Zinc vanadium oxide (ZVO) with a
special alternated structure is
a significant photoelectric material, so exploring atomic regulation
and light processing technology to improve its electrical properties
is an interesting scientific issue of potential value. Herein, a Zn3(VO4)2 crystal with a self-assembled
3D micro–nano-spherical structure was synthesized through accurately
controlling the conditions of hydrothermal reaction and calcination,
which increased the corrosion resistance by 429.8% compared with pure
epoxy resin. After that, hydroxyl groups were successfully constructed
on the crystal surface by light modification to further improve the
visualized anticorrosion effect (increased by 743.5%). All of these
were due to the realization of the interlayer structure, defect construction,
and chloride-ion replacement under the structure-oriented effect,
as well as zinc–vanadium bimetal protection. Consequently,
the heat treatment, light modification, and electrochemical performance
we reported in this paper, and the practicability in the iron-anticorrosion
industry, were creatively reflected in the ZVO crystals.