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Li Y, Yao T, Wang Y, Chen J, You H, Lu J, Xiong Y, Xiong Z, Liu J, Qi Y, Wang W, Wang D. Fully Floatable Mortise-and-Tenon Architecture for Synergistically Photo/Sono-Driven Evaporation Desalination and Plastic-Enabled Value-Added Co-Conversion of H 2O and CO 2. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2404423. [PMID: 38767186 PMCID: PMC11304291 DOI: 10.1002/advs.202404423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/09/2024] [Indexed: 05/22/2024]
Abstract
Establishing an advanced ecosystem incorporating freshwater harvesting, plastic utilization, and clean fuel acquisition is profoundly significant. However, low-efficiency evaporation, single energy utilization, and catalyst leakage severely hinder sustainable development. Herein, a nanofiber-based mortise-and-tenon structural Janus aerogel (MTSJA) is strategically designed in the first attempt and supports Z-scheme catalysts. By harnessing of the upper hydrophilic layer with hydrophilic channels embedding into the hydrophobic bottom layer to achieve tailoring bottom wettability states. MTSJA is capable of a fully-floating function for lower heat loss, water supply, and high-efficiency solar-to-vapor conversion. Benefiting from the ultrasonic cavitation effect and high sensitivity of materials to mechanical forces, this is also the first demonstration of synergistic solar and ultrasound fields to power simultaneous evaporation desalination and waste plastics as reusable substrates generating fuel energy. The system enables persistent desalination with an exceptional evaporation rate of 3.1 kg m-2 h-1 and 82.3% efficiency (21 wt.% NaCl solution and 1 sun), and realizes H2, CO, and CH4 yields with 16.1, 9.5, and 3 µmol h-1 g-1, respectively. This strategy holds great potential for desalination and plastics value-added transformation toward clean energy and carbon neutrality.
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Affiliation(s)
- Yingying Li
- Key Laboratory of Textile Fiber and ProductsMinistry of EducationWuhan Textile UniversityWuhan430200China
| | - Tongrong Yao
- Key Laboratory of Textile Fiber and ProductsMinistry of EducationWuhan Textile UniversityWuhan430200China
| | - Yanqiu Wang
- Key Laboratory of Textile Fiber and ProductsMinistry of EducationWuhan Textile UniversityWuhan430200China
| | - Jiahui Chen
- Key Laboratory of Textile Fiber and ProductsMinistry of EducationWuhan Textile UniversityWuhan430200China
| | - Haining You
- Key Laboratory of Textile Fiber and ProductsMinistry of EducationWuhan Textile UniversityWuhan430200China
| | - Jing Lu
- Key Laboratory of Textile Fiber and ProductsMinistry of EducationWuhan Textile UniversityWuhan430200China
| | - Yi Xiong
- Key Laboratory of Textile Fiber and ProductsMinistry of EducationWuhan Textile UniversityWuhan430200China
| | - Zhongduo Xiong
- Key Laboratory of Textile Fiber and ProductsMinistry of EducationWuhan Textile UniversityWuhan430200China
| | - Jia Liu
- Multifunctional Electronic Ceramics LaboratoryCollege of EngineeringXi'an International UniversityXi'an710077China
| | - Yajuan Qi
- College of ScienceWuhan University of Science and TechnologyWuhan430081China
| | - Wenwen Wang
- Key Laboratory of Textile Fiber and ProductsMinistry of EducationWuhan Textile UniversityWuhan430200China
| | - Dong Wang
- Key Laboratory of Textile Fiber and ProductsMinistry of EducationWuhan Textile UniversityWuhan430200China
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2
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Dinda S, Bhavana R, Behera S, Mondal B. Metal-free electrocatalytic upcycling of polyethylene terephthalate plastic to C 2 products. Chem Commun (Camb) 2024; 60:7777-7780. [PMID: 38976316 DOI: 10.1039/d4cc01609b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
Polyethylene terephthalate (PET) is one of the most used polymers, but the non-degradable and persistent nature of PET waste in the environment is a global menace. Hence upcycling PET waste becomes indispensable. Herein, we introduce the first metal-free electrochemical-upcycling of PET into value-added chemicals and H2 fuel using an organo-electrocatalyst (2,2,6,6-Tetramethylpiperidin-1-yl)oxyl (TEMPO). Electrolysis at pH 10 produces glycolate and oxalate exclusively while at pH 14, over-oxidation and subsequent C-C bond cleavage produce formate and carbonate as well. Tuning the rate and product selectivity via pH regulation with mechanistic insight displays a sustainable route to implement waste PET recycling.
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Affiliation(s)
- Soumitra Dinda
- Department of Chemistry, IIT Gandhinagar, Palaj, Gandhinagar-382355, Gujarat, India.
| | - R Bhavana
- Department of Chemistry, IIT Gandhinagar, Palaj, Gandhinagar-382355, Gujarat, India.
| | - Snehanjali Behera
- Department of Chemistry, IIT Gandhinagar, Palaj, Gandhinagar-382355, Gujarat, India.
| | - Biswajit Mondal
- Department of Chemistry, IIT Gandhinagar, Palaj, Gandhinagar-382355, Gujarat, India.
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3
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Wang Z, Song J, Zhang H, Deng K, Yu H, Xu Y, Wang H, Wang L. Electrocatalytic Valorization of Nitrate and Polyester Plastic for Simultaneous Production of Ammonia and Glycolic Acid. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404124. [PMID: 39016131 DOI: 10.1002/smll.202404124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 07/04/2024] [Indexed: 07/18/2024]
Abstract
Electrochemical upcycling of nitrate and polyester plastic into valuable products is an ideal solution to realize the resource utilization. Here, the co-production of ammonia (NH3) and glycolic acid (GA) via electrochemical upcycling of nitrate and polyethylene terephthalate (PET) plastics over mesoporous Pd3Au film on Ni foam (mPd3Au/NF), which is synthesized by micelle-assisted replacement method, is proposed. The mPd3Au/NF with well-developed mesoporous structure provides abundant active sites and facilitated transfer channels and strong electronic effect. As such, the mPd3Au/NF exhibits high Faraday efficiencies of 97.28% and 95.32% at 0.9 V for the formation of NH3 and GA, respectively. Theoretical results indicate that the synergistic effect of Pd and Au can optimize adsorption energy of key intermediates *NOH and *OCH2-CH2OH on active sites and increase bond energy of C─C band, thereby improving the activity and selectivity for the formation of NH3 and GA. This work proposes a promising strategy for the simultaneous conversation of nitrate and PET plastic into high-value NH3 and GA.
