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Myasoedova TN, Nedoedkova OV, Kalusulingam R, Popov YV, Mikheykin AS, Konstantinov AS, Zhengyou L, Mikhailova TS, Shmatko VA, Yalovega GE. Fabrication of Ni-Polyaniline/Graphene Oxide Composite Electrode with High Capacitance and Water Splitting Activity. Chemphyschem 2024; 25:e202300795. [PMID: 38695276 DOI: 10.1002/cphc.202300795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 04/18/2024] [Indexed: 07/03/2024]
Abstract
The Ni-PANI@GO composite electrode was fabricated via cost effective electrodeposition technique. According to the XRD, FTIR, Raman, SEM, and XPS analyses revealed that the nickel doped PANI@GO composite has been fabricated on the surface of the nickel foam. Addition of nickel significantly enhanced interaction between graphene with PANI leading to higher degree of polyaniline doping though imine groups. Electrochemical investigation revelated the significant performance of the Ni-PANI@GO composite electrode, boosting an impressive capacitance of 4480 F/g at 40 A/g, surpassing previous Ni-foam-based binder-free electrodes. Notably, Ni-PANI@GO electrode displayed excellent catalytic activity in both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), generating a considerable volume of the gas bubbles at relatively modest overpotentials of 279 mV and 244 mV respectively. This event allows for the achievement of 20 mA cm-2 current density. Furthermore, in the laboratory-scale water electrolyzer, a low cell voltage of 1.72 V was achieved, facilitating a water-splitting current density of 20 mA cm-2. This study underscores the premising potential for the real-world device's application of the versatile Ni-PANI@GO composite electrode.
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Affiliation(s)
- Tatiana N Myasoedova
- Institute of Nanotechnologies, Electronics and Electronic Equipment Engineering, Southern Federal University, Taganrog, 347900, Russia
| | - Olga V Nedoedkova
- Faculty of Physics, Southern Federal University, Rostov-on-Don, 344090, Russia
| | - Rajathsing Kalusulingam
- Institute of Nanotechnologies, Electronics and Electronic Equipment Engineering, Southern Federal University, Taganrog, 347900, Russia
| | - Yury V Popov
- Institute of Earth Sciences, Southern Federal University, Rostov-on-Don, 344090, Russia
| | - Alexey S Mikheykin
- Faculty of Physics, Southern Federal University, Rostov-on-Don, 344090, Russia
| | | | - Li Zhengyou
- Faculty of Physics, Southern Federal University, Rostov-on-Don, 344090, Russia
| | - Tatiana S Mikhailova
- Institute of Nanotechnologies, Electronics and Electronic Equipment Engineering, Southern Federal University, Taganrog, 347900, Russia
| | - Valentina A Shmatko
- Faculty of Physics, Southern Federal University, Rostov-on-Don, 344090, Russia
| | - Galina E Yalovega
- Faculty of Physics, Southern Federal University, Rostov-on-Don, 344090, Russia
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Liu W, Lou T, Wang X. Enhanced dye adsorption with conductive polyaniline doped chitosan nanofibrous membranes. Int J Biol Macromol 2023; 242:124711. [PMID: 37148947 DOI: 10.1016/j.ijbiomac.2023.124711] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 04/19/2023] [Accepted: 04/29/2023] [Indexed: 05/08/2023]
Abstract
Polyaniline is widely used in the field of electrochemistry due to its excellent electrical conductivity. However, its effectiveness and mechanism of enhancing adsorption property are unclear. Herein, chitosan/polyaniline nanofibrous composite membranes with average diameter ranging from 200 to 300 nm were fabricated by electrospinning technology. The as-prepared nanofibrous membranes exhibited significantly improved adsorption capacity of 814.9 mg/g and 618.0 mg/g towards acid blue 113 and reactive orange dyes, which were 121.8 % and 99.4 % higher than that of pure chitosan membrane. The doped polyaniline promoted the dye transfer rate and capacity due to the enhanced conductivity of the composite membrane. Kinetic data showed that chemisorption was the rate-limiting step, and thermodynamic data indicated the adsorption of the two anionic dyes was spontaneous monolayer adsorption. This study provides a feasible strategy to introduce conductive polymer into adsorbent to construct high performance adsorbents for wastewater treatment.
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Affiliation(s)
- Wenxia Liu
- College of Chemistry & Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Tao Lou
- College of Chemistry & Chemical Engineering, Qingdao University, Qingdao 266071, China.
| | - Xuejun Wang
- College of Chemistry & Chemical Engineering, Qingdao University, Qingdao 266071, China.
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Gubbi Shivarathri P, Rajappa S, Kalenahally Swamygowda D, Chattanahalli Devendrachari M, Makri Nimbegondi Kotresh H. Green mechanochemical route for the synthesis of carboxy-rich polyaniline/multiwalled carbon nanotubes composite as a competent adsorbent for cationic dyes. SEP SCI TECHNOL 2022. [DOI: 10.1080/01496395.2022.2135541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Poornima Gubbi Shivarathri
- Department of Chemistry, Acharya Institute of Technology, Bangalore, India
- Department of Chemistry, New Horizon College of Engineering, Bangalore, India
| | - Shwetha Rajappa
- Department of Chemistry, Acharya Institute of Technology, Bangalore, India
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Recent Advances in the Removal of Organic Dyes from Aqueous Media with Conducting Polymers, Polyaniline and Polypyrrole, and Their Composites. Polymers (Basel) 2022; 14:polym14194243. [PMID: 36236189 PMCID: PMC9573281 DOI: 10.3390/polym14194243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/02/2022] [Accepted: 10/04/2022] [Indexed: 12/07/2022] Open
Abstract
Water pollution by organic dyes, and its remediation, is an important environmental issue associated with ever-increasing scientific interest. Conducting polymers have recently come to the forefront as advanced agents for removing dye. The present review reports on the progress represented by the literature published in 2020–2022 on the application of conducting polymers and their composites in the removal of dyes from aqueous media. Two composites, incorporating the most important polymers, polyaniline, and polypyrrole, have been used as efficient dye adsorbents or photocatalysts of dye decomposition. The recent application trends are outlined, and future uses also exploiting the electrical and electrochemical properties of conducting polymers are offered.
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