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CHUANZHEN:020-39972520
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DIZHI:GUANGZHOUSHIFANYUQU NANCUNZHENXINGYEDADAOZIBIANGONGYEYUANMQU1HAO
為了探索活性炭化學表面改性引起的效應,研究人員已經在各種實際應用中開發了改性活性炭(表1)。本期介紹活性炭的一些應用領域。
BIAO1:HUOXINGTANDEJIZHONGGAIXINGFANGFA。
原材料 |
活化方法 |
改性后的變化 |
活性炭 |
KOH活化 |
增加表面積導致高比電容 |
活性炭 |
用2%重量的六胺進行氮摻雜 |
增加了超級電容器應用的電極電容 |
活性炭 |
硝酸氧化 |
在氧化后增強了能量密度 |
活性炭 |
用木質材料和H 3 PO 4制備活性炭,并用NH 3改性 |
加入氮基團增強了的吸附速度和容量 |
活性炭 |
通過酸和堿處理產生高極性碳表面 |
對相對極性的甲基叔丁基醚和相對非極性的三氯乙烯吸附 |
活性炭 |
用HNO 3和HCl 酸處理 |
酸處理產生更多活性的酸性表面基團,例如羧基和內酯,導致堿性染料的吸附減少 |
活性炭 |
使用HNO 3,H 2 O 2,NH 3進行化學處理 |
由于活性炭的化學改性,具有優異的染料吸附性能 |
活性炭作為超級電容器
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活性炭作為二氧化碳吸附劑
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活性炭作為有機污染物吸附劑
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活性炭作為染料吸附劑
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