CAJ | 학술논문

半导体多相光催化氧化作为高级氧化技术之一,能处理多种污染物,特别对生物难降解有机污染物具有很好的氧化降解作用。本文研究了溶胶—凝胶法制备钙钛矿型LaFeO3/TiO2复合光催化剂,并利用XRD和紫外-可见光谱对其进行了表征和催化活性评价。结果表明：在实验条件为pH=1.0,复合LaFeO3浓度为0.2%,煅烧时间为2 h,煅烧温度600℃、光照时间为60 min时光催化剂对甲基橙溶液降解效果相对最好。
반도체다상광최화양화작위고급양화기술지일,능처리다충오염물,특별대생물난강해유궤오염물구유흔호적양화강해작용。본문연구료용효—응효법제비개태광형LaFeO3/TiO2복합광최화제,병이용XRD화자외-가견광보대기진행료표정화최화활성평개。결과표명：재실험조건위pH=1.0,복합LaFeO3농도위0.2%,단소시간위2 h,단소온도600℃、광조시간위60 min시광최화제대갑기등용액강해효과상대최호。
Heterogeneous photo catalytic oxidation by semiconductor catalyst was one of a few advanced oxidation processes.LaFeO3/ TiO2 as the light source in photo catalytic reaction were synthesized by sol-gel method,then adopting XRD and UV-Vis to text and to evaluate its photo catalytic activity.The result showed that the relative effectiveness of methyl orange solution decompounded was the best with pH=1.0,Fe3＋ concentration 0.2%,calcinations time 2 h,calcinations temperature 600 ℃,and illumination time 60 min.