Solution combustion synthesis and physico-chemical properties of ultrafine CeO2 nanoparticles and their photocatalytic activity

R. Bakkiyaraj, G. Bharath, K. Hasini Ramsait, Ahmed Abdel-Wahab, Edreese H. Alsharaeh, Shen Ming Chen, M. Balakrishnan

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Ultrafine cerium oxide (CeO2) nanoparticles have been confirmed to be capable photocatalysts for environmental remediation because of their strong redox ability, long-term stability, nontoxicity, and cost effectiveness. CeO2 nanoparticles were successfully synthesized by a solution combustion method using cerium nitrate and urea. The physical, chemical, thermal and optical properties of the as-prepared samples were characterized using various analytical techniques. X-ray diffraction data confirm that the synthesized nanocrystalline CeO2 samples have cubic structure with an average grain size of 10, 8 and 19 nm corresponding to as-prepared, 300 and 600 °C annealed samples, respectively. The HRTEM results confirmed that the synthesized nanoparticles exhibit good polycrystalline nature with spherical ultrafine nanoparticles having size in the range of ∼9 nm. The UV/vis spectrum shows a maximum absorption at 294 nm and the band gap of CeO2 was tuned by adjusting the annealing temperature. In the PL spectra, a strong and broad emission band was observed at 425 nm due to the presence of a blue shift in the visible region. The photocatalytic activities of annealed CeO2 nanoparticles were investigated by photodegradation of methylene blue (MB) under UV light irradiation. It was found that the ultra-fine CeO2 nanoparticles exhibited better photocatalytic activity than that of already available commercial photocatalysts. Based on the investigation, these ultra-fine CeO2 nanoparticles possess adaptable potential applications for wastewater purification.

Original languageEnglish
Pages (from-to)51238-51245
Number of pages8
JournalRSC Advances
Volume6
Issue number56
DOIs
Publication statusPublished - 1 Jan 2016
Externally publishedYes

Fingerprint

Combustion synthesis
Chemical properties
Nanoparticles
Cerium
Photocatalysts
Methylene Blue
Photodegradation
Cost effectiveness
Ultrafine
Urea
Ultraviolet radiation
Purification
Nitrates
Wastewater
Energy gap
Thermodynamic properties
Optical properties
Physical properties
Irradiation
Annealing

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Bakkiyaraj, R., Bharath, G., Hasini Ramsait, K., Abdel-Wahab, A., Alsharaeh, E. H., Chen, S. M., & Balakrishnan, M. (2016). Solution combustion synthesis and physico-chemical properties of ultrafine CeO2 nanoparticles and their photocatalytic activity. RSC Advances, 6(56), 51238-51245. https://doi.org/10.1039/c6ra00382f

Solution combustion synthesis and physico-chemical properties of ultrafine CeO2 nanoparticles and their photocatalytic activity. / Bakkiyaraj, R.; Bharath, G.; Hasini Ramsait, K.; Abdel-Wahab, Ahmed; Alsharaeh, Edreese H.; Chen, Shen Ming; Balakrishnan, M.

In: RSC Advances, Vol. 6, No. 56, 01.01.2016, p. 51238-51245.

Research output: Contribution to journalArticle

Bakkiyaraj, R, Bharath, G, Hasini Ramsait, K, Abdel-Wahab, A, Alsharaeh, EH, Chen, SM & Balakrishnan, M 2016, 'Solution combustion synthesis and physico-chemical properties of ultrafine CeO2 nanoparticles and their photocatalytic activity', RSC Advances, vol. 6, no. 56, pp. 51238-51245. https://doi.org/10.1039/c6ra00382f
Bakkiyaraj, R. ; Bharath, G. ; Hasini Ramsait, K. ; Abdel-Wahab, Ahmed ; Alsharaeh, Edreese H. ; Chen, Shen Ming ; Balakrishnan, M. / Solution combustion synthesis and physico-chemical properties of ultrafine CeO2 nanoparticles and their photocatalytic activity. In: RSC Advances. 2016 ; Vol. 6, No. 56. pp. 51238-51245.
@article{4a0fff840d034e8a846b1d96df194aa9,
title = "Solution combustion synthesis and physico-chemical properties of ultrafine CeO2 nanoparticles and their photocatalytic activity",
abstract = "Ultrafine cerium oxide (CeO2) nanoparticles have been confirmed to be capable photocatalysts for environmental remediation because of their strong redox ability, long-term stability, nontoxicity, and cost effectiveness. CeO2 nanoparticles were successfully synthesized by a solution combustion method using cerium nitrate and urea. The physical, chemical, thermal and optical properties of the as-prepared samples were characterized using various analytical techniques. X-ray diffraction data confirm that the synthesized nanocrystalline CeO2 samples have cubic structure with an average grain size of 10, 8 and 19 nm corresponding to as-prepared, 300 and 600 °C annealed samples, respectively. The HRTEM results confirmed that the synthesized nanoparticles exhibit good polycrystalline nature with spherical ultrafine nanoparticles having size in the range of ∼9 nm. The UV/vis spectrum shows a maximum absorption at 294 nm and the band gap of CeO2 was tuned by adjusting the annealing temperature. In the PL spectra, a strong and broad emission band was observed at 425 nm due to the presence of a blue shift in the visible region. The photocatalytic activities of annealed CeO2 nanoparticles were investigated by photodegradation of methylene blue (MB) under UV light irradiation. It was found that the ultra-fine CeO2 nanoparticles exhibited better photocatalytic activity than that of already available commercial photocatalysts. Based on the investigation, these ultra-fine CeO2 nanoparticles possess adaptable potential applications for wastewater purification.",
author = "R. Bakkiyaraj and G. Bharath and {Hasini Ramsait}, K. and Ahmed Abdel-Wahab and Alsharaeh, {Edreese H.} and Chen, {Shen Ming} and M. Balakrishnan",
year = "2016",
month = "1",
day = "1",
doi = "10.1039/c6ra00382f",
language = "English",
volume = "6",
pages = "51238--51245",
journal = "RSC Advances",
issn = "2046-2069",
publisher = "Royal Society of Chemistry",
number = "56",

