Preparation Of Hybrid Nano Metal Materials At Carbon Carrier And Application In Wastewater Treatment

Nano-nickel modified magnesium and aluminium layered double hydroxides/ melamine-formaldehyde-tetraoxalyl-ethylenediamine chelating resins/activated carbon composite (Ni/MgAl-LDHs/MFT/AC) was prepared by co-precipitation method with an aid of ultrasound. The present materials were characterized by field emission scanning electron microscope (FE-SEM), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). Flower-like MgAl-LDHs particles well distributed at the surface of MFT/AC, a lot of nano-Ni particles were deposited at the surface of MgAl-LDHs/MFT/AC (Ni/MgAl-LDHs/MFT/AC). The uptake of 2,6-DCP was investigated with a pseudo-first order model. Langmuir model well described the equilibrium isotherm. Thermodynamic parameter showed that adsorption was feasible, spontaneous and endothermic. Moreover, under the aid of ultrasound, Ni/MgAl-LDHs/MFT/AC could be successfully degradations of 2,6-DCP, methyl orange, peacock green and methylene blue wastewater, respectively.Nano-copper, polyanilineand and graphene oxide composite was electro-modified at foamy copper electrode (Cu/PANI-GO/Cu). FE-SEM, XRD and FT-IR proved the existence. Cu/PANI-GO/Cu showed a promising catalysis for reduction of sulfur dioxide in aqueous solution with a formation of dithionite.