{"product_id":"adsorption-of-actinides-von-fawwaz-khalili-und-ahmad-k-mohammad","title":"ADSORPTION OF ACTINIDES","description":"\u003cp\u003eShorttitle Humic Acid (HA) is an important constituent of soil  organic matter which was the subject of several environmental studies. In  this work the adsorption isotherms of Thorium(IV) and Uranium(VI) onto Azraq Humic acid  (AZHA) were studied at different temperature and pH values. The results  indicate that Thorium(IV) has higher adsorptivity  than Uranium(VI). The increasing of pH resulted in  higher adsorptivity of Actinides. In contrast to heavy metals and Lanthanides (entropy  driven), the adsorption of Actinides on HA was found  to be exothermic and so enthalpy driven. This leads  to the hypothesis that Thorium(IV) and Uranium(IV)  are encapsulated in the interior of HA helix with  their water of hydration because the interior is  full with water. However, heavy metals and  Lanthanides are adsorbed on the exterior of HA helix.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783844310580\"\u003e\u003ch3\u003eADSORPTION OF Th(IV) AND U(VI) ONTO AZRAQ HUMIC ACID\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783844310580","offer_id":39495911243869,"sku":"9783844310580","price":49.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/efd69ea4-ccc3-403a-a8bf-7c76418fee4e.jpg?v=1769495089","url":"https:\/\/shop.autorenwelt.de\/products\/adsorption-of-actinides-von-fawwaz-khalili-und-ahmad-k-mohammad","provider":"Autorenwelt Shop","version":"1.0","type":"link"}