One-Pot Construction of Porous WO 3 /G-C 3 N 4 Nanotubes of Photocatalyst for Fast and Boosted Photodegradation of Rhodamine B and Tetracycline

WO3/C3N4 porous nanotubes (WO3/CNNT) with direct Z-scheme heterojunction have been developed through an effortless one-pot calcination self-assembly strategy. The synthesized WO3/CNNT heterojunction structure is different from conventional bulk g-C3N4 according to field-emission scanning electron microscope (FE-SEM), transmission electron microscope (TEM), and X-ray photoelectron spectroscopy (XPS) spectra analysis, and has a better performance in photocatalytic degradation of pollutants. It is under a unique structure with an elevated interfacial area and high dispersion active sites, which can facilitate the degradation of some dye pollutants and antibiotics by heterojunctions, higher than that of bulk g-C3N4 and hollow g-C3N4 nanotubes. The photocatalytic experimental results indicated the optimum photocatalyst of the 2