Synthesis, characterization and application of supported cobalt oxide natural light active photocatalyst

S. Sivasankaran, Bharathesh Kumar, A. Y. Naveenkumar

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Industrial revolution has increased levels of pollutants in the surroundings causing harm to aquatic life and drinking water. So in the present work, natural light active cobalt oxide photocatalyst was synthesized to treat waste water. Co3O4 powder and Co3O4 supported on ZrO ceramic substrate were prepared by sol–gel technique using cobalt nitrate as precursor. Co3O4 powder was calcined at different temperatures from 350 ºC–600 ºC and the optimum temperature was found to be 350 ºC. Hence cobalt oxide was deposited on ZrO at 350 ºC. Photocatalytic degradation of methylene blue (MB) dye was investigated by using Co3O4 supported on ZrO under natural sunlight irradiation. Characterization was done by using XRD, Zeta-particle size analyzer, BET and SEM-EDAX. XRD analysis showed that cobalt particles formed were in pure phase. The surface area of supported catalyst was found to be 37.42 m2/g and pore volume was 0.0078 cc/g. Zeta and particle size analysis revealed that the Co3O4 powder was neutral in charge and average particle size was found to be 747 nm. The concentration of MB was measured by UV-vis spectroscopy and degradation of 90% was observed after exposing it to natural light irradiation for 4 hrs. The kinetic study of degradation showed that the degradation followed first order kinetics.

Original languageEnglish
Pages (from-to)1853-1857
Number of pages5
JournalAdvanced Science Letters
Volume23
Issue number3
DOIs
Publication statusPublished - 01-03-2017
Externally publishedYes

Fingerprint

Photocatalyst
Cobalt
Photocatalysts
Particle Size
cobalt
Powders
Oxides
Degradation
Methylene Blue
Powder
oxide
Synthesis
Light
water
degradation
industrial revolution
particle size
pollutant
Irradiation
irradiation

All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Health(social science)
  • Mathematics(all)
  • Education
  • Environmental Science(all)
  • Engineering(all)
  • Energy(all)

Cite this

Sivasankaran, S. ; Kumar, Bharathesh ; Naveenkumar, A. Y. / Synthesis, characterization and application of supported cobalt oxide natural light active photocatalyst. In: Advanced Science Letters. 2017 ; Vol. 23, No. 3. pp. 1853-1857.
@article{38208c832adc45efb1bea070cf78f637,
title = "Synthesis, characterization and application of supported cobalt oxide natural light active photocatalyst",
abstract = "Industrial revolution has increased levels of pollutants in the surroundings causing harm to aquatic life and drinking water. So in the present work, natural light active cobalt oxide photocatalyst was synthesized to treat waste water. Co3O4 powder and Co3O4 supported on ZrO ceramic substrate were prepared by sol–gel technique using cobalt nitrate as precursor. Co3O4 powder was calcined at different temperatures from 350 ºC–600 ºC and the optimum temperature was found to be 350 ºC. Hence cobalt oxide was deposited on ZrO at 350 ºC. Photocatalytic degradation of methylene blue (MB) dye was investigated by using Co3O4 supported on ZrO under natural sunlight irradiation. Characterization was done by using XRD, Zeta-particle size analyzer, BET and SEM-EDAX. XRD analysis showed that cobalt particles formed were in pure phase. The surface area of supported catalyst was found to be 37.42 m2/g and pore volume was 0.0078 cc/g. Zeta and particle size analysis revealed that the Co3O4 powder was neutral in charge and average particle size was found to be 747 nm. The concentration of MB was measured by UV-vis spectroscopy and degradation of 90{\%} was observed after exposing it to natural light irradiation for 4 hrs. The kinetic study of degradation showed that the degradation followed first order kinetics.",
author = "S. Sivasankaran and Bharathesh Kumar and Naveenkumar, {A. Y.}",
year = "2017",
month = "3",
day = "1",
doi = "10.1166/asl.2017.8490",
language = "English",
volume = "23",
pages = "1853--1857",
journal = "Advanced Science Letters",
issn = "1936-6612",
publisher = "American Scientific Publishers",
number = "3",

}

Synthesis, characterization and application of supported cobalt oxide natural light active photocatalyst. / Sivasankaran, S.; Kumar, Bharathesh; Naveenkumar, A. Y.

In: Advanced Science Letters, Vol. 23, No. 3, 01.03.2017, p. 1853-1857.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Synthesis, characterization and application of supported cobalt oxide natural light active photocatalyst

AU - Sivasankaran, S.

AU - Kumar, Bharathesh

AU - Naveenkumar, A. Y.

PY - 2017/3/1

Y1 - 2017/3/1

N2 - Industrial revolution has increased levels of pollutants in the surroundings causing harm to aquatic life and drinking water. So in the present work, natural light active cobalt oxide photocatalyst was synthesized to treat waste water. Co3O4 powder and Co3O4 supported on ZrO ceramic substrate were prepared by sol–gel technique using cobalt nitrate as precursor. Co3O4 powder was calcined at different temperatures from 350 ºC–600 ºC and the optimum temperature was found to be 350 ºC. Hence cobalt oxide was deposited on ZrO at 350 ºC. Photocatalytic degradation of methylene blue (MB) dye was investigated by using Co3O4 supported on ZrO under natural sunlight irradiation. Characterization was done by using XRD, Zeta-particle size analyzer, BET and SEM-EDAX. XRD analysis showed that cobalt particles formed were in pure phase. The surface area of supported catalyst was found to be 37.42 m2/g and pore volume was 0.0078 cc/g. Zeta and particle size analysis revealed that the Co3O4 powder was neutral in charge and average particle size was found to be 747 nm. The concentration of MB was measured by UV-vis spectroscopy and degradation of 90% was observed after exposing it to natural light irradiation for 4 hrs. The kinetic study of degradation showed that the degradation followed first order kinetics.

AB - Industrial revolution has increased levels of pollutants in the surroundings causing harm to aquatic life and drinking water. So in the present work, natural light active cobalt oxide photocatalyst was synthesized to treat waste water. Co3O4 powder and Co3O4 supported on ZrO ceramic substrate were prepared by sol–gel technique using cobalt nitrate as precursor. Co3O4 powder was calcined at different temperatures from 350 ºC–600 ºC and the optimum temperature was found to be 350 ºC. Hence cobalt oxide was deposited on ZrO at 350 ºC. Photocatalytic degradation of methylene blue (MB) dye was investigated by using Co3O4 supported on ZrO under natural sunlight irradiation. Characterization was done by using XRD, Zeta-particle size analyzer, BET and SEM-EDAX. XRD analysis showed that cobalt particles formed were in pure phase. The surface area of supported catalyst was found to be 37.42 m2/g and pore volume was 0.0078 cc/g. Zeta and particle size analysis revealed that the Co3O4 powder was neutral in charge and average particle size was found to be 747 nm. The concentration of MB was measured by UV-vis spectroscopy and degradation of 90% was observed after exposing it to natural light irradiation for 4 hrs. The kinetic study of degradation showed that the degradation followed first order kinetics.

UR - http://www.scopus.com/inward/record.url?scp=85017693343&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85017693343&partnerID=8YFLogxK

U2 - 10.1166/asl.2017.8490

DO - 10.1166/asl.2017.8490

M3 - Article

AN - SCOPUS:85017693343

VL - 23

SP - 1853

EP - 1857

JO - Advanced Science Letters

JF - Advanced Science Letters

SN - 1936-6612

IS - 3

ER -