Synthesis of fluorescent nitrogen-doped carbon spheres from corncob residue for the detection of Fe (III) in aqueous solutions

Lindokuhle P. Magagula; Nosipho Moloto; Siziwe Gqoba; Patricia J. Kooyman; Tshwafo E. Motaung; Ella C. Linganiso

doi:10.1109/SENSORS47087.2021.9639764

Synthesis of fluorescent nitrogen-doped carbon spheres from corncob residue for the detection of Fe (III) in aqueous solutions

Lindokuhle P. Magagula, Nosipho Moloto, Siziwe Gqoba, Patricia J. Kooyman, Tshwafo E. Motaung, Ella C. Linganiso

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

Water contamination has become more severe as modern industrial technology has progressed over the years. Among water contaminants are heavy metal ions such as Fe3+, which is commonly used in industries such as mining, chemical processing, and battery manufacturing. Fe3+ is the principal contaminant of concern in acid mine drainage from coal mines, causing siderosis and organ damage. The current study prepared highly photoluminescent nitrogen-doped functionalized carbon spheres (N-CSs) from corncob residue using a facile, green, and low-cost microwave synthesis. The as-prepared N-CSs exhibited an excitation-dependent fluorescence with a maximum emission and excitation at 420 and 340 nm, respectively and showed good selectivity and sensitivity towards the detection of Fe3+ with a 70nM limit of detection.

Original language	English
Title of host publication	2021 IEEE Sensors, SENSORS 2021 - Conference Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728195018
DOIs	https://doi.org/10.1109/SENSORS47087.2021.9639764
Publication status	Published - 2021
Externally published	Yes
Event	20th IEEE Sensors, SENSORS 2021 - Virtual, Online, Australia Duration: 31 Oct 2021 → 4 Nov 2021

Publication series

Name	Proceedings of IEEE Sensors
Volume	2021-October
ISSN (Print)	1930-0395
ISSN (Electronic)	2168-9229

Conference

Conference	20th IEEE Sensors, SENSORS 2021
Country/Territory	Australia
City	Virtual, Online
Period	31/Oct/21 → 04/Nov/21

Keywords

Carbon spheres
Corncob residue
Fe
Fluorescence quenching
Sensor

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/SENSORS47087.2021.9639764

Cite this

Magagula, L. P., Moloto, N., Gqoba, S., Kooyman, P. J., Motaung, T. E., & Linganiso, E. C. (2021). Synthesis of fluorescent nitrogen-doped carbon spheres from corncob residue for the detection of Fe (III) in aqueous solutions. In 2021 IEEE Sensors, SENSORS 2021 - Conference Proceedings (Proceedings of IEEE Sensors; Vol. 2021-October). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SENSORS47087.2021.9639764

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title = "Synthesis of fluorescent nitrogen-doped carbon spheres from corncob residue for the detection of Fe (III) in aqueous solutions",

abstract = "Water contamination has become more severe as modern industrial technology has progressed over the years. Among water contaminants are heavy metal ions such as Fe3+, which is commonly used in industries such as mining, chemical processing, and battery manufacturing. Fe3+ is the principal contaminant of concern in acid mine drainage from coal mines, causing siderosis and organ damage. The current study prepared highly photoluminescent nitrogen-doped functionalized carbon spheres (N-CSs) from corncob residue using a facile, green, and low-cost microwave synthesis. The as-prepared N-CSs exhibited an excitation-dependent fluorescence with a maximum emission and excitation at 420 and 340 nm, respectively and showed good selectivity and sensitivity towards the detection of Fe3+ with a 70nM limit of detection.",

keywords = "Carbon spheres, Corncob residue, Fe, Fluorescence quenching, Sensor",

author = "Magagula, {Lindokuhle P.} and Nosipho Moloto and Siziwe Gqoba and Kooyman, {Patricia J.} and Motaung, {Tshwafo E.} and Linganiso, {Ella C.}",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 20th IEEE Sensors, SENSORS 2021 ; Conference date: 31-10-2021 Through 04-11-2021",

year = "2021",

doi = "10.1109/SENSORS47087.2021.9639764",

language = "English",

series = "Proceedings of IEEE Sensors",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2021 IEEE Sensors, SENSORS 2021 - Conference Proceedings",

