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 | |
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. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论