Mussel-inspired antifouling magnetic activated carbon for uranium recovery from simulated seawater

Feifei Zhang; Hongsen Zhang; Rongrong Chen; Qi Liu; Jingyuan Liu; Cheng Wang; Zhiyao Sun; Jun Wang

doi:10.1016/j.jcis.2018.09.023

Mussel-inspired antifouling magnetic activated carbon for uranium recovery from simulated seawater

J Colloid Interface Sci. 2019 Jan 15:534:172-182. doi: 10.1016/j.jcis.2018.09.023. Epub 2018 Sep 7.

Authors

Feifei Zhang¹, Hongsen Zhang², Rongrong Chen³, Qi Liu⁴, Jingyuan Liu¹, Cheng Wang⁵, Zhiyao Sun⁶, Jun Wang⁷

Affiliations

¹ Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, Harbin Engineering University, 150001, China; College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
² Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, Harbin Engineering University, 150001, China. Electronic address: 15604515455@163.com.
³ Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, Harbin Engineering University, 150001, China; College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Institute of Advanced Marine Materials, Harbin Engineering University, 150001, China.
⁴ Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, Harbin Engineering University, 150001, China; College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Harbin Engineering University Capital Management Co. Ltd, Harbin 150001, China.
⁵ Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Heilongjiang University, Harbin 150086, China. Electronic address: wangcheng@hlju.edu.cn.
⁶ Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Heilongjiang University, Harbin 150086, China.
⁷ Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, Harbin Engineering University, 150001, China; College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Harbin Engineering University Capital Management Co. Ltd, Harbin 150001, China; Institute of Advanced Marine Materials, Harbin Engineering University, 150001, China. Electronic address: junwang@hrbeu.edu.cn.

PMID: 30218990
DOI: 10.1016/j.jcis.2018.09.023

Abstract

Undesirable bio-adhesion of microalgae on adsorbent can influence its adsorption capacity. In this report, we fabricated a novel mussel-inspired antifouling magnetic activated carbons which derived orange peel by integrated biosorption-pyrolysis process (MACs@PDA-Ag), via co-functionalization of poly-dopamine (PDA) and Ag nanoparticles (AgNPs), for the recovery of uranium (VI) from simulated seawater with antimicrobial adhesion performance; this process did not require an additional reducing agent. The effect of pH, concentration, contact time, fouling test against nitzschia closterium f.minutissima (GY-H8) were studied. Compared with MACs (632.91 mg/g at pH 7.0), the calculated maximum adsorption capacity of MACs@PDA-Ag increased to 657.89 mg/g at pH 8.0 and showed good recyclability. These data all fitted well with the Langmuir and pseudo-second order models. The possible removal mechanism by XPS is chelation (catechol hydroxyls, amine/imine units, the metal-oxygen and carboxylic) with uranium (VI). The antifouling tests indicated that the AgNPs-modified materials displayed the antimicrobial adhesion behavior, and the viability of the microorganism was not impacted. Thereby, the direct deposition of AgNPs onto the adsorbent has shown great potential for uranium (VI) recovery with an antifouling benefit and is environmentally friendly.

Keywords: Antimicrobial adhesion; Magnetic active carbon; Orange peel; Poly-dopamine; Silver nanoparticle; Uranium (VI) recovery.