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Graphene Oxide Modified Pencil Graphite Electrode for the Detection of H2O2

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dc.contributor.advisor Jamal, Dr. A. B. M. Mamun
dc.contributor.author Mistry, Joyanta
dc.date.accessioned 2019-01-13T09:03:48Z
dc.date.available 2019-01-13T09:03:48Z
dc.date.copyright 2018
dc.date.issued 2018-06
dc.identifier.other ID 1653505
dc.identifier.uri http://hdl.handle.net/20.500.12228/483
dc.description This thesis is submitted to the Department of Chemistry, Khulna University of Engineering & Technology in partial fulfillment of the requirements for the degree of Master of Science in Chemistry, June 2018. en_US
dc.description Cataloged from PDF Version of Thesis.
dc.description Includes bibliographical references (pages 70-78).
dc.description.abstract In this work, we propose a new, robust and reliable way to detect H2O2. Reduced graphene oxide-supported tin oxide (SnO2-rGO) as electrochemical sensing material has been synthesized and drop cased on pencil graphite electrode (PGE) for the detection of H2O2. Electrochemical characterization has been done using cyclic voltammetry (CV) and amperometry. Hydrothermal synthesis method was used for the fabrication of SnO2 nanoparticles and GO prepared by modified Hummers method. For the detection of H2O2, the nanoparticles were mixed with Nafion and chitosan before drop coating onto the PGE surface. In this work, we have found a good catalytic activity of SnO2-rGO modified 3B PGE at pH 7.4. Electrochemical studies showed that the sensing platform fabricated using SnO2-rGO possesses fast mass transport, good electrical conductivity and high sensitivity and selectivity for the detection of H2O2. SnO2- GO/PGE exhibited amperometric sensitivity of 53.4 μAmM−1cm-2 with a response time 2s, limit of detection of 0.09μM (n=3), and linearity range of 1-7 mM. The electrode can be prepared simply and at low cost, and present a promising tool for sensing H2O2. en_US
dc.description.statementofresponsibility Joyanta Mistry
dc.format.extent 78 pages
dc.language.iso en_US en_US
dc.publisher Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh en_US
dc.rights Khulna University of Engineering & Technology (KUET) thesis/dissertation/internship reports are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
dc.subject Pencil Graphite Electrode (PGE) en_US
dc.subject Hydrogen Peroxide (H2O2) en_US
dc.subject Graphene Oxide en_US
dc.title Graphene Oxide Modified Pencil Graphite Electrode for the Detection of H2O2 en_US
dc.type Thesis en_US
dc.contributor.department Department of Chemistry


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