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Photoelectrocatalytic degradation of carbamazepine using Ti/TiO2 nanostructured electrodes deposited by means of a pulsed laser deposition process.
Chemosphere. 2013 Nov; 93(11):2756-66.C

Abstract

The objective of the present work is to evaluate the potential of photoelectrocatalytic oxidation (PECO) process using Ti/TiO2 for the degradation of carbamazepine (CBZ). Ti/TiO2 prepared by pulsed laser deposition (PLD) has been used as a photo-catalyst in a photoelectrocatalytic cell. The PLD TiO2 coatings were found to be of anatase structure consisting of nanocrystallites of approximately 15nm in diameter. Factorial and central and extreme composite design methodologies were successively employed to define the optimal operating conditions for CBZ degradation. Several factors such as current intensity, treatment time, pollutant concentration and cathode material were investigated. Using a 2(4) factorial matrix, the best performance for CBZ degradation (53.5%) was obtained at a current intensity of 0.1 A during 120min of treatment time and when the vitreous carbon (VC) was used at the cathode in the presence of 10mgL(-1) of CBZ. Treatment time and pollutant concentration were found to be very meaningful for CBZ removal. The PECO process applied under optimal conditions (at current intensity of 0.3A during 120min in the presence of 10mgL(-1) of CBZ with VC at the cathode) is able to oxidize around 73.5% ±2.8% of CBZ and to ensure 21.2%±7.7% of mineralization. During PECO process, CBZ was mainly transformed to acridine and anthranilic acid. Microtox biotests (Vibrio fisheri) showed that the treated - effluent was not toxic. The pseudo-second order kinetic model (k2=6×10(-4)Lmg(-1)min(-1)) described very well the oxidation of CBZ.

Authors+Show Affiliations

Institut National de la Recherche Scientifique (INRS-Eau Terre et Environnement), Université du Québec, 490 rue de la Couronne, Quebec City, Quebec G1K 9A9, Canada. Electronic address: rimeh.daghrir@ete.inrs.ca.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

24144463

Citation

Daghrir, R, et al. "Photoelectrocatalytic Degradation of Carbamazepine Using Ti/TiO2 Nanostructured Electrodes Deposited By Means of a Pulsed Laser Deposition Process." Chemosphere, vol. 93, no. 11, 2013, pp. 2756-66.
Daghrir R, Drogui P, Dimboukou-Mpira A, et al. Photoelectrocatalytic degradation of carbamazepine using Ti/TiO2 nanostructured electrodes deposited by means of a pulsed laser deposition process. Chemosphere. 2013;93(11):2756-66.
Daghrir, R., Drogui, P., Dimboukou-Mpira, A., & El Khakani, M. A. (2013). Photoelectrocatalytic degradation of carbamazepine using Ti/TiO2 nanostructured electrodes deposited by means of a pulsed laser deposition process. Chemosphere, 93(11), 2756-66. https://doi.org/10.1016/j.chemosphere.2013.09.031
Daghrir R, et al. Photoelectrocatalytic Degradation of Carbamazepine Using Ti/TiO2 Nanostructured Electrodes Deposited By Means of a Pulsed Laser Deposition Process. Chemosphere. 2013;93(11):2756-66. PubMed PMID: 24144463.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Photoelectrocatalytic degradation of carbamazepine using Ti/TiO2 nanostructured electrodes deposited by means of a pulsed laser deposition process. AU - Daghrir,R, AU - Drogui,P, AU - Dimboukou-Mpira,A, AU - El Khakani,M A, Y1 - 2013/10/18/ PY - 2013/05/28/received PY - 2013/09/06/revised PY - 2013/09/08/accepted PY - 2013/10/23/entrez PY - 2013/10/23/pubmed PY - 2014/5/16/medline KW - AOPs KW - CBZ KW - CECD KW - Carbamazepine KW - EDC KW - FD KW - Factorial Design KW - Gr KW - PC KW - PECO KW - PLD KW - PPs KW - Photoelectrocatalytic oxidation KW - Pulsed laser deposition KW - RNO KW - ROS KW - RSM KW - SEM KW - SS KW - TOC KW - Titanium dioxide KW - VC KW - Vitreous carbon KW - WWTPs KW - X-ray diffraction KW - XRD KW - a-C KW - advanced oxidation processes KW - amorphous carbon KW - carbamazepine KW - central and extreme composite design KW - endocrine disrupting compound KW - graphite KW - p-nitrosodimethylaniline KW - pharmaceutical products KW - photocatalytic KW - photoelectrocatalytic oxidation KW - pulsed laser deposition KW - reactive oxygen species KW - response surface methodology KW - scanning electronic microscopy KW - stainless steel KW - total organic carbon KW - vitreous carbon KW - wastewater treatment plants SP - 2756 EP - 66 JF - Chemosphere JO - Chemosphere VL - 93 IS - 11 N2 - The objective of the present work is to evaluate the potential of photoelectrocatalytic oxidation (PECO) process using Ti/TiO2 for the degradation of carbamazepine (CBZ). Ti/TiO2 prepared by pulsed laser deposition (PLD) has been used as a photo-catalyst in a photoelectrocatalytic cell. The PLD TiO2 coatings were found to be of anatase structure consisting of nanocrystallites of approximately 15nm in diameter. Factorial and central and extreme composite design methodologies were successively employed to define the optimal operating conditions for CBZ degradation. Several factors such as current intensity, treatment time, pollutant concentration and cathode material were investigated. Using a 2(4) factorial matrix, the best performance for CBZ degradation (53.5%) was obtained at a current intensity of 0.1 A during 120min of treatment time and when the vitreous carbon (VC) was used at the cathode in the presence of 10mgL(-1) of CBZ. Treatment time and pollutant concentration were found to be very meaningful for CBZ removal. The PECO process applied under optimal conditions (at current intensity of 0.3A during 120min in the presence of 10mgL(-1) of CBZ with VC at the cathode) is able to oxidize around 73.5% ±2.8% of CBZ and to ensure 21.2%±7.7% of mineralization. During PECO process, CBZ was mainly transformed to acridine and anthranilic acid. Microtox biotests (Vibrio fisheri) showed that the treated - effluent was not toxic. The pseudo-second order kinetic model (k2=6×10(-4)Lmg(-1)min(-1)) described very well the oxidation of CBZ. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/24144463/Photoelectrocatalytic_degradation_of_carbamazepine_using_Ti/TiO2_nanostructured_electrodes_deposited_by_means_of_a_pulsed_laser_deposition_process_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(13)01271-X DB - PRIME DP - Unbound Medicine ER -