Hydrothermal synthesis of S-doped TiO2 nanoparticles and their photocatalytic ability for degradation of methyl orange
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In this article, a simple synthesis route to nanocrystalline S-doped TiO2 photocatalysts by a hydrothermal method at 180 degrees C was developed and the photocatalyst activity of the obtained powders for the degradation of methyl orange was studied.About:
This article is published in Ceramics International.The article was published on 2009-04-01 and is currently open access. It has received 119 citations till now. The article focuses on the topics: Anatase & Methyl orange.read more
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Modified TiO2 For Environmental Photocatalytic Applications: A Review
TL;DR: In this paper, the authors summarized recent research dealing with development of titanium dioxide (TiO2) used for environmental applications and suggested new research directions, including preparation aspects for the development of this promising material.
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Photocatalytic degradation of organic pollutants using TiO2-based photocatalysts: A review
Dongjie Chen,Yanling Cheng,Nan Zhou,Paul Chen,Yunpu Wang,Yunpu Wang,Kun Li,Shuhao Huo,Pengfei Cheng,Peng Peng,Renchuang Zhang,Lu Wang,Hui Liu,Yuhuan Liu,Roger Ruan +14 more
TL;DR: In this paper, a variety of parameters of TiO2-based photocatalysts need to be studied: substrate, light intensity, dopant, particle size, structure, etc.
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Photocatalytic oxidation of organic dyes and pollutants in wastewater using different modified titanium dioxides: A comparative review
TL;DR: In this article, the effectiveness of pure and modified TiO2 for photocatalytic degradation of different organic matters and clarifies the advantages of the modifiedTiO2 with photoactivity under visible light.
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A review on non metal ion doped titania for the photocatalytic degradation of organic pollutants under UV/solar light: Role of photogenerated charge carrier dynamics in enhancing the activity
L. Gomathi Devi,R. Kavitha +1 more
TL;DR: In this article, the photocatalytic activity of non metal doped titania for a wide variety of pollutants degradation under UV/visible light, with special emphasis on nitrogen doped TiO 2.
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Application of doped photocatalysts for organic pollutant degradation - A review
Mohammad Reza Delsouz Khaki,Mohammad Saleh Shafeeyan,Abdul Aziz Abdul Raman,Wan Mohd Ashri Wan Daud +3 more
TL;DR: This paper aims at providing a deep insight into advanced oxidation processes, photocatalysts and their applications in wastewater treatment, doping processes and the effects of operational factors on photoc atalytic degradation.
References
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Journal ArticleDOI
Electrochemical Photolysis of Water at a Semiconductor Electrode
Akira Fujishima,Kenichi Honda +1 more
TL;DR: Water photolysis is investigated by exploiting the fact that water is transparent to visible light and cannot be decomposed directly, but only by radiation with wavelengths shorter than 190 nm.
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The Role of Metal Ion Dopants in Quantum-Sized TiO2: Correlation between Photoreactivity and Charge Carrier Recombination Dynamics
TL;DR: In this article, the presence of metal ion dopants in the TiO_2 crystalline matrix significantly influences photoreactivity, charge carrier recombination rates, and interfacial electron-transfer rates.
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Band gap narrowing of titanium dioxide by sulfur doping
TL;DR: In this paper, the authors used ab initio band calculations to find that mixing of the S 3p states with the valence band can contribute to the band gap narrowing, based on the theoretical analyses.
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Preparation of S-doped TiO2 photocatalysts and their photocatalytic activities under visible light
Teruhisa Ohno,Miyako Akiyoshi,Tsutomu Umebayashi,Keisuke Asai,Takahiro Mitsui,Michio Matsumura +5 more
TL;DR: In this article, the authors have synthesized chemically modified titanium dioxide photocatalysts in which S (S4+) substitutes for some of the lattice titanium atoms, which showed strong absorption for visible light and high activities for degradation of methylene blue, 2-propanol in aqueous solution and partial oxidation of adamantane under irradiation at wavelengths longer than 440nm.
Bandgap narrowing of titanium dioxide by sulfur doping
Abstract: Titanium dioxide (TiO2) doped with sulfur (S) was synthesized by oxidation annealing of titanium disulfide (TiS2). According to the x-ray diffraction patterns, TiS2 turned into anatase TiO2 when annealed at 600 °C. The residual S atoms occupied O-atom sites in TiO2 to form Ti–S bonds. The S doping caused the absorption edge of TiO2 to be shifted into the lower-energy region. Based on the theoretical analyses using ab initio band calculations, mixing of the S 3p states with the valence band was found to contribute to the band gap narrowing.