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Author Lv, Xiu-Liang ♦ Tong, Minman ♦ Huang, Hongliang ♦ Wang, Bin ♦ Gan, Lei ♦ Yang, Qingyuan ♦ Zhong, Chongli ♦ Li, Jian-Rong
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ♦ ACETYLENE ♦ ADSORPTION ♦ BENZOIC ACID ♦ CARBON DIOXIDE ♦ COMPARATIVE EVALUATIONS ♦ DYES ♦ HYDROXIDES ♦ LIGANDS ♦ MONOCRYSTALS ♦ ORGANOMETALLIC COMPOUNDS ♦ SURFACE AREA ♦ TEMPERATURE DEPENDENCE ♦ UPTAKE ♦ VISIBLE RADIATION ♦ X-RAY DIFFRACTION ♦ ZIRCONIUM OXIDES
Abstract Exploitation of new metal–organic framework (MOF) materials with high surface areas has been attracting great attention in related research communities due to their broad potential applications. In this work, a new Zr(IV)-based MOF, [Zr{sub 6}O{sub 4}(OH){sub 4}(eddb){sub 6}] (BUT-30, H{sub 2}eddb=4,4′-(ethyne-1,2-diyl)dibenzoic acid) has been solvothermally synthesized, characterized, and explored for gases and dyes adsorptions. Single-crystal X-ray diffraction analysis demonstrates a three-dimensional cubic framework structure of this MOF, in which each Zr{sub 6}O{sub 4}(OH){sub 4} building unit is linked by 12 linear eddb ligands. BUT-30 has been found stable up to 400 °C and has a Brunauer–Emmett–Teller (BET) surface area as high as 3940.6 m{sup 2} g{sup −1} (based on the N{sub 2} adsorption at 77 K) and total pore volume of 1.55 cm{sup 3} g{sup −1}. It is more interesting that this MOF exhibits stepwise adsorption behaviors for Ar, N{sub 2}, and CO{sub 2} at low temperatures, and selective uptakes towards different ionic dyes. - Graphical abstract: A new Zr(IV)-based MOF with high surface area has been synthesized and structurally characterized, which shows stepwise gas adsorption at low temperature and selective dye uptake from solution. - Highlights: • A new Zr-based MOF was synthesized and structurally characterized. • This MOF shows a higher surface area compared with its analogous UiO-67 and 68. • This MOF shows a rare stepwise adsorption towards light gases at low temperature. • This MOF performs selective uptakes towards cationic dyes over anionic ones. • Using triple-bond spacer is confirmed feasible in enhancing MOF surface areas.
ISSN 00224596
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-03-15
Publisher Place United States
Journal Journal of Solid State Chemistry
Volume Number 223


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