Porphyrin -Pincer Pd(II)-Complexes in Water: A Base-Free and Nature-Inspired Protocol for the Oxidative Self-Coupling of Potassium Aryltrifluoroborates in Open-Air.

Metalloporphyrins (and porphyrins) are well known as pigments of life in nature, since representatives of this group include chlorophylls (Mg-porphyrins) and heme (Fe-porphyrins). Hence, the construction of chemistry based on these substances can be based on the imitation of biological systems. Inspired by nature, in this article we present the preparation of five different porphyrin, -tetraphenylporphyrin (), -tetra(-anisyl)porphyrin (), tetrasodium -tetra(-sulfonatophenyl)porphyrin (), -tetra(-hydroxyphenyl)porphyrin (), and -tetra(-carboxyphenyl)porphyrin () as well as their -pincer Pd(II)-complexes such as Pd(II)--tetraphenylporphyrin (), Pd(II)--tetra(-anisyl)porphyrin (), Pd(II)-tetrasodium -tetra(-sulfonatophenyl)porphyrin (), Pd(II)--tetra(-hydroxyphenyl)porphyrin (), and Pd(II)--tetra(-carboxyphenyl)porphyrin ().

Current Trends in the Application of Nanomaterials for the Removal of Pollutants from Industrial Wastewater Treatment-A Review.

In the recent decades, development of new and innovative technology resulted in a very high amount of effluents. Industrial wastewaters originating from various industries contribute as a major source of water pollution. The pollutants in the wastewater include organic and inorganic pollutants, heavy metals, and non-disintegrating materials.

Synthesis and characterization of Cu(OH)-NWs-PVA-AC Nano-composite and its use as an efficient adsorbent for removal of methylene blue.

The present study focused on the synthesis of copper hydroxide nanowires decorated on activated carbon (Cu(OH)-NWs-PVA-AC). The obtained Cu(OH)-NWs-PVA-AC Nano-composite was distinguished by XRD, SEM, EDX, BET, FTIR and XPS respectively. Besides, different variables such as solution p, and initial dye concentration, contact time, and temperature were performed on the adsorption efficiency of MB in a small batch reactor.

CO utilization as a soft oxidant for the synthesis of styrene from ethylbenzene over CoO supported on magnesium aluminate spinel: role of spinel activation temperature.

Magnesium aluminate spinel (MgAlO) supported CoO catalysts are synthesized and tested for the oxidative dehydrogenation (ODH) of ethylbenzene using CO as a soft oxidant. The effect of spinel calcination temperature on the catalytic performance has been systematically investigated. With an increase in the activation temperature from 600 to 900 °C, the active presence of a single-phase MgAlO spinel is observed.

Preparation of novel chitosan polymeric nanocomposite as an efficient material for the removal of Acid Blue 25 from aqueous environment.

A novel, sustainable chitosan polymeric nanocomposite (CS-PVA@CuO) was synthesized and subjected to the removal of acid blue 25 (AB25) from the aqueous environment. The influence of different variables such as p, contact time, initial dye concentration, temperature, and adsorption kinetics has been examined in the batch adsorption process. The CS-PVA@CuO composite was systematically characterized by XRD, FTIR, SEM, and EDX analysis.

Hydrogen-free hydrogenation of nitrobenzene direct coupling with cyclohexanol dehydrogenation over ordered mesoporous MgO/SBA-15 supported Cu nanoparticles.

Direct catalytic coupling of nitrobenzene hydrogenation and cyclohexanol dehydrogenation was studied in the gas phase over mesoporous MgO-SBA15 supported Cu nanoparticles. This approach avoids an external supply of H and utilizes the liberated H from the dehydrogenation step of the first reactant for the hydrogenation reaction of the second reactant. A catalyst series consisting of four Cu/MgO-SBA15 mesoporous solids with varying Cu loadings (5-20 wt%) were prepared and systematically characterized by BET, ICP, XRD, TPR, TPD, FT-IR, SEM, XPS, and TEM.

Dynamic covalent bonding-triggered supramolecular gelation derived from tetrahydroxy-bisurea derivatives.

A new class of bisurea derivatives bearing tetrahydroxy groups have been proven to be non-gelators in water and various organic solvents even under long-term sonication or efficient heating treatment. We found that it is possible to trigger physical gelation behaviour by constructing dynamic covalent bonding. The results show that formation of dynamic covalent bonding between the borate anion and ethanediol substituent in these bisurea derivatives brings about rapid physical gelation at ambient temperature in a mixture of DMSO and water.

Salt Tunable Rheology of Thixotropic Supramolecular Organogels and Their Applications for Crystallization of Organic Semiconductors.

Physical gelation behaviors of a series of novel bisurea-based derivatives bearing fatty alkyl tertiary amine moieties have been explored in water and common organic solvents. One of these amines exhibits very good thixotropic gels in apolar aromatic solvents (e.g.