Triboelectric Nanogenerator Powered Electrochemical Degradation of Organic Pollutant Using Pt-Free Carbon Materials
Triboelectric Nanogenerator Powered Electrochemical Degradation of Organic Pollutant Using Pt-Free Carbon Materials
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使用无 Pt 碳材料的摩擦纳米发电机驱动有机污染物电化学降解
DOI：
10.1021/acsnano.7b00422
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发表时间：
2017-04-01
期刊：
影响因子：
17.1
通讯作者：
Wang, Zhong Lin
中科院分区：
文献类型：
--
作者：
Gao, Shuyan;Chen, Ye;Wang, Zhong Lin
以豆腐为原料制备碳电极材料，利用多层连接摩擦电纳米发电机（ML-TENG）自驱动，取代昂贵的铂基电极，降解甲基红（MR）。采用海绵作为缓冲层和预充电注入，ML-TENG的峰值开路电压、V-oc短路电流、I-sc和最大功率密度可分别达到并保持稳定在1300 V、1.2 mA和7.4 W m（-2）（负载电阻= 500 Ω）。使用由这种更新的TENG产生的电力，高毒性和致癌性MR可以通过由在所获得的碳基电极界面处产生的活性氯诱导的氧化过程间接降解为CO2。基于循环伏安法、气相色谱-质谱联用仪和质谱联用仪，提出了这种电化学降解机理。凭借TENG和碳材料的引人注目的特性，例如可持续能源，高且稳定的输出性能，节省成本和高降解效率，这项工作开创了TENG与碳基材料的婚姻，用于环境保护的自供电电化学降解有机污染物。
Carbon electrode materials are fabricated from bean curd to replace costly Pt-based electrodes to degrade methyl red (MR) as self driven by a multilayer linkage triboelectric nanogenerator (ML-TENG). With the sponge as the buffer layer and precharge injection, the peak open-circuit voltage, V-oc short-circuit current, I-sc, and maximum power density of the ML-TENG can reach and remain stable at 1300 V, 1.2 mA, and 7.4 W m(-2) (load resistance = 500 Omega), respectively. Using the electric power generated by such an updated TENG, highly toxic and carcinogenic MR can be indirectly degraded to CO2 through an oxidation process induced by active chlorine produced at the as obtained carbon-based electrode interface. Such an electrochemical degradation mechanism is proposed based on the cyclic voltammogram, gas chromatograph-mass spectrometer, and mass spectrometer. With compelling features of the TENG and carbon materials, such as sustainable energy, high and stable output performance, cost savings, and high degradation efficiency, this work pioneers the marriage of the TENG with carbon-based materials to self-power electrochemical degradation of organic pollutants for environmental protection.