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首页> 外文期刊>Journal of Hazardous Materials >Synthesis of hollow lantern-like Eu(Ⅲ)-doped g-C_3N_4 with enhanced visible light photocatalytic perfomance for organic degradation
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Synthesis of hollow lantern-like Eu(Ⅲ)-doped g-C_3N_4 with enhanced visible light photocatalytic perfomance for organic degradation

机译：可见光增强催化作用的空心灯笼状掺Eu（Ⅲ）的g-C_3N_4的合成

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摘要

A series of hollow structure lantern-like Eu(III)-doped g-C3N4 (xEu-CN, x = 1, 2, 3) was firstly synthesized by heating a mixture of melamine, HNO3 and Eu2O3 at 500 degrees C for 2 h. The phase, morphology and optical properties of the serial xEu-CN samples were characterized by different techniques, including TEM, XRD, FT-IR, SEM, XPS, BET, UV-vis, PL, photocurrent, and EIS. The results indicated that Eu doping extraordinarily enhanced the photocatalytic activity of pure g-C3N4, and the 2Eu-CN exhibited the highest photocatalytic performance with a 98% (82%) degradation rate for RhB (TC), 6.03 (1.71)-fold of pure g-C3N4(CN). The higher photocatalytic efficiency is ascribed to the synergy effect of Eu(III) and the hollow structures, which led to a larger surface specific area, bandgap narrowing, enhanced light harvesting ability and efficient charge separation.
机译：首先将三聚氰胺，HNO3和Eu2O3的混合物在500摄氏度加热2小时，合成了一系列空心结构的灯笼状掺Eu（III）的g-C3N4（xEu-CN，x = 1，2，3）。 。通过不同的技术，包括TEM，XRD，FT-IR，SEM，XPS，BET，UV-vis，PL，光电流和EIS，对xEu-CN系列样品的相，形态和光学性质进行了表征。结果表明，Eu掺杂极大地提高了纯g-C3N4的光催化活性，而2Eu-CN表现出最高的光催化性能，对RhB（TC）的降解率为98％（82％），是RhB（TC）的6.03（1.71）倍。纯的g-C3N4（CN）。较高的光催化效率归因于Eu（III）与中空结构的协同效应，从而导致更大的比表面积，带隙变窄，增强的光收集能力和有效的电荷分离。

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  • 来源
    《Journal of Hazardous Materials》 |2018年第may5期|224-233|共10页
  • 作者

    Wang Min; Guo Pengyao; Zhang Yu; Lv Chunmei; Liu Tingyu; Chai Tianyu; Xie Yuanhua; Wang Youzhao; Zhu Tong;

  • 作者单位

    Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110011, Liaoning, Peoples R China;

    Northeastern Univ, Sch Resources & Civil Engn, Shenyang 110011, Liaoning, Peoples R China;

    Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110011, Liaoning, Peoples R China;

    Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110011, Liaoning, Peoples R China;

    Shenyang Second Senior High Sch, Shenyang 110014, Liaoning, Peoples R China;

    Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110011, Liaoning, Peoples R China;

    Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110011, Liaoning, Peoples R China;

    Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110011, Liaoning, Peoples R China;

    Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110011, Liaoning, 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);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    g-C3N4; Eu doping; Hollow structure; Rhodamine B (RhB); Tetracycline(TC);

    机译：g-C3N4;Eu掺杂;空心结构;若丹明B（RhB）;四环素（TC）;

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