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Preparation and Photocatalytic Property of Co-Doped Hydroxyl-Zr Pillared Titanate |
HE Liwen1,2, SUN Dongya1,2, LIAN Jiqiong2, LIN Bizhou1,**( ) |
1. College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, China 2. College of Materials Science & Engineering, Xiamen University of Technology, Xiamen 361024, China |
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Cite this article:
HE Liwen, SUN Dongya, LIAN Jiqiong, LIN Bizhou. Preparation and Photocatalytic Property of Co-Doped Hydroxyl-Zr Pillared Titanate. Chinese Journal of Materials Research, 2016, 30(4): 285-291.
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Abstract Mesoporous nanocomposite of Co-doped hydroxyl-Zr -pillared titanate (CZPT) was prepared via an exfoliation-restacking route, and the pre-exfoliated layered titanate was reassembled in an aqueous solution containing hydroxyl-Zr oligocations and Co ions. The influence of the doping Co cations on the preparation and catalytic activity of Zr-pillared titanate (abbreviated as ZPT) composites was investigated. The prepared CZPT was characterized by powder X-ray diffraction, scanning electron microscope, transmission electron microscopy, UV-Vis spectra and porosity measurements. XRD and N2 absorption results suggested that the ZPT doped with 5% Co (mass fraction) had bigger pore diameter and specific area. The presence of 5% Co could effectively suppress the annihilation of the photogenerated hole-electron pairs, and correspondingly the absorption wavelength exhibits obviously red-shift. The degradation of rhodamine B (RhB) under ultraviolet and visible radiation shows that the as-prepared nanocomposite exhibits higher photocatalytic activities than that of layered titanate alone. The enhanced photocatalytic activity of the as-prepared nanocomposite CZPT-5 for the degradation of RhB under visible irradiation may be attributed to the coupling interaction between cations of the host and the Co containing guest.
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Received: 24 September 2015
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Fund: Supported by National Natural Science Foundation of China No.50872037 and Education Scientific Project of Young Teacher of Fujian Province No.JB14077 |
About author: To whom correspondence should be addressed, Tel: 15959448863, E-mail: 2013123205@xmut.edu.cn |
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