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

2 Citations (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

UN SDGs

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

SDG 6 Clean Water and Sanitation
SDG 9 Industry, Innovation, and Infrastructure

Keywords

Carbon spheres
Corncob residue
Fe
Fluorescence quenching
Sensor

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

@inproceedings{c28126ac88bb4d72a477e65e6051f984,

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

UR - https://www.scopus.com/pages/publications/85123598562

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

UN SDGs

Keywords

Access to Document

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