in present study, molecular dynamics simulation of cadmium (ii), lead (ii) and copper (ii) removal from aqueous electrolyte solutions using the ion-exchange process with the zeolite particles was done. the results showed that, most of the particles had the highest affinity of ion exchanging with lead (ii) and the lowest affinity with copper (ii). the calculated mean ion-exchange ratios showed t...

In the title dinuclear complex, [Pb(2)(C(7)H(4)ClO(2))(4)(C(10)H(8)N(2))], the Pb(II) atom is five-coordinated by four carboxyl-ate O atoms from two 2-chloro-benzoate ligands and one N atom from a bridging 4,4'-bipyridine (4,4'-bpy) ligand, displaying a hemi-directed coordination. The 4,4'-bpy ligand has an inversion center at the mid-point of the central C-C bond. The empty side of the metal i...

In the title polymer, [Pb(C(7)H(4)ClO(3))(2)(C(12)H(8)N(2))](n), the Pb(II) ion displays a distorted pseudo-octa-hedral coordination geometry. The metal center is coordinated by six O atoms from four 5-chloro-salicylate ligands and two N atoms from a chelating phenanthroline ligand. The polymeric structure is built up from bridging carboxyl-ate O atoms, forming chains along [100]. The crystal s...

We have developed a biosensor based on BSA with the help of metal ions binding mechanism to detect and remove inorganic As (III), Cu (II), Pb (II) from water like fishing by hooking system. BSA was immobilized via DOPA onto the HDLC (named as BD-HDLC) surface having high loading capacity of proteins with no conformal change and having covalent interaction. These BD-HDLC samples, separately was ...

In present study, molecular dynamics simulation of Cadmium (II), Lead (II) and Copper (II) removal from aqueous electrolyte solutions using the ion-exchange process with the zeolite particles was done. The results showed that, most of the particles had the highest affinity of ion exchanging with Lead (II) and the lowest affinity with Copper (II). The calculated mean ion-exchange ratios showed t...

Electrospun nanofibers have been successfully applied to remove toxic and carcinogenic contaminants such as heavy metals from polluted water. In this study, an efficient adsorbent based on poly(ethylene terephthalate) (PET) nanofibers was developed following a cheap, versatile and scalable process. PET nanofibers were first produced by electrospinning, and their surface was chemically functiona...

abstract: two new transition metal complexes, containing the acidic ligand 5-chlorosalicylic acid (h2l5), and 1,10-phenanthroline（phen） and 1,3-di(4-pyridyl)propane (bpp) as secondary ligands are reported. they are formulated as {[pb(hl5)2(phen)(h2o)]·h2o}n(1), [zn2(hl5)4(bpp)2]n(2). all the complexes are characterized by single-crystal x-ray diffractions. compoud 1 crystallizes in the triclini...

The flexible and larger ring size macrocycle 4 (C(36)H(46)N(6)Se(2)) afforded stable complex 5 [Hg(2)(PF(6))(2)[C(36)H(46)N(6)Se(2)]] on treatment with 1 equiv of mercuric acetate followed by addition of NH(4)PF(6). The reaction of Pb(OCOCH(3))(2).4H(2)O with 4 followed by treatment with NH(4)PF(6) resulted in a dinuclear lead complex (6) [Pb(2)(PF(6))(2)(OCOCH(3))(2)[C(36)H(46)N(6)Se(2)]]. The...

background: lead (pb) is a heavy metal that is widely utilized in industries. it contaminates soil and groundwater. its non-biodegradability, severe toxicity, carcinogenicity, ability to accumulate in nature and contaminate groundwater and surface water make this toxic heavy metal extremely dangerous to living beings and the environment. therefore, technical and economic methods of removing pb ...