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Sun X, Hou X, Dong A, Tian C, Yin L, Huang J, Cui T, Yuan E. Fabrication of Fe-Zr, Co-Zr, and Ni-Zr Catalysts to Boost CNTs Synthesis from Plastic Wastes and the Electrocatalytic Oxygen Evolution Reaction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 39018430 DOI: 10.1021/acs.langmuir.4c01357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2024]
Abstract
The efficient conversion of plastic wastes to high-value carbon materials like carbon nanotubes (CNTs) is one important issue about the rational recycling, reduction, and reuse of solid wastes. Herein, Fe-, Co-, and Ni-Zr catalysts were prepared and used for CNTs synthesis from polyethylene (PE) waste via a two-stage reaction system. At the same time, the effects of the PE/catalyst ratio and reaction temperature on CNTs synthesis have been studied. Compared with Co-Zr and Ni-Zr, Fe-Zr exhibited the best activity in CNTs synthesis from PE, and it achieved the highest CNTs yield of 806.3 mg/g (per gram of Fe-Zr) at 800 °C with a PE/catalyst ratio of 4. Furthermore, the obtained Fe-Zr/CNTs composite exhibited a low overpotential of 267 mV for the electrocatalytic oxygen evolution reaction (OER) at 20 mA/cm2 in 1 M KOH electrolyte solution, which was 21 mV lower than commercial RuO2 (288 mV) and 50 mV lower than Fe-Zr (317 mV). It was deduced that the in situ growth of CNTs reduced the charge transfer resistance and improved the electron transport efficiency of the Fe-Zr/CNTs composite, leading to superior activity in the electrocatalytic OER. This work provided detailed information for the preparation of the metal/CNTs composite from plastic wastes, which contributed positively to alleviate the environment and energy crisis.
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Affiliation(s)
- Xinyao Sun
- School of Chemical Engineering, Changchun University of Technology, Changchun, Jilin 130012, P. R. China
| | - Xu Hou
- School of Chemical Engineering, Changchun University of Technology, Changchun, Jilin 130012, P. R. China
- Advanced Institute of Materials Science, Changchun University of Technology, Changchun, Jilin 130012, P. R. China
| | - Ao Dong
- School of Chemical Engineering, Changchun University of Technology, Changchun, Jilin 130012, P. R. China
| | - Changchang Tian
- School of Chemical Engineering, Changchun University of Technology, Changchun, Jilin 130012, P. R. China
| | - Li Yin
- School of Chemical Engineering, Changchun University of Technology, Changchun, Jilin 130012, P. R. China
| | - Jing Huang
- School of Chemical Engineering, Changchun University of Technology, Changchun, Jilin 130012, P. R. China
| | - Tingting Cui
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, Heilongjiang 150040, P. R. China
| | - Enxian Yuan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China
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Shoukat B, Hussain H, Naz MY, Ibrahim AA, Shukrullah S, Khan Y, Zhang Y. Microwave-Assisted Catalytic Deconstruction of Plastics Waste into Nanostructured Carbon and Hydrogen Fuel Using Composite Magnetic Ferrite Catalysts. SCIENTIFICA 2024; 2024:3318047. [PMID: 38855033 PMCID: PMC11161267 DOI: 10.1155/2024/3318047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 04/17/2024] [Accepted: 05/11/2024] [Indexed: 06/11/2024]
Abstract
Finding new catalysts and pyrolysis technologies for efficiently recycling wasted plastics into fuels and structured solid materials of high selectivity is the need of time. Catalytic pyrolysis is a thermochemical process that cracks the feedstock in an inert gas environment into gaseous and liquid fuels and a residue. This study is conducted on microwave-assisted catalytic recycling of wasted plastics into nanostructured carbon and hydrogen fuel using composite magnetic ferrite catalysts. The composite ferrite catalysts, namely, NiZnFe2O4, NiMgFe2O4, and MgZnFe2O4 were produced through the coprecipitation method and characterized for onward use in the microwave-assisted valorization of wasted plastics. The ferrite nanoparticles worked as a catalyst and heat susceptor for uniformly distributed energy transfer from microwaves to the feedstock at a moderate temperature of 450°C. The type of catalyst and the working parameters significantly impacted the process efficiency, gas yield, and structural properties of the carbonaceous residue. The tested process took 2-8 minutes to pulverize feedstock into gas and carbon nanotubes (CNTs), depending on the catalyst type. The NiZnFe2O4-catalyzed process produced CNTs with good structural properties and fewer impurities compared to other catalysts. The NiMgFe2O4 catalyst performed better in terms of hydrogen evolution by showing 87.5% hydrogen (H2) composition in the evolved gases. Almost 90% of extractable hydrogen from the feedstock evolved during the first 2 minutes of the reaction.
