CAJ | 학술논문

采用溶胶-凝胶法,以钛酸丁酯为钛源,分别以三乙醇胺和亚氨基二乙酸为水解抑制剂,合成了掺杂 SeO 2-3离子源不同含量的纳米 TiO 2,并在可见光范围内对孔雀石绿(MG)进行光催化活性评价。结果表明,SeO 2-3离子源掺杂能够有效地提高纳米 TiO 2的光催化性能,并且确定了不同条件下合成的纳米 TiO 2的最佳掺杂含量和反应条件。对掺杂的 TiO 2进行了紫外-可见漫反射光谱(UV-Vis-DRS)、傅里叶变换红外(IR)、X 射线粉末衍射(XRD)、扫描电镜(SEM)、透射电镜(TEM)、光电子能谱(XPS)以及氮物理等温吸附(BET)等系列表征,揭示了催化剂的表面性能、电子结构、脱水性能、吸附性能、结晶程度、晶相结构等多方面协同作用是 SeO 2-3离子源掺杂的 TiO 2具有最高的光催化活性的原因,该研究可能为新型高性能光催化材料的发展提供理论基础与应用支撑。
채용용효-응효법,이태산정지위태원,분별이삼을순알화아안기이을산위수해억제제,합성료참잡 SeO 2-3리자원불동함량적납미 TiO 2,병재가견광범위내대공작석록(MG)진행광최화활성평개。결과표명,SeO 2-3리자원참잡능구유효지제고납미 TiO 2적광최화성능,병차학정료불동조건하합성적납미 TiO 2적최가참잡함량화반응조건。대참잡적 TiO 2진행료자외-가견만반사광보(UV-Vis-DRS)、부리협변환홍외(IR)、X 사선분말연사(XRD)、소묘전경(SEM)、투사전경(TEM)、광전자능보(XPS)이급담물리등온흡부(BET)등계렬표정,게시료최화제적표면성능、전자결구、탈수성능、흡부성능、결정정도、정상결구등다방면협동작용시 SeO 2-3리자원참잡적 TiO 2구유최고적광최화활성적원인,해연구가능위신형고성능광최화재료적발전제공이론기출여응용지탱。
In this thesis,nano TiO 2 of different SeO 2 -3 sources doping concentration were fabricated by sol-gel method using butyl titanate as titanata source and triethanolamine or iminodiacetic acid as different hydrolysis inhibitors.During evaluate on the photocatalysis activity of these SeO 2 -3 ion sources doped-TiO 2 under visible light,we found that the photocatalytic activity of nano TiO 2 can be enhanced by SeO 2 -3 source doped ,and we determined the SeO 2 -3 doping contents and reaction conditions in which the synthesized TiO 2 had the highest photocatalysis activities.The resulting photocatalysts were characterized by UV-Vis,FT-IR,XRD,SEM,TEM, XPS and BET.To sum up,the modified surface property,electronic structures,dehydrated properties,absorp-tion properties,degree of crystallinity and crystalline structures caused synergetic contributions leading to the extraordinary activity of the SeO 2 -3 -doped -TiO 2 .This results can provide a theoretical basis and supporting for the development of new high-performance photocatalytic materials.