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  4. 氮掺杂石墨烯负载的硫化镉空心球纳米复合材料的光催化性能

催化学报 , 2013, 34(11): 2138-2145. doi: 10.1016/S1872-2067(12)60641-X

氮掺杂石墨烯负载的硫化镉空心球纳米复合材料的光催化性能

米倩 1, , 陈带全 2, , 胡军成 3, , 黄正喜 4, , 李金林 5,

1.中南民族大学催化材料科学国家民委-教育部重点实验室,湖北武汉430074

2.中南民族大学催化材料科学国家民委-教育部重点实验室,湖北武汉430074

3.中南民族大学催化材料科学国家民委-教育部重点实验室,湖北武汉430074

4.中南民族大学催化材料科学国家民委-教育部重点实验室,湖北武汉430074

5.中南民族大学催化材料科学国家民委-教育部重点实验室,湖北武汉430074

基金项目:   the Natural Science Foundation of Hubei Province for Distinguished Young Investigator(2010CDA082)   国家重点基础研究发展计划(2011CB211704)   the National Natural Science Foundation of China(20803096,21073238)   国家自然科学基金(20803096,21073238)   湖北省杰出青年基金(2010CDA082).This work was supported by the National Basic Research Program of China(2011CB211704)  

关键词： 氮掺杂石墨烯 , 硫化镉 , 空心球 , 光催化

Nitrogen-doped graphene/CdS hollow spheres nanocomposite with enhanced photocatalytic performance

Qian Mi 1, , Daiquan Chen 2, , Juncheng Hu 3, , Zhengxi Huang 4, , Jinlin Li 5,

1.中南民族大学催化材料科学国家民委-教育部重点实验室,湖北武汉430074

2.中南民族大学催化材料科学国家民委-教育部重点实验室,湖北武汉430074

3.中南民族大学催化材料科学国家民委-教育部重点实验室,湖北武汉430074

4.中南民族大学催化材料科学国家民委-教育部重点实验室,湖北武汉430074

5.中南民族大学催化材料科学国家民委-教育部重点实验室,湖北武汉430074

Keywords： Nitrogen-doped graphene , Cadmium sulfide , Hollow spheres , Photocatalysis

通过无模板法一步合成了一种新型N掺杂石墨烯负载的CdS空心球复合材料.采用X射线衍射、透射电镜、红外光谱、紫外-可见光谱、N2吸附-脱附、荧光光谱和X射线光电子能谱等技术对该材料进行了表征,并在可见光照射下测试了其在降解亚甲基蓝和水杨酸中的光催化性能.结果表明,相对于氧化石墨烯负载硫化镉空心球和单独的硫化镉空心球,氮掺杂石墨烯负载的硫化镉空心球具有更高的光催化活性和稳定性.这是由于氮掺杂的石墨烯能充当优异的电子受体和传输体,从而抑制了载流子的复合.另外发现,羟基自由基是可见光下降解亚甲基蓝的主要活性物种.

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