Facile preparation of gold nanoparticles on the polyquinoline matrix: Catalytic performance toward 4-nitrophenol reduction


BİLİCİ A., Ayten B., KAYA İ.

SYNTHETIC METALS, vol.201, pp.11-17, 2015 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 201
  • Publication Date: 2015
  • Doi Number: 10.1016/j.synthmet.2015.01.009
  • Journal Name: SYNTHETIC METALS
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.11-17
  • Keywords: Hybrid, Nanocomposite, Oxidative polymerization, Thermal decomposition, Nitrophenol removal, ONE-STEP SYNTHESIS, NANOCOMPOSITES, NANOSPHERES, FABRICATION

Abstract

Gold nanoparticles (AuNPs) have been introduced into polyquinoline (PAQ) matrix for the first time. For this purpose, 5-amino quinoline (AQ) and auric acid solution were used as a monomer and oxidant, respectively. Incorporation of gold nanoparticles into the PAQ matrix led to improved thermal stability: 5% of product was decomposed at 643 degrees C. Photoluminescence characteristics of resulting composite (Au@PAQ) were determined. Au@PAQ was also successfully utilized for the catalytic reduction of 4-nitro phenol (4NP) to 4-amino phenol (4AP). The reduction process was completed in only four minutes at 25 degrees C. Pseudo-first-order rate constant was estimated to be 3.05 x 10(-3)s(-1). The results were compared with the previous reported ones. (C) 2015 Elsevier B.V. All rights reserved.