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活性炭微孔中環戊烷的吸附和解吸
文章作者:博猫娱乐注册網絡部 更新時間:2021-1-12 16:30:13

  活性炭微孔中環戊烷的吸附和解吸

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  TU1:YONGGUANGXUEXIANWEIJINGGUANCHAHUOXINGTANKELIDEWAIBUXINGTAI。

  活性炭中環戊烷的吸附和解吸

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  環戊烷吸附/解吸后活性炭的表征

  確定導致環戊烷吸附的孔徑在環戊烷脫附后,在初級真空下24小時內長時間抽空后,用氬氣對活性炭進行表征。可以理解,氬氣在吸附的環戊烷中的溶解度被忽略。環戊烷吸附前后孔容和孔徑分布的差異如圖3所示。可以看到,所有可到達的孔體積都減小了,這證實了部分孔隙仍然充滿了環戊烷。對不同孔徑分布的分析以及樣本之間的比較使得可以得出一些結論。首先,無論活性炭如何,環戊烷吸附/脫附前后的中孔數量(孔徑>2nm)均保持不變,這表明即使在該類型的孔隙中存在活性位,環戊烷也可從中孔脫附。相反,對于每個活性炭,幾乎所有的超微孔和小微孔(孔徑<1.1nm)都會填滿,這表明由于在這種小腔中流體與固體之間的高相互作用,環戊烷仍被困在這些孔中,對于中間微孔(1.1nm<孔徑<2nm),無論活躍孔隙的數量和性質如何。

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  HUANWUWANZAIHUOXINGTANZHONGDEXIFUJIHUBUKENI。YIFANGMIAN,XIFUHEJIEXIDENGWENXIANCELIANGBIAOMING,JISHIZAICHUJIZHENKONGXIACHANGSHIJIANCHOUKONGHOU,SUOYOUHUOXINGTANZHONGRENGBAOLIUZHU29%ZHI48%DEHUANWUWAN。LINGYIFANGMIAN,LIANGRECELIANGYIQUEDINGZAIZUIDIDEHUANWUWANFUZAIXIAHUIFASHENGGAONENGXIFU。HUANWUWANXIFUHEJIEXIQIANHOUDEKONGXILVFAQUEDING,KELICHICUNDUIHUANWUWANXIFUDEYINGXIANGKEYIHULVEBUJI,ERKONGJINGFENBUDEYINGXIANGQUEHENDA。XIAOYU1.1nmDEKONGJINGBEIRENWEISHIZAOCHENGBUKENIHUANWUWANXIFUDEYUANYIN。KONGXIFENBUYUKONGXILVFADEOUHEBIAOMING,YAOCHUQUZHILIUZAICHAOWEIKONGZHONGDEHUANWUWAN,BIXUYOUZHUBIJIAOGAODEWENDU。ZAICUNZAIHUOXINGTANDEQINGKUANGXIASHUIDAOSHUIHEWUDEZHUANHUALVJIAODIKENENGYUHUANWUWANXIFUYOUGUAN。YOUYUGAOHUANWUWANCHUCUNRONGLIANGHEYIYUHUANWUWANSHIFANGDUIYUHUOXINGTANZENGQIANGHUANWUWANSHUIHEWUDEXINGCHENGSHIBIXUDE,YINCIJIANYISHIYONGDADUOSHUKONGDAYU1.1nmDEWEIKONGHUOXINGTAN,YIBAOCHICICHUGEICHUDEJIEGUO。

文章標簽:椰殼活性炭,果殼活性炭,煤質活性炭,木質活性炭,蜂窩活性炭,凈水活性炭.

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