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Affiliation(s)
- Ziqiang Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Jiale Song
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Hugang Zhang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Kai Deng
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Hongjie Yu
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - You Xu
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Hongjing Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Liang Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
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4
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Kang H, He D, Turchiano C, Yan X, Chai J, Weed M, Elliott GI, Onofrei D, Pan X, Xiao X, Gu J. Mining the Carbon Intermediates in Plastic Waste Upcycling for Constructing C-S Bond. J Am Chem Soc 2024; 146:18639-18649. [PMID: 38916586 PMCID: PMC11240564 DOI: 10.1021/jacs.4c05512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Postconsumer plastics are generally perceived as valueless with only a small portion of plastic waste being closed-loop recycled into similar products while most of them are discarded in landfills. Depositing plastic waste in landfills not only harms the environment but also signifies a substantial economic loss. Alternatively, constructing value-added chemical feedstocks via mining the waste-derived intermediate species as a carbon (C) source under mild electrochemical conditions is a sustainable strategy to realize the circular economy. This proof-of-concept work provides an attractive "turning trash to treasure" strategy by integrating electrocatalytic polyethylene terephthalate (PET) plastic upcycling with a chemical C-S coupling reaction to synthesize organosulfur compounds, hydroxymethanesulfonate (HMS). HMS can be produced efficiently (Faradaic efficiency, FE of ∼70%) via deliberately capturing electrophilic intermediates generated in the PET monomer (ethylene glycol, EG) upcycling process, followed by coupling them with nucleophilic sulfur (S) species (i.e., SO32- and HSO3-). Unlike many previous studies conducted under alkaline conditions, PET upcycling was performed over an amorphous MnO2 catalyst under near-neutral conditions, allowing for the stabilization of electrophilic intermediates. The compatibility of this strategy was further investigated by employing biomass-derived compounds as substrates. Moreover, comparable HMS yields can be achieved with real-world PET plastics, showing its enormous potential in practical application. Lastly, Density function theory (DFT) calculation reveals that the C-C cleavage step of EG is the rate-determining step (RDS), and amorphous MnO2 significantly decreases the energy barriers for both RDS and C-S coupling when compared to the crystalline counterpart.
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Affiliation(s)
- Hongxing Kang
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - Dong He
- Department of Physics, Wuhan University, Wuhan, Hubei 430072, China
| | - Christopher Turchiano
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - Xingxu Yan
- Department of Materials Science and Engineering, University of California, Irvine, California 92697, United States
| | - Jingtong Chai
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - Melanie Weed
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - Gregory I Elliott
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - David Onofrei
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - Xiaoqing Pan
- Department of Materials Science and Engineering, University of California, Irvine, California 92697, United States
- Department of Physics and Astronomy, University of California, Irvine Irvine, California 92697, United States
| | - Xiangheng Xiao
- Department of Physics, Wuhan University, Wuhan, Hubei 430072, China
| | - Jing Gu
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182, United States
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5
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Li J, Wu C, Wang Z, Meng H, Zhang Q, Tang Y, Zou A, Zhang Y, Zhong H, Xi S, Xue J, Wang X, Wu J. Unveiling the Pivotal Role of d x2-y2 Electronic States in Nickel-Based Hydroxide Electrocatalysts for Methanol Oxidation. Angew Chem Int Ed Engl 2024; 63:e202404730. [PMID: 38618864 DOI: 10.1002/anie.202404730] [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: 03/08/2024] [Revised: 04/04/2024] [Accepted: 04/13/2024] [Indexed: 04/16/2024]
Abstract
The anodic methanol oxidation reaction (MOR) plays a crucial role in coupling with the cathodic hydrogen evolution reaction (HER) and enables the sustainable production of the high-valued formate. Nickel-based hydroxide (Ni(OH)2) as MOR electrocatalyst has attracted enormous attention. However, the key factor determining the intrinsic catalytic activity remains unknown, which significantly hinders the further development of Ni(OH)2 electrocatalyst. Here, we found that thed x 2 - y 2 ${{d}_{{x}^{2}-{y}^{2}}}$ electronic state within antibonding bands plays a decisive role in the whole MOR process. The onset potential depends on the deprotonation ability (Ni2+ to Ni3+), which was closely related to the band center ofd x 2 - y 2 ${{d}_{{x}^{2}-{y}^{2}}}$ orbital. The closer ofd x 2 - y 2 ${{d}_{{x}^{2}-{y}^{2}}}$ orbital to the Fermi level showed the stronger the deprotonation ability. Meanwhile, in the high potential region, the broadening ofd x 2 - y 2 ${{d}_{{x}^{2}-{y}^{2}}}$ orbital would facilitate the electron transfer from methanol to catalysts (Ni3+ to Ni2+), further enhancing the catalytic properties. Our work for the first time clarifies the intrinsic relationship betweend x 2 - y 2 ${{d}_{{x}^{2}-{y}^{2}}}$ electronic state and the MOR activities, which adds a new layer of understanding to the methanol electrooxidation research scene.
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Affiliation(s)
- Junhua Li
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Chao Wu
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
- Institute of Sustainability for Chemical, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road Jurong Island, Singapore, 627833, Republic of Singapore
| | - Zhen Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Haoyan Meng
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Qi Zhang
- Department of Materials Science and Engineering, National University of Singapore, 117575, Singapore
| | - Ying Tang
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Anqi Zou
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Yiming Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Haoyin Zhong
- Department of Materials Science and Engineering, National University of Singapore, 117575, Singapore
| | - Shibo Xi
- Institute of Sustainability for Chemical, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road Jurong Island, Singapore, 627833, Republic of Singapore
| | - Junmin Xue
- Department of Materials Science and Engineering, National University of Singapore, 117575, Singapore
| | - Xiaopeng Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
- Department of Materials Science and Engineering, National University of Singapore, 117575, Singapore
- State Key Laboratory of Intelligent Construction and Healthy Operation, Maintenance of Deep Underground Engineering, Sichuan University, Chengdu, 610065, China
- Tefusen Semiconductor & Hydrogen Energy Technology (Yunnan) Co., Ltd, Wenshan Zhuang and Miao Autonomous Prefecture, Yunnan, China, 663200
| | - Jiagang Wu
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
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6
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Yang J, Li Z, Xu Q, Liu W, Gao S, Qin P, Chen Z, Wang A. Towards carbon neutrality: Sustainable recycling and upcycling strategies and mechanisms for polyethylene terephthalate via biotic/abiotic pathways. ECO-ENVIRONMENT & HEALTH 2024; 3:117-130. [PMID: 38638172 PMCID: PMC11021832 DOI: 10.1016/j.eehl.2024.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 01/09/2024] [Accepted: 01/25/2024] [Indexed: 04/20/2024]
Abstract
Polyethylene terephthalate (PET), one of the most ubiquitous engineering plastics, presents both environmental challenges and opportunities for carbon neutrality and a circular economy. This review comprehensively addressed the latest developments in biotic and abiotic approaches for PET recycling/upcycling. Biotically, microbial depolymerization of PET, along with the biosynthesis of reclaimed monomers [terephthalic acid (TPA), ethylene glycol (EG)] to value-added products, presents an alternative for managing PET waste and enables CO2 reduction. Abiotically, thermal treatments (i.e., hydrolysis, glycolysis, methanolysis, etc.) and photo/electrocatalysis, enabled by catalysis advances, can depolymerize or convert PET/PET monomers in a more flexible, simple, fast, and controllable manner. Tandem abiotic/biotic catalysis offers great potential for PET upcycling to generate commodity chemicals and alternative materials, ideally at lower energy inputs, greenhouse gas emissions, and costs, compared to virgin polymer fabrication. Remarkably, over 25 types of upgraded PET products (e.g., adipic acid, muconic acid, catechol, vanillin, and glycolic acid, etc.) have been identified, underscoring the potential of PET upcycling in diverse applications. Efforts can be made to develop chemo-catalytic depolymerization of PET, improve microbial depolymerization of PET (e.g., hydrolysis efficiency, enzymatic activity, thermal and pH level stability, etc.), as well as identify new microorganisms or hydrolases capable of degrading PET through computational and machine learning algorithms. Consequently, this review provides a roadmap for advancing PET recycling and upcycling technologies, which hold the potential to shape the future of PET waste management and contribute to the preservation of our ecosystems.
