Tingting Guo

Uniform copper oxide–poly( m -phenylenediamine) microflowers: synthesis and application for the adsorption of methyl orange

A rapid, template-free and surfactant-free approach is proposed for the preparation of copper oxide–poly(m-phenylenediamine) (CuO–PmPD) microflower composites by simply mixing aqueous Cu(NO3)2 and m-phenylenediamine (mPD) at 10 °C. The concentrations of reactants are found to play an important role in the formation of different CuO–PmPD morphologies. The morphologies of the composites can be varied from microflowers to spheres by changing the concentrations of reactants. Moreover, the CuO–PmPD microflower composite exhibits a superior capacity for methyl orange (MO) adsorption.

SIMPLE SYNTHESIS OF UNIFORM α-Fe2O3 MICROSPHERES WITH EXCELLENT PHOTOCATALYTIC PERFORMANCE USING POLY (N-VINYL-2-PYRROLIDONE)

In this paper, a new simple approach has been developed for the preparation of α-Fe2O3 microspheres by a facile hydrothermal method using PVP as a surfactant. Uniform α-Fe2O3 microspheres could be routinely synthesized through solvothermal approach by controlling the PVP/FeCl3⋅6H2O ratio. The as-obtained α-Fe2O3 microspheres exhibit high efficiency on the decolorization of RhB aqueous solution in the presence of H2O2 at room temperature.