Chromium(Ⅵ) removal in a solar-driven photocatalytic fuel cell with carbon quantum dots modified p-type zinc-based metal−organic framework photocathode
Chromium(Ⅵ) removal in a solar-driven photocatalytic fuel cell with carbon quantum dots modified p-type zinc-based metal−organic framework photocathode
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碳量子点修饰p型锌基金属有机框架光电阴极在太阳能驱动光催化燃料电池中去除铬(Ⅷ)
DOI：
10.1016/j.ijhydene.2023.01.352
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发表时间：
2023-02
影响因子：
7.2
通讯作者：
Qi Wang
中科院分区：
文献类型：
--
作者：
Meng Tan;Hao Du;Yangjie Fu;Xin Ma;Ningyi Li;Derek Hao;Qi Wang
高效光电极在光催化燃料电池（PFC）系统中具有重要作用。本研究采用碳量子点修饰的锌基金属有机骨架（N-Zn-MOF/CQDs）和BiVO 4分别作为PFC体系的光电阴极和光电阳极，对Cr（Ⅵ）进行还原。利用各种分析技术来表征所制备的样品的物理化学，光学和光电化学性质。随着CQD的加入，可见光响应和电荷分离速率显着增强。在PFC系统中，电路电流密度为58.04 mA cm-2，最大功率密度为1.35 mW cm-2，这是上级其他报道的PFC系统。在最佳条件下，可见光照射120 min，Cr（Ⅵ）的去除率可达100%。该工作为锌基金属有机骨架阴极的修饰提供了一种新的方法，可以显著提高其光催化性能。
High-efficiency photoelectrode played a significant role in photocatalytic fuel cell (PFC) systems. In this study, a zinc-based metal-organic framework modified by carbon quantum dots (N-Zn-MOF/CQDs) and the BiVO4were respectively presented as the photocathode and photoanode of the PFC system toward Cr(Ⅵ) reduction. Various analytical techniques were utilized to characterize the physicochemical, optical and photoelectrochemical properties of the as-prepared samples. With the addition of CQDs, the visible-light response and charge separation rate were remarkably enhanced. In the PFC system, the circuit current density of 58.04 mA cm−2and max power density of 1.35 mW cm−2were achieved, which was superior to other reported PFC systems. Under optimized conditions, 100% Cr(Ⅵ) can be removed within 120 min of visible-light illumination. This work provided a new method to decorate the zinc-based metal−organic framework cathode to dramatically improve the photocatalytic performance.
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影响因子：
22.1
作者：
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DOI：
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期刊：
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影响因子：
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影响因子：
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