【摘要】 采用溶液共混法合成银掺杂的碳纳米管溶胶,将溶胶涂敷在钛板表面,成功制备了银掺杂的碳纳米管电极(Ag-CNTs/Ti),通过扫描电镜(SEM)、X射线衍射(XRD)和能量色散X射线(EDX)对其进行表征,并应用循环伏安法研究其电化学性质.以银掺杂碳纳米管电极为阳极,石墨电极为阴极,葡萄糖溶液为阳极区基质,构建微生物燃料电池.实验表明:当温度为40℃,外阻为2 300Ω,AgNO3掺杂量为0.4g,葡萄糖质量浓度为1.257g·L-1时,微生物燃料电池的最大输出电压为811mV,表观内阻为296Ω,化学耗氧量(COD)降解率为84%.更多还原

【Abstract】 Ag-doped carbon nanotube sol is synthesized by solution co-blending method and applied onto titanium plate for the preparation of Ag-CNTs/Ti.The composite electrode is characterized by scanning electron microscopy(SEM),X-ray diffraction(XRD)and energy dispersion X-ray(EDX),and its electrochemical properties are studied by cyclic voltammeter(CV).Two-chambered microbial fuel cell(MFC)is constructed with composite electrode as anode,flexible graphite as cathode and glucose solution as substrate in anode chamber.At 40 ℃,external resistance with2 300Ω,composite electrode with doping AgNO3 of 0.4g and glucose(substrate)solution with concentration of 1.257g·L-1,MFC possesses the maximum output voltage with 811 mV,apparent resistance with 296Ω,removal rate with 84%for COD.更多还原