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Affiliation(s)
- Jiaqi Yang
- School of Civil & Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Zhiling Li
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Qiongying Xu
- School of Civil & Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Wenzong Liu
- School of Civil & Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Shuhong Gao
- School of Civil & Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Peiwu Qin
- Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Tsinghua-Berkeley Shenzhen Institute, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Zhenglin Chen
- Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Tsinghua-Berkeley Shenzhen Institute, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Aijie Wang
- School of Civil & Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
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7
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Wang J, Li X, Zhang T, Chai X, Xu M, Feng M, Cai C, Chen Z, Qian X, Zhao Y. Photovoltaic-driven Ni(ii)/Ni(iii) redox mediator for the valorization of PET plastic waste with hydrogen production. Chem Sci 2024; 15:7596-7602. [PMID: 38784748 PMCID: PMC11110143 DOI: 10.1039/d4sc01613k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 04/11/2024] [Indexed: 05/25/2024] Open
Abstract
Electrocatalytic valorization of PET plastic waste provides an appealing route by converting intermittent renewable energy into valuable chemicals and high-energy fuels. Normally, anodic PET hydrolysate oxidation and cathodic water reduction reactions occur simultaneously in the same time and space, which increases the challenges for product separation and operational conditions. Although these problems can be addressed by utilizing membranes or diaphragms, the parasitic cell resistance and high overall cost severely restrict their future application. Herein, we introduce a Ni(ii)/Ni(iii) redox mediator to decouple these reactions into two independent processes: an electrochemical process for water reduction to produce hydrogen fuel assisted by the oxidation of the Ni(OH)2 electrode into the NiOOH counterpart, followed subsequently by a spontaneous chemical process for the valorization of PET hydrolysate to produce formic acid with a high faradaic efficiency of ∼96% by the oxidized NiOOH electrode. This decoupling strategy enables the electrochemical valorization of PET plastic waste in a membrane-free system to produce high-value formic acid and high-purity hydrogen production. This study provides an appealing route to facilitate the transformation process of PET plastic waste into high-value products with high efficiency, low cost and high purity.
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Affiliation(s)
- Jianying Wang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University 800 Dongchuan Rd. Shanghai 200240 China
- School of Chemical Science and Engineering, Tongji University 1239 Siping Rd. Shanghai 200092 China
| | - Xin Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University 800 Dongchuan Rd. Shanghai 200240 China
| | - Ting Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University 800 Dongchuan Rd. Shanghai 200240 China
| | - Xinyu Chai
- School of Environmental Science and Engineering, Shanghai Jiao Tong University 800 Dongchuan Rd. Shanghai 200240 China
| | - Mingze Xu
- School of Chemical Science and Engineering, Tongji University 1239 Siping Rd. Shanghai 200092 China
| | - Menglei Feng
- School of Environmental Science and Engineering, Shanghai Jiao Tong University 800 Dongchuan Rd. Shanghai 200240 China
| | - Chengcheng Cai
- School of Environmental Science and Engineering, Shanghai Jiao Tong University 800 Dongchuan Rd. Shanghai 200240 China
| | - Zuofeng Chen
- School of Chemical Science and Engineering, Tongji University 1239 Siping Rd. Shanghai 200092 China
| | - Xufang Qian
- School of Environmental Science and Engineering, Shanghai Jiao Tong University 800 Dongchuan Rd. Shanghai 200240 China
| | - Yixin Zhao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University 800 Dongchuan Rd. Shanghai 200240 China
- State Key Lab of Metal Matrix Composite, Shanghai Jiao Tong University 800 Dongchuan Rd. Shanghai 200240 China
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8
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Li J, Ma HP, Zhao G, Huang G, Sun W, Peng C. Plastic Waste Conversion by Leveraging Renewable Photo/Electro-Catalytic Technologies. CHEMSUSCHEM 2024; 17:e202301352. [PMID: 38226954 DOI: 10.1002/cssc.202301352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 12/26/2023] [Accepted: 01/15/2024] [Indexed: 01/17/2024]
Abstract
Plastics have revolutionized our lives; however, the exponential growth of their usage has led to a global crisis. More sustainable strategies are needed to address this dilemma and transform the plastics economy from a linearity to a circular model. Herein, we systematically summarize the recent progress in renewable energy-driven plastic conversion strategies, including photocatalysis, electrocatalysis, and their integration. By introducing the significant works, the design principles, mechanisms, and system regulations, we decipher and compare the various aspects of plastic conversion. These approaches show high reactivity and selectivity under environmentally benign conditions and provide alternative reaction pathways for plastic conversion. Plastic upcycling as a chemical feedstock can yield value-added chemicals and fuels, contributing to the establishment of a sustainable and circular economy. Additionally, several innovations in reaction engineering and system designs are presented. Finally, the challenges and perspectives of sustainable energy-driven plastic conversion technologies are comprehensively discussed.
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Affiliation(s)
- Jianan Li
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
- Zhejiang Tiandi Environmental Protection Technology Co., Ltd., Hangzhou, 311121, P. R. China
| | - Hong-Peng Ma
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Shaan Xi, 710072, P. R. China
| | - Guoping Zhao
- Zhejiang Tiandi Environmental Protection Technology Co., Ltd., Hangzhou, 311121, P. R. China
| | - Guangfa Huang
- Zhejiang Tiandi Environmental Protection Technology Co., Ltd., Hangzhou, 311121, P. R. China
| | - Wenbo Sun
- School of Resources and Environmental Engineering, Shandong University of Technology, Zibo, 255000, P. R. China
| | - Chong Peng
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
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9
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Kang H, He D, Yan X, Dao B, Williams NB, Elliott GI, Streater D, Nyakuchena J, Huang J, Pan X, Xiao X, Gu J. Cu Promoted the Dynamic Evolution of Ni-Based Catalysts for Polyethylene Terephthalate Plastic Upcycling. ACS Catal 2024; 14:5314-5325. [PMID: 38601783 PMCID: PMC11002824 DOI: 10.1021/acscatal.3c05509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 03/09/2024] [Accepted: 03/11/2024] [Indexed: 04/12/2024]
Abstract
Upcycling plastic wastes into value-added chemicals is a promising approach to put end-of-life plastic wastes back into their ecocycle. As one of the polyesters that is used daily, polyethylene terephthalate (PET) plastic waste is employed here as the model substrate. Herein, a nickel (Ni)-based catalyst was prepared via electrochemically depositing copper (Cu) species on Ni foam (NiCu/NF). The NiCu/NF formed Cu/CuO and Ni/NiO/Ni(OH)2 core-shell structures before electrolysis and reconstructed into NiOOH and CuOOH/Cu(OH)2 active species during the ethylene glycol (EG) oxidation. After oxidation, the Cu and Ni species evolved into more reduced species. An indirect mechanism was identified as the main EG oxidation (EGOR) mechanism. In EGOR, NiCu60s/NF catalyst exhibited an optimal Faradaic efficiency (FE, 95.8%) and yield rate (0.70 mmol cm-2 h-1) for formate production. Also, over 80% FE of formate was achieved when a commercial PET plastic powder hydrolysate was applied. Furthermore, commercial PET plastic water bottle waste was employed as a substrate for electrocatalytic upcycling, and pure terephthalic acid (TPA) was recovered only after 1 h electrolysis. Lastly, density functional theory (DFT) calculation revealed that the key role of Cu was significantly reducing the Gibbs free-energy barrier (ΔG) of EGOR's rate-determining step (RDS), promoting catalysts' dynamic evolution, and facilitating the C-C bond cleavage.
