摘要
通过稀土铒(Er)掺杂对锐钛矿TiO_(2)进行晶格缺陷调控,开发具有高催化活性的Er@R-TiO_(2)光催化剂,通过Raman光谱证明Er@R-TiO_(2)复合材料为锐钛矿相,FT-IR和PL光谱验证Er@R-TiO_(2)复合材料可以高效利用太阳光,增强其光催化性能。实验优化了Er@R-TiO_(2)光催化复合材料的掺杂物质的量比[n(Er)∶n(Ti)=1.5∶100.0],同时选取玫瑰红B染料模拟废水进行太阳光辐射(紫外光和可见光照射)光催化降解实验,评价Er@R-TiO_(2)光催化降解反应效率。经过90 min紫外光和240 min可见光照射后,Er@R-TiO_(2)光催化复合材料可以将玫瑰红B染料基本完全降解,降解率分别为99.5%和92.3%。
The development of a highly active photocatalyst,Er@R-TiO_(2),has been achieved through the regulation of lattice defects in anatase TiO_(2) doped with rare earth element Erbium(Er).Raman spectra analysis confirmed that the Er@R-TiO_(2) composite was in the anatase phase,while FT-IR and PL spectra demonstrate that the composite could efficiently utilize sunlight,enhancing its photocatalytic performance.The experiment on Er@R-TiO_(2) the dosage ratio of doped substances in photocatalytic composite materials has been optimized[n(Er)∶n(Ti)=1.5∶100.0].The photocatalytic degradation efficiency of the Er@R-TiO_(2) composite was evaluated using simulated wastewater containing rose red B dye and exposed to solar radiation(ultraviolet and visible light irradiation).After 90 min of ultraviolet light and 240 min of visible light irradiation,the Er@R-TiO_(2) photocat⁃alytic composite was able to completely degrade the rose red B dye,with degradation rates of 99.5%and 92.3%,respectively.
作者
龚蜜
章少琪
杨德
杨静
甘登峰
陈权
甄德帅
李乐
GONG Mi;ZHANG Shaoqi;YANG De;YANG Jing;GAN Dengfeng;CHEN Quan;ZHEN Deshuai;LI Le(College of Public Health,Hengyang Medical School,University of South China,Hengyang 421001,China;Fei County Da Tianzhuang Township Health Center,Linyi 273403,China;Hengyang Market Supervision Inspection and Testing Center,Hengyang 421001,China)
出处
《印染助剂》
CAS
2024年第1期22-25,共4页
Textile Auxiliaries
基金
湖南省教育厅科学研究项目(20C1600)
贵州省科技厅基础研究计划项目(黔科合基础-ZK[2022]一般551)
湖南省自然科学基金联合基金项目(2022JJ90022)
湖南省大学生创新创业训练计划项目(S202110555297,S202210555315)。
