Adsorption kinetics analysis and optimization of Bisphenol A onto magnetic activated carbon with shrimp shell based precursor

双酚A 吸附 活性炭 吸附 比表面积 响应面法 化学工程 生物量(生态学) 化学 热解 废水 纤维素 核化学 有机化学 色谱法 废物管理 催化作用 海洋学 地质学 工程类 环氧树脂
作者
Fatemeh Fazeli Zafar,Bahram Barati,Hassan Rasoulzadeh,Amir Sheikhmohammadi,Shuang Wang,Hao Chen
出处
期刊:Biomass & Bioenergy [Elsevier BV]
卷期号:166: 106604-106604 被引量:9
标识
DOI:10.1016/j.biombioe.2022.106604
摘要

Activated carbons synthesized from biomass (agricultural and food wastes) are considered promising materials for adsorbing organic pollutants. In this study, the mixture of shrimp shell (SS) and cellulose (C) were used as precursors for the synthesis of activated carbon ([email protected]) with high surface area, well-developed pore structure and stable structure. On this basis, the magnetic adsorption material was prepared through NaHCO3 activation and Fe3O4 precipitation. Mean pore diameter (nm), surface area (m2·g−1), and micropore size (cm3·g−1) of [email protected] were characterized by SEM-EDS and N2 sorption analyses. The characterization of [email protected] revealed that the optimal mass ratio of [email protected] and NaHCO3 was 1:1.5. In the absorption of Bisphenol A (BPA), the synergistic effects of BPA concentration, pH, and retention time were analyzed by response surface methodology (RSM). A pseudo-second-order model was proposed, which revealed the maximum adsorption capacity of the BPA onto [email protected] was 207.77 mg g−1. To test the reusability of [email protected] adsorbent, 5 cycles of pollutant removal experiments were carried out. This work provides a synthesis and optimization method of biomass-based activated carbons for the absorption of organic pollutants in wastewater.
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