Activated carbon supported cobalt catalysts for advanced oxidation of organic contaminants in aqueous solution

Shukla, Pradeep R., Wang, Shaobin, Sun, Hongqui, Ang, H. Ming and Tadé, Moses (2010) Activated carbon supported cobalt catalysts for advanced oxidation of organic contaminants in aqueous solution. Applied Catalysis B: Environmental, 100 3-4: 529-534. doi:10.1016/j.apcatb.2010.09.006


Author Shukla, Pradeep R.
Wang, Shaobin
Sun, Hongqui
Ang, H. Ming
Tadé, Moses
Title Activated carbon supported cobalt catalysts for advanced oxidation of organic contaminants in aqueous solution
Journal name Applied Catalysis B: Environmental   Check publisher's open access policy
ISSN 0926-3373
1873-3883
Publication date 2010-10-20
Sub-type Article (original research)
DOI 10.1016/j.apcatb.2010.09.006
Open Access Status Not yet assessed
Volume 100
Issue 3-4
Start page 529
End page 534
Total pages 6
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Formatted abstract
A heterogeneous cobalt catalyst was prepared by impregnation of cobalt ion on an activated carbon (AC) and used to activate peroxymonosulphate (PMS) for advanced oxidation of phenol in aqueous solution. The Co/AC catalyst was characterised by several techniques such as XRD, EDS, SEM, and TGA. It was found that Co2O3 was the major form of Co species and was homogeneously distributed on the activated carbon surface. Co/AC exhibited high activity in oxidation of phenol with sulphate radicals and 100% decomposition and 80% TOC removal could be achieved in 60 min at the conditions of 500 ml phenol solution of 25 ppm, 0.1 g catalyst and 1 g peroxymonosulphate. The catalyst also exhibited stable performance after several rounds of regeneration. Several operational parameters such as catalyst and oxidant amount, temperature on the rate of oxidation were found to influence the phenol oxidation.

Research highlights
▶ Activated carbon (AC) shows both adsorption and activation of peroxymonosulphate. ▶ Co/AC exhibits comparable activity of heterogeneous phenol oxidation to homogeneous system. ▶ Co/AC also demonstrates highly stable performance in heterogeneous oxidation.
Keyword Activated carbon
Cobalt
Phenol
Advanced oxidation process
Water treatment
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemical Engineering Publications
 
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Created: Sat, 16 Aug 2014, 01:37:55 EST by Vicki Thompson on behalf of School of Chemical Engineering