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[求助]
【吸附】關于杯芳烴類物質(zhì)對堿金屬陽離子和重鉻酸根陰離子吸附的問題
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各位蟲友,發(fā)文章遇到一個問題,杯芳烴類物質(zhì)對重鉻酸根有良好的吸附作用,對Na+,K+等堿金屬陽離子也有非常好的吸附作用。那么在對重鉻酸鈉或者重鉻酸鉀等物質(zhì)的溶液中,杯芳烴類物質(zhì)對堿金屬陽離子和重鉻酸根均能進行吸附,對二者的兩個吸附過程有沒有必然的聯(lián)系?比如,吸附堿金屬陽離子對重鉻酸根吸附有幫助?或者溶液中由于失去了陽離子,陰離子會有更大幾率被杯芳烴所吸附? 附件論文中有這樣一段話: it is well known that the calixarenes with amide functionalities are effective sorbents for sodium cation. Therefore to comprehend the sorption abilities of C[4]BCP toward sodium cation, it was performed sodium sorption studies under similar conditions. The results show that C[4]BCP is excellent sorbent for sodium cation. Thus, the sorption of dichromate anions simultaneously occurred with sodium cation by C[4]BCP. This result indicated that C[4]BCP was a ditopic sorbent. 請大神幫忙講解一下,這個同時發(fā)生的兩種吸附,有沒有聯(lián)系? |
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