{"id":27950,"date":"2019-10-13T14:32:56","date_gmt":"2019-10-13T11:32:56","guid":{"rendered":"http:\/\/ihcoedu.uobaghdad.edu.iq\/?p=27950"},"modified":"2020-02-13T12:40:45","modified_gmt":"2020-02-13T09:40:45","slug":"%d9%82%d8%b3%d9%85-%d8%a7%d9%84%d9%83%d9%8a%d9%85%d9%8a%d8%a7%d8%a1-%d9%8a%d9%86%d8%a7%d9%82%d8%b4-%d8%b1%d8%b3%d8%a7%d9%84%d8%a9-%d9%85%d8%a7%d8%ac%d8%b3%d8%aa%d9%8a%d8%b1-%d8%aa%d8%a8%d8%ad%d8%ab-4","status":"publish","type":"post","link":"https:\/\/ihcoedu.uobaghdad.edu.iq\/?p=27950","title":{"rendered":"\u0642\u0633\u0645 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0621 \u064a\u0646\u0627\u0642\u0634 \u0631\u0633\u0627\u0644\u0629 \u0645\u0627\u062c\u0633\u062a\u064a\u0631 \u062a\u0628\u062d\u062b \u0641\u064a \u0627\u0645\u062a\u0632\u0627\u0632 \u0635\u0628\u063a\u0629 \u0627\u0644\u0643\u0648\u0646\u063a\u0648 \u0627\u0644\u0627\u062d\u0645\u0631 \u0645\u0646 \u0645\u062d\u0627\u0644\u064a\u0644\u0647\u0627 \u0627\u0644\u0645\u0627\u0626\u064a\u0629 \u0639\u0644\u0649 \u062d\u0635\u0627\u0626\u0631 \u0645\u0646 \u0627\u0644\u0627\u0644\u064a\u0627\u0641 \u0627\u0644\u0646\u0627\u0646\u0648\u064a\u0629"},"content":{"rendered":"

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    \n
  1. \n

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  2. \n

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  3. \n

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  4. \n

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  5. \n

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  7. \n

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    <\/h4>\n

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      \n
    1. \n

      \u0627\u062c\u0631\u0627\u0621 \u062f\u0631\u0627\u0633\u0629 \u0639\u0645\u0644\u064a\u0629 \u0644\u0627\u0645\u062a\u0632\u0627\u0632 \u0645\u0644\u0648\u062b\u0627\u062a \u0627\u062e\u0631\u0649 (\u0627\u064a\u0648\u0646\u0627\u062a \u0639\u0646\u0627\u0635\u0631 \u062b\u0642\u064a\u0644\u0629 \u0627\u0648 \u0627\u062f\u0648\u064a\u0629 \u0627\u0648 \u0627\u0635\u0628\u0627\u063a \u0627\u062e\u0631\u0649 \u063a\u064a\u0631 \u0627\u0644\u0635\u0628\u063a\u0629 \u0627\u0644\u0645\u062f\u0631\u0648\u0633\u0629 ) \u0639\u0644\u0649 \u062d\u0635\u0627\u0626\u0631 \u0627\u0644\u0627\u0644\u064a\u0627\u0641 \u0627\u0644\u0646\u0627\u0646\u0648\u064a\u0629 \u0627\u0644\u0645\u062d\u0636\u0631\u0629 \u0641\u064a \u0647\u0630\u0647 \u0627\u0644\u062f\u0631\u0627\u0633\u0629 .<\/span><\/h4>\n<\/li>\n
    2. \n

      \u062f\u0631\u0627\u0633\u0629 \u062a\u0623\u062b\u064a\u0631 \u0645\u0648\u0627\u062f \u0646\u0627\u0646\u0648\u064a\u0629 \u0627\u062e\u0631\u0649 \u0639\u0644\u0649 \u0639\u0645\u0644\u064a\u0629 \u0627\u0645\u062a\u0632\u0627\u0632 \u062d\u0635\u064a\u0631\u0629 \u0627\u0644\u0644\u064a\u0641 \u0627\u0644\u0646\u0627\u0646\u0648\u064a \u0627\u0644\u0627\u0648\u0644 .<\/span><\/h4>\n<\/li>\n
    3. \n

