纳米Cu_2O/珍珠贝壳复合光催化材料的制备与表征  

PREPARATION AND CHARACTERIZATION OF NANO-Cu_2O/PEARL SHELL COMPOSITE PHOTOCATALYST

作　　者：邹晓兰[1,2] 朱校斌[1] 于艳卿[1,2] 李超峰[1,2] 李红[1,2] 王新亭[1] 周利[1] 郭书举[1] 

机构地区：[1]中国科学院海洋研究所,青岛266071 [2]中国科学院研究生院,北京100049

出　　处：《环境化学》2011年第8期1480-1485,共6页Environmental Chemistry

基　　金：国家863项目(2006AA06Z362);国家海洋局公益性项目(200905021-4)资助

摘　　要：以煅烧后的珍珠贝壳为载体,采用原位水解法制备出纳米Cu2O/珍珠贝壳复合光催化材料.通过活性大红染料B-3G的脱色实验对光催化材料的活性进行讨论,并采用XRD、SEM、EDS、FT-IR和UV-Vis对材料进行表征.结果表明,以1050℃煅烧的珍珠贝壳为载体制备的纳米Cu2O/珍珠贝壳复合材料的光催化活性最强.Cu2O颗粒产率高且呈椭球状,平均粒径为20 nm;水解负载过程中,Cu2O颗粒与珍珠贝壳载体间形成了新的化学键.纳米CuO/珍珠贝壳复合材料对紫外光及可见光均有良好的吸收.Nano-Cu2O/pearl shell composite photocatalysts were prepared through in-situ hydrolysis process with calcined pearl shells as carriers.Photocatalytic activities of these products were investigated by the decolorization of Reactive Red dye B-3G in solutions.These catalysts were characterized by XRD,SEM,EDS,FT-IR and UV-Vis.The experimental results show that the photocatalyst prepared with pearl shells calcined at 1050 ℃ has the highest photocatalytic activity.Loaded Cu2O particles,with an average diameter of 20 nm,are oval in shape.New chemical bonds have formed between Cu2O particles and pearl shell carriers during the in-situ hydrolysis process.Nano-Cu2O /pearl shell composite photocatalyst has good response to both ultraviolet and visible light.

关 键 词：珍珠贝壳 原位水解 纳米Cu2O 光催化 

分 类 号：O643.36[理学—物理化学]