利用介孔磁性孔雀石纳米复合材料对饮用水进行高效除氟处理

IF 5.3 Q2 ENGINEERING, ENVIRONMENTAL Cleaner Engineering and Technology Pub Date : 2024-10-24 DOI:10.1016/j.clet.2024.100826
Amna Sarwar , Jin Wang , Nadia Riaz , Muhammad Saqib Khan , Ajmal Khan , Rafaqat Ali Khan , Afnan Jan , Anar Gojayev , Ahmed Al-Harrasi , Qaisar Mahmood
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引用次数: 0

摘要

该研究评估了磁性介孔孔雀石纳米粒子(NPs)消除饮用水中氟化物(F-)的功效。研究人员进行了筛选实验,以测定合成材料在不同的 Fe3O4 负载条件下对氟的吸附能力。在所研究的各种纳米材料中,0.25-Fe-M 表现出最佳性能,显示出一致的 Fe3O4 分布,晶体大小为 16.66 nm,形态不规则,具有磁性,表面积为 13.595 m2/g,孔径为 1.6574 nm。确定的优化反应条件为接触时间为 10 分钟,NC 剂量为 0.5 mg/mL,F- 浓度为 10 mg/L。Fe3O4 NPs 的最大吸附容量为 6.57 mg/g,孔雀石 NPs 的最大吸附容量为 7.87 mg/g。值得注意的是,0.25 Fe-M-NCs 达到了去除 F- 的最佳吸附容量,为 8.44 mg/g,与其他 NCs 相比表现出更优越的性能。表面积、孔隙率和吸附之间的相互作用错综复杂,取决于吸附剂和吸附物的独特性质,吸附过程受特定相互作用的支配。此外,这项研究还揭示了在工作 pH 值下的加速吸附、较短的接触时间和较高的吸附容量。
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Efficient defluoridation of drinking water using mesoporous magnetic malachite nanocomposites
The study evaluated the efficacy of magnetic mesoporous Malachite nanoparticles (NPs) in eliminating fluoride (F) from drinking water. Screening experiments were conducted to gauge the F adsorption capabilities of the synthesized material under different Fe3O4 loading conditions. Among the various nanomaterials examined, 0.25-Fe-M demonstrated optimal performance, exhibiting consistent Fe3O4 distribution with a crystal size of 16.66 nm with revealed irregular morphology exhibiting magnetic properties, a surface area of 13.595 m2/g and a pore size of 1.6574 nm. The optimized reaction conditions determined were: 10 min of contact time, a NC dose of 0.5 mg/mL, and an F concentration of 10 mg/L. The maximum adsorption capacities recorded were 6.57 mg/g for Fe3O4 NPs and 7.87 mg/g for malachite NPs. Notably, the optimal adsorption capacity for F removal was achieved with 0.25 Fe-M-NCs, reaching 8.44 mg/g, demonstrating superior performance compared to other NCs. The interplay between surface area, pore volume, and adsorption is intricate and contingent upon the unique properties of the adsorbent and adsorbate, with specific interactions governing the adsorption process. Furthermore, this study unveiled accelerated adsorption with shorter contact time and high adsorption capacity at the working pH.
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来源期刊
Cleaner Engineering and Technology
Cleaner Engineering and Technology Engineering-Engineering (miscellaneous)
CiteScore
9.80
自引率
0.00%
发文量
218
审稿时长
21 weeks
期刊最新文献
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