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Affiliation(s)
- Hongxing Kang
- Department
of Chemistry and Biochemistry, San Diego
State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - Dong He
- Department
of Physics, Wuhan University, Wuhan, Hubei 430072, China
| | - Xingxu Yan
- Department
of Materials Science and Engineering, University
of California, Irvine, California 92697, United States
| | - Benjamin Dao
- Department
of Chemistry, California State University,
Long Beach, Long Beach, California 90840, United States
| | - Nicholas B. Williams
- Department
of Chemistry and Biochemistry, San Diego
State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - Gregory I. Elliott
- Department
of Chemistry and Biochemistry, San Diego
State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - Daniel Streater
- Department
of Chemistry, Marquette University, Milwaukee, Wisconsin 53201, United States
| | - James Nyakuchena
- Department
of Chemistry, Marquette University, Milwaukee, Wisconsin 53201, United States
| | - Jier Huang
- Department
of Chemistry, Marquette University, Milwaukee, Wisconsin 53201, United States
| | - Xiaoqing Pan
- Department
of Materials Science and Engineering, University
of California, Irvine, California 92697, United States
- Department
of Physics and Astronomy, University of
California, Irvine, Irvine, California 92697, United States
| | - Xiangheng Xiao
- Department
of Physics, Wuhan University, Wuhan, Hubei 430072, China
| | - Jing Gu
- Department
of Chemistry and Biochemistry, San Diego
State University, 5500 Campanile Drive, San Diego, California 92182, United States
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10
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Zhao X, Kuang C, Liu H, An C, Wang M, Mu T. Spent Lithium-Ion Batteries Derived Co 3O 4 for Electrocatalytic Polyethylene Terephthalate Plastic Recycling. CHEMSUSCHEM 2024:e202400105. [PMID: 38536230 DOI: 10.1002/cssc.202400105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/05/2024] [Indexed: 04/19/2024]
Abstract
Spent lithium-ion batteries (LIBs) are an essential secondary resource containing valuable metal elements. Transforming spent LIBs into efficient catalysts through a simple process presents a promising strategy to address both metal resource scarcity and clean energy challenges. Herein, a deep eutectic solvent-assisted synthesis of Co3O4 material from spent LIBs is proposed. The obtained Co3O4 material possesses efficient and stable electrocatalytic activity for converting raw polyethylene terephthalate (PET) bottles into high-purity formic acid and terephthalic acid products under ambient conditions. As expected, the Co3O4 catalyst exhibits a high FE of 92 % with a concentration of produced potassium formate of 23.6 mM under alkaline conditions. This study presents a waste-treating-waste strategy for the simultaneous recovery of spent LIBs and PET waste in a greener manner.
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Affiliation(s)
- Xinhui Zhao
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, 222005, Lianyungang, Jiangsu, China
- Jiangsu Institute of Marine Resources Development, 222005, Lianyungang, Jiangsu, China
| | - Cheng Kuang
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, 222005, Lianyungang, Jiangsu, China
| | - Hongshu Liu
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, 222005, Lianyungang, Jiangsu, China
| | - Chaopeng An
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, 222005, Lianyungang, Jiangsu, China
| | - Mingyan Wang
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, 222005, Lianyungang, Jiangsu, China
| | - Tiancheng Mu
- Department of Chemistry, Renmin University of China, 100872, Beijing, China
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11
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Song M, Wu Y, Zhao Z, Zheng M, Wang C, Lu J. Corrosion Engineering of Part-Per-Million Single Atom Pt 1/Ni(OH) 2 Electrocatalyst for PET Upcycling at Ampere-Level Current Density. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2403234. [PMID: 38504525 DOI: 10.1002/adma.202403234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Indexed: 03/21/2024]
Abstract
The plastic waste issue has posed a series of formidable challenges for the ecological environment and human health. While conventional recycling strategies often lead to plastic down-cycling, the electrochemical strategy of recovering valuable monomers enables an ideal, circular plastic economy. Here a corrosion synthesized single atom Pt1/Ni(OH)2 electrocatalyst with part-per-million noble Pt loading for highly efficient and selective upcycling of polyethylene terephthalate (PET) into valuable chemicals (potassium diformate and terephthalic acid) and green hydrogen is reported. Electro-oxidation of PET hydrolysate, ethylene glycol (EG), to formate is processed with high Faraday efficiency (FE) and selectivity (>90%) at the current density close to 1000 mA cm-2 (1.444 V vs RHE). The in situ spectroscopy and density functional theory calculations provide insights into the mechanism and the understanding of the high efficiency. Remarkably, the electro-oxidation of EG at the ampere-level current density is also successfully illustrated by using a membrane-electrode assembly with high FEs to formate integrated with hydrogen production for 500 h of continuous operation. This process allows valuable chemical production at high space-time yield and is highly profitable (588-700 $ ton-1 PET), showing an industrial perspective on single-atom catalysis of electrochemical plastic upcycling.
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Affiliation(s)
- Minwei Song
- Institute of Circular Economy, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Yufeng Wu
- Institute of Circular Economy, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Ziyi Zhao
- Institute of Circular Economy, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Mengting Zheng
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Changlong Wang
- Institute of Circular Economy, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Jun Lu
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA
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12
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Lou X, Liu F, Li Q, Chu M, Wang G, Chen J, Cao M. Advances in solar-driven, electro/photoelectrochemical, and microwave-assisted upcycling of waste polyesters. Chem Commun (Camb) 2024; 60:2828-2838. [PMID: 38362916 DOI: 10.1039/d3cc05930h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Plastic waste in the environment causes significant environmental pollution. The potential of using chemical methods for upcycling plastic waste offers a dual solution to ensure resource sustainability and environmental restoration. This article provides a comprehensive overview of the latest technologies driven by solar-driven, electro/photoelectrochemical-catalytic, and microwave-assisted methods for the conversion of plastics into various valuable chemicals. It emphasizes selective conversion during the plastic transformation process, elucidates reaction pathways, and optimizes product selectivity. Finally, the article offers insights into the future developments of chemical upcycling of polyesters.
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Affiliation(s)
- Xiangxi Lou
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Fangyue Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Qingye Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Mingyu Chu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Guiling Wang
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Jinxing Chen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Muhan Cao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China.
