Deposition behavior of lignin on solid surfaces assessed by stagnation point adsorption reflectometry.

ABSTRACT: The deposition behavior of lignin on a solid surface was studied using stagnation point adsorption reflectometry (SPAR) comprehensively. In this study, the light absorption coefficient of lignin (τ = 20 476 m^-1) at 633 nm wavelength was considered to define a new imaginary refractive index (k) used in the SPAR technique for adsorption analysis. The inclusion of k in the adsorption model yielded an adsorbed amount (Γ) of 1.11 mg m^-2, leading to the quality factor (Q _f) of 31.71 mg m^-2. At a lower concentration, the deposition of lignin on the surface was increased, and it generated a maximum sticking coefficient of β = 0.71 at 25 mg L^-1 on the surface. At the concentration range of 35 and 45 mg

SUBMITTER: Alipoormazandarani N 

PROVIDER: S-EPMC9032271 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature