[1]姚先富,周咪.甲醛交联板栗壳色素树脂吸附水中Cu(II)的性能研究[J].江苏林业科技,2024,51(01):6-10.[doi:10.3969/j.issn.1001-7380.2024.01.002]
　Yao Xianfu,Zhou Mi.Adsorption of Cu(II) in water by formaldehyde crosslinked chestnut shell pigment resin[J].Journal of Jiangsu Forestry Science &Technology,2024,51(01):6-10.[doi:10.3969/j.issn.1001-7380.2024.01.002]
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甲醛交联板栗壳色素树脂吸附水中Cu(II)的性能研究()
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《江苏林业科技》[ISSN:1001-7380/CN:32-1236/S]

卷:
第51卷
期数:
2024年01期
页码:
6-10
栏目:
试验研究
出版日期:
2024-03-05

文章信息/Info

Title:
Adsorption of Cu(II) in water by formaldehyde crosslinked chestnut shell pigment resin
文章编号:
1001-7380（2024）01-0006-05
作者:
姚先富; 周咪
西南林业大学西南山地森林资源保育与利用教育部重点实验室, 云南 昆明 650224
Author(s):
Yao Xianfu;  Zhou Mi
Key Laboratory for Forest Resources Conservation and Use in the Southwest Mountains ofChina, Ministry of Education, Southwest Forestry University, Kunming 650224，China
关键词:
板栗壳色素; 甲醛; 树脂; 吸附; Cu(II)
Keywords:
Chestnut shell pigment; Formaldehyde;  Resin; Adsorption; Cu(II)
分类号:
O647.32；S664.2；X52
DOI:
10.3969/j.issn.1001-7380.2024.01.002
文献标志码:
A
摘要:
研究用农林剩余物板栗壳提取板栗壳色素，将板栗壳色素与甲醛进行交联合成甲醛交联板栗壳色素树脂。采用震荡平衡批处理法研究了pH、吸附质浓度、温度、吸附时间对复合材料吸附水中Cu(II)的影响；利用准一级动力学、准二级动力学模型拟合了吸附动力学数据，并用Langmuir，Freundlich等温线对吸附平衡数据进行拟合。结果表明：复合材料吸附Cu(II)的最佳pH为6；最佳吸附温度为300 K，吸附过程为放热反应；吸附在60 min基本达到平衡；动力学数据符合准二级动力学模型，以化学吸附占主导。等温平衡符合Langmuir模型，为单层吸附，在300 K时对Cu(II)的最大单层吸附量为30.49 mg/g。
Abstract:
Chestnut shell pigment was extracted from agricultural and forestry chestnut shell residue and synthesized into formaldehyde crosslinked chestnut shell pigment resin. The effects of pH, adsorbate concentration, temperature and adsorption time on the adsorption of Cu(II) in water were studied by oscillating balanced batch method. Quasi-first-order and quasi-second-order kinetic models were used to fit the adsorption kinetic data, and Langmuir and Freundlich isotherm were used to fit the adsorption equilibrium data. The results showed that the optimum pH of Cu(II) adsorption was 6, the optimal adsorption temperature was 300 K, and the adsorption process was exothermic. The adsorption basically reached equilibrium in 60 min. The kinetic data were consistent with the quasi-second-order kinetic model, which was dominated by chemisorption. The isothermal equilibrium conformed to the Langmuir model, which was monolayer adsorption, and the maximum monolayer adsorption of Cu(II) at 300 K was 30.49 mg/g.

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相似文献/References:

[1]曹春芮,刘章军,康海生,等.板栗壳色素醛交联树脂对水中Pb(Ⅱ)吸附性能的研究[J].江苏林业科技,2021,48(06):29.[doi:10.3969/j.issn.1001-7380.2021.06.005]
　Cao Chunrui,Liu Zhangjun,Kang Haisheng,et al.Elimination of Pb(Ⅱ) from water via adsorption to resin of chestnut shell pigment cross-linked with formaldehyde[J].Journal of Jiangsu Forestry Science &Technology,2021,48(01):29.[doi:10.3969/j.issn.1001-7380.2021.06.005]

备注/Memo

备注/Memo:
收稿日期：2023-11-22;修回日期：2023-12-28
基金项目：云南省农业基础研究联合专项“板栗壳色素基多孔树脂微球合成及其处理含铬废水应用基础研究”（2008FG001-008）
作者简介：姚先富（1997- ），男，云南麻栗坡人，硕士研究生。研究方向为经济林栽培与利用。E-mail:1972114995@qq.com
更新日期/Last Update: 2024-05-09