CAJ | 학술논문

采用溶胶-凝胶法,以硝酸镧和钛酸丁酯为原料,选取活性炭纤维作为载体,制备了La、Fe共掺杂TiO 2/ACF复合材料,通过紫外灯照射,对甲醛气体进行光催化降解,考察材料的光催化活性.结果表明,适宜的La、Fe掺杂量能够提高TiO 2/活性炭纤维的光催化活性.当La的掺杂量为0．5％(摩尔分数),Fe的掺杂量为0．5％(摩尔分数),焙烧温度为350℃时,La、Fe共掺杂TiO 2/ACF光催化性能最佳,反应2 h 甲醛降解率达到98．9％.
채용용효-응효법,이초산란화태산정지위원료,선취활성탄섬유작위재체,제비료La、Fe공참잡TiO 2/ACF복합재료,통과자외등조사,대갑철기체진행광최화강해,고찰재료적광최화활성.결과표명,괄의적La、Fe참잡량능구제고TiO 2/활성탄섬유적광최화활성.당La적참잡량위0．5％(마이분수),Fe적참잡량위0．5％(마이분수),배소온도위350℃시,La、Fe공참잡TiO 2/ACF광최화성능최가,반응2 h 갑철강해솔체도98．9％.
La and Fe co-doping TiO 2/ACF composite photocatalyst was prepared by sol-gel method with ACF. The photocatalytic activity of the composite photocatalyst under ultraviolet light was evaluated by degradation of formaldehyde.The results showed that the photocatalytic activities of La and Fe co-doping TiO 2/ACF com-posite photocatalysts can be improved in appropriate amount.The photocatalystic activity of the La,Fe-TiO 2/ACF composite photocatalyst co-doped with 0.5mol% of La,0.5mol% of Fe and calcined under 350 ℃ was the best,the degradation rate of formaldehyde examined at two hours of the reaction was 98.9%.