Preparation of Core-shell Magnetic Nanoparticles Carrier for Treatment of Emulsified Oil

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Ding, Yeli^1 ; Zhang, Shaojun^1 ; Shi, Jianqiang^1 ; Jiang, Chunxiao^1

College of Naval Architecture and Marine Engineering, Shandong Jiaotong University, Shandong, China^1

关键词: Chemical coprecipitation method;    Core-shell magnetic nanoparticles;    Dispersion polymerization;    Emulsified oil;    Fe3O4 nanoparticles;    Immobilized microorganism;    Magnetic particle;    Saturated magnetization;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/5/052020/pdf
DOI  :  10.1088/1755-1315/300/5/052020

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The Fe3O4 nanoparticles was prepared by chemical co-precipitation method, and modified with polyethylene glycol and lauryl sodium sulfate to obtain amphiphilic magnetic core. Core-shell magnetic particles (CMP) were prepared by modified dispersion polymerization method. After characterization, the contact angle θ of material was 133.4°, and the specific surface area of CMP reached to 1032.43 m2/g. The absorption rate up to 27.1007 g/g, and the oil release rate was up to 96.19%, ensure it fully adsorptive to the emulsified oily wastewater. The saturated magnetization of MPP was 3.95 emu/g, showed strong magnetic response. It is beneficial for recovery and reuse the material. After 12 hour degradation of crude oil, CMP immobilized with petroleum oil degrading strains to treat emulsified oil was 13.86% higher than that of free bacterial cells. The results of this research provide a reference for the rapid adsorption and degradation of emulsified oil wastewater by immobilized microorganisms with novel magnetic materials.