For Libraries For Publication Open Access Downloads About Us Contact Us
Paper Titles
Electrocatalytic Degradation of Cellulose Using Lead Dioxide Anode
p.1036
Experimental Study on Dynamic Simulation of Circulating Cooling Water Biofouling
p.1040
Optimal Design of Multistage Flash Desalination Process Based on the Modified Genetic Algorithm (MGA)
p.1044
The Analysis and Test about the Carrying Capacity of 2m Microwave Antenna for the Wind Load
p.1050
Effects of pH and Anion Species on Cr(VI) Removal by Magnetite
p.1055
Research on Prepared Technology and Tribological Behaviors of Ni-P-PTFE Composite Coating
p.1059
Effect of Boron or Cuprum on Phase Transition and Mechanical Properties of High-Strength Steels for Oil Tank
p.1063
A Primary Study on Preparation of Mullite with Solid Waste
p.1067
Catalysis Investigation of PET Depolymerization by Superacid SO42- /γ-Al2O3 under Microwave Irradiation
p.1073

Effects of pH and Anion Species on Cr(VI) Removal by Magnetite

Article Preview

Abstract:

Magnetite was prepared to remove poisonous hexavalent chromium [Cr(VI)] from aqueous solution. Batch experiments were conducted to measure the effects on removal of Cr(VI) of different parameters such as ionic strength, pH, and initial concentration. Results demonstrated that the removal of Cr(VI) on magnetite was decreased with the increase of pH in the range of 3.4-5.0, but independent of ionic strength. The removal percentage of Cr(VI) also decreased with the increase of Cr(VI) concentration in the range of 50-200 mg/L. At pH 3.5 and 5.0, the presence of SO42− retarded the removal of Cr(VI) via electrostatic interactions and/or competition for surfaces sites on magnetite. The pH of the medium and presence of anion species were critical factors in the removal of Cr(VI) from aqueous solution.

You might also be interested in these eBooks
Fundamental of Chemical Engineering View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 233-235)

Pages:

1055-1058

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.233-235.1055

Citation:

Cite this paper

Online since:

May 2011

Authors:

Hai Tao Ren, Shao Yi Jia, Yong Liu, Song Hai Wu, Yong Xu Xing, Yin Bao Zhang

Keywords:

Anion, Hexavalent Chromium, Magnetite, pH, Removal

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] M. Costa: Toxicol. Appl. Pharm. Vol. 188 (2003), pp.1-5

Google Scholar

[2] Y. M. Shi, X. H. Du, Q. J. Meng, S. W. Song, Z. T. Sui: J. Iron Steel Res. Int. Vol. 14 (2007), pp.12-15

Google Scholar

[3] Z. Reddad, C. Gerente, Y. Andres, P. Le Cloirec: Environ. Sci. Technol. Vol. 36 (2002), pp.2067-2073

DOI: 10.1021/es0102989

Google Scholar

[4] L. Dupont, E. Guillon: Environ. Sci. Technol. Vol. 37 (2003), pp.4235-4241

Google Scholar

[5] J. Hu, Lo, G. Chen: Langmuir Vol. 21 (2005), pp.11173-11179

Google Scholar

[6] S. S. Banerjee, D.-H. Chen: J. Hazard. Mater. Vol. 147 (2007), pp.792-799

Google Scholar

[7] L. Vayssieres, C. Chaneac, E. Tronc, J. P. Jolivet: J. Colloid. Intere. Sci. Vol. 205 (1998), pp.205-212

Google Scholar

[8] O. Ajouyed, C.Hurel, M. Ammari, L. Ben Allal, N. Marmier: J. Hazard. Mater. Vol. 174 (2010), pp.616-622

Google Scholar

[9] X. Han, Y. S. Wong, M. H. Wong, N. F. Y. Tam: J. Hazard. Mater. Vol. 158 (2008), pp.615-620

Google Scholar

[10] P. Yuan, M. D. Fan, D. Yang, H. P. He, D. Liu, A. H. Yuan, J. X. Zhua, T. H. Chen: J. Hazard. Mater. Vol. 166 (2009), pp.821-829

Google Scholar

[11] J. M. Zachara, D. C. Girvin, R. L. Schmidt, C. T. Resch: Environ. Sci. Technol. Vol. 21 (1987), p.589–594

Google Scholar

© 2025 Trans Tech Publications Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For open access content, terms of the Creative Commons licensing CC-BY are applied.
Scientific.Net is a registered trademark of Trans Tech Publications Ltd.