address = "United States",

}

Magagula, LP, Moloto, N, Gqoba, S, Kooyman, PJ, Motaung, TE & Linganiso, EC 2021, Synthesis of fluorescent nitrogen-doped carbon spheres from corncob residue for the detection of Fe (III) in aqueous solutions. in 2021 IEEE Sensors, SENSORS 2021 - Conference Proceedings. Proceedings of IEEE Sensors, vol. 2021-October, Institute of Electrical and Electronics Engineers Inc., 20th IEEE Sensors, SENSORS 2021, Virtual, Online, Australia, 31/Oct/21. https://doi.org/10.1109/SENSORS47087.2021.9639764

Synthesis of fluorescent nitrogen-doped carbon spheres from corncob residue for the detection of Fe (III) in aqueous solutions. / Magagula, Lindokuhle P.; Moloto, Nosipho; Gqoba, Siziwe et al.
2021 IEEE Sensors, SENSORS 2021 - Conference Proceedings. Institute of Electrical and Electronics Engineers Inc., 2021. (Proceedings of IEEE Sensors; Vol. 2021-October).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Synthesis of fluorescent nitrogen-doped carbon spheres from corncob residue for the detection of Fe (III) in aqueous solutions

AU - Magagula, Lindokuhle P.

AU - Moloto, Nosipho

AU - Gqoba, Siziwe

AU - Kooyman, Patricia J.

AU - Motaung, Tshwafo E.

AU - Linganiso, Ella C.

PY - 2021

Y1 - 2021

N2 - Water contamination has become more severe as modern industrial technology has progressed over the years. Among water contaminants are heavy metal ions such as Fe3+, which is commonly used in industries such as mining, chemical processing, and battery manufacturing. Fe3+ is the principal contaminant of concern in acid mine drainage from coal mines, causing siderosis and organ damage. The current study prepared highly photoluminescent nitrogen-doped functionalized carbon spheres (N-CSs) from corncob residue using a facile, green, and low-cost microwave synthesis. The as-prepared N-CSs exhibited an excitation-dependent fluorescence with a maximum emission and excitation at 420 and 340 nm, respectively and showed good selectivity and sensitivity towards the detection of Fe3+ with a 70nM limit of detection.

AB - Water contamination has become more severe as modern industrial technology has progressed over the years. Among water contaminants are heavy metal ions such as Fe3+, which is commonly used in industries such as mining, chemical processing, and battery manufacturing. Fe3+ is the principal contaminant of concern in acid mine drainage from coal mines, causing siderosis and organ damage. The current study prepared highly photoluminescent nitrogen-doped functionalized carbon spheres (N-CSs) from corncob residue using a facile, green, and low-cost microwave synthesis. The as-prepared N-CSs exhibited an excitation-dependent fluorescence with a maximum emission and excitation at 420 and 340 nm, respectively and showed good selectivity and sensitivity towards the detection of Fe3+ with a 70nM limit of detection.

KW - Carbon spheres

KW - Corncob residue

KW - Fe

KW - Fluorescence quenching

KW - Sensor

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U2 - 10.1109/SENSORS47087.2021.9639764

DO - 10.1109/SENSORS47087.2021.9639764

M3 - Conference contribution

AN - SCOPUS:85123598562

T3 - Proceedings of IEEE Sensors

BT - 2021 IEEE Sensors, SENSORS 2021 - Conference Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 20th IEEE Sensors, SENSORS 2021

Y2 - 31 October 2021 through 4 November 2021

ER -

Magagula LP, Moloto N, Gqoba S, Kooyman PJ, Motaung TE, Linganiso EC. Synthesis of fluorescent nitrogen-doped carbon spheres from corncob residue for the detection of Fe (III) in aqueous solutions. In 2021 IEEE Sensors, SENSORS 2021 - Conference Proceedings. Institute of Electrical and Electronics Engineers Inc. 2021. (Proceedings of IEEE Sensors). doi: 10.1109/SENSORS47087.2021.9639764

Synthesis of fluorescent nitrogen-doped carbon spheres from corncob residue for the detection of Fe (III) in aqueous solutions

Abstract

Publication series

Conference

Keywords

UN SDGs

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