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Euphorbia heterophylla leaf extract mediated green synthesis of Ag/TiO2 nanocomposite and investigation of its excellent catalytic activity for reduction of variety of dyes in water.

作者信息

Atarod Monireh, Nasrollahzadeh Mahmoud, Mohammad Sajadi S

机构信息

Department of Chemistry, Faculty of Science, University of Qom, Qom 37185-359, Iran.

Department of Chemistry, Faculty of Science, University of Qom, Qom 37185-359, Iran.

出版信息

J Colloid Interface Sci. 2016 Jan 15;462:272-9. doi: 10.1016/j.jcis.2015.09.073. Epub 2015 Oct 9.

DOI:10.1016/j.jcis.2015.09.073
PMID:26469545
Abstract

This work reports a facile and green synthesis of Ag/TiO2 nanocomposite by extract of leaves of Euphorbia heterophylla without any stabilizer or surfactant. The green synthesized Ag/TiO2 nanocomposite was characterized by field emission scanning electron microscope (FESEM), energy-dispersive X-ray spectroscopy (EDS), fourier-transform infrared (FT-IR) spectroscopy, X-ray diffraction analysis (XRD) and UV-vis. The Ag/TiO2 nanocomposite was found to be effective catalyst for reduction of various dyes, such as 4-nitrophenol (4-NP), Methyl orange (MO), Congo red (CR) and Methylene blue (MB) in the presence of NaBH4 in water at room temperature. Catalysis reactions were monitored by employing UV-vis spectroscopy. Catalysis reactions followed pseudo-first order rate equation. The catalyst can be recovered and reused several times without significant loss of its catalytic activity.

摘要

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