Chitosan/lemon residues activated carbon efficiently removal of acid red 18 from aqueous solutions: batch study, isotherm and kinetics

被引：4

作者：

Xu, Yongyao ^{[1
]}

Shen, Wangqing ^{[2
]}

Liu, Yin ^{[1
]}

Wei, Jiafeng ^{[1
]}

机构：

[1] Anhui Univ Sci & Technol, Sch Mat Sci & Engn, Huainan, Anhui, Peoples R China

[2] Neijiang Normal Univ, Sch Chem & Chem Engn, Neijiang, Sichuan, Peoples R China

来源：

ENVIRONMENTAL TECHNOLOGY | 2023年 / 44卷 / 10期

关键词：

Lemon residues; activated carbon; dye removal; adsorption; kinetic; isotherm; ENHANCED ADSORPTION; METHYLENE-BLUE; POROUS CARBON; DYE; WASTE; DEGRADATION; PHOTOCATALYST; FABRICATION; OXIDE;

D O I：

10.1080/09593330.2021.2003439

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this research, chitosan-decorated activated carbon (AC-CS) was proposed. The AC was cross-linked with glutaraldehyde to prepare an adsorbent (AC-CS). The AC-CS has a rough surface. Adding the AC-CS directly to the dye solution can achieve simple and convenient removal of anionic azo dyes acid red 18 (AR-18). In the dye solution, the AC-CS was used as an adsorbent. The effects of pH, contact time, temperature, initial concentration of AR-18 and the AC-CS dosage on the adsorption efficiency were investigated. Full kinetic and isotherm analyses were also undertaken. In addition, the reusability of the AC-CS was evaluated, and the results showed that the removal rate of AR18 after regeneration remained relatively stable, above 90%. This experiment has shown that AC-CS is a promising anionic azo dye adsorbent.

引用

页码：1405 / 1414

页数：10

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