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Lewis Acid-Base Synergistic Catalysis for Polyethylene Terephthalate Degradation by 1,3-Dimethylurea/Zn(OAc)(2) Deep Eutectic Solvent
Liu, Bo1,2; Fu, Wenzhao3; Lu, Xingmei1,2; Zhou, Qing1; Zhang, Suojiang1,2
2019-02-04
Source PublicationACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
Volume7Issue:3Pages:3292-3300
AbstractDeep eutectic solvents (DESs) become more attractive in the catalytic field due to their biodegradation, low toxicity, and designability. This study focused on the active sites and influencing factors of 1,3-dimethylurea (1,3-DMU) based DESs in the polyethylene terephthalate (PET) glycolysis process. It is found that the active site of urea derivatives is the amino group, and the basicity and steric hindrance of the amino group affect its catalytic activity. Additionally, the mechanism of PET glycolysis reaction catalyzed by DES was investigated. The outstanding catalytic activity of DES can be attributed to the synergistic effect of acid and base formed between metal salts and 1,3-DMU. Under the optimization conditions, PET (5.0 g), ethylene glycol (20.0 g), and catalyst (n(1,3-DMU)/n(Zn(OAc)(2)) 4/1, 0.25 g) at 190 degrees C for 20 min, the PET conversion is up to 100%, and the yield of bis(hydroxyalkyl) terephthalate (BHET) is 82%. Furthermore, the kinetic research shows that the glycolysis of PET follows the shrink-core model, and the apparent activity energy is 148.89 kJ/mol.
KeywordPolyethylene terephthalate Glycolysis Deep eutectic solvents Synergistic catalysis Mechanism
DOI10.1021/acssuschemeng.8b05324
Language英语
WOS KeywordIONIC LIQUID ; GLYCOLYSIS ; PET ; WASTE ; TRANSESTERIFICATION ; POLYMERIZATION ; HYDROLYSIS ; CARBONATE ; KINETICS ; MODEL
Funding ProjectNational Basic Research Program of China (973 Program)[2015CB251401] ; National Natural Scientific Fund of China[21878292] ; National Natural Scientific Fund of China[91434203] ; National Natural Scientific Fund of China[21776289] ; K. C. Wong Education Foundation ; Strategic Priority Research Program of Chinese Academy of Science[XDA21060300] ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSW-JSC011]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Engineering
WOS SubjectChemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical
Funding OrganizationNational Basic Research Program of China (973 Program) ; National Natural Scientific Fund of China ; K. C. Wong Education Foundation ; Strategic Priority Research Program of Chinese Academy of Science ; Key Research Program of Frontier Sciences, CAS
WOS IDWOS:000458086100049
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/27934
Collection中国科学院过程工程研究所
Corresponding AuthorLu, Xingmei
Affiliation1.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn, Inst Proc Engn,State Key Lab Multiphase Complex S, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
3.East China Univ Sci & Technol, State Key Lab Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China
Recommended Citation
GB/T 7714
Liu, Bo,Fu, Wenzhao,Lu, Xingmei,et al. Lewis Acid-Base Synergistic Catalysis for Polyethylene Terephthalate Degradation by 1,3-Dimethylurea/Zn(OAc)(2) Deep Eutectic Solvent[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2019,7(3):3292-3300.
APA Liu, Bo,Fu, Wenzhao,Lu, Xingmei,Zhou, Qing,&Zhang, Suojiang.(2019).Lewis Acid-Base Synergistic Catalysis for Polyethylene Terephthalate Degradation by 1,3-Dimethylurea/Zn(OAc)(2) Deep Eutectic Solvent.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,7(3),3292-3300.
MLA Liu, Bo,et al."Lewis Acid-Base Synergistic Catalysis for Polyethylene Terephthalate Degradation by 1,3-Dimethylurea/Zn(OAc)(2) Deep Eutectic Solvent".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7.3(2019):3292-3300.
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