Superhydrophobic metal organic framework doped polycarbonate porous monolith for efficient selective removal oil from water.

A series of superhydrophobic polycarbonate porous monoliths modified with metal organic framework (Z8/PC) were firstly fabricated through a facile thermally impacted non-solvent induced phase separation method for efficient selective oil/water separation. The performance of the monoliths on oil/water separation was evaluated in terms of selectivity, equilibrium adsorption capacity, corrosion resistance, kinetics, and circulation. The results showed that the use of ZIF-8 significantly compensated for the shortage of pure monolith.

Removal of cyanide adsorbed on pyrite by HO oxidation under alkaline conditions.

Large amounts of cyanide tailings are produced during the cyanidation process in gold extraction, which are hazardous solid wastes due to the toxic cyanide. Pyrite is one of the main minerals in cyanide tailings. The removal of cyanide adsorbed on pyrite by HO oxidation under alkaline conditions was investigated in this study.

NiO thin film fabricated by electrophoretic deposition and formaldehyde gas sensing property thereof.

In the present work, nanostructured NiO thin films were prepared from a facile method based on electrophoretic deposition (EPD) using NiOOH sols as the starting material. The scanning electron microscope (SEM) and atomic force microscopy (AFM) observations revealed that the films were comprised of 40-80 nm particles with a thickness of about 100 nm. When using the obtained NiO film as formaldehyde gas sensor, it was found that such kind of nanostructured films have contributed and modified remarkably the sensing properties such as shorter response and recovery time (approximately 10 s and 5 s), higher sensitivity (approximately 3/10 ppm) at lower working temperature (approximately 300 degrees C).