Removal of disperse orange 25 using in situ surface-modified iron-doped TiO2 nanoparticles

Shahmoradi, B. and Maleki, A. and Byrappa, K. (2015) Removal of disperse orange 25 using in situ surface-modified iron-doped TiO2 nanoparticles. DESALINATION AND WATER TREATMENT, 53 (13). pp. 3615-3622. ISSN 1944-3986

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Official URL: https://doi.org/ 10.1080/19443994.2013.873994

Abstract

Disperse Orange 25 (DO25) is one of the strong azo dyes, which makes its degradation too difficult. Photodegradation of this dye was conducted using in situ surface modified iron doped TiO2 nanoparticles under sunlight. The nanoparticles were synthesized under mild hydrothermal conditions (p = autogeneous, T = 100 degrees C, t = 18 h) using Fe2O3 and n-butyleamine as dopant and surface modifier respectively. The nanoparticles synthesized were characterized systematically using powder XRD, FTIR, SEM, EDAX, BET surface area, BJT, porosity, and UV-vis spectroscopy. The photodegradation variables were dye concentration, photocatalyst load, time duration, and pH. The removal efficiency was determined using UV-vis spectrophotometer and TOC analyzer. The results revealed that in situ surface modified iron doped TiO2 nanoparticles could remarkably degrade high concentration of DO25 under sunlight, which could not be achieved for reagent grade TiO2.

Item Type: Article
Subjects: F Earth Science > Geology
Divisions: Department of > Earth Science
Depositing User: Shrirekha N
Date Deposited: 12 Jun 2019 09:54
Last Modified: 12 Jun 2019 09:54
URI: http://eprints.uni-mysore.ac.in/id/eprint/2758

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