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Effect of Magnetic Field and Laser wave length on structural and optical properties of Platinum nanoparticles prepared by laser Ablation in Liquids
دراسة تأثير المجال المغناطيسي وطول موجةالليزر على الخواص التركيبية والبصرية لجسيمات البلاتين النانوية المحضرة بطريقة الاستئصال الليزري في السوائل

Authors: Nagham Mohammed Obayd نغم محمدعبيد --- Ghaleb Ali Al-Dahash غالب عبد الوهاب علي الدهش
Journal: Albahir journal مجلة الباهر ISSN: 23125721 Year: 2015 Volume: 2 Issue: 3,4 Pages: 83-97
Publisher: AL-Abbas Holy Shrine العتبة العباسية المقدسة

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Abstract

Abstract In this research were study the effect of changing the magnetic field and pulse laser wavelength on the properties of platinum nanoparticles prepared by laser ablation in different concentrations of various solutions such as double distilled deionized water (DDDW), methanol and sodium dodecyl sulphate (SDS) with various concentrations. using pulsed laser ablation method to preparation of platinum nanoparticles around 5-10 (nm) using pulsed laser (Nd: YaG) using various wavelength. the absorbance spectra and florescence measured to study the optical properties of preparation, the morphology of Pt characterized by scanning electron microscope (SEM) and transmition electron microscope (TEM). For colloidal solutions prepared in this way. The results showed the possibility of preparation of colloidal solutions of platinum and grain size less than 10 (nm). The results showed absorption at the wavelength 280 (nm). The scanning electron microscope images showed the formation Spherical shape of nanoparticles using laser ablation (PLA) method.

اﳋلاﺻة ﺗﻢ ﰲ ﻫﺬﺍ ﺍﻟﺒﺤﺚ ﺩﺭﺍﺳﺔ ﺗﺄﺛﲑ ﺗﻐﻴﲑ ﺍﳌﺠﺎﻝ ﺍﳌﻐﻨﺎﻃﻴﴘ ﻭﻃﻮﻝ ﻣﻮﺟﺔ ﻧﺒﻀﺔ ﺍﻟﻠﻴﺰﺭ ﻋﲆ ﺧﻮﺍﺹ ﺟﺴﻴﲈﺕ ﺍﻟﺒﻼﺗﲔ ((SDS) Sodiumﺍﻟﻨﺎﻧﻮﻳﺔ ﺍﳌﺤﴬﺓ ﺑﻄﺮﻳﻘﺔ ﺍﻻﺳﺘﺌﺼﺎﻝ ﺍﻟﻠﻴﺰﺭﻱ ﰲ ﳏﺎﻟﻴﻞ ﳐﺘﻠﻔﺔ ﻣﺜﻞ ﺍﳌﺎﺀ ﻣﻨﺰﻭﻉ ﺍﻻﻳﻮﻧﺎﺕ، ﻭﺍﳌﻴﺜﺎﻧﻮﻝ ﻭ ﺑﱰﺍﻛﻴﺰ ﳐﺘﻠﻔﺔ. ﺍﺳﺘﺨﺪﻣﺖ ﻃﺮﻳﻘﺔ ﺍﻻﺳﺘﺌﺼﺎﻝ ﺑﺎﻟﻠﻴﺰﺭ ﺍﻟﻨﺒﴤ ﻟﺘﺤﻀﲑ ﺟﺴﻴﲈﺕ ﺍﻟﺒﻼﺗﲔ ﺍﻟﻨﺎﻧﻮﻳﺔ Dodecyl Sulphate) )ﻧﺎﻧﻮﻣﻴﱰ(. 355،532،1064 )ﻧﺎﻧﻮﻣﻴﱰ( ﺑﺎﺳﺘﺨﺪﺍﻡ ﻟﻴﺰﺭ)ﺍﻟﻨﺪﻳﻤﻴﻮﻡ-ﻳﺎﻙ( ﺍﻟﻨﺒﴤ ﻭﺃﻃﻮﺍﻝ ﻣﻮﺟﻴﺔ ﳐﺘﻠﻔﺔ 5-10ﺑﺤﺪﻭﺩ (، ﻟﻠﻤﺤﺎﻟﻴﻞ ﺍﻟﻐﺮﻭﻳﺔ TEM) ( ﻭﺍﻟﻨﻔﺎﺫ SEM)ﻗﻴﺴﺖ ﺃﻃﻴﺎﻑ ﺍﻻﻣﺘﺼﺎﺻﻴﺔ، ﻭﺍﻟﻔﻠﻮﺭﺓ، ﻭﻓﺤﺺ ﺍﳌﺠﻬﺮ ﺍﻻﻟﻜﱰﻭﲏ ﺍﳌﺎﺳﺢ )ﻧﺎﻧﻮﻣﻴﱰ(. 10ﺍﳌﺤﴬﺓ ﲠﺬﻩ ﺍﻟﻄﺮﻳﻘﺔ. ﻭﺑﻴﻨﺖ ﺍﻟﻨﺘﺎﺋﺞ ﺇﻣﻜﺎﻧﻴﺔ ﲢﻀﲑ ﳏﺎﻟﻴﻞ ﺍﻟﺒﻼﺗﲔ ﺍﻟﻐﺮﻭﻳﺔ ﻭﺑﺤﺠﻮﻡ ﺣﺒﻴﺒﻴﺔ ﺑﺄﻗﻞ ﻣﻦ )ﻧﺎﻧﻮﻣﻴﱰ(. ﺍﻥ ﺻﻮﺭ ﺍﳌﺠﻬﺮ ﺍﻻﻟﻜﱰﻭﲏ ﺍﳌﺎﺳﺢ ﺃﻇﻬﺮﺕ 280ﺣﻴﺚ ﺃﻇﻬﺮﺕ ﻗﻤﺔ ﺍﻣﺘﺼﺎﺹ ﻋﻨﺪ ﺍﻟﻄﻮﻝ ﺍﳌﻮﺟﻲ (PLA)ﺗﻜﻮﻧﻮﺗﺸﻜﻴﻞ ﺟﺴﻴﲈﺕ ﻧﺎﻧﻮﻳﺔ ﺫﺍﺕ ﺷﻜﻞ ﻛﺮﻭﻱ ﺑﺎﺳﺘﺨﺪﺍﻡ ﻃﺮﻳﻘﺔ ﺍﻻﺳﺘﺌﺼﺎﻝ ﺑﺎﻟﻠﻴﺰﺭ

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