Anderson polyoxometalate built-in covalent organic frameworks for enhancing catalytic performances. Issue 17 (21st April 2020)

• Record Type: Journal Article
• Authors: Ma, Rui; Liu, Naifang; Lin, Ting-Ting; Zhao, Tianbo; Huang, Sheng-Li; Yang, Guo-Yu
• Is Part Of: Journal of materials chemistry. Volume 8:Issue 17(2020)
• Page Start: 8548
• Page End: 8553
• Publication Date: 2020-04-21
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d0ta02443k
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : Anderson polyoxometalate-based covalent organic frameworks exhibited the highest catalytic activity in the photodegradation of RhB and MB, as well as 100% selective oxidation of sulfides to sulfoxides. Abstract : Covalent organic frameworks (COFs) have functional synthons, diverse structures and feature-rich functionality. Herein, the combination of a linear linker NH2 –{MMo6 }–NH2 with 4-connected tetrahedral tetrakis(4-formylphenyl)silicon building units produced three isostructural complexes M-Anderson-COF s with a 3-fold interpenetrated diamondoid network. Among them, Mn-Anderson-COF exhibited the highest catalytic activity in the photodegradation of RhB and MB in water. The addition of different scavengers demonstrated that 1 O2 and H2 O2 were primary reactive species to degrade the dyes. Moreover, using M-Anderson-COF as a catalyst, organic sulfides were almost completely oxidized with 100% sulfoxide/sulfone selectivity.