Back to Search
Start Over
Two-Step Elution Recovery of Cyanide Platinum Using Functional Metal Organic Resin
- Source :
- Molecules, Vol 24, Iss 15, p 2779 (2019), Molecules, Volume 24, Issue 15
- Publication Year :
- 2019
- Publisher :
- MDPI AG, 2019.
-
Abstract
- A novel functional ion-exchange/adsorption metal organic resin (MOR), TEBAC-HKUST-1, was prepared and characterized. Ethanedithiol was used as the grafting agent to introduce thiol groups onto HKUST-1, and 4-vinylbenzyl chloride was then grafted onto SH-HKUST-1 using thiol groups. Finally, the quaternary ammonium functional group was immobilized onto the carrier by performing a quaternization reaction. The structure and property of TEBAC-HKUST-1 MOR were characterized by TGA, N2 adsorption&ndash<br />desorption, FTIR, SEM, and XRD. TEBAC-HKUST-1 MOR was used to remove metal cyanide complexes from wastewater. The adsorption was rapid, and the metal cyanide complexes including Pt(CN)42&minus<br />Co(CN)63&minus<br />Cu(CN)32&minus<br />and Fe(CN)63&minus<br />were removed in 30 min. TEBAC-HKUST-1 MOR exhibited a high stability in neutral and weak basic aqueous solutions. Furthermore, Pt(II) could be efficiently recovered through two-step elution. The recovery rate of Pt(II) for five cycles were over 92.0% in the mixture solution containing Pt(CN)42&minus<br />The kinetic data were best fitted with the pseudo second-order model. Moreover, the isothermal data were best fitted with the Langmuir model. The thermodynamic results show that the adsorption is a spontaneous and exothermic process. TEBAC-HKUST-1 MOR not only exhibited excellent ability for the rapid removal of metal cyanide complexes, but also provided a new idea for the extraction of noble metals from cyanide-contaminated water.
- Subjects :
- Cyanide
Pharmaceutical Science
chemistry.chemical_element
Wastewater
Article
Analytical Chemistry
Water Purification
Metal
lcsh:QD241-441
symbols.namesake
chemistry.chemical_compound
recovery
Adsorption
lcsh:Organic chemistry
Coordination Complexes
platinum cyanide
Drug Discovery
Organometallic Compounds
Humans
Physical and Theoretical Chemistry
Aqueous solution
Cyanides
Elution
Organic Chemistry
Langmuir adsorption model
Ethanedithiol
Hydrogen-Ion Concentration
metal organic resin
Kinetics
chemistry
Chemistry (miscellaneous)
visual_art
symbols
visual_art.visual_art_medium
Molecular Medicine
Thermodynamics
Ion Exchange Resins
Platinum
Palladium
Water Pollutants, Chemical
Nuclear chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 14203049
- Volume :
- 24
- Issue :
- 15
- Database :
- OpenAIRE
- Journal :
- Molecules
- Accession number :
- edsair.doi.dedup.....850503855528cc5a9dad4d759ac30aca