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13
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Jiang M, Wang X, Xi W, Yang P, Zhou H, Duan J, Ratova M, Wu D. Chemical catalytic upgrading of polyethylene terephthalate plastic waste into value-added materials, fuels and chemicals. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169342. [PMID: 38123093 DOI: 10.1016/j.scitotenv.2023.169342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/18/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023]
Abstract
The substantial production of polyethylene terephthalate (PET) products, coupled with high abandonment rates, results in significant environmental pollution and resource wastage. This has prompted global attention to the development of rational strategies for PET waste treatment. In the context of renewability and sustainability, catalytic chemical technology provides an effective means to recycle and upcycle PET waste into valuable resources. In this review, we initially provide an overview of strategies employed in the thermocatalytic process to recycle PET waste into valuable carbon materials, fuels and typical refined chemicals. The effect of catalysts on the quality and quantity of specific products is highlighted. Next, we introduce the development of renewable-energy-driven electrocatalytic and photocatalytic systems for sustainable PET waste upcycling, focusing on rational catalysts, innovative catalytic system design, and corresponding underlying catalytic mechanisms. Moreover, we discuss advantages and disadvantages of three chemical catalytic strategies. Finally, existing limitations and outlook toward controllable selectivity and yield enhancement of value-added products and PET upvaluing technology for scale-up applications are proposed. This review aims to inspire the exploration of waste-to-treasure technologies for renewable-energy-driven waste management toward a circular economy.
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Affiliation(s)
- Mingkun Jiang
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Hubei Key Laboratory of Plasma Chemistry and New Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, Hubei, PR China
| | - Xiali Wang
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Hubei Key Laboratory of Plasma Chemistry and New Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, Hubei, PR China
| | - Wanlong Xi
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Hubei Key Laboratory of Plasma Chemistry and New Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, Hubei, PR China
| | - Peng Yang
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Hubei Key Laboratory of Plasma Chemistry and New Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, Hubei, PR China
| | - Hexin Zhou
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Hubei Key Laboratory of Plasma Chemistry and New Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, Hubei, PR China
| | - Junyuan Duan
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Hubei Key Laboratory of Plasma Chemistry and New Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, Hubei, PR China
| | - Marina Ratova
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK
| | - Dan Wu
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Hubei Key Laboratory of Plasma Chemistry and New Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, Hubei, PR China.
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14
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Chang J, Wang L, Wu D, Xu F, Jiang K, Guo Y, Gao Z. Concurrent electrocatalytic hydrogen evolution and polyethylene terephthalate plastics reforming by self-supported amorphous cobalt iron phosphide electrode. J Colloid Interface Sci 2024; 655:555-564. [PMID: 37952459 DOI: 10.1016/j.jcis.2023.11.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 10/31/2023] [Accepted: 11/07/2023] [Indexed: 11/14/2023]
Abstract
The electrocatalytic hydrogen evolution reaction (HER) coupled with oxidative transformation of plastics into commodity chemical is a promising tactic to relieve the energy shortage and white pollution problems via sustainable and profitable manner, which necessitates highly active bifunctional catalytic electrode and meticulous construction of electrolysis system. Herein, a self-supported amorphous cobalt iron phosphide onto nickel foam (NF) substrate, labeled as CoFe-P/NF, was prepared by electrodeposition, which served as bifunctional catalytic electrode for alkali hydrogen evolution reaction (HER) and selective electrooxidation of polyethylene terephthalate (PET) plastic hydrolysate toward formate. Benefiting from the abundant catalytic sites within amorphous structure, the interelement synergy and sufficient exposure of catalyst to electrolyte, the self-supported CoFe-P/NF electrode displayed low overpotential (η100 of 168 mV at current density of J = 100 mA cm-2), decent stability for HER and fine tolerance to PET monomers. The CoFe-P/NF electrode could also catalyze selective electrooxidation of ethylene glycol (EG) component in PET hydrolysate to formate with high productivity (0.1 mmol cm-2h-1) and faradaic efficiency (FE, 90 %) at 1.5 V. The PET hydrolysate electrolysis system based on CoFe-P/NF enabled coproduction of H2 and value added formate at lower voltage (1.52 V at J = 20 mA cm-2) and energy consumption (84 % at J = 200 mA cm-2) relative to water electrolysis. This work showcases the coproduction of H2 fuel and formate by electrolysis of PET hydrolysate via rational design of bifunctional catalytic electrode. We believe such type of versatile catalytic electrodes can find application scenarios in electrosynthesis of more commodity chemicals and energy devices beyond the case herein.
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Affiliation(s)
- Jiuli Chang
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Henan Xinxiang 453007, PR China
| | - Lili Wang
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Henan Xinxiang 453007, PR China
| | - Dapeng Wu
- Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environment Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Province, School of Environment, Henan Normal University, Henan Xinxiang 453007, PR China
| | - Fang Xu
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Henan Xinxiang 453007, PR China
| | - Kai Jiang
- Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environment Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Province, School of Environment, Henan Normal University, Henan Xinxiang 453007, PR China.
| | - Yuming Guo
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Henan Xinxiang 453007, PR China.
| | - Zhiyong Gao
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Henan Xinxiang 453007, PR China.
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15
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Zhuo M, Chen Z, Liu X, Wei W, Shen Y, Ni BJ. A broad horizon for sustainable catalytic oxidation of microplastics. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 340:122835. [PMID: 37931676 DOI: 10.1016/j.envpol.2023.122835] [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: 03/31/2023] [Revised: 10/10/2023] [Accepted: 10/29/2023] [Indexed: 11/08/2023]
Abstract
Microplastics (MPs) have attracted tremendous attention due to their widespread appearance in the environment and biota, and their adverse effects on organisms. Since plastics are substantially produced to meet human needs, primary and secondary MPs are extensively trapped in wastewater treatment plants, freshwater, drinking water, ocean, air, and soil. The serious MPs pollution calls for efficient treatment strategies Herein, we discuss three catalytic processes (photocatalysis, electrocatalysis, and biocatalysis) for the sustainable management of MPs, and the relevant catalytic mechanisms are clarified. For photocatalysis, three categories (organic, inorganic, hybrid) of photocatalysts are listed, with degradation efficiency of 23%-100%. Next, relative impact factors on photocatalysis, such as characteristics of MPs and photocatalysts, are discussed. Then, some promising electrocatalysts for the degradation/conversion of (micro)plastics and standard electrolyzer designs are briefly introduced. This electrocatalytic method has achieved over 77% of Faradaic efficiency. Next, potential organisms with abundant biocatalysts for degrading different types of MPs are reviewed. Advances in three bioremediation techniques including biositimulation, bioaugmentation, and biosurfactant are outlined. Lastly, perspectives are put forward to promote scientific development in solving environmental issues on MPs pollution in broad fields. This paper provides insights into the development of next-generation techniques for MPs pollution management in a sustainable manner.
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Affiliation(s)
- Maoshui Zhuo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW, 2007, Australia
| | - Zhijie Chen
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW, 2007, Australia
| | - Xiaoqing Liu
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW, 2007, Australia
| | - Wei Wei
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW, 2007, Australia
| | - Yansong Shen
- School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Bing-Jie Ni
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW, 2007, Australia; School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia.
