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

Journal of the Brazilian Chemical Society

Yadollah Abdollahi²  Abdul H. Abdullah²  Umar I. Gaya¹  Saeid Ahmadzadeh¹  Azmi Zakaria²  Kamyar Shameli¹  Zulkarnain Zainal²  Hossein Jahangirian¹  Nor Azah Yusof¹ 

[1] ,Universiti Putra Malaysia Institute of Advanced Technology Advanced Materials and Nanotechnology LaboratorySelangor D. E.,Malaysia

关键词: photocatalytic degradation;    benzoquinone;    mineralization;    ZnO;   

DOI  :  10.1590/S0103-50532012000200007

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License