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图 1 常压化学气相沉积系统(a)、废弃烟头(b)和600 ℃热解活化KOH/废弃烟头后生成的黑色固态混合物(c)
Figure 1. Atmosphere-pressure chemical vapor deposition system (a), Photo of waste cigarette filters (b) and Photo of black mixture in nickel boat after pyrolysis of KOH/WCFs at 600 ℃ (c)
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图 2 WCFs (a)，MMOL/LC500 (b)，MMOL/LC600 (c)和MMOL/LC700(d)的扫描电镜图像
Figure 2. SEM images of WCFs (a), MMOL/LC500 (b), MMOL/LC600 (c) and MMOL/LC700 (d)
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图 3 WCF、MMOL/LC500、MMOL/LC600、MMOL/LC700的拉曼光谱
Figure 3. Raman spectra of WCF, MMOL/LC500, MMOL/LC600, and MMOL/LC700
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图 4 MMOL/LC500、MMOL/LC600、MMOL/LC700的XPS (a)；MMOL/LC500、MMOL/LC600、MMOL/LC700的N 1s高分辨率XPS(b)
Figure 4. Low-resolution and high-resolution XPS spectra of MMOL/LC500, MMOL/LC600, and MMOL/LC700
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图 5 MMOL/LC500、MMOL/LC600、MMOL/LC700的氮气吸收脱附等温线(a)；差分孔隙容量与孔径分布关系(b)和积分孔隙容量与孔径分布关系(c)
Figure 5. N2 adsorption-desorption isotherm (a); differential (b) and cumulative pore volume versus pore size (c) of MMOL/LC500, MMOL/LC600, and MMOL/LC700
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图 6 MMOL/LC500 (a)、MMOL/LC600 (b)和MMOL/LC700 (c)电极在不同电压下的离子吸附能力和电流曲线；(d)离子吸附能力、(e)电荷效率、(f)能量消耗随电压的变化
Figure 6. Electrosorption capacity and current of MMOL/LC500 (a); MMOL/LC600 (b); MMOL/LC700 CDI electrodes at different potential voltages (c); electrosorption capacity versus potential voltage (d) and (e) charge efficiency versus potential voltage, (f) energy consumption versus potential voltage
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Sample w/% C O N MMOL/LC500 88.95 10.02 1.03 MMOL/LC600 91.08 8.45 0.47 MMOL/LC700 92.87 6.41 0.72 表 1 废弃烟头衍生多孔碳的元素成分
Table 1. Elemental concentrations of MMOL/LCs
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Materials SBET/(m2·g-1) Smicropore/(m2·g-1) Smesopore/(m2·g-1) Vtotal pore/(cm3·g-1) Vmicropore/(cm3·g-1) Vmesopore/(cm3·g-1) Daverage/nm WCF 1.4 0.5 0.9 0.005 0.000 0.005 14.59 MMOL/LC500 351 265 86 0.25 0.11 0.14 2.88 MMOL/LC600 860 732 128 0.46 0.30 0.16 2.13 MMOL/LC700 928 828 100 0.48 0.34 0.14 2.09 表 2 WCF、MMOL/LC500、MMOL/LC600、MMOL/LC700的比表面积和多孔性
Table 2. Surface area and porosity of WCF, MMOL/LC500, MMOL/LC600 and MMOL/LC700
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6 个 表共
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