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首页> 外文期刊>Journal of materials science >Evaluation of polymeric g-C_3N_4 contained nonhierarchical ZnV_2O_6 composite for energy-efficient LED assisted photocatalytic mineralization of organic pollutant
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Evaluation of polymeric g-C_3N_4 contained nonhierarchical ZnV_2O_6 composite for energy-efficient LED assisted photocatalytic mineralization of organic pollutant

机译：聚合物G-C_3N_4的含有无功型LED辅助光催化矿化有机污染物的聚合物G-C_3N_4含有非主体ZnV_2O_6复合材料的评价

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摘要

The present work demonstrates the unique construction of polymeric graphitic carbon nitride (g-C_3N_4) contained nonhierarchical zinc-vanadium oxide (ZnV_2O_6) composite for light-emitting diode (LED) aided photocatalytic degradation of an organic pollutant, tetracycline hydrochloride (TC). The g-C_3N_4 was prepared by pyrolysis of urea whereas ZnV_2O_6 and 1:1 (ZnV_2O_6/g-C_3N_4) composite were prepared by hydrothermal process. The as-synthesized catalysts were subjected to scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), dynamic light scattering (DLS) analysis, X-ray diffraction analysis, Fourier-transform infrared (FTIR) analysis, UV-Visible spectroscopy, and photoluminescence (PL) to unravel the physical, chemical, and photo-intrinsic characteristics. The 1:1 (ZnV_2O_6/g-C_3N_4) composite exhibited the maximum TC degradation (87.2%) over the individual components. The systematic investigations revealed that 20 mg of 1:1 (ZnV_2O_6/g-C_3N_4) catalyst was optimum to degrade 20 mg/L of TC with 9 W of LED irradiation up to 125 min. The 1:1 composite retained its catalytic efficiency for three consecutive runs that mark its on-site application. The as-proposed system for TC degradation is exclusive for the fabrication of electronically compatible composite that results in delayed recombination of photo-charges and promotes rapid electron migration within the composite, thereby accelerating the photodegradation.
机译：本作本作者证明了用于发光二极管（LED）辅助光催化降解有机污染物，四环素盐酸盐（TC）的光发射二极管（LED）辅助光催化降解（G-C_3N_4）的独特结构。通过尿素的热解制备G-C_3N_4，而通过水热法制备ZnV_2O_6和1：1（ZnV_2O_6 / G-C_3N_3N_4）复合材料。对其进行扫描电子显微镜（SEM），能量分散X射线光谱（EDS），动态光散射（DLS）分析，X射线衍射分析，傅立叶变换红外（FTIR）分析，UV - 可视化光谱，光致发光（PL），以解开物理，化学品和光固定特性。 1：1（ZnV_2O_6 / G-C_3N_4）复合材料在各个组分上显示出最大TC降解（87.2％）。系统的研究表明，20mg 1：1（ZnV_2O_6 / G-C_3N_4）催化剂最佳，以使20mg / L具有9W的LED辐射，可达125分钟。 1：1复合材料保留其催化效率，连续三次延续，标记其现场申请。用于TC降解的AS提出的系统是用于制造电子相容性复合材料的，导致光电的延迟复合并促进复合材料内的快速电子迁移，从而加速光降解。

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  • 来源
    《Journal of materials science》 |2020年第19期|16806-16818|共13页
  • 作者

    Yashas Shivamurthy Ravindra; Shivaraju Harikaranahalli Puttaiah; Sneha Yadav; Jijoe Samuel Prabagar;

  • 作者单位

    Department of Water and Health Faculty of Natural Sciences JSS Academy of Higher Education and Research Mysore 570015. India;

    Department of Water and Health Faculty of Natural Sciences JSS Academy of Higher Education and Research Mysore 570015. India Center for Water Food and Energy. GREENS Trust Harikaranahalli. Dombaranahalli Post. Turuvekere Taluka. Tumkur District 572215 India;

    Department of Water and Health Faculty of Natural Sciences JSS Academy of Higher Education and Research Mysore 570015. India;

    Department of Water and Health Faculty of Natural Sciences JSS Academy of Higher Education and Research Mysore 570015. India;

  • 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);
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