Recovery of uranium using epoxy-modified phosphorus pentasulfide as an efficient adsorbent for uranium extraction from aquatic environments.

Epoxy-modified phosphorus pentasulfide (EPMPS) formulation was developed for the supported recovery of uranium from aquatic environments. The selected components of the prepared formulation were tailored to produce a rigid foamed polymeric material that was rich in phosphorus, nitrogen, sulfur and oxygen atoms, thus increasing chelating bonding possibilities with uranium. FT-IR and SEM were applied to physically characterize the resulting sorbent.

Influence of gamma irradiation on rosin properties and its antimicrobial activity.

The main component of rosin natural gum is abietic acid, which has an interesting chemical structure to be studied with the influence of gamma-ray and the antimicrobial activity on the properties of a cheap abundant solid state natural material of rosin. Rosin is exposed to a wide scale of gamma-ray ranges from 0 to 100 kGy. The changes in the properties are tracked by various techniques of FTIR, XRD, TGA, GPC, and SEM.