水面石油污染物的光催化降解

PHOTOCATALYTIC DECOMPOSITION OF CRUDE OIL ON WATER

制备了 漂浮负 载型 Ｔｉ Ｏ２ 光催 化剂 ，并 用 Ｘ Ｒ Ｄ ， Ｂ Ｅ Ｔ， Ｔ Ｅ Ｍ 和 Ｓ Ｅ Ｍ 等 方法 进行 了 表征．研究了 这类催 化剂对水 面石油污 染物的 光催化降 解，实验 结果表明 ，掺杂 Ｆｅ３ ＋ 的 Ｔｉ Ｏ２ 光催化 剂具有高的 光催化 活性，经高 压汞灯 照射８ ｈ ， 水面 原油降解 ７５ ％ ．

Buoyant cenosphere loaded TiO 2 photocatalysts were prepared and the nanosized TiO 2 particles were characterized by XRD, BET, TEM and SEM. The photocatalytic decomposition of crude oil contamination on water has been studied. Experimental results show that Fe 3+ doped TiO 2 catalyst has higher photoactivity than undoped TiO 2. After irradiation for 8 h under a high pressure mercury lamp, the decomposition rate of crude oil on water reaches about 75%.