화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2014년 가을 (10/22 ~ 10/24, 대전 DCC)
권호 20권 2호, p.1969
발표분야 재료
제목 Facile biogenic-chemical route for the synthesis of thermally stable and visible light active Ag@TiO2/polyaniline nanocomposite
초록 Ag@TiO2/Pani nanocomposite was prepared by the in-situ oxidative polymerization of aniline in the presence of Ag@TiO2 nanocomposite, which was rather obtained via a biogenic route. The synthesized Ag@TiO2/Pani nanocomposite was confirmed various characterization techniques. The Ag@TiO2/Pani nanocomposite was doped with HCl/p-toluene sulfonic acid to render it conducting. An analysis of the thermoelectrical behavior using a cyclic aging technique showed that the electrical conductivity and thermal stability got improved after the incorporation of Ag@TiO2 inside the Ag@TiO2/Pani nanocomposite system. Photocatalytic studies of the Ag@TiO2/Pani nanocomposite revealed superior photodegradation properties in comparison to Pani towards the degradation of methylene blue and brilliant blue under visible light. Electrochemical impedance spectroscopy and linear sweep voltammetry under dark and visible light irradiation also supported the visible light photocatalytic activity of Ag@TiO2/Pani due to a decrease in the electron transfer resistance resulting in an increase in photocurrent.
저자 Mohd Omaish Ansari, Mohammad Mansoob Khan, Sajid Ali Ansari, 조무환
소속 Yeungnam Univ.
키워드 Ag@TiO2/polyaniline nanocomposite; visible light active; biogenic-chemical route
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