“…As a new family of promising photocatalysts, Bi-based ternary compounds, such as BiOX (X¼Cl, Br, I) [9][10], Bi 2 MoO 6 [11,12], Bi 2 WO 6 [13][14][15], and BiVO 4 [16] have demonstrated remarkable photocatalytic activities owing to their uniquely layered structures with an internal static electric field perpendicular to each layer, which can effectively promote the separation of photogenerated electron-hole pairs, and thus exhibit a high photocatalytic performance [17]. Recently, Bi-based quaternary compounds have been investigated and show good photocatalytic ability under UV and visible light irradiation for the degradation of organic dyes solution, such as PbBiO 2 Br [18], CdBiO 2 Cl [19], Bi 4 NbO 8 Cl [20] and PbBiO 2 Cl [21].…”