The production of noble metals has started to shift towards using different types wastes. leaching solutions collected during the processing waste have low concentrations metals; therefore, it forces use sorption methods in recovery technology. This work focused on recovering with a technological solution, obtained from refining processes. research consisted set experiments batch method that en...

Nanoporous frameworks are polymeric materials built from rigid molecules, which give rise to their nanoporous structures with applications in gas sorption and storage, catalysis and others. Conceptually new applications could emerge, should these beneficial properties be manipulated by external stimuli in a reversible manner. One approach to render nanoporous frameworks responsive to external s...

Heavy metals when present in amounts equal to the geochemical background do not interfere with the soil metabolism, which is associated with the growth and development of soil microorganisms as well as the processes of synthesis and re-synthesis, governed by intraand extracellular enzymes. In the said concentrations, heavy metals do not cause undesirable changes in the development of plants. On...

We synthesized a variety o f colloidal and non-colloidal mixed hexacyanoferrate(II) com plexes of Fe, C u, C o, Ni, Z n . Mn and studied the cesium sorption in vitro under physiological conditions (artificial gastric juice. pH 1.2 and artificial duodenal ju ice. pH 6.8). All of the hexacyanoferrates under study (except cesium iron (III) hexacyanoferrate C sFeH C F) sorb tracer am ounts of 1'7Cs...

In this study, zinc oxide nanoparticles (ZnO NPs) were biosynthesized with the use of an extract derived from seaweed (Sargassum sp.) and used as a sorbent for removal Cr(III) ions wastewater. The biosorption properties itself well post-extraction residue investigated comparison. ZnO NPs characterized UV–vis, ICP-OES, FTIR, XRD, SEM techniques. sorption capacity (bio)sorbents was function conta...

Sorption characteristics of phenanthrene (PHE) were studied on eight soils with organic carbon contents spanning over an order of magnitude using phase distribution relationships (PDRs) at 1 h, 48 h, and 720 h contact times. A new algebraic method was employed to describe the sorption characteristics at different time intervals (between 1 h and 48 h, and 1 h and 720 h). It was found that nonlin...

The programs of managing waste materials in developing countries are often unsatisfactory and the unreasonable disposal of waste is a major issue in the worldwide. The main aim of the current study is to: Assess the applicability of Rumex crispus L. in removing heavy metals from the contaminated wastewater effluent form Pharmaceutical laboratories by bio-adsorption method. The dried R. crispus ...

Two novel metal coordination polymers, [Zn5Cl4(BBTA)3].3 DMF (1), and [ZnCl(BBTA)(0.5)(DMA)] (2) {H2-BBTA = 1H,5H-benzo(1,2-d:4,5-d')bistriazole}, have been synthesized under solvothermal conditions using ZnCl2 and H2-BBTA in DMF (DMF = N,N'-dimethylformamide) or DMA (DMA = N,N'-dimethylacetamide). Moreover, a highly efficient microwave synthetic route has been developed for 1. The structures o...