Efficient wastewater treatment and simultaneously electricity production using a photocatalytic fuel cell based on the radical chain reactions initiated by dual photoelectrodes
Efficient wastewater treatment and simultaneously electricity production using a photocatalytic fuel cell based on the radical chain reactions initiated by dual photoelectrodes
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基于双光电极引发的自由基链式反应，使用光催化燃料电池进行高效废水处理并同时发电
DOI：
10.1016/j.jhazmat.2017.05.004
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发表时间：
2017
影响因子：
13.6
通讯作者：
Zhou Baoxue
中科院分区：
文献类型：
--
作者：
Zhao Kai;Bai Jing;Zeng Qingyi;Zhang Yan;Li Jinhua;Li Linsen;Xia Ligang;Zhou Baoxue
将自由基链式反应策略应用于太阳能响应型光催化燃料电池（PFC）系统中，实现了废水高效转化为清洁能源。该体系由两个光电极构成，在光电极中加入亚铁离子，使有机污染物的自由基降解反应从电极表面进入连续的自由基链式反应，并在整个溶液体系中进行。结果表明，在PFC系统中获得的短路电流（Jsc）和功率密度（JVmax）分别是不含亚铁离子PFC的1.41-1.60倍和1.52-2.02倍。同时，对难降解有机物（甲基橙子、亚甲基蓝、刚果红和四环素）的降解率分别由53.61%、45.38%、51.09%和30.65%提高到91.98%、98.57%、92.36%和68.09%。提出的PFC与自由基链反应策略提供了一个更经济和有效的方式，能源回收和废水处理，并意味着一个更高效的PFC系统时，应用其他电极的可能性。
Efficient conversion of wastewater into clean energy was achieved by applying a radical chain reaction strategy in a solar responsive photocatalytic fuel cell (PFC) system. The system was constructed with two photoelectrodes where ferrous ions were added to enhance the radical reactions for organic pollutants degradation from the surface of electrodes to the whole solution system via coming into a continuous radical chain reaction. The results indicated that the short-circuit current (Jsc) and the power density (JVmax) obtained in the PFC system is up to 1.41–1.60 and 1.52–2.02 times larger than those of the PFC without ferrous ions. Meanwhile, the degradation rate of refractory organics (methyl orange, methylene blue, congo red and tetracycline) increased to 91.98%, 98.57%, 92.36% and 68.09% from 53.61%, 45.38%, 51.09% and 30.65% respectively after 90 min operation. The proposed PFC with a radical chain reaction strategy provides a more economical and efficient way for energy recovery and wastewater treatment and implies a possibility of developing much higher efficient PFC system when applying the other electrodes.