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

Hira Khalid; Muhammad Farooq Khan; Bilal Ahmad; Muhammad Ismail; Muhammad Zahid; Ahmed Ismail

doi:10.1007/s10854-022-07749-1

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

Hira Khalid, Muhammad Farooq Khan, Bilal Ahmad, Muhammad Ismail, Muhammad Zahid^*, Ahmed Ismail^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

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 μM with a linear detection range of 1–20 μM offering a novel sensing platform for Cu²⁺ ion.

Original language	English
Pages (from-to)	5626-5634
Number of pages	9
Journal	Journal of Materials Science: Materials in Electronics
Volume	33
Issue number	8
DOIs	https://doi.org/10.1007/s10854-022-07749-1
State	Published - Mar 2022
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1007/s10854-022-07749-1

Cite this

@article{626c58cf26ba490eb8121a9148508538,

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

abstract = "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 μM with a linear detection range of 1–20 μM offering a novel sensing platform for Cu2+ ion.",

author = "Hira Khalid and Khan, \{Muhammad Farooq\} and Bilal Ahmad and Muhammad Ismail and Muhammad Zahid and Ahmed Ismail",

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.",

year = "2022",

month = mar,

doi = "10.1007/s10854-022-07749-1",

language = "English",

volume = "33",

pages = "5626--5634",

journal = "Journal of Materials Science: Materials in Electronics",

issn = "0957-4522",

publisher = "Springer New York",

number = "8",

}

TY - JOUR

T1 - Grass-derived carbon nanodots as a fluorescent-sensing platform for label-free detection of Cu (II) ions

AU - Khalid, Hira

AU - Khan, Muhammad Farooq

AU - Ahmad, Bilal

AU - Ismail, Muhammad

AU - Zahid, Muhammad

AU - Ismail, Ahmed

PY - 2022/3

Y1 - 2022/3

N2 - 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 μM with a linear detection range of 1–20 μM offering a novel sensing platform for Cu2+ ion.

AB - 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 μM with a linear detection range of 1–20 μM offering a novel sensing platform for Cu2+ ion.

UR - http://www.scopus.com/inward/record.url?scp=85123493581&partnerID=8YFLogxK

U2 - 10.1007/s10854-022-07749-1

DO - 10.1007/s10854-022-07749-1

M3 - Article

AN - SCOPUS:85123493581

SN - 0957-4522

VL - 33

SP - 5626

EP - 5634

JO - Journal of Materials Science: Materials in Electronics

JF - Journal of Materials Science: Materials in Electronics

IS - 8

ER -