      \u063a\u0632\u0644 \u0627\u0644\u064a\u0627\u0641 \u0646\u0627\u0646\u0648\u064a\u0629 \u0645\u0646 \u0645\u062a\u0631\u0627\u0643\u0628\u0627\u062a \u0628\u0648\u0644\u064a\u0645\u0631\u064a\u0629 \u0628\u0646\u0633\u0628 \u0645\u062e\u062a\u0644\u0641\u0629 \u0628\u0627\u0639\u062a\u0645\u0627\u062f \u0627\u0644\u0628\u0648\u0644\u064a \u0627\u0643\u0631\u064a\u0644\u0648 \u0646\u062a\u0631\u064a\u0644 \u0643\u0645\u0643\u0648\u0646 \u0631\u0626\u064a\u0633\u064a \u0648\u062f\u0631\u0627\u0633\u0629 \u0639\u0645\u0644\u064a\u0629 \u0627\u0644\u0627\u0645\u062a\u0632\u0627\u0632 \u0639\u0644\u0649 \u0647\u0630\u0627 \u0627\u0644\u0646\u0648\u0639 \u0645\u0646 \u0627\u0644\u0633\u0637\u0648\u062d .<\/span><\/h4>\n<\/li>\n
    4. \n

      \u062f\u0631\u0627\u0633\u0629 \u0627\u0644\u062e\u0648\u0627\u0635 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629 \u0644\u0644\u0627\u0644\u064a\u0627\u0641 \u0627\u0644\u0646\u0627\u0646\u0648\u064a\u0629 \u00a0\u0627\u0644\u0645\u062f\u0631\u0648\u0633\u0629 .<\/span><\/h4>\n<\/li>\n
    5. \n

      \u062f\u0631\u0627\u0633\u0629 \u0627\u0644\u0641\u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062d\u064a\u0648\u064a\u0629 \u00a0\u0644\u0627\u0646\u0648\u0627\u0639 \u0645\u0646 \u0627\u0644\u0628\u0643\u062a\u0631\u064a\u0627 \u0648\u0627\u0644\u0641\u0637\u0631\u064a\u0627\u062a \u0644\u0644\u0627\u0644\u064a\u0627\u0641 \u0627\u0644\u0646\u0627\u0646\u0648\u064a\u0629 \u0627\u0644\u0645\u062f\u0631\u0648\u0633\u0629.<\/span><\/h4>\n<\/li>\n<\/ol>\n

      \"\"<\/strong><\/span><\/h3>\n
      \n

      Adsorption of Congo Red Dye from Their Aqueous Solutions on Mats of Electrospun Nanofibers;A Kinetics and Thermodynamic Study<\/span><\/h3>\n

      By \u00a0Shaima’a Abdulhussein Jadooa<\/span><\/h3>\n

      Supervised by Asst.prof.Dr.Guman Ahmed Nasir<\/span><\/h3>\n

      Abstract<\/span><\/h3>\n

      This study aims to use produces nanofibers mats of polyacrylonitrile by<\/span><\/h3>\n

      Using electrospinning technique. The electrospunnano fibers characterized<\/span><\/h3>\n

      by infrared spectroscopy (FTIR), scanning electron microscopy (SEM). It<\/span><\/h3>\n

      Was found that the diameters ranged from 200-100 nm, X-ray diffraction<\/span><\/h3>\n

      Spectroscopy (XRD), energy-dispersive X-ray spectroscopy (EDX), thermal gravimetric analysis (TGA) and differential scanning calorimetry(DSC). So, its surface area and porosity were measured by Brunauer Emmett-Teller) (BET) and (Barrett-Joyner- Halenda) (BJH) method<\/span><\/h3>\n

      Iron oxide nano particles have been prepared by precipitation method of<\/span><\/h3>\n

      hepta hydrate iron(II) sulfate and ferric chloride. The product was characterized by FTIR, XRD, AFM, SEM and EDX techniques, where the<\/span><\/h3>\n

      Particles size was found (30-50) nm<\/span><\/h3>\n

      The polymer solution was then diluted by minutes of iron oxide (1%) in<\/span><\/h3>\n

