Multifunctional polyaniline modified calcium alginate aerogel membrane with antibacterial, oil-water separation, dye and heavy metal ions removal properties for complex water purification

Chaozhen Wang; Fangfang Wang; Hao Zhang; Yuenan Zhang; Chenguang Zhang; Wen Zang; Minjie Peng; Yiyu Yang; Shiwei Wang; Chen Xu; Aiguo Wu; Yujie Zhang

doi:10.1016/j.scitotenv.2024.172058

Multifunctional polyaniline modified calcium alginate aerogel membrane with antibacterial, oil-water separation, dye and heavy metal ions removal properties for complex water purification

Sci Total Environ. 2024 Jun 1:927:172058. doi: 10.1016/j.scitotenv.2024.172058. Epub 2024 Mar 28.

Authors

Chaozhen Wang¹, Fangfang Wang², Hao Zhang², Yuenan Zhang¹, Chenguang Zhang³, Wen Zang³, Minjie Peng³, Yiyu Yang³, Shiwei Wang¹, Chen Xu⁴, Aiguo Wu⁵, Yujie Zhang⁶

Affiliations

¹ Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; University of Chinese Academy of Sciences, Beijing 100049, China.
² Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
³ Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China.
⁴ Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address: xuchen@nimte.ac.cn.
⁵ Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address: aiguo@nimte.ac.cn.
⁶ Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address: zhangyujie@nimte.ac.cn.

PMID: 38552978
DOI: 10.1016/j.scitotenv.2024.172058

Abstract

With the rapid development of urbanization, the discharge of industrial wastewater has led to increasingly critical water pollution issues. Additionally, heavy metals, organic dyes, microorganisms and oil pollution often coexist and have persistence and harmfulness. Developing materials that can treat these complex pollutants simultaneously has important practical significance. In this study, a calcium alginate-based aerogel membrane (PANI@CA membrane) was prepared by spraying, polymerization, Ca²⁺ cross-linking and freeze-drying using aniline and sodium alginate as raw materials. Oil-water emulsion can be separated by PANI@CA membrane only under gravity, and the separation efficiency was as high as 99 %. At the same time, the membrane can effectively intercept or adsorb organic dyes and heavy metal ions. The removal rates of methylene blue and Congo red were above 92 % and 63 % respectively even after ten times of cyclic filtration. The removal rate of Pb²⁺ was up to 95 %. In addition, PANI@CA membrane shows excellent photothermal conversion ability, and it can effectively kill Staphylococcus aureus under 808 nm laser irradiation. PANI@CA membrane has the advantages of low cost, simple preparation, good stability and high recycling ability, and has potential application prospects in wastewater treatment.

Keywords: Aerogel membrane; Calcium alginate; Photothermal conversion; Polyaniline; Staphylococcus aureus.

MeSH terms

Alginates* / chemistry
Aniline Compounds*
Anti-Bacterial Agents*
Coloring Agents / chemistry
Membranes, Artificial*
Metals, Heavy*
Waste Disposal, Fluid / methods
Wastewater / chemistry
Water Pollutants, Chemical* / analysis
Water Purification* / methods

Substances

Alginates
Water Pollutants, Chemical
Metals, Heavy
Aniline Compounds
polyaniline
Anti-Bacterial Agents
Membranes, Artificial
Coloring Agents
Wastewater