Green Magnetic Nanoparticles CoFe2O4@Nb5O2 Applied in Paracetamol Removal

IF 2.6 4区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Magnetochemistry Pub Date : 2023-08-05 DOI:10.3390/magnetochemistry9080200

J. P. Oliveira, Laura S. Ribas, Jose S. Napoli, E. Abreu, J. L. Diaz de Tuesta, H. Gomes, Â. Tusset, G. Lenzi

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引用次数: 1

Abstract

This study describes the synthesis of an innovative nanomaterial (patent application number BR 1020210000317) composed of cobalt ferrite functionalized in niobium pentoxide CoFe2O4@Nb5O2 (CFNb), synthesized via green synthesis using tangerine peel extract. The material emphasizes the combination of a magnetic material (which allows for easy recovery after application) with niobium pentoxide (a metal which is abundant in Brazil). CFNb was applied as a catalyst for the paracetamol (PCT) degradation by photocatalysis. The new materials were characterized through surface and pore analysis (SBET, SEXT, Smic, Vmic, and VTOTAL), photoacoustic spectroscopy (PAS), zero charge point (pHPZC, scanning electron microscopy (SEM/EDS), and X-ray diffraction (XRD). The reaction parameters studied included pH and catalyst concentration. The results indicated that the CFNb nanocatalysts were efficient in the paracetamol degradation, presenting better results in conditions of low pH (close to 2) and low catalyst concentration under irradiation of the 250 W mercury vapor lamp (greater than 28 mW·cm−2) at 60 min of reaction.

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绿色磁性纳米粒子CoFe2O4@Nb5O2应用于对乙酰氨基酚的去除

本研究描述了由五氧化二铌功能化的钴铁氧体组成的创新纳米材料（专利申请号BR 1020210000317）的合成CoFe2O4@Nb5O2（CFNb），其通过使用陈皮提取物的绿色合成而合成。该材料强调磁性材料（使用后易于回收）与五氧化二铌（一种在巴西丰富的金属）的结合。CFNb被用作通过光催化降解对乙酰氨基酚（PCT）的催化剂。通过表面和孔隙分析（SBET、SEXT、Smic、Vmic和VTOTAL）、光声光谱（PAS）、零电荷点（pHPZC）、扫描电子显微镜（SEM/EDS）和X射线衍射（XRD）对新材料进行了表征。研究的反应参数包括pH和催化剂浓度。结果表明，CFNb纳米催化剂在对乙酰氨基酚的降解中是有效的，在低pH（接近2）和低催化剂浓度的条件下，在250W汞蒸气灯（大于28mW·cm−2）的照射下，反应60min时表现出更好的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Magnetochemistry Chemistry-Chemistry (miscellaneous)

CiteScore

3.90

自引率

11.10%

发文量

145

审稿时长

11 weeks

期刊介绍： Magnetochemistry (ISSN 2312-7481) is a unique international, scientific open access journal on molecular magnetism, the relationship between chemical structure and magnetism and magnetic materials. Magnetochemistry publishes research articles, short communications and reviews. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.