Abstract

In this work, the effect of the methods of synthesis on the phase composition and photocatalytic properties of composites formed in the section of (SrO)_0.2(Bi₂O₃)_0.8–BiFeO₃ is studied on the examples of the decomposition reactions of methylene orange (MO). The studied compositions have the MO degradation degree ranging from 30 to 62% (C₀ = 20 mg/L, catalyst loading of 30 mmol/L) under irradiation for 3 h with a fluorescent mercury lamp. The band gap estimated by the Kubelka–Munk function is lower than 2.6 eV for the studied compositions. This indicates the possibility of their application as photocatalysts of the visible range.

中文翻译：

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不同方法获得的基于SrO-Bi 2 O 3 -Fe 2 O 3的复合材料的光催化性能

摘要

在这项工作中，以亚甲基的分解反应为例，研究了合成方法对在（SrO）_0.2（Bi ₂ O ₃）_0.8 -BiFeO ₃截面中形成的复合物的相组成和光催化性能的影响。橙色（MO）。所研究的组合物在用荧光汞灯照射3小时的条件下，其MO降解度为30-62％（C ₀＝ 20mg / L，催化剂负载量为30mmol / L）。对于所研究的成分，由Kubelka-Munk函数估计的带隙低于2.6 eV。这表明它们有可能用作可见光范围的光催化剂。