      Order to increase the membrane,s ability to adsorption over the first surface<\/span><\/h3>\n

      The first nanofibers mat was modified with iron oxide particles by doping<\/span><\/h3>\n

      The electros pining solution \u00a0with ratio 1% to increase the surface efficiency.<\/span><\/h3>\n

      The second nanofibers mat was spun in the same conditions was characterized with the previous techniques. The diameters and surface are aware found to be less.<\/span><\/h3>\n

      The study was conducted to the adsorption of Congo red dye on the surfaces of nanofibers mats at different temperatures (298,303,308,313 K<\/span><\/h3>\n

      The optimal factors and conditions for the adsorption process were investigated, such as contact time, dose of surfaces, initial concentration of<\/span><\/h3>\n

      The solution dye, pH, ionic strength and temperature were determined<\/span><\/h3>\n

      It was found that the equilibrium time was (150 min) for both Nanofibers mats. So, the percentage of the dye removal was calculated at different temperatures<\/span><\/h3>\n

      The kinetic adsorption kinetic was studied also, it was found that compatible\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><\/h3>\n

      With the pseudo second order. So, the activation energy of both adsorption systems was calculated, it was found for the first nanofibers matless than the second nanofibers mat. The adsorption data have been applied on Freundlich and Langmuir models, the results showed that adsorptionobeys Freundlich isotherm. Thermodynamic functions were calculated, it was found that enthalpy has a negative value that means the reaction was exothermic. While Gibbs free energy has positive value, which implies to<\/span><\/h3>\n

      The reaction is nonspontaneous, while the entropy values were negative<\/span><\/h3>\n

      Which indicates to the random decreasing. In addition, the desorption process of both nanofibers mats was studied. The results of desorption<\/span><\/h3>\n

      Showed possibility of the first surface recycling in some solutions and<\/span><\/h3>\n

      Impossibility of the second surface recycling, that due to the type of<\/span><\/h3>\n

      Adsorption system<\/span><\/h3>\n

      \u00a0<\/strong><\/span><\/h3>\n

      <\/h4>\n","protected":false},"excerpt":{"rendered":"

      \u0646\u0627\u0642\u0634 \u0642\u0633\u0645 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0621 \u0641\u064a \u0643\u0644\u064a\u0629 \u0627\u0644\u062a\u0631\u0628\u064a\u0629 \u0644\u0644\u0639\u0644\u0648\u0645 \u0627\u0644\u0635\u0631\u0641\u0629 (\u0627\u0628\u0646 \u0627\u0644\u0647\u064a\u062b\u0645) \u0631\u0633\u0627\u0644\u0629 \u0627\u0644\u0645\u0627\u062c\u0633\u062a\u064a\u0631 \u0627\u0644\u0645\u0648\u0633\u0648\u0645\u0629 (\u0627\u0645\u062a\u0632\u0627\u0632 \u0635\u0628\u063a\u0629….<\/i>\u0627\u0644\u0645\u0632\u064a\u062f<\/span><\/a><\/p>\n","protected":false},"author":25,"featured_media":27951,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"categories":[44,7,16],"tags":[23],"class_list":["post-27950","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-44","category-7","category-16","tag-ihcoedu"],"modified_by":"ihcoedu","_links":{"self":[{"href":"https:\/\/ihcoedu.uobaghdad.edu.iq\/index.php?rest_route=\/wp\/v2\/posts\/27950","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ihcoedu.uobaghdad.edu.iq\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ihcoedu.uobaghdad.edu.iq\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ihcoedu.uobaghdad.edu.iq\/index.php?rest_route=\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/ihcoedu.uobaghdad.edu.iq\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=27950"}],"version-history":[{"count":0,"href":"https:\/\/ihcoedu.uobaghdad.edu.iq\/index.php?rest_route=\/wp\/v2\/posts\/27950\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ihcoedu.uobaghdad.edu.iq\/index.php?rest_route=\/wp\/v2\/media\/27951"}],"wp:attachment":[{"href":"https:\/\/ihcoedu.uobaghdad.edu.iq\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=27950"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ihcoedu.uobaghdad.edu.iq\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=27950"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ihcoedu.uobaghdad.edu.iq\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=27950"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}