Fluorescent organic dyes photobleach under intense light. Graphene has been shown to improve the photo-stability of organic dyes. In this paper, we investigated the Raman spectroscopy and photo-bleaching kinetics of dyes in the absence/presence of chemical vapor deposition (CVD)-grown graphene. We show that graphene enhances the Raman signal of a wide range of dyes. The photo-bleaching of the d...

The green synthesis of nanoscale materials is special interest to researchers all over the world. We describe a simple, robust, inexpensive, and environmentally friendly approach gold, silver, iron nanoparticles using variety biomolecules/phytochemicals as potential reducers stabilizers. controlled with different morphologies based on use plant extracts. Green synthesized can be used catalysts,...

The photocatalytic degradation of the commercial reactive Black5 (RB5), Blue19 (RB19), Green19 (RG19), Red120 (RR120), and Yellow81 (RY81) in aqueous solution and sunlight were examined in the presence of Fe2O3 and the mixture Fe2O3/H2O2 as catalysts. The results showed that the photocatalytic degradation followed first-order...

Abstract The development of industries leads to large amount organic wastewater that contains phenol and dyes. For the treatment these pollutants, applications H 2 O based – AOP have advantages in less pollution, low costs high efficiency. In order promote degradation effect , researchers used several methods strengthen AOP. This article mainly reviews catalysts strengthened Catalytic Wet Hydro...

A novel porous metal organic framework, La-PTC was synthesized by solvothermal method using a perylene-3,4,9,10-tetracarboxylate ligand and lanthanum ion. The FTIR analysis showed that has different structure with PTCDA Na4PTC. MOF high crystallinity, bandgap energy of 2.21 eV maximum absorption area at 561 nm. rod shape been obtained the surface 22.2364 m2.g−1 classified into mesoporous materi...