皮胶原纤维固载Zr(IV)对水体中苯羧酸的吸附特性

顾迎春; 廖学品; 石碧

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皮胶原纤维固载Zr(IV)对水体中苯羧酸的吸附特性

化学工程 | 更新时间：2023-11-14

- 皮胶原纤维固载Zr(IV)对水体中苯羧酸的吸附特性
- Adsorption Characteristics of Benzene Carboxylic Acids from Aqueous Solution by Zr(IV)-loaded Collagen Fiber
- 工程科学与技术 2010年42卷第3期页码：189-194
- 作者机构：
  
  四川大学制革清洁技术国家工程实验室
- 作者简介：
- 基金信息：
  
  国家科技支撑计划资助项目(2006BAC02A09);四川省重点科学与技术研究资助项目(04SG012-009);四川大学青年科学基金资助项目(200452)
- DOI：
  中图分类号：
- 纸质出版日期：2010，
  
  网络出版日期：2009-5-26，
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顾迎春,廖学品,石碧.皮胶原纤维固载Zr(IV)对水体中苯羧酸的吸附特性[J].工程科学与技术,2010,42(3):189-194.

Gu Yingchun, Liao Xuepin, Shi Bi. Adsorption Characteristics of Benzene Carboxylic Acids from Aqueous Solution by Zr(IV)-loaded Collagen Fiber[J]. Advanced Engineering Sciences, 2010,42(3):189-194.
顾迎春,廖学品,石碧.皮胶原纤维固载Zr(IV)对水体中苯羧酸的吸附特性[J].工程科学与技术,2010,42(3):189-194. DOI：

Gu Yingchun, Liao Xuepin, Shi Bi. Adsorption Characteristics of Benzene Carboxylic Acids from Aqueous Solution by Zr(IV)-loaded Collagen Fiber[J]. Advanced Engineering Sciences, 2010,42(3):189-194. DOI：

摘要

中文摘要: 制备皮胶原纤维固载Zr(IV)吸附剂(ZLCF)，并考察ZLCF对水体中苯甲酸(BA)、邻苯二甲酸(o-PA)、对苯二甲酸(p-PA)和间苯二甲酸(m-PA)的吸附特性。研究表明：这4种苯羧酸的吸附平衡同时符合Langmuir和Freundlich方程，但随着它们的羧基数量和位置的不同，其吸附容量也随之变化。总体看，ZLCF对所研究的苯羧酸均具有较大的吸附容量。当苯羧酸溶液(10 ml)的初始浓度为6 mmol/L、吸附温度为293 K时，ZLCF(0.05 g)对BA、o-PA、m-PA和p-PA的吸附容量分别达0.4616、0.5892、0.4912和0.3138 mmol/g。吸附动力学研究表明：BA的吸附符合拟一级速率方程，边界层扩散为主控步骤；而o-PA、m-PA和p-PA的吸附符合拟二级速率方程，化学吸附为主控步骤。

Abstract

Abstract:A novel adsorbent

Zr(IV)-loaded collagen fiber (ZLCF)

was prepared and its adsorption characteristics to benzoic acid (BA)

o-phthalic acid (o-PA)

p-phthalic acid (p-PA) and m-phthalic acid (m-PA) from aqueous solution were investigated. It was found that the adsorption equilibrium data of these benzene carboxylic acids can be well fitted by both Langmuir and Freundlich models. But the adsorption capacity of the benzene carboxylic acids changes with the number and position of carboxyl groups on benzene ring. In general

ZLCF has high adsorption capacity to all benzene carboxylic acids investigated. The adsorption capacity of BA

o-PA

m-PA and p-PA was 0.4616

0.5892

0.4912 and 0.3138 mmol/g

respectively

when 10 ml of 6 mmol/L benzene carboxylic acid solution was adsorbed by 0.05 g ZLCF at 293 K. Furthermore

the studies of the adsorption kinetics indicated that the adsorption kinetics of BA was close to the pseudo first-order-rate model and thus the boundary diffusion would be the rate-controlling step. In contrast

the adsorption kinetics of o-PA

m-PA and p-PA can be well described by the pseudo-second-order rate model

which implies that the chemical adsorption should be the rate-controlling step.

关键词

皮胶原固载金属吸附剂固载Zr(IV)苯羧酸吸附

Keywords

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