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首页> 外文期刊>Applied Surface Science >Fabrication mechanism and photocatalytic activity for a novel graphene oxide hybrid functionalized with tetrakis-(4-hydroxylphenyl) porphyrin and 1-pyrenesulfonic acid
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Fabrication mechanism and photocatalytic activity for a novel graphene oxide hybrid functionalized with tetrakis-(4-hydroxylphenyl) porphyrin and 1-pyrenesulfonic acid

机译：四（4-羟基苯基）卟啉与1-苯磺酸官能化的新型氧化石墨烯杂化体的制备机理和光催化活性

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摘要

A new type of nanohybrid (GO/THPP/PSA) was noncovalently constructed by anchoring 5, 10, 15, 20-tetrakis-(4-hydroxylphenyl) porphyrin (THPP) and 1-pyrenesulfonic acid hydrate (PSA) in graphene oxide (GO). The assembly mechanism of the nanohybrid was explored in detail. The results showed that THPP and PSA were attached in the GO by pi-pi stacking interaction and hydrogen bond. Compared with pure GO, GO/THPP or GO/PSA, the GO/THPP/PSA nanohybrid showed better photocatalytic activity for hydrogen evolution. The mechanism of electron transfer in the GO/THPP/PSA nanohybrid was investigated. It was shown that light absorption and separation of electron/hole pairs were improved dramatically due to wider light response and multi-channel electrons transfer in the hybrid. The results could initiate new ideas for constructing other graphene-based functionalized materials with high photocatalytic activity. (C) 2017 Elsevier B.V. All rights reserved.
机译：通过将5、10、15、20-四-（4-羟苯基）卟啉（THPP）和1-苯磺酸磺酸水合物（PSA）锚定在氧化石墨烯（GO）中以非共价方式构建了新型纳米杂化物（GO / THPP / PSA） ）。详细探讨了纳米杂化体的组装机理。结果表明，THPP和PSA通过pi-pi堆积相互作用和氢键连接在GO中。与纯GO，GO / THPP或GO / PSA相比，GO / THPP / PSA纳米杂化物表现出更好的光催化活性。研究了GO / THPP / PSA纳米杂化物中电子转移的机理。结果表明，由于杂化中更宽的光响应和多通道电子转移，电子/空穴对的光吸收和分离得到了显着改善。该结果可能为构建其他具有高光催化活性的基于石墨烯的功能化材料提出新的思路。 （C）2017 Elsevier B.V.保留所有权利。

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  • 来源
    《Applied Surface Science》 |2018年第ptab期|15-23|共9页
  • 作者

    Luo Qiang; Ge Riyue; Kang Shi-Zhao; Qin Lixia; Li Guodong; Li Xiangqing;

  • 作者单位

    Shanghai Inst Technol, Ctr Graphene Res, Sch Chem & Environm Engn, 100 Haiquan Rd, Shanghai 201418, Peoples R China;

    Shanghai Inst Technol, Ctr Graphene Res, Sch Chem & Environm Engn, 100 Haiquan Rd, Shanghai 201418, Peoples R China;

    Shanghai Inst Technol, Ctr Graphene Res, Sch Chem & Environm Engn, 100 Haiquan Rd, Shanghai 201418, Peoples R China;

    Shanghai Inst Technol, Ctr Graphene Res, Sch Chem & Environm Engn, 100 Haiquan Rd, Shanghai 201418, Peoples R China;

    Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Jilin, Peoples R China;

    Shanghai Inst Technol, Ctr Graphene Res, Sch Chem & Environm Engn, 100 Haiquan Rd, Shanghai 201418, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Graphene oxide; Functionalization; Assembly mode; Mechanism; Photocatalysis;

    机译：氧化石墨烯;功能化;组装方式;机理;光催化;

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