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Issue 16, 2016
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High efficiency of mechanosynthesized Zn-based metal–organic frameworks in photodegradation of congo red under UV and visible light

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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

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The article was received on 16 Nov 2015, accepted on 19 Jan 2016 and first published on 22 Jan 2016


Article type: Paper
DOI: 10.1039/C5RA24238J
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Citation: RSC Adv., 2016,6, 13272-13277
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    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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