Rapid and selective adsorption of a typical aromatic organophosphorus flame retardant on MIL-101-based metal–organic frameworks

Abstract

Rapid and selective adsorption of TPhP on Cr-MIL-101.

Microwave-Assisted Synthesis of the Flexible Iron-Based MIL-88B Metal-Organic Framework for Advanced Energetic Systems

“…[53,54,58] In the second region, the peaks at 1017 cm -1 , 744 cm -1 , 1166 cm -1 , and 883 cm -1 are attributed to the in-plane/out-of-plane bending of the (C-H) bonds. [53,54,56,58] Most importantly, the absorption of Fe-O bonds could be recognized around 545 cm -1 . [54,59,60] Figure 8.…”

“…In the first region, the absorption bands around 1631 cm -1 and 1398 cm -1 are assigned to the antisymmetric and symmetric stretching of the dicarboxylate groups, respectively. [56,57] The peak related to the aromatic ring (C=C) bonds stretching is recognized at 1507 cm -1 . [53,54,58] In the second region, the peaks at 1017 cm -1 , 744 cm -1 , 1166 cm -1 , and 883 cm -1 are attributed to the in-plane/out-of-plane bending of the (C-H) bonds.…”

“…Indeed, the vibrational spectrum of the obtained crystals agreed with that of Fe-BDC metal-organic frameworks (i.e., MIL-53 and MIL-101), with the high-intensity peaks in the range of 2000 -400 cm -1 . [53][54][55][56] First, the range from 1750-1250 cm -1 corresponds mainly to the vibrations of the carboxylate group bonds and, to some extent, the aromatic ring. The second region in the range between 1250-600 cm -1 is ascribed to the C-H bonds of the ring.…”

Recent Progress in the Removal of Legacy and Emerging Organic Contaminants from Wastewater Using Metal–Organic Frameworks: An Overview on Adsorption and Catalysis Processes

“…The removal of hexabromocyclododecane (HBCD) from an aquatic environment was studied using two Cu- and Fe-based metal–organic frameworks (Cu-BTC and Fe-BTC) [ 46 ]. It was observed that over 80% of HBCD was removed by Cu-BTC within 5 h [ 47 ]. The adsorption mechanism involved van der Waals and hydrophobic interactions ( Figure 3 ).…”

“…The reported maximum adsorption capacities of Cu-BTC and Fe-BTC were 39 and 21.5 mg/g pH = 7 [ 47 ], respectively. Two MIL-101-based metal–organic frameworks (Cr-MIL-101 and Fe-MIL-101-NH 2 ) were used in the adsorption of the emerging contaminant triphenyl phosphate (TPhP), suggesting that hydrophobic interactions may play a dominant role in the selective adsorption process of TPhP, while π–π interactions may also be significantly weak [ 48 ].…”