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Photocatalytic degradation of 1,4-Benzoquinone in aqueous ZnO dispersions.

Abdollahi, Yadollah and Abdullah, Abdul Halim and Gaya, Umar I. and Ahmadzadeh, Saeid and Zakaria, Azmi and Shameli, Kamyar and Zainal, Zulkarnain and Jahangirian, Hossein and Yusof, Nor Azah (2012) Photocatalytic degradation of 1,4-Benzoquinone in aqueous ZnO dispersions. Journal of the Brazilian Chemical Society, 23 (2). pp. 236-240. ISSN 0103-5053; ESSN: 1678-4790

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The present paper reports the UV-assisted degradation of 1,4-benzoquinone in ZnO suspensions. The variables studied include the concentration of 1,4-benzoquinone, photocatalyst, pH and the total organic carbon. The concentration of 1,4-benzoquinone and residue organic carbon were measured using UV-Visible spectrophotometer and TOC analyzer, respectively. The results showed that 1,4-benzoquinone photodegradation was independent of pH. The photoactivity of ZnO was maximum at 1.0 g L-1 concentration and at 100 mg L-1 1,4-benzoquinone levels. Within pH 4-10 more than 80% of 1,4-benzoquinone can be removed. ZnO has demonstrated reusability in the process.

Item Type:Article
Keyword:Benzoquinone; Mineralization; Photocatalytic degradation; ZnO.
Faculty or Institute:Institute of Advanced Technology
Faculty of Science
Publisher:Sociedade Brasileira de Química
DOI Number:10.1590/S0103-50532012000200007
ID Code:18778
Deposited By: Norhaliza Zainal
Deposited On:19 Mar 2012 11:39
Last Modified:28 Sep 2015 16:52

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