K₆P₂W₁₈O₆₂ encapsulated into magnetic Fe₃O₄/MIL-101 (Cr) metal–organic framework: a novel magnetically recoverable nanoporous adsorbent for ultrafast treatment of aqueous organic pollutants solutions

Abstract

A Wells–Dawson-type K6P2W18O62 polyoxometalate was encapsulated into the magnetic Fe3O4/MIL-101 (Cr) metal–organic framework and applied as a new magnetically recoverable ternary adsorbent to remove organic dyes from aqueous solutions.

Fabrication of UiO-66/MIL-101(Fe) binary MOF/carboxylated-GO composite for adsorptive removal of methylene blue dye from aqueous solutions

“…23 Therefore, MIL-101 MOF has been frequently utilized for many applications including gas storage, 24 catalysis, 25 sensing 26 and adsorption. 27 Furthermore, UiO-66 is a terephthalic acid-based MOF having both tetrahedral and octahedral cavities. 28 UiO-66 possesses high thermal and chemical stability, extremely high specic surface area, as well as, excellent adsorption properties.…”

Multivariate metal–organic framework MTV-MIL-101 via post-synthetic cation exchange: is it truly achievable?

“…10). 57 Samples PSM-50-DMF and PSM-100-DMF also gave a response typical of the MIL-101 framework. However, the Raman microscope highlighted the presence of some bright red/brown spots (Table S8 †).…”

“…55 In addition, Raman spectroscopy is usually utilized in similar investigations to confirm the coexistence of iron oxides within the MOF matrix. 56,57 All images obtained for the MIL-101(Cr) sample through the Raman microscope at different zooming ranges exhibited bright green crystals with no other interfering material (Table S7 †row 2). Likewise, the MIL-101(Fe) sample images showed clear crystals of darker color (Table S7 †row 3), and measurements performed at different spots confirmed the presence of the MIL-101 phase (Fig.…”

“…The vibrational bands at 873 cm −1 , 1149 cm −1 , 1461 cm −1 , and 1618 cm −1 correspond to the aromatic and dicarboxylate groups of the H 2 BDC linker. 57…”

Synthesis and characterization of a new polyoxometalate nanocluster containing Mo and V as an environmentally green catalyst for oxidative degradation of organic pollutants from aquatic environments

“…[5,6] It is estimated that during the dyeing process in the textile industry, nearly 10%-15% of the dyestuffs were leaked into the aquatic environment, and their degradation is very difficult. [7][8][9] One of the very toxic azo dyes is Amido Black 10B, which may affect the human respiratory system and it can also cause skin and eye damages. [10] Moreover, methylene blue is a toxic phenothiazine cationic dye that can affect aquatic biota and other living organisms for its mutagenic, carcinogenic effects and non-biodegradability.…”