Issue 16, 2016

High efficiency of mechanosynthesized Zn-based metal–organic frameworks in photodegradation of congo red under UV and visible light

Abstract

Three zinc(II) metal–organic frameworks, [Zn2(oba)2(4-bpdb)] (TMU-4), [Zn(oba)(4-bpdh)0.5]n (TMU-5) and [Zn(oba)(4-bpmb)0.5]n (TMU-6), (H2oba = 4,4′-oxybisbenzoic acid, 4-bpdb = 1,4-bis(4-pyridyl)-2,3-diaza-1,3-butadiene, 4-bpdh = 2,5-bis(4-pyridyl)-3,4-diaza-2,4-hexadiene and 4-bpmb = N1,N4-bis((pyridin-4-yl)methylene)benzene-1,4-diamine), containing azine-functionalized pores have successfully been synthesized via mechanosynthesis as a convenient, rapid, solventless and green process. These MOFs were studied for degradation of congo red from aqueous solutions under UV and/or visible light irradiation without auxiliary oxidants such as H2O2. TMU-6 could decolorize 100 ppm of congo red readily and quickly within 90 min, exhibiting about 68.4% in COD reduction after 72 h of UV irradiation. These results suggest that TMU-6/UV photocatalysis may be envisaged as a method for treatment of diluted colored waste waters not only for decolorization, but also for detoxification in textile industries.

Graphical abstract: High efficiency of mechanosynthesized Zn-based metal–organic frameworks in photodegradation of congo red under UV and visible light

Supplementary files

Article information

Article type
Paper
Submitted
16 Nov 2015
Accepted
19 Jan 2016
First published
22 Jan 2016

RSC Adv., 2016,6, 13272-13277

Author version available

High efficiency of mechanosynthesized Zn-based metal–organic frameworks in photodegradation of congo red under UV and visible light

M. Y. Masoomi, M. Bagheri and A. Morsali, RSC Adv., 2016, 6, 13272 DOI: 10.1039/C5RA24238J

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