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Rocha J, de Oliveira JC, Bettini J, Strauss M, Selmi GS, Okazaki AK, de Oliveira RF, Lima RS, Santhiago M. Tuning the Chemical and Electrochemical Properties of Paper-Based Carbon Electrodes by Pyrolysis of Polydopamine. ACS MEASUREMENT SCIENCE AU 2024; 4:188-200. [PMID: 38645575 PMCID: PMC11027207 DOI: 10.1021/acsmeasuresciau.3c00063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/19/2023] [Accepted: 11/21/2023] [Indexed: 04/23/2024]
Abstract
Electrochemical paper-based analytical devices represent an important platform for portable, low-cost, affordable, and decentralized diagnostics. For this kind of application, chemical functionalization plays a pivotal role to ensure high clinical performance by tuning surface properties and the area of electrodes. However, controlling different surface properties of electrodes by using a single functionalization route is still challenging. In this work, we attempted to tune the wettability, chemical composition, and electroactive area of carbon-paper-based devices by thermally treating polydopamine (PDA) at different temperatures. PDA films were deposited onto pyrolyzed paper (PP) electrodes and thermally treated in the range of 300-1000 °C. After deposition of PDA, the surface is rich in nitrogen and oxygen, it is superhydrophilic, and it has a high electroactive area. As the temperature increases, the surface becomes hydrophobic, and the electroactive area decreases. The surface modifications were followed by Raman, X-ray photoelectron microscopy (XPS), laser scanning confocal microscopy (LSCM), contact angle, scanning electron microscopy (SEM-EDS), electrical measurements, transmission electron microscopy (TEM), and electrochemical experiments. In addition, the chemical composition of nitrogen species can be tuned on the surface. As a proof of concept, we employed PDA-treated surfaces to anchor [AuCl4]- ions. After electrochemical reduction, we observed that it is possible to control the size of the nanoparticles on the surface. Our route opens a new avenue to add versatility to electrochemical interfaces in the field of paper-based electrochemical biosensors.
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Affiliation(s)
- Jaqueline
F. Rocha
- Brazilian
Nanotechnology National Laboratory, Brazilian
Center for Research in Energy and Materials, São Paulo, Campinas 13083-100, Brazil
- Federal
University of ABC, São Paulo, Santo André 09210-580, Brazil
| | - Julia C. de Oliveira
- Brazilian
Nanotechnology National Laboratory, Brazilian
Center for Research in Energy and Materials, São Paulo, Campinas 13083-100, Brazil
| | - Jefferson Bettini
- Brazilian
Nanotechnology National Laboratory, Brazilian
Center for Research in Energy and Materials, São Paulo, Campinas 13083-100, Brazil
| | - Mathias Strauss
- Brazilian
Nanotechnology National Laboratory, Brazilian
Center for Research in Energy and Materials, São Paulo, Campinas 13083-100, Brazil
| | - Guilherme S. Selmi
- Brazilian
Nanotechnology National Laboratory, Brazilian
Center for Research in Energy and Materials, São Paulo, Campinas 13083-100, Brazil
- Universidade
Estadual de Campinas, Instituto de Física
Gleb Wataghin, São Paulo, Campinas 13083-859, Brazil
| | - Anderson K. Okazaki
- Brazilian
Nanotechnology National Laboratory, Brazilian
Center for Research in Energy and Materials, São Paulo, Campinas 13083-100, Brazil
| | - Rafael F. de Oliveira
- Brazilian
Nanotechnology National Laboratory, Brazilian
Center for Research in Energy and Materials, São Paulo, Campinas 13083-100, Brazil
- Universidade
Estadual de Campinas, Instituto de Física
Gleb Wataghin, São Paulo, Campinas 13083-859, Brazil
| | - Renato S. Lima
- Brazilian
Nanotechnology National Laboratory, Brazilian
Center for Research in Energy and Materials, São Paulo, Campinas 13083-100, Brazil
- Federal
University of ABC, São Paulo, Santo André 09210-580, Brazil
- Institute
of Chemistry, University of Campinas, São Paulo, Campinas 13083-970, Brazil
- São
Carlos Institute of Chemistry, University
of São Paulo, São Paulo, São Carlos 09210-580, Brazil
| | - Murilo Santhiago
- Brazilian
Nanotechnology National Laboratory, Brazilian
Center for Research in Energy and Materials, São Paulo, Campinas 13083-100, Brazil
- Federal
University of ABC, São Paulo, Santo André 09210-580, Brazil
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Bian X, Xia G, Xin JH, Jiang S, Ma K. Applications of waste polyethylene terephthalate (PET) based nanostructured materials: A review. CHEMOSPHERE 2024; 350:141076. [PMID: 38169200 DOI: 10.1016/j.chemosphere.2023.141076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 12/07/2023] [Accepted: 12/28/2023] [Indexed: 01/05/2024]
Abstract
While polyethylene terephthalate (PET) has enjoyed widespread use, a large volume of plastic waste has also been produced as a result, which is detrimental to the environment. Traditional treatment of plastic waste, such as landfilling and incinerating waste, causes environmental pollution and poses risks to public health. Recycling PET waste into useful chemicals or upcycling the waste into high value-added materials can be remedies. This review first provides a brief introduction of the synthesis, structure, properties, and applications of virgin PET. Then the conversion process of waste PET into high value-added materials for different applications are introduced. The conversion mechanisms (including degradation, recycling and upcycling) are detailed. The advanced applications of these upgraded materials in energy storage devices (supercapacitors, lithium-ion batteries, and microbial fuel cells), and for water treatment (to remove dyes, heavy metals, and antibiotics), environmental remediation (for air filtration, CO2 adsorption, and oil removal) and catalysis (to produce H2, photoreduce CO2, and remove toxic chemicals) are discussed at length. In general, this review details the exploration of advanced technologies for the transformation of waste PET into nanostructured materials for various applications, and provides insights into the role of high value-added waste products in sustainability and economic development.
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Affiliation(s)
- Xueyan Bian
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Gang Xia
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - John H Xin
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
| | - Shouxiang Jiang
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
| | - Kaikai Ma
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
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