摘要
以工业氧化锌为原料应用氨浸法制备了具有光催化活性的纳米ZnO粉体,并利用X射线衍射仪(XRD)、透射电镜(TEM)和N2物理吸附(BET)等手段对所得样品进行了表征。进一步对其降解表面活性剂壬基酚聚氧乙烯醚(NPE-10)溶液的光催化性能进行了研究,考察了煅烧温度、煅烧时间、催化剂用量、溶液初始浓度等不同因素对其降解性能的影响。研究表明:在300℃下煅烧2 h所得纳米ZnO具有较小的粒径和较大的比表面积,在溶液初始浓度为50 mg/L,催化剂用量为0.1 g时具有比较好的光催化活性,在氙灯照射下,5 h降解率达到70%以上。
Nano - sized ZnO particles that have photo- catalytic action were prepared by ammonia impregnation method using technical grade ZnO as starting material. The product sample was characterized by XRD, TEM and BET methods. Further, the photo- catalytic performance of the nano- sized ZnO for the degradation of nonylphenol ethoxylate （NPE- 10） was studied. Impact of different factors, such as calcining temperature, calcining time, dosage of catalyst and initial concentration of NPE - 10 solution on the degradation performance were examined. Results showed that, when the calcining temperature is 300℃ for 2 h, the ZnO product obtained can have smaller particle size and bigger specific surface area. When the initial NPE concentration is 50 mg/L and the catalyst dosage is 0.1 g for 100 mL of the NPE - 10 solution, better photo- catalytic activity can be performed. Under the irradiation of xenon- light for 5 h, 70% degradation can be achieved.
出处
《日用化学工业》
CAS
CSCD
北大核心
2007年第1期16-19,共4页
China Surfactant Detergent & Cosmetics
基金
山西省国际合作资助项目(051012)
