Spectrophotometric Analysis of the Kinetic of Pd(II) Chloride Complex Ions Sorption Process from Diluted Aqua Solutions Using Commercially Available Activated Carbon

Wojnicki, Marek

doi:10.1515/amm-2017-0354

Cited by 3 publications

(1 citation statement)

References 18 publications

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“…In recent reports, Petrova et al used an N -(2-sulfoethyl) chitosan-based adsorbent to recover palladium from Pt(IV)–Pd(II) binary solution . Sharififard et al recovered palladium using commercially available activated carbon and biopolymer-modified activated carbon. ,, However, the wide use of these adsorbents in a strong acid medium or under the influence of multiple impurity ions is questionable in detecting whether the recovery efficiency and selectivity of palladium can meet the requirements. In short, the selective separation and high-efficiency recovery of Pd(II) require continuous exploration of functional adsorbent materials and a better understanding of the theoretical recovery mechanism.…”

Section: Introductionmentioning

confidence: 99%

Highly Selective Adsorption and Recovery of Palladium from Spent Catalyst Wastewater by 1,4,7,10-Tetraazacyclododecane-Modified Mesoporous Silica

Zeng

Liu

Xiao

et al. 2022

ACS Sustainable Chem. Eng.

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A new silicon-based adsorbent with good adsorption performance on Pd(II) was synthesized from mesoporous silica as a carrier and 1,4,7,10-tetraazacyclododecane as a functional ligand. The batch method was used to investigate and evaluate the adsorption performance of the adsorbent on Pd(II) in HCl-HNO 3 solution. Influencing factors such as the contact time, pH, temperature, initial Pd(II) concentration, and elution conditions on adsorption and elution were systematically investigated and optimized. Simultaneously, adsorption kinetics, thermodynamics, and adsorption isotherms were investigated. The results revealed that under optimal adsorption conditions, the recovery rate of the adsorbent to Pd(II) could reach 98.30−99.75% in a mixed solution, which was mostly unaffected by other impurity ions. After five adsorption−desorption cycles, the recovery rate of the adsorbent to Pd(II) remained more than 93%. Pd(II) adsorption by the adsorbent was rapid within 30 min, and the recovery rate could reach 85%. In combination with density functional theory calculations, an adequate recovery mechanism was proposed to describe the selective adsorption and desorption process of Pd(II), in which the chemical adsorption dominated. As a result, this material can adsorb and recover Pd(II) with high selectivity, a rapid adsorption rate, good stability, and reusability, making it ideal for recovering waste palladium resources under acidic conditions.

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Section: Introductionmentioning

confidence: 99%

Highly Selective Adsorption and Recovery of Palladium from Spent Catalyst Wastewater by 1,4,7,10-Tetraazacyclododecane-Modified Mesoporous Silica

Zeng

Liu

Xiao

et al. 2022

ACS Sustainable Chem. Eng.

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Batch reactor vs. flow column – Mechanistic investigation and modeling of Au(III) ions adsorption from aqueous solutions containing Ni2+, Na+, Cl− and ClO4− as impurities

Wojnicki

Nabec

Luty–Błocho

et al. 2020

Sustainable Materials and Technologies

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Nanoglobular carbon and palladium–nanoglobular carbon catalysts for liquid-phase hydrogenation of organic compounds

Mironenko¹,

Лихолобов²,

Belskaya³

2022

RUSS CHEM REV

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The results of studies related to the development of synthesis, determination of formation conditions and elucidation of the mechanism of palladium–carbon catalyst action are integrated and critically analyzed. The attention is focused on Pd/NGC compositions (NGC is nanoglobular carbon). Methods for NGC preparation with an emphasis on its most common form, carbon black, are considered. The following issues are addressed: mechanisms of formation of carbon nanoglobules and their aggregates, methods of varying the size of nanoglobules, functionalization of the NGC surface to make it suitable as a support for palladium nanoparticles, views on the formation mechanism of palladium clusters and nanoparticles on the carbon support surface and effect of the structure and surface chemistry of carbon nanoglobules on the state of palladium sites in Pd/NGC compositions. The published data on selective hydrogenation of organic compounds in the presence of Pd/NGC catalytic compositions are integrated and systematized. The catalytic properties of Pd/NGC are analyzed in comparison with the properties of palladium catalysts supported on other carbon materials (activated carbon, carbon nanotubes). The influence of preparation conditions of NGC-based palladium compositions on their catalytic properties in practically important hydrogenation reactions is discussed. Promising trends for further research on the development of molecular design methods, study of the genesis of Pd/NGC compositions and extension of their applications in hydrogenation processes are considered. The bibliography includes 623 references.

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Spectrophotometric Analysis of the Kinetic of Pd(II) Chloride Complex Ions Sorption Process from Diluted Aqua Solutions Using Commercially Available Activated Carbon

Cited by 3 publications

References 18 publications

Highly Selective Adsorption and Recovery of Palladium from Spent Catalyst Wastewater by 1,4,7,10-Tetraazacyclododecane-Modified Mesoporous Silica

Highly Selective Adsorption and Recovery of Palladium from Spent Catalyst Wastewater by 1,4,7,10-Tetraazacyclododecane-Modified Mesoporous Silica

Batch reactor vs. flow column – Mechanistic investigation and modeling of Au(III) ions adsorption from aqueous solutions containing Ni2+, Na+, Cl− and ClO4− as impurities

Nanoglobular carbon and palladium–nanoglobular carbon catalysts for liquid-phase hydrogenation of organic compounds

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