Recovery of zinc and nickel from electrogalvanisation sludges using glycine solutions

Rodríguez, Israel; Valentin, G.; Chanel, S.; Lapicque, François

doi:10.1016/s0013-4686(00)00583-1

Cited by 35 publications

(23 citation statements)

References 6 publications

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“…The glycine has been used as a complexing agent in the electrodeposition of Zn-Ni [2], Cu-Co [3], Zn-Co alloys [4], and more recently by our research group to obtain Zn-Co alloy [5]. These studies show that the deposits obtained from alkaline bath containing glycine are of high quality.…”

Section: Introductionmentioning

confidence: 92%

Initial stages of the electrocrystallization of copper from non-cyanide alkaline bath containing glycine

Ballesteros

Chaînet

Ozil

et al. 2010

Journal of Electroanalytical Chemistry

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Section: Introductionmentioning

confidence: 92%

Initial stages of the electrocrystallization of copper from non-cyanide alkaline bath containing glycine

Ballesteros

Chaînet

Ozil

et al. 2010

Journal of Electroanalytical Chemistry

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“…According to ZnO nanorod-based whisks and nanorod-based dandelions, only the molar ratio of Zn 2+ to glycine is changed. It is well-known that glycine (Gly) molecules can be used as ligands to form the complex Zn(Gly) 2 2+ [12]. When the molar ratio of Zn 2+ to glycine is adjusted to 1:25, 2:25, the pH value is ∼13.6 and ∼13.4, respectively.…”

Section: Formation Mechanism Of Zno Nanorod-based Whisks and Nanorod-mentioning

confidence: 99%

“…When the molar ratio of Zn 2+ to glycine is adjusted to 1:25, 2:25, the pH value is ∼13.6 and ∼13.4, respectively. Due to the relatively higher pH value and relatively lower molar ratio of Zn 2+ to glycine, Zn(Gly) 2 2+ complexes are formed [12]. The formation of Zn(Gly) 2 2+ complexes avoids the immediate formation of substantive Zn(OH) 2 after sodium hydroxide is added to the solution, which is favorable for separating the growth step from the nucleation step and results in the formation of the nanorod-based ZnO hierarchical architectures.…”

Section: Formation Mechanism Of Zno Nanorod-based Whisks and Nanorod-mentioning

confidence: 99%

Controlled-synthesis and photocatalytic properties of ZnO hierarchical nanorod-based whisks and nanorod-based dandelions

Wang

Zou

Wang

2016

Integrated Ferroelectrics

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A facile approach has been developed to fabricate ZnO hierarchical architectures with different morphologies under hydrothermal conditions. ZnO nanorod-based whisks and nanorod-based dandelions have been synthesized through the adjustment of the ratio of Zn(NO 3 ) 2 to glycine. The structures of ZnO hierarchical architectures have been examined by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and high-resolution transmission electron microscopy (HRTEM), and the possible growth mechanism of these ZnO nanostructures has also been discussed. In addition, the photocatalytic properties of these ZnO nanostructures have been also investigated. Investigations confirm that the morphology and specific surface areas play important roles in the photocatalytic properties of these ZnO nanomaterials.

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“…Ni(NH 3 ) i 2+ (i = 1,2,...,6), Ni(OH) n 2-n (n = 1,2,...,4), NiCl + . The concentration equilibrium constants of the nickel complex formation reactions are listed in Table 1 [12][13][14][15]. To simplify the calculation, the solutions are assumed to be ideal.…”

Section: Thermodynamic Analysismentioning

confidence: 99%

Influence of ammonia concentration on anodic deposition of nickel oxide

Zheng

2007

J Appl Electrochem

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Nickel oxide was prepared by anodic deposition in a basic solution comprising nickel chloride, ammonium chloride and ammonia. The influence of ammonia was investigated using galvanostatic reduction techniques and cyclic voltammetry (CV). It was found that the oxidization peak potentials shift positively with decreasing ammonia concentration, while the oxidization peak currents firstly increase with decreasing ammonia concentration and then decrease when the ammonia concentration is lower than 1.67 mol L -1 . This is mainly attributed to the fact that the equilibrium concentration of Ni(OH) 2(aq) varies with the ammonia concentration. A potential plateau at about 0.75 V was observed in galvanostatic reduction curves for nickel oxide, and the length of the potential plateau in solution with 1.67 mol L -1 ammonia concentration was longer than that in the other solutions, which agreed well with the CV results.

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Recovery of zinc and nickel from electrogalvanisation sludges using glycine solutions

Cited by 35 publications

References 6 publications

Initial stages of the electrocrystallization of copper from non-cyanide alkaline bath containing glycine

Initial stages of the electrocrystallization of copper from non-cyanide alkaline bath containing glycine

Controlled-synthesis and photocatalytic properties of ZnO hierarchical nanorod-based whisks and nanorod-based dandelions

Influence of ammonia concentration on anodic deposition of nickel oxide

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