Solvothermal Growth of MWCNT-Supported Co/Ag/N-Doped Ternary ZnO Nanocomposite with Altered Band Gap for Visible Light Active Photocatalyst for Environmental Remediation Application
Manisha Dagar, Suresh Kumar, Amit Jain, Anil Vohra
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引用次数: 0
Abstract
This study investigates the photocatalytic properties of carbon nanotube (CNT)-supported nitrogen-, cobalt-, and silver-doped zinc oxide (ZnO) synthesized via the solvothermal method. Various characterization techniques, including X-ray photoelectron spectroscopy (XPS), BET surface area analysis, energy-dispersion X-ray (EDX) spectroscopy, UV–visible spectroscopy (UV–Vis), scanning electron microscopy (SEM), X-ray diffraction (XRD), photoluminescence (PL), Fourier transform infrared (FTIR), and transmission electron microscopy (TEM), were employed. Photoluminescence spectroscopy revealed lattice defects and the doping effect on ZnO’s electron–hole recombination. FTIR spectroscopy identified functional groups, and EDX and XPS confirmed the presence of Ag, Co, C, Zn, O, and N. XRD and TEM estimated crystal sizes between 21 and 24 nm. UV–Vis spectroscopy showed a reduced band gap from 3.18 to 2.40 eV. SEM images depicted hexagonal nanoparticle structures. BET analysis showed a Category 4 adsorption isotherm and a pore diameter of 8.527 nm. The nanocomposite ZnO exhibited significant photocatalytic degradation under visible light, achieving 96% and 85% degradation of Congo red and methylene blue dyes, respectively. This study highlights the enhanced photocatalytic performance of CNT-supported nitrogen-, cobalt-, and silver-doped ZnO nanocomposites, suggesting their potential for environmental remediation applications.
Solvothermal Growth of MWCNT-Supported Co/Ag/N-Doped Ternary ZnO Nanocomposite with Altered Band Gap for Visible Light Active Photocatalyst for Environmental Remediation Application(具有带隙变化的 MWCNT Supported Co/Ag/N-Doped 三元氧化锌纳米复合材料的溶热生长,用于环境修复领域的可见光活性光催化剂
期刊介绍:
The Brazilian Journal of Physics is a peer-reviewed international journal published by the Brazilian Physical Society (SBF). The journal publishes new and original research results from all areas of physics, obtained in Brazil and from anywhere else in the world. Contents include theoretical, practical and experimental papers as well as high-quality review papers. Submissions should follow the generally accepted structure for journal articles with basic elements: title, abstract, introduction, results, conclusions, and references.