构建用于近红外驱动光催化的新型 I-BiOBr/CQD 复合材料

IF 1.4 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Chemistry Letters Pub Date : 2024-08-16 DOI:10.1093/chemle/upae151

Maozhou Fan

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引用次数: 0

摘要

本研究采用简单的化学沉淀法，在常温下合成了碘掺杂氧溴化铋（I-BiOBr）/碳量子点的新型复合材料。通过引入 I 离子，氧溴化铋（BiOBr）的带隙能可从 2.78 eV 降至 2.28 eV，使其与碳量子点的上转换发射光谱相一致。因此，在可见光照射 120 分钟后，I-BiOBr/碳量子点对甲基橙的光降解效率达到 95%，是 BiOBr 的 4.2 倍。

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Constructing a novel I-BiOBr/CQD composite for near-infrared–driven photocatalysis

In this study, a novel composite of Iodine-doped bismuth oxybromide (I-BiOBr)/carbon quantum dots was synthesized using a simple chemical precipitation method at ambient temperature. The bandgap energy of bismuth oxybromide (BiOBr) can be reduced from 2.78 to 2.28 eV by introducing I-ions, aligning it with the upconverted emission spectrum of carbon quantum dots. Consequently, the photodegradation efficiency of I-BiOBr/carbon quantum dots reached a 95% degradation rate for methyl orange after 120 min of visible light irradiation, which is 4.2 times than that of BiOBr.

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来源期刊

Chemistry Letters 化学-化学综合

CiteScore

3.00

自引率

6.20%

发文量

260

审稿时长

1.2 months

期刊介绍： Chemistry Letters covers the following topics: -Organic Chemistry- Physical Chemistry- Inorganic Chemistry- Analytical Chemistry- Materials Chemistry- Polymer Chemistry- Supramolecular Chemistry- Organometallic Chemistry- Coordination Chemistry- Biomolecular Chemistry- Natural Products and Medicinal Chemistry- Electrochemistry