Grass-derived carbon nanodots as a fluorescent-sensing platform for label-free detection of Cu (II) ions

被引：12

作者：

Khalid, Hira ^{[1
,2
]}

Khan, Muhammad Farooq ^{[3
]}

Ahmad, Bilal ^{[4
]}

Ismail, Muhammad ^{[5
]}

Zahid, Muhammad ^{[4
,6
]}

Ismail, Ahmed ^{[3
,4
]}

机构：

[1] Tianjin Univ, Sch Sci, Dept Chem, Tianjin Key Lab Mol Optoelect Sci, Tianjin 300072, Peoples R China

[2] Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China

[3] Univ Peshawar, Inst Chem Sci, Peshawar 25120, Pakistan

[4] Heilongjiang Univ, Key Lab Funct Inorgan Mat Chem, Minist Educ Peoples Republ China, Harbin 150080, Peoples R China

[5] North China Elect Power Univ, Coll Energy Dynam & Mech Engn, Beijing, Peoples R China

[6] Natl Univ Sci & Technol, Sch Nat Sci, Islamabad 44000, Pakistan

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2022年 / 33卷 / 08期

关键词：

QUANTUM DOTS; SELECTIVE HYDROGENATION; COPPER IONS; LIVE CELLS; PROBES; SENSOR;

D O I：

10.1007/s10854-022-07749-1

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Herein, carbon nanodots (CNDs) were facilely synthesized using grass as a carbon source by the reflux method. The as-synthesized CNDs were well characterized by UV-Vis spectroscopy, Fluorescence spectroscopy, XRD, FTIR, and SEM. The characterization results revealed that grass-derived CNDs showed strong absorption and fluorescence emission peak and are amorphous with the surface rich in carboxyl and hydroxyl groups. The average particle size is 20 nm with a narrow size distribution. The CNDs showed excellent fluorescent sensitivity and selectivity for the detection of Cu2+ ions with a limit of detection as low as 0.89 mu M with a linear detection range of 1-20 mu M offering a novel sensing platform for Cu2+ ion.

引用

页码：5626 / 5634

页数：9

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