Open AccessNew photocatalytic nano additives based on titanium dioxide and silica for self-cleaning concrete.
Author(s) -
K. A. Pozhivina
Publication year - 2020
Publication title -
trudy kolʹskogo naučnogo centra ran
Language(s) - English
Resource type - Journals
ISSN - 2307-5252
DOI - 10.37614/2307-5252.2020.3.4.032
Subject(s) - photocatalysis , titanium dioxide , materials science , methylene blue , nano , decomposition , pulmonary surfactant , chemical engineering , nonionic surfactant , titanium , composite material , metallurgy , chemistry , catalysis , organic chemistry , engineering
In this article powdered composites of titanium dioxide and silica with high-developed surface(183–534 m2 / g), synthesized from industrial wastes, are considered as photocatalytic concrete additives. Their composition was studied, and the photocatalytic performance was evaluated by decomposition of the dye “Methylene blue” under UV-irradiation. The surfactant’s concentration at which the photocatalytic activity reaches its highest values was determined.