应用化学
應用化學
응용화학
CHINESE JOURNAL OF APPLIED CHEMISTRY
2001年
1期
32-35
,共4页
李晓红%颜秀茹%张月萍%霍明亮%郭伟巍
李曉紅%顏秀茹%張月萍%霍明亮%郭偉巍
리효홍%안수여%장월평%곽명량%곽위외
TiO-/SnO2%包覆型催化剂%光催化降解%敌敌畏
TiO-/SnO2%包覆型催化劑%光催化降解%敵敵畏
TiO-/SnO2%포복형최화제%광최화강해%활활외
以SnCl4.Ti(OBu)4、氨水、乙醇为原料，采用活性层包覆法，制备出TiO2/SnO2复合光催化剂，并用IR、XRD、TEM和BET等手段对样品进行了表征.研究其对有机磷农药敌敌畏的光催化降解效果，与单一半导体催化剂SnO2、TiO2做了简单对比.结果表明：所制TiO2/SnO2样品为包覆型结构，由锐钛矿型TiO2金红石型SnO2组成，与SnO2及TiO2晶体粉末相比所制TiO2/SnO2包覆粒子光催化活性得到明显提高.
以SnCl4.Ti(OBu)4、氨水、乙醇為原料，採用活性層包覆法，製備齣TiO2/SnO2複閤光催化劑，併用IR、XRD、TEM和BET等手段對樣品進行瞭錶徵.研究其對有機燐農藥敵敵畏的光催化降解效果，與單一半導體催化劑SnO2、TiO2做瞭簡單對比.結果錶明：所製TiO2/SnO2樣品為包覆型結構，由銳鈦礦型TiO2金紅石型SnO2組成，與SnO2及TiO2晶體粉末相比所製TiO2/SnO2包覆粒子光催化活性得到明顯提高.
이SnCl4.Ti(OBu)4、안수、을순위원료，채용활성층포복법，제비출TiO2/SnO2복합광최화제，병용IR、XRD、TEM화BET등수단대양품진행료표정.연구기대유궤린농약활활외적광최화강해효과，여단일반도체최화제SnO2、TiO2주료간단대비.결과표명：소제TiO2/SnO2양품위포복형결구，유예태광형TiO2금홍석형SnO2조성，여SnO2급TiO2정체분말상비소제TiO2/SnO2포복입자광최화활성득도명현제고.
Nanoparticles of SnO2 coated with TiO2 have been prepared fromTi(OC4H9)4 and SnCl4.5H2O as precursors by an activated surface method. Their morphology and structures were investigated by IR, XRD, TEM and BET. The results indicated the nanometer TiO2/SnO2 was composed of anatase TiO2 and rutile SnO2. The TiO2/SnO2 showed a better catalytic activity than SnO2 and TiO2 alone in photocatalytic degradation of dichlorvos.
