工业水处理
工業水處理
공업수처리
INDUSTRIAL WATER TREATMENT
2015年
6期
79-82
,共4页
TiO2%溶胶-凝胶法%甲醛溶液%光催化活性%Cu-Ce
TiO2%溶膠-凝膠法%甲醛溶液%光催化活性%Cu-Ce
TiO2%용효-응효법%갑철용액%광최화활성%Cu-Ce
TiO2%sol-gel method%formaldehyde solution%photocatalytic activity%Cu-Ce
采用溶胶-凝胶法合成Cu-Ce/TiO2,以制备的Cu-Ce/TiO2对甲醛溶液的光催化降解率为评价指标,通过L16(45)正交实验对制备条件进行了优化,并对产物的结构进行了表征。结果表明:各因素对Cu-Ce/TiO2光催化降解效果的影响大小依次为 Cu-Ce 掺杂负载量>n(Cu)∶n(Ce)>烧结温度;最佳制备条件:Cu-Ce 掺杂负载量为3%, n(Cu)∶n(Ce)为1∶1,烧结温度为550℃;以最佳条件下制备的Cu-Ce/TiO2于可见光条件下光催化降解甲醛溶液,经过240 min后,甲醛降解率达到56.35%。
採用溶膠-凝膠法閤成Cu-Ce/TiO2,以製備的Cu-Ce/TiO2對甲醛溶液的光催化降解率為評價指標,通過L16(45)正交實驗對製備條件進行瞭優化,併對產物的結構進行瞭錶徵。結果錶明:各因素對Cu-Ce/TiO2光催化降解效果的影響大小依次為 Cu-Ce 摻雜負載量>n(Cu)∶n(Ce)>燒結溫度;最佳製備條件:Cu-Ce 摻雜負載量為3%, n(Cu)∶n(Ce)為1∶1,燒結溫度為550℃;以最佳條件下製備的Cu-Ce/TiO2于可見光條件下光催化降解甲醛溶液,經過240 min後,甲醛降解率達到56.35%。
채용용효-응효법합성Cu-Ce/TiO2,이제비적Cu-Ce/TiO2대갑철용액적광최화강해솔위평개지표,통과L16(45)정교실험대제비조건진행료우화,병대산물적결구진행료표정。결과표명:각인소대Cu-Ce/TiO2광최화강해효과적영향대소의차위 Cu-Ce 참잡부재량>n(Cu)∶n(Ce)>소결온도;최가제비조건:Cu-Ce 참잡부재량위3%, n(Cu)∶n(Ce)위1∶1,소결온도위550℃;이최가조건하제비적Cu-Ce/TiO2우가견광조건하광최화강해갑철용액,경과240 min후,갑철강해솔체도56.35%。
Cu-Ce/TiO2 has been prepared by sol-gel method. Taking the photocatalytic degradation rate of formalde-hyde solution as an evaluating indicator,the preparation conditions of Cu-Ce/TiO2 are optimized by L16(45) orthogonal experiment,and the structure of the product is characterized. The results show that the order of influence degree of each factor on the photocatalysis degradation of Cu-Ce/TiO2,is as follows:Cu-Ce-doped loading>n (Cu)∶n (Ce)>sintering temperature. The best preparation conditions are as follows:Cu-Ce-doped loading is 3%,n(Cu)∶n(Ce)=1∶1 and sintering temperature 550℃. The Cu-Ce/TiO2 prepared under the best preparation conditions has been used for the photocatalytic degradation of formaldehyde solution under visible light. The formaldehyde degradation rate reaches 56.35%in 240 min.