Subsolidus phase relation in the Bi₂O₃–Fe₂O₃–La₂O₃ system

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 Bi_1-xLa_xO_1.5 with 0.167 ≤ x≤ 0.339) are obtained and eight compatibility triangles are determined.