Adsorption of copper

Huang QY, Wu JM, Chen WL, Li XY (2000) Adsorption of cadmium on soil colloids and minerals in presence of rhizobia. Pedosphere 10 299-307 Huang QY, Chen WL, Xu LH (2005) Adsorption of copper and cadmium by Cu-and Cd-resistant bacteria and their composites with soil colloids and kaolinite. Geomicrobiol J 22 227-236... 

Nelson [8] studied voltammetric measurement of copper (Il)-organic interactions in estuarine waters. Based on results of previous studies on the effects of organic matter on adsorption of copper at mercury surfaces, Nelson developed a method to evaluate the interactions between divalent copper and... 

Schindler, P. W., P. Liechti, and J. C. Westall (1987), "Adsorption of Copper, Cadmium and Lead from Aqueous Solutions to the Kaolinite-Water Interface", Netherlands J. of Agricultural Sd. 35, 219. 

It prevented the adsorption of copper on the walls of reaction vessels which is a common problem with conventional methodology. 

Barrow, N.J. Bowden, J.W. Posner, A.M. Quirk, J.P. (1981) Describing the adsorption of copper, zinc and lead on a variable charge mineral surface. Aust. J. Soil Res. 19 309-321... 

Mustafa S, Haq I. 1988. Adsorption of copper, cobalt and nickel on amorphous iron hydroxide from aqueous electrolyte solution. Environ Technol Lett 9 1379-1386. 

Plavsic, M., Kozar, S., Krznaric, D., Bilinski, H. and Branica, M., 1980. The influence of organics on the adsorption of copper (II) on yAl203 in seawater, model studies with EDTA. Mar. Chem., 9 175-182. 

Figure 10. Percent adsorption of copper ions as a function of pH in solutions containing 10 3 M Cu2 and 5 X 10 1 M total ammonia, on titania (0), hematite (O), alumina (Q), and quartz (A). (Reproduced, with permission, from Ref. 22. Copyright 1981, Academic Press.)...

Johnson, C.A. (1986) The regulation of trace element concentrations in river and estuarine waters contaminated with acid mine drainage the adsorption of copper and zinc on amorphous iron oxyhydroxides. Geochim. Cosmochim. Acta, 50, 2433-2438. 

Table 4. Adsorption of copper(II) and uranium(VI) by LPEI resins at pH 2...

The continuous decrease in A1203 incorporation in copper is also explained by a change in particle surface composition.43 Chloride present as an impurity forms CuCl, which adsorbs on the particles and thereby inhibits the adsorption of copper ions on the particles. This is an effect characteristic for a copper sulfate bath and was not found in nickel or cobalt baths. A different type of aging was reported for the codeposition of aggregated polystyrene particles with zinc.54,76 Polystyrene incorporation increased continuously in successive experiments, where the rotation speed of a cylinder electrode was randomly varied. Thixotropic viscous behavior of the aggregated suspension causes changes in aggregate size and suspension viscosity with rotation speed of the same time-scale as the experiments. 

Ladonin, D.V., Specific adsorption of copper and zinc by some soil minerals, Eurasian Soil Sci., 30, 1478, 1997. 

O Connor, T. P. and Kester, D. R. (1975) Adsorption of Copper and Cobalt from Freshwater and Marine Systems, Geochim. Cosmochim. Acta 39, 1531. 

Bergamaschi, V.S., Carvalho, F.M.S., Rodrigues, G, and Fernandes, D.B. Preparation and evaluation of zirconia microspheres as inorganic exchanger in adsorption of copper and nickel ions and as catalyst in hydrogen production from bioethanol. Chemical Engineering Journal, 2005, 112 (1-3), 153. 

The effects of electrolyte concentration. Okazaki et al. [26] reported no effect of electrolyte concentration on adsorption of copper and zinc by iron and aluminium oxides. Similarly, from their own work, and from a survey of the literature, Hayes and Leckie [27] concluded that there was little effect of electrolyte concentration on metal adsorption. However, a wider view of the literature shows that there are indeed effects on surfaces which are probably negatively charged - for example, for adsorption of nickel on kaolinite [31], for zinc on soil [32], for copper, cadmium and lead on kaolinite [33] and for cadmium on soil [34]. This discrepancy probably arises because metal adsorption on oxides often... 

Agbenin, J. O., and Olojo, L. A. (2004). Competitive adsorption of copper and zinc by a Bt horizon of a savanna Alfisol as affected by pH and selective removal of hydrous oxides and organic matter, (ieoderrna 119, 85-95. 

ELECTRON SPIN RESONANCE SPECTROSCOPY Electron spin resonance (ESR) is a technique that can also be used on aqueous samples and has been used to study the adsorption of copper, manganese, and chromium on aluminum oxides and hydroxides. Copper(II) was found to adsorb specifically on amorphous alumina and microcrystalline gibbsite forming at least one Cu-O-Al bond (McBride, 1982 McBride et al., 1984). Manganese(II) adsorbed on amorphous aluminum hydroxide was present as a hydrated outer-sphere surface complex (Micera et al., 1986). Electron spin resonance combined with electron spin-echo experiments revealed that chromium(III) was adsorbed as an outer-sphere surface complex on hydrous alumina that gradually converted to an inner-sphere surface complex over 14 days of reaction time (Karthein et al., 1991). 

Biniak, S., Pakula, M., Szymaftski, G., and Swiatkowski, A. (1999). Effect of activated carbon surface oxygen groups on adsorption of copper(II) ions from aqueous solutions. Langmuir, 15, 6117-22. 

Bye, G.C., McEvoy, M., and Malati, M.A., Adsorption of copper (II) ions from aqueous solution by five silica samples, J. Chem. Tech. Biotechnol., 32. 781, 1982. 

Luo, C.S. and Huang, S.D., Adsorption of copper ion with metal hydroxide from ammonia solution, Separ. Sci. Technol., 28, 1253, 1993. 

Peacock, C.L. and Sherman, D.M., Surface complexation model for multisite adsorption of copper(n) onto kaolinite, Geochim. Cosmochim. Acta, 69, 3733, 2005. 

Schindler, P.W., Liechti, R, and WestaU, J.C., Adsorption of copper, cadmium and lead from aqueous solution to the kaolinite/water interface, Neth. J. Agric. Sci., 35, 219, 1987. 

Chen, J.P. and Wu, S., Simultaneous adsorption of copper ions and humic acid onto an activated carbon, J. Colloid Interf. Sci., 280, 334, 2004. 

Dalang, F-, J. Buffle, and W. Haerdi (1984), Study of the Influence of Fulvic Substances on the Adsorption of Copper(II) Ions at the Kaolinite Surface, Environ. Sci. TechnoL 18, 135-141. 

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