{"id":33249,"date":"2020-09-14T14:41:33","date_gmt":"2020-09-14T11:41:33","guid":{"rendered":"http:\/\/ihcoedu.uobaghdad.edu.iq\/?p=33249"},"modified":"2020-09-16T11:41:06","modified_gmt":"2020-09-16T08:41:06","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-24","status":"publish","type":"post","link":"https:\/\/ihcoedu.uobaghdad.edu.iq\/?p=33249","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 \u062a\u062d\u0636\u064a\u0631 \u0627\u0644\u062c\u0627\u0631\u0643\u0648\u0644 \u0627\u0644\u0646\u0628\u0627\u062a\u064a \u0645\u0646 \u0642\u0634\u0648\u0631 \u062d\u0628\u0648\u0628 \u062f\u062e\u0646 \u0628\u0631\u0648\u0633\u0648 \u0648\u0627\u0633\u062a\u0639\u0645\u0627\u0644\u0647 \u0644\u0627\u0645\u062a\u0632\u0627\u0632 \u0635\u0628\u063a\u0629 \u0639\u0636\u0648\u064a\u0629"},"content":{"rendered":"

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\u0627\u0644\u0627\u0646\u0638\u0645\u0629 \u0642\u064a\u062f \u0627\u0644\u062f\u0631\u0627\u0633\u0629 \u0648\u0639\u0646\u062f \u062c\u0645\u064a\u0639 \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629\u00a0 \u0643\u0645\u0627 \u062a\u0645 \u062d\u0633\u0627\u0628 \u0637\u0627\u0642\u0629 \u0627\u0644\u062a\u0646\u0634\u064a\u0637 \u0644\u0643\u0644 \u0646\u0638\u0627\u0645 \u062d\u064a\u062b \u0643\u0627\u0646\u062a \u0627\u0642\u0644 \u0645\u0646(40 kj\/mol)\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0645\u062a\u0632\u0627\u0632 \u0635\u0628\u063a\u0629 \u0627\u0644\u0643\u0648\u0646\u063a\u0648\u00a0 \u0627\u0644\u0627\u062d\u0645\u0631 \u0648\u0644\u0643\u0644\u0627 \u0627\u0644\u0633\u0637\u062d\u064a\u0646 \u0627\u0644\u0645\u0627\u0632\u064a\u0646ACIPE) ,( AC \u0645\u0645\u0627 \u064a\u0628\u064a\u0646 \u062a\u0641\u0636\u064a\u0644( \u0627\u0644\u0627\u0645\u062a\u0632\u0627\u0632 \u0627\u0644\u0641\u064a\u0632\u064a\u0627\u0626\u064a) \u0628\u064a\u0646\u0645\u0627 \u0643\u0627\u0646\u062a \u0623\u0643\u0628\u0631 \u0645\u0646 (40 kj\/mol) \u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0645\u062a\u0632\u0627\u0632 \u0635\u0628\u063a\u0629 \u0627\u0644\u0643\u0648\u0646\u063a\u0648 \u0627\u0644\u0627\u062d\u0645\u0631\u00a0 \u0639\u0644\u0649 \u0627\u0644\u0633\u0637\u062d \u0627\u0644\u0645\u0627\u0632(ACIAM )\u00a0 \u0648\u0647\u0630\u0627 \u064a\u062f\u0644 \u0639\u0644\u0649 \u0623\u0646 \u0627\u0644\u0627\u0646\u0638\u0645\u0629 \u062a\u0641\u0636\u0644 \u062d\u062f\u0648\u062b ( \u0627\u0644\u0627\u0645\u062a\u0632\u0627\u0632 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a).<\/span><\/h4>\n

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    <\/h4>\n

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    \n

    preparation , activation\u00a0 and characterization of plant charcoal from proso millet grain husks using\u00a0 for organic dye adsorption<\/span><\/h3>\n

    By Rusul Abdul Salam FarajHammoud<\/span><\/h3>\n

    Supervised by Asst.prof.Dr. Ahmed Mohammed Abbas<\/span><\/h3>\n

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

    This study aimed to use plant residues from the millet grain husks (Proso type) available locally in the Iraqi market in the production of active carbon surfaces (AC) and loaded by iron particles with chemical treatment by concentrated materials (hydrogen peroxide or ammonia) to produce modified carbon surfaces (ACIPE and ACIAM). In order to ensure the preparation of the surfaces and the changes that have been developed, use it to diagnose these three prepared surfaces (ACIAM, ACIPE, AC).In order to ensure the preparation of surfaces and the changes that have been made to them, a number of techniques have been used in the diagnosis of these three prepared surfaces (ACIAM ACIPE, AC), including a Fourier tranform infrared technique\u00a0 (FT-IR), field emission scanning electron microscopy (FESEM) and energy dispersion X-ray analysis\u00a0 (EDX ) and surface area designation (BET) method<\/span><\/h3>\n

