TY - JOUR
T1 - Post-synthetic modification of MIL-125 with bis-quinoline Mannich bases for removal of heavy metals from wastewater
AU - Abdelhameed, Reda M.
AU - Ismail, Rabab A.
AU - El-Naggar, Mohamed
AU - Zarie, Eman S.
AU - Abdelaziz, Ramzy
AU - El Sayed, Mardia T.
PY - 2019/5/1
Y1 - 2019/5/1
N2 - Ti-based metal-organic frameworks (NH2-MIL-125) were post synthetic modified through a facile strategy using bis-quinoline Mannich bases producing MIL-125-HQ. The modified material (MIL-125-HQ) was used as an absorbent for uptake of the heavy metals from wastewater. 1H NMR, FTIR, CHN and SEM-EDX analysis showed successful incorporation of hydroxyl quinoline moiety into the NH2-MIL-125 upon chemical reaction. The modified MIL-125-HQ showed high affinity for Pb(II) ions from water, and the amount of Pb(II) ions decrease sharply from 500 mg/L to 60 mg/L, within merely 30 min of exposure at pH7, 298 K and 2 g/L MIL-125-HQ. The maximum adsorption capacity of MIL-125-HQ for Pb(II), Cd(II), Cu(II) and Cr(III) was determined to be 262.1, 102.8, 66.9 and 53.9 mg/g, respectively.
AB - Ti-based metal-organic frameworks (NH2-MIL-125) were post synthetic modified through a facile strategy using bis-quinoline Mannich bases producing MIL-125-HQ. The modified material (MIL-125-HQ) was used as an absorbent for uptake of the heavy metals from wastewater. 1H NMR, FTIR, CHN and SEM-EDX analysis showed successful incorporation of hydroxyl quinoline moiety into the NH2-MIL-125 upon chemical reaction. The modified MIL-125-HQ showed high affinity for Pb(II) ions from water, and the amount of Pb(II) ions decrease sharply from 500 mg/L to 60 mg/L, within merely 30 min of exposure at pH7, 298 K and 2 g/L MIL-125-HQ. The maximum adsorption capacity of MIL-125-HQ for Pb(II), Cd(II), Cu(II) and Cr(III) was determined to be 262.1, 102.8, 66.9 and 53.9 mg/g, respectively.
KW - Heavy metals
KW - Mannich bases
KW - Titanium-metal organic frameworks
KW - Transamination
KW - Wastewater
UR - http://www.scopus.com/inward/record.url?scp=85058375462&partnerID=8YFLogxK
U2 - 10.1016/j.micromeso.2018.12.018
DO - 10.1016/j.micromeso.2018.12.018
M3 - Article
AN - SCOPUS:85058375462
SN - 1387-1811
VL - 279
SP - 26
EP - 36
JO - MICROPOROUS AND MESOPOROUS MATERIALS
JF - MICROPOROUS AND MESOPOROUS MATERIALS
ER -