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16
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Kang H, Washington A, Capobianco MD, Yan X, Cruz VV, Weed M, Johnson J, Johns G, Brudvig GW, Pan X, Gu J. Concentration-Dependent Photocatalytic Upcycling of Poly(ethylene terephthalate) Plastic Waste. ACS MATERIALS LETTERS 2023; 5:3032-3041. [PMID: 37969139 PMCID: PMC10630977 DOI: 10.1021/acsmaterialslett.3c01134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 10/10/2023] [Indexed: 11/17/2023]
Abstract
Photocatalytic plastic waste upcycling into value-added feedstock is a promising way to mitigate the environmental issues caused by the nondegradable nature of plastic waste. Here, we developed a MoS2/g-C3N4 photocatalyst that can efficiently upcycle poly(ethylene terephthalate) (PET) into valuable organic chemicals. Interestingly, the conversion mechanism is concentration-dependent. For instance, at a low ethylene glycol (EG) concentration (7.96 mM), acetate is the main product. Unexpectedly, the conversion of PET water bottle hydrolysate with only 7.96 mM ethylene glycol (EG) can produce a 4 times higher amount of acetate (704.59 nmol) than the conversion of 300 mM EG (174.50 nmol), while at a higher EG concentration (300 mM), formate is the dominant product. Herein, a 40 times higher EG concentration (300 mM compared to 7.96 mM) would produce only ∼3 times more formate (179 nmol compared to 51.86 nmol). In addition, under natural sunlight conditions, comparable amounts of liquid and gaseous products are produced when commercial PET plastics are employed. Overall, the photocatalytic PET conversion process is quite efficient under a low concentration of EG in PET hydrolysate, indicating the enormous potential of this photocatalysis strategy for real plastics upcycling.
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Affiliation(s)
- Hongxing Kang
- Department
of Chemistry and Biochemistry, San Diego
State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - Audrey Washington
- Department
of Chemistry and Biochemistry, San Diego
State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - Matt D. Capobianco
- Department
of Chemistry and Yale Energy Sciences Institute, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Xingxu Yan
- Department
of Materials Science and Engineering, University
of California, Irvine, Irvine, California 92697, United States
| | - Vayle Vera Cruz
- Department
of Chemistry and Biochemistry, San Diego
State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - Melanie Weed
- Department
of Chemistry and Biochemistry, San Diego
State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - Jackie Johnson
- Department
of Chemistry and Biochemistry, San Diego
State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - Gonto Johns
- Department
of Chemistry and Biochemistry, San Diego
State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - Gary W. Brudvig
- Department
of Chemistry and Yale Energy Sciences Institute, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Xiaoqing Pan
- Department
of Materials Science and Engineering, University
of California, Irvine, Irvine, California 92697, United States
- Department
of Physics and Astronomy, University of
California, Irvine, Irvine, California 92697, United States
| | - Jing Gu
- Department
of Chemistry and Biochemistry, San Diego
State University, 5500 Campanile Drive, San Diego, California 92182, United States
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17
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Chen Z, Zheng R, Bao T, Ma T, Wei W, Shen Y, Ni BJ. Dual-Doped Nickel Sulfide for Electro-Upgrading Polyethylene Terephthalate into Valuable Chemicals and Hydrogen Fuel. NANO-MICRO LETTERS 2023; 15:210. [PMID: 37695408 PMCID: PMC10495299 DOI: 10.1007/s40820-023-01181-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 08/10/2023] [Indexed: 09/12/2023]
Abstract
Electro-upcycling of plastic waste into value-added chemicals/fuels is an attractive and sustainable way for plastic waste management. Recently, electrocatalytically converting polyethylene terephthalate (PET) into formate and hydrogen has aroused great interest, while developing low-cost catalysts with high efficiency and selectivity for the central ethylene glycol (PET monomer) oxidation reaction (EGOR) remains a challenge. Herein, a high-performance nickel sulfide catalyst for plastic waste electro-upcycling is designed by a cobalt and chloride co-doping strategy. Benefiting from the interconnected ultrathin nanosheet architecture, dual dopants induced up-shifting d band centre and facilitated in situ structural reconstruction, the Co and Cl co-doped Ni3S2 (Co, Cl-NiS) outperforms the single-doped and undoped analogues for EGOR. The self-evolved sulfide@oxyhydroxide heterostructure catalyzes EG-to-formate conversion with high Faradic efficiency (> 92%) and selectivity (> 91%) at high current densities (> 400 mA cm-2). Besides producing formate, the bifunctional Co, Cl-NiS-assisted PET hydrolysate electrolyzer can achieve a high hydrogen production rate of 50.26 mmol h-1 in 2 M KOH, at 1.7 V. This study not only demonstrates a dual-doping strategy to engineer cost-effective bifunctional catalysts for electrochemical conversion processes, but also provides a green and sustainable way for plastic waste upcycling and simultaneous energy-saving hydrogen production.
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Affiliation(s)
- Zhijie Chen
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Renji Zheng
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, People's Republic of China.
| | - Teng Bao
- School of Biology, Food and Environment Engineering, Hefei University, Hefei, 230601, People's Republic of China
| | - Tianyi Ma
- School of Science, STEM College, RMIT University, Melbourne, VIC, 3000, Australia
| | - Wei Wei
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Yansong Shen
- School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Bing-Jie Ni
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia.
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18
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Du M, Zhang Y, Kang S, Xu C, Ma Y, Cai L, Zhu Y, Chai Y, Qiu B. Electrochemical Production of Glycolate Fuelled By Polyethylene Terephthalate Plastics with Improved Techno-Economics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303693. [PMID: 37231558 DOI: 10.1002/smll.202303693] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 05/17/2023] [Indexed: 05/27/2023]
Abstract
Electrochemical valorization of polyethylene terephthalate (PET) waste streams into commodity chemicals offers a potentially sustainable route for creating a circular plastic economy. However, PET wastes upcycling into valuable C2 product remains a huge challenge by the lack of an electrocatalyst that can steer the oxidation economically and selectively. Here, it is reported a catalyst comprising Pt nanoparticles hybridized with γ-NiOOH nanosheets supported on Ni foam (Pt/γ-NiOOH/NF) that favors electrochemical transformation of real-word PET hydrolysate into glycolate with high Faradaic efficiency (> 90%) and selectivity (> 90%) across wide reactant (ethylene glycol, EG) concentration ranges under a marginal applied voltage of 0.55 V, which can be paired with cathodic hydrogen production. Computational studies combined with experimental characterizations elucidate that the Pt/γ-NiOOH interface with substantial charge accumulation gives rise to an optimized adsorption energy of EG and a decreased energy barrier of potential determining step. A techno-economic analysis demonstrates that, with the nearly same amount of resource investment, the electroreforming strategy towards glycolate production can raise revenue by up to 2.2 times relative to conventional chemical process. This work may thus serve as a framework for PET wastes valorization process with net-zero carbon footprint and high economic viability.
