摘要
以活性炭(AC)为载体,利用溶胶-凝胶工艺制备氧化钛(TiO2)溶胶,通过浸渍法制备负载型 TiO2／AC纳米光催化剂以及掺杂Fe3+和Cu2+的M-TiO2／AC纳米复合光催化剂。以紫外灯做光源,用制得的 TiO2／AC纳米光催化剂对苯酚溶液进行光催化氧化降解试验,并研究了掺杂Fe3+和Cu2+的M-TiO2／AC纳米复合光催化剂对苯酚的催化活性。结果表明,在紫外光条件下,TiO2／AC纳米光催化剂对苯酚的降解率达99％,较日光条件下高;掺杂Fe3+能提高M-TiO2／AC纳米复合光催化剂对苯酚的催化活性。
Titanium dioxide/activated carbon prepared by the sol gel method and a supported catalyst TiO2/AC prepared by impregnation method were used as a photocatalyst in the reaction of phenol decomposition in water under Uv-lamp radiation. The nano-photoeatalysts TiO2/AC and nanocomposite Cu^2＋ and Fe^3＋ doped M-TiO2/AC were discussed. The results showed that the nano-photocatalysts TiO2/AC have high photocatalytic activity for phenol concentration ;The total removal efficiency was 99 % under Uv-light radiation ;And the experiment of Fe^3＋-doped nanocomposite photoeatalysts M-TiO2/AC thin film showed the high activity compared with the un-doped one,while the Cu^2＋-doped method is not available for TiO2/ AC.
出处
《西北农林科技大学学报（自然科学版）》
CSCD
北大核心
2006年第3期78-82,共5页
Journal of Northwest A&F University(Natural Science Edition)
