Lewis Acid-Base Synergistic Catalysis for Polyethylene Terephthalate Degradation by 1,3-Dimethylurea/Zn(OAc)(2) Deep Eutectic Solvent

doi:10.1021/acssuschemeng.8b05324

	Lewis Acid-Base Synergistic Catalysis for Polyethylene Terephthalate Degradation by 1,3-Dimethylurea/Zn(OAc)(2) Deep Eutectic Solvent
	Liu, Bo 1,2; Fu, Wenzhao 3; Lu, Xingmei 1,2; Zhou, Qing 1; Zhang, Suojiang 1,2
刊名	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
	2019-02-04
卷号	7 期号:3 页码:3292-3300
关键词	Polyethylene terephthalate Glycolysis Deep eutectic solvents Synergistic catalysis Mechanism
ISSN号	2168-0485
DOI	10.1021/acssuschemeng.8b05324
英文摘要	Deep 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.
资助项目	National 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关键词	IONIC LIQUID ; GLYCOLYSIS ; PET ; WASTE ; TRANSESTERIFICATION ; POLYMERIZATION ; HYDROLYSIS ; CARBONATE ; KINETICS ; MODEL
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000458086100049
资助机构	National 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
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/27933]
专题	中国科学院过程工程研究所
通讯作者	Lu, Xingmei
作者单位	1.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
推荐引用方式 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.