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Yongfeng Liu
Researcher at Chongqing University
Publications - 20
Citations - 366
Yongfeng Liu is an academic researcher from Chongqing University. The author has contributed to research in topics: Quantum dot & Chemistry. The author has an hindex of 6, co-authored 12 publications receiving 196 citations. Previous affiliations of Yongfeng Liu include Umeå University.
Papers
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Journal ArticleDOI
All-inorganic CsPbBr3 perovskite quantum dots as a photoluminescent probe for ultrasensitive Cu2+ detection
Yongfeng Liu,Xiaosheng Tang,Tao Zhu,Ming Deng,Iroegbu Paul Ikechukwu,Wei Huang,Guolu Yin,Yongzhong Bai,Dingrong Qu,Xianbin Huang,Feng Qiu +10 more
TL;DR: In this paper, the photoluminescence (PL) intensity of CsPbBr3 PQDs is significantly quenched within several seconds after the addition of Cu2+ due to effective electron transfer from the PQD to the added Cu2+, which is experimentally verified via analyzing absorption spectra and PL decay lifetime.
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Nitrogen doped graphene quantum dots as a fluorescent probe for mercury(II) ions
Yongfeng Liu,Xiaosheng Tang,Ming Deng,Yulong Cao,Yujia Li,Hua Zheng,Fuhui Li,Fabin Yan,Tianyi Lan,Leilei Shi,Lei Gao,Ligang Huang,Tao Zhu,Hao Lin,Yongzhong Bai,Dingrong Qu,Xianbin Huang,Feng Qiu +17 more
TL;DR: A highly selective fluorescent probe for Hg2+ that consists of nitrogen doped graphene quantum dots (NGQDs) that are nearly spherical in shape, have an average diameter of 2.7 nm and excitation-independent emission and blue fluorescence is quenched by Hg1+ due to both dynamic and static quenching.
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Luminescent AIZS-GO nanocomposites as fluorescent probe for detecting copper(II) ion
Yongfeng Liu,Ming Deng,Ming Deng,Xiaosheng Tang,Tao Zhu,Zhigang Zang,Xiaofeng Zeng,Shuai Han +7 more
TL;DR: In this paper, a selective copper-II sensor based on graphene oxide (GO) modified Ag-In-Zn-S (AIZS) quantum dots (QDs) was proposed.
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The synthesis of water-dispersible zinc doped AgInS 2 quantum dots and their application in Cu 2+ detection
TL;DR: In this paper, a facile and effective method based on mini-emulsion/solvent evaporation technique was designed to synthesize water-soluble zinc-doped AgInS 2 (AIZS) quantum dots stabilized by dodecyltrimethylammonium bromide (DTAB).
Journal ArticleDOI
Selective and sensitive detection of copper(II) based on fluorescent zinc-doped AgInS2 quantum dots
Yongfeng Liu,Tao Zhu,Ming Deng,Xiaosheng Tang,Shuai Han,Anping Liu,Yongzhong Bai,Dingrong Qu,Xianbin Huang,Feng Qiu +9 more
TL;DR: In this article, hydrophobic zinc-doped AgInS2 (AIZS) quantum dots (QDs) are synthesized by hot-injection method, and then transferred into water-dispersible by sodium dodecyl sulfate (SDS) via mini-emulsion/solvent evaporation technique.