editorial metal oxide nanostructures: synthesis, properties, and...

EditorialMetal Oxide Nanostructures:Synthesis, Properties, and Applications

Lin-Hua Xu,1 Dnyaneshwar S. Patil,2 Jiazhi Yang,3 and Jingzhong Xiao4

1School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China2Department of Electronics, North Maharashtra University, Jalgaon, Maharashtra 425001, India3School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China4Department of Physics, Faculty of Science and Technology (FCT), University of Coimbra (UC), Rua Larga,3004-516 Coimbra, Portugal

Correspondence should be addressed to Lin-Hua Xu; [email protected]

Received 7 September 2015; Accepted 7 September 2015

Copyright © 2015 Lin-Hua Xu et al. This is an open access article distributed under the Creative Commons Attribution License,which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

In recent years, nanostructured materials have attractedwide attention due to their fascinating optical and electricalproperties, which make these materials potentially suitablefor applications in electronics, optics, photonics, and sensors.Some metal oxides show a wide variety of morphologiessuch as nanowires, nanorods, nanotubes, nanorings, andnanobelts. Synthesis and investigation of these metal-oxidenanostructures are beneficial not only for understanding thefundamental phenomena in low dimensional systems, butalso for developing new-generation nanodevices with highperformance.

This special issue is focused on synthesis, properties,characterizations, and numerical modeling of metal-oxidenanomaterials and nanostructures with potential applica-tions in photocatalysts, wastewater purification, chemicalsensors, and so on.

B. Dai et al. reported that an environment-friendly bio-material bacterial cellulose (BC) was introduced to substitutefor general organic polymers to assist the preparation ofZnO/CdS/BC photocatalyst hybrid nanofiber through copre-cipitation method under the low-temperature condition.Thephotocatalytic activities of ZnO/CdS/BC were influenced bythe added amount of CdS. It is found that ZnO/CdS/BCnanohybrid fibers (CdS: 10%) show the best photocatalyticefficiency among the samples.

R. Liu and H. Tai Ou reported that IC lead frame scrapswere used in their research as raw materials to fabricate

magnetic ferrite powders and combined subsequently withtitanium sulfate and urea to producemagnetic photocatalystsby coprecipitation for effective waste utilization. They foundthat wastes can be transformed to valuable magnetic photo-catalysts in their research to solve the separation problem ofwastewater and TiO

2photocatalysts by magnetic field.

M. Mahlambi et al. studied the TiO2nanocatalysts sup-

ported on a hybrid carbon-covered alumina (CCA) supportand carried out a comparison between visible light and UVlight degradation of Rhodamine B. The CCA/TiO

2nanocat-

alysts had a much larger surface area than the unsupportedtitania and they exhibited overall higher photodegradationefficiency under both UV and visible light than unsupportedTiO2.

T. Le et al. reported that the enzymeCPOwas successfullyentrapped inside a silica nanostructure prepared from theprecursorTMOSwith orwithout addition of the hydrophobicmodifier MTMS. The catalytic performance of optimizedCPO sol-gel beads approached 18% relative to free CPO insolution as assessed via the pyrogallol peroxidation assay.

M. Daud et al. carried out a research work for the removalof nitrate from raw water for a drinking water supply usingFe/Pt bimetallic nanoparticles and anion exchange resins.Theoverall results indicate that Fe/Pt nanoparticles having a largesurface area (627m2/g) are potentially more efficient than thecommercially used anionic resins for nitrate removal fromwater.

Hindawi Publishing CorporationJournal of NanotechnologyVolume 2015, Article ID 135715, 2 pageshttp://dx.doi.org/10.1155/2015/135715

2 Journal of Nanotechnology

Growth mechanisms of nanostructured titania in tur-bulent reacting flows were studied by S. C. Garrick. Directnumerical simulation is utilized in simulating the hydrolysisof titanium tetrachloride to produce titania in a turbulent,planar jet. Results show that, in the proximal region of the jet,nucleation and condensation are the dominant mechanisms.However, once the jet potential core collapses and turbulentmixing begins, coagulation is the dominant mechanism. Thedata also shows that the coagulation growth rate is as muchas twice the condensation growth rate.

Acknowledgments

The guest editorial team would like to thank the authors fortheir contributions to this special issue and the reviewers fortheir precious time and dedication.

Lin-Hua XuDnyaneshwar S. Patil

Jiazhi YangJingzhong Xiao

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