CAJ | 학술논문

为使 TiO2能在可见光作用下发挥光催化作用，并易于从水中分离，将掺有稀土金属离子 Er3＋的上转换发光剂 Er3＋：YAlO3与 TiO2采用溶胶－凝胶法结合，再将其负载于聚氨酯海绵（PS）载体表面，制备 Er3＋：YAlO3／TiO2－ PS 光催化剂。利用响应面（RSM ）方法对光催化材料制备条件进行优化，根据中心组合设计方法设计出3因素5水平析因实验，以光催化剂对苯酚的降解率作为响应值，得到最佳的催化剂制备条件：在水热处理温度110～114℃、光催化剂中 TiO2质量浓度60～65 mg／L 、海绵／溶胶负载比20 g ／L 时苯酚降解率最佳，与实测结果相符。
위사 TiO2능재가견광작용하발휘광최화작용，병역우종수중분리，장참유희토금속리자 Er3＋적상전환발광제 Er3＋：YAlO3여 TiO2채용용효－응효법결합，재장기부재우취안지해면（PS）재체표면，제비 Er3＋：YAlO3／TiO2－ PS 광최화제。이용향응면（RSM ）방법대광최화재료제비조건진행우화，근거중심조합설계방법설계출3인소5수평석인실험，이광최화제대분분적강해솔작위향응치，득도최가적최화제제비조건：재수열처리온도110～114℃、광최화제중 TiO2질량농도60～65 mg／L 、해면／용효부재비20 g ／L 시분분강해솔최가，여실측결과상부。
In order to develop the high photocatalytic performance of TiO 2 under visible light and make it easy to be separated from the treated liquid ,a visible light response photocatalyst is prepared through doping of the upconversion luminescence agent Er3 + :YAlO3 with TiO2 ,and immobilizing Er3 + :YAlO3 /TiO2 on the surface of Polyurethane Sponge (PS) by use of sol‐gel method .Based on the surface response methodology (RSM ) ,an experiment is designed to assess the individual and interaction effects of the three operating parameters (hydrothermal treatment temperature ,TiO2 concentration ,and PS‐to‐TiO2 sol ratio ) on the efficiency of phenol removal .The corresponding optimum preparing conditions are 110 114 ℃ ,60 65 mg /L ,and 20 g/L .The measured efficiency of phenol removal is maximijed under these conditions .