Highly efficient adsorption of congo red and methyl orange dyes using mesoporous α-MnO nanoparticles synthesized with Pyracantha angustofolia fruit extract.

Due to the many applications of manganese oxides in water treatment, this research aimed to synthesize α-MnO nanoparticles through a green method and investigate the dye adsorption capacity of them. The α-MnO nanoparticles were successfully synthesized using KMnO and aqueous extract of Pyracantha angustofolia fruits under hydrothermal conditions and calcination. The products were identified using Fourier transform infrared (FTIR), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), and scanning electron microscopy (SEM) analyses.

Hydrothermally synthesized biofunctional ceria nanoparticles using orange peel extract: optimization, characterization, and antibacterial and antioxidant properties.

In this research, cerium oxide nanoparticles were synthesized using orange peel extract a hydrothermal method. An equal ratio of orange peel extract to cerium nitrate salt led to the formation of cerium hydroxide carbonate, whereas a 1 : 10 ratio formed cerium oxide. The hydrothermal treatment was conducted for durations of 5 and 25 hours.

Facile and scalable preparation of superhydrophobic brass mesh for efficient and rapid separation of oil and water.

A facile method for preparing superhydrophobic brass mesh is proposed based on electrochemical etching and surface modification. The impact of processing time and the electric potential of the electrochemical etching were studied on the contact angle (CA) of the mesh. The samples were examined using scanning electron microscopy, Energy-dispersive X-ray spectroscopy analysis, X-ray diffraction, and Fourier-transform infrared spectroscopy.