Poly(PEI‐catechol‐tetraethylenepentamine) was prepared by “one‐pot method” for removing Reactive Red 195

Author:

Liang Ze1,Lu Lin2,Gao Tingting3,Liu Qinze1ORCID,Yang Zhizhou1,Zhou Ruoyao1,Peng Guofeng4,Yao Jinshui1,Zhang Changbin5

Affiliation:

1. School of Materials Science and Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan People's Republic of China

2. State Key Laboratory of Marine Resources Utilization in South China Sea School of Food Science and Engineering, Hainan University Haikou China

3. School of Chemistry and Chemical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan China

4. Shandong Rike Chemical Co., Ltd. Weifang People's Republic of China

5. Research Center for Eco‐Environmental Sciences Chinese Academy of Science Beijing People's Republic of China

Abstract

AbstractWastewater containing dyes is frequently discharged by industrial processes and needs separation and recycling. To solve this problem, it is important to research and develop environmentally friendly, efficient adsorbent materials for pollutant separation and recovery. In this study, a poly(PEI‐catechol‐tetraethylenepentamine) (PPCT) adsorbent was synthesized using a simple catecholamine reaction. This adsorbent exhibited high adsorption capacity and excellent removal efficiency for Reactive Red 195 (RR‐195) in wastewater. The material was characterized using SEM, FT‐IR, TGA, EA, and XPS. Its performance was optimized by varying the type of polyethyleneimine and the amount added during the preparation process. The effects of temperature, pH, contact time, and salt concentration on the adsorption were systematically investigated. Additionally, the experimental data showed consistency with both the Langmuir and pseudo‐second‐order kinetic models, simultaneously. The maximum adsorption capacity can reach 1754 mg g−1 at 303 K, with a retention rate of 86.6% after two cycles. The removal rate exceeds 98% at a concentration of 400 mg g−1 or lower. Additionally, the protonated amine group in PPCT carries a positive charge under acidic conditions, enabling selective adsorption of the anionic dye RR‐195. Consequently, PPCT exhibits an excellent adsorption effect on RR‐195 and holds promising applications in pollutant removal.

Funder

Natural Science Foundation of Shandong Province

Publisher

Wiley

Subject

Materials Chemistry,Polymers and Plastics,Surfaces, Coatings and Films,General Chemistry

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3