The preparation of amorphous aluminum oxide modified g-c3 n4 to improve photocatalytic performance in contaminant degradation applications

Abstract

For the first time, aluminum alloy was used as the main source to prepare aluminum oxide-modified carbon nitride with a melamine–cyanuric acid supramolecular complex. The introduction of amorphous aluminum oxide confers macroporosity to the skeletons of g-C3 N4-AlOx. Its surface area increased to 75.5 m2 g−1, about 1.5 times that of single g-C3 N4. After modification, the visible light response range was expanded, especially at 450~500 nm, while the band structure could be adjusted. Compared with g-C3 N4, g-C3 N4-AlOx has better photocatalytic performance, the adsorption rate for the dye rhodamine B (RhB) is about 2.1 times that of g-C3 N4, and the RhB removal rate is 1.2 times that of g-C3 N4.