Enhancing the sensing performance of WO2.72 toward n-butanol via loading CeO2 nanoparticles

The formation of heterojunctions between CeO 2 and WO 2.72 reduces the band gap. Sample WO 2.72 – x wt% CeO 2 shows hydrophobicity due to the effective shielding of the 4f 1 of Ce by the octet of electrons in the outer 5s 2 5p 6 layer.