TY - JOUR
T1 - Removal of lead ions using porous hydroxyapatite monoliths synthesized from gypsum waste
AU - Furuta, Sachiko
AU - Katsuki, Hiroaki
AU - Komarneni, Sridhar
PY - 2000
Y1 - 2000
N2 - Porous hydroxyapatite (HAp) monoliths synthesized from gypsum mold waste were used for removing lead ions from aqueous solution. The gypsum waste was crushed into small blocks and converted directly to porous HAp pieces in a 0.5 mol/dm3 diammonium hydrogen phosphate solution at 55 and 80°C. Porous structures were effected by reaction temperatures. Twenty and 40 mg of lead ions were removed from 100 cm3 aqueous solution by stirring with 1.0 g porous HAp monoliths at pH 3 for 5 to 30 min. HAp was dissolved in the pH 3 acidic solution, but Pb-Cl apatite, which was formed from Pb2+, PO43- and Cl-, was stable in the pH 3 acidic solution.
AB - Porous hydroxyapatite (HAp) monoliths synthesized from gypsum mold waste were used for removing lead ions from aqueous solution. The gypsum waste was crushed into small blocks and converted directly to porous HAp pieces in a 0.5 mol/dm3 diammonium hydrogen phosphate solution at 55 and 80°C. Porous structures were effected by reaction temperatures. Twenty and 40 mg of lead ions were removed from 100 cm3 aqueous solution by stirring with 1.0 g porous HAp monoliths at pH 3 for 5 to 30 min. HAp was dissolved in the pH 3 acidic solution, but Pb-Cl apatite, which was formed from Pb2+, PO43- and Cl-, was stable in the pH 3 acidic solution.
UR - http://www.scopus.com/inward/record.url?scp=0033904297&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0033904297&partnerID=8YFLogxK
U2 - 10.2109/jcersj.108.1255_315
DO - 10.2109/jcersj.108.1255_315
M3 - Article
AN - SCOPUS:0033904297
VL - 108
SP - 315
EP - 317
JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
SN - 1882-0743
IS - 3
ER -