Synthesis and characterization of aurivillius phase Bi5Ti3FeO15 layered perovskite for visible light photocatalysis

Jum Suk JANG; Sang Su YOON; Pramod H. BORSE; Kwon Taek LIM; Tae Eun HONG; Euh Duck JEONG; Ok-Sang JUNG; Yoon Bo SHIM; Hyun Gyu KIM

doi:10.2109/jcersj2.117.1268

Papers

Synthesis and characterization of aurivillius phase Bi₅Ti₃FeO₁₅ layered perovskite for visible light photocatalysis

Jum Suk JANG, Sang Su YOON, Pramod H. BORSE, Kwon Taek LIM, Tae Eun HONG, Euh Duck JEONG, Ok-Sang JUNG, Yoon Bo SHIM, Hyun Gyu KIM

Author information

Jum Suk JANG
Department of Mechanical Engineering, University of Colorado
Sang Su YOON
Department of Chemistry (BK21), Pusan National University
Pramod H. BORSE
Center for Nanomaterials, International Advanced Research Center for Powder Metallurgy and New Materials (ARC International)
Kwon Taek LIM
Department of Imaging System Engineering, Pukyong National University
Tae Eun HONG
Busan Center, Korea Basic Science Institute
Euh Duck JEONG
Busan Center, Korea Basic Science Institute
Ok-Sang JUNG
Department of Chemistry (BK21), Pusan National University
Yoon Bo SHIM
Department of Chemistry (BK21), Pusan National University
Hyun Gyu KIM
Busan Center, Korea Basic Science Institute

Keywords: Bi₅Ti₃FeO₁₅, Aurivillius phase, SSR reaction, Visible light, Photocurrent, Photocatalytic activity

JOURNAL FREE ACCESS

2009 Volume 117 Issue 1371 Pages 1268-1272

DOI https://doi.org/10.2109/jcersj2.117.1268

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Abstract

An aurivillius phase Layered perovskite Bi₅FeTi₃O₁₅ system was synthesized for first time by the solid-state reaction method yielding a single phase Bi₅FeTi₃O₁₅ at only 1030°C. The electronic band structure and optical properties as well as the crystallization behavior of the materials were studied by using UV-DRS and XRD. The as-prepared particles those were the agglomerates of 25 nm crystals, exhibited the band gap of 2.38 eV (525 nm). Their visible light (λ ≥ 420 nm) photocatalytic activity as studied by the photo-decomposition of isopropyl alcohol (IPA) was found to be much higher than that of well-known TiO_2-xN_x photocatalyst.

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