Iraqi Journal of Physics (IJP)最新文献_第7页

Effect of pH on the Structural and Optical Properties of Cadmium oxide Thin Films Prepared Using the Successive Ionic Layer Adsorption and Reaction (SILAR) Method pH对连续离子层吸附反应(SILAR)法制备氧化镉薄膜结构和光学性能的影响

Iraqi Journal of Physics (IJP) Pub Date : 2022-03-01 DOI: 10.30723/ijp.v20i1.975

F. K. Jawad, Nathera A. Al-tememee

{"title":"Effect of pH on the Structural and Optical Properties of Cadmium oxide Thin Films Prepared Using the Successive Ionic Layer Adsorption and Reaction (SILAR) Method","authors":"F. K. Jawad, Nathera A. Al-tememee","doi":"10.30723/ijp.v20i1.975","DOIUrl":"https://doi.org/10.30723/ijp.v20i1.975","url":null,"abstract":"Cadmium oxide (CdO) thin films were deposited using the sequencing ion layer adsorption and reaction (SILAR) method. In this study, the effect of the pH value of an aqueous solution of cadmium acetate at a concentration of 0.2 mol of the cadmium oxide film was determined. The solution source for the cadmium oxide film was cadmium ions and an aqueous ammonia solution. The CdO films were deposited on glass substrates at a temperature of 90 ℃. The cadmium oxide film thickness was determined by the weight difference method at pH values (7.2, 8.2). X-ray diffraction (XRD) and scanning electron microscopy (SEM) showed that the size of the crystals increased with the increase in the solution (pH). While the UV-visible spectra of the films revealed that the optical band gap energy decreases with increasing (pH) of the CdO solution. The absorbance spectrum of the cadmium oxide film was recorded in the wavelength range (300 – 900) nm. The change in the pH of the cadmium acetate aqueous solution from the energy gap and X-ray diffraction calculations showed that the film had an optical band gap energy and that the highest intensity was at (111) and that the membrane is n-type, as shown by studies to prepare the cadmium oxide membrane using the SILAR method.","PeriodicalId":14653,"journal":{"name":"Iraqi Journal of Physics (IJP)","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83549532","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

Effect of Copper on Tensile and Hardness of Al-Si Alloy in Automotive Application 铜对汽车用铝硅合金拉伸性能和硬度的影响

Iraqi Journal of Physics (IJP) Pub Date : 2022-03-01 DOI: 10.30723/ijp.v20i1.688

Sajed H. Mohmmed, Farah T. Noory

{"title":"Effect of Copper on Tensile and Hardness of Al-Si Alloy in Automotive Application","authors":"Sajed H. Mohmmed, Farah T. Noory","doi":"10.30723/ijp.v20i1.688","DOIUrl":"https://doi.org/10.30723/ijp.v20i1.688","url":null,"abstract":"In current research Copper was employed for preparing a ternary system of Al–Si alloy in different (0.2–2.5 wt. %) the best was taken is (1.5%wt) of copper that circumstances of solidification for improving the mechanical performance of the available in aluminium alloy. Cast iron molds were prepared to obtain tensile strength testing specimens. Alloys were prepared by employing gas furnaces. The molten metal was poured into a preheated cast-iron mold. The obtained alloy structures were studied using an X-ray diffractometer and optical microscopy. The mechanical performance of the prepared alloys was examined under the influence of different hardening conditions in both heat and non-heat-treated conditions. The outcomes showed at the ideal input status of friction stir processing, the cast alloy microstructure was enhanced in terms of refinement of eutectic and primary Si particles, homogeneous dispersion of Si, and the reduction in porosity. The mineral compounds formed during the hardening process were examined using an optical microscope. The highest maximum tensile strength (UTS) was 120 MPa for sample Al-22.5Si, and 147 MPa for sample Al-21Si-1.5Cu, while the highest hardness was 77 HB for sample Al-22.5Si, and 90 HB for sample Al-21Si-1.5Cu.","PeriodicalId":14653,"journal":{"name":"Iraqi Journal of Physics (IJP)","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87954037","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

Effect of Carbon Nanoparticles on the Performance Efficiency of a Solar Water Heater 纳米碳对太阳能热水器性能效率的影响

