Microstructure and properties of in-situ prepared cellulosic biomass carbon based diatomite composite

ABSTRACT

Cellulosic biomass carbon based diatomite composite powders are synthesised in situ via the hypoxia pyrolysis method, and the micro-structure, surface morphology and performance of the as-prepared samples are characterised. When the concentration of the diatomite increases, the carbonaceous structure of the composites is highly disordered, the surface functional groups increase, and the typical porous structure of cellulosic biomass carbon based porous diatomite composite is measured. The adsorption capacity of organic dyes onto biomass carbon composite is enhanced. As the composite has many pore channels in the mesoporous region (especially for 2∼10 nm), porous diatomite with excellent hydraulic conductivity favours a conducting MB solution and improves the chemisorption performance (153.2 mg/g) of biomass carbon in the composite.

KEYWORDS:

• Diatomite
• biomass carbon
• composite
• mesoporous

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

The authors gratefully acknowledge financial support from the National Natural Science Foundation of China (NSFC, grant number 41472035) and China Scholarship Council (CSC).