Adsorption of glycine on resin D301

LI Wenli; ZHOU Cairong

doi:10.3969/j.issn.0438-1157.2014.08.026

您当前的位置：

首页 >

文章列表页 >

Adsorption of glycine on resin D301

更新时间：2025-12-10

- Adsorption of glycine on resin D301
- CIESC Journal Issue 8, Pages: 3032-3038(2014)
- 作者机构：
  
  郑州大学化工与能源学院,河南,郑州,450001
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.08.026
  CLC： 647.32TQ457.2
- Online First：05 August 2014，
  
  Published：05 August 2014
- 稿件说明：
移动端阅览
LI Wenli, ZHOU Cairong. Adsorption of glycine on resin D301[J]. CIESC Journal, 2014, (8): 3032-3038.
DOI：

LI Wenli, ZHOU Cairong. Adsorption of glycine on resin D301[J]. CIESC Journal, 2014, (8): 3032-3038. DOI： 10.3969/j.issn.0438-1157.2014.08.026.

摘要

通过静态吸附法研究了树脂D301对水溶液中甘氨酸的吸附行为。采用单因素实验法确定了最佳吸附条件为pH 7.5，温度35℃，时间45 min，吸附剂用量为0.1 g，在此条件下最大平衡吸附量可达794.81 mg·g-1。同时探究了D301对甘氨酸溶液吸附的热力学行为，测得了303.15～318.15 K温度范围内的吸附等温线数据，用Langmuir、Freundlich、Temkin方程对此进行拟合，并根据热力学原理计算得到吸附过程中ΔHθ、ΔGθ、ΔSθ值和吸附表观活化能。结果表明等温吸附平衡符合Langmuir等温线模型，其ΔHθ 134.75 kJ·mol-1，ΔGθ-6.312 kJ·mol-1， ΔSθ 450.806 J·mol-1·K-1，Ea为81.27 kJ·mol-1。研究结果表明D301对甘氨酸的吸附为化学吸附和物理吸附共存且为自发进行的吸热过程。

Abstract

The adsorption of glycine on resin D301 in glycine aqueous solution was investigated by static adsorption experiments. The optimum adsorption conditions were found by single factor experiments: adsorbent dosage 0.1 g

pH value of solution 7.5

and temperature 35℃. Under these adsorption conditions

the time required for adsorption equilibrium was 45 min

with the maximal equilibrium adsorption amount as 794.81 mg·g-1. The thermodynamic performance of the adsorption process was investigated in the range from 303.15 K to 318.15 K. Langmuir

Freundlich and Temkin isothermal adsorption models were employed to fit the experimental data. The results show that the adsorption of glycine on resin D301 is in accordance with the Langmuir isothermal adsorption model. The thermodynamic parameters

such as ΔHθ

ΔGθ

ΔSθ and apparent activation energy

were calculated to be 134.75 kJ·mol-1

-6.312 kJ·mol-1

450.806 J·mol-1·K-1

and 81.27 kJ·mol-1

respectively. The results indicate that the adsorption process of glycine onto resin D301 is a spontaneous endothermic process with physical and chemical adsorption.

关键词

Keywords

references

Views

402

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Adsorption properties of naphthalenesulfonate dispersant onto different crystal pyraclostrobin particle surfaces

Thermodynamics and kinetics of D-glyceric acid adsorption on ion exchange resin

Selective adsorption of Pb2+, Ni2+ and Cr3+ by polyacrylic acid/attapulgite composite adsorbents

Adsorption characteristics of styrene-sodium methacrylate copolymer on imidacloprid particle surface

Preparation and adsorption properties of temperature sensitive poly(N-isopropylacrylamide) /monosodium glutamate/ chitosan composites

Related Author

WANG Liying

JIANG Zhendong

XU Yong

CHEN Haohao

XIANG Sheng

GUO Xinyu

WU Xuemin

WANG Baobei

Related Institution

College of Science, China Agricultural University

College of Oceanography and Food Science, Quanzhou Normal University

Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University

Huaian Key Laboratory of Advanced Environment Functional Materials, Key Laboratory for Chemistry of Low-Dimensional Materials of Jiangsu Province, School of Chemistry and Chemical Engineering, Huaiyin Normal University

State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University

⁰