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1. Inverted metal–organic frameworks: isoreticular decoration with organic anions using principles of supramolecular chemistry

   https://doi.org/10.1080/00958972.2021.1880004  

   Mertzenich, Claude L. ; Papaefstathiou, Giannis S. ; Friščić, Tomislav ; Hamilton, Tamara D. ; Bučar, Dejan-Krešimir ; Swenson, Dale C. ; MacGillivray, Leonard R. ( February 2021 , Journal of Coordination Chemistry)
2. Cu(I/II) Metal–Organic Frameworks Incorporated Nanofiltration Membranes for Organic Solvent Separation

   https://doi.org/10.3390/membranes10110313  

   Upadhyaya, Lakshmeesha ; Chiao, Yu-Hsuan ; Wickramasinghe, S. Ranil ; Qian, Xianghong ( November 2020 , Membranes)

   null (Ed.)

   Copper-based metal–organic frameworks (MOFs) with different oxidation states and near-uniform particle sizes have been successfully synthesized. Mixed-matrix polyimide membranes incorporating 0.1–7 wt% of Cu(II) benzene-1,2,5-tricarboxylic acid (Cu(II)BTC), Cu(I/II)BTC and Cu(I) 1,2-ethanedisulfonic acid (EDS) (Cu(I)EDS) MOFs were fabricated via non-solvent-induced phase inversion process. These membranes are found to be solvent resistant and mechanically stable. Liquid phase nanofiltration experiments were performed to separate toluene from n-heptane at room temperature. These membranes demonstrate preferential adsorption and permeation of the aromatic toluene over aliphatic n-heptane. The amount of MOF particles incorporated, the oxidation state of the Cu ion and membrane, and barrier layer thickness have a significant impact on the separation factor. Toluene/heptane separation factor at 1.47, 1.67 and 1.79 can be obtained for membranes incorporating 7 wt% Cu(II)BTC, Cu(I/II)BTC and Cu(I)EDS respectively at room temperature. 

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3. FeN4-doped carbon nanotubes derived from metal organic frameworks for effective degradation of organic dyes by peroxymonosulfate: Impacts of FeN4 spin states

   https://doi.org/10.1016/j.cej.2021.133339  

   Li, Meng ; Li, Zilong ; Yu, Xiaolong ; Wu, Yinlong ; Mo, Cehui ; Luo, Mi ; Li, Ligui ; Zhou, Shaoqi ; Liu, Qiming ; Wang, Nan ; et al ( March 2022 , Chemical Engineering Journal)
4. Insight into the photocatalytic properties of phosphonate‐based metal–organic frameworks for reduction of Cr (VI) and Synergistic elimination of organic dyes under natural sunlight

   https://doi.org/10.1002/aoc.5938  

   Farrokhi, Alireza ; Bivareh, Farzaneh ; Dejbakhshpour, Saeideh ; Moghaddam, Ali Zeraatkar ( August 2020 , Applied Organometallic Chemistry)

   The photocatalytic reduction of Cr (VI) is investigated over phosphonate‐based metal–organic frameworks (MOFs) structured as STA‐12(M)(M = Mn, Fe, Co, Ni). The removal of Cr (VI) appears to be faster with STA‐12(Fe) under natural sunlight. The correlation among responses to effective variables as main and interactions were optimized by central composite design (CCD) in response surface methodology (RSM). Moreover, STA‐12(Fe) has exhibited considerable synergistic photocatalytic activity for dyes (MO and RhB) degradation and Cr (VI) reduction. The reduction ratio of Cr (VI) was increased extremely after addition of MO or RhB. The highest photocatalytic activity of dyes degradation and Cr (VI) reduction appeared under the dye/Cr (VI) weight ratio of 3:1. To determine the most important species that affected the photocatalytic reduction, trapping experiments were carried out, using various kinds of scavenger species. Finally, a probable reaction mechanism has been investigated in detail.

    

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5. Unravelling a long-lived ligand-to-metal cluster charge transfer state in Ce–TCPP metal organic frameworks

   https://doi.org/10.1039/D0CC04116E  

   Yang, Sizhuo ; Hu, Wenhui ; Nyakuchena, James ; Fiankor, Christian ; Liu, Cunming ; Kinigstein, Eli Diego ; Zhang, Jian ; Zhang, Xiaoyi ; Huang, Jier ( November 2020 , Chemical Communications)

   null (Ed.)

   Metal organic frameworks (MOFs) have emerged as promising photocatalytic materials for solar energy conversion. However, a fundamental understanding of light harvesting and charge separation (CS) dynamics in MOFs remains underexplored, yet they are key factors that determine the efficiency of photocatalysis. Herein, we report the design and CS dynamics of the Ce–TCPP MOF using ultrafast spectroscopic methods. 

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