Journal ArticleDOI
One-step hydrothermal synthesis of anatase TiO2/reduced graphene oxide nanocomposites with enhanced photocatalytic activity
Dayu Liang,Can Cui,Haihua Hu,Wang Yaping,Sheng Xu,Beili Ying,Peigang Li,Bingqing Lu,Honglei Shen +8 more
TLDR
A facile and efficient one-step hydrothermal approach has been developed to synthesize chemically bonded TiO2/reduced graphene oxide (RGO) nanocomposites with Ti(SO4)2 and graphene oxide as precursors and ethanol/water solvent as a reducing agent as discussed by the authors.About:
This article is published in Journal of Alloys and Compounds.The article was published on 2014-01-05. It has received 178 citations till now. The article focuses on the topics: Graphene & Anatase.read more
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Recent progress in enhancing photocatalytic efficiency of TiO2-based materials
Abstract: Titanium dioxide (TiO2) has been proved to be a leading semiconductor material to removal of environmental pollutants. However, it suffers from low photocatalytic efficiency under visible-light irradiation and narrow light response range because of its intrinsic large band gap. One of the most significant scientific and commercial progresses to date has been the development of visible light active TiO2 by incorporation of additional components in the TiO2 structure. In this review, a variety of strategies to improve the photocatalytic efficiency and shift the photocatalysis to visible light range are discussed. The materials are covered in the review including TiO2/SiO2, TiO2/carbon nanotube, TiO2-graphene/grapheme oxide, non-metal and/or metal doped TiO2. Emphasis is given to highlight current techniques and recent progress in enhancing photocatalytic efficiency of TiO2-based materials, which drives the rising of some key strategies involved in the ongoing challenges and potential new directions of TiO2 photocatalysts.
Journal ArticleDOI
Carbonaceous-TiO2 nanomaterials for photocatalytic degradation of pollutants: A review
TL;DR: In this article, the authors present recent progress in the design and synthesis of carbonaceous-TiO 2 photocatalysts, covering carbon doping, activated carbon, fullerenes, carbon nanotubes and graphene.
Journal ArticleDOI
Preparation and characterization of Ag-doped TiO2 nanomaterials and their photocatalytic reduction of Cr(VI) under visible light
X.F. Lei,Xiangxin Xue,He Yang +2 more
TL;DR: In this article, the photocatalytic activity of Ag-doped TiO2 nanomaterials was investigated under visible light irradiation and the results showed that the Ag doping and the calcination temperature played an important role on the microstructure and photocatalysis activity of the samples.
Journal ArticleDOI
Bare TiO 2 and graphene oxide TiO 2 photocatalysts on the degradation of selected pesticides and influence of the water matrix
Marta Cruz,Cristina Gómez,C.J. Durán-Valle,Luisa M. Pastrana-Martínez,Joaquim L. Faria,Adrián M.T. Silva,Marisol Faraldos,Ana Bahamonde +7 more
TL;DR: In this paper, the photocatalytic activity of a home-made titanium dioxide and its corresponding composite based on graphene oxide (GO), the GO-TiO 2 catalyst, has been investigated under UV-vis in the photodegradation of a mixture of four pesticides classified by the European Union as priority pollutants: diuron, alachlor, isoproturon and atrazine.
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Photocatalytic degradation and mineralization of perfluorooctanoic acid (PFOA) using a composite TiO2 -rGO catalyst.
TL;DR: Findings indicate that rGO provided the suited properties of TiO2-rGO, possibly as a result of acting as electron acceptor and avoiding the high recombination electron/hole pairs.
References
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Journal ArticleDOI
Electric Field Effect in Atomically Thin Carbon Films
Kostya S. Novoselov,Andre K. Geim,Sergey V. Morozov,Da Jiang,Y. Zhang,S. V. Dubonos,Irina V. Grigorieva,A. A. Firsov +7 more
TL;DR: Monocrystalline graphitic films are found to be a two-dimensional semimetal with a tiny overlap between valence and conductance bands and they exhibit a strong ambipolar electric field effect.
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Graphene: Status and Prospects
TL;DR: This review analyzes recent trends in graphene research and applications, and attempts to identify future directions in which the field is likely to develop.
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The chemistry of graphene oxide
TL;DR: This review will be of value to synthetic chemists interested in this emerging field of materials science, as well as those investigating applications of graphene who would find a more thorough treatment of the chemistry of graphene oxide useful in understanding the scope and limitations of current approaches which utilize this material.
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Large-scale pattern growth of graphene films for stretchable transparent electrodes
Keun Soo Kim,Yue Zhao,Houk Jang,Sang Yoon Lee,Jong Min Kim,Kwang S. Kim,Jong Hyun Ahn,Philip Kim,Philip Kim,Jae-Young Choi,Byung Hee Hong +10 more
TL;DR: The direct synthesis of large-scale graphene films using chemical vapour deposition on thin nickel layers is reported, and two different methods of patterning the films and transferring them to arbitrary substrates are presented, implying that the quality of graphene grown by chemical vapours is as high as mechanically cleaved graphene.