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首页> 外文期刊>RSC Advances >Inserting AgCl@rGO into graphene hydrogel 3D structure: synergy of adsorption and photocatalysis for efficient removal of bisphenol A
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Inserting AgCl@rGO into graphene hydrogel 3D structure: synergy of adsorption and photocatalysis for efficient removal of bisphenol A

机译：将AgCl @ Rgo插入石墨烯水凝胶3D结构：吸附和光催化的协同作用，以有效去除双酚A.

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摘要

An AgCl@graphene (rGO) core-shell structure was fabricated and then loaded into reduced graphene oxide hydrogel (rGH) to form AgCl@rGO-rGH by the chemical reduction method. The AgCl@rGO core-shell structure inhibited the aggregation of the AgCl particles and promoted the rapid transfer and separation of photogenerated electron-hole pairs. Moreover, the AgCl@rGO-rGH composite exhibited a high adsorption and photocatalytic degradation capacity for bisphenol A (BPA). Specifically, the degradation efficiency of BPA on AgCl@rGO-rGH-2 reached 93.7% under the synergy of adsorption and photocatalytic degradation, and the degradation efficiency of BPA reached 87.0% after five cycles of degradation, which demonstrated the great synergistic effect between graphene and AgCl. The degradation capabilities of AgCl@rGO-rGH were 6.4 and 2.8 times of pure AgCl and rGH on the synergistic degradation of BPA. In the continuous flow system, the degradation ratio of AgCl@rGO-rGH2 remained 100% within the first 4 h under the synergy conditions. When the reaction time reached 9 h, the synergistic degradation ratio of BPA remained about 75.2%. It showed that AgCl@rGO-rGH-2 still has good degradation activity and long life in the mobile phase system.
机译：制备AGCL @石墨烯（RGO）核 - 壳结构，然后通过化学还原方法加载到还原的石墨烯氧化物水凝胶（RGH）中以形成AgCl @ rgo-Rgh。 AgCl @ Rgo核 - 壳结构抑制了AgCl颗粒的聚集并促进了光生电子孔对的快速转移和分离。此外，AgCl @ Rgo-RGH复合材料表现出对双酚A（BPA）的高吸附和光催化降解能力。具体而言，在吸附和光催化降解的协同作用下，BPA对AgCl @ rgo-RGH-2的降解效率达到93.7％，并且在降解五个循环后BPA的降解效率达到87.0％，这表明了石墨烯之间的协同效应良好和AGCL。 AgCl @ rgo-RGH的降解能力为6.4和2.8倍的纯AGCl和BPA协同降解的RGH。在连续流动系统中，在协同条件下，AgCl @ rgo-RGH2的降解比率在前4小时内保持100％。当反应时间达到9小时时，BPA的协同降解比约约75.2％。它表明，AGCL @ Rgo-RGH-2仍然具有良好的降解活动和移动期系统中的寿命。

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  • 来源
    《RSC Advances》 |2017年第63期|共10页
  • 作者

    Chen Fangyuan; Zhao Junxiu; An Weijia; Hu Jinshan; Liang Yinghua; Cui Wenquan;

  • 作者单位

    North China Univ Sci &

    Technol Hebei Key Lab Environm Photocatalyt &

    Electrocata Coll Chem Engn Tangshan 063210 Peoples R China;

    North China Univ Sci &

    Technol Hebei Key Lab Environm Photocatalyt &

    Electrocata Coll Chem Engn Tangshan 063210 Peoples R China;

    North China Univ Sci &

    Technol Hebei Key Lab Environm Photocatalyt &

    Electrocata Coll Chem Engn Tangshan 063210 Peoples R China;

    North China Univ Sci &

    Technol Hebei Key Lab Environm Photocatalyt &

    Electrocata Coll Chem Engn Tangshan 063210 Peoples R China;

    North China Univ Sci &

    Technol Hebei Key Lab Environm Photocatalyt &

    Electrocata Coll Chem Engn Tangshan 063210 Peoples R China;

    North China Univ Sci &

    Technol Hebei Key Lab Environm Photocatalyt &

    Electrocata Coll Chem Engn Tangshan 063210 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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