摘要
采用水热法制备了结晶良好的ZnS纳米粒子,通过XRD、FT-IR、TEM、UV-Vis DRS等手段对所合成的ZnS粉体的结构、粒度和理化性能进行表征,并以亚甲基蓝为目标降解物,评价了ZnS粉体在紫外光和可见光下的光催化性能。研究结果表明,水热法制备的纳米ZnS为典型的六方晶系,粒径大致为10～20 nm,不论是在紫外光或可见光下对亚甲基蓝均具有优异的脱色率,呈现出良好的光催化性能。
Highly crystalline ZnS nanoparticle was prepared by hydrothermal method. Its structure, particle size and physicochemical properties were characterized by XRD, FT-IR, TEM and UV-Vis DRS. The photocatalytic activity for degradation of methylene blue was investigated under UV and visible-light irradiation, respectively. The primary results demonstrated that the synthesized powder of ZnS was due to hexagonal crystal system. Its particle size is about 10 - 20 nm. The nanoparticles exhibited excellent photocatalytic activity. Its decolour rate of methylene blue not only under UV but also under visible light irradiation is excellent.
出处
《广州化学》
CAS
2007年第2期7-12,共6页
Guangzhou Chemistry
基金
福建省教育厅项目(JB03134
JB04237)
关键词
ZNS
紫外光
可见光
降解
光催化
亚甲基蓝
ZnS, UV, visible-light, degradation, photocatalysis, methylene blue
