Author:
Essih Salima,Pardo Laura,Cecilia Juan Antonio,dos Santos-Gómez Lucía,Colodrero Rosario M. P.,Pozo Manuel,Calero Gustavo,Franco Francisco
Abstract
AbstractIn this work, the effect of microwave-assisted acid treatments on the morphological and crystallochemical characteristics of chrysotile fibers is investigated. A low concentration of nitric acid (0.2 N) is used to remove Mg2+-species located in the octahedral sheet of its structure, thereby causing a crystallo-chemical change forming a skeleton of non-crystalline amorphous silica. This skeleton maintains an elongated morphology but characterized by rounded -not sharp-edges and porous surfaces whose physical resistance under stress is reduced when compared with the initial fibers of chrysotile, favoring a lower pathogenicity of the fibers. Thus, microwave-assisted acid treatment rise as a low-cost, fast and effective option in avoiding the dangerousness associated with asbestos waste management.
Funder
Cátedra Ciencias del Litoral Costa del Sol
University of Málaga
Universidad de Málaga
Publisher
Springer Science and Business Media LLC