Ru–TiO2 semiconducting nanoparticles for the photo-catalytic degradation of bromothymol blue

R. M. Kulkarni, R. S. Malladi, M. S. Hanagadakar, M. R. Doddamani, B. Santhakumari, S. D. Kulkarni

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Photo-catalytic degradation of bromothymol blue (BTB) in an aqueous medium by Ru–TiO2 using UVC (254 nm) irradiation was investigated for a pH range of 4.0–8.0. The liquid impregnation method was used to synthesize 0.2, 0.4 and 0.8 % ruthenium doped TiO2 (Ru–TiO2) nanoparticles. The characterizations of resulting nanoparticles were done using X-ray diffraction, scanning electron microscopy, fourier transform infrared spectroscopy, transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy analysis. The crystallite sizes of doped and undoped nanoparticles were determined from X-ray diffraction spectra using Scherrer equation. The average crystallite size of undoped TiO2 was found to be 17.00 nm, whereas the crystallite sizes of 0.2, 0.4 and 0.8 % Ru–TiO2 were 16.67, 15.70 and 14.40 nm respectively. The TEM images confirm the particle sizes to be 10–40 nm. Pseudo-first order rate constants (kobs) determined were found to decrease with increase in pH. The effect of BTB Concentration, catalyst dosage, a percentage of doping of photo catalyst, pH and UV light intensity of BTB on the degradation rate were also examined.

Original languageEnglish
Pages (from-to)13065-13074
Number of pages10
JournalJournal of Materials Science: Materials in Electronics
Volume27
Issue number12
DOIs
Publication statusPublished - 01-12-2016

Fingerprint

Bromthymol Blue
Ruthenium
Crystallite size
ruthenium
degradation
Nanoparticles
Degradation
nanoparticles
Transmission electron microscopy
X ray diffraction
Catalysts
catalysts
Impregnation
Ultraviolet radiation
transmission electron microscopy
x rays
Fourier transform infrared spectroscopy
Rate constants
Particle size
Doping (additives)

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Kulkarni, R. M. ; Malladi, R. S. ; Hanagadakar, M. S. ; Doddamani, M. R. ; Santhakumari, B. ; Kulkarni, S. D. / Ru–TiO2 semiconducting nanoparticles for the photo-catalytic degradation of bromothymol blue. In: Journal of Materials Science: Materials in Electronics. 2016 ; Vol. 27, No. 12. pp. 13065-13074.
@article{bdcfee7e0b314ca7a7f5772f0f5e7cb8,
title = "Ru–TiO2 semiconducting nanoparticles for the photo-catalytic degradation of bromothymol blue",
abstract = "Photo-catalytic degradation of bromothymol blue (BTB) in an aqueous medium by Ru–TiO2 using UVC (254 nm) irradiation was investigated for a pH range of 4.0–8.0. The liquid impregnation method was used to synthesize 0.2, 0.4 and 0.8 {\%} ruthenium doped TiO2 (Ru–TiO2) nanoparticles. The characterizations of resulting nanoparticles were done using X-ray diffraction, scanning electron microscopy, fourier transform infrared spectroscopy, transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy analysis. The crystallite sizes of doped and undoped nanoparticles were determined from X-ray diffraction spectra using Scherrer equation. The average crystallite size of undoped TiO2 was found to be 17.00 nm, whereas the crystallite sizes of 0.2, 0.4 and 0.8 {\%} Ru–TiO2 were 16.67, 15.70 and 14.40 nm respectively. The TEM images confirm the particle sizes to be 10–40 nm. Pseudo-first order rate constants (kobs) determined were found to decrease with increase in pH. The effect of BTB Concentration, catalyst dosage, a percentage of doping of photo catalyst, pH and UV light intensity of BTB on the degradation rate were also examined.",
author = "Kulkarni, {R. M.} and Malladi, {R. S.} and Hanagadakar, {M. S.} and Doddamani, {M. R.} and B. Santhakumari and Kulkarni, {S. D.}",
year = "2016",
month = "12",
day = "1",
doi = "10.1007/s10854-016-5449-6",
language = "English",
volume = "27",
pages = "13065--13074",
journal = "Journal of Materials Science: Materials in Electronics",
issn = "0957-4522",
publisher = "Springer New York",
number = "12",

