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Pulsed Laser Ablation in Water Synthesis of Black TiO2-Graphene Oxide Nanocomposites and the Enhanced Photocatalytic Performance

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Black TiO2-graphene oxide (GO) nanocomposites are synthesized via the pulsed laser ablating TiO2 powders and GO in deionized water. The simple process enables the preparation of black TiO2 nanoparticles and anchors them onto the GO sheet in one step. The TiO2-GO nanocomposites exhibit greatly enhancement for photocatalytic degradation of Rhodamine B (RB) dye in comparison with the pristine and the ablated black TiO2. The heterojunction structure plays an important role in efficient charge separation, which reduces the recombination of photogenerated electrons and holes. The unique two-dimensional structure of GO enables the composite to have a large specific surface area, and prevents the agglomeration of TiO2 nanoparticles, which are beneficial to the photocatalytic performance of the composite.
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Keywords: Black TiO2-GO Nanocomposites; Photocatalytic Performance; Pulsed Laser Ablation in Liquid

Document Type: Research Article

Affiliations: Yangzhou University, College of Physics Science and Technology & Institute of Optoelectronic Technology, Yangzhou, 225002, P. R. China

Publication date: April 1, 2020

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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