Synthesis of rGO/CuBi2O4 nanocomposite as an effective photocatalyst in the reduction of nitroaromatic compounds to corresponding amines under visible light

IF 2.8 4区 生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Journal of chemical technology and biotechnology Pub Date : 2024-08-29 DOI:10.1002/jctb.7735
Elham Hosseinian, Ali Oji Moghanlou, Farshid Salimi Nanekaran, Behnam Khanizadeh, Nayer Mohammadian Tarighi
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Abstract

BACKGROUND

Chemical pollutants, such as nitroaromatic compounds, have been a significant challenge in recent decades of human societies as they contribute to environmental pollution and pose serious health risks due to their high toxicity. One promising and green method to address this issue is the photocatalytic reduction of nitroaromatic compounds to their corresponding amino aromatic compounds. In this study, an rGO/CuBi2O4 nanocomposite was synthesized using the hydrothermal method, involving the simultaneous reduction of graphene oxide and the coupling of CuBi2O4 nanoparticles in its layers. The resulting heterogeneous structure was characterized using various techniques including FTIR, Raman, XPS, XRD, FESEM, TEM, EDAX, UV–Vis DRS, BET, PL spectroscopy, and EIS. Subsequently, the photocatalytic efficiency of the nanocomposite in reducing nitroaromatic compounds to the corresponding aromatic amines under visible light was evaluated.

RESULTS

The results indicated that graphene oxide was effectively reduced and coupled with CuBi2O4 nanoparticles in the reduced graphene oxide sheets. The rGO/CuBi2O4 heterogeneous nanocomposite successfully reduced nitroaromatic compounds to the corresponding aromatic amines under visible light. Hydrazine monohydrate was used to supply the necessary hydrogen for the reaction.

CONCLUSION

This study confirmed the high photocatalytic activity of the rGO/CuBi2O4 heterogeneous nanocomposite. Our nanocomposite was more effective than others, reported in similar studies, at reducing nitroaromatic compounds to the corresponding amino aromatic compounds. Additionally, it demonstrated high recycling and reuse properties, as there was no significant change in reaction conversion percentage and nanocomposite amount after 16 reuses. © 2024 Society of Chemical Industry (SCI).

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合成 rGO/CuBi2O4 纳米复合材料,作为一种有效的光催化剂,在可见光下将硝基芳香族化合物还原为相应的胺类化合物
背景近几十年来,硝基芳香族化合物等化学污染物一直是人类社会面临的重大挑战,因为它们不仅造成环境污染,还因其高毒性而对健康构成严重威胁。光催化将硝基芳香族化合物还原为相应的氨基芳香族化合物是解决这一问题的一种前景广阔的绿色方法。本研究采用水热法合成了 rGO/CuBi2O4 纳米复合材料,包括同时还原氧化石墨烯和在其层中耦合 CuBi2O4 纳米粒子。利用傅立叶变换红外光谱、拉曼光谱、XPS、XRD、FESEM、TEM、EDAX、UV-Vis DRS、BET、PL 光谱和 EIS 等多种技术对所得到的异质结构进行了表征。结果表明,氧化石墨烯被有效还原,并与还原氧化石墨烯片中的 CuBi2O4 纳米颗粒耦合。rGO/CuBi2O4 异质纳米复合材料在可见光下成功地将硝基芳香族化合物还原成相应的芳香胺。本研究证实了 rGO/CuBi2O4 异质纳米复合材料具有很高的光催化活性。与其他类似研究相比,我们的纳米复合材料在将硝基芳香族化合物还原为相应的氨基芳香族化合物方面更为有效。此外,它还具有很高的回收和再利用性能,因为经过 16 次再利用后,反应转化率和纳米复合材料的用量没有发生显著变化。© 2024 化学工业协会(SCI)。
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来源期刊
CiteScore
7.00
自引率
5.90%
发文量
268
审稿时长
1.7 months
期刊介绍: Journal of Chemical Technology and Biotechnology(JCTB) is an international, inter-disciplinary peer-reviewed journal concerned with the application of scientific discoveries and advancements in chemical and biological technology that aim towards economically and environmentally sustainable industrial processes.
期刊最新文献
Issue Information In Focus: Materials and the Environment Symposium (XXXI IMRC México) Issue Information Adsorption behavior of graphite‐like walnut shell biochar modified with ammonia for ciprofloxacin in aqueous solution Eco‐friendly approaches for synthesis of indolyl 1H‐pyrroles using rice‐husk‐derived carbonaceous sulfonation as the green catalyst
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