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丝瓜络基活性炭的制备及其吸附性能

Siyu LI, Dongchang YANG, Haiwang ZHENG,Yandan SONG

Textile Auxiliaries(2020)

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Abstract
以丝瓜络为原料,ZnCl2为活化剂制备了丝瓜络基活性炭(LAC).利用扫描电子显微镜(SEM)、比表面积及孔径测定仪对LAC进行表征,LAC对亚甲基蓝的吸附性能采用分光光度计进行测试.结果 表明:LAC具有高的比表面积和丰富的孔结构(孔洞以微孔为主);随着炭化活化温度的升高,比表面积和孔体积增大,微孔比例下降;当炭化活化温度为900℃时,LAC的比表面积高达2 333 m2/g,孔体积为1.658 cm3/g;LAC对亚甲基蓝具有较快的吸附速率,在5 min内达到吸附平衡,吸附率高达99%以上.
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