紫外光辐照氧化碳微球-中国材料进展

文章信息/Info

作者:: 李莎; 杨永珍; 段菲菲; 张燕; 刘旭光; 许并社; （1. 太原理工大学新材料界面与工程教育部重点实验室，山西太原 030024）
（2. 太原理工大学化学化工学院，山西太原 030024）
（3. 太原理工大学材料科学与工程学院，山西太原 030024）

Author(s):: LI Sha1; 2; YANG Yongzhen1; 3; DUAN Feifei1; 2; ZHANG Yan1; 2; LIU Xuguang1; 2; XU Bingshe; (1. Key Laboratory of Interface Science and Engineering in Advanced Materials of Ministry of Education,
Taiyuan University of Technology, Taiyuan 030024, China)
(2. College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China)
(3. College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China)

摘要:: 采用紫外光辐照不同氧化剂体系对碳微球（CMSs）表面进行化学修饰，引入含氧官能团以改善其表面惰性。利用场发射扫描电子显微镜对样品进行形貌分析，通过红外光谱、热重分析、X射线光电子能谱和酸碱滴定法对处理后样品表面的含氧官能团进行定性和定量分析，并观察了氧化后CMSs在乙醇中的分散性。结果表明：UV辐照下3种氧化体系（H2O2 ，H2O2+HNO3，H2O2+H2SO4）修饰的CMSs表面均引入了含O官能团；相对而言，UV/H2O2+H2SO4体系氧化处理的CMSs表面引入的含氧官能团总量最多，这为碳材料提供了一种新型高效的氧化技术。

Abstract:: Carbon microspheres (CMSs) were modified to improve their surface activity using different oxidant systems under ultraviolet (UV) irradiation. The morphologies of all samples were characterized by field emission scanning electron microscopy, and the functional groups introduced onto the surface of CMSs were analyzed qualitatively and quantitatively by Fourier transformation infrared spectrometry, thermogravimetry, Xray photoelectronic spectrometry and acidbase titration. The dispersion of oxidized CMSs in ethanol was also observed. The results show that oxygencontaining groups were introduced onto the surface of CMSs in the three oxidative systems (H2O2, H2O2/HNO3, H2O2/H2SO4) under UV irradiation. The CMSs oxidized by UV/H2O2+H2SO4 showed the most amounts of oxygencontaining groups, which give a efficient method to oxidize carbon materials.