    In addition to that, a number of physical properties were measured for all surfaces, which are (fixed carbon ratio, moisture ratio, volatile matter ratio, ash ratio, acid soluble ratio, water-soluble ratio, acidity of surfaces, and pH at zero point charge and porosity) and through These characteristics have been known about the quality and effectiveness of surfaces and their application in the field of adsorption,<\/span><\/h3>\n

    For the purpose of determining the optimal conditions for the Congo red (CR) dye adsorption process on each of the studied carbon surfaces by studying the effect of several factors (adsorbent dose, equilibrium time, dye initial\u00a0 concentration, temperature). Where we note the increase of the amount of dye adsorbed\u00a0 with increasing time up to the equilibrium stage, at which time the equilibrium time of the dye is set on a surface where it was found that the time required to reach equilibrium state using the first surface (AC ) is (45 min), as for both\u00a0 surfaces (ACIPE) and (ACIAM) are\u00a0 these\u00a0 (60 min) on the one hand,On the other hand, it was found that the amount of\u00a0 dye adsorbed\u00a0 on all surfaces increases with increasing temperature, which indicates that the nature of the adsorption process is endothermic<\/span><\/h3>\n

    A kinetic study of the adsorption process of the Congo red dye was carried out at different temperatures by applying a number of kinematic models (psedu first order , psedu second order, Weber-Morris equation), and the results showed that it followed the psedu\u00a0 second order model for all the systems under study and at all temperatures .the activation energy was calculated for each system, as it was less than (40 kj \/ mol)for the Congo red dye adsorption systems for both surfaces (AC, ACIPE), which shows a preference for physical adsorption while it was greater than (40 kj \/ mol) for the Congored\u00a0 dye adsorption systems on surface (ACIAM) This indicates that systems prefer chemical adsorption to occur<\/span><\/h3>\n

    The adsorption equilibirium was studied with different initial\u00a0 concentrations\u00a0 at different temperatures . The adsorption systems of the Congo red dye were classified on all surfaces of the type (S) according to the Gielles classification, in which the adsorption of dye molecules adsorbed vertically or diagonally onto the adsorbent surface ,Several adsorption models (Langmuir, Temkin, Freundlich, Dubinin-Radushkevich ) have been tested on adsorption systems, Through the application of these isotherms, it has been shown that the best isotherm to describe the (CR) dye\u00a0 adsorption process\u00a0 on each surface (AC, ACIPE, ACIAM) is Freundlich isotherm , In conclusion, the Freundlich isotherm model is more suitable for the systems under study, and less is an Temkin model, and the lowest model is the Langmuir model, followed by the Dubinin-Radushkevich model<\/span><\/h3>\n

    Also, the thermodynamic functions of the adsorption systems under study were calculated, where the positive values \u200b\u200bof the enthalpy (\u0394H) indicated that the reaction is endothermic and the positive values \u200b\u200bof the free gibbes energy are positive and low for each of the\u00a0 surfaces (AC, ACIAM), which indicates the non-spontaneity of the adsorption process, but these values It decreases with increasing the temperature to become more spontaneity, and this corresponds to the adsorption results for the two surfaces. As for the negative\u00a0 values (\u0394G)\u00a0 OF \u200b\u200b(ACIPE) surface, we notice the spontaneity and easy dye adsorption on this surface (ACIPE) as well as for the surface (ACIAM) at high temperatures. As the spontaneity of the occurrence of the adsorption process increases with increasing temperature, positive values of (\u0394S) \u200b\u200bshow the increase in randomness, and negative values \u200b\u200bindicate the decrease in randomness<\/span><\/h3>\n

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

    \u00a0 \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 (\u062a\u062d\u0636\u064a\u0631 , \u062a\u0646\u0634\u064a\u0637 \u0648\u062a\u0634\u062e\u064a\u0635….<\/i>\u0627\u0644\u0645\u0632\u064a\u062f<\/span><\/a><\/p>\n","protected":false},"author":25,"featured_media":33252,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"categories":[44,7,16],"tags":[23,47],"class_list":["post-33249","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-44","category-7","category-16","tag-ihcoedu","tag-chem"],"modified_by":"ihcoedu","_links":{"self":[{"href":"https:\/\/ihcoedu.uobaghdad.edu.iq\/index.php?rest_route=\/wp\/v2\/posts\/33249","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=33249"}],"version-history":[{"count":0,"href":"https:\/\/ihcoedu.uobaghdad.edu.iq\/index.php?rest_route=\/wp\/v2\/posts\/33249\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ihcoedu.uobaghdad.edu.iq\/index.php?rest_route=\/wp\/v2\/media\/33252"}],"wp:attachment":[{"href":"https:\/\/ihcoedu.uobaghdad.edu.iq\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=33249"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ihcoedu.uobaghdad.edu.iq\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=33249"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ihcoedu.uobaghdad.edu.iq\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=33249"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}