Journal of Optoelectronic and Biomedical Materials最新文献_第8页

MANUFACTURING OF NANO HYBRID SOL- GEL COATING AND STUDYING THE RAMAN STRUCTURAL PROPERTIES, MORPHOLOGICAL CHARACTERISTICS AND THEIR APPLICATION AS ANTIOXIDANT FOR CONTAMINATE ROHDAMINE B (RhB) PIGMENT 摘要纳米溶胶-凝胶复合涂层的制备、拉曼结构特性、形态特征及其在污染罗丹明B (RhB)颜料中的抗氧化应用研究

IF 1.1

Journal of Optoelectronic and Biomedical Materials Pub Date : 2020-01-01 DOI: 10.15251/jobm.2020.121.1

Z. Jameel, M. Hussan

{"title":"MANUFACTURING OF NANO HYBRID SOL- GEL COATING AND STUDYING THE RAMAN STRUCTURAL PROPERTIES, MORPHOLOGICAL CHARACTERISTICS AND THEIR APPLICATION AS ANTIOXIDANT FOR CONTAMINATE ROHDAMINE B (RhB) PIGMENT","authors":"Z. Jameel, M. Hussan","doi":"10.15251/jobm.2020.121.1","DOIUrl":"https://doi.org/10.15251/jobm.2020.121.1","url":null,"abstract":"Titania have been extremely investigated for employing in the paint fields due to its importance as pigments. Therefore, TiO2 particles are perfect candidates in the paint industry. The nanoparticles were mixed with coating solution (i.e. hybrid sol-gel and organosilicate nanoparticles (OSNP) at concentration (1%wt) for both anatase and rutile. Films were prepared by spin coating method which has been studied by the (Electron Dispersive X-ray Spectroscopy) (EDS)/ (Scanning Electron Microscope) to define the components of concentrations. Results of Raman Spectroscopy to distinguish between crystalline phases, Raman shift resulted for anatase about (142.1, 411.1, 547.4 and 669.6) cm-1 , rutile (190,272,452 and 616) cm-1 . Additionally, the films were studied the thickness and refractive index (n) by Spectroscopic Ellipsometer(SE) for nano-anatase (1%wt) film thickness (128)nm and n equal (2.25), for nano-rutile films thickness (313.5)nm and n equal (2.5). Profilometer investigated the coating topography to demonstrate the Root Mean Square (RMS) to identify the roughness which increased by increasing particle size. Fourier Transform Infrared (FTIR) analysis showed the strong bonds of the nanoparticles in frequency region between (400-1000) cm-1 corresponds to Ti-O-Ti, also the bands at cm-1 were for a symmetric Si-O-Si stretching and vibration, respectively. Self-cleaning tests on the films were performed using Rhodamine B (RhB) as an antioxidant indicator.","PeriodicalId":43605,"journal":{"name":"Journal of Optoelectronic and Biomedical Materials","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67041891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

SYNTHESIS GALLIUM NITRIDE THIN FILMS BY PULSED LASER DEPOSITION AS AMMONIA (NH3) GAS SENSOR 脉冲激光沉积法合成氮化镓薄膜作为氨(nh3)气体传感器

IF 1.1

Journal of Optoelectronic and Biomedical Materials Pub Date : 2020-01-01 DOI: 10.15251/jobm.2020.121.17

Z. E. Slaiby, A. Ramizy

引用次数: 5

IMPACT OF TiO2 AND H2O2 ON PHOTOCATALYTIC DEGRADATION OF PHODAMINE B UNDER ULTRAVIOLET C (UV-C) RADIATION FOR EFFICIENT POLLUTED WASTEWATER TREATMENT TiO2和H2O2对紫外-C光催化降解PHODAMINE B高效处理污染废水的影响

IF 1.1

Journal of Optoelectronic and Biomedical Materials Pub Date : 2020-01-01 DOI: 10.15251/jobm.2020.121.9

N. Harun, C. Sheng, M. Sabri, A. N. Dagang, H. Salleh

引用次数: 3

INVESTIGATION OF THE EFFECT OF ANNEALING TEMPERATURE ON STRUCTURAL, OPTICAL AND ANTIBACTERIAL PROPERTIES OF COPPER OXIDE NANOPARTICLES PREPARED BY FACILE CO-PRECIPITATION ROUTE 研究了退火温度对易共沉淀法制备的氧化铜纳米颗粒结构、光学和抗菌性能的影响

IF 1.1

Journal of Optoelectronic and Biomedical Materials Pub Date : 2020-01-01 DOI: 10.15251/jobm.2020.122.43

