Ultrasonic-assisted fungi modification of lignocellulose-derived hierarchical porous carbon for efficient desalination

Biomass materials have received increasing attention due to their eco-friendly, high availability and low costs. However, these biomass materials have stubborn structural characteristics, which require specific pretreatment methods to promote practical value. Herein, we reported a novel strategy of ultrasonic-fungi pretreatment of lignocellulose to obtain biomass-based hierarchical porous carbon (LSC-FU). The structure of LSC-FU enables the fabricated electrode to exhibit high conductivity and rapid ion transport properties, with capacitance retention of 99.7 % after 5000 consecutive cycles. And it shows a high adsorption capacity (500 mg.L-1) of 29.39 mg.g(-1) with a 94.6 % adsorption capacity retention rate in the electrosorption test. The lignocellulose-based porous carbon electrodes obtained by this effective pretreatment method have great potential for the practical application of CDI. This work provides original outlooks to prepare high-performance carbon electrodes. It emphasizes the significance of sustainable development and green environmental protection by using natural biomass materials to prepare porous carbon materials.

Automated summary

This article reports a novel strategy of ultrasonic-fungi pretreatment of lignocellulose to obtain biomass-based hierarchical porous carbon. The fabricated electrode based on this carbon material exhibits high conductivity, rapid ion transport properties, and high adsorption capacity, making it suitable for practical application in CDI. This work emphasizes the importance of sustainable development and green environmental protection.