Feasibility of Applying the LED-UV-induced TiO/ZnO-supported HPMoO Nanoparticles in Photocatalytic Degradation of Aniline

Overview

Journal Environ Monit Assess

Publisher Springer

Specialty Environmental Health

Date 2018 Mar 5

PMID 29502239

Citations 5

Authors

Mahmoud Taghavi

Mohammad Taghi Ghaneian

Mohammad Hasan Ehrampoush

Masoumeh Tabatabaee

Mojtaba Afsharnia

Ali Alami

Jalal Mardaneh

Affiliations

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Abstract

In the present study, TiO/ZnO-supported phosphomolybdic acid nanoparticles are investigated by the impregnation method, followed by analyzing their photocatalytic activity under UV-LED light and degradation kinetics degrading aniline as an organic pollutant model. Nanoparticle characteristics and the remaining Keggin structure in the nanocomposites were confirmed by means of FESEM, FTIR, and XRD analyses. Heterogenization of phosphomolybdic acid on TiO and ZnO nanoparticles resulted in the improved light absorption intensity and decreased band gap of nanocomposites. Photocatalytic degradation of aniline was also improved for composite nanoparticles and reached to 25.62, 43.48, and 38.25% for TiO/HPMo, ZnO/HPMo, and TiO/ZnO/HPMo, respectively. Overall, the results showed a good fit to the Langmuir-Hinshelwood kinetic model.

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