Gadolinium doped tin dioxide nanoparticles: An efficient visible light active photocatalyst

Abdullah M. Al-Hamdi, Mika Sillanpää, Joydeep Dutta

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Photocatalytic degradation of phenol with sol-gel prepared rare earth doped tin dioxide (SnO2) nanoparticles was reported. Gadolinium doped tin dioxide (SnO2:Gd) nanoparticles were found to absorb higher visible light compared to lanthanum, neodymium and cerium doped materials that were studied in detail. Photocatalytic degradation of phenol under artificial white light and sunlight in the presence of SnO2:Gd nanoparticles was studied with high performance liquid chromatography (HPLC), capillary electrophoresis (CE), total organic carbon (TOC) measurements and the determination of chemical oxygen demand (COD). Clear correlations between the results obtained from these multiple measurements were found, and a kinetic pathway for the degradation process was proposed. Within 150 min of solar irradiation, the TOC of a 10 ppm phenol solution in water was reduced by 95%-99%, thus demonstrating that SnO2:Gd nanoparticles are efficient visible light photocatalysts.

Original languageEnglish
Pages (from-to)1275-1283
Number of pages9
JournalJournal of Rare Earths
Volume33
Issue number12
DOIs
Publication statusPublished - Dec 1 2015

Fingerprint

gadolinium
Gadolinium
Photocatalysts
tin
Phenol
Nanoparticles
phenol
Organic carbon
Degradation
degradation
total organic carbon
Cerium
Neodymium
Lanthanum
neodymium
Capillary electrophoresis
cerium
Chemical oxygen demand
High performance liquid chromatography
chemical oxygen demand

Keywords

  • organic by-products
  • phenol photo-degradation
  • rare earth dopants
  • solar irradiation
  • tin dioxide nanoparticles

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Chemistry(all)

Cite this

Gadolinium doped tin dioxide nanoparticles : An efficient visible light active photocatalyst. / Al-Hamdi, Abdullah M.; Sillanpää, Mika; Dutta, Joydeep.

In: Journal of Rare Earths, Vol. 33, No. 12, 01.12.2015, p. 1275-1283.

Research output: Contribution to journalArticle

Al-Hamdi, Abdullah M. ; Sillanpää, Mika ; Dutta, Joydeep. / Gadolinium doped tin dioxide nanoparticles : An efficient visible light active photocatalyst. In: Journal of Rare Earths. 2015 ; Vol. 33, No. 12. pp. 1275-1283.
@article{df1eed67ba3041f3880465933ffb9e92,
title = "Gadolinium doped tin dioxide nanoparticles: An efficient visible light active photocatalyst",
abstract = "Photocatalytic degradation of phenol with sol-gel prepared rare earth doped tin dioxide (SnO2) nanoparticles was reported. Gadolinium doped tin dioxide (SnO2:Gd) nanoparticles were found to absorb higher visible light compared to lanthanum, neodymium and cerium doped materials that were studied in detail. Photocatalytic degradation of phenol under artificial white light and sunlight in the presence of SnO2:Gd nanoparticles was studied with high performance liquid chromatography (HPLC), capillary electrophoresis (CE), total organic carbon (TOC) measurements and the determination of chemical oxygen demand (COD). Clear correlations between the results obtained from these multiple measurements were found, and a kinetic pathway for the degradation process was proposed. Within 150 min of solar irradiation, the TOC of a 10 ppm phenol solution in water was reduced by 95{\%}-99{\%}, thus demonstrating that SnO2:Gd nanoparticles are efficient visible light photocatalysts.",
keywords = "organic by-products, phenol photo-degradation, rare earth dopants, solar irradiation, tin dioxide nanoparticles",
author = "Al-Hamdi, {Abdullah M.} and Mika Sillanp{\"a}{\"a} and Joydeep Dutta",
year = "2015",
month = "12",
day = "1",
doi = "10.1016/S1002-0721(14)60557-3",
language = "English",
volume = "33",
pages = "1275--1283",
journal = "Journal of Rare Earths",
issn = "1002-0721",
publisher = "Chinese Rare Earth Society",
number = "12",

}

TY - JOUR

T1 - Gadolinium doped tin dioxide nanoparticles

T2 - An efficient visible light active photocatalyst

AU - Al-Hamdi, Abdullah M.

AU - Sillanpää, Mika

AU - Dutta, Joydeep

PY - 2015/12/1

Y1 - 2015/12/1

N2 - Photocatalytic degradation of phenol with sol-gel prepared rare earth doped tin dioxide (SnO2) nanoparticles was reported. Gadolinium doped tin dioxide (SnO2:Gd) nanoparticles were found to absorb higher visible light compared to lanthanum, neodymium and cerium doped materials that were studied in detail. Photocatalytic degradation of phenol under artificial white light and sunlight in the presence of SnO2:Gd nanoparticles was studied with high performance liquid chromatography (HPLC), capillary electrophoresis (CE), total organic carbon (TOC) measurements and the determination of chemical oxygen demand (COD). Clear correlations between the results obtained from these multiple measurements were found, and a kinetic pathway for the degradation process was proposed. Within 150 min of solar irradiation, the TOC of a 10 ppm phenol solution in water was reduced by 95%-99%, thus demonstrating that SnO2:Gd nanoparticles are efficient visible light photocatalysts.

AB - Photocatalytic degradation of phenol with sol-gel prepared rare earth doped tin dioxide (SnO2) nanoparticles was reported. Gadolinium doped tin dioxide (SnO2:Gd) nanoparticles were found to absorb higher visible light compared to lanthanum, neodymium and cerium doped materials that were studied in detail. Photocatalytic degradation of phenol under artificial white light and sunlight in the presence of SnO2:Gd nanoparticles was studied with high performance liquid chromatography (HPLC), capillary electrophoresis (CE), total organic carbon (TOC) measurements and the determination of chemical oxygen demand (COD). Clear correlations between the results obtained from these multiple measurements were found, and a kinetic pathway for the degradation process was proposed. Within 150 min of solar irradiation, the TOC of a 10 ppm phenol solution in water was reduced by 95%-99%, thus demonstrating that SnO2:Gd nanoparticles are efficient visible light photocatalysts.

KW - organic by-products

KW - phenol photo-degradation

KW - rare earth dopants

KW - solar irradiation

KW - tin dioxide nanoparticles

UR - http://www.scopus.com/inward/record.url?scp=84949510119&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84949510119&partnerID=8YFLogxK

U2 - 10.1016/S1002-0721(14)60557-3

DO - 10.1016/S1002-0721(14)60557-3

M3 - Article

AN - SCOPUS:84949510119

VL - 33

SP - 1275

EP - 1283

JO - Journal of Rare Earths

JF - Journal of Rare Earths

SN - 1002-0721

IS - 12

ER -