Electrosynthesis and absorbance spectra of TiO2 nanoparticles dispersed in the conductive polymer

• Published in: Applied surface science Vol. 283; pp. 1060 - 1064
• Main Authors: Ehsani, Ali, Babaei, Ferydon, Nasrollahzadeh, Mahmoud
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01-10-2013; Elsevier
• Subjects: Absorbance; Agglomeration; Aminophenol; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Conductive polymer; Cross-disciplinary physics: materials science; rheology; Electrosynthesis; Exact sciences and technology; Irradiation; Maxwell–Garnett theory; Nanocomposite; Nanocrystals; Nanoparticles; Nanostructure; Physics; Spectra; TiO2; Titanium dioxide; Conductive polymer; Electrosynthesis; Nanocomposite; Maxwell–Garnett theory; TiO2; Inorganic compounds; Transition element compounds; Maxwell―Garnett theory; Nanoparticles; Composite materials; Nanocomposites; TiO; Titanium oxide; Polymers; Nanostructured materials
• ISSN: 0169-4332; 1873-5584
• DOI: 10.1016/j.apsusc.2013.07.067

•Maxwell–Garnett theory (MGT) has been applied for absorbance spectra.•Comparable study between experimental and theoretical study.•The surfactant molecules have a stabilizing effect on the composite formation.
Poly ortho aminophenol (POAP)/nanocrystalline TiO2 composite were electrodeposited from through cyclic voltammetry scans to afford conductive polymer/TiO2 nanocomposite. Polymerization of ortho aminophenol (OAP) proceeded after ultrasonic irradiation of nanocrystalline TiO2. The aggregation of nano TiO2 can be reduced under ultrasonic irradiation, and the nanoparticles can be redispersed in the aqueous solution. The presence of nanocrystalline TiO2 strengthens the UV absorption of POAP and leads to a blue shift of the π-polaron absorption of POAP. Experimental absorbance spectra of TiO2/conductive polymer nanocomposite compared with results that obtained from the Maxwell–Garnett theory (MGT).