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Electrochemical degradation of gallic acid on a BDD anode.
Chemosphere. 2009 Nov; 77(8):1060-4.C

Abstract

The electrochemical oxidation of gallic acid (3,4,5-trihydroxybenzoic acid) has been studied on a boron-doped diamond anode (BDD). Cyclic voltammetries, chronoamperometries and bulk electrolyses were performed to characterise the electrochemical behaviour of gallic acid on diamond-type anode and to study the kinetics of gallic acid degradation. UV spectroscopy, HPLC analysis, COD and TOC measurements were conducted to study the reaction pathway for gallic acid mineralisation. The results showed that both direct and mediated electrochemical processes were involved in the oxidation of gallic acid. The degradation of gallic acid evidenced a pseudo first-order kinetics and the rate constant increased with applied current. Aliphatic acids were the main intermediates formed during the electrolyses and they were finally mineralised to CO(2) and water. The degradation rate on boron-doped diamond was under mass-transport control and was favoured by the increase of the flow rate of the solution into the electrochemical reactor.

Authors+Show Affiliations

Department of Chemical and Process Engineering, University of Genoa, P.le J.F. Kennedy 1, 16129 Genova, Italy. marco.panizza@unige.itNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19775725

Citation

Panizza, Marco, and Giacomo Cerisola. "Electrochemical Degradation of Gallic Acid On a BDD Anode." Chemosphere, vol. 77, no. 8, 2009, pp. 1060-4.
Panizza M, Cerisola G. Electrochemical degradation of gallic acid on a BDD anode. Chemosphere. 2009;77(8):1060-4.
Panizza, M., & Cerisola, G. (2009). Electrochemical degradation of gallic acid on a BDD anode. Chemosphere, 77(8), 1060-4. https://doi.org/10.1016/j.chemosphere.2009.09.007
Panizza M, Cerisola G. Electrochemical Degradation of Gallic Acid On a BDD Anode. Chemosphere. 2009;77(8):1060-4. PubMed PMID: 19775725.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Electrochemical degradation of gallic acid on a BDD anode. AU - Panizza,Marco, AU - Cerisola,Giacomo, Y1 - 2009/09/22/ PY - 2009/05/15/received PY - 2009/09/01/revised PY - 2009/09/01/accepted PY - 2009/9/25/entrez PY - 2009/9/25/pubmed PY - 2010/2/4/medline SP - 1060 EP - 4 JF - Chemosphere JO - Chemosphere VL - 77 IS - 8 N2 - The electrochemical oxidation of gallic acid (3,4,5-trihydroxybenzoic acid) has been studied on a boron-doped diamond anode (BDD). Cyclic voltammetries, chronoamperometries and bulk electrolyses were performed to characterise the electrochemical behaviour of gallic acid on diamond-type anode and to study the kinetics of gallic acid degradation. UV spectroscopy, HPLC analysis, COD and TOC measurements were conducted to study the reaction pathway for gallic acid mineralisation. The results showed that both direct and mediated electrochemical processes were involved in the oxidation of gallic acid. The degradation of gallic acid evidenced a pseudo first-order kinetics and the rate constant increased with applied current. Aliphatic acids were the main intermediates formed during the electrolyses and they were finally mineralised to CO(2) and water. The degradation rate on boron-doped diamond was under mass-transport control and was favoured by the increase of the flow rate of the solution into the electrochemical reactor. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/19775725/Electrochemical_degradation_of_gallic_acid_on_a_BDD_anode_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(09)01053-4 DB - PRIME DP - Unbound Medicine ER -