Heterogeneous photodegradation of bisphenol A in water with titanium dioxide

Quimica nova

Gómez, Luisa F.¹  Sarria, Victor M.¹ 

[1] Universidad de los Andes, Bogotá, Colombia

关键词: photo degradation;    TiO2;    Bisphenol A.;   

DOI  :  10.1590/S0100-40422009000500015

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Bisphenol A (BPA) is a monomer used in epoxy resin and polycarbonate manufacture. This molecule is considered as an endocrine disruptor that causes different diseases. The human exposition to this non biodegrable substance is increasing in the time; in particular, water is contaminated by industrial remainder flow. In this article heterogeneous photo degradation of a solution of BPA in water solution using a catalytic photo reactor with UV light and titanium dioxide (TiO2) was evaluated. High performance liquid chromatography (HPLC) was used to analyze the photo degradation of BPA solutions. The influence of titanium dioxide amount, BPA concentration, reaction temperature and the catalyst state like suspension and immobilized were also determinated. The highest elimination of BPA was 83.2%, in 240 min, beginning with 0.05 mM of BPA and 100 mg/L of TiO2 in suspension.

【 授权许可】

CC BY