Open AccessDesigning Cor–Shell Materials Using Humic Acids
Author(s) -
Tatiana Skripkina,
Ekaterina Podgorbunskikh,
O. I. Lomovsky
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/733/1/012041
Subject(s) - lignocellulosic biomass , lignin , humic acid , sorbent , chemistry , biomass (ecology) , shell (structure) , chemical engineering , organic chemistry , materials science , adsorption , composite material , geology , fertilizer , oceanography , engineering
Due to the high content of complexing moieties, humic acids are promising compounds for designing heavy metal sorbents that can be used in natural environment objects. Experiments focused on designing sorbent particles containing a humic shell and a core (that is supposed to impart the desired performance characteristics to the particle) and applying humic acids onto various materials were conducted. It is demonstrated that the sorbent with a “lignocellulosic core–humic shell” structure can be produced mechanochemically. The efficiency of humic acid binding to lignocellulosic materials directly correlates with lignin content within lignocellulosic materials. A method for passing lignin from the surface of lignocellulosic biomass into the solution using humic acids is found. Unmodified highly lignified biomass is the optimal material for applying humic acids onto lignocellulosic materials.