石墨
量子产额
碳纤维
微波食品加热
材料科学
荧光
热液循环
产量(工程)
烟灰
炭黑
氧化石墨
吸收(声学)
氧化物
硝酸
化学工程
纳米技术
核化学
分析化学(期刊)
有机化学
化学
燃烧
复合材料
复合数
冶金
光学
工程类
物理
天然橡胶
量子力学
作者
Qinlong Wang,Huzhi Zheng,Yijuan Long,Lingyan Zhang,Mei Gao,Wei Bai
出处
期刊:Carbon
[Elsevier]
日期:2011-08-01
卷期号:49 (9): 3134-3140
被引量:309
标识
DOI:10.1016/j.carbon.2011.03.041
摘要
Graphite oxide (GO), candle soot, conductive carbon black and lampblack were used to prepare fluorescent carbon dots (CDots) by heating under reflux in nitric acid. The CDots prepared from GO exhibited the highest quantum yield and narrowest emission of those produced. Microwave-assisted techniques were also used to synthesize CDots. Compared with conventional heating under reflux, microwave-assisted heating under reflux and a microwave–hydrothermal method both shortened the reaction time. CDots prepared using microwave-assisted techniques exhibited increased absorption, higher quantum yield and longer fluorescence lifetime than those prepared by conventional heating under reflux.
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