Synthesis of a water-stable fluorescence CsPbBr3 perovskite by dual-supersaturated recrystallization method and tuning the fluorescence spectrum for selective detection of folic acid

荧光 化学 检出限 水溶液 过饱和度 无机化学 卤化物 选择性 光化学 材料科学 催化作用 物理化学 有机化学 色谱法 物理 量子力学
作者
Jinzhou Liu,Yan-Bo Fu,Ni Yang,Qiu-Lin Wen,Rong Sheng Li,Jian Ling,Qiue Cao
出处
期刊:Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy [Elsevier]
卷期号:306: 123586-123586
标识
DOI:10.1016/j.saa.2023.123586
摘要

As an excellent fluorescent material, cesium lead halide perovskite nanocrystals (PNCs) is rarely used for analytical purposes because the PNCs are unstable in polar solvents, especially water. Developing a new synthesis method to prepare water-stable PNCs makes it promising for the detection of analytes in aqueous solutions. Herein, by using the solubility difference of the precursors in different solvents, we successfully synthesized water-stable CsPbBr3 PNCs by a dual-supersaturated recrystallization method at room temperature. We also found that the fluorescence of the as-prepared CsPbBr3 PNCs could be quenched by some small organic molecules, such as folic acid (FA) and dopamine (DA). By using a chloride-induced anion exchange reaction method, the fluorescence emission peak of the CsPbBr3 PNCs could be tuned from 518 to 418 nm and the emission color changed from green to blue. The blue emission chloride-exchanged PNCs have a good selectivity for only FA and a good linear relationship is established between the fluorescence quenching rate of the PNCs and concentration of FA from 10.0 to 140.0 μM, with a limit of detection (LOD) of 0.9 μM. This work expanded the applications of PNCs in the field of analytical chemistry and also proposed a new strategy for improving selectivity by tuning the emission spectrum of a fluorescent probe.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
Lyn完成签到 ,获得积分10
1秒前
岳南希完成签到,获得积分20
4秒前
5秒前
winwzxy完成签到,获得积分20
9秒前
vicky发布了新的文献求助10
10秒前
11秒前
ccalvintan发布了新的文献求助10
17秒前
小金今天自律了吗完成签到,获得积分10
18秒前
璐璐完成签到 ,获得积分10
18秒前
ou应助vicky采纳,获得10
19秒前
orixero应助vicky采纳,获得10
19秒前
乐观无心完成签到,获得积分10
24秒前
26秒前
26秒前
29秒前
NexusExplorer应助dzll采纳,获得10
37秒前
keyangou完成签到,获得积分20
42秒前
starcatcher完成签到,获得积分10
45秒前
传奇3应助科研通管家采纳,获得30
46秒前
脑洞疼应助科研通管家采纳,获得10
46秒前
华仔应助科研通管家采纳,获得10
46秒前
46秒前
orixero应助科研通管家采纳,获得10
46秒前
上官若男应助科研通管家采纳,获得10
46秒前
情怀应助科研通管家采纳,获得30
46秒前
赘婿应助科研通管家采纳,获得10
46秒前
46秒前
斯文败类应助科研通管家采纳,获得10
46秒前
46秒前
48秒前
jjj发布了新的文献求助10
50秒前
大个应助starcatcher采纳,获得10
51秒前
小白吧完成签到 ,获得积分10
52秒前
rlnmoo完成签到,获得积分10
54秒前
Myano发布了新的文献求助10
54秒前
思源应助jjj采纳,获得10
58秒前
小易发布了新的文献求助10
1分钟前
香蕉觅云应助会飞的鱼采纳,获得30
1分钟前
壮观的夏蓉完成签到,获得积分10
1分钟前
1分钟前
高分求助中
Teaching Social and Emotional Learning in Physical Education 900
Plesiosaur extinction cycles; events that mark the beginning, middle and end of the Cretaceous 800
Recherches Ethnographiques sue les Yao dans la Chine du Sud 500
Two-sample Mendelian randomization analysis reveals causal relationships between blood lipids and venous thromboembolism 500
Chinese-English Translation Lexicon Version 3.0 500
Wisdom, Gods and Literature Studies in Assyriology in Honour of W. G. Lambert 400
薩提亞模式團體方案對青年情侶輔導效果之研究 400
热门求助领域 (近24小时)
化学 材料科学 医学 生物 有机化学 工程类 生物化学 纳米技术 物理 内科学 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 电极 光电子学 量子力学
热门帖子
关注 科研通微信公众号,转发送积分 2392479
求助须知:如何正确求助?哪些是违规求助? 2097021
关于积分的说明 5283553
捐赠科研通 1824591
什么是DOI,文献DOI怎么找? 909959
版权声明 559928
科研通“疑难数据库(出版商)”最低求助积分说明 486247