Influence of zinc oxide nanoparticles in the nanofiltration of hazardous Congo red dyes

Nur Hanis Hayati Hairom, Abdul Wahab Mohammad, Abdul Amir H. Kadhum

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Zinc oxide (ZnO) nanoparticles were produced via a simple and green precipitation method under stirring conditions (ZnO-St) and under ultrasonic radiation (ZnO-Us). The nanoparticles properties were characterised with X-ray fluorescence (XRF), X-ray diffractometry (XRD) and transmission electron microscopy (TEM); and compared with commercial ZnO and no ZnO. Their influence in the nanofiltration (NF) of hazardous Congo red dyes was studied in order to provide the fundamental understanding in the interacting effect of ZnO and NF membranes. The membrane performances were significantly improved after the addition of ZnO in the dye solution in descending order as follows: ZnO-Us. >. ZnO-St. >. commercial ZnO. >. no ZnO. It is believed that the preparation method, agglomerations and the morphology of nanoparticles influence their interaction with dye molecules and membrane surfaces. Membrane characterisations using contact angle, X-ray fluorescence (XRF), Field Emission Scanning electron microscopy (FESEM) and Energy Dispersive X-ray Analysis (EDX) confirmed that ZnO nanoparticles have great potential for fouling mitigation in industrial NF application.

Original languageEnglish
Pages (from-to)907-915
Number of pages9
JournalChemical Engineering Journal
Volume260
DOIs
Publication statusPublished - 5 Jan 2015

Fingerprint

Zinc Oxide
Congo Red
Nanofiltration
Zinc oxide
dye
Coloring Agents
Dyes
zinc
oxide
Nanoparticles
membrane
Membranes
X-ray fluorescence
nanoparticle
Fluorescence
Nanofiltration membranes
X rays
Energy dispersive X ray analysis
Fouling
agglomeration

Keywords

  • Congo red dye
  • Fouling
  • Nanofiltration
  • Nanoparticles
  • Precipitation
  • Zinc oxide

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)
  • Industrial and Manufacturing Engineering
  • Environmental Chemistry

Cite this

Influence of zinc oxide nanoparticles in the nanofiltration of hazardous Congo red dyes. / Hairom, Nur Hanis Hayati; Mohammad, Abdul Wahab; Kadhum, Abdul Amir H.

In: Chemical Engineering Journal, Vol. 260, 05.01.2015, p. 907-915.

Research output: Contribution to journalArticle

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