized by transient photocurrent responses, electrochemical impedance test, and photoluminescence spectroscopy. The photocatalytic performances were investigated through rhodamine B degradation test under an irradiation source based on 30 W cold visible-light-emitting diode. The highest visible-light photoelectrochemical and photocatalytic activities were observed from the heterojunction with 1:2 mass ratio of Ti3+-TiO2 to O-g-C3N4. The photodegradation reaction rate constant based on this heterojuction is 0.0356 min-1, which is 3.87 and 4.56 times higher than those of pristine Ti3+-TiO2 and pure g-C3N4, respectively. The remarkably high photoelectrochemical and photocatalytic performances of the heterojunctions are mainly attributed to the synergetic effect of efficient photogenerated electron-hole separation, decreased electron transfer resistance from interfacial chemical hydroxy residue bonds, and oxidizing groups originating from Ti3+-TiO2 and O-g-C3N4.
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Affiliation(s)
- Kai Li
- College of Chemistry and Materials Science, Ludong University , Yantai 264025, People's Republic of China
| | - Zhenyu Huang
- College of Chemistry and Materials Science, Ludong University , Yantai 264025, People's Republic of China
| | - Xiaoqiao Zeng
- Chemical Sciences and Engineering Division, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - Baibiao Huang
- State Key Laboratory of Crystal Materials, Shandong University , Jinan 250100, People's Republic of China
| | - Shanmin Gao
- College of Chemistry and Materials Science, Ludong University , Yantai 264025, People's Republic of China
| | - Jun Lu
- Chemical Sciences and Engineering Division, Argonne National Laboratory , Argonne, Illinois 60439, United States
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38
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Zhou X, Liu N, Schmuki P. Photocatalysis with TiO2 Nanotubes: “Colorful” Reactivity and Designing Site-Specific Photocatalytic Centers into TiO2 Nanotubes. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03709] [Citation(s) in RCA: 190] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xuemei Zhou
- Department
of Materials Science WW4, LKO, University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen, Germany
| | - Ning Liu
- Department
of Materials Science WW4, LKO, University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen, Germany
| | - Patrik Schmuki
- Department
of Materials Science WW4, LKO, University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen, Germany
- Department
of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21569, Saudi Arabia
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39
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Hailili R, Dong G, Ma Y, Jin S, Wang C, Xu T. Layered Perovskite Pb2Bi4Ti5O18 for Excellent Visible Light-Driven Photocatalytic NO Removal. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b04706] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Reshalaiti Hailili
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China
- The Graduate School of Chinese Academy of Science, Beijing 100049, China
| | - Guohui Dong
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China
| | - Yichi Ma
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb Illinois 60115, United States
| | - Si Jin
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China
| | - Chuanyi Wang
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China
| | - Tao Xu
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb Illinois 60115, United States
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40
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Xu J, Tian Z, Yin G, Lin T, Huang F. Controllable reduced black titania with enhanced photoelectrochemical water splitting performance. Dalton Trans 2017; 46:1047-1051. [DOI: 10.1039/c6dt04060h] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Black titania prepared by metal-reduction methods is systematically studied and the controllable reduced black titania shows a five times higher H2 production rate in photoelectrochemical water splitting.
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Affiliation(s)
- Jijian Xu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- P.R. China
| | - Zhangliu Tian
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- P.R. China
| | - Guoheng Yin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- P.R. China
| | - Tianquan Lin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- P.R. China
| | - Fuqiang Huang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- P.R. China
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41
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Fang W, Khrouz L, Zhou Y, Shen B, Dong C, Xing M, Mishra S, Daniele S, Zhang J. Reduced {001}-TiO2−x photocatalysts: noble-metal-free CO2 photoreduction for selective CH4 evolution. Phys Chem Chem Phys 2017; 19:13875-13881. [DOI: 10.1039/c7cp01212h] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The preparation of reduced TiO2 photocatalysts with high Ti3+ concentration is a great challenge due to their instability in air.
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Affiliation(s)
- Wenzhang Fang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Chemical Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | | | - Yi Zhou
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Chemical Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Bin Shen
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Chemical Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Chunyang Dong
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Chemical Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Mingyang Xing
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Chemical Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Shashank Mishra
- Université Claude Bernard Lyon 1
- Institut de Recherches sur la Catalyse et L'environnement de Lyon (IRCELYON)
- CNRS
- UMR 5256
- 69626 Villeurbanne
| | - Stéphane Daniele
- Université Claude Bernard Lyon 1
- Institut de Recherches sur la Catalyse et L'environnement de Lyon (IRCELYON)
- CNRS
- UMR 5256
- 69626 Villeurbanne
| | - Jinlong Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Chemical Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
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42
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Nguyen CC, Dinh CT, Do TO. Hollow Sr/Rh-codoped TiO2 photocatalyst for efficient sunlight-driven organic compound degradation. RSC Adv 2017. [DOI: 10.1039/c6ra25987a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Sunlight-driven photocatalysis has emerged as a potential technology to address organic pollutant issues.
