Electrochemical Properties and Electrode Reversibility Studies of Palm Shell Activated Carbon for Heavy Metal Removal

The feasibility of palm shell activated carbon (PSAC) as an electrode for the purpose of wastewater treatment was studied for the first time using a common redox probe, Fe(CN)64−/Fe(CN)63− in 0.5 NaCl as the supporting electrolyte. Before the electrode reaction studies, the most suitable supporting...

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Published in:Electrochimica Acta
Main Author: Maarof H.I.; Ajeel M.A.; Daud W.M.A.W.; Aroua M.K.
Format: Article
Language:English
Published: Elsevier Ltd 2017
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85026840382&doi=10.1016%2fj.electacta.2017.07.171&partnerID=40&md5=bad917438d123985609da56b8e566914
id 2-s2.0-85026840382
spelling 2-s2.0-85026840382
Maarof H.I.; Ajeel M.A.; Daud W.M.A.W.; Aroua M.K.
Electrochemical Properties and Electrode Reversibility Studies of Palm Shell Activated Carbon for Heavy Metal Removal
2017
Electrochimica Acta
249

10.1016/j.electacta.2017.07.171
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85026840382&doi=10.1016%2fj.electacta.2017.07.171&partnerID=40&md5=bad917438d123985609da56b8e566914
The feasibility of palm shell activated carbon (PSAC) as an electrode for the purpose of wastewater treatment was studied for the first time using a common redox probe, Fe(CN)64−/Fe(CN)63− in 0.5 NaCl as the supporting electrolyte. Before the electrode reaction studies, the most suitable supporting electrolyte and the optimum percentage of carbon black (CB) was determined. This study reveals that the redox process was quasi-reversible while both PSAC electrodes with 20% and 30% CB showed a relatively low electron transfer resistance. A large background current due to capacitance was observed due to the porous characteristics of the PSAC electrode. A PSAC electrode with a 2 cm diameter was found to successfully remove 97% of Hg2+ from an initial concentration of 100 ppm after 3 hours of electrochemical treatment. Overall, this study proved that PSAC is a promising electrode material to remove metal ion from wastewater. © 2017 Elsevier Ltd
Elsevier Ltd
134686
English
Article

author Maarof H.I.; Ajeel M.A.; Daud W.M.A.W.; Aroua M.K.
spellingShingle Maarof H.I.; Ajeel M.A.; Daud W.M.A.W.; Aroua M.K.
Electrochemical Properties and Electrode Reversibility Studies of Palm Shell Activated Carbon for Heavy Metal Removal
author_facet Maarof H.I.; Ajeel M.A.; Daud W.M.A.W.; Aroua M.K.
author_sort Maarof H.I.; Ajeel M.A.; Daud W.M.A.W.; Aroua M.K.
title Electrochemical Properties and Electrode Reversibility Studies of Palm Shell Activated Carbon for Heavy Metal Removal
title_short Electrochemical Properties and Electrode Reversibility Studies of Palm Shell Activated Carbon for Heavy Metal Removal
title_full Electrochemical Properties and Electrode Reversibility Studies of Palm Shell Activated Carbon for Heavy Metal Removal
title_fullStr Electrochemical Properties and Electrode Reversibility Studies of Palm Shell Activated Carbon for Heavy Metal Removal
title_full_unstemmed Electrochemical Properties and Electrode Reversibility Studies of Palm Shell Activated Carbon for Heavy Metal Removal
title_sort Electrochemical Properties and Electrode Reversibility Studies of Palm Shell Activated Carbon for Heavy Metal Removal
publishDate 2017
container_title Electrochimica Acta
container_volume 249
container_issue
doi_str_mv 10.1016/j.electacta.2017.07.171
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85026840382&doi=10.1016%2fj.electacta.2017.07.171&partnerID=40&md5=bad917438d123985609da56b8e566914
description The feasibility of palm shell activated carbon (PSAC) as an electrode for the purpose of wastewater treatment was studied for the first time using a common redox probe, Fe(CN)64−/Fe(CN)63− in 0.5 NaCl as the supporting electrolyte. Before the electrode reaction studies, the most suitable supporting electrolyte and the optimum percentage of carbon black (CB) was determined. This study reveals that the redox process was quasi-reversible while both PSAC electrodes with 20% and 30% CB showed a relatively low electron transfer resistance. A large background current due to capacitance was observed due to the porous characteristics of the PSAC electrode. A PSAC electrode with a 2 cm diameter was found to successfully remove 97% of Hg2+ from an initial concentration of 100 ppm after 3 hours of electrochemical treatment. Overall, this study proved that PSAC is a promising electrode material to remove metal ion from wastewater. © 2017 Elsevier Ltd
publisher Elsevier Ltd
issn 134686
language English
format Article
accesstype
record_format scopus
collection Scopus
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