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Modified conductive polyaniline-carbon nanotube composite electrodes for bioelectricity generation and waste remediation.
Bioresour Technol. 2019 Jul; 284:148-154.BT

Abstract

Anode with good electrocatalytic capabilities is more specifically required to reduce the ohimic losses during microbial fuel cell (MFC) operation. Highly conductive polymers viz., Polyaniline (PANi) and Polyaniline/Carbon nanotube (PANi/CNT) composite were prepared by in situ oxidative chemical polymerization method. Anodes were fabricated independently by coating PANi and CNT/PANi composites on the surface of SSM. The fabricated electrodes were evaluated as anode against stainless steel mess (SSM) as cathode during MFC operation. Maximum bioelectricity generation was observed in SSM-PANi/CNT-anode with power density of 48 mW/m2 and COD removal efficiency of 80% compared with SSM-PANi-anode (38 mW/m2; 65%) and SSM-anode (28 mW/m2; 58%). Bioelectrochemical characterization of the electrode materials using cyclic voltammetry and electrochemical impedance spectroscopy showed high electrocatalytic activity of PANi/CNT composite electrode. The study concluded the efficiency of PANi/CNT composite electrodes as bioanode in operation of MFCs towards achieving increased bioelectricity production along with wastewater treatment.

Authors+Show Affiliations

Bioengineering and Environmental Sciences Lab, CEEFF, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India; Department of Chemistry, Sri Venkateswara University, Tirupati 517 502, Andhra Pradesh, India.Bioengineering and Environmental Sciences Lab, CEEFF, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), Hyderabad, India.Bioengineering and Environmental Sciences Lab, CEEFF, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), Hyderabad, India.Department of Chemistry, Sri Venkateswara University, Tirupati 517 502, Andhra Pradesh, India.Bioengineering and Environmental Sciences Lab, CEEFF, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), Hyderabad, India. Electronic address: svmohan@iict.res.in.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30928826

Citation

Yellappa, Masapogu, et al. "Modified Conductive Polyaniline-carbon Nanotube Composite Electrodes for Bioelectricity Generation and Waste Remediation." Bioresource Technology, vol. 284, 2019, pp. 148-154.
Yellappa M, Sravan JS, Sarkar O, et al. Modified conductive polyaniline-carbon nanotube composite electrodes for bioelectricity generation and waste remediation. Bioresour Technol. 2019;284:148-154.
Yellappa, M., Sravan, J. S., Sarkar, O., Reddy, Y. V. R., & Mohan, S. V. (2019). Modified conductive polyaniline-carbon nanotube composite electrodes for bioelectricity generation and waste remediation. Bioresource Technology, 284, 148-154. https://doi.org/10.1016/j.biortech.2019.03.085
Yellappa M, et al. Modified Conductive Polyaniline-carbon Nanotube Composite Electrodes for Bioelectricity Generation and Waste Remediation. Bioresour Technol. 2019;284:148-154. PubMed PMID: 30928826.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Modified conductive polyaniline-carbon nanotube composite electrodes for bioelectricity generation and waste remediation. AU - Yellappa,Masapogu, AU - Sravan,J Shanthi, AU - Sarkar,Omprakash, AU - Reddy,Y V Rami, AU - Mohan,S Venkata, Y1 - 2019/03/19/ PY - 2019/01/31/received PY - 2019/03/14/revised PY - 2019/03/16/accepted PY - 2019/4/1/pubmed PY - 2019/9/17/medline PY - 2019/4/1/entrez KW - Bioelectrochemical systems KW - Conductive polymer KW - Electrocatalyst KW - Nanocomposite KW - Polyaniline SP - 148 EP - 154 JF - Bioresource technology JO - Bioresour. Technol. VL - 284 N2 - Anode with good electrocatalytic capabilities is more specifically required to reduce the ohimic losses during microbial fuel cell (MFC) operation. Highly conductive polymers viz., Polyaniline (PANi) and Polyaniline/Carbon nanotube (PANi/CNT) composite were prepared by in situ oxidative chemical polymerization method. Anodes were fabricated independently by coating PANi and CNT/PANi composites on the surface of SSM. The fabricated electrodes were evaluated as anode against stainless steel mess (SSM) as cathode during MFC operation. Maximum bioelectricity generation was observed in SSM-PANi/CNT-anode with power density of 48 mW/m2 and COD removal efficiency of 80% compared with SSM-PANi-anode (38 mW/m2; 65%) and SSM-anode (28 mW/m2; 58%). Bioelectrochemical characterization of the electrode materials using cyclic voltammetry and electrochemical impedance spectroscopy showed high electrocatalytic activity of PANi/CNT composite electrode. The study concluded the efficiency of PANi/CNT composite electrodes as bioanode in operation of MFCs towards achieving increased bioelectricity production along with wastewater treatment. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/30928826/Modified_conductive_polyaniline_carbon_nanotube_composite_electrodes_for_bioelectricity_generation_and_waste_remediation_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(19)30444-4 DB - PRIME DP - Unbound Medicine ER -