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Affiliation(s)
| | - Cao-Thang Dinh
- Department of Electrical and Computer Engineering
- University of Toronto
- Toronto
- Canada
| | - Trong-On Do
- Department of Chemical Engineering
- Laval University
- Quebec
- Canada
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43
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Aronne A, Fantauzzi M, Imparato C, Atzei D, De Stefano L, D'Errico G, Sannino F, Rea I, Pirozzi D, Elsener B, Pernice P, Rossi A. Electronic properties of TiO2-based materials characterized by high Ti3+ self-doping and low recombination rate of electron–hole pairs. RSC Adv 2017. [DOI: 10.1039/c6ra27111a] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ti3+ self-doped black titania is obtained by a simple annealing in air without harsh conditions nor external reducing agents.
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44
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Xu Y, Wu S, Wan P, Sun J, Hood ZD. Introducing Ti3+defects based on lattice distortion for enhanced visible light photoreactivity in TiO2microspheres. RSC Adv 2017. [DOI: 10.1039/c7ra04885h] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Combined effect of lattice distortion and Ti3+defects greatly improves the visible light photocatalytic activity.
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Affiliation(s)
- Yunfan Xu
- Electron Microscopy Center of Chongqing University
- College of Materials Science and Engineering
- Chongqing University
- Chongqing
- China
| | - Sujuan Wu
- Electron Microscopy Center of Chongqing University
- College of Materials Science and Engineering
- Chongqing University
- Chongqing
- China
| | - Piaopiao Wan
- Electron Microscopy Center of Chongqing University
- College of Materials Science and Engineering
- Chongqing University
- Chongqing
- China
| | - Jianguo Sun
- Electron Microscopy Center of Chongqing University
- College of Materials Science and Engineering
- Chongqing University
- Chongqing
- China
| | - Zachary D. Hood
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
- Center for Nanophase Materials Sciences
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45
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Wang Q, Fan J, Zhang S, Yun Y, Zhang J, Zhang P, Hu J, Wang L, Shao G. In situ coupling of Ti2O with rutile TiO2 as a core–shell structure and its photocatalysis performance. RSC Adv 2017. [DOI: 10.1039/c7ra10347f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The bimodal oxidation behavior of TiH2 generates a core–shell structure. The formation of Ti2O promotes visible-light response.
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Affiliation(s)
- Qingjie Wang
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450002
- China
- State Centre for International Cooperation on Designer Low-carbon and Environmental Materials
| | - Jiajie Fan
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450002
- China
- State Centre for International Cooperation on Designer Low-carbon and Environmental Materials
| | - Shilin Zhang
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450002
- China
- State Centre for International Cooperation on Designer Low-carbon and Environmental Materials
| | - Yifan Yun
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450002
- China
- State Centre for International Cooperation on Designer Low-carbon and Environmental Materials
| | - Jinhua Zhang
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450002
- China
- State Centre for International Cooperation on Designer Low-carbon and Environmental Materials
| | - Peng Zhang
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450002
- China
- State Centre for International Cooperation on Designer Low-carbon and Environmental Materials
| | - Junhua Hu
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450002
- China
- State Centre for International Cooperation on Designer Low-carbon and Environmental Materials
| | - Lijie Wang
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450002
- China
- State Centre for International Cooperation on Designer Low-carbon and Environmental Materials
| | - Guosheng Shao
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450002
- China
- State Centre for International Cooperation on Designer Low-carbon and Environmental Materials
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46
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Zhou P, Xie Y, Liu L, Song J, Chen T, Ling Y. Bicrystalline TiO2 heterojunction for enhanced organic photodegradation: engineering and exploring surface chemistry. RSC Adv 2017. [DOI: 10.1039/c6ra28658e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Bicrystalline TiO2 anatase/rutile (TiAR) and anatase/brookite (TiAB) have been studied for photocatalytic degrdation of organics, while H2O2 treatment induced opposite mechanisms on the surface.
