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Ion-Exchange Resins for Efficient Removal of Colorants in Bis(hydroxyethyl) Terephthalate
Huang, Rong1,2; Zhang, Qi1,2; Yao, Haoyu1,2; Lu, Xingmei1,2,3,4; Zhou, Qing1,2,4; Yan, Dongxia1
2021-05-11
Source PublicationACS OMEGA
ISSN2470-1343
Volume6Issue:18Pages:12351-12360
AbstractBis(hydroxyethyl) terephthalate (BHET) obtained from waste poly(ethylene terephthalate) (PET) glycolysis often have undesirable colors, leading to an increased cost in the decoloration of the product and limiting the industrialization of chemical recycling. In this work, eight types of ion-exchange resins were used for BHET decoloration, and resin D201 showed an outstanding performance not only in the decoloration efficiency but also in the retention rate of the product. Under the optimal conditions, the removal rate of the colorant and the retention efficiency of BHET were over 99% and 95%, respectively. D201 showed outstanding reusability with five successive cycles, and the decolored BHET and its r-PET showed good chromaticity. Furthermore, the investigations of adsorption isotherms, kinetics, and thermodynamics have been conducted, which indicated that the decoloration process was a natural endothermic reaction. Adsorption interactions between the colorant and resin were extensively examined by various characterizations, revealing that electrostatic force, pi-pi interactions, and hydrogen bonding were the dominant adsorption mechanisms.
DOI10.1021/acsomega.1c01477
Language英语
WOS KeywordADSORPTION ; PET ; DYES ; PURIFICATION ; DECOLORATION ; DEGRADATION ; ORANGE ; WASTE
Funding ProjectNational Key Research and Development Program of China[2019YFC1908204] ; National Natural Scientific Fund of China[21776289] ; National Natural Scientific Fund of China[21978291] ; National Natural Scientific Fund of China[21878292] ; National Natural Scientific Fund of China[21908232] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM2020C21] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM2020C12] ; K. C. Wong Education Foundation[GJTD-2018-04]
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Funding OrganizationNational Key Research and Development Program of China ; National Natural Scientific Fund of China ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; K. C. Wong Education Foundation
WOS IDWOS:000651520800056
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/48996
Collection中国科学院过程工程研究所
Corresponding AuthorLu, Xingmei; Zhou, Qing
Affiliation1.Chinese Acad Sci, Inst Proc Engn,State Key Lab Multiphase Complex S, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem & Engn, Beijing 100049, Peoples R China
3.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Huang, Rong,Zhang, Qi,Yao, Haoyu,et al. Ion-Exchange Resins for Efficient Removal of Colorants in Bis(hydroxyethyl) Terephthalate[J]. ACS OMEGA,2021,6(18):12351-12360.
APA Huang, Rong,Zhang, Qi,Yao, Haoyu,Lu, Xingmei,Zhou, Qing,&Yan, Dongxia.(2021).Ion-Exchange Resins for Efficient Removal of Colorants in Bis(hydroxyethyl) Terephthalate.ACS OMEGA,6(18),12351-12360.
MLA Huang, Rong,et al."Ion-Exchange Resins for Efficient Removal of Colorants in Bis(hydroxyethyl) Terephthalate".ACS OMEGA 6.18(2021):12351-12360.
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