A multifunctional double walled zirconium metal–organic framework: high performance for CO2 adsorption and separation and detecting explosives in the aqueous phase. Issue 33 (7th August 2020)

• Record Type: Journal Article
• Authors: Sun, Xiaodong; Li, Xu; Yao, Shuo; Krishna, Rajamani; Gu, Jiaming; Li, Guanghua; Liu, Yunling
• Is Part Of: Journal of materials chemistry. Volume 8:Issue 33(2020)
• Page Start: 17106
• Page End: 17112
• Publication Date: 2020-08-07
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d0ta04778c
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : A double walled zirconium metal–organic framework JLU-Liu45 displays not only high performance for CO2 adsorption and separation, but also effectively detects explosives in the aqueous phase. Abstract : A rare double walled zirconium metal–organic framework, [Zr6 O4 (OH)4 (DCPB)6 ]·2DMF·1H2 O (JLU-Liu45, 1, 3-di(4-carboxyphenyl)benzene (H2 DCPB)), was successfully constructed. Because of its high connectivity, double wall and interpenetration of the framework, JLU-Liu45 displays extraordinary chemical stability, and is able to maintain an intact framework after being immersed in acid or base solutions. Such a Zr-MOF is also a multifunctional material, which exhibits good capabilities for both CO2 adsorption and separation and explosives detection in the aqueous phase. Due to the multiple weak C–H⋯O interactions and narrow pores of the framework, JLU-Liu45 displays brilliant CO2 adsorption (116 cm 3 g −1, 1 bar and 273 K) and separation ability (CO2 /N2 = 81.4, 1 bar and 298 K), surpassing that of state-of-the-art Zr-MOFs reported to date. Additionally, JLU-Liu45 shows high performance in detecting explosives in the aqueous phase, in which the K SV value towards TNP can reach up to the 10 5 M −1 level.