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Affiliation(s)
- Mengmeng Du
- Jiangsu Key Laboratory of Pesticide Sciences, Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yu Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Sailei Kang
- Jiangsu Key Laboratory of Pesticide Sciences, Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Chao Xu
- Jiangsu Key Laboratory of Pesticide Sciences, Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yingxin Ma
- Jiangsu Key Laboratory of Pesticide Sciences, Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Lejuan Cai
- Songshan Lake Materials Laboratory, Guangdong, 523000, China
| | - Ye Zhu
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, China
| | - Yang Chai
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, China
| | - Bocheng Qiu
- Jiangsu Key Laboratory of Pesticide Sciences, Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, China
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19
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Zhang T, Li X, Wang J, Miao Y, Wang T, Qian X, Zhao Y. Photovoltaic-driven electrocatalytic upcycling poly(ethylene terephthalate) plastic waste coupled with hydrogen generation. JOURNAL OF HAZARDOUS MATERIALS 2023; 450:131054. [PMID: 36841072 DOI: 10.1016/j.jhazmat.2023.131054] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
The electrochemical upconversion of plastic wastes has been demonstrated as an attractive alternative to the sluggish OER process to simultaneously produce valued chemicals and reduce the energy consumption. Herein, we report a photovoltaic-driven electrocatalytic strategy to upcycle poly(ethylene terephthalate) (PET) into value-added formic acid products and co-produce green hydrogen. The waste PET was dissolved by KOH and then directly pumped into an electrochemical flow reactor (EFR) including CuO nanowires (NWs) anode and Pt/C 20% cathode (PV-EFR) and driven by the commercial silicon photovoltaic (PV) panels. This PV-EFR system exhibits a solar-to-chemical (STC) efficiency of 32.6% under AM 1.5 G simulated sunlight (100 mW cm-2), and high Faradaic efficiencies (FE, ∼ 67% for formic acid, and ∼90% for green hydrogen) with exceptional 120 h long-term stability in the STC mode. Such a photovoltaic-driven electrocatalytic strategy exhibits great potential for the rational utilization of renewable energy sources to produce high-value chemicals and fuels by upconversion of waste plastics.
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Affiliation(s)
- Ting Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, PR China
| | - Xin Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, PR China
| | - Jianying Wang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, PR China
| | - Yanfeng Miao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, PR China
| | - Tianfu Wang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, PR China
| | - Xufang Qian
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China.
| | - Yixin Zhao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China.
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20
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Liu F, Gao X, Shi R, Guo Z, Tse ECM, Chen Y. Concerted and Selective Electrooxidation of Polyethylene-Terephthalate-Derived Alcohol to Glycolic Acid at an Industry-Level Current Density over a Pd-Ni(OH) 2 Catalyst. Angew Chem Int Ed Engl 2023; 62:e202300094. [PMID: 36656087 DOI: 10.1002/anie.202300094] [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: 01/03/2023] [Revised: 01/17/2023] [Accepted: 01/19/2023] [Indexed: 01/20/2023]
Abstract
Electro-reforming of Polyethylene-terephthalate-derived (PET-derived) ethylene glycol (EG) into fine chemicals and H2 is an ideal solution to address severe plastic pollution. Here, we report the electrooxidation of EG to glycolic acid (GA) with a high Faraday efficiency and selectivity (>85 %) even at an industry-level current density (600 mA cm-2 at 1.15 V vs. RHE) over a Pd-Ni(OH)2 catalyst. Notably, stable electrolysis over 200 h can be achieved, outperforming all available Pd-based catalysts. Combined experimental and theoretical results reveal that 1) the OH* generation promoted by Ni(OH)2 plays a critical role in facilitating EG-to-GA oxidation and removing poisonous carbonyl species, thereby achieving high activity and stability; 2) Pd with a downshifted d-band center and the oxophilic Ni can synergistically facilitate the rapid desorption and transfer of GA from the active Pd sites to the inactive Ni sites, avoiding over-oxidation and thus achieving high selectivity.
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Affiliation(s)
- Fulai Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Xutao Gao
- CAS-HKU Joint Laboratory on New Materials & Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, P. R. China
| | - Rui Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Zhengxiao Guo
- CAS-HKU Joint Laboratory on New Materials & Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, P. R. China
| | - Edmund C M Tse
- CAS-HKU Joint Laboratory on New Materials & Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, P. R. China
| | - Yong Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100190, P. R. China
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21
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Ali I, Tan X, Li J, Peng C, Wan P, Naz I, Duan Z, Ruan Y. Innovations in the Development of Promising Adsorbents for the Remediation of Microplastics and Nanoplastics - A Critical Review. WATER RESEARCH 2023; 230:119526. [PMID: 36577257 DOI: 10.1016/j.watres.2022.119526] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 12/05/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
Microplastics and nanoplastics are being assumed as emerging toxic pollutants owing to their unique persistent physicochemical attributes, chemical stability, and nonbiodegradable nature. Owing to their possible toxicological impacts (not only on aquatic biota but also on humans), scientific communities are developing innovative technologies to remove microplastics and nanoplastics from polluted waters. Various technologies, including adsorption, coagulation, photocatalysis, bioremediation, and filtration, have been developed and employed to eliminate microplastics and nanoplastics. Recently, adsorption technology has been getting great interest in capturing microplastics and nanoplastics and achieving excellent removal performance. Therefore, this review is designed to discuss recent innovations in developing promising adsorbents for the remediation of microplastics and nanoplastics from wastewater and natural water. The developed adsorbents have been classified into four main classes: sponge/aerogel-based, metal-based, biochar-based, and other developed adsorbents, and their performance efficiencies have been critically examined. Further, the influence of various pertinent factors, including adsorbents' characteristics, microplastics/nanoplastics' characteristics, solution pH, reaction temperature, natural organic matter, and co-existing/interfering ions on the removal performance of advanced adsorbents, have been critically assessed. Importantly, the particle application of the developed adsorbents in removing microplastics and nanoplastics from natural water has been elucidated. In addition, barriers to market penetration of the developed adsorbents are briefly discussed to help experts transfer adsorption-based technology from laboratory-scale to commercial applications. Finally, the current knowledge gaps and future recommendations are highlighted to assist scientific communal for improving adsorption-based technologies to battle against microplastics and nanoplastics pollution.
