Magnetic coffee residue biosorbent for selective extraction of zinc oxide nanoparticles in water samples

IF 1.3 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-05-12 DOI:10.4314/bcse.v37i4.5

Yasmin Abdurahman, Deribachew Bekana, A. Temesgen, N. Bussa, Minbale Aschale, E. Teju, M. Amde

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引用次数: 1

Abstract

ABSTRACT. Quantification of engineered nanomaterials in the environment has attracted researchers’ interest recently because of their increased release to the environment. In this study, a recyclable and easily accessible magnetized coffee residue (MCR) is proposed for magnetic solid-phase extraction (MSPE) of zinc oxide nanoparticles (ZnO-NPs) from water samples. The MCR was synthesized using a simple one-step chemical co-precipitation method from coffee residue and was characterized by state-of-the-art techniques. Various parameters affecting the MSPE efficiency of ZnO-NPs were optimized and 8.5 pH, 75 mg adsorbent, 120 min extraction time, 10 mL sample volume, 4 mL of 0.001 M HCl as an eluting solvent, and 30 min elution time were identified as the optimum conditions. Under these conditions, the method showed excellent linearity (R2 = 0.995) and good sensitivity (detection limit, 0.12 mg L-1, and quantification limit, 0.4 mg L-1). Intra and inter-day percent standard deviations were 1.4 and 2.2%, respectively, for the analysis of 6 mg L-1 ZnO-NPs. The practical applicability of the method for the extraction of ZnO-NPs in environmental samples was evaluated, and recovery values in the range of 93.0–98.2% were obtained, confirming its successful performance. Generally, the technique is easy, economical, and eco-friendly that can be considered for the extraction of metal oxide nanoparticles. KEY WORDS: Zinc oxide nanoparticles, Magnetic coffee residue, Magnetic solid-phase extraction, Flame atomic absorption spectroscopy, Environmental waters Bull. Chem. Soc. Ethiop. 2023, 37(4), 859-873. DOI: https://dx.doi.org/10.4314/bcse.v37i4.5

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磁性咖啡渣生物吸附剂选择性提取水中氧化锌纳米颗粒

摘要。工程纳米材料在环境中的量化最近吸引了研究人员的兴趣，因为它们向环境中的释放增加了。在本研究中，提出了一种可回收且易于获得的磁化咖啡渣（MCR），用于从水样中磁性固相提取氧化锌纳米颗粒（ZnO NP）。采用简单的一步化学共沉淀法从咖啡渣中合成了MCR，并用最先进的技术对其进行了表征。优化了影响ZnO NPs MSPE效率的各种参数，确定8.5 pH、75mg吸附剂、120min提取时间、10mL样品体积、4mL 0.001M HCl作为洗脱溶剂和30min洗脱时间为最佳条件。在这些条件下，该方法显示出良好的线性（R2=0.995）和良好的灵敏度（检测限为0.12 mg L-1，定量限为0.4 mg L-1）。对于6 mg L-1 ZnO NP的分析，日内和日间百分比标准偏差分别为1.4%和2.2%。评估了该方法在环境样品中提取ZnO纳米粒子的实际适用性，回收率在93.0-98.2%之间，证实了其成功性能。一般来说，该技术简单、经济、环保，可用于提取金属氧化物纳米颗粒。关键词：氧化锌纳米颗粒，磁性咖啡渣，磁性固相萃取，火焰原子吸收光谱，环境水公牛。化学。Soc.Ethiop。2023，37（4），859-873.DOI:https://dx.doi.org/10.4314/bcse.v37i4.5

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来源期刊

Bulletin of the Chemical Society of Ethiopia 化学-化学综合

CiteScore

2.20

自引率

8.30%

发文量

113

审稿时长

6-12 weeks

期刊介绍： The Bulletin of the Chemical Society of Ethiopia (BCSE) is a triannual publication of the Chemical Society of Ethiopia. The BCSE is an open access and peer reviewed journal. The BCSE invites contributions in any field of basic and applied chemistry.