Abstract:

Di-(2-ethylhexyl) phthalate is a kind of organic pollutant widely existing in water environment in China. Di-(2-ethylhexyl) phthalate has been paid more attention due to its teratogenicity，mutagenicity and carcinogenicity.Tetrabutyl titanate is used as raw material，and copper(Ⅱ) phthalocyanine tetrasulfonate (CuPcTs) as sensitizer，the composite nano-photo-catalyst CuPcTs/TiO² has been prepared by hydrothermal method in-situ synthesis. The degradation of di-(2 -ethylhexyl) phthalate in water under visible light is studied in presence of the catalyst，CuPcTs/TiO². The results show that when the catalyst concentration is 400 mg/L，pH=5 and the initial mass concentration= 10.0 mg/L，the DEHP degradation rate reaches 93.6% .

Key words: di-(2-ethylhexyl) phthalate, photocatalytic degradation, copper (Ⅱ ) phthalocyanine tetrasulfonate, nano-titanium dioxide

摘要：

邻苯二甲酸二(2-乙基己基)酯(DEHP)是我国水环境中广泛存在的一种有机污染物,以其致畸性、致突变性、致癌性以及生殖毒性而引起广泛关注。以钛酸四丁酯为原料,四磺酸酞菁铜(CuPcTs)为敏化剂,采用水热法原位制备了CuPcTs/TiO2复合纳米光催化剂。在可见光照射下,用制备的CuPcTs/TiO²为催化剂对DEHP溶液进行了光催化降解实验,结果表明:在催化剂质量浓度为400 mg/L,pH为5,初始质量浓度为10 mg/L条件下,DEHP的降解率达到93.6%。

关键词: 邻苯二甲酸二(2-乙基己基)酯, 光催化降解, 四磺酸酞菁铜, 纳米二氧化钛

CLC Number: 

• X703