Non-emission hydrothermal low-temperature synthesis of carbon nanomaterials from poly (ethylene terephthalate) plastic waste for excellent supercapacitor applications

IF 5.8 3区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Green Chemistry Letters and Reviews Pub Date : 2023-01-02 DOI:10.1080/17518253.2023.2173025

M. Kigozi, G. Kasozi, Sachin Balaso Mohite, S. Zamisa, R. Karpoormath, J. Kirabira, E. Tebandeke

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引用次数: 4

Abstract

ABSTRACT Poly(ethylene terephthalate) (PET) has a wide range of applications that generate a lot of waste globally; thus, upcycling PET is important because it offers several industrial and economic advantages. This study describes a sustainable, emissions-free process for converting PET plastics into carbon nanomaterials (CNMs) named PT-nano powder. The thermal-hydrothermal method has employed the production of PT-nano powder above the glass transition temperature (Tg) of PET plastics. Under optimal conditions, PET plastics were efficiently converted into PT-nano powder with 86.6% crystallinity and an average particle size of 6.5 nm. The PT-nano powder was characterized for physical and chemical properties using different techniques, including UV-Vis, FTIR, Raman spectroscopy, XRD, FESEM, TEM, and proton NMR analysis. The characterization confirms the complete conversion of PET to solid fractions of carbon nanomaterial. The PT-nano powder was tested in supercapacitor performance application with electrochemical characterization. The symmetric fabrication showed a specific capacitance of 250.8 F/g, energy density of 34.83Wh/kg, and power density of 999.9W/kg with a current density of 0.5A/g. The device fabrication exhibited high cycle stability and high capacitance retention of 96.8% with a current density of 1.5A/g after 10000 cycles. GRAPHICAL ABSTRACT

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来源期刊

Green Chemistry Letters and Reviews CHEMISTRY, MULTIDISCIPLINARY-GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY

CiteScore

9.10

自引率

3.00%

发文量

期刊介绍： Green Chemistry Letters and Reviews is an Open Access, peer-reviewed journal focused on rapid publication of innovative new syntheses and procedures that reduce or eliminate the use and generation of hazardous materials. Reviews of state-of-the-art green chemistry technologies are also included within the journal''s scope. Green Chemistry Letters and Reviews is divided into three overlapping topic areas: research, education, and industrial implementation. The journal publishes both letters, which concisely communicate the most time-sensitive results, and reviews, which aid researchers in understanding the state of science on important green chemistry topics. Submissions are encouraged which apply the 12 principles of green chemistry to: -Green Chemistry Education- Synthetic Reaction Pathways- Research and Process Analytical Techniques- Separation and Purification Technologies- Renewable Feedstocks- Degradable Products