Removal of methylene blue dye contaminant by combination of ultrasonic and visible light irradiation using perovskite LaMnO3nanocatalyst

Nur Afifah, Rosari Saleh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Citations (Scopus)

Abstract

The applicability of LaMnO3 perovskite as nanocatalyst was investigated for removing of methylene blue as a model compound of organic pollutant under visible light and ultrasonic irradiation simultaneously. The LaMnO3 perovskite was synthesized by co-precipitation method and it was characterized in terms of morphological, structural, compositional, optical and magnetic properties. The detailed characterization confirmed that LaMnO3 perovskite had a single-phase orthorhombic structure with estimated crystallite size of 44 nm. UV-vis diffuse reflectance spectra showed a weak reflection with small band gap energy. The weak ferromagnetic behavior with a saturation magnetization of 3 emu/g was obtained at 1 Tesla. The photosonocatalytic showed significantly higher catalytic activity in decomposing methylene blue compared to that of sonocatalytic or photocatalytic alone. Radical scavenger experiments revealed that holes were the predominant oxidative species involved in the process.

Original languageEnglish
Title of host publication4th International Conference on Nano and Materials Engineering, 2016
EditorsHendra Suherman, Brian Yuliarto, Tjokorda Gde Tirta Nindhia, Brian Yuliarto
PublisherTrans Tech Publications Ltd
Pages99-105
Number of pages7
ISBN (Print)9783038357254
DOIs
Publication statusPublished - 1 Jan 2016
Event4th International Conference on Nano and Materials Engineering, ICNME 2016 - Bali Island, Indonesia
Duration: 7 Apr 20168 Apr 2016

Publication series

NameMaterials Science Forum
Volume864
ISSN (Print)0255-5476

Conference

Conference4th International Conference on Nano and Materials Engineering, ICNME 2016
CountryIndonesia
CityBali Island
Period7/04/168/04/16

Keywords

  • Perovskite
  • Photocatalytic
  • Photosonocatalytic
  • Sonocatalytic

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