安徽理工大学学报(自然科学版)
安徽理工大學學報(自然科學版)
안휘리공대학학보(자연과학판)
JOURNAL OF ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE)
2014年
3期
29-32
,共4页
SO2-4 /CeO2 -TiO2/HTLC%光催化剂%制备%性能
SO2-4 /CeO2 -TiO2/HTLC%光催化劑%製備%性能
SO2-4 /CeO2 -TiO2/HTLC%광최화제%제비%성능
SO2-4 /CeO2 -TiO2/HTLC%photocatalyst%preparation%performance
为利用TiO2作为光催化降解水中有机污染物,以铁铝水滑石为载体,以CeO2掺杂的TiO2为活性组分,制得光催化剂前体,再以SO2-4对其进行修饰,制得了SO2-4/CeO2-TiO2/HTLC 光催化剂。采用XRD、SEM、EDS 和UV-Vis DRS等手段对催化剂进行了表征;以甲基橙为模拟污染物,考察了催化剂样品的光催化性能。实验结果表明:CeO2掺杂TiO2粒子在可见光区吸光性能高于TiO2;SO2-4与CeO2-TiO2/HTLC有协同催化作用,SO2-4/CeO2-TiO2/HTLC光催化剂对可见光的吸收大大增强。经模拟日光照射2 h,SO2-4改性的15%( CeO2-TiO2)/HTLC催化剂对甲基橙的脱色率达到93%。
為利用TiO2作為光催化降解水中有機汙染物,以鐵鋁水滑石為載體,以CeO2摻雜的TiO2為活性組分,製得光催化劑前體,再以SO2-4對其進行脩飾,製得瞭SO2-4/CeO2-TiO2/HTLC 光催化劑。採用XRD、SEM、EDS 和UV-Vis DRS等手段對催化劑進行瞭錶徵;以甲基橙為模擬汙染物,攷察瞭催化劑樣品的光催化性能。實驗結果錶明:CeO2摻雜TiO2粒子在可見光區吸光性能高于TiO2;SO2-4與CeO2-TiO2/HTLC有協同催化作用,SO2-4/CeO2-TiO2/HTLC光催化劑對可見光的吸收大大增彊。經模擬日光照射2 h,SO2-4改性的15%( CeO2-TiO2)/HTLC催化劑對甲基橙的脫色率達到93%。
위이용TiO2작위광최화강해수중유궤오염물,이철려수활석위재체,이CeO2참잡적TiO2위활성조분,제득광최화제전체,재이SO2-4대기진행수식,제득료SO2-4/CeO2-TiO2/HTLC 광최화제。채용XRD、SEM、EDS 화UV-Vis DRS등수단대최화제진행료표정;이갑기등위모의오염물,고찰료최화제양품적광최화성능。실험결과표명:CeO2참잡TiO2입자재가견광구흡광성능고우TiO2;SO2-4여CeO2-TiO2/HTLC유협동최화작용,SO2-4/CeO2-TiO2/HTLC광최화제대가견광적흡수대대증강。경모의일광조사2 h,SO2-4개성적15%( CeO2-TiO2)/HTLC최화제대갑기등적탈색솔체도93%。
In order to degrade organic pollutants in water, SO2-4 /CeO2 -TiO2/HTLC photocatalyst was prepared, taking Fe-Al hydrotalcite as support, Cerium-doped TiO2 as the active component to prepare the photocatalyst precursor CeO2 -TiO2/LDOs, which is modified by soak method in H2 SO4 solution.The catalyst was character-ized by means of XRD, SEM, EDS and UV-Vis DRS.With methyl orange as model pollutant, the photocata-lytic performance of the catalysts was determined.Experimental results showed that the absorption of CeO2 -TiO2 particle for the visible light is stronger than TiO2; there is a synergistic effect between SO2-4 and CeO2 -TiO2/HTLC;and the absorption of SO2-4 /CeO2 -TiO2/HTLC photocatalyst for visible light is enhanced.The decolori-zation rate of modified SO2-4 /15%( CeO2 -TiO2 )/HTLC photocatalyst for methyl orange reaches 93%after irra-diation under simulated sunlight for 2 hours.