Article Detail — Pakistan Science Abstracts

Choose Theme

Theme 1 — Green & Gold

No Detail Found!
4-Aminoacetophenone Intercalated CoAl Layered Double Hydroxides: Synthesis, Characterization and Adsorptive Removal of Cd(II) Ions from Water Samples
Author(s)
Abdul Rafay Bhatti Institute of Chemistry, University of Sindh, Jamshoro, Pakistan.
Ali Nawaz Siyal Institute of Chemistry, University of Sindh, Jamshoro, Pakistan.
Qadeer Khan Panhwar Institute of Chemistry, University of Sindh, Jamshoro, Pakistan.
Abdul Majid Channa Institute of Chemistry, University of Sindh, Jamshoro, Pakistan.
Muhammad Hassan Agheem Centre for Pure & Applied Geology, Sindh, Jamshoro 76080, Pakistan
Adnan Ahmed Centre for Environmental Science, University of Sindh, Jamshoro, Pakistan
Muhammad Yar Khuhawar Institute of Chemistry, University of Sindh, Jamshoro, Pakistan
Abstract
In the present study, CoAl-NO3 Layered Double Hydroxides (CoAl-NO3-LDH) was synthesized and an enolate anion of 4-Aminoacetophenone (AAP) was intercalated into LDH following the reconstruction approach. The CoAl-NO3-LDH and CoAl-AAP-LDH were characterized by Fourier-Transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), scanning electron microscope (SEM) and energy dispersive X-ray (EDX) analyses. CoAl-AAP-LDH worked well for adsorption of Cd(II) ions from aqueous samples at optimum pH 7, adsorbent dosage 25 mg, concentration of Cd(II) ions 25 mg L-1 and shaking time 20 min at 25 °C. Different isotherms such as Langmuir, Freundlich and Dubinin-Radushkevich (D-R) isotherms fitted well to adsorption data with correlation coefficient (R2) of 0.998, 0.982 and 0.992, respectively. Monolayered (Qm) and multi-layered (KF) capacities of CoAl-AAP-LDH for adsorption of Cd(II) ions were calculated and found to be 34.40 and 19.44 mg g-1, respectively. Sorption energy was calculated and found to be 9.13 kJ mol-1, indicating chemisorption or ion exchange sorption mechanism. The method worked well for the adsorption of Cd(II) ions from wastewater samples.
Publication Details
Page(s) 140-149
DOI DOI not available
Published Journal: Pakistan Journal of Analytical & Environmental Chemistry, Volume: 22, Issue: 1, Year: 2021
Keywords
Adsorption isotherms CdII ions Enolate ions Intercalation Layered Double Hydroxides
References
References are not available for this document.
Citations
Citations are not available for this document.
0

Citations

0

Downloads

62

Views

Copyright ©  PASTIC National Center, Islamabad www.pastic.gov.pk