Inquisition on enhanced photocatalytic performance of ternary cerium manganese nickel metal oxide nanocomposites

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Letters Pub Date : 2024-11-26 DOI:10.1016/j.matlet.2024.137791

V. Thayanithi , P. Arularasan

引用次数: 0

Abstract

The hydrothermal approach was used to successfully incorporate ternary Cerium Manganese Nickel mixed metal oxides (CMN-MMOs) with various Ce/Mn/Ni ratios. The improved crystallanity of incorporated CMN-MMOs was discovered using powder X-ray diffraction. From Ultra Violet (UV)–visible diffuse reflection spectroscopy (DRS), CMN-MMOs displays a broad absorption in the visible range. Scanning Electron Microscope (SEM) reveals that CMN-MMOs exhibit in nanoslab. Image of Transmission Electron Microscope (TEM) expose that synthesized samples are in hexagonal structure with average size of 20–30 nm. The photocatalytic activity was appraised for calcined samples of CMN-MMOs (1: 1: 2). It indicates the greatest photocatalysic activity with 89 % degradation of methylene blue (MB) dye. CMN- MMOs (1: 1: 2) also had a strong degradation effect on the non-dye contaminant phenol. Methylene Blue degradation followed a pseudo-first-order kinetic trend. The mechanism of photo degradation of CMN- MMOs was also explored.

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三元铈锰镍金属氧化物纳米复合材料增强光催化性能的研究

采用水热法成功合成了具有不同Ce/Mn/Ni比的三元铈锰镍混合金属氧化物（CMN-MMOs）。通过粉末x射线衍射发现掺入的CMN-MMOs的结晶度有所提高。从紫外-可见漫反射光谱（DRS）中，CMN-MMOs在可见光范围内具有较宽的吸收。扫描电子显微镜（SEM）显示CMN-MMOs在纳米板中表现。透射电子显微镜（TEM）图像显示，合成的样品呈六边形结构，平均尺寸为20 ~ 30 nm。对CMN-MMOs（1:1: 2）煅烧样品的光催化活性进行了评价，结果表明，CMN-MMOs的光催化活性最高，对亚甲基蓝（MB）染料的降解率为89%。CMN- MMOs（1:1: 2）对非染料污染物苯酚也有较强的降解作用。亚甲基蓝降解遵循准一级动力学趋势。探讨了CMN- MMOs的光降解机理。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive