Valorization of PES textile waste through glycolysis and aminolysis using bimetallic ZnO and carbon nitride nanocomposites

Author:

Anbarasu Murugan1,Vinitha Viswanathan1,Preeyangha Mani2,Neppolian Bernaurdshaw2,Sivamurugan Vajiravelu1

Affiliation:

1. Pachaiyappa’s College

2. SRM Institute of Science and Technology

Abstract

Abstract Polyester (PES) textile fabrics are chemically recycled through aminolysis, and glycolysis catalyzed by nanocomposites composed of Sb (or) In-doped ZnO and g-C3N4 nanocomposites prepared by the wet-impregnation method. The nanocomposites were characterized by XRD, UV‒Vis, FT-IR, and SEM-EDS techniques. X-ray diffraction patterns as well as SEM EDS showed the presence of amorphous g-C3N4 and doped ZnO. The extent of the optical band gaps of ZnO observed in doping with g-C3N4. The optical band gap of 3.31 eV of ZnO was reduced to 2.55 to 2.65 eV after doping with g-C3N4. SEM morphological analysis showed a sheet-like structure along with ZnO nanoparticles adsorbed on the surface of g-C3N4. Glycolysis and aminolysis of colored PES waste produced BHET and BHETA, respectively, as pure monomers in excellent yield (>90%). FT-IR, MS, 1H, and 13C NMR were used to confirm the formation of BHET and BHETA.

Publisher

Research Square Platform LLC

Reference56 articles.

1. Recent advances in biocatalysts engineering for polyethylene terephthalate plastic waste green recycling;Samak NA;Environment International,2020

2. Production, use, and fate of all plastics ever made;Geyer R;Science Advances,2017

3. Mandal, S., Dey, A., 2019. 1 - PET Chemistry, in: Thomas, S., Rane, A., Kanny, K., V.k., A., Thomas, M.G. (Eds.), Recycling of Polyethylene Terephthalate Bottles, Plastics Design Library. William Andrew Publishing, pp. 1–22. https://doi.org/10.1016/B978-0-12-811361-5.00001-8.

4. Improving the circular economy via hydrothermal processing of high-density waste plastics;Helmer Pedersen T;Waste Management,2017

5. Sheel A, Pant D. (2019). 4 - Chemical Depolymerization of PET Bottles via Glycolysis, in: Thomas, S., Rane, A., Kanny, K., V.k., A., Thomas, M.G. (Eds.), Recycling of Polyethylene Terephthalate Bottles, Plastics Design Library. William Andrew Publishing, pp. 61–84. https://doi.org/10.1016/B978-0-12- 811361-5.00004-3.

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3