Selective adsorption of Cs+ by MXene (Ti3C2Tx) from model low-level radioactive wastewater

Jun Byung-Moon; 장민; 박창민; 한종훈; 윤여민

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자료유형: 학술저널

저자정보: Jun Byung-Moon 장민 박창민 한종훈 윤여민

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제52권 제6호

발행연도: 2020.1

수록면: 1,201 - 1,207 (7page)

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This study explored whether MXene (Ti3C2Tx) could remove radioactive Csþ from model nuclear wastewater. Various adsorption tests were performed and the physical aspects of the interaction were investigated. We varied the MXene dosage, Csþ initial concentration, solution pH, solution temperature and exposure time. MXene adsorption exhibited very fast kinetics, based on the fact that equilibriumwas achieved within 1 h. MXene exhibited an outstanding adsorption capacity (148 mg g 1) at adsorbent and adsorbate concentrations of 5 and 2 mg L 1, respectively, at neutral pH condition (i.e., pH 7). We explored Csþ adsorption by MXene in the presence of four different ions (NaCl, KCl, CaCl2 and MgCl2) and three different organic acids (sodium oleate, oxalic acid, and citric acid). The Csþ removal rate changed in the presence of these components; adsorption of Csþ by MXene thus involved ion exchange, supported by both Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy. We conﬁrmed that MXene was re-usable for at least four cycles. MXene is cost-effective and practical when used to adsorb radionuclides (e.g., Csþ) in nuclear wastewater

참고문헌 (44)

참고문헌 신청

B. Hu / 2012 / Prussian blue caged in spongiform adsorbents using diatomite and carbon nanotubes for elimination of cesium / J. Hazard Mater 217-218:85~91

H. A. Alamudy / 2018 / Selective adsorption of cesium from an aqueous solution by a montmorillonite-prussian blue hybrid / Chem. Eng. J 349:595~602

S. Naeimi / 2017 / Performance of novel adsorbent prepared by magnetic metal-organic framework(MOF)modified by potassium nickel hexacyanoferrate for removal of Csþ from aqueous solution / Separ. Purif. Technol 175:255~265

J. Jang / 2016 / Magnetic prussian blue nanocomposites for effective cesium removal from aqueous solution / Ind. Eng. Chem. Res 55:3852~3860

X. Wang / 2019 / Synthesis of novel nanomaterials and their application in efficient removal of radionuclides / Sci. China Chem 62:933~967

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