CORE
🇺🇦
make metadata, not war
Services
Services overview
Explore all CORE services
Access to raw data
API
Dataset
FastSync
Content discovery
Recommender
Discovery
OAI identifiers
OAI Resolver
Managing content
Dashboard
Bespoke contracts
Consultancy services
Support us
Support us
Membership
Sponsorship
Community governance
Advisory Board
Board of supporters
Research network
About
About us
Our mission
Team
Blog
FAQs
Contact us
Adsorption of Yttrium Ions on 3-Amino-5-Hydroxypyrazole Impregnated Bleaching Clay, a Novel Sorbent Material
Authors
M. F. Cheira
E. M. Eed
+8 more
M. Y. Hanfi
M. A. Hassanin
M. U. Khandaker
H. I. Mira
S. A. Mohamed
H. Osman
A. K. Sakr
M. I. Sayyed
Publication date
1 January 2021
Publisher
'MDPI AG'
Abstract
In this work, spent bleaching clay (SBC) was treated with ethyl acetate and impregnation with 3-amino-5-hydroxypyrazole (AHIBC) that utilized as economical sorbent material. The uptake of yttrium ions from aqueous solution using AHIBC was studied under batch process as a function of pH of the solution, contact time, adsorbent dosage, Yttrium ions concentration, and ambient temperature. The adsorption equilibrium was achieved at the value of pH = 6.0 and agitation time of 60 min at room temperature. The utmost adsorption capacity of Y(III) ions on AHIBC was 171.32 mg·g−1 . Kinetic, isotherm, and thermodynamic models were applied to the experimental data obtained. Adsorption follows a pseudo–second–order kinetic model, while the adsorption isotherm fits the Langmuir model. A negative value of Gibbs free energy ∆G◦ revealed that the adsorption of the Y ions on the AHIBC adsorbent was spontaneously in nature. In addition, the electrostatic interaction process between the metal ions and AHIBC was favorable. The negative value of ∆H◦ states that Y ions adsorption was an exothermic process. Desorption efficiency reduced from 97% to 80% after eight consecutive rounds. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.This study was funded by Taif University Researchers Supporting Project number (TURSP2020/157), Taif University Taif, Saudi Arabia
Similar works
Full text
Available Versions
Institutional repository of Ural Federal University named after the first President of Russia B.N.Yeltsin
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:elar.urfu.ru:10995/111687
Last time updated on 17/05/2022