纤维素科学与技术2026，Vol.34Issue(1)：48-58,11.DOI:10.16561/j.cnki.xws.2026.01.01
Fe3+交联羧甲基纤维素钠粘合剂制备高耐受性颗粒活性炭
Fabrication of High-tolerance Granular Activated Carbon Using Fe3+-Crosslinked Sodium Carboxymethyl Cellulose as a Binder
谢子城 1宋斌 2朱海鑫 1刘晖 1罗杰 1何锦嵘 1黄月文 2王斌2
作者信息
- 1. 中国科学院广州化学研究所,广东 广州 510650||中国科学院大学,北京 100049||中国科学院新型特种精细化学品工程实验室,广东 广州 510650
- 2. 中国科学院广州化学研究所,广东 广州 510650||中国科学院大学,北京 100049||中国科学院新型特种精细化学品工程实验室,广东 广州 510650||国科广化(南雄)新材料研究院有限公司,广东 南雄 512440
- 折叠
摘要
Abstract
Coconut shell activated carbon powder holds significant application value in wastewater and exhaust gas treatment.However,it faces challenges such as difficulty in immobilization and poor recyclability,which can easily lead to secondary pollution.The development of biomass-based binders is an important strategy for enhancing and improving the stability of powdered adsorbents.In this study,the green biomass material sodium carboxymethyl cellulose(CMC)was modified.Through thermal cross-linking and the introduction of cross-linking sites provided by bridging with modified Fe3+ions,its mechanical properties and solvent resistance were improved.This modification addresses the issue of traditional CMC being easily soluble in water,enabling the activated carbon granules to adapt to various environments.Using powdered activated carbon with a particle size of 75～150 μm and a binder-to-activated-carbon mass ratio of 0.9:1,the resulting granules achieved a BET surface area of 871.83 m2/g without requiring an activation step,with a porosity reaching 91.02%of the surface area of the pre-formed powdered activated carbon.The pellet hardness measured via a standard hardness testing method was comparable to that of commercial activated carbon.Cyclic adsorption-desorption tests indicated that the activated carbon prepared with this modified binder shows potential for removing organic compounds from wastewater and for regeneration and reuse in various applications,suggesting promising commercial prospects.关键词
改性羧甲基纤维素钠/椰壳炭/造粒/粘结剂Key words
modified sodium carboxymethyl cellulose/coconut shell activated carbon/granulation/binder分类
通用工业技术引用本文复制引用
谢子城,宋斌,朱海鑫,刘晖,罗杰,何锦嵘,黄月文,王斌..Fe3+交联羧甲基纤维素钠粘合剂制备高耐受性颗粒活性炭[J].纤维素科学与技术,2026,34(1):48-58,11.
