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

Abstract

There is an urgent need to improve engineering and synthetic chemistry, either through the use of eco-friendly starting materials or the proper design of novel synthesis routes.

Facile Synthesis of NiO–CuO/Activated Carbon Nanocomposites for Use in the Removal of Lead and Cadmium Ions from Water

“…Nowadays, a green and clean environment is considered one of the hottest topics in academia and industry . Heavy-metal wastewater is increasingly being discharged into the environment from different industries .…”

“…Nowadays, a green and clean environment is considered one of the hottest topics in academia and industry. 1 Heavy-metal wastewater is increasingly being discharged into the environment from different industries. 2 What is more, they are the most abundant elements in the earth’s crust, and they can only be transformed into nontoxic forms rather than biodegradable ones.…”

Enhanced Peroxidase-Mimic Catalytic Activity via Cerium Doping of Strontium-Based Metal–Organic Frameworks with Design of a Smartphone-Based Sensor for On-Site Salivary Total Antioxidant Capacity Detection in Lung Cancer Patients

“…Peaks in the C 1s region were found at binding energies of 284.2, 284.8, 287.9, and 288.5 eV, respectively, corresponding to C−C, C− O, C�O, and O−C�O (Figure 2b). 52 2C. 53 Sr 3d deconvolution revealed three peaks, with the two at 134.9 and 133.14 eV attributed to Sr 2+ (Sr 3d 3/2 and Sr 3d 5/2 ) and the peak at 131.88 eV ascribed to Sr 1+ on the basis of the chemical shift caused by the oxidation state change, respectively, as revealed in Figure 2D.…”

“…Moreover, O 1s deconvoluted into four peaks: O–C (529 eV), OC (531 eV), C–O–Sr (532.4 eV), and C–O–Ce (533.6 eV), as shown in Figure C . Sr 3d deconvolution revealed three peaks, with the two at 134.9 and 133.14 eV attributed to Sr 2+ (Sr 3d 3/2 and Sr 3d 5/2 ) and the peak at 131.88 eV ascribed to Sr 1+ on the basis of the chemical shift caused by the oxidation state change, respectively, as revealed in Figure D. ,, The presence of a mixed-valence state (Ce 4+ /Ce 3+ ) in the Ce-SrMOF was shown by the XPS spectra of Ce 3d (Figure E). Ce 4+ peaks were found at 881.6, 886.93, 900.0, and 916.3 eV, while Ce 3+ peaks were found at 884.5, 897.5, and 903.8 eV.…”

A novel trigonal bipyramidal cage-based Zn(ii)-MOF featuring two types of trinuclear clusters with high gas sorption properties

“…15,16 Organic ligands can be modified to access the active site or generate novel architectures. This structural diversity endows the modulation of the pore aperture and pore functionality, crystalline materials for a wide variety of applications including gas adsorption and separation, 3,17–21 catalysis, 22–24 battery, 25–27 and photoelectricity. 28 Among them, as a special subset, the cage-based MOFs possess large internal ordered cavities and small windows, 29–32 which make it possible to selectively capture and separate the guest molecules based on their shape and size.…”