}

Ru–TiO2 semiconducting nanoparticles for the photo-catalytic degradation of bromothymol blue. / Kulkarni, R. M.; Malladi, R. S.; Hanagadakar, M. S.; Doddamani, M. R.; Santhakumari, B.; Kulkarni, S. D.

In: Journal of Materials Science: Materials in Electronics, Vol. 27, No. 12, 01.12.2016, p. 13065-13074.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Ru–TiO2 semiconducting nanoparticles for the photo-catalytic degradation of bromothymol blue

AU - Kulkarni, R. M.

AU - Malladi, R. S.

AU - Hanagadakar, M. S.

AU - Doddamani, M. R.

AU - Santhakumari, B.

AU - Kulkarni, S. D.

PY - 2016/12/1

Y1 - 2016/12/1

N2 - Photo-catalytic degradation of bromothymol blue (BTB) in an aqueous medium by Ru–TiO2 using UVC (254 nm) irradiation was investigated for a pH range of 4.0–8.0. The liquid impregnation method was used to synthesize 0.2, 0.4 and 0.8 % ruthenium doped TiO2 (Ru–TiO2) nanoparticles. The characterizations of resulting nanoparticles were done using X-ray diffraction, scanning electron microscopy, fourier transform infrared spectroscopy, transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy analysis. The crystallite sizes of doped and undoped nanoparticles were determined from X-ray diffraction spectra using Scherrer equation. The average crystallite size of undoped TiO2 was found to be 17.00 nm, whereas the crystallite sizes of 0.2, 0.4 and 0.8 % Ru–TiO2 were 16.67, 15.70 and 14.40 nm respectively. The TEM images confirm the particle sizes to be 10–40 nm. Pseudo-first order rate constants (kobs) determined were found to decrease with increase in pH. The effect of BTB Concentration, catalyst dosage, a percentage of doping of photo catalyst, pH and UV light intensity of BTB on the degradation rate were also examined.

AB - Photo-catalytic degradation of bromothymol blue (BTB) in an aqueous medium by Ru–TiO2 using UVC (254 nm) irradiation was investigated for a pH range of 4.0–8.0. The liquid impregnation method was used to synthesize 0.2, 0.4 and 0.8 % ruthenium doped TiO2 (Ru–TiO2) nanoparticles. The characterizations of resulting nanoparticles were done using X-ray diffraction, scanning electron microscopy, fourier transform infrared spectroscopy, transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy analysis. The crystallite sizes of doped and undoped nanoparticles were determined from X-ray diffraction spectra using Scherrer equation. The average crystallite size of undoped TiO2 was found to be 17.00 nm, whereas the crystallite sizes of 0.2, 0.4 and 0.8 % Ru–TiO2 were 16.67, 15.70 and 14.40 nm respectively. The TEM images confirm the particle sizes to be 10–40 nm. Pseudo-first order rate constants (kobs) determined were found to decrease with increase in pH. The effect of BTB Concentration, catalyst dosage, a percentage of doping of photo catalyst, pH and UV light intensity of BTB on the degradation rate were also examined.

UR - http://www.scopus.com/inward/record.url?scp=84982839360&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84982839360&partnerID=8YFLogxK

U2 - 10.1007/s10854-016-5449-6

DO - 10.1007/s10854-016-5449-6

M3 - Article

VL - 27

SP - 13065

EP - 13074

JO - Journal of Materials Science: Materials in Electronics

JF - Journal of Materials Science: Materials in Electronics

SN - 0957-4522

IS - 12

ER -