A New Iodocuprate/methyl Viologen-based Hybird: Structure, Properties and Photocatalytic Activity for the Degradation of Organic Dye

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A new copper iodide/organic hybrid incorporated with methyl viologen, [(MV)(Cu2I4)•H2O]n (1, MV = methyl viologen), has been solvothermally synthesized and struc- turally determined by X-ray diffraction method. 1 crystallizes in tetragonal system, space group P42212 with Mr = 838.95, a = 12.4721(18), c = 6.5892(13 Å, V = 1025.0(3) Å3, Z = 2, Dc = 2.7125 g/cm3, F(000) = 756, μ(MoKα) = 8.097 mm–1, the final R = 0.0273 and wR = 0.0665 for 1062 observed reflections with I > 2σ(I). In 1, the (Cu2I4)n2n- chain was constructed from edge-sharing of distorted CuI4 tetrahedra. Its absorption spectrum and photoluminescence were investigated, and energy band gap of 1.76 eV indicates its semiconductor nature. Interestingly, 1 exhibits photocatalytic activity for the degradation of rhodamine B.

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关键词 ： organic-inorganic hybrid, iodocuprates, viologen, photocatalytic degradation

Abstract：A new copper iodide/organic hybrid incorporated with methyl viologen, [(MV)(Cu2I4)•H2O]n (1, MV = methyl viologen), has been solvothermally synthesized and struc- turally determined by X-ray diffraction method. 1 crystallizes in tetragonal system, space group P42212 with Mr = 838.95, a = 12.4721(18), c = 6.5892(13 Å, V = 1025.0(3) Å3, Z = 2, Dc = 2.7125 g/cm3, F(000) = 756, μ(MoKα) = 8.097 mm–1, the final R = 0.0273 and wR = 0.0665 for 1062 observed reflections with I > 2σ(I). In 1, the (Cu2I4)n2n- chain was constructed from edge-sharing of distorted CuI4 tetrahedra. Its absorption spectrum and photoluminescence were investigated, and energy band gap of 1.76 eV indicates its semiconductor nature. Interestingly, 1 exhibits photocatalytic activity for the degradation of rhodamine B.

Key words： organic-inorganic hybrid iodocuprates viologen photocatalytic degradation

收稿日期: 2016-10-18 出版日期: 2017-06-12

通讯作者: gnnulxk@163.com E-mail: gnnulxk@163.com

引用本文:

李小康蒋阳琴. A New Iodocuprate/methyl Viologen-based Hybird: Structure, Properties and Photocatalytic Activity for the Degradation of Organic Dye[J]. 结构化学, 2017, 36(6): 1020-1026.
LI Xiao-Kang;JIANG Yang-Qin. A New Iodocuprate/methyl Viologen-based Hybird: Structure, Properties and Photocatalytic Activity for the Degradation of Organic Dye. CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2017, 36(6): 1020-1026.

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http://manu30.magtech.com.cn/jghx/CN/ 或 http://manu30.magtech.com.cn/jghx/CN/Y2017/V36/I6/1020

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