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
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