Adsorption of lead and tetracycline in aqueous solution by magnetic biomimetic bone composite

• Published in: Polymer bulletin (Berlin, Germany) Vol. 81; no. 1; pp. 297 - 315
• Main Authors: Ji, Zheng, Zhang, Yansong, Yan, Haiyang, Wu, Bo, Wei, Bangchang, Guo, Yanyan, Wang, Huchuan, Li, Chuanrun
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 2024
• Subjects: Characterization and Evaluation of Materials; Chemistry; Chemistry and Materials Science; Complex Fluids and Microfluidics; Organic Chemistry; Original Paper; Physical Chemistry; Polymer Sciences; Soft and Granular Matter; Biomimetic bone composite; Antibiotic; Adsorption; Heavy metal
• ISSN: 0170-0839; 1436-2449
• DOI: 10.1007/s00289-023-04715-7

Heavy metals and antibiotics wastewater are toxic, harmful, and have become a serious threat to human health. Here, we designed and synthesized novel biomimetic bone composites PMCH and FS@PMCH for the removal of heavy metals and antibiotics from wastewater. The pseudo-second-order and Langmuir models fitted well with the kinetic and isothermal adsorption data, respectively. Under the optimal experimental conditions (the pH of 5 and the temperature of 298.15 K), the theoretical saturated adsorption capacities for Pb (II) and TC were 377.01 mg g −1 and 99.54 mg g −1 . The XPS results confirmed that the adsorption mechanism of PMCH and FS@PMCH on Pb (II) and TC was mainly electrostatic interaction and H-bond, followed by ion exchange, complexation, and pore filling. Therefore, the FS@PMCH is a potential adsorbent and purifier for Pb (II)- and TC-contaminated water.