Extraction properties for U(VI) by the 25, 27-dihydroxy-26, 28-dimercaptoethoxy-5, 11, 17, 23-tetra-tert-butyl calix[4]arene

Fang zhu Xiao; Yi qiu Pu; Cheng Wang; Yu li Xu; Kang Zhang; Chun Hsing Ho; Guo wen Peng; Shu ya He

doi:10.1007/s10967-019-06556-z

Extraction properties for U(VI) by the 25, 27-dihydroxy-26, 28-dimercaptoethoxy-5, 11, 17, 23-tetra-tert-butyl calix[4]arene

Fang zhu Xiao, Yi qiu Pu, Cheng Wang, Yu li Xu, Kang Zhang, Chun Hsing Ho, Guo wen Peng, Shu ya He

Civil Engineering, Construction Management, and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The p-tert-butyl calix[4]arene thiophenol derivative was successfully synthesized with reflux condition and was characterized by FT-IR and ¹H-NMR. This work mainly adopted the method of controlling variables. The results showed that the optimum pH value, temperature and extraction time were respectively 4.5, 25 °C and 90 min. By calculating the data of the enthalpy change and gibbs free energy, indicating that the process of reaction was an exothermic and spontaneous process, and it demonstrated a close agreement with pseudo-second-order kinetic model. It is also found that the coexisting cations on the extraction of uranium had greater influence.

Original language	English (US)
Pages (from-to)	49-55
Number of pages	7
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	321
Issue number	1
DOIs	https://doi.org/10.1007/s10967-019-06556-z
State	Published - Jul 15 2019

Keywords

Coexisting cation
Gibbs free energy
Thiophenol
p-tert- butyl calix[4]arene

ASJC Scopus subject areas

Analytical Chemistry
Nuclear Energy and Engineering
Radiology Nuclear Medicine and imaging
Pollution
Spectroscopy
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

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title = "Extraction properties for U(VI) by the 25, 27-dihydroxy-26, 28-dimercaptoethoxy-5, 11, 17, 23-tetra-tert-butyl calix[4]arene",

abstract = "The p-tert-butyl calix[4]arene thiophenol derivative was successfully synthesized with reflux condition and was characterized by FT-IR and 1H-NMR. This work mainly adopted the method of controlling variables. The results showed that the optimum pH value, temperature and extraction time were respectively 4.5, 25 °C and 90 min. By calculating the data of the enthalpy change and gibbs free energy, indicating that the process of reaction was an exothermic and spontaneous process, and it demonstrated a close agreement with pseudo-second-order kinetic model. It is also found that the coexisting cations on the extraction of uranium had greater influence.",

keywords = "Coexisting cation, Gibbs free energy, Thiophenol, p-tert- butyl calix[4]arene",

author = "Xiao, {Fang zhu} and Pu, {Yi qiu} and Cheng Wang and Xu, {Yu li} and Kang Zhang and Ho, {Chun Hsing} and Peng, {Guo wen} and He, {Shu ya}",

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year = "2019",

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doi = "10.1007/s10967-019-06556-z",

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T1 - Extraction properties for U(VI) by the 25, 27-dihydroxy-26, 28-dimercaptoethoxy-5, 11, 17, 23-tetra-tert-butyl calix[4]arene

AU - Xiao, Fang zhu

AU - Pu, Yi qiu

AU - Wang, Cheng

AU - Xu, Yu li

AU - Zhang, Kang

AU - Ho, Chun Hsing

AU - Peng, Guo wen

AU - He, Shu ya

PY - 2019/7/15

Y1 - 2019/7/15

N2 - The p-tert-butyl calix[4]arene thiophenol derivative was successfully synthesized with reflux condition and was characterized by FT-IR and 1H-NMR. This work mainly adopted the method of controlling variables. The results showed that the optimum pH value, temperature and extraction time were respectively 4.5, 25 °C and 90 min. By calculating the data of the enthalpy change and gibbs free energy, indicating that the process of reaction was an exothermic and spontaneous process, and it demonstrated a close agreement with pseudo-second-order kinetic model. It is also found that the coexisting cations on the extraction of uranium had greater influence.

AB - The p-tert-butyl calix[4]arene thiophenol derivative was successfully synthesized with reflux condition and was characterized by FT-IR and 1H-NMR. This work mainly adopted the method of controlling variables. The results showed that the optimum pH value, temperature and extraction time were respectively 4.5, 25 °C and 90 min. By calculating the data of the enthalpy change and gibbs free energy, indicating that the process of reaction was an exothermic and spontaneous process, and it demonstrated a close agreement with pseudo-second-order kinetic model. It is also found that the coexisting cations on the extraction of uranium had greater influence.

KW - Coexisting cation

KW - Gibbs free energy

KW - Thiophenol

KW - p-tert- butyl calix[4]arene

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Extraction properties for U(VI) by the 25, 27-dihydroxy-26, 28-dimercaptoethoxy-5, 11, 17, 23-tetra-tert-butyl calix[4]arene

Abstract

Keywords

ASJC Scopus subject areas

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