Journal ArticleDOI
Superhydrophobic polymethylsilsesquioxane pinned one dimensional ZnO nanostructures for water remediation through photo-catalysis
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TLDR
In this article, the authors developed ultra-dense high aspect ratio ZnO nano-forest-like structures and explored their potential as photo-catalysts, and the films formulated are superhydrophobic (contact angle ∼ 154°) in nature and have been evaluated as containing a high density of oxygen defects.Abstract:
ZnO nanostructures have been heavily explored for a variety of sensing properties and of late a major emphasis by researchers has been to find applications for ZnO materials in the domain of photo-catalysis. ZnO nanoparticles have been found as a better alternative to other materials for removing organic dyes from polluted water and the abolition of several hazardous materials etc. In this work we have developed ultra-dense high aspect ratio ZnO nano-forest like structures and explored their potential as photo-catalysts. The films formulated are superhydrophobic (contact angle ∼ 154°) in nature and have been evaluated as containing a high density of oxygen defects in the crystalline state of the ZnO (as validated through photoluminescence measurements). The samples were found to possess enhanced photo-catalytic properties, as measured through a dye degradation process using an UV-Vis spectrophotometer. These photo-catalytic properties may be due to the high defect density and also the enhanced area of the interactive surface as one goes from nano-particles to nano-rod like structures. The paper gives an insight into highly unique carpeted nano-wire bundles of ZnO and offers immense utility to the realization of high efficiency remediation filters.read more
Citations
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Journal ArticleDOI
Recent advances in the synthesis and application of photocatalytic metal–metal oxide core–shell nanoparticles for environmental remediation and their recycling process
Kunal Mondal,Ashutosh Sharma +1 more
TL;DR: In this article, the development of core-shell nanoparticles with metal oxide semiconductors as a shell has attracted huge research interest in catalysis, photocatalysis, solar photovoltaics and so on owing to their tunable nanoscale functionalities.
Journal ArticleDOI
Facile synthesis of ZnO/GO nanoflowers over Si substrate for improved photocatalytic decolorization of MB dye and industrial wastewater under solar irradiation
TL;DR: In this article, a new method for the synthesis of zinc oxide (ZnO) nanoflowers/graphene oxide (GO) composite, uniformly grown over Silicon (Si) substrate was reported.
Journal ArticleDOI
Design and tailoring of one-dimensional ZnO nanomaterials for photocatalytic degradation of organic dyes: a review
Morasae Samadi,Mohammad Zirak,Amene Naseri,Malihe Kheirabadi,Mahdi Ebrahimi,Alireza Z. Moshfegh +5 more
TL;DR: In this paper, the most widely applied synthesis methods, including vapor phase and solution-based strategies, are described to understand different methods for tailoring 1D ZnO nanophotocatalysts.
Journal ArticleDOI
Solar light based degradation of organic pollutants using ZnO nanobrushes for water filtration
TL;DR: In this article, an effective water filtration system based on the photocatalytic performance of semiconducting dense nano-brushes under natural sunlight is reported, which is useful to fabricate a structured filter element for the passage of water with the use of nanostructures protruding out of the surface.
Journal ArticleDOI
Graphene quantum dots-decorated ZnS nanobelts with highly efficient photocatalytic performances
TL;DR: In this paper, the photocatalytic activity of GQD/ZnS nanocomposites has been found to be highest at an 8 × 10−4 mass ratio.
References
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Journal ArticleDOI
Environmental Applications of Semiconductor Photocatalysis
TL;DR: The slow pace of hazardous waste remediation at military installations around the world is causing a serious delay in conversion of many of these facilities to civilian uses as discussed by the authors, which is a serious problem.
Journal ArticleDOI
Titanium dioxide photocatalysis
TL;DR: A review of the current progress in the area of TiO 2 photocatalysis, mainly photocatalytic air purification, sterilization and cancer therapy is discussed in this paper.
Titanium dioxide as photocatalysis
A Fujshima,T N Rao,D K Tryk +2 more
TL;DR: A review of the current progress in the area of TiO 2 photocatalysis, mainly photocatalytic air purification, sterilization and cancer therapy is discussed in this article.
Journal ArticleDOI
Monodisperse α-Fe2O3 Mesoporous Microspheres: One-Step NaCl-Assisted Microwave-Solvothermal Preparation, Size Control and Photocatalytic Property
Shaowen Cao,Ying-Jie Zhu +1 more
TL;DR: A simple one-step NaCl-assisted microwave-solvothermal method has been developed for the preparation of monodisperse α-Fe2O3 mesoporous microspheres, and high photocatalytic activities in the degradation of salicylic acid are observed.
Journal ArticleDOI
Green luminescent center in undoped zinc oxide films deposited on silicon substrates
Bixia Lin,Zhuxi Fu,Yunbo Jia +2 more
TL;DR: The photoluminescence (PL) spectra of undoped ZnO films deposited on Si substrates by dc reactive sputtering have been studied in this paper, where two emission peaks, centered at 3.18 eV and 2.38 eV, were found to correspond to oxide antisite defect OZn rather than oxygen vacancy VO, zinc vacancy VZn, interstitial zinc Zni, and interstitial oxygen Oi.
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