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Affiliation(s)
- Bilal Shoukat
- Department of Physics, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan
| | - Hammad Hussain
- Department of Agricultural Engineering, Faculty of Agricultural Engineering & Technology, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan
| | - Muhammad Yasin Naz
- Department of Physics, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan
| | - Ahmed Ahmed Ibrahim
- Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box 2455, 11451 Riyadh, Saudi Arabia
| | - Shazia Shukrullah
- Department of Physics, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan
| | - Yasin Khan
- Department of Electrical Engineering, College of Engineering, King Saud University, Riyadh, Saudi Arabia
| | - Yaning Zhang
- School of Energy Science and Engineering, Harbin Institute of Technology (HIT), Harbin 150001, China
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Jiang Z, Liang Y, Guo F, Wang Y, Li R, Tang A, Tu Y, Zhang X, Wang J, Li S, Kong L. Microwave-Assisted Pyrolysis-A New Way for the Sustainable Recycling and Upgrading of Plastic and Biomass: A Review. CHEMSUSCHEM 2024:e202400129. [PMID: 38773732 DOI: 10.1002/cssc.202400129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 05/15/2024] [Accepted: 05/21/2024] [Indexed: 05/24/2024]
Abstract
The efficient utilization of organic solid waste resources can help reducing the consumption of conventional fossil fuels, mitigating environmental pollution, and achieving green sustainable development. Due to its dual nature of being both a resource and a source of pollution, it is crucial to implement suitable recycling technologies throughout the recycling and upgrading processes for plastics and biomass, which are organic solid wastes with complex mixture of components. The conventional pyrolysis and hydropyrolysis were summarized for recycling plastics and biomass into high-value fuels, chemicals, and materials. To enhance reaction efficiency and improve product selectivity, microwave-assisted pyrolysis was introduced to the upgrading of plastics and biomass through efficient energy supply especially with the aid of catalysts and microwave absorbers. This review provides a detail summary of microwave-assisted pyrolysis for plastics and biomass from the technical, applied, and mechanistic perspectives. Based on the recent technological advances, the future directions for the development of microwave-assisted pyrolysis technologies are predicted.
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Affiliation(s)
- Zhicheng Jiang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Yuan Liang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Fenfen Guo
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Yuxuan Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Ruikai Li
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Aoyi Tang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Youjing Tu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Xingyu Zhang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Junxia Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Shenggang Li
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, P. R. China
| | - Lingzhao Kong
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
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Zhang B, Li Y, Lu S, Hu Y, Li Y, Wang S, Liu J, Tang T, Li S. Co-, Ni-, and Cu-Doped Fe-Based Catalysts for the Microwave-Assisted Catalytic Pyrolysis of Polyethylene. CHEMSUSCHEM 2024; 17:e202301563. [PMID: 38361394 DOI: 10.1002/cssc.202301563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/12/2024] [Accepted: 02/15/2024] [Indexed: 02/17/2024]
Abstract
Environmental issues caused by waste polyethylene are becoming increasingly severe. Among potential treatment processes, microwave-assisted catalytic pyrolysis is promising for converting waste plastics into valuable products owing to its energy efficiency and environmental sustainability. Herein, a modified citric acid combustion method was used to prepare a series of metal oxide catalysts with loose porous structures. The prepared Fe-based catalysts doped with Co, Ni, or Cu were employed in the microwave-assisted catalytic pyrolysis of polyethylene. The bimetallic Co1Fe1Ox catalyst exhibited the best performance, yielding hydrogen at a rate of 60.7 mmol/gplastic. Further variation in the Co : Fe ratio revealed that the Co1Fe9Ox catalyst achieved the highest hydrogen production efficiency (63.64 mmol/gplastic). Similar oil-phase products were obtained over the various catalysts, as revealed by infrared spectroscopy and proton nuclear magnetic resonance spectroscopy. Furthermore, scanning electron microscopy (SEM) identified carbon nanotubes as the major solid product of pyrolysis, which were attached to the catalyst surface. Finally, a combination of thermogravimetric analysis, SEM, and energy-dispersive X-ray spectroscopy indicated that the reduction in catalytic activity following recycling was caused by the accumulation of carbonaceous products on the catalyst surface. Overall, Co1Fe9Ox catalysts were favorable for obtaining H2 and carbon nanotubes by the microwave-assisted pyrolysis of polyethylene.
