MgAl层状双氧化物有效去除水中磷酸盐：表征、性能和机理

IF 2.4 4区生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Journal of chemical technology and biotechnology Pub Date : 2025-07-07 DOI:10.1002/jctb.70014

Bo Yu, Xiaoling Wan, Jiao Zhang, Juan Pei, Mingxing Guo, Siwei Xiang

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引用次数: 0

摘要

背景：水体中的磷酸盐污染对人类健康和水生生态系统都构成重大威胁。在本研究中，通过煅烧MgAl层状双氢氧化物合成了MgAl层状双氧化物（MgAl- ldo），以有效去除水中的磷酸盐。结果MgAl-LDO对磷酸盐的吸附率为97%，即使经过4次再生循环，吸附效率仍保持在60%以上。采用傅里叶变换红外光谱、x射线衍射、扫描电镜和自动比表面积等方法对MgAl-LDO的性质进行了全面分析。结合吸附动力学和等温线研究了MgAl-LDO的吸附机理，确定其为离子交换吸附。结论MgAl-LDO的主要吸附机制是离子交换过程。本论文在MgAl-LDO处理磷酸盐方面具有潜在的应用价值。©2025化学工业学会（SCI）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Efficient phosphate removal from water using MgAl layered double oxide: characterization, performance, and mechanism

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Efficient phosphate removal from water using MgAl layered double oxide: characterization, performance, and mechanism

BACKGROUND

Phosphate contamination in water bodies poses a significant threat to both human health and aquatic ecosystems. In this study, an MgAl layered double oxide (MgAl-LDO) was synthesized via calcination of MgAl layered double hydroxide for efficient phosphate removal from water.

RESULTS

MgAl-LDO exhibited an exceptional adsorption rate of 97% for phosphate and maintained an adsorption efficiency above 60% even after undergoing four regeneration cycles. The properties of MgAl-LDO were thoroughly analyzed by Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, and automated specific surface area. The adsorption mechanism of MgAl-LDO was investigated in conjunction with adsorption kinetics and isotherms, and was determined to be ion exchange.

CONCLUSION

The results indicated that the primary adsorption mechanism of MgAl-LDO involves an ion-exchange process. This thesis provides potential value in the treatment of phosphate treatment with MgAl-LDO. © 2025 Society of Chemical Industry (SCI).

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来源期刊

Journal of chemical technology and biotechnology 工程技术-工程：化工

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.