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Affiliation(s)
- Imran Ali
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Xiao Tan
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
| | - Juying Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Changsheng Peng
- Key Lab of Marine Environmental Science and Ecology, Ministry of Education, College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; School of Environment and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China
| | - Peng Wan
- Shenzhen Water Planning & Design Institute Co., Ltd., Shenzhen 518001, China.; Guangdong Provincial Engineering and Technology Research Center for Water Affairs Big Data and Water Ecology, Shenzhen, 518001, China
| | - Iffat Naz
- Department of Biology, Deanship of Educational Services, Qassim University, Buraidah 51452, Kingdom of Saudi Arabia (KSA)
| | - Zhipeng Duan
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Yinlan Ruan
- Institute for Photonics and Advanced Sensing, The University of Adelaide, SA 5005, Australia
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22
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Behera S, Dinda S, Saha R, Mondal B. Quantitative Electrocatalytic Upcycling of Polyethylene Terephthalate Plastic and Its Oligomer with a Cobalt-Based One-Dimensional Coordination Polymer Having Open Metal Sites along with Coproduction of Hydrogen. ACS Catal 2022. [DOI: 10.1021/acscatal.2c05270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Snehanjali Behera
- Discipline of Chemistry, IIT Gandhinagar, Palaj, Gandhinagar-382355, Gujarat, India
| | - Soumitra Dinda
- Discipline of Chemistry, IIT Gandhinagar, Palaj, Gandhinagar-382355, Gujarat, India
| | - Rajat Saha
- Department of Chemistry, Kazi Nazrul University, Asansol-713340, West Bengal, India
| | - Biswajit Mondal
- Discipline of Chemistry, IIT Gandhinagar, Palaj, Gandhinagar-382355, Gujarat, India
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23
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Chai X, Jiang K, Wang J, Ren Z, Liu X, Chen L, Zhuang X, Wang T. Efficient Catalytic Conversion of 5-Hydroxymethylfurfural to 2,5-Furandicarboxylic Acid over Ruthenium Cluster-Embedded Ni(OH) 2 Catalyst. CHEMSUSCHEM 2022; 15:e202200863. [PMID: 35716074 DOI: 10.1002/cssc.202200863] [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: 05/03/2022] [Revised: 06/14/2022] [Indexed: 06/15/2023]
Abstract
5-Hydroxymethylfurfural (HMF) can be oxidized to 2,5-furandicarboxylic acid (FDCA) for the production of biorenewable plastics to replace fossil resourced polyethylene terephthalate (PET). Development of a highly efficient electrocatalyst using renewable electricity as energy input is highly desired. In this work, Ru cluster-embedded Ni(OH)2 nanosheets [Ru/Ni(OH)2 ] were synthesized and exploited as electrochemical catalysts for the conversion of HMF to FDCA. Ru/Ni(OH)2 exhibited significantly improved current density (40 mA cm-2 at 1.41 V vs. reversible hydrogen electrode) of over 7.7 times in comparison with Ni(OH)2 , and nearly 100 % conversion degree for HMF and 98.5 % selectivity towards FDCA were obtained. Operando Raman experiments revealed the catalysis was facilitated by the interconversion between Ni3+ and Ni2+ . Density functional theory calculations further revealed the effect of Ru clusters of Ni(OH)2 , thereby promoting HMF adsorption capacity on Ni sites to boost HMF oxidation activity. This work provides a novel strategy using Ru clusters to modify earth abundant Ni based catalyst for HMF oxidation to obtain high-value biomass-derived products.
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Affiliation(s)
- Xinyu Chai
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai, 200240, P. R. China
| | - Kaiyue Jiang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai, 200240, P. R. China
| | - Jianying Wang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai, 200240, P. R. China
| | - Zhouhong Ren
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai, 200240, P. R. China
| | - Xi Liu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai, 200240, P. R. China
| | - Liwei Chen
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai, 200240, P. R. China
| | - Xiaodong Zhuang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai, 200240, P. R. China
| | - Tianfu Wang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai, 200240, P. R. China
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24
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Cao R, Zhang MQ, Hu C, Xiao D, Wang M, Ma D. Catalytic oxidation of polystyrene to aromatic oxygenates over a graphitic carbon nitride catalyst. Nat Commun 2022; 13:4809. [PMID: 35974104 PMCID: PMC9381527 DOI: 10.1038/s41467-022-32510-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 08/02/2022] [Indexed: 11/10/2022] Open
Abstract
The continuous increase in manufacturing coupled with the difficulty of recycling of plastic products has generated huge amounts of waste plastics. Most of the existing chemical recycling and upcycling methods suffer from harsh conditions and poor product selectivity. Here we demonstrate a photocatalytic method to oxidize polystyrene to aromatic oxygenates under visible light irradiation using heterogeneous graphitic carbon nitride catalysts. Benzoic acid, acetophenone, and benzaldehyde are the dominant products in the liquid phase when the conversion of polystyrene reaches >90% at 150 °C. For the transformation of 0.5 g polystyrene plastic waste, 0.36 g of the aromatic oxygenates is obtained. The reaction mechanism is also investigated with various characterization methods and procedes via polystyrene activation to form hydroxyl and carbonyl groups over its backbone via C-H bond oxidation which is followed by oxidative bond breakage via C-C activation and further oxidation processes to aromatic oxygenates.
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Affiliation(s)
- Ruochen Cao
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Mei-Qi Zhang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Chaoquan Hu
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China.,Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, 211135, People's Republic of China
| | - Dequan Xiao
- Center for Integrative Materials Discovery, Department of Chemistry and Chemical and Biomedical Engineering, University of New Haven, West Haven, CT, 06516, USA
| | - Meng Wang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China.
| | - Ding Ma
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China.
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25
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Chen Z, Wei W, Liu X, Ni BJ. Emerging electrochemical techniques for identifying and removing micro/nanoplastics in urban waters. WATER RESEARCH 2022; 221:118846. [PMID: 35841793 DOI: 10.1016/j.watres.2022.118846] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 07/07/2022] [Accepted: 07/09/2022] [Indexed: 05/26/2023]
Abstract
The ubiquitous micro/nanoplastics (MPs/NPs) in urban waters are priority pollutants due to their toxic effects on living organisms. Currently, great efforts have been made to realize a plastic-free urban water system, and the identification and removal of MPs/NPs are two primary issues. Among diverse methods, emerging electrochemical techniques have gained growing interests owing to their facile implementation, high efficiency, eco-compatibility, onsite operation, etc. Herein, recent progress in the electrochemical identification and removal of MPs/NPs in urban waters are comprehensively reviewed. The electrochemical sensing of MPs/NPs and their released pollutants (e.g., bisphenol A (BPA)) has been analyzed, and the sensing principles and the featured electrochemical devices/electrodes are examined. Afterwards, recent applications of electrochemical methods (i.e., electrocoagulation, electroadsorption, electrokinetic separation and electrochemical degradation) in MPs/NPs removal are discussed in detail. The influences of critical parameters (e.g., plastics' property, current density and electrolyte) in the electrochemical identification and removal of MPs/NPs are also analyzed. Finally, the current challenges and prospects in electrochemical sensing and removal of MPs/NPs in urban waters are elaborated. This review would advance efficient electrochemical technologies for future MPs/NPs pollutions management in urban waters.
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Affiliation(s)
- Zhijie Chen
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2007, Australia
| | - Wei Wei
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2007, Australia
| | - Xiaoqing Liu
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2007, Australia
| | - Bing-Jie Ni
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2007, Australia.
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26
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Zhou H, Wang Y, Ren Y, Li Z, Kong X, Shao M, Duan H. Plastic Waste Valorization by Leveraging Multidisciplinary Catalytic Technologies. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hua Zhou
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Ye Wang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yue Ren
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhenhua Li
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xianggui Kong
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Mingfei Shao
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Haohong Duan
- Department of Chemistry, Tsinghua University, Beijing 100084, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
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27
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Wang J, Li X, Wang M, Zhang T, Chai X, Lu J, Wang T, Zhao Y, Ma D. Electrocatalytic Valorization of Poly(ethylene terephthalate) Plastic and CO 2 for Simultaneous Production of Formic Acid. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01128] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Jianying Wang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Xin Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Maolin Wang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Ting Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Xinyu Chai
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Junlin Lu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Tianfu Wang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Yixin Zhao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, P. R. China
| | - Ding Ma
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
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