Synthesis and characterization of novel magnetically separable CoFe<inf>2</inf>O<inf>4</inf>/CeO<inf>2</inf>nanocomposite photocatalysts

• Main Authors: Natda Wetchakun, Saranyoo Chaiwichain, Khatcharin Wetchakun, Wiyong Kangwansupamonkon, Burapat Inceesungvorn, Sukon Phanichphant
• Format: Journal
• Published: 2018
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84885366301&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/47574
• Institution: Chiang Mai University

The novel CoFe 2 O 4 /CeO 2 nanocomposite materials were successfully synthesized by coupling a homogeneous precipita tion method with hydrothermal method. The mole ratios of CoFe 2 O 4 :CeO 2 in this study were varied as follows: 0.2:0.8, 0.4:0.6, 0.5:0.5, 0.6:0.4 and 0.8:0.2. The obtained CoFe 2 O 4 /CeO 2 nanocomposites were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and Brunauer, Emmett and Teller (BET) techniques. The magnetic properties of CoFe 2 O 4 and CoFe 2 O 4 /CeO 2 samples were determined by using a vibrating sample magnetometer (VSM) at room temperature. The characteristic results of CoFe 2 O 4 /CeO 2 nanocomposite samples indicated that they had a cubic structure. All CoFe 2 O 4 /CeO 2 composite particles existed as spherical-like shape and showed high specific surface area in the range of 98-180 m 2 g -1 . The saturation magnetization (M s ) of 0.4CoFe 2 O 4 :0.6CeO 2 nanocomposite was 25.375 emu g -1 . The CoFe 2 O 4 /CeO 2 nanocomposite was expected to use as a magnetic photocatalyst for degrading some organic compounds. © 2013 Elsevier B.V.