Influence of carbon nano-dots in water on sonoluminescence

doi:10.1039/d1nr02194j

	Influence of carbon nano-dots in water on sonoluminescence
	Song, Dan 2,3; Xu, Wen 2,4,5; Luo, Man 1; Zhang, Mingjun 1; Wen, Hua 2,3; Cheng, Xingjia 2,3; Luo, Xiaobing 1; Wang, Zhibiao 1
刊名	NANOSCALE
	2021-06-29
ISSN号	2040-3364
DOI	10.1039/d1nr02194j
通讯作者	Xu, Wen(wenxu_issp@aliyun.com) ; Wang, Zhibiao(wangzb@cqmu.edu.cn)
英文摘要	Sonoluminescence (SL) occurs when acoustically induced oscillating bubbles in a liquid collapse. The SL from pure water normally generates ultraviolet to blue emission which is related to hydroxyl plasma formed in and around the bubbles. It is known that carbon nano-dots (CNDs) can serve as free radical captors, where the C-bonds can couple strongly with free radicals and form C-based functional groups. In this work, a SL experiment is conducted via placing CND aqueous solution (CNDAS) in the focal area of the SL apparatus. Unexpectedly and dramatically, it is found that the color of SL now turns orange, which is so bright that it can be seen even by the naked eye. By examining the CNDAS before and after the SL experiment, it is observed that the influence of CNDs on optical absorption, photoluminescence and SL is mainly achieved via coupling between the C-bonds in the CNDs and the free hydroxyl radicals generated during the processes of acoustically driven cavitation and SL. The interesting and important findings from this work demonstrate that the CNDs in water can modify significantly the SL effect. Thus, CNDs can provide a new test medium for studying and revealing the microscopic mechanism of the SL phenomenon.
资助项目	National Natural Science foundation of China[U206720039] ; National Natural Science foundation of China[U193010069] ; National Science foundation of China[81127901]
WOS关键词	GRAPHENE QUANTUM DOTS ; SINGLE-BUBBLE ; ULTRASOUND ; EMISSION ; IONS ; RECOMBINATION ; FLUORESCENCE ; CAVITATION ; EFFICIENCY ; RADICALS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000683438300001
资助机构	National Natural Science foundation of China ; National Science foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/124315]
专题	中国科学院合肥物质科学研究院
通讯作者	Xu, Wen; Wang, Zhibiao
作者单位	1.Chongqing Med Univ, Coll Biomed Engn, Key Lab Ultrasound Med & Engn, Chongqing 400010, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, HFIPS, Key Lab Mat Phys, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China 4.Yunnan Univ, Yunnan Key Lab Quantum Informat, Kunming 650000, Yunnan, Peoples R China 5.Yunnan Univ, Sch Phys & Astron, Kunming 650000, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Song, Dan,Xu, Wen,Luo, Man,et al. Influence of carbon nano-dots in water on sonoluminescence[J]. NANOSCALE,2021.
APA	Song, Dan.,Xu, Wen.,Luo, Man.,Zhang, Mingjun.,Wen, Hua.,...&Wang, Zhibiao.(2021).Influence of carbon nano-dots in water on sonoluminescence.NANOSCALE.
MLA	Song, Dan,et al."Influence of carbon nano-dots in water on sonoluminescence".NANOSCALE (2021).