سنتزو بررسی کامپوزیت های پلی پیرول /پودر پوست انارو کاربرد آن برای حذف فلزات سنگین از آب

در اﯾﻦ ﻣﻄﺎﻟﻌﻪ ﭘﻠﯽ ﭘﯿﺮول ppy و ﮐﺎﻣﭙﻮزﯾﺖ ﻫﺎی ﭘﻠﯽ ﭘﯿﺮول / ﭘﻮدر ﭘﻮﺳﺖ اﻧﺎر ppy/ppp pomegranate peel powder از ﻃﺮﯾﻖ ﭘﻠﯿﻤﺮﯾﺰاﺳﯿﻮن اﮐﺴﯿﺪاﺗﯿﻮ ﭘﯿﺮول ﺗﻬﯿﻪ ﺷﺪ و اﺛﺮات ﭘﻮدر ﭘﻮﺳﺖ اﻧﺎر ﺑﺮ روی ﭘﻠﯽ ﭘﯿﺮول و ﮐﺎﻣﭙﻮزﯾﺖ ﻫﺎی آن ﺑﺮرﺳﯽ ﺷﺪ. ﺳﺎﺧﺘﺎر ﭘﻠﯽ ﭘﯿﺮول ppy و ﮐﺎﻣﭙﻮزﯾﺖ ﻫﺎی ﭘﻠﯽ ﭘﯿﺮول / ﭘﻮدر ﭘﻮﺳﺖ اﻧﺎر ﺑﻪ وﺳﯿﻠﻪ ﻃﯿﻒ ﺳﻨﺠﯽ ﻓﻮﺗﻮاﻟﮑﺘﺮون اﺷﻌﻪ اﯾﮑﺲ xps و روش آﻧﺎﻟﯿﺰ ﮔﺮﻣﺎوزﻧﯽ tga و ﻃﯿﻒ ﺳﻨﺠﯽ زﯾﺮﻗﺮﻣﺰ ir ﺷﻨﺎﺳﺎﯾﯽ ﺷﺪ. ﻣﯿﮑﺮوﺳﮑﻮپ اﻟﮑﺘﺮوﻧﯽ ﭘﻮﯾﺸﯽ sem ، ﺷﮑﻞ ﭘﻮدر ﭘﻮﺳﺖ اﻧﺎر را ﮐﺮوی و اﻧﺪازه ﻣﺘﻮﺳﻂ آﻧﻬﺎ را در ﺣﺪود 20-15 ﻣﯿﮑﺮوﻣﺘﺮ ﻧﺸﺎن داده اﺳﺖ. ﺧﻮاص ﮔﺮﻣﺎﯾﯽ و ﺗﺨﺮﯾﺐ ﺣﺮارﺗﯽ ﭘﻠﯽ ﭘﯿﺮول و ﮐﺎﻣﭙﻮزﯾﺖ ﻫﺎی آن ﺑﺎ اﺳﺘﻔﺎده از آﻧﺎﻟﯿﺰ ﮔﺮﻣﺎ وزن ﺳﻨﺠﯽ tga ﻣﻄﺎﻟﻌﻪ ﺷﺪ. در اﯾﻦ ﭘﮋوﻫﺶ، ﺑﺮای ﺟﺬب ﺳﻄﺤﯽ ﻧﯿﮑﻞ ii از ﻣﺤﻠﻮل آﺑﯽ ﺑﻪ وﺳﯿﻠﻪ ﭘﻠﯽ ﭘﯿﺮول و ﮐﺎﻣﭙﻮزﯾﺖ ﭘﻠﯽ ﭘﯿﺮول/ ﭘﻮدر ﭘﻮﺳﺖ اﻧﺎر، ﺷﺎﺧﺼﻬﺎی ﻣﻮﺛﺮ ﺑﺮ ﻓﺮآﯾﻨﺪ ﺟﺬب ﻣﺎﻧﻨﺪ ph ،ﻣﻘﺪار ﺟﺎذب، زﻣﺎن ﺗﻤﺎس و ﻏﻠﻈﺖ اوﻟﯿﻪ ﯾﻮن ﻧﯿﮑﻞ ﺑﺮرﺳﯽ و ﺑﻬﯿﻨﻪ ﺷﺪه اﺳﺖ. ﻣﯿﺰان ﺗﻮاﻧﺎﯾﯽ ﮐﺎﻣﭙﻮزﯾﺖ ﻫﺎ در ﺟﺬب ﻓﻠﺰات ﺳﻨﮕﯿﻦ ﺑﺎ ﯾﮑﺪﯾﮕﺮ ﻣﻘﺎﯾﺴﻪ ﺷﺪ. و ﺑﻪ ﻣﻨﻈﻮر ﺑﺮرﺳﯽ ﻣﮑﺎﻧﯿﺴﻢ ﺟﺬب ﻧﯿﺰ از ﻫﻢ دﻣﺎﻫﺎی ﻻﻧﮕﻤﻮﯾﺮ و ﻓﺮوﻧﺪﻟﯿﭻ اﺳﺘﻔﺎده ﺷﺪ. داده ﻫﺎی ﺗﺠﺮﺑﯽ ﻧﺸﺎن داد، ﺟﺬب ﺳﻄﺤﯽ ﯾﻮن ﻧﯿﮑﻞ ﺑﺎ اﻓﺰاﯾﺶ ﻏﻠﻈﺖ اوﻟﯿﻪ اﯾﻦ ﯾﻮن در ﻣﺤﻠﻮل اﻓﺰاﯾﺶ ﻣﯽ ﯾﺎﺑﺪ. ﻫﻤﭽﻨﯿﻦ ﻧﺘﺎﯾﺞ ﻣﺸﺨﺺ ﮐﺮد، ﺑﯿﺶ از 83 % ﻇﺮﻓﯿﺖ ﺟﺬب ﯾﻮن ﻧﯿﮑﻞ، ﻧﻤﻮﻧﻪ ﻫﺎ ﺗﻘﺮﯾﺒﺎ در 60 د ﻗﯿﻘﻪ اوﻟﯿﻪ ﺟﺬب ﻗﺎﺑﻞ دﺳﺖ ﯾﺎﺑﯽ اﺳﺖ .

synthesis and investigation of polypyrrole / pomegranate peel powder composites and application for removal of heavy metals from water

polypyrrole ppy is an inherently conducting polymer icp which has different applications in sensors, batteries, separation membranes and corrosion protective of metals. synthesis of polypyrrole ppy with optimum properties and its remarkable conductivity has been studied. in this study, polypyrrole ppy and polypyrrole/pomegranate peel powder ppy/ppp composites were prepared by oxidative polymerization of pyrrole. the effects of pomegranate peel powder on the physical and chemical properties of polypyrrole and its composites were investigated. the structure of polypyrrole ppy and polypyrrole / pomegranate peel powder composites was characterized by x-ray photoelectron spectroscopy xps , thermal gravimetric analysis tga , and ftir. scanning electron microscopy has shown the shape of pomegranate peel powder spherical and their average size about 15-20 micrometers. the thermal properties and thermal degradation of polypyrrole and its composites were studied using thermogravimetric analysis tga . langmuir and freundlich isotherms were used to investigate the adsorption mechanism. experimental data showed that the adsorption of nickel ions increases with increasing the initial concentration of this ion in the solution. also, the results indicated that more than 83% of the nickel ion absorption capacity of the samples can be obtained in the first 60 minutes of absorption.