XPS STUDIES OF A BORON PHOSPHATE SAMPLE: UNREACTED H₃BO₃ OR ITS DERIVATIVE ON THE SURFACE

Abstract

BPO₄ was characterized by XRD, IR, and XPS. It was found that XPS technique serves as a powerful tool for detecting the presence of small amount of residual H₃BO₃ or B₂O₃ in a BPO₄ sample. The XPS B1s spectrum of the BPO₄ sample was deconvoluted into two peaks; one with higher binding energy was assigned to H₃BO₃ or B₂O₃, and the other with lower binding energy was assigned to BPO₄.