摘要
采用水热法制备了不同浓度Er掺杂WO_3纳米材料(WO_3:Er),用XRD、SEM对WO_3:Er纳米材料进行了表征。利用和紫外-可见分光光度计研究了不同掺杂浓度的WO_3:Er在紫外光照射下对亚甲基蓝(MB)光催化降解性能。结果表明,Er掺杂能有效调控WO_3纳米晶粒的生长,并提高WO_3纳米材料对MB的降解效果,掺杂浓度为4%时降解效果最好,文中对其机理和原因进行了分析。
WO3：Er nano materials were prepared using a Hydrothermal method.The nano materials obtained was characterized by X-ray diffraction,scanning electron microscopy and UV-vis analysis.A Methylene blue（MB）solution under UV irradiation was used to determine the photocatalytic activity of WO3：Er photocatalyst.The effect of WO3 with different doping concentration of Er on photocatalytic degradation of methylene blue under UV irradiation was investigated.Excellent photocatalytic degradation of a MB solution was observed using the WO3：Er nano materials under UV light.With the increase of Er concentration the photocatalytic activity of photocatalyst was increase; it may attribute to the increase of the high efficiency of photogenerated electron-hole pairs.
出处
《化工管理》
2018年第7期101-103,共3页
Chemical Engineering Management
关键词
三氧化钨
Er掺杂
亚甲基蓝
光催化
WO3
Er doped
Methylene blue
Photocatalytic degradation
