eng Sami Publishing Company (SPC) Asian Journal of Nanosciences and Materials 2645-775X 2588-669X 2018-07-01 1 3 104 114 10.26655/ajnanomat.2018.6.1 61699 مقاله پژوهشی Fatemeh Ahmadi 1 Malak Hekmati 2 Mohammad Yousefi [email protected] 3 Hojat Veisi [email protected] 4 Department of Chemistry, Sciences and Research Branch, Islamic Azad University, Tehran, Iran Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Chemistry, Pharmaceutical Sciences Branch, Islamic Azad University, (IAUPS), Tehran, Iran Department of Chemistry, Sciences and Research Branch, Islamic Azad University, Tehran, Iran. Department of Chemistry, Payame Noor University, PO BOX 19395-4697 Tehran, Iran. A simple and biological method for the fabrication of palladium nanoparticles (Pd NPs) was developed, applying the non-toxic and sustainable natural extract from Artemisia abrotanum as the reducing, stabilizing and capping agent. UV-vis spectroscopy, X-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDS), were utilized to classify the synthesized Pd NPs@Artemisia catalyst. The Pd NPs@Artemisia demonstrated excellent behavior as a reusable nanocatalyst in Suzuki-Miyaura cross-coupling reactions at room temperature. The nanocatalyst was recycled 7 times without any significant deduction in catalytic activity. https://www.ajnanomat.com/article_61699_047a545a03641e59ba1a73c5ad4b9301.pdf Pd nanoparticles Artemisia abrotanum Green synthesis Suzuki C-C coupling Bond formation Catalyst eng Sami Publishing Company (SPC) Asian Journal of Nanosciences and Materials 2645-775X 2588-669X 2018-07-01 1 3 115 121 10.26655/ajnanomat.2018.6.2 61809 مقاله پژوهشی Veeriah Veeraganesh [email protected] 1 Alagappan Subramaniyan [email protected] 2 Thambu Sornakumar [email protected] 3 Department of Physics, Thiagarajar College of Engineering, Madurai-625015. Departments of Mechanical Engineering, Thiagarajar College of Engineering, Madurai-625015 Department of Physics, Thiagarajar College of Engineering, Madurai-625015. Tin (IV) oxide (SnO₂) is a compound semiconductor which has been used for gas sensing and fluoride removal. SnO₂ was synthesized with tin chloride as a precursor by sol gel method. Aloe vera was added during the preparation of SnO₂ to study its effect on the nanosize, composition and morphology. The prepared nanopowders are characterized by XRD, SEM and FTIR to analyze the crystallite size, morphology, functional groups and absorption bands. FTIR reveal the change in functional group and shift in absorbance due to presence of Aloe vera. XRD analysis with Williamson Hall plot confirms the nanosize which was in accordance with the SEM results. PL spectra were recorded to find the effect of band gap and intensity on SnO₂ due to aloe vera. https://www.ajnanomat.com/article_61809_5de55a57b6d1d4fe0d220697bd2affed.pdf SnO2 Aloe vera Sol gel FTIR eng Sami Publishing Company (SPC) Asian Journal of Nanosciences and Materials 2645-775X 2588-669X 2018-07-01 1 3 122 134 10.26655/ajnanomat.2018.6.3 63013 مقاله پژوهشی Waqas Ahmad [email protected] 1 Muhammad Umair Ali [email protected] 2 Vijay Laxmi [email protected] 3 Ahmed Shuja Syed [email protected] 4 SZU-NUS Collaborative Innovation Centre for Optoelectronic Science & Technology, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P.R. China Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, P. R. China THz Technical Research Center of Shenzhen University, College of Electronic Science and Technology, Shenzhen University, Shenzhen 518060, P.R. China Centre for Advanced Electronics and Photovoltaic Engineering, International Islamic University, Islamabad 44000, Pakistan Research conducted on silicon based photodetector technology has recently shown rapidly growing momentum to develop the robust silicon based detectors for photonic applications. The thrust is to manufacture low cost and high efficiency detectors with CMOS process compatibility. In this study, a new design and characterization of PIN photodiode is envisaged. The simulation tool, Silvaco TCAD (and its variants), was used to design and simulate the processes of the device. Electrical and optical measurements such as I-V characteristics (dark current), and internal/external quantum efficiencies were analysed to evaluate the designed and processed device structure for its potential applications in photonics and other detection mechanisms. https://www.ajnanomat.com/article_63013_7c977ea4ae425dba5814b3bedaa804c3.pdf PIN photodiode CMOS I-V characteristics Quantum efficiency eng Sami Publishing Company (SPC) Asian Journal of Nanosciences and Materials 2645-775X 2588-669X 2018-07-01 1 3 135 142 10.26655/ajnanomat.2018.6.4 63467 مقاله پژوهشی Jyoti Sharma [email protected] 1 Ravi Bansal [email protected] 2 Pradeep Soni [email protected] 3 Swati Singh [email protected] 4 Anand Halve [email protected] 5 School of studies in chemistry, Jiwaji University, Gwalior (M.P.) India-474011 School of studies in chemistry, Jiwaji University, Gwalior (M.P.) India-474011 School of studies in chemistry, Jiwaji University, Gwalior (M.P.) India-474011 School of studies in chemistry, Jiwaji University, Gwalior (M.P.) India-474011 School of studies in chemistry, Jiwaji University, Gwalior (M.P.) India-474011 A convenient and efficient synthesis of 2-substituted benzothiazole derivatives are carried out by the one-pot reaction of 2-aminothiophenol with various aromatic aldehydes in using Bi₂O₃ nanoparticles as a catalyst at 