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Adsorption removal of thiocyanate from aqueous solution by calcined hydrotalcite.
J Environ Sci (China). 2006; 18(1):23-8.JE

Abstract

A hydrotalcite with Mg/Al molar ratio 2 was prepared by co-precipitation method and was characterized by XRD, TG/DTA, Zeta potential and BET surface area. The hydrotalcite was calcined at 500 degrees C, with the dehydration from interlayer, the dehydroxilation from the brucite-like layer and the decomposition of carbonate successively, transformed into the mixed oxide type. The removal of thiocyanate from aqueous solution by using the original hydrotalcite and calcined hydrotalcite (HTC-500) was investigated. The results showed that the thiocyanate adsorption capacity of calcined hydrotalcite was much higher than that of the original form. Calcined hydrotalcite was particularly effective at removing thiocyanate, and that the effective range of pH for the thiocyanate removal are between 5.5-10.0. The experimental data of thiocyanate removal fit nicely with Langmuir isotherm, and the saturated adsorption uptake was 96.2 mg SCN-/g HTC-500. The adsorption of thiocyanate by calcined hydrotalcite follows first-order kinetics. And the intercalation to the structure recovery for calcined hydrotalcite. But the presence of additional anions could affect the adsorption behavior of thiocyanate.

Authors+Show Affiliations

Li YJ
School of Environmental Science and Engineering, Shandong University, Jinan 250100, China. yujiang@sdu.edu.cn
Yang M
No affiliation info available
Zhang XJ
No affiliation info available
Wu T
No affiliation info available
Cao N
No affiliation info available
Wei N
No affiliation info available
Bi YJ
No affiliation info available
Wang J
No affiliation info available

MeSH

AdsorptionAluminum HydroxideKineticsMagnesium HydroxideThiocyanatesWaterX-Ray Diffraction

Pub Type(s)

Journal Article

Language

eng

PubMed ID

20050543

Citation

Li, Yu-Jiang, et al. "Adsorption Removal of Thiocyanate From Aqueous Solution By Calcined Hydrotalcite." Journal of Environmental Sciences (China), vol. 18, no. 1, 2006, pp. 23-8.
Li YJ, Yang M, Zhang XJ, et al. Adsorption removal of thiocyanate from aqueous solution by calcined hydrotalcite. J Environ Sci (China). 2006;18(1):23-8.
Li, Y. J., Yang, M., Zhang, X. J., Wu, T., Cao, N., Wei, N., Bi, Y. J., & Wang, J. (2006). Adsorption removal of thiocyanate from aqueous solution by calcined hydrotalcite. Journal of Environmental Sciences (China), 18(1), 23-8.
Li YJ, et al. Adsorption Removal of Thiocyanate From Aqueous Solution By Calcined Hydrotalcite. J Environ Sci (China). 2006;18(1):23-8. PubMed PMID: 20050543.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Adsorption removal of thiocyanate from aqueous solution by calcined hydrotalcite. AU - Li,Yu-Jiang, AU - Yang,Min, AU - Zhang,Xiao-Jin, AU - Wu,Tao, AU - Cao,Nan, AU - Wei,Na, AU - Bi,Yan-Jun, AU - Wang,Jing, PY - 2010/1/7/entrez PY - 2006/1/1/pubmed PY - 2010/1/22/medline SP - 23 EP - 8 JF - Journal of environmental sciences (China) JO - J Environ Sci (China) VL - 18 IS - 1 N2 - A hydrotalcite with Mg/Al molar ratio 2 was prepared by co-precipitation method and was characterized by XRD, TG/DTA, Zeta potential and BET surface area. The hydrotalcite was calcined at 500 degrees C, with the dehydration from interlayer, the dehydroxilation from the brucite-like layer and the decomposition of carbonate successively, transformed into the mixed oxide type. The removal of thiocyanate from aqueous solution by using the original hydrotalcite and calcined hydrotalcite (HTC-500) was investigated. The results showed that the thiocyanate adsorption capacity of calcined hydrotalcite was much higher than that of the original form. Calcined hydrotalcite was particularly effective at removing thiocyanate, and that the effective range of pH for the thiocyanate removal are between 5.5-10.0. The experimental data of thiocyanate removal fit nicely with Langmuir isotherm, and the saturated adsorption uptake was 96.2 mg SCN-/g HTC-500. The adsorption of thiocyanate by calcined hydrotalcite follows first-order kinetics. And the intercalation to the structure recovery for calcined hydrotalcite. But the presence of additional anions could affect the adsorption behavior of thiocyanate. SN - 1001-0742 UR - https://www.unboundmedicine.com/medline/citation/20050543/Adsorption_removal_of_thiocyanate_from_aqueous_solution_by_calcined_hydrotalcite_ DB - PRIME DP - Unbound Medicine ER -