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Affiliation(s)
- Bin Zhang
- Department of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, Liaoning, 110870, China
| | - Ya'nan Li
- Department of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, Liaoning, 110870, China
| | - Shuai Lu
- Department of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, Liaoning, 110870, China
| | - Yanbing Hu
- Department of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, Liaoning, 110870, China
| | - Yang Li
- Department of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, Liaoning, 110870, China
| | - Song Wang
- Department of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, Liaoning, 110870, China
| | - Jie Liu
- Department of State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Tao Tang
- Department of State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Sanxi Li
- Department of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, Liaoning, 110870, China
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Thacharodi A, Hassan S, Meenatchi R, Bhat MA, Hussain N, Arockiaraj J, Ngo HH, Sharma A, Nguyen HT, Pugazhendhi A. Mitigating microplastic pollution: A critical review on the effects, remediation, and utilization strategies of microplastics. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119988. [PMID: 38181686 DOI: 10.1016/j.jenvman.2023.119988] [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: 09/29/2023] [Revised: 12/23/2023] [Accepted: 12/28/2023] [Indexed: 01/07/2024]
Abstract
Microplastics are found ubiquitous in the natural environment and are an increasing source of worry for global health. Rapid industrialization and inappropriate plastic waste management in our daily lives have resulted in an increase in the amount of microplastics in the ecosystem. Microplastics that are <150 μm in size could be easily ingested by living beings and cause considerable toxicity. Microplastics can aggregate in living organisms and cause acute, chronic, carcinogenic, developmental, and genotoxic damage. As a result, a sustainable approach to reducing, reusing, and recycling plastic waste is required to manage microplastic pollution in the environment. However, there is still a significant lack of effective methods for managing these pollutants. As a result, the purpose of this review is to convey information on microplastic toxicity and management practices that may aid in the reduction of microplastic pollution. This review further insights on how plastic trash could be converted as value-added products, reducing the load of accumulating plastic wastes in the environment, and leading to a beneficial endeavor for humanity.
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Affiliation(s)
- Aswin Thacharodi
- Dr. Thacharodi's Laboratories, Department of Research and Development, Puducherry, 605005, India
| | - Saqib Hassan
- Department of Biotechnology, School of Bio and Chemical Engineering, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, 600119, India
| | - Ramu Meenatchi
- Department of Biotechnology, SRM Institute of Science and Technology, Faculty of Science and Humanities, Kattankulathur, Chengalpattu District, Tamil Nadu, 603 203, India
| | - Mansoor Ahmad Bhat
- Eskişehir Technical University, Faculty of Engineering, Department of Environmental Engineering, 26555, Eskişehir, Turkey
| | - Naseer Hussain
- School of Life Sciences, B. S. Abdur Rahman Crescent Institute of Science and Technology, Vandalur, Chennai, Tamil Nadu, 600048, India
| | - Jesu Arockiaraj
- Department of Biotechnology, SRM Institute of Science and Technology, Faculty of Science and Humanities, Kattankulathur, Chengalpattu District, Tamil Nadu, 603 203, India
| | - Huu Hao Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Ashutosh Sharma
- Tecnologico de Monterrey, Centre of Bioengineering, NatProLab, Plant Innovation Lab, School of Engineering and Sciences, Queretaro, 76130, Mexico
| | - H T Nguyen
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam; School of Engineering & Technology, Duy Tan University, Da Nang, Vietnam
| | - Arivalagan Pugazhendhi
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam; School of Engineering & Technology, Duy Tan University, Da Nang, Vietnam.
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