NDLI: Phosphate adsorption on uncoated and humic acid-coated iron oxides

Content Provider	Springer Nature Link
Author	Wang, Hui Zhu, Jun Fu, Qingling Hong, Can Hu, Hongqing Violante, Antonio
Copyright Year	2016
Abstract	The phosphate adsorption on natural adsorbents is of particular importance in regulating the transport and bioavailability of phosphates in environmental system. In soils, oxides are often associated with organic matter and form mineral-organic complexes. The aim of the present paper was to investigate the mechanisms of phosphate adsorption on these complexes.Phosphate adsorption on uncoated and humic acid (HA)-coated iron oxide complexes was investigated at different ionic strengths and pH by isotherm experiments and attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy.Results showed that HA-coated iron oxide complexes caused a decrease in the specific surface area (SSA) and the isoelectric point (IEP) of oxides. Phosphate adsorption on iron oxides was insensitive to changes of ionic strength, while it increased on the complexes with increasing ionic strength. The presence of HA decreased the maximum adsorption and the affinity of phosphate on the complexes. The zeta potential of phosphate-bound iron oxides linearly reduced with the increment of phosphate surface coverage, while the zeta potential of complexes with adsorbed phosphate kept at the same level. ATR-FTIR analysis suggested the formation of phosphate-metal complexation. The presence of HA promotes the formation of the monodentate phosphate complexes at pH 4.5 and significantly influenced phosphate species at pH 8.5.The amount of phosphate adsorbed was reduced, and the phosphate speciation was also influenced when phosphate was adsorbed on HA-coated iron oxide complexes compared with phosphate adsorption on pure goethite and hematite.
Starting Page	1911
Ending Page	1920
Page Count	10
File Format	PDF
ISSN	14390108
Journal	Journal of Soils and Sediments
Volume Number	16
Issue Number	7
e-ISSN	16147480
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-03-04
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Phosphate adsorption Goethite Hematite In situ ATR-FTIR spectroscopy Surface complexation Zeta potential Soil Science & Conservation Environment Environmental Physics
Content Type	Text
Resource Type	Article
Subject	Stratigraphy Earth-Surface Processes

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Adsorption of phosphate on pure and humic acid-coated ferrihydrite

Antimony (V) Adsorption at the Hematite–Water Interface: A Macroscopic and In Situ ATR-FTIR Study

In situ ATR-FTIR study on the adhesion of Pseudomonas putida to Red soil colloids

Phosphate-induced aggregation kinetics of hematite and goethite nanoparticles

Iron oxidation in different types of groundwater of Western Siberia

Comparison of thermal and chemical stability of Cu–humic complexes

Sorption of humic acid on Fe oxides, bacteria, and Fe oxide-bacteria composites

Effect of clay colloids on the zeta potential of Fe/Al oxide-coated quartz: a streaming potential study

Iron oxide mineralogy and stable iron isotope composition in a Gleysol with petrogleyic properties

Phosphate adsorption on uncoated and humic acid-coated iron oxides

Similar Documents

Adsorption of phosphate on pure and humic acid-coated ferrihydrite

Antimony (V) Adsorption at the Hematite–Water Interface: A Macroscopic and In Situ ATR-FTIR Study

In situ ATR-FTIR study on the adhesion of Pseudomonas putida to Red soil colloids

Phosphate-induced aggregation kinetics of hematite and goethite nanoparticles

Iron oxidation in different types of groundwater of Western Siberia

Comparison of thermal and chemical stability of Cu–humic complexes

Sorption of humic acid on Fe oxides, bacteria, and Fe oxide-bacteria composites

Effect of clay colloids on the zeta potential of Fe/Al oxide-coated quartz: a streaming potential study

Iron oxide mineralogy and stable iron isotope composition in a Gleysol with petrogleyic properties

Phosphate adsorption on uncoated and humic acid-coated iron oxides