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Photoelectrocatalytic degradation of partially hydrolyzed polyacrylamide using a novel particle electrode

机译：用新型粒子电极进行部分水解聚丙烯酰胺的光电催化降解

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摘要

Tetrapyrazinoporphyrazines and their metal derivatives (TPyzPzs) are the most widely studied class of phthalocyanines azaanalogues. The present study describes a two-step synthesis for the cobalt complex of tetra-2,3-(5,6-di-tert-butyl-pyrazino) porphyrazine (tBu-TPyzPzCo) starting from pivalil, 2,3-diaminomaleonitrile, metal salts, and urea. The product was ultrasonically impregnated onto carbon black (CB), wherein particle electrodes (tBu-TpyzPzCo/CB) were employed for the degradation of partially hydrolyzed polyacrylamide (HPAM) in a three-dimensional electrocatalytic system under xenon lamp. HPAM exhibited more efficient degradation in the presence of a supporting catalyst using the photoelectrocatalytic process than by photocatalytic or electrocatalytic oxidation or even the sum of the two in saline water. The effects of HPAM degradation on various parameters in the photoelectrocatalytic reactor, such as the catalyst dosage, following the application of a cell voltage and an electrolyte were investigated in detail. Hydroxyl radicals and superoxide radicals were determined as the main active species in the reaction. The reaction mechanism was also discussed.
机译：四razyazinoporyrazines及其金属衍生物（Tpyzpzs）是学习最广泛研究的酞菁Azaanalogues。本研究描述了从群岛，2,3-二氨基脲，金属，金属的Tetra-2,3-（5,6-二叔丁基-Pyrazino）卟啉（TBU-TPYZPZCO）的钴络合物的两步合成。盐和尿素。将产物超声浸渍到炭黑（CB）上，其中颗粒电极（TBU-TPYZPZCO / Cb）用于在氙灯下的三维电催化系统中劣化部分水解的聚丙烯酰胺（HPAM）。 HPAM在使用光电催化过程的支撑催化剂存在下表现出更有效的降解，而不是通过光催化或电催化氧化或甚至盐水中的两种总和。详细研究了在施加电池电压和电解质之后，研究了HPAM劣化对光电催化反应器中各种参数的影响，例如催化剂剂量。将羟基自由基和超氧化物自由基确定为反应中的主要活性物质。还讨论了反应机制。

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  • 来源
    《RSC Advances》 |2017年第87期|共8页
  • 作者

    Wang Dejun; Li Hui; Wu Guangrui; Guo Rui; Li Lin; Zhao Chaocheng; Liu Fang; Wang Yongqiang;

  • 作者单位

    China Univ Petr East China Coll Chem Engn 66 Changjiang West Rd Qingdao Peoples R China;

    Qingdao Tech Coll 369 Qiantangjiang Rd Qingdao Peoples R China;

    China Univ Petr East China Coll Chem Engn 66 Changjiang West Rd Qingdao Peoples R China;

    China Univ Petr East China Coll Chem Engn 66 Changjiang West Rd Qingdao Peoples R China;

    Shandong Univ Sci &

    Technol Coll Chem &

    Environm Engn 579 Qianwangang Rd Qingdao Peoples R China;

    China Univ Petr East China Coll Chem Engn 66 Changjiang West Rd Qingdao Peoples R China;

    China Univ Petr East China Coll Chem Engn 66 Changjiang West Rd Qingdao Peoples R China;

    China Univ Petr East China Coll Chem Engn 66 Changjiang West Rd Qingdao Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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