Sy nthesis a nd usage Nano Org anic- Inorganic Ads orbent ba sed on ۴H - pyarn-۴-o ne (E۲) an d TEOS by Sol-Gel Method for Removal Ni(II)

In this work, ne nano heterogenated was synthesized and used as a no vel adsorbe nt for removing Ni(II) f rom aqueous solution. T he adsorpti on of Ni(II) onto nano- E۲ was studied as a function of cont act time, p H, Ionic strength, adsorbent mass, and temperature. The results showed that Ni(II) adsorption onto this adsorbent is strongly de pendent on pH and adso rbent mass, to a lesser extent, ionic strength. Kinetic data i ndicated that adsorption process achieved equili brium with in ۳۰ min and follows a pseudo-second-order rate equation, the adso rption data fit the Lang muir model and its line arized form well, togeth er with thermodynamic data indicate the spon aneous and endothermic nature of process. We synthesis new podands of ۴H-pyran-۴-one deivatives th at showed in scheme۱. T his new podand was na no heterogenated as a n ano adsorbe nt with TEOS in acidic condition.

کلیدواژه ها:

Nano adsorbent ، Sol-Gel ، aH-pyran-۴one ، Ni (II)