60°C. The structure of the synthesized compounds have been confirmed on the basis of by FT-IR, H1 NMR, C13 NMR, Mass spectrometry and elemental analysis. This protocol afforded advantages i.e. purification of products by non-chromatographic method. Bi₂O₃ nanoparticles is cheap, readily available, versatile, environment friendly and recyclable. The reaction has been carried out in ethanol, thus eliminating hazardous organic solvents. https://www.ajnanomat.com/article_63467_4660e4b372fdf6cdd03d34509b0dbbf6.pdf Benzothiazole derivatives Synthesis Catalyzed and Nano-particles eng Sami Publishing Company (SPC) Asian Journal of Nanosciences and Materials 2645-775X 2588-669X 2018-07-01 1 3 143 156 10.26655/ajnanomat.2018.6.5 63510 Ali Khajesarvi [email protected] 1 Gholamhossein Akbari [email protected] 2 Department of Mining and Metallurgical Engineering, Yazd University, Safayieh, Daneshgah Blvd, University Main Campus, P.O. Box 89195-741, Yazd, Iran. Department of Materials Science and Engineering, Shahid Bahonar University, 76135-133, Kerman, Iran. The mechanical alloying (MA) procedure was used to synthesize the Ni50Al50 and Ni50Al45Mo5 nanocrystalline intermetallic compound using the pure Ni, Al and Mo elemental powders under an argon atmosphere for different times (8, 16, 48, 80 and 128 h) in a planetary ball mill with hardened steel balls (12 balls-1cm and 4 balls-2cm in diameter). The mechanical alloying was carried out in the attendance of various Mo contents as a micro-alloying element for various milling times. Microstructural characterization and structural changes of powder particles during mechanical alloying were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Outcomes confirmed that the synthesis behavior of NiAl intermetallic depends on the milling time and Mo content. The results show that after than 80h milling, the intermetallic phase is produced after opening the vial lid. X-ray map show that, in the fixed milling time, enhancing the Mo content leads to acceleration in the NiAl formation in air atmosphere. The mechanical alloyed powders have a microstructure consisting of nanometer size particles. Mo enhance has a considerable effect on the lowering of crystallite size. The TEM image showed that the Ni50Al45Mo5 nano-particles were less than 10 nm. The average grain size is smaller than those sizes obtained in the NiAl (25 – 35 nm) alloy. https://www.ajnanomat.com/article_63510_94ea11f66ce3206258af3361285b26a1.pdf mechanical alloying nanocrystalline intermetallic Ni50Al50 Mo eng Sami Publishing Company (SPC) Asian Journal of Nanosciences and Materials 2645-775X 2588-669X 2018-07-01 1 3 157 165 10.26655/ajnanomat.2018.6.6 63579 مقاله پژوهشی Praful Bansod [email protected] 1 Dnyaneshwar Rathod [email protected] 2 Departmentof Chemical Engieering, Sinhgad Technical Education Society, Sinhgad College of Engineering, Pune, India. Departmentof Chemical Engieering, Sinhgad Technical Education Society, Sinhgad College of Engineering, Pune, India. In the present study the production of biodiesel was performed by using raw material like soybean oil by trans-esterification process. According to the American Society for Testing and Materials (ASTM), the international specification free glycerol in biodiesel should not be more than 0.02 mass %. To achieve the biodiesel with the ASTM specification, biodiesel was separated using prepared PAN ultrafiltration membranes. The polyacronitrile ultra filtration membranes were prepared on supporting material of woven fabric by phase inversion technique of membrane casting. The prepared membranes were characterized in terms of its molecular weight cut off and flux of the membranes. Different molecular weights of the BSA solutions were used to determine the molecular weight cut off of the membranes. Then the obtained 6KDa and 15KDa Ultra filtration PAN membranes were used to separate the glycerol from (FAME) free acid methyl ester. It was observed that the both membranes were separated glycerol from the biodiesel below 0.02 mass % which meets the requirements of the ASTM specification of glycerol. The permeate side of the 6KDa membrane was estimated to be 0.017 mass % of glycerol, whereas, 15 KDa membrane was 0.02 mass % . The glycerol percentage in retained side membranes were increased with time. https://www.ajnanomat.com/article_63579_a092a042bd252b770e0f1946e2e68088.pdf Biodiesel Transesterification Polyacronitrile Ultra filtration Glycerol eng Sami Publishing Company (SPC) Asian Journal of Nanosciences and Materials 2645-775X 2588-669X 2018-07-01 1 3 166 171 10.26655/ajnanomat.2018.6.7 63581 مقاله پژوهشی Mohammad Almasi [email protected] 1 Department of Applied Chemistry, Faculty of Science, Malayer University, Malayer, 65174, Iran. In this paper, molecular interactions in the binary mixtures composed of a xylene and selected 1-alkanol (1-butanol up to 1-octanol) were investigated by measurement of the density at T= 323.15 K. From the experimental data, excess molar volumes were calculated. Obtained data were interpreted based on the type and magnitude of the physico-chemical interactions in the binary liquid systems. In this sense, PC-SAFT was used to correlate the volumetric behavior of binary mixtures. The correlated values of the model were satisfactory and the obtained data are within the uncertainty region. https://www.ajnanomat.com/article_63581_c54eb816d410ae1436f3bd8e55b5d94f.pdf Density 1-Alkanol PC-SAFT model