Insights into efficient adsorption of the typical pharmaceutical pollutant with an amphiphilic cellulose aerogel

Yifan Liu; Zuxue Liang; Chunxiang Lin; Xiaoxia Ye; Yuancai Lv; Pingfan Xu; Minghua Liu

doi:10.1016/j.chemosphere.2021.132978

Insights into efficient adsorption of the typical pharmaceutical pollutant with an amphiphilic cellulose aerogel

Chemosphere. 2022 Mar;291(Pt 3):132978. doi: 10.1016/j.chemosphere.2021.132978. Epub 2021 Nov 19.

Authors

Yifan Liu¹, Zuxue Liang², Chunxiang Lin³, Xiaoxia Ye⁴, Yuancai Lv⁵, Pingfan Xu⁶, Minghua Liu⁷

Affiliations

¹ College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China; Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, College of Environment & Safety Engineering, Fuzhou University, Fuzhou, 350108, China. Electronic address: yfanym@fzu.edu.cn.
² Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, College of Environment & Safety Engineering, Fuzhou University, Fuzhou, 350108, China. Electronic address: lzx0901anm@163.com.
³ Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, College of Environment & Safety Engineering, Fuzhou University, Fuzhou, 350108, China. Electronic address: lcx2010@fzu.edu.cn.
⁴ Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, College of Environment & Safety Engineering, Fuzhou University, Fuzhou, 350108, China. Electronic address: yexiaoxia@fzu.edu.cn.
⁵ Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, College of Environment & Safety Engineering, Fuzhou University, Fuzhou, 350108, China. Electronic address: yclv@fzu.edu.cn.
⁶ School of Advanced Manufacturing, Fuzhou University, Jinjiang, 362200, China. Electronic address: xupingfan@fzu.edu.cn.
⁷ College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China; Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, College of Environment & Safety Engineering, Fuzhou University, Fuzhou, 350108, China. Electronic address: mhliu2000@fzu.edu.cn.

PMID: 34808203
DOI: 10.1016/j.chemosphere.2021.132978

Abstract

An amphiphilic cellulose aerogel (HCNC-TPB/TMC) was fabricated by grafting 1,3,5-Tris (4-aminophenyl)benzene (TPB) and trimesoyl chloride (TMC) onto the aldehyde nanocellulose through Schiff alkali and substitution reaction. The obtained HCNC-TPB/TMC exhibited good morphology with cellulose fiber and owned abundant hydrophilic amino and carboxyl groups and hydrophobic aromatic groups. The batch adsorption experiments demonstrated that HCNC-TPB/TMC showed excellent adsorption performance (Q_max = 526.32 mg g^-1) for sodium diclofenac (DCF), wide pH applicability (4-10) and outstanding stability and reusability. The DCF adsorption obeyed the pseudo-second-order kinetic model and the Langmuir isotherm, and underwent a spontaneous exothermic process. The main adsorption mechanisms involved electrostatic interaction, hydrogen bonds, π-π stacking interaction and hydrophobic effect. Importantly, the introduced carboxyl aromatic groups on TMC could effectively strengthen the hydrogen bonds and the π-π stacking between HCNC-TPB/TMC and DCF.

Keywords: Adsorption; Amphipathy; Cellulose aerogel; Sodium diclofenac; Synergy.

MeSH terms

Adsorption
Cellulose
Environmental Pollutants*
Kinetics
Pharmaceutical Preparations*
Water Pollutants, Chemical*

Substances

Environmental Pollutants
Pharmaceutical Preparations
Water Pollutants, Chemical
Cellulose