Biochar is usually obtained by non-oxygenic thermal digestion of the biomass,and has advantages of high surface area,cost effectiveness,and good stability.
In this article,we reported a dual emissive multicolorful colorimetric fluorescent nanoprobe(Au NCs-CDs)which was composed of gold nanocluster(BSA-Au NCs)and carbon dots(CDs)by a certain proportion.
Fluorescence technology has been increasingly applied in dissolved organic matter(DOM)characterization due to its remarkable sensitivity and selectivity.