Journal ArticleDOI
Lifetime and regeneration of immobilized titania for photocatalytic removal of aqueous hexavalent chromium.
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TLDR
Immobilized titania (TiO2) batch reactors reduced hexavalent chromium (Cr(VI) in the form of potassium dichromate (K2Cr2O7) to trivalent Chromium (III) in aqueous solution at pH 3 under 171 W/m2 light intensity.About:
This article is published in Journal of Hazardous Materials.The article was published on 2005-09-30. It has received 61 citations till now. The article focuses on the topics: Hexavalent chromium & Chromium.read more
Citations
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Journal ArticleDOI
Photocatalytic Degradation of Methyl Orange by CeO2 and Fe–doped CeO2 Films under Visible Light Irradiation
Duangdao Channei,Burapat Inceesungvorn,Natda Wetchakun,S Ukritnukun,Andrew Nattestad,Jun Chen,Sukon Phanichphant +6 more
TL;DR: The 1.50 mol% Fe-doped CeO2 film was found to be the optimal iron doping concentration for MO degradation in this study and the presence of Fe3+ as found from XPS analysis, may act as electron acceptor and/or hole donor, facilitating longer lived charge carrier separation in Fe- doped Ce O2 films.
Journal ArticleDOI
One-step hydrothermal synthesis of high-performance visible-light-driven SnS2/SnO2 nanoheterojunction photocatalyst for the reduction of aqueous Cr(VI)
Yong Cai Zhang,Yong Cai Zhang,Long Yao,Geshan Zhang,Dionysios D. Dionysiou,Dionysios D. Dionysiou,Jing Li,Xihua Du +7 more
TL;DR: In this article, a simple and cost-effective one-step hydrothermal method, which was based on the reactions of tin(IV) chloride pentahydrate and different dosages of thioacetamide in water at 190°C for 6h, was employed for the synthesis of composition-tunable SnS 2 /SnO 2 nanoheterojunctions.
Journal ArticleDOI
Photocatalytic reduction of Cr(VI) over different TiO2 photocatalysts and the effects of dissolved organic species
TL;DR: The results demonstrated that the photocatalytic reduction of Cr(VI) alone was dependent on both of specific surface area and crystalline structure of the photoc atalyst in the absence of any organic compounds, but was dominated by thespecific surface area of the photosynthesis in the presence of organic compounds.
Journal ArticleDOI
One-step in situ solvothermal synthesis of SnS2/TiO2 nanocomposites with high performance in visible light-driven photocatalytic reduction of aqueous Cr(VI)
TL;DR: In this article, the as-synthesized SnS 2 /TiO 2 nanocomposite with adjustable TiO 2 contents was synthesized directly via the solvothermal reactions of SnCl 4 ·5H 2 O, thioacetamide and different amounts of tetrabutyl titanate in the mixed solvents of ethanol and acetic acid at 180°C for 12h.
Journal ArticleDOI
Titanium oxide based photocatalytic materials development and their role of in the air pollutants degradation: Overview and forecast.
Chi Him A. Tsang,Kai Li,Yuxuan Zeng,Wei Zhao,Tao Zhang,Yujie Zhan,Ruijie Xie,Dennis Y.C. Leung,Haibao Huang +8 more
TL;DR: The background information and developments from pure TiO2 to chemically modified TiO1-based materials as photocatalysts were discussed in detail, which covered their basic properties and their role in the air pollutant removal.
References
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Journal ArticleDOI
Heterogeneous photocatalysis: Transition metal ions in photocatalytic systems
TL;DR: In this paper, the presence of transition metal ions in photocatalytic reactions is reviewed according to two main approaches: (a) the influence of metal ions on the rate of photocatalysis and (b) the transformation of the ions to less toxic species or their deposition on the semiconductor catalyst surface for recovery of expensive and useful metals.
Book
Principles of solar engineering
TL;DR: In this article, the authors introduce solar energy conversion, thermal energy storage and transport, and photovoltaics for capturing solar energy through biomass, and economic analysis.
Journal ArticleDOI
Photocatalytic reduction of Cr(VI) in aqueous solutions by UV irradiation with the presence of titanium dioxide.
Young Ku,In-Liang Jung +1 more
TL;DR: The reduction of Cr(VI) in aqueous solution by UV/TiO2 reduction process was studied under various solution pH values, TiO2 dosages, light intensities, dissolved oxygen levels and other operating conditions to determine the reduction rates by photocatalytic-induced elections.
Book
Photocatalysis Science and Technology
Masao Kaneko,Ichiro Okura +1 more
TL;DR: In this paper, photoelectrochemistry at Semiconductor/Liquid Interfaces is discussed, and a solution-phase processing of thin-filters is proposed for photoelectric TiO2 solar cells.
Journal ArticleDOI
Removal of toxic metal ions from wastewater by semiconductor photocatalysis
Dingwang Chen,Ajay K. Ray +1 more
TL;DR: In this paper, physical adsorption and photocatalytic reduction of eight environmentally significant metal ions in TiO2 suspensions of Degussa P25 and Hombikat UV100 were investigated.
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Photocatalytic reduction of Cr(VI) in aqueous solutions by UV irradiation with the presence of titanium dioxide.
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