Fe3O4 magnetic nanoparticles coated with a TiO2 film (Fe3O4@TiO2 nanoparticles) have been synthesized by use of a modified Stöber method and used for removal of inorganic arsenic ions from aqueous solution. The high saturation magnetization of Fe3O4@TiO2 nanoparticles (45.56 emu g−1) facilitates their separation from aqueous solutions by use of a moderate magnetic field. The ζ-potential of Fe3O4@TiO2 nanoparticles was approximately 5.8. Sorption data were in good agreement with a pseudo-second-order kinetic model, with faster adsorption of As(III) (3.24 × 10−5 μg g−1 min−1) than As(V) (2.56 × 10−6 μg g−1 min−1). Adsorption isotherms were a good fit to the Freundlich isotherm model; adsorption capacity was 13.1 and 10.5 mg g−1 for As(III) and As(V), respectively. The effects on adsorption of such environmental conditions as pH, coexisting phosphate and sulfate ions, and humic acid were studied.
Research on Chemical Intermediates – Springer Journals
Published: Nov 22, 2013
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera