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      Influence of crystal structure of nanosized ZrO 2 on photocatalytic degradation of methyl orange

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          Abstract

          Nanosized ZrO 2 powders with near pure monoclinic, tetragonal, and cubic structures synthesized by various methods were used as catalysts for photocatalytic degradation of methyl orange. The structural and textural properties of the samples were analyzed by X-ray diffraction, Raman spectroscopy, TEM, UV-vis, X-ray photoelectron spectroscopy (XPS), and N 2 adsorption measurements. The performance of synthesized ZrO 2 nanoparticles in the photocatalytic degradation of methyl orange under UV light irradiation was evaluated. The photocatalytic activity of the pure monoclinic ZrO 2 sample is higher than that of the tetragonal and cubic ZrO 2 samples under optimum identical conditions. The characterization results revealed that monoclinic ZrO 2 nanoparticles possessed high crystallinity and mesopores with diameter of 100 Å. The higher activity of the monoclinic ZrO 2 sample for the photocatalytic degradation of methyl orange can be attributed to the combining effects of factors including the presence of small amount of oxygen-deficient zirconium oxide phase, high crystallinity, large pores, and high density of surface hydroxyl groups.

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          Most cited references 58

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            ZnO–SnO2 Hollow Spheres and Hierarchical Nanosheets: Hydrothermal Preparation, Formation Mechanism, and Photocatalytic Properties

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                Author and article information

                Contributors
                sbasahel@hotmail.com
                Catalysa98@yahoo.com
                mmokhtar2000@yahoo.com
                nkatabathini@kau.edu.sa
                Journal
                Nanoscale Res Lett
                Nanoscale Res Lett
                Nanoscale Research Letters
                Springer US (Boston )
                1931-7573
                1556-276X
                18 February 2015
                18 February 2015
                2015
                : 10
                Affiliations
                [ ]Department of Chemistry, Faculty of Science, King Abdulaziz University, P. O. Box, 80203, Jeddah, 21589 Kingdom of Saudi Arabia
                [ ]Chemistry Department, Faculty of Science, Sohag University, P.O. Box 82524, Sohag, 82524 Egypt
                [ ]Physical Chemistry Department, National Research Centre, El Buhouth St., Dokki, Cairo, 12622 Egypt
                Article
                780
                10.1186/s11671-015-0780-z
                4385125
                © Basahel et al.; licensee Springer. 2015

                This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.

                Categories
                Nano Express
                Custom metadata
                © The Author(s) 2015

                Nanomaterials

                zro2, structural effect, photocatalytic degradationl, methyl orange

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