A review of integrated photocatalyst adsorbents for wastewater treatment

N. Yahya, F. Aziz, N. A. Jamaludin, M. A. Mutalib, A. F. Ismail, W. N. Salleh, J. Jaafar, N. Yusof, Norasikin Ahmad Ludin

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Photocatalysis has the best potential to replace the conventional wastewater treatment technology due to its utilization of visible light to photo-degrade organic and inorganic contaminants. However, when applied in slurry form, agglomeration of nanoparticle will lead to serious decrease in photocatalytic performance due to hinderance effect. By combining the photocatalyst and adsorbents, which is designated as integrated photocatalyst adsorbent (IPCA), an adsorbent material which also degrades toxic organic compounds in the presence of UV/visible light irradiation could be produced. The compound does not only preserve all the interesting characteristics of both individual components, but also overcomes serious drawbacks, such as low absorptivity, rapid recombination of photogenerated electrons and hinderance effect of photocatalyst when applied in slurry form. There are several criteria that must be obeyed by the absorbent material used such as high absorption capacity to target compound, reasonable transparency to UV-vis light, high surface area, inhibition of photocatalyst leaching and good stability with dispersing solvent. In this review article, the authors presented an overview on the application of photocatalyst, adsorbents and integrated photocatalyst adsorbents for wastewater treatment. Moreover, the discussions were also focused on the major adsorbent which has been integrated with photocatalyst such as carbon, clays, zeolite matrix materials and others. Additionally, the mechanisms of the adsorption of emerging organic contaminants with adsorbents in IPCA were also discussed to clearly understand the possible interactions between organic contaminants and IPCA. Outlook on IPCA study were also discussed to further broaden the prospective of this technology.

Original languageEnglish
Pages (from-to)7411-7425
Number of pages15
JournalJournal of Environmental Chemical Engineering
Volume6
Issue number6
DOIs
Publication statusPublished - 1 Dec 2018

Fingerprint

Photocatalysts
Wastewater treatment
Adsorbents
slurry
pollutant
agglomeration
transparency
zeolite
recombination
organic compound
irradiation
surface area
leaching
adsorption
clay
electron
Impurities
matrix
carbon
wastewater treatment

Keywords

  • Adsorbents
  • Integrated photocatalyst adsorbents
  • Perovskite
  • Photocatalyst
  • Wastewater

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Waste Management and Disposal
  • Pollution
  • Process Chemistry and Technology

Cite this

A review of integrated photocatalyst adsorbents for wastewater treatment. / Yahya, N.; Aziz, F.; Jamaludin, N. A.; Mutalib, M. A.; Ismail, A. F.; Salleh, W. N.; Jaafar, J.; Yusof, N.; Ahmad Ludin, Norasikin.

In: Journal of Environmental Chemical Engineering, Vol. 6, No. 6, 01.12.2018, p. 7411-7425.

Research output: Contribution to journalArticle

Yahya, N, Aziz, F, Jamaludin, NA, Mutalib, MA, Ismail, AF, Salleh, WN, Jaafar, J, Yusof, N & Ahmad Ludin, N 2018, 'A review of integrated photocatalyst adsorbents for wastewater treatment', Journal of Environmental Chemical Engineering, vol. 6, no. 6, pp. 7411-7425. https://doi.org/10.1016/j.jece.2018.06.051
Yahya, N. ; Aziz, F. ; Jamaludin, N. A. ; Mutalib, M. A. ; Ismail, A. F. ; Salleh, W. N. ; Jaafar, J. ; Yusof, N. ; Ahmad Ludin, Norasikin. / A review of integrated photocatalyst adsorbents for wastewater treatment. In: Journal of Environmental Chemical Engineering. 2018 ; Vol. 6, No. 6. pp. 7411-7425.
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