CAJ | 학술논문

通过光降解甲基橙实验,研究了利用溶胶-凝胶法制备出的黑电气石/TiO2/稀土离子(Nd3+,Gd3+)复合材料的光催化效率.探讨了黑电气石掺量、稀土离子(Nd3+,Gd3+)掺量和甲基橙初始浓度对降解率的影响,并分析了黑电气石和稀土离子对光催化反应的作用机理.结果表明,黑电气石和稀土元素的加入显著提高了 TiO2的光催化效率,复合材料对甲基橙的最高降解率比纯 TiO2提高了约26%.Nd3+、Gd3+与黑电气石的最佳掺量分别为0.15%、0.10%和1.5%.
통과광강해갑기등실험,연구료이용용효-응효법제비출적흑전기석/TiO2/희토리자(Nd3+,Gd3+)복합재료적광최화효솔.탐토료흑전기석참량、희토리자(Nd3+,Gd3+)참량화갑기등초시농도대강해솔적영향,병분석료흑전기석화희토리자대광최화반응적작용궤리.결과표명,흑전기석화희토원소적가입현저제고료 TiO2적광최화효솔,복합재료대갑기등적최고강해솔비순 TiO2제고료약26%.Nd3+、Gd3+여흑전기석적최가참량분별위0.15%、0.10%화1.5%.
In this paper, the effect of composite materials prepared by sol-gel method was studied by the photodegradation of methyl orange experiments. This research discussed the impact of the doping amount of schorl, rare-earth ions (Nd3+, Gd3+) and the concentration of methyl orange on the degradation rate, and analyzed the mechanism of schorl and rare-earth ion on photocatalytic reaction. The results indicated that photocatalytic efficiency could improve significantly by adding schorl and rare-earth element. And the highest degradation rate of composite materials could improve by approximately 26% than pure TiO2. The optimal doping amount of Nd3+, Gd3+, schorl were 0.15%, 0.10%, 1.5%, respectively.