Magnetic CoFe2O4 nanoparticles supported on graphene oxide (CoFe2O4/GO) with high catalytic activity for peroxymonosulfate activation and degradation of rhodamine B

Tabit Rida; Amadine Othmane; Essamlali Younes; Danoun Karim; Rhihil Abdallah; Zahouily Mohamed

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Magnetic CoFe2O4 nanoparticles supported on graphene oxide (CoFe2O4/GO) with high catalytic activity for peroxymonosulfate activation and degradation of rhodamine B

机译：磁性COFE2O4纳米颗粒，其具有高催化活性的石墨烯氧化物（COFE2O4 / GO），用于过氧键硫酸盐活化和罗丹明的降解B.

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Herein, we report the preparation of magnetic CoFe2O4 nanoparticles and CoFe2O4/graphene oxide (GO) hybrids and evaluate their catalytic activity as heterogeneous peroxymonosulfate (PMS) activators for the decomposition of rhodamine B. The surface morphologies and structures of both CoFe2O4 nanoparticles and CoFe2O4/GO hybrids were investigated by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR) and nitrogen adsorption-desorption isotherms. The magnetic properties of the samples were assessed using a SQUID magnetometer at 298 K. Catalytic oxidation experiments demonstrated that CoFe2O4/GO hybrids exhibited much better catalytic activity than CoFe2O4 nanoparticles or CoFe2O4/reduced graphene oxide (rGO) hybrids, suggesting that GO plays an important role in CoFe2O4/GO hybrids in the decomposition of rhodamine B. The influence of various reaction conditions such as temperature, concentration of PMS, pH and decomposition time of rhodamine B over the CoFe2O4/GO catalyst were investigated and optimized. The rhodamine B degradation process was found to fit a pseudo-first order kinetics model. The catalyst could be easily separated from the reaction mixture by applying an external magnet. In particular, the as-prepared CoFe2O4/GO hybrid exhibited good reusability and stability in successive degradation experiments in PMS solution.

机译：在此，我们报告磁性COFE2O4纳米颗粒和COFE 2 O 4 /石墨烯氧化物（GO）杂种的制备，并评估其作为非均相过氧键硫酸盐（PMS）活化剂的催化活性，用于罗丹明B的分解。COFE2O4纳米粒子和COFE2O4的表面形态和结构。通过粉末X射线衍射（XRD），扫描电子显微镜（SEM），能量 - 色散X射线光谱（EDS），傅里叶变换红外光谱（FTIR）和氮吸附 - 解吸等温线进行去杂种。使用鱿鱼磁力计在298k中评估样品的磁性。催化氧化实验证明，CoFe2O4 / Go杂种比Cofe2O4纳米颗粒或Cofe2O4 /氧化石墨烯（Rgo）杂种的表现出更好的催化活性，这表明这一点起到了重要性在CoFe2O4 /去杂交中的作用在罗丹明B的分解中。研究并优化各种反应条件如温度，PMS，pH，pH的分解时间，PM，pH和分解时间的影响。发现罗丹明B降解过程适合伪第一阶动力学模型。催化剂可以通过施加外部磁铁容易地与反应混合物分离。特别地，AS制备的COFE2O4 / GO杂种在PMS溶液中的连续降解实验中表现出良好的可重用性和稳定性。

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来源
《RSC Advances》 |2018年第3期|共10页
作者
Tabit Rida; Amadine Othmane; Essamlali Younes; Danoun Karim; Rhihil Abdallah; Zahouily Mohamed;
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Univ Hassan 2 Fac Sci &

Tech URAC 24 Lab Mat Catalyse &

Valorisat Ressources Nat Casablanca BP 146 Casablanca Morocco;

MAScIR Fdn VARENA Ctr Rabat Design Rue Mohamed El Jazouli Rabat 10100 Morocco;

MAScIR Fdn VARENA Ctr Rabat Design Rue Mohamed El Jazouli Rabat 10100 Morocco;

MAScIR Fdn VARENA Ctr Rabat Design Rue Mohamed El Jazouli Rabat 10100 Morocco;

Univ Hassan 2 Fac Sci &

Tech URAC 24 Lab Mat Catalyse &

Valorisat Ressources Nat Casablanca BP 146 Casablanca Morocco;

Univ Hassan 2 Fac Sci &

Tech URAC 24 Lab Mat Catalyse &

Valorisat Ressources Nat Casablanca BP 146 Casablanca Morocco;

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正文语种 eng
中图分类化学;
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1. Magnetic CoFe2O4 nanoparticles supported on graphene oxide (CoFe2O4/GO) with high catalytic activity for peroxymonosulfate activation and degradation of rhodamine B [J] . Tabit Rida, Amadine Othmane, Essamlali Younes, RSC Advances . 2018,第3期

机译：磁性COFE2O4纳米颗粒，其具有高催化活性的石墨烯氧化物（COFE2O4 / GO），用于过氧键硫酸盐活化和罗丹明的降解B.
2. Magnetic EDTA functionalized CoFe2O4 nanoparticles (EDTA-CoFe2O4) as a novel catalyst for peroxymonosulfate activation and degradation of Orange G [J] . Deng Lin, Shi Zhou, Zou Zhiyan, Environmental Science and Pollution Research . 2017,第12期

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3. Enhanced catalytic oxidation of benzotriazole via peroxymonosulfate activated by CoFe2O4 supported onto nitrogen-doped three-dimensional graphene aerogels [J] . Li Xinran, Zhang Danning, Liu Zhehua, Chemical engineering journal . 2020,第1期

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4. Preparation of Light-Driven Spinel Nanoparticles CoAl2O4, MgFe2O4 and CoFe2O4 and Their Photocatalytic Reduction of Carbon Dioxide [C] . Limei Xue, Fenghua Zhang, Bin Chen, 2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring . 2011

机译：光驱动尖晶石纳米粒子CoAl2O4，MgFe2O4和CoFe2O4的制备及其对二氧化碳的光催化还原
5. Magneto-Electric Nanoparticles Cobalt Ferrite (CoFe2O4)-Barium Titanate (BaTiO3) for Non-Invasive Neural Modulations [D] . Nguyen, Tyler. 2020

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6. Corrigendum to Heterogeneous sono-Fenton-like process using magnetic cobalt ferrite-reduced graphene oxide (CoFe2O4-rGO) nanocomposite for the removal of organic dyes from aqueous solution Ultrason. Sonochem. 40 (2018) 841–852 [O] . Aydin Hassani, Gülşah Çelikdağ, Paria Eghbali, 2021

机译：使用磁性钴铁氧体 - 氧化石墨烯（CoFe2O4-Rgo）纳米复合材料异质超源性石英氧化物（CoFe2O4-Rgo）纳米复合材料从水溶液中除去有机染料超声。 Sonochem。 40（2018）841-852
7. Magnetic CoFe2O4 nanoparticles supported on graphene oxide (CoFe2O4/GO) with high catalytic activity for peroxymonosulfate activation and degradation of rhodamine B [O] . Rida Tabit, Othmane Amadine, Younes Essamlali, 2018

机译：磁性COFE2O4纳米颗粒，其具有高催化活性的石墨烯氧化物（COFE2O4 / GO），用于过氧键硫酸盐活化和罗丹明的降解B.

Magnetic CoFe2O4 nanoparticles supported on graphene oxide (CoFe2O4/GO) with high catalytic activity for peroxymonosulfate activation and degradation of rhodamine B

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