Research on correlation between corrosion resistance and photocatalytic activity of molybdenum zinc oxide modified by carbon quantum dots pigments

Photoelectric effect is an important and magical phenomenon in physics, so connections between photoelectricity and corrosion inhibition exist objectively. Probing the relationship between photoelectric properties and corrosion resistance is of significance but challenging. The in situ bonding modification of zinc molybdenum oxide (ZM) by carbon quantum dots (CDs) has obtained an interesting and promising result. First, the synergistic effect of protective layer shielding and photoelectron suppression effect greatly improved the corrosion resistance of CDs modified ZM (CDs@ZM) pigments. Then a positive correlation between corrosion resistance and photocatalysis of CDs@ZM pigments was first proposed. Meanwhile, based on the positive correlation between photocatalysis and corrosion resistance of pigments, a rapid method for detecting the corrosion resistance of ZM was presented. Consequently, the measurement time of corrosion inhibition was shortened.