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Current trends of Silver doped Zinc oxide nanowires photocatalytic degradation for energy and environmental application
Surfaces and Interfaces ( IF 5.7 ) Pub Date : 2021-01-09 , DOI: 10.1016/j.surfin.2021.100931
S. Mangala Nagasundari , K. Muthu , K. Kaviyarasu , Dunia A. Al Farraj , Roua M. Alkufeidy

A simple phyto-assisted synthesis of zinc oxide nanowires (ZnO NWs) employing urinary tract infection (UTI) controlling traditional medicinal plant Pedalium murex L. mucilage, their silver (Ag) doping by co-precipitation method has been reported. The synthesized Ag-doped ZnO NWs photocatalytic action on the UTI antibiotic nitrofurantoin (NFT) and the dye methylene blue (MB) has been reported. The synthesized NPs optical, biocomponents, structural and chemical properties were determined by UV-vis spectroscopy, FTIR, XRD, SEM, TEM, EDAX, particle size analyzer. Photocatalytic activity of the phyto-assisted synthetic Ag-doped ZnO NWs was investigated on the degradation of the antibiotic NFT and the dye MB. The percentage of degradation, as well as dye removal efficiency was calculated. The UV-vis absorption spectrum showed a surface plasmon resonance (SPR) band at 370 nm - 400 nm with blue and redshift. The vast bandgap energy (3.37 eV - 2.75 eV) reduction indicated the inclination of noble metal Ag on the surface of ZnO NWs. XRD diffractogram revealed the crystalline hexagonal wurtzite structure and c-axis oriented growth of the synthesized ZnO nanowires. FTIR spectra functional groups exposed the possible contribution of plant phytochemicals in the formation of nanowires. TEM micrographs showed the agglomerations of zinc cite crystal structure nanowire with silver inclination on their surface. EDX and SAED confirmed the elemental composition and purity of the synthesized Ag/ZnO nanowires. The synthesized Ag-doped ZnO nanowires achieved photocatalytic degradation of about 78.51% of the antibiotic NFT and 92.43% of MB dye in 150 min under UV irradiation. The present study establishes the likelihood of photocatalytic degenerative potency of the antibiotic nitrofurantoin and methylene blue employing photosynthesized phytosynthesized zinc oxide nanowires.



中文翻译:

掺杂银的氧化锌纳米线光催化降解的趋势及其在能源和环境领域的应用

采用尿路感染(UTI)控制传统药用植物的氧化锌纳米线(氧化锌纳米线)的一个简单的植物辅助合成Pedalium骨螺大号在粘液中,已经报道了通过共沉淀法掺杂它们的银。已经报道了合成的Ag掺杂的ZnO NWs对UTI抗生素硝基呋喃妥因(NFT)和染料亚甲基蓝(MB)的光催化作用。通过紫外可见光谱,FTIR,XRD,SEM,TEM,EDAX,粒度分析仪测定了合成的NP的光学,生物成分,结构和化学性质。研究了植物辅助合成的Ag掺杂ZnO纳米线的光催化活性对抗生素NFT和染料MB降解的影响。计算了降解百分比以及染料去除效率。紫外可见吸收光谱在370 nm-400 nm处显示表面等离振子共振(SPR)带,并出现蓝移和红移。巨大的带隙能量(3.37 eV-2。75 eV)的还原表明贵金属Ag在ZnO NWs表面上的倾斜。XRD衍射图显示了晶体六方纤锌矿结构和合成的ZnO纳米线的c轴定向生长。FTIR光谱官能团揭示了植物植物化学物质在纳米线形成中的可能贡献。TEM显微照片显示,锌引晶结构纳米线在其表面上有银的倾斜。EDX和SAED证实了合成的Ag / ZnO纳米线的元素组成和纯度。合成的Ag掺杂ZnO纳米线在紫外光照射下150分钟内实现了约78.51%的抗生素NFT和92.43%的MB染料的光催化降解。本研究利用光合作用的植物合成的氧化锌纳米线确定了抗生素硝基呋喃妥因和亚甲基蓝的光催化降解能力的可能性。

更新日期:2021-01-22
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