Abstract

Recently metal nanoparticles have become increasingly attractive adsorbents for the isolation of various compounds. In this regard, this investigation aims to evaluate the removal performance of copper oxide (CuO) nanoparticles as a novel adsorbent for tartaric acid from aqueous solution. For this aim, this study presents the preparation, characterization, and adsorption properties of CuO nanoparticles for the isolation of tartaric acid. CuO nanoparticles were synthesized by utilizing a simple procedure and characterized by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and Brunauer–Emmett–Teller (BET) surface area. Afterwards, the removal properties of CuO nanoparticles were assessed under various adsorption conditions. CuO nanoparticles exhibited the highest removal performance with a higher adsorption capacity value of 619.23 ± 2.08 mg g⁻¹. The Freundlich isotherm model was achieved to be the most accurate model with an R² value of 0.9533. Moreover, the pseudo-second order model was the most favorable to the kinetic measurements with an R² value of 0.9967. The results obtained in this study indicate that CuO nanoparticles have good removal properties for tartaric acid and may be employed as an efficient novel adsorbent for its isolation from the aqueous solution and wastewater.

摘要

最近，金属纳米颗粒已成为用于分离各种化合物的越来越有吸引力的吸附剂。在这方面，本研究旨在评估氧化铜 (CuO) 纳米颗粒作为一种新型的酒石酸吸附剂从水溶液中去除的性能。为此，本研究介绍了用于分离酒石酸的 CuO 纳米颗粒的制备、表征和吸附性能。CuO 纳米颗粒通过使用简单的程序合成，并通过傅里叶变换红外 (FTIR) 光谱、扫描电子显微镜 (SEM) 和布鲁诺-埃米特-特勒 (BET) 表面积表征。然后，在各种吸附条件下评估了 CuO 纳米颗粒的去除性能。^-1。Freundlich 等温线模型是最准确的模型，其R ²值为 0.9533。此外，伪二级模型最有利于动力学测量，R ²值为0.9967。本研究中获得的结果表明，CuO 纳米颗粒对酒石酸具有良好的去除性能，可作为一种有效的新型吸附剂，将其从水溶液和废水中分离出来。