Eco-Innovation in Bi-Metallic Oxides: Pioneering Solutions for Dye Contamination and Bacterial Challenges

IF 2.7 4区 化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR
P. Rosaiah, Radhalayam Dhanalakshmi, Kilari Naveen Kumar, Masoom Raza Siddiqui, G. V. Lokeswara Reddy, N. Nanda Kumar Reddy, Liwen Zhang, Guru Prakash Nunna, Tae Jo Ko
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引用次数: 0

Abstract

This study delineates the synthesis of bimetallic bismuth nickel oxide (BNO) nanoparticles employing a microwave combustion method that integrates a green synthesis approach using Trachyspermum ammi (Ajwain) seed extract. The nanoparticles were subjected to an exhaustive suite of analytical techniques to assess their morphological, structural, optical, and electronic characteristics. Techniques utilized included scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), UV-diffuse reflectance spectroscopy (DRS), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). Photocatalytic performance of the synthesized BNO nanoparticles was evaluated through the degradation of Malachite Green (MG), a prevalent synthetic dye and notable aquatic contaminant. The nanoparticles exhibited a photodegradation efficiency of 97.18% for MG, following pseudo-first-order kinetics with a rate constant of 0.04669 min− 1. The degradation mechanism was elucidated through the scavenging of reactive oxygen species, particularly superoxide (O₂•-) and hydroxyl radicals (•OH), identifying them as the primary reactive species. In addition to photocatalytic activities, the BNO nanoparticles were tested for antibacterial efficacy of 93.97% and 96.69% against two bacterial strains such as Enterococcus faecalis (Gram-positive) and Escherichia coli (Gram-negative) respectively, demonstrating significant antibacterial properties.

双金属氧化物的生态创新:染料污染和细菌挑战的开创性解决方案
本研究描述了利用微波燃烧方法合成双金属铋镍氧化物(BNO)纳米颗粒,该方法结合了绿色合成方法,利用石英树种子提取物。纳米粒子经受了一套详尽的分析技术来评估它们的形态、结构、光学和电子特性。所使用的技术包括扫描电子显微镜(SEM)、透射电子显微镜(TEM)、x射线衍射(XRD)、紫外漫反射光谱(DRS)、傅里叶变换红外光谱(FTIR)和x射线光电子能谱(XPS)。通过对孔雀石绿(一种常见的合成染料和水生污染物)的降解,评价了合成的BNO纳米颗粒的光催化性能。纳米颗粒对MG的光降解效率为97.18%,符合准一级动力学,速率常数为0.04669 min−1。通过清除活性氧,特别是超氧自由基(O₂•-)和羟基自由基(•OH),阐明了其降解机制,确定它们是主要的活性氧。除光催化活性外,BNO纳米颗粒对粪肠球菌(革兰氏阳性)和大肠杆菌(革兰氏阴性)两种细菌的抗菌效果分别为93.97%和96.69%,显示出显著的抗菌性能。
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来源期刊
Journal of Cluster Science
Journal of Cluster Science 化学-无机化学与核化学
CiteScore
6.70
自引率
0.00%
发文量
166
审稿时长
3 months
期刊介绍: The journal publishes the following types of papers: (a) original and important research; (b) authoritative comprehensive reviews or short overviews of topics of current interest; (c) brief but urgent communications on new significant research; and (d) commentaries intended to foster the exchange of innovative or provocative ideas, and to encourage dialogue, amongst researchers working in different cluster disciplines.
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