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Affiliation(s)
- Panpan Zhou
- Nanchang Hangkong University
- Department of Material Chemistry
- Nanchang
- China
| | - Yu Xie
- Nanchang Hangkong University
- Department of Material Chemistry
- Nanchang
- China
| | - Lianjun Liu
- University of Wisconsin-Milwaukee
- Mechanical Engineering Department
- Milwaukee
- USA
| | - Jianhua Song
- Nanchang Hangkong University
- Department of Material Chemistry
- Nanchang
- China
| | - Tongcai Chen
- Nanchang Hangkong University
- Department of Material Chemistry
- Nanchang
- China
| | - Yun Ling
- Nanchang Hangkong University
- Department of Material Chemistry
- Nanchang
- China
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47
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Zhu G, Xu J, Zhao W, Huang F. Constructing Black Titania with Unique Nanocage Structure for Solar Desalination. ACS APPLIED MATERIALS & INTERFACES 2016; 8:31716-31721. [PMID: 27801572 DOI: 10.1021/acsami.6b11466] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Solar desalination driven by solar radiation as heat source is freely available, however, hindered by low efficiency. Herein, we first design and synthesize black titania with a unique nanocage structure simultaneously with light trapping effect to enhance light harvesting, well-crystallized interconnected nanograins to accelerate the heat transfer from titania to water and with opening mesopores (4-10 nm) to facilitate the permeation of water vapor. Furthermore, the coated self-floating black titania nanocages film localizes the temperature increase at the water-air interface rather than uniformly heating the bulk of the water, which ultimately results in a solar-thermal conversion efficiency as high as 70.9% under a simulated solar light with an intensity of 1 kW m-2 (1 sun). This finding should inspire new black materials with rationally designed structure for superior solar desalination performance.
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Affiliation(s)
- Guilian Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
| | - Jijian Xu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, People's Republic of China
| | - Wenli Zhao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
| | - Fuqiang Huang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, People's Republic of China
- State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, People's Republic of China
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Kumar R, Govindarajan S, Siri Kiran Janardhana RK, Rao TN, Joshi SV, Anandan S. Facile One-Step Route for the Development of in Situ Cocatalyst-Modified Ti 3+ Self-Doped TiO 2 for Improved Visible-Light Photocatalytic Activity. ACS APPLIED MATERIALS & INTERFACES 2016; 8:27642-27653. [PMID: 27667775 DOI: 10.1021/acsami.6b07000] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Development of visible-light-driven photocatalysts by employing a relatively simple, efficient, and cost-effective one-step process is essential for commercial applications. Herein, we report for the first time the synthesis of in situ Cu-ion modified Ti3+ self-doped rutile TiO2 by such a facile one-step solution precursor plasma spray (SPPS) process using a water-soluble titanium precursor. In the SPPS process, Ti3+ self-doping on Ti4+ of rutile TiO2 is found to take place because of electron transfer from the created oxygen vacancies to Ti4+-ions. In situ Cu modification of the above Ti3+ self-doped rutile TiO2 by additionally introducing a Cu solution into plasma plume is also demonstrated. While the Ti3+ self-doping induces broad absorption in the visible-light region, the addition of Cu ion leads to even broader absorption in the visible region owing to resulting synergistic properties. The above materials were evaluated for various self-cleaning photocatalytic applications under visible-light illumination. Cu-ion modified Ti3+ self-doped rutile TiO2 is noted to exhibit a remarkably enhanced visible-light activity in comparison with Ti3+ self-doped rutile TiO2, with the latter itself outperforming commercial TiO2 photocatalysts, thereby suggesting the suitability of the material for indoor applications. The broad visible-light absorption by Ti3+ self-doping, the holes with strong oxidation power generated in the valence band, and electrons in Ti3+ isolated states that are effectively separated into the high reductive sites of Cu ions upon visible-light irradiation, accounts for improved photocatalytic activity. Moreover, the synthesis process (SPPS) provides a valuable alternative to orthodox multistep processes for the preparation of such visible-light-driven photocatalysts.
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Affiliation(s)
- Raju Kumar
- Centre for Nanomaterials and ‡Centre for Engineered Coatings, International Advanced Research Centre for Powder Metallurgy and New Materials , Hyderabad 500005, India
| | - Sivakumar Govindarajan
- Centre for Nanomaterials and ‡Centre for Engineered Coatings, International Advanced Research Centre for Powder Metallurgy and New Materials , Hyderabad 500005, India
| | - Reddy Kunda Siri Kiran Janardhana
- Centre for Nanomaterials and ‡Centre for Engineered Coatings, International Advanced Research Centre for Powder Metallurgy and New Materials , Hyderabad 500005, India
| | - Tata Narasinga Rao
- Centre for Nanomaterials and ‡Centre for Engineered Coatings, International Advanced Research Centre for Powder Metallurgy and New Materials , Hyderabad 500005, India
| | - Shrikant Vishwanath Joshi
- Centre for Nanomaterials and ‡Centre for Engineered Coatings, International Advanced Research Centre for Powder Metallurgy and New Materials , Hyderabad 500005, India
| | - Srinivasan Anandan
- Centre for Nanomaterials and ‡Centre for Engineered Coatings, International Advanced Research Centre for Powder Metallurgy and New Materials , Hyderabad 500005, India
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49
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Wang Y, Cai J, Wu M, Zhang H, Meng M, Tian Y, Ding T, Gong J, Jiang Z, Li X. Hydrogenated Cagelike Titania Hollow Spherical Photocatalysts for Hydrogen Evolution under Simulated Solar Light Irradiation. ACS APPLIED MATERIALS & INTERFACES 2016; 8:23006-14. [PMID: 27500415 DOI: 10.1021/acsami.6b05777] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We synthesized the hydrogenated cagelike TiO2 hollow spheres through a facile sacrificial template method. After the hydrogenation treatment, the disordered surface layer and cagelike pores were generated on the shell of the hollow spheres. The spheres exhibit a high hydrogen evolution rate of 212.7 ± 10.6 μmol h(-1) (20 mg) under the simulated solar light irradiation, which is ∼12 times higher than the hydrogenated TiO2 solid spheres and is ∼9 times higher than the original TiO2 hollow spheres. The high activity results from the unique architectures and hydrogenation. Both the multiple reflection that was improved by the cagelike hollow structures and the red shift of the absorption edge that was induced by hydrogenation can enhance the ultraviolet and visible light absorption. In addition, the high concentration of oxygen vacancies, as well as the hydrogenated disordered surface layer, can improve the efficiency for migration and separation of generated charge carriers.
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Affiliation(s)
- Yating Wang
- Collaborative Innovation Center for Chemical Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
- Tianjin Key Laboratory of Applied Catalysis Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
| | - Jinmeng Cai
- Collaborative Innovation Center for Chemical Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
- Tianjin Key Laboratory of Applied Catalysis Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
| | - Moqing Wu
- Collaborative Innovation Center for Chemical Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
- Tianjin Key Laboratory of Applied Catalysis Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
| | - Hao Zhang
- Collaborative Innovation Center for Chemical Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
- Tianjin Key Laboratory of Applied Catalysis Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
| | - Ming Meng
- Collaborative Innovation Center for Chemical Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
- Tianjin Key Laboratory of Applied Catalysis Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
| | - Ye Tian
- Collaborative Innovation Center for Chemical Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
- Tianjin Key Laboratory of Applied Catalysis Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
| | - Tong Ding
- Collaborative Innovation Center for Chemical Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
- Tianjin Key Laboratory of Applied Catalysis Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
| | - Jinlong Gong
- Collaborative Innovation Center for Chemical Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
| | - Zheng Jiang
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201204, People's Republic of China
| | - Xingang Li
- Collaborative Innovation Center for Chemical Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
- Tianjin Key Laboratory of Applied Catalysis Science & Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin 300072, People's Republic of China
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Kong XY, Lee WPC, Ong WJ, Chai SP, Mohamed AR. Oxygen-Deficient BiOBr as a Highly Stable Photocatalyst for Efficient CO2Reduction into Renewable Carbon-Neutral Fuels. ChemCatChem 2016. [DOI: 10.1002/cctc.201600782] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xin Ying Kong
- Multidisciplinary Platform of Advanced Engineering, Chemical Engineering Discipline, School of Engineering; Monash University; Jalan Lagoon Selatan, Bandar Sunway 47500 Selangor Malaysia
| | - W. P. Cathie Lee
- Multidisciplinary Platform of Advanced Engineering, Chemical Engineering Discipline, School of Engineering; Monash University; Jalan Lagoon Selatan, Bandar Sunway 47500 Selangor Malaysia
| | - Wee-Jun Ong
- Multidisciplinary Platform of Advanced Engineering, Chemical Engineering Discipline, School of Engineering; Monash University; Jalan Lagoon Selatan, Bandar Sunway 47500 Selangor Malaysia
- Institute of Materials Research and Engineering (IMRE); Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way Innovis 138634 Singapore
| | - Siang-Piao Chai
- Multidisciplinary Platform of Advanced Engineering, Chemical Engineering Discipline, School of Engineering; Monash University; Jalan Lagoon Selatan, Bandar Sunway 47500 Selangor Malaysia
| | - Abdul Rahman Mohamed
- Low Carbon Economy (LCE) Group, School of Chemical Engineering; Universiti Sains Malaysia, Engineering Campus, Seri Ampangan; 14300 Nibong Tebal Pulau Pinang Malaysia
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