Decolourization of anionic dye by activated carbon-supported nano-zero valent iron (NZVI)

Research output: Contribution to journalArticle

Abstract

This study investigates the capability of activated carbon-supported nano-zero valent iron (AC-nZVI) to remediate the anionic dye (Acid Orange II). The supported nanoparticles (AC-nZVI) were synthesized by using chemical reduction method of Ferric Chloride Tetrahydrate and Sodium Borohydride, NaBH4 solutions. The absorbents of nZVI and AC-nZVI were characterized by using Brunnaer–Emmett–Teller (BET) surface area, Field Emission Scanning Electron Microscopy (FESEM), X-Ray Diffraction (XRD) and X-ray Photoelectron Spectroscopy with Auger Electron Spectroscopy (XPS-AES). Batch Tests were also conducted to delineate the effectiveness of adsorbent materials in removing Acid Orange II. Batch tests involved of five effects including dose, initial concentration, pH, kinetic and temperature. In initial concentration effect, AC-nZVI exhibits larger adsorption capacity (4.41 mg/g) compared to activated carbon (1.82 mg/g) due to the dispersion of nZVI particles on activated carbon particles, consequently providing more sites for adsorption. The results also revealed that the supported nZVI can be an effective absorbent to remove anionic dye wastewater.

Original languageEnglish
Pages (from-to)85-90
Number of pages6
JournalChemical Engineering Transactions
Volume73
DOIs
Publication statusPublished - 1 Jan 2019

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Activated carbon
Coloring Agents
Iron
Dyes
Adsorption
Acids
Auger electron spectroscopy
Field emission
Adsorbents
Wastewater
X ray photoelectron spectroscopy
Sodium
Nanoparticles
X ray diffraction
Scanning electron microscopy
Kinetics
Temperature
Acid Orange II

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Decolourization of anionic dye by activated carbon-supported nano-zero valent iron (NZVI). / Zarime, Nur Aishah; Wan Yaacob, Wan Zuhairi; Jamil, Habibah.

In: Chemical Engineering Transactions, Vol. 73, 01.01.2019, p. 85-90.

Research output: Contribution to journalArticle

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