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3D Foam Strutted Graphene Carbon Nitride with Highly Stable Optoelectronic Properties

机译：具有高度稳定的光电特性的3D泡沫支撑的石墨烯氮化碳

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摘要

Controlled morphology modulation of graphene carbon nitride (g-C3N4) is successfully realized from bulk to 3D loose foam architecture via the blowing effect of a bubble, which can be controlled by heating rate. The loose foam network is comprised by spatially scaffolded few-atom-layer interconnected flakes with the large specific surface area, as supporters to prevent agglomeration and provide a pathway for electron/phonon transports. The photocatalytic performance of 3D foam strutted g-C3N4 toward RhB decomposition and hydrogen evolution is significantly enhanced with the morphology optimization while its excellent optoelectronic properties are maintained simultaneously. Herein, the ultrathin, mono-, and high-quality foam g-C3N4 interconnected flakes with controlled layer are facilely obtained through ultrasonic, thus overcoming the drawbacks of a traditional top-down approach, opening a wide horizon for diverse practical usages. Additionally, the layer control mechanism of 3D hierarchical structure has been explored by means of bubble growth kinetics analysis and the density functional theory calculations.
机译：石墨烯碳氮化物（g-C3N4）的受控形态调制是通过气泡的吹制效果成功实现的，从体到3D松散泡沫结构，可以通过加热速率进行控制。疏松的泡沫网络由具有大比表面积的空间支架式几个原子层互连薄片组成，可作为防止聚结并为电子/声子传输提供途径的载体。通过形态优化，可显着增强3D泡沫支撑的g-C3N4泡沫​​对RhB分解和析氢的光催化性能，同时保持其优异的光电性能。在此，通过超声波容易地获得具有可控层的超薄，单质和高质量的g-C3N4泡沫​​互连薄片，从而克服了传统的自顶向下方法的缺点，为多种实际用途打开了广阔的视野。另外，通过气泡生长动力学分析和密度泛函理论计算，探索了3D分层结构的层控制机制。

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  • 来源
    《Advanced Functional Materials》 |2017年第42期|1703711.1-1703711.12|共12页
  • 作者

    Guo Qianyi; Zhang Yuanhao; Zhang Hai-Shan; Liu Yingjun; Zhao Yu-Jun; Qiu Jianrong; Dong Guoping;

  • 作者单位

    South China Univ Technol, State Key Lab Luminescent Mat & Devices, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China;

    South China Univ Technol, State Key Lab Luminescent Mat & Devices, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China;

    South China Univ Technol, Dept Phys, Guangzhou 510640, Guangdong, Peoples R China;

    South China Univ Technol, State Key Lab Luminescent Mat & Devices, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China;

    South China Univ Technol, Dept Phys, Guangzhou 510640, Guangdong, Peoples R China;

    Zhejiang Univ, Coll Opt Sci & Engn, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Zhejiang, Peoples R China;

    South China Univ Technol, State Key Lab Luminescent Mat & Devices, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    foam structures; g-C3N4; optoelectronics; photoluminescence;

    机译：泡沫结构;g-C3N4;光电;光致发光;

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