Synthesis of Cu2O/biochar composites and their antibacterial activity against Escherichia coli

6th Annual International Conference on Material Science and Environmental Engineering

材料科学;生态环境科学

Yang, Bujun^1 ; Wang, Haiqian^1 ; Yang, Qing^1 ; Zhang, Qikai^1 ; Zou, Lanmei^1 ; Wu, Min^2 ; Zhang, Hongbin^2 ; Song, Qiusheng^1 ; Yu, Shaoming^1

School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui

230009, China^1

School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui

230009, China^2

关键词: Anti-bacterial activity;    Anti-bacterial performance;    Application prospect;    Brunauer emmett tellers;    Cuprous oxide;    Escherichia coli (E. coli);    Field emission scanning electron microscopes;    Structure and morphology;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/472/1/012048/pdf
DOI  :  10.1088/1757-899X/472/1/012048

来源: IOP

【 摘 要 】

In this study, distilers' grains were used to prepare biochar, which is renewable and ecofriendly, then cuprous oxides nanoparticles were loaded to the biochar to improve the properties of Cu2O. Their structure and morphology were characterized by X-ray diffraction (XRD), field-emission scanning electron microscope (FE-SEM), and brunauer-emmett-teller (BET) specific surface area. The results showed that the Cu2O nanoparticles were loaded onto the biochar successfully and the biochar-based Cu2O nanoparticles (Cu2O/biochar composites) have larger specific surface area than pure Cu2O nanoparticles. Their antibacterial activity against Escherichia coli (E. coli) was examined by tablet colony counting method and optical density (OD) method. The results showed that the Cu2O/biochar composites were more effective and had superior antibacterial performance than pure Cu2O nanoparticles which indicated that Cu2O/biochar composites have good application prospect in antibacterial field.