Removal of heavy metal ions and anionic dyes from aqueous solutions using amide-functionalized cellulose-based adsorbents

Jing Liu; Tai-Wen Chen; Ya-Li Yang; Zong-Chun Bai; Li-Ru Xia; Min Wang; Xiao-Lan Lv; Li Li

doi:10.1016/j.carbpol.2019.115619

Removal of heavy metal ions and anionic dyes from aqueous solutions using amide-functionalized cellulose-based adsorbents

Carbohydr Polym. 2020 Feb 15:230:115619. doi: 10.1016/j.carbpol.2019.115619. Epub 2019 Nov 14.

Authors

Jing Liu¹, Tai-Wen Chen¹, Ya-Li Yang¹, Zong-Chun Bai², Li-Ru Xia², Min Wang³, Xiao-Lan Lv⁴, Li Li⁵

Affiliations

¹ Department of Pharmaceutical Analysis, China Pharmaceutical University, China.
² Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, China; Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, China.
³ Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, China.
⁴ Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, China; Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, China; School of Materials Science & Engineering, Jiangsu University, China. Electronic address: lxlanny@126.com.
⁵ Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, China; Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, China; School of Materials Science & Engineering, Jiangsu University, China. Electronic address: muzishuiqudou@163.com.

PMID: 31887868
DOI: 10.1016/j.carbpol.2019.115619

Abstract

An efficient, ecofriendly, amide-functionalized cellulose-based porous adsorbent was synthesized by a cross-linking reaction between cellulose filament fibers and bisacrylamide at room temperature. This process is simple, fast and inexpensive, and has significant potential for industrial applications. The prepared material has numerous adsorption sites, resulting in the highly efficient removal of anionic dyes and copper ions from aqueous media. The maximum adsorption capacities of this cellulose-based adsorbent for the dyes Acid Black 1 and Acid Red 18 and for copper ions were 751.8, 417.9, and 51.3 mg g^-1, respectively. Regeneration experiments showed that the removal efficiencies for all model pollutants remained above 92 % after five consecutive recycling trials. These results indicate that amide-functionalized cellulose-based adsorbents could possibly be used to treat industrial wastewaters.

Keywords: Adsorption; Amide-functionalized adsorbent; Cellulose-based adsorbent; Chemical cross-linking.