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首页> 外文期刊>Advanced energy materials >Photocatalytic H_2O_2 and H_2 Generation from Living Chlorella vulgaris and Carbon Micro Particle Comodified g-C_3N_4
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Photocatalytic H_2O_2 and H_2 Generation from Living Chlorella vulgaris and Carbon Micro Particle Comodified g-C_3N_4

机译：普通小球藻和碳微粒共改性g-C_3N_4的光催化H_2O_2和H_2生成

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摘要

Hydrogen production from water splitting using photocatalysts and solar energy is an ideal pathway to obtain future energy sources which are cheap and easy to industrialize. In the water splitting process, the reduction of H2O gives H-2, while H2O oxidation produces O-2 with hydrogen peroxide (H2O2) in tiny amounts as a by-product (poisoning the catalyst). It remains challenging to simultaneously produce H2O2 and H-2 within one photocatalytic system. Inspired by a biological H2O2 generator, chlorella, the authors firstly realize the simultaneous photocatalytic water splitting and biological H2O2 generation by a living Chlorella vulgaris and carbon micro particle (needle coke) comodified g-C3N4 (C-N-g-C3N4) photocatalyst. The C-N-g-C3N4 exhibits the optimal H2O2 (H-2) evolution rate of 0.98 mu mol h(-1) (0.84 mu mol h(-1)), giving an apparent quantum efficiency of 0.86% for H-2 evolution at 420 nm. In this system, the needle coke serves as cocatalyst to work as reduction sites for H-2 evolution, while the living C. vulgaris plays the key role in the production of H2O2 under the protection of g-C3N4.
机译：使用光催化剂和太阳能将水分解产生的氢气是获取未来廉价且易于工业化能源的理想途径。在水分解过程中，H2O的还原生成H-2，而H2O氧化则产生的副产物过氧化氢（H2O2）会生成少量O-2（使催化剂中毒）。在一个光催化系统中同时生产H2O2和H-2仍然具有挑战性。在生物过氧化氢发生器小球藻的启发下，作者首先通过普通小球藻和碳微粒（针状焦）共改性的g-C3N4（C-N-g-C3N4）光催化剂实现了光催化水分解和生物H2O2的同时产生。 CNg-C3N4的最佳H2O2（H-2）演化速率为0.98μmol h（-1）（0.84μmol h（-1）），420的H-2演化的表观量子效率为0.86％纳米在该系统中，针状焦炭充当助催化剂，充当H-2进化的还原位，而活的寻常小球藻在g-C3N4的保护下在H2O2的生产中起关键作用。

著录项

  • 来源
    《Advanced energy materials》 |2018年第34期|180252.1-180252.9|共9页
  • 作者

    Fu Yijun; Liu Changan; Zhang Mengling; Zhu Cheng; Li Hao; Wang Huibo; Song Yuxiang; Huang Hui; Liu Yang; Kang Zhenhui;

  • 作者单位

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China;

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China;

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China;

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China;

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China;

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China;

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China;

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China;

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China;

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    biological; coupling; hydrogen; hydrogen peroxide; living;

    机译：生物;耦合;氢;过氧化氢;生活;

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