Effect of pH and ionic stre ngth on p hosphorus remova l from aqu eous solution by TiO۲ nan oparticale modified

Effect of pH and ionic strength on Pho sphorus (P) removal from aqueou s solutions was investigated using TiO۲ modified. The adsorption capacities were calcula ted to evaluated effectiveness of TiO۲ nanopartic les modified. Sorption capacity for TiO۲ modified by Chitosan (۴۴.۴۱ m g g–۱) was greater than other modificatoins. The result of pH at zero point charge (pHZPC) showed tha t the surface charge o f the TiO۲ modified was negativ e. Accordi ng to obtained results, wh en ionic strength increas ed removal of P increas ed at a con stant pH. Fi nally, the highe st percentag e of remova l P at all of the pHs wa s in ionic strength equal to ۰.۱.

کلیدواژه ها:

Nanopaticles ، remov al ، ionic strength ، pHZP C ، phosphor us.