Solar Photocatalytic Activity of Nanocrystalline ZnO Obtained from Different Precursors

Autor:	Popat Savaleram Tambade, I.S. Quraishi, Dnyaneshwar R. Shinde, Manohar G. Chaskar, R.A. Pawar
Rok vydání:	2020
Předmět:	Chemical engineering Chemistry Photocatalysis 02 engineering and technology General Chemistry 010501 environmental sciences 021001 nanoscience & nanotechnology 0210 nano-technology 01 natural sciences Nanocrystalline material 0105 earth and related environmental sciences
Zdroj:	Asian Journal of Chemistry. 32:1139-1144
ISSN:	0975-427X 0970-7077
DOI:	10.14233/ajchem.2020.22520
Popis:	In present study, ZnO photocatalysts were successfully synthesized by thermal decomposition of different precursors. Thermal decomposition temperatures of precursors were obtained by thermogravimetric analysis. The synthesized ZnO photocatalysts were characterized for their crystalline phase, surface morphology and band gap, respectively by powder X-ray diffraction, scanning electron microscopy and diffuse reflectance spectroscopic methods. Chemical analysis of synthesized ZnO photocatalysts was performed for Zn(II) content. Photocatalytic activity of ZnO photocatalysts was evaluated under the solar irradiation on crystal violet dye in aqueous solution. The results of experiments showed that ZnO synthesized from zinc carbonate consists of higher photocatalytic activity than ZnO synthesized from other precursors, which is even higher than bench mark Degussa P-25 TiO2 photocatalyst. ZnO synthesized from zinc carbonate is further used for mineralization of dyes from three different effluents.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::faa2e0f59e82b8874a181f560ff33a55 https://doi.org/10.14233/ajchem.2020.22520 Zobrazit plný text záznamu