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

被引：1

作者：

Gebrekidan, Zufan ^{[1
]}

Ravikumar, C. R. ^{[2
]}

Khasim, Syed ^{[3
]}

Reddy, S. Giridhar ^{[4
]}

Tsegaye, Dereje ^{[1
]}

Abebe, Buzuayehu ^{[1
]}

机构：

[1] Adama Sci & Technol Univ, Sch Appl Nat Sci, Dept Appl Chem, POB 1888, Adama, Ethiopia

[2] East West Inst Technol, Res Ctr, Dept Sci, Bangalore 560091, India

[3] Univ Tabuk, Fac Sci, Dept Phys, Adv Mat Res Lab, Tabuk 71491, Saudi Arabia

[4] Amrita Vishwa Vidyapeetham, Amrita Sch Engn, Dept Chem, Bengaluru 560035, India

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2025年 / 171卷

关键词：

ZnO; Doping; Pb(II) ion sorption; Isotherms; Kinetics; ZNO; DEGRADATION;

D O I：

10.1016/j.inoche.2024.113622

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

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.

引用

页数：12

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