Efficient removal of heavy metals from polluted water with high selectivity for Hg(ii) and Pb(ii) by a 2-imino-4-thiobiuret chemically modified MIL-125 metal–organic framework

Abstract

A highly porous adsorbent based on a metal–organic framework was successfully designed and applied as an innovative adsorbent in the solid phase for the heavy metal removal.

Solar-driven seawater desalination via plasmonic hybrid MOF/polymer and its antibacterial activity

“…HR-XPS of the C 1s pattern was deconvoluted into ve peaks at 284.69, 285.92, 287.21, 288.92 and 290.83 eV, attributed to C-C (sp 2 , sp 3 ), C-N, C]O, and -COOR, respectively. [70][71][72] The O 1s spectrum was divided into three main peaks at 530.28, 531.97, 532.96 and 535.93 eV that were ascribed to metal-oxygen bonds (O-Ti-O), -OH in the organic ligand and oxygen adsorbed at the surface (C]O) and H 2 O molecules, respectively. 73 The N 1s spectrum was divided into three peaks at 401.36, 399.64 and 398.80 eV binding energies, which belonged to the (-N + ), quinoid imine bonds (-NH-) and benzenoid amine bonds (] N-)of polyaniline, respectively.…”

Insights into the Synergistic Removal of Copper(II), Cadmium(II), and Chromium(III) Ions Using Modified Chitosan Based on Schiff Bases-g-poly(acrylonitrile)

“…Many methods such as adsorption, chemical deposition, coagulation, photocatalytic degradation, solid–liquid phase extraction, electrochemical, membrane systems, and ionic exchange have been developed. − However, a lot of these methods have restrictions in use due to their slow sorption process, very low removal capacity, and poor stability and the fact that they cannot be reused. Material science technology faces considerable challenges to reach a method that faces high requirements for high removal capacity, sensitivity, selectivity, reusability, and stability . The uptake of heavy metal ions from aqueous solution media by adsorption is considered one of the highly efficacious methods used, related to its ease of uptake, low cost, ease, and high selectivity. − …”

“…Material science technology faces considerable challenges to reach a method that faces high requirements for high removal capacity, sensitivity, selectivity, reusability, and stability. 14 The uptake of heavy metal ions from aqueous solution media by adsorption is considered one of the highly efficacious methods used, related to its ease of uptake, low cost, ease, and high selectivity. 15−17 Many biosorptions like fungi, 18 algae, 19 seaweed, 20 microorganisms, 21 and several biopolymers 22 were applied in the metal ion uptake from wastewater.…”

Green construction of eco-friendly phosphotungstic acid Sr-MOF catalysts for crystal violet removal and synthesis of coumarin and xanthene compounds

“…Much research work is concentrated on the investigation of MOFs due to their intrinsic structural properties. 2 Due to their unique features, MOFs show a highly considerable role in diverse fields like gas storage, 3,4 catalysis, 5 adsorption, 6 CO 2 capture, 7 sensors, 8 optical materials, 9 oxygen reduction, 10 ion exchange, 11 hydrogen energy conversion, 12,13 drug delivery, 14 etc. Because of the unique coordination requirements of the metal ion and the bulkiness of the interacting organic ligand, stereochemical issues might arise from the assembly of numerous compounds in a MOF structure.…”