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花状硫化铜级次纳米结构的制备及可见光催化活性研究

赵娟 胡慧芳 曾亚萍 程彩萍

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花状硫化铜级次纳米结构的制备及可见光催化活性研究

赵娟, 胡慧芳, 曾亚萍, 程彩萍

Preparation of flower-like CuS hierarchical nanostructures and its visible light photocatalytic performance

Zhao Juan, Hu Hui-Fang, Zeng Ya-Ping, Cheng Cai-Ping
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  • 本实验以氯化铜 (CuCl2·2H2O) 和二硫化碳(CS2)为原料, 以乙二醇(C2H6O2) 为溶剂, 通过溶剂热法成功制备了具有可见光活性的花状硫化铜(CuS) 级次纳米结构. 并利用X射线粉末衍射技术(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM) 等技术对其进行了表征, 利用紫外可见吸收光谱(Uv-vis)分析了其光学性能, 并以甲基橙为目标降解物对其可见光催化活性进行了研究. 结果表明: 花状CuS级次纳米结构具有很高的可见光催化活性, 与体相CuS粉末相比有很大的提高, 在自然光照射下对甲基橙的降解率可以达到100%. 同时本文对花状级次纳米结构的形成机理进行了分析.
    Flower-like copper monosulfide (CuS) hierarchical nanostructures composed of nanoplates were successfully synthesized by means of a simple solvothermal process, using CuCl2·2H2O as Cu-precursor, CS2 as S-source and ethylene glycol (C2H6O2) as the solvent. The morphology and structure of the product were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The optical properties of the copper monosulfide hierarchical nanostructures were investigated by UV-visible absorption spectra. In addition, the photocatalytic activity of the flower-like CuS hierarchical nanostructures were evaluated by the degradation of methyl orange solution under natural light. Results demonstrate that the as-prepared flower-like CuS hierarchical nanostructures possess high photocatalytic performance, the degradation rate is up to 100% after 90 min degradation under the irradiation of natural light, which is much higher than bulk CuS powder. The formation mechanism of flower-like CuS hierarchical nanostructures was preliminarily analysed, alss.
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    Fujishima A, Honda A 1972 Nature 238 37

    [2]

    Schmidt C M, Buchbinder A M, Weitz E, Geiger F M 2007 J. Phys. Chem. A 111 13023

    [3]

    Li D D, Wang L L 2012 Acta Phys. Sin. 61 034212 (in Chinese) [李冬冬, 王丽莉 2012 物理学 61 034212]

    [4]

    Zhao Z Y, Liu Q J, Zhu Z Q, Zhang J 2008 Acta Phys. Sin. 57 3760 (in Chinese) [赵宗彦, 柳清菊, 朱忠其, 张瑾 2008 物理学报 57 3760]

    [5]

    Zhang F, Wong S S 2009 Chem. Mater. 21 4541

    [6]

    Muruganandham M, Kusumoto Y 2009 J. Phys. Chem. C 113 16144

    [7]

    Gorai S, Ganguli D, Chaudhuri S 2005 Cryst. Growth Des. 5 875

    [8]

    Yuan K D, Wu J J, Liu M L, Chen L D, Huang F Q 2008 Appl. Phys. Lett. 93 132106

    [9]

    Li F, Bi W T, Kong T, Qin Q H 2009 Cryst. Res. Technol. 44 729

    [10]

    Chung J S, Sohll L J 2002 J. Power Sources 108 226

    [11]

    Sakamoto T, Sunamura H, Kawaura H, Hasegawa H, Nakayama T, Aono M 2003 Appl. Phys. Lett. 82 3032

    [12]

    Lee H, Yoon S W, Kim E J, Park J 2007 Nano Lett. 7 778

    [13]

    Roy P, Srivastava S K 2007 Mater. Lett. 61 1693

    [14]

    Mao G, Dong W, Kurth D G 2004 Nano Lett. 4 249

    [15]

    Liao X H, Chena N Y, Xub S, Yanga S B, Zhu J J 2003 Cryst. Growth Des. 252 593

    [16]

    Roy P, Srivastava S K 2006 Cryst. Growth Des. 6 1921

    [17]

    Jiang X C, Xie Y, Lu J, He W, Zhu L Y, Qian Y T 2000 J. Mater. Chem. 10 2193

    [18]

    Yangnd Y J, Xiang J W 2005 Appl. Phys. A 7 1351

    [19]

    Lu Q Y, Gao F, Zhao D Y 2002 Nano Lett. 2 725

    [20]

    Gonçalves A P, Lopes E B, Casaca A, Dias M, Almeida M 2008 J Cryst. Growth 310 2742

    [21]

    Ewers T D, Sra A K, Norris B C, Cable R C, Cheng C H, Shantz D F, Schaak R E 2005 Chem. Mater. 17 514

    [22]

    Jiang D, Hu W, Wang H, Shen B, Deng Y 2012 J. Mater. Sci. 47 4972

    [23]

    Shen X P, Zhao H, Shu H Q, Zhou H, Yuan A H 2009 J. Phys. Chem. Solids 70 422

    [24]

    Gao P X, Ding Y, Mai W, Hughes W L, Lao C S, Wang Z L 2005 Science 309 1700

    [25]

    Haram S K, Mahadeshwar A R, Dixit S G 1996 J. Phys. Chem. 100 5868

    [26]

    Chen L Y, Zhang Z D, Wang W Z 2008 J. Phys. Chem. C 112 4117

    [27]

    Yu X L, Cao C B 2007 Adv. Funct. Mater. 17 1397

    [28]

    Basu M, Sinha A K, Pradhan M, Sarkar S, Negishi Y, Govind Pal T 2010 Environ. Sci. Technol. 44 6313

    [29]

    Li F, Wu J F, Qin Q H, Li Z, Huang X T 2009 Powder Technol. 198 267

    [30]

    Hoffman M R, Marttin S T, Choi W, Bahnemann D W 1995 Chem. Rev. 95 69

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出版历程
  • 收稿日期:  2013-03-03
  • 修回日期:  2013-03-27
  • 刊出日期:  2013-08-05

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