Cu-ZnO/CuO多孔异质结构对铅离子的吸附

IF 4.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications Pub Date : 2024-11-26 DOI:10.1016/j.inoche.2024.113622

Zufan Gebrekidan , C.R. Ravikumar , Syed Khasim , S. Giridhar Reddy , Dereje Tsegaye , Buzuayehu Abebe

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引用次数: 0

摘要

采用橘皮萃取物为基础的溶液燃烧合成方法，成功合成了纯ZnO和Cu-ZnO/CuO （CuZC）异质结构。XRD结果表明，CuZC异质结构ZnO NPs为纤溶石相结构，晶粒尺寸为12 nm。间接UV-vis-DRS分析显示ZnO NPs和CuZC异质结构的能带能分别为3.16和2.95 eV。通过FESEM-EDS和TEM/HRTEM分析证实了多孔形貌和无杂质。采用电感耦合等离子体发射光谱法（ICP-OES）分析了NPs的铅（Pb）离子吸附电位。在Pb离子初始浓度为20 mg/L时，CuZC异质结构的去除率为96.3%。根据吸附动力学和等温线模型拟合值，确定了化学吸附吸附过程的优势。掺杂的NPs有潜力作为一种有效的、有利的吸附材料用于修复水中重金属离子。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Cu-ZnO/CuO porous heterostructures for adsorption of lead ion

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Cu-ZnO/CuO porous heterostructures for adsorption of lead ion

The pure ZnO and Cu-ZnO/CuO (CuZC) heterostructures had been successfully synthesized using an orange fruit peel extract-based solution combustion synthesis approach. The XRD result revealed the wurtizite phase structure of ZnO NPs with a crystallite size of 12 nm for the CuZC heterostructures. The indirect UV–vis-DRS analysis revealed the band gap energy of ZnO NPs and CuZC heterostructure to be 3.16 and 2.95 eV, respectively. Porous morphology and absence of impurities were confirmed from the FESEM-EDS and TEM/HRTEM analyses. The lead (Pb) ion adsorption potential of NPs was analyzed by inductively coupled plasma-optical emission spectrometry (ICP-OES) technique. The removal efficiency for CuZC heterostructure at an initial Pb ion concentration of 20 mg/L is 96.3 %. Based on the adsorption kinetics and isotherm models fitting value, dominance of the chemisorption adsorption process was confirmed. The doped NPs have the potential to be used as an effective and favorable adsorbent material for remediation of heavy metal ions from water solutions.

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来源期刊

Inorganic Chemistry Communications 化学-无机化学与核化学

CiteScore

5.50

自引率

7.90%

发文量

1013

审稿时长

53 days

期刊介绍： Launched in January 1998, Inorganic Chemistry Communications is an international journal dedicated to the rapid publication of short communications in the major areas of inorganic, organometallic and supramolecular chemistry. Topics include synthetic and reaction chemistry, kinetics and mechanisms of reactions, bioinorganic chemistry, photochemistry and the use of metal and organometallic compounds in stoichiometric and catalytic synthesis or organic compounds.