The effects of cerium doping concentration on the properties and photocatalytic activity of bimetallic Mo/Ce catalyst

Ghazaleh Allaedini, Siti Masrinda Tasirin, Payam Aminayi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this study, the characterization and photocatalytic activity of MoO3 nanoparticles doped with various doping concentrations of cerium have been investigated. The Fourier transform infrared (FT-IR) spectra of the prepared catalysts confirmed that MoO3 particles have been successfully doped by cerium. Field emission scanning electron microscopy (FESEM) was performed to visualize the surface morphology of the obtained catalysts. The XRD patterns suggested that the crystallinity of the sample with the lowest doping concentration of 15 mol % was higher in comparison with samples of higher doping concentrations. The volume-averaged crystal sizes of the obtained catalysts were calculated to be 25, 28, and 32 nm for 15, 35, and 60 mol % samples, respectively. The photocatalytic activity along with the reaction kinetics of Ce-doped MoO3 nanoparticles have also been investigated through the dye degradation of methyl orange. The synthesized Ce-doped MoO3 particles with the lowest dopant concentration of 15 mol % exhibited the highest photocatalytic activity for methyl orange dye degradation. It was observed that photo-degradation activity decreased with an increase in the doping concentration of cerium. The predicted rate constants for samples with 15, 35, and 60 mol % doping concentrations were found to be 0.0432, 0.035, and 0.029 min–1, respectively.

Original languageEnglish
Pages (from-to)2080-2088
Number of pages9
JournalRussian Journal of Physical Chemistry A
Volume90
Issue number10
DOIs
Publication statusPublished - 1 Oct 2016

Fingerprint

Cerium
cerium
Doping (additives)
catalysts
Catalysts
degradation
dyes
Coloring Agents
nanoparticles
Nanoparticles
Degradation
Photodegradation
low concentrations
field emission
crystallinity
reaction kinetics
Reaction kinetics
infrared spectra
Field emission
Surface morphology

Keywords

  • cerium
  • co-precipitation method
  • doping
  • impregnation method
  • molybdenum
  • photo-degradation
  • photocatalytic activity

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

The effects of cerium doping concentration on the properties and photocatalytic activity of bimetallic Mo/Ce catalyst. / Allaedini, Ghazaleh; Tasirin, Siti Masrinda; Aminayi, Payam.

In: Russian Journal of Physical Chemistry A, Vol. 90, No. 10, 01.10.2016, p. 2080-2088.

Research output: Contribution to journalArticle

Allaedini, Ghazaleh ; Tasirin, Siti Masrinda ; Aminayi, Payam. / The effects of cerium doping concentration on the properties and photocatalytic activity of bimetallic Mo/Ce catalyst. In: Russian Journal of Physical Chemistry A. 2016 ; Vol. 90, No. 10. pp. 2080-2088.
@article{bbe941718e9e45afa4867c70953fa18e,
title = "The effects of cerium doping concentration on the properties and photocatalytic activity of bimetallic Mo/Ce catalyst",
abstract = "In this study, the characterization and photocatalytic activity of MoO3 nanoparticles doped with various doping concentrations of cerium have been investigated. The Fourier transform infrared (FT-IR) spectra of the prepared catalysts confirmed that MoO3 particles have been successfully doped by cerium. Field emission scanning electron microscopy (FESEM) was performed to visualize the surface morphology of the obtained catalysts. The XRD patterns suggested that the crystallinity of the sample with the lowest doping concentration of 15 mol {\%} was higher in comparison with samples of higher doping concentrations. The volume-averaged crystal sizes of the obtained catalysts were calculated to be 25, 28, and 32 nm for 15, 35, and 60 mol {\%} samples, respectively. The photocatalytic activity along with the reaction kinetics of Ce-doped MoO3 nanoparticles have also been investigated through the dye degradation of methyl orange. The synthesized Ce-doped MoO3 particles with the lowest dopant concentration of 15 mol {\%} exhibited the highest photocatalytic activity for methyl orange dye degradation. It was observed that photo-degradation activity decreased with an increase in the doping concentration of cerium. The predicted rate constants for samples with 15, 35, and 60 mol {\%} doping concentrations were found to be 0.0432, 0.035, and 0.029 min–1, respectively.",
keywords = "cerium, co-precipitation method, doping, impregnation method, molybdenum, photo-degradation, photocatalytic activity",
author = "Ghazaleh Allaedini and Tasirin, {Siti Masrinda} and Payam Aminayi",
year = "2016",
month = "10",
day = "1",
doi = "10.1134/S0036024416080094",
language = "English",
volume = "90",
pages = "2080--2088",
journal = "Russian Journal of Physical Chemistry A",
issn = "0036-0244",
publisher = "Maik Nauka-Interperiodica Publishing",
number = "10",

