Solar photocatalytic and surface enhancement of ZnO/rGO nanocomposite

Degradation of perfluorooctanoic acid and dye

Chin Boon Ong, Abdul Wahab Mohammad, Law Yong Ng, Ebrahim Mahmoudi, Sepehr Azizkhani, Nur Hanis Hayati Hairom

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In this work, ZnO/rGO nanocomposites (NCs) were synthesized through a low temperature sol-gel method. Zinc oxide decorated on graphene sheets could provide surface enhancement and hinder the rapid recombination rate of electron hole pairs that occur during a photocatalysis process. It has been observed that the loading of ZnO decorated on graphene sheets is important in controlling the morphologies and surface enhancement of ZnO/rGO NCs. Field Emission Scanning Electron Microscope (FESEM) micrographs reveal that spherical shape and hexagonal-based nanopyramid of ZnO can be formed at low and high loading of ZnO, respectively. NCs showed excellent performance for degradation of perfluorooctanoic acid (PFOA) and methyl orange in aqueous solution under solar irradiation. Herein, mechanisms for the formation of different shapes of ZnO nanostructures decorated on graphene and their enhancement towards surface and photoactivity were discussed in details.

Original languageEnglish
JournalProcess Safety and Environmental Protection
DOIs
Publication statusAccepted/In press - 25 Jan 2017

Fingerprint

perfluorooctanoic acid
Graphite
Graphene
Nanocomposites
dye
Coloring Agents
Dyes
Degradation
degradation
Acids
acid
Zinc Oxide
electron
Photocatalysis
Zinc oxide
Field emission
Sol-gel process
recombination
Nanostructures
irradiation

Keywords

  • Methyl orange
  • Nanocomposites
  • Perfluorooctanoic acid
  • Photocatalytic
  • Solar photocatalysis
  • ZnO/rGO

ASJC Scopus subject areas

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

Cite this

Solar photocatalytic and surface enhancement of ZnO/rGO nanocomposite : Degradation of perfluorooctanoic acid and dye. / Ong, Chin Boon; Mohammad, Abdul Wahab; Ng, Law Yong; Mahmoudi, Ebrahim; Azizkhani, Sepehr; Hayati Hairom, Nur Hanis.

In: Process Safety and Environmental Protection, 25.01.2017.

Research output: Contribution to journalArticle

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AU - Azizkhani, Sepehr

AU - Hayati Hairom, Nur Hanis

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