Photocatalytic degradation of 1,4-benzoquinone in aqueous ZnO dispersions

Photocatalytic degradation of 1,4-benzoquinone in aqueous ZnO dispersions

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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Bibliographic Details
Main Authors: Abdollahi,Yadollah, Abdullah,Abdul H., Gaya,Umar I., Ahmadzadeh,Saeid, Zakaria,Azmi, Shameli,Kamyar, Zainal,Zulkarnain, Jahangirian,Hossein, Yusof,Nor Azah
Format: Digital revista
Language:English
Published: Sociedade Brasileira de Química 2012
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532012000200007
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