caa a22 4500 606181601 CHVBK 20210128100811.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s10876-014-0806-1 doi (NATIONALLICENCE)springer-10.1007/s10876-014-0806-1 Facile Synthesis of Quasi Spherical ZnO Nanoparticles with Excellent Photocatalytic Activity [Elektronische Daten] [Manoj Pudukudy, Zahira Yaakob] In this article, we report on the synthesis, characterization and photocatalytic activity of quasi spherical ZnO nanoparticles obtained by an egg white assisted facile sol-gel type wet method. The material was characterized for its structural, textural and optical properties. The hexagonal wurtzite crystalline structure of ZnO with high phase purity was confirmed by the X-ray diffraction analysis. The mesoporous texture generated from the inter-agglomeration of ZnO nanoparticles was clearly shown in the transmission electron microscopy (TEM) images. The N2 sorption analysis indicated a specific surface area of 18m2/g, with monomodal mesoporosity. The optical studies had shown the decreased optical band gap (3.28eV) of the sample with the existence of a number of crystal defects, especially oxygen vacancies in the sample. The aquatic dye pollutants were effectively degraded under UV irradiation over the ZnO nano photocatalysts. They were also found to be reusable up to five consecutive runs without loss in catalytic activity, indicating their high photostability against photocorrosion. Springer Science+Business Media New York, 2014 ZnO nanoparticles nationallicence Optical properties nationallicence Mesoporosity nationallicence Photodegradation nationallicence Reusability nationallicence Pudukudy Manoj Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia aut Yaakob Zahira Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia aut Journal of Cluster Science Springer US; http://www.springer-ny.com 26/4(2015-07-01), 1187-1201 1040-7278 26:4<1187 2015 26 10876 https://doi.org/10.1007/s10876-014-0806-1 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10876-014-0806-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pudukudy Manoj Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia aut NATIONALLICENCE 700 1- Yaakob Zahira Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia aut NATIONALLICENCE 773 0- Journal of Cluster Science Springer US; http://www.springer-ny.com 26/4(2015-07-01), 1187-1201 1040-7278 26:4<1187 2015 26 10876