{"title":"One-pot synthesis of titanium isophthalate and highly active catalytic glycolysis of waste PET","authors":"Ruiyang Wen, Guoliang Shen, Yang Yu, Shijie Xu","doi":"10.1039/d4nj03300k","DOIUrl":null,"url":null,"abstract":"The glycolysis of PET represents a pivotal approach to achieving high-value utilization following its disposal. However, an efficient and cost-effective catalyst is required. This paper reports on the use of a titanium isophthalate (Ti-IPA) catalyst for PET depolymerization. Ti-IPA was prepared using isophthalic acid and titanate as raw materials via a one-pot method. The study investigated the effects of different titanium sources and solvent types on Ti-IPA. The optimal conditions for the glycolysis reaction were determined using response surface methodology, the 0.86% Ti-IPA catalyst provided a BHET yield of 84.86 % for a reaction lasting 3.15 h at 194 ℃ with 12.8 ml ethylene glycol. Finally, a comparative analysis of the catalytic performance of Ti-IPA revealed that it is a promising novel catalyst with significant commercial potential.","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"New Journal of Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1039/d4nj03300k","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The glycolysis of PET represents a pivotal approach to achieving high-value utilization following its disposal. However, an efficient and cost-effective catalyst is required. This paper reports on the use of a titanium isophthalate (Ti-IPA) catalyst for PET depolymerization. Ti-IPA was prepared using isophthalic acid and titanate as raw materials via a one-pot method. The study investigated the effects of different titanium sources and solvent types on Ti-IPA. The optimal conditions for the glycolysis reaction were determined using response surface methodology, the 0.86% Ti-IPA catalyst provided a BHET yield of 84.86 % for a reaction lasting 3.15 h at 194 ℃ with 12.8 ml ethylene glycol. Finally, a comparative analysis of the catalytic performance of Ti-IPA revealed that it is a promising novel catalyst with significant commercial potential.
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