X-ray coupled Laser Desorption Ionization assessment of layered double hydroxides for nitrate adsorption based on ion size, affinity and compromised layer height

Add time:08/14/2019    Source:sciencedirect.com

The adsorption of nitrates with NO3(aq) solutions ranging from 20 mg/L to 400 mg/L with Layered-Double-Hydroxides (LDH) PURAL 70 (Mg70) and an Erbium containing LDH (Er40) were investigated. The X-ray Diffraction measurements (XRD) are accompanied by complemented Matrix Assisted Laser Desorption Ionization-Time of Flight (MALDI-TOF) measurements for prove of NO3- containing LDH. The shift in the XRD reflection angle for both Mg70 and Er40 corresponds to MALDI-TOF Data for presence of nitrate for all LDH except for Er40MW, as its nitrate adsorption capacity is the lowest. Both methods show the adsorption of nitrates for microwaved LDH and further calcined LDH, proving the memory effect. UV–vis spectroscopy was used to determine the nitrate concentration. The study shows substantial amount of nitrate adsorption for all LDH. Adsorption ranges from 2 to 5 mg-NO3(aq)/g-LDH for initial NO3(aq) concentration from 20 mg/L to 400 mg/L. Leaching of element from the LDH structure is done by ICP-MS measurements to guarantee no further pollution of environmental waters with mentioned elements. Leaching for Mg ranges from170 to 1600 mg/m3 and Al, Er and Fe leaching is less than 10 mg/m3.

We also recommend Trading Suppliers and Manufacturers of lead hydroxide nitrate (cas 12268-84-7). Pls Click Website Link as below: cas 12268-84-7 suppliers

Prev:Synthesis and characterization of pure and Zn doped lead hydroxide nano structure through chemical root method
Next:Preparation of zinc/iron layered double hydroxide intercalated by citrate anion for capturing Lead (II) from aqueous solution)