}

TY - JOUR

T1 - The effects of cerium doping concentration on the properties and photocatalytic activity of bimetallic Mo/Ce catalyst

AU - Allaedini, Ghazaleh

AU - Tasirin, Siti Masrinda

AU - Aminayi, Payam

PY - 2016/10/1

Y1 - 2016/10/1

N2 - In this study, the characterization and photocatalytic activity of MoO3 nanoparticles doped with various doping concentrations of cerium have been investigated. The Fourier transform infrared (FT-IR) spectra of the prepared catalysts confirmed that MoO3 particles have been successfully doped by cerium. Field emission scanning electron microscopy (FESEM) was performed to visualize the surface morphology of the obtained catalysts. The XRD patterns suggested that the crystallinity of the sample with the lowest doping concentration of 15 mol % was higher in comparison with samples of higher doping concentrations. The volume-averaged crystal sizes of the obtained catalysts were calculated to be 25, 28, and 32 nm for 15, 35, and 60 mol % samples, respectively. The photocatalytic activity along with the reaction kinetics of Ce-doped MoO3 nanoparticles have also been investigated through the dye degradation of methyl orange. The synthesized Ce-doped MoO3 particles with the lowest dopant concentration of 15 mol % exhibited the highest photocatalytic activity for methyl orange dye degradation. It was observed that photo-degradation activity decreased with an increase in the doping concentration of cerium. The predicted rate constants for samples with 15, 35, and 60 mol % doping concentrations were found to be 0.0432, 0.035, and 0.029 min–1, respectively.

AB - In this study, the characterization and photocatalytic activity of MoO3 nanoparticles doped with various doping concentrations of cerium have been investigated. The Fourier transform infrared (FT-IR) spectra of the prepared catalysts confirmed that MoO3 particles have been successfully doped by cerium. Field emission scanning electron microscopy (FESEM) was performed to visualize the surface morphology of the obtained catalysts. The XRD patterns suggested that the crystallinity of the sample with the lowest doping concentration of 15 mol % was higher in comparison with samples of higher doping concentrations. The volume-averaged crystal sizes of the obtained catalysts were calculated to be 25, 28, and 32 nm for 15, 35, and 60 mol % samples, respectively. The photocatalytic activity along with the reaction kinetics of Ce-doped MoO3 nanoparticles have also been investigated through the dye degradation of methyl orange. The synthesized Ce-doped MoO3 particles with the lowest dopant concentration of 15 mol % exhibited the highest photocatalytic activity for methyl orange dye degradation. It was observed that photo-degradation activity decreased with an increase in the doping concentration of cerium. The predicted rate constants for samples with 15, 35, and 60 mol % doping concentrations were found to be 0.0432, 0.035, and 0.029 min–1, respectively.

KW - cerium

KW - co-precipitation method

KW - doping

KW - impregnation method

KW - molybdenum

KW - photo-degradation

KW - photocatalytic activity

UR - http://www.scopus.com/inward/record.url?scp=84987875313&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84987875313&partnerID=8YFLogxK

U2 - 10.1134/S0036024416080094

DO - 10.1134/S0036024416080094

M3 - Article

AN - SCOPUS:84987875313

VL - 90

SP - 2080

EP - 2088

JO - Russian Journal of Physical Chemistry A

JF - Russian Journal of Physical Chemistry A

SN - 0036-0244

IS - 10

ER -