Abstract Bismuth oxybromide samples were synthesized using solvothermal crystallization and different additives (CTAB-cetyltrimethylammonium bromide, PVP–polyvinylpyrrolidone, SDS–sodium dodecyl sulfate, U–urea and TU–thiourea). The effect of the mentioned compounds was investigated through structural (crystallite size, crystal phase composition, etc.), morphological (crystal shape), optical (band gap energy) parameters, surface properties (surface oxidation states), and the resulting photocatalytic activity. It was found that the ratio of the (1 0 2)/(1 1 0) crystallographic planes, the presence of oxidized Bi4+ and Bi5+ species were responsible for the obtained photocatalytic activity. Moreover, a strong dependency was revealed between the surface tension of the shape tailoring agents and the overall morpho-structural parameters, pointing out the fact that the properties of the semiconductor can be more easily tuned using the surface tension modification as a tool.

中文翻译：

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不同形状控制剂存在下溴氧化铋 (BiOBr) 的水热结晶

摘要 使用溶剂热结晶和不同的添加剂（CTAB-十六烷基三甲基溴化铵、PVP-聚乙烯吡咯烷酮、SDS-十二烷基硫酸钠、U-尿素和TU-硫脲）合成了溴氧化铋样品。通过结构（微晶尺寸、晶相组成等）、形态（晶体形状）、光学（带隙能量）参数、表面性质（表面氧化态）和由此产生的光催化活性研究了上述化合物的影响。发现 (1 0 2)/(1 1 0) 晶面的比率、氧化的 Bi4+ 和 Bi5+ 物种的存在是获得光催化活性的原因。此外，形状调整剂的表面张力与整体形态结构参数之间存在很强的依赖性，