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Takahashi Y, Chan K, Zinchenko A. Multi-color polymer carbon dots synthesized from waste polyolefins through phenylenediamine-assisted hydrothermal processing. CHEMOSPHERE 2024; 354:141685. [PMID: 38513957 DOI: 10.1016/j.chemosphere.2024.141685] [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: 01/13/2024] [Revised: 02/28/2024] [Accepted: 03/09/2024] [Indexed: 03/23/2024]
Abstract
The large accumulation and low recycling rates of polyolefin waste have posed a threat to the environment and human health. The shortage of chemical recycling methods for polyolefins strongly demands the development of new and sustainable treatment technologies for hydrocarbon plastics to improve their waste management. In this study, polyethylene (PE) and polypropylene (PP) were utilized for the preparation of multi-color polymer carbon dots (PCDs) via a two-step hydrothermal (HT) synthesis involving (i) thermo-oxidative degradation of polyolefins to precursors containing plentiful oxygen-based functional groups, and (ii) modification with phenylenediamine (PDA). The fluorescence of PCDs depends on the structure of isomeric PDA and PCDs modified by ortho-, meta-, and para-PDA emit blue, green, and yellow color fluorescence, respectively. The formation mechanism of PCDs, involving dehydrative condensation and amination of PE or PP-derived precursors by PDA, was proposed. The obtained PCDs were utilized for the detection and quantification of Fe3+ ions at ppm concentrations. The proposed strategy here aims to broaden the scope of the chemical recycling methods for polyolefin plastic waste as well as to develop a conversion route of polyolefin to value-added materials.
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Affiliation(s)
- Yusei Takahashi
- Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan.
| | - Kayee Chan
- Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan.
| | - Anatoly Zinchenko
- Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan.
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Poonia K, Singh P, Ahamad T, Le QV, Phan Quang HH, Thakur S, Mishra AK, Selvasembian R, Hussain CM, Nguyen VH, Raizada P. Sustainability, performance, and production perspectives of waste-derived functional carbon nanomaterials towards a sustainable environment: A review. CHEMOSPHERE 2024; 352:141419. [PMID: 38360410 DOI: 10.1016/j.chemosphere.2024.141419] [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: 06/01/2023] [Revised: 12/21/2023] [Accepted: 02/07/2024] [Indexed: 02/17/2024]
Abstract
The survival of humanity is severely threatened by the massive accumulation of waste in the ecosystem. One plausible solution for the management and upcycling of waste is conversing waste at the molecular level and deriving carbon-based nanomaterial. The field of carbon nanomaterials with distinctive properties, such as exceptionally large surface areas, good thermal and chemical stability, and improved propagation of charge carriers, remains a significant area of research. The study demonstrates recent developments in high-value carbon-based photocatalysts synthesis from various waste precursors, including zoonotic, phytogenic, polyolefinic, electronic, and biomedical, highlighting the progression as photocatalysts and adsorbents for wastewater treatment and water splitting applications. This review highpoints the benefits of using waste as a precursor to support sustainability and circular economy and the risks associated with their use. Finally, we support that a sustainable society will eventually be realized by exploring present obstacles and potential steps for creating superior carbon-based nanomaterials in the future.
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Affiliation(s)
- Komal Poonia
- School of Advanced Chemical Sciences, Shoolini University, Solan, Himachal Pradesh- 8, 173229, India
| | - Pardeep Singh
- School of Advanced Chemical Sciences, Shoolini University, Solan, Himachal Pradesh- 8, 173229, India
| | - Tansir Ahamad
- Department of Chemistry, College of Science, King Saud University, Saudi Arabia
| | - Quyet Van Le
- Department of Materials Science and Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Huy Hoang Phan Quang
- Faculty of Biology and Environment, Ho Chi Minh City University of Industry and Trade (HUIT), 140 Le Trong Tan Street, Tay Thanh Ward, Tan Phu District, Ho Chi Minh City, Viet Nam
| | - Sourbh Thakur
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100 Gliwice, Poland
| | - Ajay Kumar Mishra
- Department of Chemistry, Durban University of Technology, Steve Biko Road, Durban, 4001, South Africa
| | - Rangabhashiyam Selvasembian
- Department of Environmental Science and Engineering, School of Engineering and Sciences, SRM University-AP, Amaravati, Andhra Pradesh 522240, India
| | - Chaudhery Mustansar Hussain
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Van-Huy Nguyen
- Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, 603103, Tamil Nadu, India.
| | - Pankaj Raizada
- School of Advanced Chemical Sciences, Shoolini University, Solan, Himachal Pradesh- 8, 173229, India.
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Arpita, Kumar P, Kataria N, Narwal N, Kumar S, Kumar R, Khoo KS, Show PL. Plastic Waste-Derived Carbon Dots: Insights of Recycling Valuable Materials Towards Environmental Sustainability. CURRENT POLLUTION REPORTS 2023; 9:1-21. [PMID: 37362608 PMCID: PMC10214366 DOI: 10.1007/s40726-023-00268-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 04/26/2023] [Indexed: 06/28/2023]
Abstract
Carbon dots (CDs) or carbon quantum dots (CQDs) have emerged as rising stars in the carbon family due to their diverse applications in various fields. CDs are spherical particles with a well-distributed size of less than 10 nm. Functional CDs are promising nanomaterials with low toxicity, low cost, and enormous applications in the field of bioimaging, optoelectronics, photocatalysis, and sensing. Plastic is non-biodegradable and hazardous to the environment, however extremely durable and used in abundance. During the COVID-19 pandemic, the use of plastic waste, particularly masks, goggles, face shields, and shoe cover, has increased tremendously. It needs to be recycled in a productive way as plastic wastes take hundreds or thousands of years to degrade naturally. The conversion of plastic waste into magnificent CDs has been reported as one of the key alternatives for environmental sustainability and socio-economic benefits. In this review, synthetic routes for the conversion of plastic wastes into CDs utilizing hydrothermal, solvothermal, pyrolysis, flash joule heating, and characterization of these CDs using different techniques, such as Fourier-transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, and transmission electron microscope, have been discussed. Furthermore, potential applications of these plastic-derived CDs in sensing, catalysis, agronomics, and LED lights are summarized herein.
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Affiliation(s)
- Arpita
- Faculty of Sciences, J. C. Bose University of Science & Technology, YMCA, Haryana 121006 Faridabad, India
| | - Parmod Kumar
- Faculty of Sciences, J. C. Bose University of Science & Technology, YMCA, Haryana 121006 Faridabad, India
| | - Navish Kataria
- Faculty of Sciences, J. C. Bose University of Science & Technology, YMCA, Haryana 121006 Faridabad, India
| | - Nishita Narwal
- University School of Environment Management, Guru Gobind Singh Indraprastha University, New Delhi, 110078 India
| | - Sandeep Kumar
- Faculty of Sciences, J. C. Bose University of Science & Technology, YMCA, Haryana 121006 Faridabad, India
| | - Ravi Kumar
- Faculty of Sciences, J. C. Bose University of Science & Technology, YMCA, Haryana 121006 Faridabad, India
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, 602105, Chennai, India
| | - Pau Loke Show
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
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A solar photothermo-catalytic combined process for the VOCs combustion and the subsequent CO2 valorisation using noble metal-free catalysts. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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