Sribala MG, Meenarathi B, Parthasarathy V, Anbarasan R. Efficient catalytic activity of novel fluorescent polyimide embedded Ag and V
2O
5 nanoparticles towards the removal of hazardous pollutants.
JOURNAL OF HAZARDOUS MATERIALS 2021;
414:125606. [PMID:
34030428 DOI:
10.1016/j.jhazmat.2021.125606]
[Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/15/2021] [Accepted: 03/04/2021] [Indexed: 06/12/2023]
Abstract
A novel fluorescent polyimide (PI) made up of perylenetetracarboxylic dianhydride (PTCDAH) and p-phenylenediamine (PPDA) was prepared with or without Ag and V2O5 nanoparticles at 160 °C for 5 h under N2 atmosphere with vigorous stirring. The influence of nanomaterials on the rate of polymerization (Rp) was determined. The synthesized PI and PI nanocomposites were characterized to analyse their chemical functionality (FT-IR), surface morphology (FE-SEM) and thermal properties (DSC and TGA). The catalytic reduction of Cr (VI), p-nitrophenol (NP) and rhodamine6G (R6G) dye was analysed using the prepared PI and PI nanocomposites as a catalyst. It was found that the Rp of PI nanocomposites was higher than pristine PI system. The PI/Ag nanocomposite system exhibited higher degradation temperature (Td) and apparent rate constant (kapp) values towards the reduction of R6G dye.
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