Adsorption of Methylene Blue by Carbon
23.1 هزار بار بازدید -
4 سال پیش
-
(Physical Chemistry I) The purpose
(Physical Chemistry I) The purpose of this experiment is to determine the surface area of carbon powder by studying the adsorption of the water soluble dye methylene blue on the powder.
Adsorption is the sticking of molecules from the gas or liquid phase onto the surface of a solid. A molecule that undergoes adsorption is referred to as the adsorbate, and the solid is the adsorbent. Another process, absorption refers to a phenomenon where something is taken up throughout -such as a sponge absorbs water. Adsorption refers to a phenomenon where something is taken up only at the surface -such as carbon powder adsorbs a dye. The general term for absorption and adsorption is sorption.
Porosity is related to the empty space within a material. For example in geology a porous material might be considered to be a rock where empty spaces could contain air or water. Porosity is important in many areas of science and technology including but not limited to: geology, ceramics, metallurgy, catalysis, materials science, pharmaceuticals, soil science, and industrial processing. As indicated previously, porous materials such as porous carbons can be used for purification of air and water because organic molecules can be trapped within pores while air or water can pass through. A carbon used for water purification will have a certain adsorption limit per gram of carbon based on many organic molecules may be trapped or held within the porous material. In this experiment we are exploring the limit to of a specific carbon powder to retain dye molecule removed from an aqueous environment.
Adsorption is the sticking of molecules from the gas or liquid phase onto the surface of a solid. A molecule that undergoes adsorption is referred to as the adsorbate, and the solid is the adsorbent. Another process, absorption refers to a phenomenon where something is taken up throughout -such as a sponge absorbs water. Adsorption refers to a phenomenon where something is taken up only at the surface -such as carbon powder adsorbs a dye. The general term for absorption and adsorption is sorption.
Porosity is related to the empty space within a material. For example in geology a porous material might be considered to be a rock where empty spaces could contain air or water. Porosity is important in many areas of science and technology including but not limited to: geology, ceramics, metallurgy, catalysis, materials science, pharmaceuticals, soil science, and industrial processing. As indicated previously, porous materials such as porous carbons can be used for purification of air and water because organic molecules can be trapped within pores while air or water can pass through. A carbon used for water purification will have a certain adsorption limit per gram of carbon based on many organic molecules may be trapped or held within the porous material. In this experiment we are exploring the limit to of a specific carbon powder to retain dye molecule removed from an aqueous environment.
4 سال پیش
در تاریخ 1399/08/06 منتشر شده
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