A series of nanocomposites consisting of zero-valent iron nanoparticles (ZVI NPs) encapsulated in SiO2 microspheres were successfully synthesized through a successive two-step method, i.e., the wet chemical reduction by borohydride followed by a modified Stöber method. The as-synthesized nanocomposites were characterized using X-ray diffraction, field emission scanning electron microscopy, vibr...

Water pollution, having organic dyes, has lethal impacts on aquatic life and public health. To eliminate or degrade a metal-organic framework (MOF) based BiCoO3 semiconductor is considered potential photocatalyst for the degradation of dyes. In this study, MOF-5-based (MOF-5/BiCoO3) composite was successfully synthesized using one-pot hydrothermal process. Different analytical techniques were u...

A waste paper sludge-derived heterogeneous catalyst (WPS-Fe-350) was synthesized via a facile method and successfully applied for the degradation of Orange II in the presence of oxalic acid under the illumination of ultraviolet light emitting diode (UV-LED) Powder X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electronic microscopy and N2 sorption isotherm analysis indicat...

We have synthesized closely packed hexagonal 2D plates and clustered nanoparticle morphologies of Ba(Sb/Ta)2O6 (BSTO) perovskite via the polymerizable complex method for photocatalytic dye degradation activities. The BSTO crystallized in a structure. presence Ba2+, Sb5+, Ta5+, O2− chemical states identified from XPS confirmed formation mixed phase accompanied with minor amount TaOx. Furthermore...

The treatment of wastewater from the textile industry containing organic dyes faces many challenges since these compounds resist biodegradation process in conventional units. Among physicochemical processes, photocatalysis is considered a facile, cheap, and environmental-friendly technology for treating persistent pollutants waters at low concentrations. This study investigated several factors ...

In this paper we selected two metal-free dyes (Dye 1 and Dye 2) based on 1,8-naphthalimide. The proposed dyes were sensitized from acenaphthene as the starting material by standard reactions. Spectrophotometric measurements of the organic dyes in DMF and on TiO2 substrate were carried out in order to assess changes in the status of the dyes. Maximum absorption wavelengths for Dye...

In the present study, two new organic dyes based on indigo were prepared and used as sensitizers in dye-sensitized solar cells. To this end, indoxyl was utilized as the electron donor and cyanoacrylic acid as the electron acceptor anchoring groups. These dyes together with their corresponding intermediates were purified and characterized by FTIR, 1HNMR, 13CNMR, elemental analysis and UV-Visible...