Xiaoying Jiang,Yan Zhang,Feiyang Zhang,Jiashuo Tian,Liuping Zhang,Xinrui Zhao,Fengling Cui
Defect engineering has become a significant research area in recent years; however, little has been reported on the biological method for modulating the intrinsic carbon defects of the biochar framework. Herein, a fungi-enabled method for the fabrication of porous carbon/Fe3O4/Ag (PC/Fe3O4/Ag) composites was developed, and the mechanism underlying the hierarchical structure is elucidated for the first time. By regulating the cultivation process of fungi on water hyacinth biomass, a well-developed interconnected structure and carbon defects acting as potential catalytic active sites were formed. This new material with antibacterial, adsorption and photodegradation properties could be an excellent choice for treating the mixed dyestuff effluents with oils and bacteria, also guiding pore channel regulation and defect engineering in materials science. Numerical simulations were carried out to demonstrate the remarkable catalytic activity.
Xiaoying Jiang,Yan Zhang,Feiyang Zhang,Fengling Cui
A new strategy about the biological way to modulate intrinsic carbon defects of the biochar framework was developed. Herein, the porous carbon/Fe3O4/Ag (PC/Fe3O4/Ag) composites are first prepared using a novel fungi-enabled method, and the mechanism underlying their excellent catalytic and adsorption properties was elucidated. Customization of microstructures and introducing defects in the carbon-based nanomaterial can be achieved through regulation of the fungus growth process on biomass, thereby improving the catalytic performance greatly. This work also opened a new area in materials science based on fungi-enabled defect engineering and pore channel regulation, providing unique insights into environment treatment. Theoretical calculations and simulations were carried out to understand the remarkable catalytic and adsorption performance.