分别采用改进Hummers方法和水热还原法制备了氧化石墨烯(GO)和还原氧化石墨烯(RGO).GO和RGO经透射电子显微镜(TEM)、紫外-可见吸收光谱(UV-Vis)、红外光谱(IR)、荧光发射和激发光谱(PL、PLE)等技术手段进行了表征.荧光发射光谱显示,氧化石墨烯(GO)在可见光的激发下可以得到波长在600 ～ 800 nm范围内的宽谱近红外荧光.通过比较氧化石墨烯水热还原前后的光谱变化,发现氧化石墨烯近红外荧光起源于氧化石墨烯的表面含氧基团,如C=O、COOH.近红外荧光穿透性好、对生物组织损坏小,非常适合于生物成像,预示着氧化石墨烯在生物成像方面的应用潜力.
参考文献
| [1] | 张俊松;李海涛;唐亚文;陈煜;包建春;周益明;陆天虹.厚壁和薄壁碳纳米管载Pt催化剂制备和对甲醇氧化的电催化活性[J].应用化学,2008(3):290-294. |
| [2] | 王震遐;余礼平;马余刚;朱志远;何国伟;胡刚;陈一.超声波处理高序石墨合成碳纳米结构[J].物理学报,2002(7):1571-1574. |
| [3] | 张川洲;谭辉;毛燕;李刚;韩冬雪;牛利.发光碳量子点的合成、性质和应用[J].应用化学,2013(4):367-372. |
| [4] | Geim AK;Novoselov KS.The rise of graphene[J].Nature materials,20073(3):183-191. |
| [5] | Gan, Z.X.;Xiong, S.J.;Wu, X.L.;He, C.Y.;Shen, J.C.;Chu, P.K..Mn~(2+)-bonded reduced graphene oxide with strong radiative recombination in broad visible range caused by resonant energy transfer[J].Nano letters,20119(9):3951-3956. |
| [6] | Gokus, T.;Nair, R.R.;Bonetti, A.;B?hmler, M.;Lombardo, A.;Novoselov, K.S.;Geim, A.K.;Ferrari, A.C.;Hartschuh, A..Making graphene luminescent by oxygen plasma treatment[J].ACS nano,200912(12):3963-3968. |
| [7] | Yizhong Lu;Yuanyuan Jiang;Wentao Wei.Novel blue light emitting graphene oxide nanosheets fabricated by surface functionalization[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,20127(7):2929-2934. |
| [8] | Dengyu Pan;Jingchun Zhang;Zhen Li;Minghong Wu.Hydrothermal Route for Cutting Graphene Sheets into Blue-Luminescent Graphene Quantum Dots[J].Advanced Materials,20106(6):734-738. |
| [9] | Mei, Q.;Zhang, K.;Guan, G.;Liu, B.;Wang, S.;Zhang, Z..Highly efficient photoluminescent graphene oxide with tunable surface properties[J].Chemical communications,201039(39):7319-7321. |
| [10] | Goki Eda;Yun-Yue Lin;Cecilia Mattevi;Hisato Yamaguchi;Hsin-An Chen;I-Sheng Chen;Chun-Wei Chen;Manish Chhowalla.Blue Photoluminescence from Chemically Derived Graphene Oxide[J].Advanced Materials,20104(4):505-509. |
| [11] | Zhijun Guo;Shaofei Wang;Gang Wang.Effect of oxidation debris on spectroscopic and macroscopic properties of graphene oxide[J].Carbon: An International Journal Sponsored by the American Carbon Society,2014:203-211. |
| [12] | Bo Chai;Jing Li;Qian Xu;Ke Dai.Facile synthesis of reduced graphene oxide/WO_3 nanoplates composites with enhanced photocatalytic activity[J].Materials Letters,2014Apr.1(Apr.1):177-181. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%