Depolymerization of Poly(ethylene terephthalate) Wastes through Glycolysis using Lewis Acidic Bentonite Catalysts
作者: Gopal Jeya Murugan Anbarasu Ravikumar Dhanalakshmi Viswanathan VinithaVajiravelu Sivamurugan
刊名: Asian Journal of Chemistry, 2019, Vol.32 (1)
来源数据库: Asian Journal of Chemistry
DOI: 10.14233/ajchem.2020.22387
关键词: BentoniteCatalysisDepolymerizationGlycolysisPoly(ethylene terephthalate)Solid waste management.
原始语种摘要: In the present investigation, the authors explored the depolymerization of waste poly(ethylene terephthalate) (PET) beverage bottles using glycolysis (transesterification) catalyzed by Al3+, Fe3+ and Zn2+ impregnated bentonite catalysts. Heterogeneous catalysts such as clay, zeolite, alumina etc. preferred over homogeneous catalysts, thus we focused on the development of solid acid catalysts based on economically viable clay catalysts. The desired Lewis acidic nature was introduced by wet impregnation method at variable metal ion to clay ratio such as 0.5, 1.0, 2.0, 3.0, 4.0 and 5.0 wt. %. The effect of metal-ion loading on the surface area, pore volume and crystalline nature of the bentonite has been evaluated by nitrogen adsorption and desorption studies and XRD. The PET wastes...
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  • ethylene 乙烯
  • preferred 可取
  • bentonite 斑脱岩
  • glycolysis 糖解
  • observed 观察到的
  • viable 有生活力的
  • loading 加负载
  • metal 金属
  • yield 成品率
  • terephthalate 对酞酸盐