ABSTRACT The WO 3 ‐Al 2 O 3 composite was synthesized using an innovative wet chemical approach. This way involved fabricating Al 2 O 3 micro‐cubes from Al foil. Polyethylene glycol (PEG) acted as a soft template to control morphology. The incorporation of WO 3 nanospheres onto Al 2 O 3 cubes significantly boost up photo efficiency of the hybrid material that facilitate the removal of pollutants. WO 3 particles revealed jointly spherical and pseudospherical forms. Smaller particles showed a well‐defined spherical structure while larger agglomerates exhibited a pseudospherical shape. Al 2 O 3 cubes offered a plenty of active surface sites that enhanced the light absorption, dye adsorption and also created a homogeneous WO 3 sphere distribution on the composites. The subsequent well‐crystalline hybrid structure was beneficial to the efficient charge transfer and less recombination by increasing the reaction kinetic and quantum Efficiency. Moreover, materialization of Al–O–W interfacial linkages significantly improved charge carrier separation and transfer that lead to superior photocatalytic performance. This was inveterate by structural analyses that validated the presence of Al–O–W bonds. 10.0 wt.% WO 3 /Al 2 O 3 composite showed the highest activity with 89.0% and 65.0% removal of MB and MO, respectively under solar light. The influence of PEG and CTAB enabled optimal particle morphology to boost the catalyst's effectiveness.
Sajjad et al. (2026) studied this question.