}

TY - JOUR

T1 - Solution combustion synthesis and physico-chemical properties of ultrafine CeO2 nanoparticles and their photocatalytic activity

AU - Bakkiyaraj, R.

AU - Bharath, G.

AU - Hasini Ramsait, K.

AU - Abdel-Wahab, Ahmed

AU - Alsharaeh, Edreese H.

AU - Chen, Shen Ming

AU - Balakrishnan, M.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Ultrafine cerium oxide (CeO2) nanoparticles have been confirmed to be capable photocatalysts for environmental remediation because of their strong redox ability, long-term stability, nontoxicity, and cost effectiveness. CeO2 nanoparticles were successfully synthesized by a solution combustion method using cerium nitrate and urea. The physical, chemical, thermal and optical properties of the as-prepared samples were characterized using various analytical techniques. X-ray diffraction data confirm that the synthesized nanocrystalline CeO2 samples have cubic structure with an average grain size of 10, 8 and 19 nm corresponding to as-prepared, 300 and 600 °C annealed samples, respectively. The HRTEM results confirmed that the synthesized nanoparticles exhibit good polycrystalline nature with spherical ultrafine nanoparticles having size in the range of ∼9 nm. The UV/vis spectrum shows a maximum absorption at 294 nm and the band gap of CeO2 was tuned by adjusting the annealing temperature. In the PL spectra, a strong and broad emission band was observed at 425 nm due to the presence of a blue shift in the visible region. The photocatalytic activities of annealed CeO2 nanoparticles were investigated by photodegradation of methylene blue (MB) under UV light irradiation. It was found that the ultra-fine CeO2 nanoparticles exhibited better photocatalytic activity than that of already available commercial photocatalysts. Based on the investigation, these ultra-fine CeO2 nanoparticles possess adaptable potential applications for wastewater purification.

AB - Ultrafine cerium oxide (CeO2) nanoparticles have been confirmed to be capable photocatalysts for environmental remediation because of their strong redox ability, long-term stability, nontoxicity, and cost effectiveness. CeO2 nanoparticles were successfully synthesized by a solution combustion method using cerium nitrate and urea. The physical, chemical, thermal and optical properties of the as-prepared samples were characterized using various analytical techniques. X-ray diffraction data confirm that the synthesized nanocrystalline CeO2 samples have cubic structure with an average grain size of 10, 8 and 19 nm corresponding to as-prepared, 300 and 600 °C annealed samples, respectively. The HRTEM results confirmed that the synthesized nanoparticles exhibit good polycrystalline nature with spherical ultrafine nanoparticles having size in the range of ∼9 nm. The UV/vis spectrum shows a maximum absorption at 294 nm and the band gap of CeO2 was tuned by adjusting the annealing temperature. In the PL spectra, a strong and broad emission band was observed at 425 nm due to the presence of a blue shift in the visible region. The photocatalytic activities of annealed CeO2 nanoparticles were investigated by photodegradation of methylene blue (MB) under UV light irradiation. It was found that the ultra-fine CeO2 nanoparticles exhibited better photocatalytic activity than that of already available commercial photocatalysts. Based on the investigation, these ultra-fine CeO2 nanoparticles possess adaptable potential applications for wastewater purification.

UR - http://www.scopus.com/inward/record.url?scp=84971574721&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84971574721&partnerID=8YFLogxK

U2 - 10.1039/c6ra00382f

DO - 10.1039/c6ra00382f

M3 - Article

VL - 6

SP - 51238

EP - 51245

JO - RSC Advances

JF - RSC Advances

SN - 2046-2069

IS - 56

ER -