Adsorption Behavior of Platinum Group Metals (Pd, Pt, Rh) onNonylthiourea-Coated Fe3O4 Nanoparticles
2006 (English)In: Separation science and technology (Print), ISSN 0149-6395, E-ISSN 1520-5754, Vol. 41, 909-923 p.Article in journal (Refereed) Published
Magnetite nanoparticles coated with nonylthiourea (NTH) were synthesizedand analyzed for the separation and recovery of platinum group metals (PGMs) fromdiluted aqueous chloride solutions. Physical characterizations of the coated nanoparticleswere performed by Transmission Electron Microscopy (TEM), ThermogravimetricAnalysis (TGA) and FT-IR Spectrometry. Separation efficiency of the coatednanoparticles and the equilibrium adsorption isotherm of PGMs were investigated.The maximum adsorption was attained in less than 30 minutes, and the maximumloading capacity of NTH-coated Fe3O4 nanoparticles for Pt(IV) and Pd(II) was determinedto be 10.7 and 8.1 mg g21, respectively. The recovery of PGMs from the loadednanoparticles was examined using different eluting solutions, including HNO3,thiourea, and NaClO4.
Place, publisher, year, edition, pages
2006. Vol. 41, 909-923 p.
Adsorption, platinum group metals, magnetite nanoparticles, nonylthiourea
IdentifiersURN: urn:nbn:se:kth:diva-24724DOI: 10.1080/01496390600588952ISI: 000236741500008ScopusID: 2-s2.0-33646365402OAI: oai:DiVA.org:kth-24724DiVA: diva2:353018
QC 201009232010-09-232010-09-232011-11-08Bibliographically approved