General Information
    • ISSN: 2010-0221 (Print)
    • Abbreviated Title: Int. J. Chem. Eng. Appl.
    • Frequency: Quarterly
    • DOI: 10.18178/IJCEA
    • Editor-in-Chief: Prof. Dr. Shen-Ming Chen
    • Executive Editor: Jennifer X. Zeng
    • Abstracting/ Indexing: Chemical Abstracts Services (CAS), Ulrich's Periodicals Directory, CABI, Electronic Journals Library, Google Scholar, ProQuest,  Crossref, EBSCO, CNKI.
    • Email: ijcea@ejournal.net
  • Sep 29, 2022 News! Vol.13, No.4 has been published with online version.   [Click]
  • Apr 25, 2022 News! Vol.13, No.2 has been published with online version.   [Click]
Editor-in-chief
Prof. Dr. Shen-Ming Chen
National Taipei University of Technology, Taiwan
 

IJCEA 2022 Vol.13(1): 1-9 ISSN: 2010-0221
doi: 10.18178/ijcea.2022.13.1.793

Synthesis and Photocatalytic Activity of Ruthenium-Titania for Enhanced Decolorization of Malachite Green under Visible Light Illumination

Aldrin Lorrenz A. Chan, Sarah Jane C. Lopez, Arvie Victor M. Masangkay, and Lorico DS. Lapitan Jr
Abstract—The photodecolorization of malachite green (MG) dye was effectively done using Ruthenium-doped TiO2 photocatalysts under visible light illumination. X-ray diffraction analysis revealed that anatase and rutile peaks were both found in undoped TiO2 while only anatase peaks were present in Ru-doped TiO2 systems which were calcined at 500°C. The 0.008 Ru-TiO2 photocatalysts calcined at 300°C showed broader peaks compared to those calcined at 500°C. Further increase of calcination temperature to 700°C promotes the transformation of anatase to rutile peaks. The photocatalytic activity of TiO2 was found to increase with the addition of Ruthenium ions, from 20% for undoped TiO2 to 87% for 0.80 Ru-doped TiO2. The maximum photocatalytic removal of MG dye was achieved using 1.50 g∙L-1 of catalyst loading for 0.008 Ru-doped TiO2. The TiO2 photocatalysts prepared at a calcination temperature of 500°C showed higher photodecolorization efficiency compared to those calcined at 300°C and 700°C. Kinetic studies revealed that the photodecolorization of MG using Ru-doped TiO2 followed a first order kinetics.

Index Terms—Photocatalytic, decolorization, malachite green, Titania.

A. A. Chan is with the Department of Chemical Engineering, Faculty of Engineering, University of Santo Tomas, Manila, Philippines (e-mail: aachan@ust.edu.ph).
S. J. Lopez and A. V. Masangkay were with the Department of Chemical Engineering, Faculty of Engineering, University of Santo Tomas, Manila, Philippines.
L. D. Lapitan Jr. is with the Department of Chemical Engineering, Faculty of Engineering, University of Santo Tomas, Manila, Philippines and Research Center for the Natural and Applied Sciences, University of Santo Tomas (e-mail: ldlapitan@ ust.edu.ph).

[PDF]

Cite: Aldrin Lorrenz A. Chan, Sarah Jane C. Lopez, Arvie Victor M. Masangkay, and Lorico DS. Lapitan Jr, "Synthesis and Photocatalytic Activity of Ruthenium-Titania for Enhanced Decolorization of Malachite Green under Visible Light Illumination ," International Journal of Chemical Engineering and Applications vol. 13, no. 1, pp. 1-9, 2022.

PREVIOUS PAPER
First page
NEXT PAPER
Last page
Copyright © 2008-2022. International Journal of Chemical Engineering and Applications. All rights reserved
E-mail: ijcea@ejournal.net