Degradation of refractory dibutyl phthalate by peroxymonosulfate activated with novel catalysts cobalt metal-organic frameworks: Mechanism, performance, and stability

Cu@Co-MOFs as a novel catalyst of peroxymonosulfate for the efficient removal of methylene blue

“…In detail, the bands located at 1650 cm À1 was associated with the stretching vibrations of the n as (C]O). 31 The strong band of FTIR at 1398.1 cm À1 was ascribed to the asymmetric stretching (n as (C-O)), while another strong bank at 1576.7 cm À1 was due to the presence of symmetric (n s (C-O)) vibrations, conrming the presence of the dicarboxylate linker within the frameworks. 27 The peak at 757.5 cm À1 reected the presence of the C-H bending vibrations of benzene.…”

“…7,29,30 In our previous study, the catalytic activity of the Co-based MOFs (Co 3 (BTC) 2 $12H 2 O) was investigated as the activator of PMS for the degradation of dibutyl phthalate (DBP) in water, and it was found that the water stability of Co 3 (BTC) 2 $12H 2 O needed to improve. 31 Another MOFs, Cu-BTC (Cu 3 (BTC) 2 $12H 2 O) was stable in water, but its catalytic performance for the decomposition of PDS was weak. 32 Therefore, it is a great challenge to increase the water stability and catalytic performance of MOFs for further enhancement of organic pollutants degradation.…”

Activation performance and mechanism of a novel heterogeneous persulfate catalyst: metal–organic framework MIL-53(Fe) with FeII/FeIII mixed-valence coordinatively unsaturated iron center

“…For example, MIL-88A was successfully used as heterogeneous catalyst to activate persulfate for the decolorization of Rhodamine B dye [26]. MIL-100(Fe), [Cu 2 (btec)(btx) 1.5 ] n was determined to have high catalytic activity towards H 2 O 2 [27, 28] as a Fenton catalyst, and cobalt-based MOF, like ZIF-67 and Co 3 (BTC) 2 ·12H 2 O were all proved to be good heterogeneous peroxymonosulfate(PMS) catalyst [29, 30]. MIL-53(Fe) is an iron-based MOF with appreciable stability.…”

Fabrication and biocompatibility assessment of polypyrrole/cobalt(II) metal-organic frameworks nanocomposites

“…The exhibited peaks at 1522 cm − 1 , 1440 cm − 1 , and 1370 cm − 1 were ascribed to the symmetric and asymmetric stretching vibrations of the carboxyl groups. The observed peaks at 1108 cm − 1 and 970 cm − 1 were related to the C-N and N-CHO stretching vibrations, respectively, which confirmed the coordination of DMF to Co(II) [27][28][29]. The PPy/x%Co-MOF composites exhibited the characteristic peaks of the pure PPy and Co-MOF that confirmed the presence of these compounds in the as-formed nanocomposites.…”