Iraqi Journal of Physics (IJP) Pub Date : 2022-03-01 DOI: 10.30723/ijp.v20i1.973

Wasan L. Al-Salim, J. Al-Asadi, M. A. Mahdi

{"title":"Effect of Carbon Nanoparticles on the Performance Efficiency of a Solar Water Heater","authors":"Wasan L. Al-Salim, J. Al-Asadi, M. A. Mahdi","doi":"10.30723/ijp.v20i1.973","DOIUrl":"https://doi.org/10.30723/ijp.v20i1.973","url":null,"abstract":"Carbon nanoparticles are prepared by sonication using carbon black powder. The surface morphology of carbon black (CB) and carbon nanoparticles (CNPs) is investigated using scanning electron microscopy (SEM). The particles size ranges from 100 nm to 400 nm for CB and from 10 nm to 100 nm for CNPs. CNPs and CB are mixed with silicon glue of different ratios of 0.025, 0.2, 0.05, and 0.1 to synthesis films. The optical properties of the prepared films are investigated through reflectance and absorbance analyses. The ratio of 0.05 for CNPs and CB is the best for solar paint because of its higher solar water heater efficiency and is then added to the silicon glue . Temperature of cold water and temperature of hot water in storage tank were tabulated on hourly basis with the help of an Arduino device. The atmospheric temperature was also noted. It was observed that outlet temperature of water was attained up to 75°C as compared to the inlet water temperature of 23°C for the tank applied with CNP-based paint. The tank applied with CNP-based paint has 4 °C higher water temperature than that coated with CB-based paint after 1 month of test under sun irradiation. Based on the results, the efficiency of a solar water heater depends on the difference in temperature of inlet water and outlet of heater. The efficiency of the solar water heater coated with CNPs is around 77% but the solar water heater coated with CB has an efficiency of 67%.","PeriodicalId":14653,"journal":{"name":"Iraqi Journal of Physics (IJP)","volume":"58 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73181827","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

Preparation, Characterization, and Antimicrobial Activity of Polyaniline and Fe2O3/Polyaniline Composite Nanoparticle 聚苯胺和Fe2O3/聚苯胺复合纳米颗粒的制备、表征及抗菌活性研究

Iraqi Journal of Physics (IJP) Pub Date : 2022-03-01 DOI: 10.30723/ijp.v20i1.725

Nather Ibraheem Mohamed, S. Hassan, Khaleed J. Khalil

{"title":"Preparation, Characterization, and Antimicrobial Activity of Polyaniline and Fe2O3/Polyaniline Composite Nanoparticle","authors":"Nather Ibraheem Mohamed, S. Hassan, Khaleed J. Khalil","doi":"10.30723/ijp.v20i1.725","DOIUrl":"https://doi.org/10.30723/ijp.v20i1.725","url":null,"abstract":"An oxidative polymerization approach was used to create polyaniline (PANI) and Fe2O3 /PANI nanoparticle combination. Various characterization approaches were used to investigate the structural, morphological, and Fe2O3 /PANI nanoparticle structures. The findings support the synthesis of polycrystalline nanoparticle PANI and Fe2O3 /PANI spherical nanoparticle composites. Gram-positive bacteria are tested for antibacterial activity. Various quantities of Nanoparticles of PANI and Fe2O3 /PANI nanoparticle composites were used to test Staph-aureus and gram-negative bacteria, E-coli, and candida species. PANI has antibacterial properties against all microorganisms tested. Fe2O3 /PANI nanoparticle composites, on the other hand, have higher antibacterial activity, as evidenced by the zone of inhibition. Bacterial inhibition zones are in S. aureus (positive), and E. coli are in good functioning order. With increasing concentrations of Fe2O3 /PANI nanoparticle composites, the inhibition zones of all bacteria are larger. Finally, the antimicrobial activity of Fe2O3 /PANI nanoparticle composite is characterized using a simplified mechanism based on electrostatic attraction. In this paper, a conductive polymer doped with iron nanoparticles was fabricated for the aim of testing it in the field of bacterial resistance.","PeriodicalId":14653,"journal":{"name":"Iraqi Journal of Physics (IJP)","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76697847","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

Effect of Zinc (Zn) -Doped on the Structural, Optical and Electrical Properties of (Cdo)1-Xznx Films Prepared by Pulsed Laser Deposition Technique 掺杂锌对脉冲激光沉积(Cdo)1-Xznx薄膜结构、光学和电学性能的影响

Iraqi Journal of Physics (IJP) Pub Date : 2021-12-01 DOI: 10.30723/ijp.v19i51.676

H. Abbas, K. Aadim, A. H. Khidhir

引用次数: 0

Impact of Aluminum Oxide Content on the Structural and Optical Properties of ZnO: AlO Thin Films 氧化铝含量对ZnO: AlO薄膜结构和光学性能的影响

Iraqi Journal of Physics (IJP) Pub Date : 2021-12-01 DOI: 10.30723/ijp.v19i51.685

H. H. Abass, Bushra Hasan

引用次数: 1

Study FTIR and AC Conductivity of Nanocomposite Electrolytes 纳米复合电解质的红外光谱和交流电导率研究

Iraqi Journal of Physics (IJP) Pub Date : 2021-12-01 DOI: 10.30723/ijp.v19i51.689

