Recent advances in metal–organic frameworks as adsorbent materials for hazardous dye molecules

Abstract

Water is vital for sustenance of all forms of life. Hence, water pollution is a universal crisis of survival for all forms of life and a hurdle for sustainable development....

A new cotton functionalized with iron(III) trimer-like metal framework as an effective strategy for the adsorption of triarylmethane dye: An insight into the dye adsorption processes

“…Under these comparable running experimental conditions (pH average value ¼ 6.25), the water molecules play a leading role due to the effect of solvation/desolvation penalty processes on the adsorption/desorption of specific dye molecules [44]. It cannot be ignored that water acts as a nucleophile (spacefill) and as a donor of hydrogen of up to two bridges, as well as an acceptor of the hydrogen atom in the interaction with other water molecules (Figure 11) Then, it mediates electrostatic interactions [26,27].…”

“…This strategy has also been used in the preparation of recyclable photocatalyst composites of Ag 2 WO 4 @MIL-125-NH 2 @cotton and Ag 3 VO 4 @MIL-125-NH 2 @cotton applied to the degradation of dye in the visible light [24]. Some reviews have classified and discussed the most significant progress in the application of similar networks for the adsorption of organic dye from aqueous solution which are resistant to be degraded by light, heat, and oxidation in natural environments [25,26,27].…”

Organic Dyes versus Adsorption Processing

“…The importance of these adsorptive methodologies in the removal of organic dyes from waters is reflected in the number of investigations and reviews published in the years. Recently, several reviews about the use of a given type of adsorbents in this role have been published, including silica-based mesoporous materials of the M41S and SBA-n families [ 1 ], different types of graphene-based materials [ 2 , 3 ], biochars [ 4 ], metal–organic frameworks (MOF) [ 5 , 6 ], various types of polymeric nanofibers [ 7 ], metal-doped porous carbon materials [ 8 ], and activated carbon fibers [ 9 ].…”

Photodegradation of Brilliant Green Dye by a Zinc bioMOF and Crystallographic Visualization of Resulting CO2

“…However, probably the two most promising technologies for this purpose are based on the straightforward capture of the organic dyes by a porous material or their in-situ photocatalytic degradation [ 5 , 6 ]. In particular, metal-organic frameworks (MOFs) are porous crystalline materials that have already been shown to be efficient in the last two approaches [ 7 , 8 , 9 , 10 , 11 , 12 , 13 ].…”