1,8-萘二胺與苯胺共聚複合膜吸收銅離子與導電率關係

Relation between electric conductivity and the concentration of copper ions absorbed by Poly(aniline/1,8-diaminonaphthalene) composite films

賴正耀(Cheng-Yao Lai)

指導教授 ： 段葉芳

國立臺北科技大學/工程學院/化學工程研究所/碩士(2007年)

https://doi.org/10.6841/NTUT.2007.00053

摘要

本論文主要研究將苯胺和1,8-萘二胺在硫酸銅溶液下，利用電化學合成含銅的苯胺和1,8-萘二胺共聚複合膜，最後得到複合膜導電率與銅離子濃度趨勢圖。在實驗的第一部份，利用循環伏安法得到PAN、P(1,8-DAN)和P(AN-1,8-DAN)三個薄膜的CV圖，且將三個不同之薄膜利用四點探針測量電阻抗算出導電率，得導電率大小順序為PAN＞P(AN-1,8-DAN)＞P(1,8-DAN)。
在實驗的第二部份，將1,8-萘二胺和苯胺配製成1：1、1：5、1：10和1：20四種不同比例之薄膜，比較導電率和CV圖發現，1：10和1：20兩種比例之薄膜，導電率比其他兩種為佳，然後再利用這兩種比例各混合5種不同濃度硫酸銅溶液，使用循環伏安法製膜，之後用微分脈衝伏安法(DPV)確認薄膜上銅離子濃度的差別。
最後發現銅離子濃度範圍0~1000 ppm下，根據1,8-萘二胺和苯胺比例為1：20所得到銅離子含量與導電率之關係，判斷未知溶液複合膜之導電率推算成銅離子濃度，是最恰當的。

關鍵字

苯胺 ； 1,8萘二胺 ； 循環伏安法 ； 四點探針 ； 微分脈衝伏安法

並列摘要

The dissertation describes the studies of the relation between electric conductivity of composite films and the concentration of copper ions. The results come from the films which are made of aniline and 1,8-DAN in Copper(II) Sulfate solution by cyclic voltammetry. With four-point probe, using three different films to measure electric resistance and figure out conductivity, we know the order is PAN＞P(AN-1,8-DAN)＞P(1,8-DAN).In the second part, we have four kinds of films in different proportions made of 1,8 - DAN and aniline. The proportions are 1:1, 1:5, 1:10, and 1:20. Comparing conductivity and Cyclic voltammogram, the conductivity of the films which come from the two proportions(1:10, 1:20) is better than the other two. With the two proportions, we made the films in five different Copper(II) Sulfate solution. Then make sure the difference of concentration of copper ions in the films with differential pulse voltammetry (DPV).Finally, based on the range of concentration of copper ions which is between 0 to 1000 ppm, and according to the proportion of 1,8-DAN and aniline which is 1:10, we get the relation of conductivity and the concentration of copper ions. It is the most appropriate to figure out the concentration of copper ions with the composite films and conductivity in unknown solution.

並列關鍵字

Aniline ； 1,8-diaminonaphthalene ； Cyclic voltammetry ； Four-point probe ； Differential pulse voltammetry

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