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首页> 外文期刊>RSC Advances >Additive dependent synthesis of bismuth oxybromide composites for photocatalytic removal of the antibacterial agent ciprofloxacin and mechanism insight
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Additive dependent synthesis of bismuth oxybromide composites for photocatalytic removal of the antibacterial agent ciprofloxacin and mechanism insight

机译：氧溴化铋复合材料的加成依赖性合成用于光催化去除环丙沙星的抗菌作用及其机理研究

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摘要

Bismuth oxybromide composites were synthesized by solvothermal synthesis, applying triethanolamine (TEOA), sodium hydroxide (NaOH) and ammonium hydroxide (NH3 H2O) as the additives, which were denoted as S-TEOA, S-NaOH and S-NH3, respectively. The obtained samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), electron spin resonance spectrometry (ESR), Brunauer–Emmett–Teller (BET) measurement, and UV-Vis absorption spectrometry. The results showed that the samples consisted of the same phases containing BiOBr and Bi24O31Br10, and possess different structures, morphology and optical absorption properties depending on the additive. Their photoactivities were evaluated by degradation of ciprofloxacin (CIP) under visible light (λ ≥ 420 nm) irradiation. The apparent rate constant value of the sample S-TEOA is 2.62 and 4.17 times higher than that of the samples S-NaOH and S-NH3. The possible formation mechanism of the sample S-TEOA and adsorption mode of CIP species on the prepared samples are discussed on the basis of the experimental results.
机译：采用三乙醇胺（TEOA），氢氧化钠（NaOH）和氢氧化铵（NH 3 H 2 溶剂热合成法合成氢溴酸铋复合材料。 sub> O）作为添加剂，分别表示为S-TEOA，S-NaOH和S-NH 3 。获得的样品通过X射线衍射（XRD），扫描电子显微镜（SEM），X射线光电子能谱（XPS），电子自旋共振能谱（ESR），Brunauer-Emmett-Teller（BET）和紫外线进行表征-可见吸收光谱法。结果表明，样品由BiOBr和Bi 24 O 31 Br 组成的相同相组成。 10 ，并具有不同的结构，形态和光吸收特性，具体取决于添加剂。通过在可见光（λ≥420 nm）照射下环丙沙星（CIP）的降解来评估其光活性。 S-TEOA样品的表观速率常数值是S-NaOH和S-NH 3 样品的表观速率常数的2.62和4.17倍。在实验结果的基础上，探讨了样品S-TEOA的可能形成机理和CIP物质在制备样品上的吸附方式。

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