Subsolidus phase relation in the Bi ₂ O ₃ —Fe ₂ O ₃ —La ₂ O ₃ system

Abstract

Bismuth-containing semiconductor material is a hot topic in photocatalysts because of its effective absorption under the visible light. In this paper, we expect to explore a new bismuth-based photocatalyst by studying the subsolidus phase relations of the Bi2O3—Fe2O3—La2O3 system. The X-ray diffraction data shows that in this ternary system the ternary compound does not exist, while seven binary compounds (including one solid solution series Bi1−xLaxO1.5 with 0.167 ≤ x ≤ 0.339) are obtained and eight compatibility triangles are determined.