H. Anwar, S. M. B. Naqvi, B. Abbas, M. Shahid, M. Iqbal, M. Shaharyar, A. Islam, F. Batool, M. Khalid, A. Jamil

{"title":"INVESTIGATION OF THE EFFECT OF ANNEALING TEMPERATURE ON STRUCTURAL, OPTICAL AND ANTIBACTERIAL PROPERTIES OF COPPER OXIDE NANOPARTICLES PREPARED BY FACILE CO-PRECIPITATION ROUTE","authors":"H. Anwar, S. M. B. Naqvi, B. Abbas, M. Shahid, M. Iqbal, M. Shaharyar, A. Islam, F. Batool, M. Khalid, A. Jamil","doi":"10.15251/jobm.2020.122.43","DOIUrl":"https://doi.org/10.15251/jobm.2020.122.43","url":null,"abstract":"Copper oxide (CuO) nanoparticles are important due to their excellent properties and applications such as nano electronics, gas sensors, solar cell and super conductors. Copper oxide have been successfully prepared by using co-precipitation method. CuCl2. 2H2O and NaOH are used in the synthesis of copper oxide nanoparticles as a precursers. Samples annealed at different temperatures such as 400 ºC, 500 ºC, 600 ºC and 700 ºC. The as prepared samples were investigated X-ray diffraction (XRD), scanning electron microscopy (SEM), UV-vis spectroscopy. Their using Antibacterial activity against the two bacterial strain Gram-positive and Gram negative such as (E. coli and B. subtilis) and Hemolysis. Was also investigated XRD analysis showed structure of copper oxide nanoparticles was monoclinic and average crystallite size was found to increase with an increase in annealing temperature in the range of 35 nm to 45 nm. Morphology of SEM images showed that CuO nanostructures were rod like at lower temperature but in higher temperature sphere- like shape was observed. UV-visible spectroscopy results revealed the variation of band gap energy with increasing annealing temperature. Samples prepared at higher temperatures exhibited high antibacterial activity for E. coli and B. subtilis and low toxicity. Low homolytic is safer to use in different applications.","PeriodicalId":43605,"journal":{"name":"Journal of Optoelectronic and Biomedical Materials","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67043545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

SYNTHESIS, CHARACTERIZATION, AND ANTIBACTERIAL ACTIVITY OF COBALT DOPED (α-Fe2O3) THIN FILMS 掺杂钴(α-Fe2O3)薄膜的合成、表征及抗菌活性

IF 1.1

Journal of Optoelectronic and Biomedical Materials Pub Date : 2020-01-01 DOI: 10.15251/jobm.2020.122.33

D. Bekkar, Y. Meftah, B. Benhaoua, A. Rahal, A. Benhaoua, A. Hamzaoui

{"title":"SYNTHESIS, CHARACTERIZATION, AND ANTIBACTERIAL ACTIVITY OF COBALT DOPED (α-Fe2O3) THIN FILMS","authors":"D. Bekkar, Y. Meftah, B. Benhaoua, A. Rahal, A. Benhaoua, A. Hamzaoui","doi":"10.15251/jobm.2020.122.33","DOIUrl":"https://doi.org/10.15251/jobm.2020.122.33","url":null,"abstract":"0-20 wt % Cobalt doped hematite iron oxide (α-Fe2O3) thin films were deposited on 500°C heated glass substrates via spray pyrolysis method with moving nozzle. The dopant concentration is stepped as 0, 2%, 5%, 10%, and 20%. For the non doped thin film, XRD analyses exhibit the presence of diffraction peaks corresponding to planes (012), (104), (110), (113), (024), (116), (214), and (300) confirming the formation of α-Fe2O3 phase. While for the Co doped α-Fe2O3 thin films, further diffraction peaks corresponding to α-Fe2O3 phase, peaks matching well with the planes (200) and (311) of cobalt oxides CoO and Co3O4 respectively are observed. Co substitution was confirmed by XRD based on peaks shift of hematite towards higher angles. The crystallite size of the hematite increases from 37nm to 47nm with increasing dopant from 0 to 2wt. % Co/Fe. Then it decreases to 28nm for 20wt. % Co doping. While for cobalt oxides CoO and Co3O4, their crystallite sizes were found to be in the range of 29-32nm and 18-43nm, respectively. The optical investigation indicates an increase in transmittance with increasing the dopant level reaching 80% at 600nm with blue shift in the band gap for the doped samples. FTIR study confirms the existence of the cobalt oxides at wave number average 460-542cm-1 . As an application in the areas of the antibacterial test, cobalt doped hematite nanoparticles (NPs) exhibit a good antibacterial activity against E. coli, Listeria innocua, Pseudo monas aeruginosa and Salmonella beyond 5wt. % Co/Fe doping.","PeriodicalId":43605,"journal":{"name":"Journal of Optoelectronic and Biomedical Materials","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67043658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1