Journal ArticleDOI
Synergistic photosensitized removal of Cr(VI) and Rhodamine B dye on amorphous TiO2 under visible light irradiation
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TLDR
It was the larger specific surface area rather than better crystallinity dominated the synergistic degradation dynamics under visible light irradiation with lower pH (2), greater catalyst loading amount (2g/L), proper RhB/Cr(VI) ratios (1:8) and higher light intensity (500 W).About:
This article is published in Journal of Hazardous Materials.The article was published on 2013-02-15. It has received 103 citations till now. The article focuses on the topics: Light intensity & Rhodamine B.read more
Citations
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Insight into highly efficient simultaneous photocatalytic removal of Cr(VI) and 2,4-diclorophenol under visible light irradiation by phosphorus doped porous ultrathin g-C3N4 nanosheets from aqueous media: Performance and reaction mechanism
Yaocheng Deng,Lin Tang,Guangming Zeng,Zhejing Zhu,Ming Yan,Yaoyu Zhou,Jiajia Wang,Yani Liu,Jingjing Wang +8 more
TL;DR: In this article, a phosphorus doped porous ultrathin carbon nitride nanosheets (PCN-S) was prepared successfully via the element doping and thermal exfoliation method.
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Cu2O/BiVO4 heterostructures: synthesis and application in simultaneous photocatalytic oxidation of organic dyes and reduction of Cr(VI) under visible light
Qing Yuan,Lang Chen,Miao Xiong,Jie He,Sheng Lian Luo,Chak Tong Au,Chak Tong Au,Shuang-Feng Yin +7 more
TL;DR: In this article, the authors synthesize a composite of Cu2O/BiVO4 nanoparticles for the simultaneous oxidation of organic dyes and reduction of Cr(VI) in neutral media.
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Enhanced Photocatalytic Removal of Uranium(VI) from Aqueous Solution by Magnetic TiO2/Fe3O4 and Its Graphene Composite
TL;DR: In the present work, magnetically collectable TiO2/Fe3O4 and its graphene composites were fabricated and utilized for the photocatalytical removal of U(VI) from aqueous solutions and demonstrated its excellent performance in the cleanup of uranium contamination.
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Microwave-Assisted Fabrication of Nanoparticulate TiO2 Microspheres for Synergistic Photocatalytic Removal of Cr(VI) and Methyl Orange
TL;DR: The results obtained from the application of NTMs for simultaneous photocatalytic decontamination of Cr( VI) and methyl orange (MO) demonstrated a strong synergistic effect that dramatically enhanced both Cr(VI) reduction and MO oxidation removal efficiencies.
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Highly efficient and recyclable triple-shelled Ag@Fe3O4@SiO2@TiO2 photocatalysts for degradation of organic pollutants and reduction of hexavalent chromium ions
Jianwei Su,Yunxia Zhang,Sichao Xu,Shuan Wang,Hualin Ding,Pan Shusheng,Guozhong Wang,Guanghai Li,Guanghai Li,Huijun Zhao,Huijun Zhao +10 more
TL;DR: The enhanced photocatalytic activity and excellent chemical stability, in combination with the magnetic recyclability, make these multifunctional nanostructures promising candidates to remediate aquatic contaminants and meet the demands of future environmental issues.
References
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Heterogeneous photocatalytic degradation of organic contaminants over titanium dioxide : A review of fundamentals, progress and problems
TL;DR: A review of the use of the TiO 2 photocatalyst for remediation and decontamination of wastewater, report the recent work done, important achievements and problems is presented in this paper, however, a lot more is needed from engineering design and modelling for successful application of the laboratory scale techniques to large scale operation.
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Semiconductor-mediated photodegradation of pollutants under visible-light irradiation
TL;DR: In this tutorial review, the unique mechanistic characteristics, the constitution of photodegradation systems and their performance are described and the involved radical reactions during the degradation are discussed.
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Photocatalytic degradation of various types of dyes (alizarin s, crocein orange g, methyl red, congo red, methylene blue) in water by uv-irradiated titania
Hinda Lachheb,Hinda Lachheb,Eric Puzenat,Ammar Houas,Mohamed Ksibi,Elimame Elaloui,Chantal Guillard,Jean-Marie Herrmann +7 more
TL;DR: In this article, the photocatalytic degradation of five various dyes has been investigated in TiO 2 /UV aqueous suspensions, and it was shown that the dyes can be degraded by varying the chemical structures, either anthraquinonic (Alizarin S), or azoic (Crocein Orange G (OG), Methyl Red (MR), Congo Red (CR)) or heteropolyaromatic (Methylene Blue (MB)).
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Photocatalytic Activity of Amorphous−Anatase Mixture of Titanium(IV) Oxide Particles Suspended in Aqueous Solutions
TL;DR: In this article, an exothermic peak at ca. 723 K in the DSC pattern was assigned to the crystallization of amorphous phase to anatase, and its heat was used to evaluate the weight fraction.
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Kinetics of the Anatase‐Rutile Transformation
Robert D. Shannon,Joseph A. Pask +1 more
TL;DR: In this paper, a sigmoid curve of transformation vs. time was interpreted in terms of a nucleation-growth process, which led to activation energies for nucleation of 109, 136, and 148 kcal/mole.