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首页> 外文期刊>Journal of Materials Research >Preparation and photocatalytic application of AgBr modified Bi_2WO_6 nanosheets with high adsorption capacity
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Preparation and photocatalytic application of AgBr modified Bi_2WO_6 nanosheets with high adsorption capacity

机译：高吸附能力的AgBr改性Bi_2WO_6纳米片的制备及其光催化应用。

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摘要

AgBr-modified Bi2WO6 nanosheets were successfully synthesized using a CTAB-assisted hydrothermal method followed by a facile deposition-precipitation procedure. The as-prepared photocatalysts were characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), UV-vis diffuse reflectance spectroscopy (DRS), Brunauer-Emmett-Teller (BET), and photoluminescence emission spectroscopy (PL). AgBr nanoparticles were found evenly distributed on the surface of the Bi2WO6 nanosheets. The AgBr/Bi2WO6 nanocomposite demonstrated enhanced pollutant decolorization efficiency in eliminating Rhodamine B (RhB), methyl orange (MO), and phenol aqueous solutions under simulated solar light irradiation. It has been noticed that the adsorption performance of both Bi2WO6 nanosheets and AgBr-modified Bi2WO6 nanosheets played a more important role in the decolorization of pollutants, such as RhB and MO, than their photocatalytic ability. The high adsorption efficiency of the photocatalysts was mainly attributed to the increased surface area and the exposed reactive facets of the materials.
机译：AgBr改性的Bi2WO6纳米片成功地使用CTAB辅助的水热法，然后进行简便的沉积-沉淀程序合成。使用X射线衍射（XRD），X射线光电子能谱（XPS），透射电子显微镜（TEM），紫外可见漫反射光谱（DRS），Brunauer-Emmett-Teller（BET）对制得的光催化剂进行表征，以及光致发光发射光谱（PL）。发现AgBr纳米颗粒均匀分布在Bi2WO6纳米片的表面上。 AgBr / Bi2WO6纳米复合材料在模拟的日光照射下，能消除罗丹明B（RhB），甲基橙（MO）和苯酚水溶液，从而提高了污染物的脱色效率。已经注意到，Bi 2 WO 6纳米片和AgBr改性的Bi 2 WO 6纳米片的吸附性能在污染物如RhB和MO的脱色中比它们的光催化能力更重要。光催化剂的高吸附效率主要归因于增加的表面积和材料暴露的反应面。

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  • 来源
    《Journal of Materials Research》 |2018年第23期|3953-3962|共10页
  • 作者

    Zhang Peng; Dong Zhiyuan; Ran Yuanming; Xie Hualin; Lu Yun; Ding Shimin;

  • 作者单位

    Chiba Univ, Coll Mech Engn, Chiba 2638522, Japan;

    Yangtze Normal Univ, Collaborat Innovat Ctr Green Dev Wuling Mt Areas, Chongqing 408100, Peoples R China;

    Helmholtz Zentrum Berlin Mat & Energy, Inst Appl Mat, D-14109 Berlin, Germany;

    Chiba Univ, Grad Sch, Chiba 2638522, Japan;

    Yangtze Normal Univ, Coll Mat Sci & Engn, Chongqing 408100, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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