降级(电信)
多孔性
光催化
阴极
铀
还原(数学)
立方氧化锆
碳纤维
化学工程
材料科学
燃料电池
废物管理
化学
复合材料
冶金
陶瓷
催化作用
有机化学
电气工程
工程类
几何学
数学
物理化学
复合数
作者
Qingsong Zhang,Qimou Deng,Yaoyao Zhang,Yang Xiao,Chunlei Zhang,Haiyi Gong,Qingming Zeng,Qingyan Zhang,Qingyi Zeng
标识
DOI:10.1016/j.apcatb.2024.123808
摘要
Unavoidable organics in uranium wastewater or contaminated waters derive great challenges to traditional uranium removal techniques. Here, a drivingpower enhanced photocatalytic fuel cell (DEPFC) is designed by using a carbon felt (CF)-based UiO-66-NH2 derived zirconia (ZrO2)/N-doped porous carbon (ZrON-C/CF) cathode and a monolithic photoanode, composing of a front FTO glass-based BiVO4 film and a rearmounted Si photovoltaic cell, for effectively oxidizing organics and simultaneously reducing UO22+ from complex wastewater under sunlight illumination. The water contact angle measurements demonstrate that ZrO2 can improve the hydrophilia of cathode thus increases the contact between UO22+ and cathode. The density functional theory indicates that N-doping can enhance the electronegativity of cathode and increases UO22+ adsorption. Meanwhile, the enhanced UO22+ reduction facilitates the charge separation in BiVO4 film, therefore enhancing the organic oxidation. Consequently, under AM 1.5 illumination, the designed DEPFC can remove almost 100% of UO22+ and simultaneous degrade 99% organics within 40 min
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