Structural,morphological,optical and antibacterial performances of rare earth(Sm)-doped ZnO nanorods  

作　　者：A.Ravi J.Samuel S.Sahaya Jude Dhas S.Usharani Turibius Simon D.Senthil Kumar S.K.Jasmin Vijitha A.Sivakumar Raju Suresh Kumar C.S.Biju 

机构地区：[1]Department of Physics,University College of Engineering,Kancheepuram,631552,Tamilnadu,India [2]Department of Physics and Research Centre,Malankara Catholic College,Mariagiri,629153,Tamilnadu,India [3]Manonmaniam Sundaranar University,Abishekapatti,627012,Tirunelveli,Tamilnadu,India [4]Saveetha School of Engineering,Saveetha Institute of Medical and Technical Sciences,Saveetha University,Chennai,Tamil Nadu,602105,India [5]Department of Chemistry,S.I.V.E.T College,Gowrivakkam,Chennai,600073,Tamilnadu,India [6]Department of Biotechnology,Vivekanandha College of Arts and Science for Woman(Autonomous),Elayampalam,637205,Tiruchengode,Namakkal,Tamilnadu,India [7]Department of Physics,Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and Technology,Avadi,Chennai,600062,India [8]Department of Physics&Research Centre,Muslim Arts College,Thiruvithancode,629174,Tamilnadu,India [9]Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang,550081,China [10]Department of Chemistry,College of Science,King Saud University,P.O.Box 2455,Riyadh,11451,Saudi Arabia [11]Department of Physics,St.Alphonsa College of Arts and Science,Soosaipuram,Karinkal,629157,Tamil Nadu,India

出　　处：《Journal of Rare Earths》2024年第11期2119-2127,I0005,共10页稀土学报（英文版）

基　　金：supported by Researchers Supporting Project number (RSP2024R142),King Saud University,Riyadh,Saudi Arabia。

摘　　要：The significant rise of ultra-violet(UV) radiation and pathogenic infectious bacteria poses a serious threat to global health.Numerous researchers' interests are attracted by novel materials with strong UVblocking ability,antibacterial activity and low toxicity to other species.In this case,a simple wet chemical method with different annealing temperatures(400,500,and 600℃) was employed to create highly effective rare earth(Sm)-doped ZnO nanorods.The(101) plane of wurtzite ZnO shifts towards a lower angle with increasing annealing temperature,according to the X-ray diffraction(XRD) study findings,which additionally establishes the consequence of lattice expansion.Occurrence of doublet peaks of Sm 3d(Sm 3d_(5/2) and Sm 3d_(3/2)) in the X-ray photoelectron spectroscopy(XPS) spectrum clearly validates the substitution of Sm^(3+) ions in the 500℃-annealed samples.The 500℃-annealed nanorods exhibit combined performances of the wide band gap,improved UV absorbance,and vivid green luminescent emission(563 nm).Additio nally,the nanorods have favorable UV-blocking execution of 96% for UVA at 360 nm,92% for UVB at 320 nm,and 57% for UVC at 225 nm,which is greater than the majority of ZnO-related materials that have been reported up to this date.Sm doping is also appropriate for improving bacterial inhibition against the two studied strains(Escherichia coli and Staphylococcus aureus),in addition to the intriguing features discussed above.Furthermore,with maximum inhibition zone diameters of 20±0.72 and 18±0.57 mm,respectively,these nanorods exhibit high inhibitory action against E.coli and S.aureus bacterial strains.The rare earth-doped material developed during the current experiment,which was annealed at 500℃,could potentially serve as an effective replacement for UV-blocking and antibacterial material,especially for biomedical applications.

关 键 词：Wet chemical method Rare earth doping Metal oxide UV-SHIELDING Bacterial inhibition 

分 类 号：TB34[一般工业技术—材料科学与工程]