The synthesis of magnetic X zeolites and their uptake of fluoride ion and lead ion

The synthesis of magnetic X zeolites and their uptake of fluoride ion and lead ion In order to solve the problem of the separation of zeolites powder from disposal solution, the magnetic zeolites are synthe- sized by hydrothermal method. A series of zeolite samples with different iron content are reduced and characterized by X-ray diffraction, scanning electron microscopy, infrared spectroscopy, thermogravimetric and differential thermal analysis and magnetism testing. The results show that the crystalline structures of iron-incorporated zeolites are well integrated. When iron content in zeolites is low, the structure of iron-incorporated X zeolites is not changed, but it transforms to the same structure as 4A zeolites when the iron content is high. The iron-incorporated zeolites still maintain crystalline structure on hydrogen reduction below 700 °C, and their structures are destroyed completely when the reduction temperature rises up to 800 °C. The adsorptive experiments of fluoride ion and lead ion are carried out. The results show that the adsorption capac - 2+ ity of fluoride ions decreases slightly, but that of Pb reaches the maximum when iron content is 2.98%. The magnetization − 2+ process has little effect on the adsorption of F and Pb . Keywords X zeolites · Magnetism · Hydrothermal method · Adsorption Introduction framework by iron-incorporated hetero-atom zeolites. The catalysts produced by the last method http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Environmental Science and Technology Springer Journals

The synthesis of magnetic X zeolites and their uptake of fluoride ion and lead ion

Loading next page...
 
/lp/springer_journal/the-synthesis-of-magnetic-x-zeolites-and-their-uptake-of-fluoride-ion-GCSoHzj50i
Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2018 by Islamic Azad University (IAU)
Subject
Environment; Environment, general; Environmental Science and Engineering; Environmental Chemistry; Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution; Soil Science & Conservation; Ecotoxicology
ISSN
1735-1472
eISSN
1735-2630
D.O.I.
10.1007/s13762-018-1732-9
Publisher site
See Article on Publisher Site

Abstract

In order to solve the problem of the separation of zeolites powder from disposal solution, the magnetic zeolites are synthe- sized by hydrothermal method. A series of zeolite samples with different iron content are reduced and characterized by X-ray diffraction, scanning electron microscopy, infrared spectroscopy, thermogravimetric and differential thermal analysis and magnetism testing. The results show that the crystalline structures of iron-incorporated zeolites are well integrated. When iron content in zeolites is low, the structure of iron-incorporated X zeolites is not changed, but it transforms to the same structure as 4A zeolites when the iron content is high. The iron-incorporated zeolites still maintain crystalline structure on hydrogen reduction below 700 °C, and their structures are destroyed completely when the reduction temperature rises up to 800 °C. The adsorptive experiments of fluoride ion and lead ion are carried out. The results show that the adsorption capac - 2+ ity of fluoride ions decreases slightly, but that of Pb reaches the maximum when iron content is 2.98%. The magnetization − 2+ process has little effect on the adsorption of F and Pb . Keywords X zeolites · Magnetism · Hydrothermal method · Adsorption Introduction framework by iron-incorporated hetero-atom zeolites. The catalysts produced by the last method

Journal

International Journal of Environmental Science and TechnologySpringer Journals

Published: Jun 4, 2018

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

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

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

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.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off