TY  - JOUR
AV  - none
N1  - cited By 16
TI  - Fabrication and Evaluation of Cellulose-Alginate-Hydroxyapatite Beads for the Removal of Heavy Metal Ions from Aqueous Solutions
SP  - 1351
SN  - 09429352
PB  - De Gruyter Open Ltd
EP  - 1375
IS  - 9
N2  - In the present study, the potential of synthesized mixed cellulose, alginate and hydroxyapatite beads for the efficient removal of Ni (II) and Cu (II) ions from aqueous solutions was investigated. Cellulose, alginate and hydroxyapatite are known for their individual adsorption capacity. Beads were prepared in different ratios of these materials. The prepared beads were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM) and thermogravimetric analysis (TGA). FTIR and XRD analysis showed characteristic peaks assigned to cellulose, alginate and hydroxyapatite. Thermal stability was observed to increase with increase of hydroxyapatite percentage in beads. SEM images showed increased surface porosity and roughness with the increase of cellulose percentage. The prepared beads were used for the removal of Ni (II) and Cu (II) ions from aqueous solutions and the process was optimized with respect to pH, contact time, adsorbent dose and initial concentration of metal ions. The values of the coefficient of determination (R2) of the Langmuir and Freundlich adsorption model indicated that the adsorbed Cu (II) and Ni (II) ions form monolayer coverage on the adsorbent surface. In kinetic analysis, Pseudo-second-order model fitted the kinetic experimental data well, as it showed high R2 value; above 0.9990. © 2019 De Gruyter. All rights reserved.
ID  - scholars12261
Y1  - 2019///
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058775799&doi=10.1515%2fzpch-2018-1287&partnerID=40&md5=12f022479796ad3bc399201b0c91ab52
A1  - Jamshaid, A.
A1  - Iqbal, J.
A1  - Hamid, A.
A1  - Ghauri, M.
A1  - Muhammad, N.
A1  - Nasrullah, A.
A1  - Rafiq, S.
A1  - Shah, N.S.
JF  - Zeitschrift fur Physikalische Chemie
VL  - 233
ER  -