Elaaf Ali Swady, M. Jawad

引用次数: 3

Evaluate the Distribution of Heavy Elements that Dissolved in Ground Water Using IDW in AL-Wafa City, Al-Ramadi,Iraq 利用IDW评价伊拉克AL-Wafa市地下水中溶解重元素的分布

Iraqi Journal of Physics (IJP) Pub Date : 2021-12-01 DOI: 10.30723/ijp.v19i51.690

H. Rasheed, A. H. Shaban

引用次数: 8

Optical, Structural, Morphological Properties of Chromium (III) Oxide Nanostructure Synthesized Using Spray Pyrolysis Technique 喷雾热解技术合成氧化铬纳米结构的光学、结构、形态性质

Iraqi Journal of Physics (IJP) Pub Date : 2021-12-01 DOI: 10.30723/ijp.v19i51.692

F. H. Mohammed, H. Mikhlif

{"title":"Optical, Structural, Morphological Properties of Chromium (III) Oxide Nanostructure Synthesized Using Spray Pyrolysis Technique","authors":"F. H. Mohammed, H. Mikhlif","doi":"10.30723/ijp.v19i51.692","DOIUrl":"https://doi.org/10.30723/ijp.v19i51.692","url":null,"abstract":"Nanostructure of chromium oxide (Cr2O3-NPs) with rhombohedral structure were successfully prepared by spray pyrolysis technique using Aqueous solution of Chromium (III) chloride CrCl3 as solution. The films were deposited on glass substrates heated to 450°C using X-ray diffraction (XRD) shows the nature of polycrystalline samples. The calculated lattice constant value for the grown Cr2O3 nanostructures is a = b = 4.959 Å & c = 13.594 Å and the average crystallize size (46.3-55.6) nm calculated from diﬀraction peaks, Spectral analysis revealed FTIR peak characteristic vibrations of Cr-O Extended and Two sharp peaks present at 630 and 578 cm-1 attributed to Cr-O “stretching modes”, are clear evidence of the presence of crystalline Cr2O3. The energy band gap (3.4 eV) for the chromium oxide nanostructures was measured using the UV-VIS-NIR Optical Spectrophotometer. It was found that by scanning electron microscopy (SEM) and image results, there is a large amount of nanostructure with an average crystal size of 46.3-55.6 nm, which indicates that our synthesis process is a successful method for preparing Cr2O3 nanoparticles.","PeriodicalId":14653,"journal":{"name":"Iraqi Journal of Physics (IJP)","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84141561","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

Variation of pH and Composite Dosage on the Photocatalytic Activity for ZnO/epoxy Nanocomposites pH和复合用量对ZnO/环氧纳米复合材料光催化活性的影响

Iraqi Journal of Physics (IJP) Pub Date : 2021-12-01 DOI: 10.30723/ijp.v19i51.686

H. A. Alrubaie, Ban M. Muzahem

{"title":"Variation of pH and Composite Dosage on the Photocatalytic Activity for ZnO/epoxy Nanocomposites","authors":"H. A. Alrubaie, Ban M. Muzahem","doi":"10.30723/ijp.v19i51.686","DOIUrl":"https://doi.org/10.30723/ijp.v19i51.686","url":null,"abstract":"In this research, Zinc oxide (ZnO)/epoxy nanocomposite was synthesized by simple casting method with 2wt. % ZnO concentration. The aim of this work was to study the effect of pH and composite dosage on the photocatalytic activity of ZnO/ epoxy nanocomposite. Scanning electron microscopy (SEM) technique images proof the homogeneous distribution of ZnO nanoparticles in epoxy. A synthesized nanocomposite samples were characterized by Fourier Transform Infrared spectrometer (FTIR) measurements. Two spectra for epoxy and 2wt.% ZnO/epoxy nanocomposites were similar and there are no new bonds formed from the incorporation of ZnO nanoparticles. Using HCl and NaOH were added to Methylene blue (MB) dye (5ppm) to gat pH values 3 and 8. The degradation of the dye was 90.816% were pH =8 after 180 min. under sun-light. The degradation was 6.131% were pH=3 after 240 min. under sun-light irradiation. It is found that the base solution help in accelerating the photocatalytic process, pH with high value provides greater concentration of hydroxyl ions which interact with h+ to form hydroxyl radicals OH- that give an enhancement degradation rate of dyes. The dose of ZnO was increased from 3g to 6g with Methylene blue MB (5ppm) the degradation was 94.3755% after 240 min. under sun-light irradiation. This means that increasing the dose of ZnO, the photocatalytic activity will be increased.","PeriodicalId":14653,"journal":{"name":"Iraqi Journal of Physics (IJP)","volume":"56 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87269247","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