Solar photocatalytic degradation of hazardous Congo red using low-temperature synthesis of zinc oxide nanoparticles

Chin Boon Ong, Abdul Wahab Mohammad, Rosiah Rohani, Muneer M. Ba-Abbad, Nur Hanis Hayati Hairom

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

A simple sol-gel method at low temperature was used to prepare zinc oxide (ZnO) nanoparticles. The ZnO nanoparticles which were prepared via different solvents such as water, methanol and ethanol were characterized with different techniques such as X-ray-diffraction (XRD), Brunauer-Emmett-Teller (BET), ultraviolet-visible (UV-vis) spectrometry and field emission scanning electron microscopy (FESEM). The XRD results revealed that ZnO has a hexagonal structure with average crystallize size of 23.6. nm, 20.9. nm and 14.2. nm for water, methanol and ethanol based solvent respectively. The photocatalytic activities of ZnO samples were evaluated based on the removal of Congo red (CR) in aqueous solution under solar radiation. Effect of reaction time, pH, and loading of ZnO on degradation of CR was investigated, and the degradation kinetic of CR was also studied.

Original languageEnglish
JournalProcess Safety and Environmental Protection
DOIs
Publication statusAccepted/In press - 25 Jan 2016

Fingerprint

Zinc Oxide
Congo Red
Zinc oxide
zinc
oxide
Nanoparticles
Degradation
degradation
Methanol
methanol
ethanol
Ethanol
Temperature
X-ray diffraction
X ray diffraction
Water
Solar radiation
Field emission
Spectrometry
Sol-gel process

Keywords

  • Congo red
  • Low-temperature synthesis
  • Nanoparticles
  • Solar photocatalytic
  • Zinc oxide

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Safety, Risk, Reliability and Quality
  • Environmental Engineering
  • Environmental Chemistry

Cite this

Solar photocatalytic degradation of hazardous Congo red using low-temperature synthesis of zinc oxide nanoparticles. / Ong, Chin Boon; Mohammad, Abdul Wahab; Rohani, Rosiah; Ba-Abbad, Muneer M.; Hairom, Nur Hanis Hayati.

In: Process Safety and Environmental Protection, 25.01.2016.

Research output: Contribution to journalArticle

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AU - Hairom, Nur Hanis Hayati

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