The effect of succus bambusae on bamboo hemicellulose yellowing was studied.Their surface morphology and chemical composition were characterized by AFM (atomic force microscope)and XPS (or ESCA,electron spectroscopy for chemical analysis),which can provide the basis for obtaining high-yield of bamboo pulp yellowing.The results showed that the color of hemicellulose separated from raw material changed from white to light brown after adding succus bambusae into it,due to the adsorption of succus bambusae on the hemicellulose surface as indicated by SEM and AFM,and that the structure of succus bambusae on the surface hemicellulose could be varied by UV-light irradiation as demonstrated by XPS.So,the deposition of succus bambusae materials on the hemicellulose surface can decrease whiteness of bamboo pulp,while photo-aging can extend hemicellulose yellowing of bamboo pulp.
