One pot synthesis of Fe3O4-chili carbon composite removing methylene blue, paracetamol and nickel ions from an aqueous solution

Q1 Environmental Science Case Studies in Chemical and Environmental Engineering Pub Date : 2024-06-17 DOI:10.1016/j.cscee.2024.100800

Nkululeko Excellent Nkosi, Patience Mapule Thabede, Ntaote David Shooto

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Abstract

The presence of harmful chemicals in water is a major problem in many regions worldwide. This study aimed to develop a nanocomposite of carbonised-chili and nanoparticles to remove nickel ions (Ni(II)), methylene blue (MB) and paracetamol (PARA) from water. The material was characterised by TEM, FTIR, XRD and TGA. The uptake for PARA and MB was endothermic with capacities of 39.98 and 44.31 mg/g at pH value 7, while that of Ni(II) was exothermic at 56.06 mg/g at pH value 5. The data were described by the Freundlich and PSO models. The reusability was tested up to four cycles. In conclusion, a low-cost nanocomposite adsorbent developed from chili carbon/Fe₃O₄ exhibited excellent adsorption capacity for various pollutants, indicating the versatility and potential of the material for water treatment.

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从水溶液中去除亚甲基蓝、扑热息痛和镍离子的 Fe3O4-辣椒炭复合材料的一次性合成

在全球许多地区，水中存在有害化学物质是一个主要问题。本研究旨在开发一种碳化辣椒和纳米颗粒的纳米复合材料，用于去除水中的镍离子（Ni(II)）、亚甲基蓝（MB）和扑热息痛（PARA）。该材料通过 TEM、FTIR、XRD 和 TGA 进行了表征。在 pH 值为 7 时，PARA 和 MB 的吸收能力分别为 39.98 毫克/克和 44.31 毫克/克，为内热吸收；而在 pH 值为 5 时，Ni(II) 的吸收能力为 56.06 毫克/克，为放热吸收。数据由 Freundlich 和 PSO 模型描述。可重复使用性测试达四个周期。总之，用辣椒炭/Fe3O4 开发的低成本纳米复合吸附剂对各种污染物具有出色的吸附能力，这表明该材料在水处理方面具有多功能性和潜力。

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