Adsorption of cadmium and lead ions onto regenerated lignin from pretreatment liquid of rapeseed stalk

DU Ruoyu; LIU Wei; XU Binbin; WANG Xiaoping; HE Youzhou; ZHENG Xuxu

doi:10.11949/j.issn.0438-1157.20150832

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Adsorption of cadmium and lead ions onto regenerated lignin from pretreatment liquid of rapeseed stalk

更新时间：2025-12-10

- Adsorption of cadmium and lead ions onto regenerated lignin from pretreatment liquid of rapeseed stalk
- CIESC Journal Issue 9, Pages: 3726-3732(2015)
- 作者机构：
  
  重庆工商大学催化与功能有机分子重庆市重点实验室, 环境与资源学院,重庆,400067
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150832
  CLC： Q353.9X703.5
- Online First：05 September 2015，
  
  Published：05 September 2015
- 稿件说明：
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DU Ruoyu, LIU Wei, XU Binbin, et al. Adsorption of cadmium and lead ions onto regenerated lignin from pretreatment liquid of rapeseed stalk[J]. CIESC Journal, 2015, (9): 3726-3732.
DOI：

DU Ruoyu, LIU Wei, XU Binbin, et al. Adsorption of cadmium and lead ions onto regenerated lignin from pretreatment liquid of rapeseed stalk[J]. CIESC Journal, 2015, (9): 3726-3732. DOI： 10.11949/j.issn.0438-1157.20150832.

摘要

采用有机酸法处理菜籽秆并从预处理废液中再生酸不溶性木质素固体

之后对模拟废液中的镉、铅离子进行吸附实验。探讨了木质素再生策略、结晶度、比表面积与基团组成对重金属离子吸附效果的影响。实验结果表明:该类再生木质素能有效地吸附模拟废液中的Cd2+、Pb2+离子

其功能基团组成是影响吸附效果的关键因素。此外

两种木质素吸附剂吸附Cd2+离子的能力均强于吸附Pb2+离子的能力。

Abstract

Acid-insoluble lignin solids were regenerated from the organic-acid pretreatment waste liquor of rapeseed stalk and were used for the adsorption of cadmium and lead ions from the artificial waste liquor. The influence of regeneration strategy

crystallinity

surface area and functional group content on the adsorption efficiency were studied in this paper. The results indicated that these two types regenerated lignins can effectively adsorb Cd2+

Pb2+ ions from artificial waste liquor and the content of functional group plays an key factor. In addition

the adsorbability of both two types of lignins is larger for Cd2+ ions than for Pb2+ ions.

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