摘要
以尿素和硝酸锌作为反应物,采用均匀沉淀法制备ZnO的前驱物,300℃焙烧制备ZnO颗粒,再将其分散在氧化石墨烯(GO)中制备ZnO/GO复合物,考察复合物在可见光下降解亚甲基蓝的光催化性能。当GO添加量为9%时,氙灯光照3h,对亚甲基蓝的降解率达到96.6%。XRD与SEM结果都显示,GO明显阻止了纳米ZnO颗粒的团聚。紫外-可见漫反射吸收光谱显示,相比单纯ZnO,ZnO/GO对可见光的响应明显增强。
The predecessor of ZnO nanoparticles was prepared by homogeneous precipitation method using urea and zinc nitrate as reactants. Under the calcination with 300℃, ZnO nanoparticles were received and then dispersed on the graphene oxide （GO）. The study of photocatalytic activity of the ZnO/GO composite showed, when the mass ratio of GO to ZnO was 9%, the degradation ratio of methylene blue was up to 96.6% under the irradiation of Xeon lamp for 3 h. The results of X-ray diffraction （XRD） and transmission electron microscopy （TEM） showed that GO prevented the reunion of ZnO nanoparticles. Compared with the pure ZnO, the characteristic absorption threshold of ZnO/GO appeared obvious red shift.
出处
《化工新型材料》
CAS
CSCD
北大核心
2015年第1期87-89,共3页
New Chemical Materials
基金
国家自然科学基金(21001090)
