Ferrite-based catalysts for peroxymonosulfate activation: comparative study of RB KN-R degradation

IF 1.9 4区材料科学 Q3 CHEMISTRY, PHYSICAL

Surface Innovations Pub Date : 2025-04-09 DOI:10.1680/jsuin.24.00112

Md. Ibrahim Khalil, Camara Sidiki, Md Somir Hossain, Zixian Zhou, Qian Zhang, Xiaoze Liu, Xinxin Zhang, Xinyue Wang, Hongchao Ma

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引用次数: 2

Abstract

Ferrite-based catalysts are promising for enhancing peroxymonosulfate (PMS) activation to degrade refractory organic pollutants such as synthetic dyes. This study evaluated the catalytic performance of CuFe 2 O 4 , CoFe 2 O 4 , ZnFe 2 O 4 , MnFe 2 O 4 , and NiFe 2 O 4 for reactive brilliant blue KN-R degradation. The novelty of this work lies in CuFe 2 O 4 ’s use as a superior PMS activator, leveraging Cu 2+ /Cu + and Fe³ + /Fe 2+ redox cycling to enhance SO 4 • − generation, offering superior efficiency, cost-effectiveness, and catalyst recovery. CuFe 2 O 4 demonstrated the highest degradation efficiency (99.10%) within 5 min under optimized conditions (catalyst dosage: 50 mg/L, PMS: 400 mg/L, dye: 120 mg/L, pH: 6.4, and temperature: 25°C), supported by the highest rate constant (k = 0.9512 min −1 ). Comparative results showed CoFe 2 O 4 , MnFe 2 O 4 , ZnFe 2 O 4 , and NiFe 2 O 4 achieving lower efficiencies of 82.00%, 67.31%, 43.80%, and 16.57%, respectively. Characterization (X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy) confirmed the structural and surface properties driving CuFe 2 O 4 ’s performance, including its stability and reusability, maintaining over 90% activity after five cycles. This study establishes CuFe 2 O 4 as a highly efficient, scalable, and sustainable catalyst for PMS activation, offering a promising solution for wastewater treatment and environmental remediation.

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铁酸盐基过氧单硫酸盐活化催化剂：RB KN-R降解的比较研究

铁氧体基催化剂在提高过氧单硫酸盐（PMS）的活性以降解难降解的有机污染物（如合成染料）方面具有广阔的应用前景。研究了cufe2o4、cofe2o4、znfe2o4、mnfe2o4和NiFe 2o4对活性艳蓝KN-R降解的催化性能。这项工作的新颖之处在于，cufe2o4作为一种优良的PMS活化剂，利用cu2 + /Cu +和Fe³+ / fe2 +氧化还原循环来增强so4•−的生成，提供了卓越的效率、成本效益和催化剂回收率。在催化剂用量为50 mg/L， PMS用量为400 mg/L，染料用量为120 mg/L， pH为6.4，温度为25℃的条件下，cufe2o4在5 min内的降解效率最高（99.10%），速率常数为k = 0.9512 min−1。对比结果表明，cofe2o4、mnfe2o4、znfe2o4和nfe2o4的效率分别为82.00%、67.31%、43.80%和16.57%。表征（x射线衍射、扫描电镜、x射线光电子能谱和傅里叶变换红外光谱）证实了驱动cufe2o4性能的结构和表面特性，包括其稳定性和可重复使用性，在5次循环后保持90%以上的活性。本研究证实了cufe2o4是一种高效、可扩展、可持续的PMS活化催化剂，为废水处理和环境修复提供了一种有前景的解决方案。

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来源期刊

Surface Innovations CHEMISTRY, PHYSICALMATERIALS SCIENCE, COAT-MATERIALS SCIENCE, COATINGS & FILMS

CiteScore

5.80

自引率

22.90%

发文量

期刊介绍： The material innovations on surfaces, combined with understanding and manipulation of physics and chemistry of functional surfaces and coatings, have exploded in the past decade at an incredibly rapid pace. Superhydrophobicity, superhydrophlicity, self-cleaning, self-healing, anti-fouling, anti-bacterial, etc., have become important fundamental topics of surface science research community driven by curiosity of physics, chemistry, and biology of interaction phenomenon at surfaces and their enormous potential in practical applications. Materials having controlled-functionality surfaces and coatings are important to the manufacturing of new products for environmental control, liquid manipulation, nanotechnological advances, biomedical engineering, pharmacy, biotechnology, and many others, and are part of the most promising technological innovations of the twenty-first century.