Results 241 to 250 of about 457,006 (294)

Cu(II) and Au(III) recovery with electrospun lignosulfonate CO2-activated carbon fiber

International Journal of Biological Macromolecules, 2022
The objectives of this study were twofold: developing lignosulfonate activated carbon fibers (LACFs) and determining the corresponding metal recovery mechanisms with batch experiments and non-linear modeling. LACFs were developed through electrospinning, followed by CO2-based physical activation.
Szu-Han, Wang, Feng-Cheng, Chang
openaire   +2 more sources

Biosorption Equilibrium and Kinetics of Au(III) and Cu(II) on Magnetotactic Bacteria

Chinese Journal of Chemical Engineering, 2007
Abstract Magnetotactic bacteria (MTB) as biosorbents for the adsorption of Au(III) and Cu(II) ions from aqueous solution have been investigated. The optimum adsorption conditions for both metal ions were the initial pH scope of 1—5.5 for Au(III) and 2.0—4.5 for Cu(III), room temperature, biomass concentration of 10.0g·L -1 and sorption duration more
Huiping SONG, Xingang LI, Jinsheng SUN, Xiaohong YIN, Yanhong WANG, Zhenhua WU   +5 more
openaire   +1 more source

Characterization of metal-implanted polypyrrole — Studies of Au(III), Cu (II) and Pb (II) interactions

Synthetic Metals, 1997
Abstract Metal-deposited polypyrrole (Ppy) with the advantage of enhanced conductivities and catalysis has aroused interest in interactions between metal and Ppy. Recently, a Ppy-based NOx− sensor was found to be susceptible to interference from cations of Ag(I), Cu(II) and Pb(II) — hinting at a strong interaction between cation and Ppy.
Jong-Ru Rau, Show-Chuen Chen, Horng-Yi Tang   +2 more
openaire   +1 more source

Preparation, characterization and pH-metric measurements of 4-hydroxysalicylidenechitosan Schiff-base complexes of Fe(III), Co(II), Ni(II), Cu(II), Zn(II), Ru(III), Rh(III), Pd(II) and Au(III)

Carbohydrate Research, 2011
The 4-hydroxysalicylidenechitosan Schiff-base (2CS-Hdhba) was prepared by the condensation of 2,4-dihydroxybenzaldehyde with chitosan, and its metal complexes, [M(2CS-dhba)Cl(2)(H(2)O)(2)] (M(III)=Fe, Ru, Rh), [M'(2CS-dhba)(AcO)(H(2)O)(2)] (M'(II)=Co, Ni, Cu, Zn), [Pd(2CS-dhba)Cl(H(2)O)] and [Au(2CS-dhba)Cl(2)], are reported.
Neveen A, Anan, Shawky M, Hassan, Eman M, Saad, Ian S, Butler, Sahar I, Mostafa   +4 more
openaire   +2 more sources

ChemInform Abstract: Mode of Coordination of the Polydentate Ligand Hematoporphyrin IX with Pt(III), Pd(III), Au(II) and Cu(II)

ChemInform, 2010
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Daniela T. Tsekova, Galina G. Gencheva, Panayot R. Bontchev   +2 more
openaire   +1 more source

Effective adsorption of Au(III) and Cu(II) by chemically treated sheep wool and the binding mechanism

Journal of Environmental Chemical Engineering, 2020
Abstract Sheep wool as biosorbent materials was chemically modified by NaOH, Na2S, NaHSO3, and NaBH4 solution. The adsorption amounts of Au(III) were increased after the chemical treatment and the adsorption capacity of the chemically treated wool were performed in the following order; Na2S treated wool > NaBH4 treated wool > NaOH treated wool ...
Solongo Enkhzaya, Koichiro Shiomori, Bolormaa Oyuntsetseg   +2 more
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ChemInform Abstract: VO(II), MN(II), FE(III), CO(II), NI(II), CU(II), ZN(II), CD(II), HG(II), RU(III), RH(III), PD(II), PT(IV) AND AU(III) COMPLEXES OF BENZIDINE

Chemischer Informationsdienst, 1975
AbstractBenzidin bildet mitfden Chloriden von Ru, Rh, Pd, Pt und Au die 2: l‐Komplexe (IV) bis (VII)undJ mit Vanadylsulfat und den übrigen Metallchloriden die 1:1‐Komplexe (I) bis (III).
S. M. F. RAHMAN, NASEER AHMAD, VIJAY KUMAR   +2 more
openaire   +1 more source

Synthesis and spectroscopic characterization of complexes of Cr(III), Cr(VI), Cu(III), Zn(II), Mo(VI), Pd(II), Ag(III), Au(III) and W(VI) with telluric acid

Journal of Molecular Structure, 2013
Abstract New preparative methods are reported for telluric acid complexes, Na 5 [Cr(TeO 4 (OH) 2 ) 2 (H 2 O) 2 ], Na 6 [Zn(TeO 4 (OH) 2 ) 2 (H 2 O) 2 ], Na 6 [Pd(TeO 4 (OH) 2 ) 2 ], Na 5 [M(TeO 4 (OH) 2 ) 2 ] (M(III) = Cu, Ag, Au) and K 6 TeM 6 ′ O 24 (M′(VI) = Cr, Mo, W). Their structures were characterized on
Ian S. Butler, Heba Allah M. El-Sherbeny, Ibrahim M. Kenawy, Sahar I. Mostafa   +3 more
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SYNTHESIS AND CHARACTERIZATION OF SOME THIOCYANATO COMPLEXES OF Ni(II), Cu(II), Pd(II), Pt(II), Au(III), Ti(III), AND V(IV) CONTAINING A TRIDENTATE SCHIFF BASE LIGAND

Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry, 2002
ABSTRACT A tridentate ligand HL having a ONN donor sequence has been synthesised by the condensation of ethylenediamine with salicylaldehyde. The ligand undergoes deprotonation during complexation and forms complexes of the compositions, [M(L)(SCN)], [M=Ni(II), Cu(II), Pd(II) and Pt(II), L=deprotonated Schiff base], K[Ti(L)(SCN)3], [Au(L)-(SCN)]Cl and ...
M. Saidul Islam, M. Akhter Farooque, M. A. K. Bodruddoza   +2 more
openaire   +1 more source

New Amperometric Methods for the Trace Determination of Cu(II), Ag(I) and Au(III)

ECS Transactions, 2010
In the present study, amperometric determination of Cu(II), Ag(I) and Au(III) was carried out. We have used thioglycolic acid (TGA) for this purpose at d.m.e. (dropping mercury electrode). We have employed 0.1M NH3 + 0.1M NH4Cl medium for Cu(II) and Au(III) and 0.1M KNO3 for Ag(I).
Satyender P. Khatkar, Dayawati Langyan, Ritu Langyan   +2 more
openaire   +1 more source