石墨烯的微波法快速制备及其降解罗丹明B性能的研究  

Rapid preparation of graphene by microwave method and its degradation performance on rhodamine B

作　　者：向文丽[1] 徐媛[1] 祝菲霞[1] 司民真[1] 孙坤[1] 

机构地区：[1]楚雄师范学院材料制备及力学行为研究所,云南楚雄675000

出　　处：《云南大学学报（自然科学版）》2017年第4期573-578,共6页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金(11364001);楚雄师范学院校级科研机构建设发展专项项目(2015kyjg008)

摘　　要：以绿色、无毒的柠檬酸三钠和硼氢化钠为还原剂通过微波液相加热还原氧化石墨(GO)制备石墨烯(RGO),采用X射线衍射、紫外-可见吸收光谱、拉曼光谱、透射电镜对制备的RGO样品进行了表征,并以罗丹明B为目标降解物,研究了RGO在白光照射条件下的催化降解效果.研究结果表明:2种还原剂都可还原GO生成石墨烯,且硼氢化钠比柠檬酸三钠的还原程度高,所制备的石墨烯无序度更高;由柠檬酸三钠弱还原制备的石墨烯由于强大的吸附本领,其光催化降解效果最好.Using nontoxic green trisodium citrate and sodium borohydride as reducer, graphene has been prepared by microwave heating to reduce graphite oxide （GO）.X-ray diffraction （XRD）, UV Vis absorption spectrum,Raman spectroscope and transmission electronic election microscope （TEM） were used to characterize the sample prepared.Their catalytic degradation effect for degrading rhodamine B was investigated under the condition of white light illumination.The results indicate that Graphite oxide has been reduced by the two kinds of reducer. The graphene（RGO） reduction degree and disorder by sodium borohydride is higher than that of trisodium citrate. The photocatalytic degradation effect of RGO by trisodium citrate is best because of the strong adsorptive capacity.

关 键 词：氧化石墨 石墨烯 柠檬酸三钠 硼氢化钠 罗丹明B 

分 类 号：TG146.4[一般工业技术—材料科学与工程]