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首页> 外文期刊>American journal of applied sciences >Characterization of Activated Carbon from Eggshell Membranes Prepared Using Sodium Acetate and Zinc Metal Activation
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Characterization of Activated Carbon from Eggshell Membranes Prepared Using Sodium Acetate and Zinc Metal Activation

机译：用乙酸钠和锌金属活化法制备的蛋壳膜的活性炭的表征

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摘要

The eggshell membranes of ducks and hens were carbonized or activated with 4 wt% sodium acetate or zinc at 400-600℃. The carbonized or activated products were characterized by SEM-EDS, TEM, FTIR and XRD. It was found that the suitable activation temperature for eggshell membranes is 500℃ with 30.03-35.26% yield. The activation performance of CH_3COONa for eggshell membrane activated carbon production was higher than that of Zn metal. The CO_3~(2-), Ca-O, C=C, Na-O and C-O functional groups have been formed on the surface of eggshell membrane activated carbon materials during both CH_3COONa and Zn activation. Furthermore, CaO, MgO, Na_2O and ZnO have also accumulated on eggshell membrane activated carbon materials with high content and regular dispersion. It was shown that the particles on the duck eggshell membrane activated carbon formed with Zn had weaker attachment on the surface than for duck eggshell membrane activated carbon formed with CH_3COONa at same temperature. The XRD and TEM results revealed that the eggshell membrane activated carbons consist of an amorphous carbon matrix with some disordered graphite carbon matrix, spherical particles and nanofiber.
机译：鸭子和母鸡的蛋壳膜在400-600℃下用4 wt％的乙酸钠或锌碳化或活化。通过SEM-EDS，TEM，FTIR和XRD对碳化或活化的产物进行表征。结果表明，适宜的蛋壳膜活化温度为500℃，产率为30.03-35.26％。 CH_3COONa对蛋壳膜活性炭生产的活化性能高于锌金属。在CH_3COONa和Zn活化过程中，蛋壳膜活性炭材料表面均形成了CO_3〜（2-），Ca-O，C = C，Na-O和C-O官能团。此外，CaO，MgO，Na_2O和ZnO也以高含量且规则分散的形式积累在蛋壳膜活性炭材料上。结果表明，在相同温度下，由Zn形成的鸭蛋壳膜活性炭上的颗粒与在CH_3COONa上形成的鸭蛋壳膜活性炭上的表面结合较弱。 XRD和TEM结果表明，蛋壳膜活性炭由无定形碳基质和无序石墨碳基质，球形颗粒和纳米纤维组成。

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