[1]马楠楠,张翔,职红涛,等.PAN基弱碱性离子交换纤维对钒的吸附性能研究[J].郑州大学学报(工学版),2019,40(02):80-84.
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PAN基弱碱性离子交换纤维对钒的吸附性能研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
40
期数:
2019年02期
页码:
80-84
栏目:
出版日期:
2019-03-19

文章信息/Info

Title:
Adsorption Performance of Weak Alkaline Ion Exchange Fiber for Vanadium
作者:
马楠楠张翔职红涛段建榜冯修
文献标志码:
A
摘要:
摘要:本文以一种PAN基弱碱性离子交换纤维为材料,研究了其对钒的吸附性能。对比了两种不同型式的功能基纤维(多胺型、氯型)对钒吸附和再生性能的影响;探讨了pH、温度、吸附时间、钒溶液浓度对氯型纤维吸附性能的影响;考察了氢氧化钠解吸纤维的最佳浓度。实验结果表明:氯型纤维比多胺型纤维更稳定,吸附性能更优越;氯型纤维在pH=6~8吸附性能最好,温度越高吸附量越大,反应时间6h时吸附达到一种动态平衡,饱和离子吸附量为294 mg·g-1,钒的去除率达到98%以上。用0.5 mol·L-1的氢氧化钠进行解吸,解吸率达到 98.02%以上。
Abstract:
 A kind of PAN-based weak alkaline ion exchange fiber was synthesized and was used as adsorbent for Vanadium. The adsorption and regeneration performance of two different types of functional groups of ion exchange materials were compared. Effects of pH, temperature, time and the concentration of vanadium on fiber saturated adsorption amount were investigated. The optimal concentration of sodium hydroxide for desorption the fiber was discussed. The results show that the static adsorption capacity of Cl? form fiber are more superior; The maximum adsorption capacity (294 mg?L?1) is obtained under pH 6~8 and adsorption capacity increases with the increase of temperature, the adsorptive equilibrium can be achieved with 6 hours, and the removal ratio for Vanadium was more than 98%. The desorption rate of the fiber is above 98.02%, when the concentration of desorption solution (sodium hydroxide) is 0.5 mol·L-1.
更新日期/Last Update: 2019-03-24