| 查看: 611 | 回复: 2 | ||||
shuihuo2012铁虫 (小有名气)
|
[交流]
Graphene Quantum Dots Derived from Carbon Fibers
|
|
Graphene Quantum Dots Derived from Carbon Fibers Graphene quantum dots (GQDs), which are edge-boundnanometer-size graphene pieces, have fascinating optical and electronicproperties. These have been synthesized either by nanolithography or fromstarting materials such as graphene oxide (GO) by the chemical breakdownof their extended planar structure, both of which are multistep tediousprocesses. Here, we report that during the acid treatment and chemicalexfoliation of traditional pitch-based carbon fibers, that are both cheap andcommercially available, the stacked graphitic submicrometer domains of thefibers are easily broken down, leading to the creation of GQDs withdifferent size distribution in scalable amounts. The as-produced GQDs, in the size range of 1−4 nm, show two-dimensionalmorphology, most of which present zigzag edge structure, and are 1−3 atomic layers thick. The photoluminescence of the GQDscan be tailored through varying the size of the GQDs by changing process parameters. Due to the luminescence stability,nanosecond lifetime, biocompatibility, low toxicity, and high water solubility, these GQDs are demonstrated to be excellentprobes for high contrast bioimaging and biosensing applications. KEYWORDS: Graphene quantum dots, carbon fibers, zigzag edge, luminescence, imaging |
回复此楼» 收录本帖的淘帖专辑推荐
 先进材料 |
» 猜你喜欢
纺大化工学院（官方群）-院士团队招生-学生自由度高发展好-培养模式成熟
已经有0人回复
-
温州大学化材学院王娟课题组招生
已经有5人回复
-
金属材料论文润色/翻译怎么收费?
已经有161人回复
-
学院官方群-院士团队招生-学生自由度高-培养模式成熟已有10余名学生赴985海外深造
已经有0人回复
-
武汉纺织大学化工学院官方群-院士团队招生-学生自由度高-10余名学生赴985海外深造
已经有0人回复
-
南昌航空大学蒋华麟教授课题组招收化学、环境、碳达峰碳中和及相关专业硕士信息
已经有0人回复
-
湖北师范大学复试调剂
已经有0人回复
-
武汉纺织大学_化工学院官方调剂群-院士团队招生-学生自由度高-每届发展好
已经有0人回复
-
河北大学材料与化工专业研究生（专硕）招收调剂生
已经有0人回复
-
河北大学无机化学专业招收调剂生
已经有0人回复
-
济南大学国家优青课题组 2026 调剂招生来啦
已经有0人回复
» 本主题相关价值贴推荐，对您同样有帮助:
- materials letters 审稿意见大家帮忙看一下啊，谢谢
已经有17人回复
- 大牛王中林最新力作《Three-Dimensional Nanoarchitectures》
已经有689人回复
求索的鸿鹄
木虫 (著名写手)
- 应助: 32 (小学生)
- 金币: 9616.2
- 散金: 83
- 红花: 20
- 帖子: 1178
- 在线: 370.3小时
- 虫号: 1989579
- 注册: 2012-09-10
- 性别: GG
- 专业: 电化学
2楼2012-11-23 12:54:29
0.6
| 支持 |
3楼2012-11-23 14:09:53
