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Photocatalytic degradaton of 1,4-Benzoquinone in aqueous ZnO suspension.


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


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.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: https://doi.org/10.1590/S0103-50532012000200007
Publisher: Sociedade Brasileira de Química, SBQ
Keywords: Photocatalytic degradation; Benzoquinone; Mineralization; ZnO.
Depositing User: Nur Farahin Ramli
Date Deposited: 12 Jul 2013 08:32
Last Modified: 29 Sep 2015 01:12
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1590/S0103-50532012000200007
URI: http://psasir.upm.edu.my/id/eprint/25223
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