Voltammetric Determination of Rhodamine B Using a ZIF-67/Reduced Graphene Oxide Modified Electrode
In the present article, the synthesis of zeolite imidazolate framework-67/reduced graphene oxide (ZIF-67/rGO) and voltammetric determination of Rhodamine B (RhB) are demonstrated. The obtained materials were characterized by X-ray diffraction, scanning electron microscopy, transmission electron micr...
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Hindawi Limited
2020-01-01
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Series: | Journal of Nanomaterials |
Online Access: | http://dx.doi.org/10.1155/2020/4679061 |
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doaj-ee0a379ae7544e51bac2bb7bd8912d012020-11-25T02:26:59ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292020-01-01202010.1155/2020/46790614679061Voltammetric Determination of Rhodamine B Using a ZIF-67/Reduced Graphene Oxide Modified ElectrodeHuynh Truong Ngo0Vo Thang Nguyen1Tran Duc Manh2Tran Thanh Tam Toan3Nguyen Thi Minh Triet4Nguyen Thanh Binh5Nguyen Thi Vuong Hoan6Tran Vinh Thien7Dinh Quang Khieu8University of Sciences, Hue University, 49000, VietnamUniversity of Education and Science, The University of Da Nang, 50000, VietnamUniversity of Education and Science, The University of Da Nang, 50000, VietnamUniversity of Sciences, Hue University, 49000, VietnamLy Thai To High School, 70000, VietnamDalat Nuclear Research Institute, 66000, VietnamQui nhon University, 55000, VietnamUniversity of Natural Resource and Environment of Ho Chi Minh City, 70000, VietnamUniversity of Sciences, Hue University, 49000, VietnamIn the present article, the synthesis of zeolite imidazolate framework-67/reduced graphene oxide (ZIF-67/rGO) and voltammetric determination of Rhodamine B (RhB) are demonstrated. The obtained materials were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and nitrogen adsorption/desorption isotherms. It was found that the ZIF-67/rGO composite consists of ZIF-67 nano-particles highly dispersed on the rGO matrix and possesses a high specific surface area. Because of the synergistic effect of good conductivity of rGO and high surface area of ZIF-67, the ZIF-67/rGO—modified glassy carbon electrode exhibits good electrochemical behavior toward Rhodamine B (RhB) oxidation. The use of this electrode to quantitate RhB with differential pulse voltammetric method was successful with a broad linear range, from 0.96 to 44.07 μg.L-1 of RhB and a low limit of detection of 1.79 μg.L-1. The procedure was able to be applied to quantitatively determine RhB content in several food samples with an exceptional recovery rate (98-103%). The quantitative results highly agreed with that provided by high-performance liquid chromatography, revealing that this material is promising in in situ monitoring of other illegal additives in food.http://dx.doi.org/10.1155/2020/4679061 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Huynh Truong Ngo Vo Thang Nguyen Tran Duc Manh Tran Thanh Tam Toan Nguyen Thi Minh Triet Nguyen Thanh Binh Nguyen Thi Vuong Hoan Tran Vinh Thien Dinh Quang Khieu |
spellingShingle |
Huynh Truong Ngo Vo Thang Nguyen Tran Duc Manh Tran Thanh Tam Toan Nguyen Thi Minh Triet Nguyen Thanh Binh Nguyen Thi Vuong Hoan Tran Vinh Thien Dinh Quang Khieu Voltammetric Determination of Rhodamine B Using a ZIF-67/Reduced Graphene Oxide Modified Electrode Journal of Nanomaterials |
author_facet |
Huynh Truong Ngo Vo Thang Nguyen Tran Duc Manh Tran Thanh Tam Toan Nguyen Thi Minh Triet Nguyen Thanh Binh Nguyen Thi Vuong Hoan Tran Vinh Thien Dinh Quang Khieu |
author_sort |
Huynh Truong Ngo |
title |
Voltammetric Determination of Rhodamine B Using a ZIF-67/Reduced Graphene Oxide Modified Electrode |
title_short |
Voltammetric Determination of Rhodamine B Using a ZIF-67/Reduced Graphene Oxide Modified Electrode |
title_full |
Voltammetric Determination of Rhodamine B Using a ZIF-67/Reduced Graphene Oxide Modified Electrode |
title_fullStr |
Voltammetric Determination of Rhodamine B Using a ZIF-67/Reduced Graphene Oxide Modified Electrode |
title_full_unstemmed |
Voltammetric Determination of Rhodamine B Using a ZIF-67/Reduced Graphene Oxide Modified Electrode |
title_sort |
voltammetric determination of rhodamine b using a zif-67/reduced graphene oxide modified electrode |
publisher |
Hindawi Limited |
series |
Journal of Nanomaterials |
issn |
1687-4110 1687-4129 |
publishDate |
2020-01-01 |
description |
In the present article, the synthesis of zeolite imidazolate framework-67/reduced graphene oxide (ZIF-67/rGO) and voltammetric determination of Rhodamine B (RhB) are demonstrated. The obtained materials were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and nitrogen adsorption/desorption isotherms. It was found that the ZIF-67/rGO composite consists of ZIF-67 nano-particles highly dispersed on the rGO matrix and possesses a high specific surface area. Because of the synergistic effect of good conductivity of rGO and high surface area of ZIF-67, the ZIF-67/rGO—modified glassy carbon electrode exhibits good electrochemical behavior toward Rhodamine B (RhB) oxidation. The use of this electrode to quantitate RhB with differential pulse voltammetric method was successful with a broad linear range, from 0.96 to 44.07 μg.L-1 of RhB and a low limit of detection of 1.79 μg.L-1. The procedure was able to be applied to quantitatively determine RhB content in several food samples with an exceptional recovery rate (98-103%). The quantitative results highly agreed with that provided by high-performance liquid chromatography, revealing that this material is promising in in situ monitoring of other illegal additives in food. |
url |
http://dx.doi.org/10.1155/2020/4679061 |
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