Fabrication of AgPO/N-doped TiO nanotubes heterojunction photocatalysts for visible-light-driven photocatalysis.

As an environmentally friendly and energy-efficient technology, photocatalysis holds considerable potential for eliminating organic pollutants. In this study, novel visible-light-driven AgPO-decorated nitrogen-doped TiO nanotubes (AgPO/N-TNTs) photocatalysts with advanced properties of heterostructures were successfully synthesized and used to degrade methylene blue (MB) dye. The fabrication of AgPO/N-TNTs photocatalysts involved a two-step electrochemical anodization to obtain TiO nanotubes (TNTs) and the wet impregnation of the amorphous tubular structure in NH solution, followed by calcination in air to obtain crystallized nitrogen-doped TiO nanotubes (N-TNTs).