Oxidation of mesitylene by an ozone-oxygen mixture

Galstyan, G. A.; Yakobi, V. A.; Tarasenko, A.B.; Galstyan, T. M.

doi:10.1016/0031-6458(75)90020-9

Cited by 3 publications

(2 citation statements)

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“…The major reason for this order is that the antioxidation capability of the ligands in aqueous O 3 follows trimesic acid > terephthalic acid ≫ 2-methylimidazole (Scheme ). − In addition, the stronger coordination bonding in trimesic-type MOFs also accounts for their higher stability. The higher coordination number (six or eight) of the trimesic- and terephthalic-type MOFs may partially account for their better stability than the imidazole-type MOFs with a lower coordination number (four).…”

Section: Results and Discussionmentioning

confidence: 99%

Study on the Stability, Evolution of Physicochemical Properties, and Postsynthesis of Metal–Organic Frameworks in Bubbled Aqueous Ozone Solution

Yue

Lei

Lin

et al. 2021

ACS Appl. Mater. Interfaces

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Metal–organic frameworks (MOFs) are highly promising in many areas. Their application and postsynthesis under strong oxidative environments are emerging. However, the stability, physicochemical property evolution, and possible postmodification and postsynthesis of MOFs in strong oxidative solutions are largely unknown. In this paper, the behaviors of a series of MOFs in bubbled aqueous ozone (O3) solutions are studied. The chosen MOFs are categorized into trimesic type including MIL-101(Fe) and MIL-96(Al); terephthalic type including MOF-74(Co), UiO-66(Zr), MIL-53(Al), and MIL-101(Cr); and imidazole type including ZIF-67(Co) and ZIF-8(Zn), based on the ligand structure. The intrinsic stability and evolution of the physicochemical properties of these MOFs during aqueous O3 treatment are elucidated using structural, morphological, textural, thermal, and spectroscopic analyses. Several stable, metastable, and instable MOFs are identified. The critical parameters that determine the stability and capability for postsynthesis of these MOFs in aqueous O3 solutions are discussed. The stability follows the general order of trimesic-type > terephthalic-type ≫ imidazole-type MOFs because of the distinct antioxidation capability of the ligands. The effects of the ligand, metal cation, and their coordination number on stability are discussed. MIL-100(Fe), MIL-96(Al), and MOF-74(Co) are stable in aqueous O3. UiO-66(Zr), MIL-53(Al), and MIL-101(Cr) are metastable that their porosity, particle size, and crystallinity can be postmodified. ZIF-67(Co) and ZIF-8(Zn) are instable and can be gradually and completely disassembled. Their particle size and morphology and surface groups can be tuned by controlling the treatment time. Postsynthesis of metal hydroxides from ZIF-67(Co) and gradual release of dissolved zinc ion from ZIF-8(Zn) are achievable. The stable MIL-96(Al) shows promising performance in catalytic ozonation for degrading 4-nitrophenol, and the α-Co(OH)2 derived from treating ZIF-67(Co) shows highly promising performance in the electrocatalytic oxygen evolution reaction (OER).

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Section: Results and Discussionmentioning

confidence: 99%

Study on the Stability, Evolution of Physicochemical Properties, and Postsynthesis of Metal–Organic Frameworks in Bubbled Aqueous Ozone Solution

Yue

Lei

Lin

et al. 2021

ACS Appl. Mater. Interfaces

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“…Next, when the amount of VOC being adsorbed on zeolite is sufficient, temperature and relative humidity are increased to 180~250°C and over 90%, respectively, to desorb VOC. The desorbed gas stream is then fed into a thermal oxidizer or a catalytic oxidation system to oxidize mesitylene into CO 2 and H 2 O, which are nontoxic products (Gal'Styan et al, 1975;Zhou et al, 2015). It is noted that flow rate for adsorption stage is usually much higher than desorption stage (>1000 and <100 m 3 /min, respectively).…”

Section: Introductionmentioning

confidence: 99%

Adsorption of mesitylene via mesoporous adsorbents

Nien

Chang²,

Chang

2017

Journal of the Air & Waste Management Association

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This study aims to improve the performance of adsorbent for mesitylene, which is typically applied in the spray-coating industry. The zeolite MCM-41-AS is selected as a candidate for the investigation. Experimental results reveal that MCM-41-AS exhibits a good adsorption capacity for mesitylene and that it can be integrated with H-ZSM-5-25 for the simultaneous adsorption of mesitylene and toluene.

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