Improving barium ion adsorption on two-dimensional titanium carbide by surface modification. Issue 25 (13th June 2018)

• Record Type: Journal Article
• Authors: Mu, Wanjun; Du, Shenzhen; Yu, Qianhong; Li, Xingliang; Wei, Hongyuan; Yang, Yuchuan
• Is Part Of: Dalton transactions. Volume 47:Issue 25(2018)
• Page Start: 8375
• Page End: 8381
• Publication Date: 2018-06-13
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c8dt00917a
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : To capture radioactive barium from wastewater, the Ti3 C2 T x material was modified by activation treatment and it exhibited high adsorption ability for removal of Ba 2+ from aqueous solution. Abstract : Recently, 2D-MXene materials have attracted much attention. However, their low adsorption capacities for metal ions have limited their application in nuclear wastewater disposal. Here, we describe the unprecedentedly high adsorption by Ti3 C2 T x for the removal of radionuclides by a simple and efficient surface modification strategy. We have produced an Alk-Ti3 C2 T x material possessing desirable properties such as wide layer spacing and abundant active adsorption sites, with excellent ability to remove barium ions from aqueous solution. Maximum Ba 2+ adsorption by Alk-Ti3 C2 T x is 46.46 mg g −1, almost three times higher than that of unmodified Ti3 C2 T x and much higher than that reported in previous studies. The remarkable selectivity for the removal of Ba 2+ from simulated mixed nuclear wastewater is highly desirable for application in environmental wastewater treatment.