Highly efficient metal-organic frameworks adsorbent for Pd(II) and Au(III) recovery from solutions: Experiment and mechanism

Tang, Jiali; Chen, Yingbi; Wang, Shixing; Kong, Desong; Zhang, Libo

doi:10.1016/j.envres.2022.112870

Cited by 70 publications

(16 citation statements)

References 51 publications

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“…The parameters of K d and K are shown in Table S5. The distribution coefficient of UiO-FHD on Pb(II) (26.7) was much greater than that on other metal ions, thus indicating that there was greatest affinity between UiO-FHD and Pb(II) . The above experiments indicate that UiO-FHD shows excellent adsorption performance for Pb(II) and UiO-FHD is a potential adsorbent for removing Pb(II) from wastewater.…”

Section: Resultsmentioning

confidence: 80%

Design of Zr-MOFs by Introducing Multiple Ligands for Efficient and Selective Capturing of Pb(II) from Aqueous Solutions

Liu

et al. 2023

ACS Appl. Mater. Interfaces

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The existence of lead ions seriously affects the quality of many metal products in metallurgical enterprises. Currently, the various methods of lead-ion removal tried by researchers will affect valuable metals in the removal process, thus resulting in low economic efficiency. In this study, a novel metal–organic framework adsorbent (UiO-FHD) which efficiently and selectively captures lead ions is developed by introducing multiple ligands. The maximum adsorption capacity of lead ions is 433.15 mg/g at pH 5. The adsorption process accords with the pseudo-second-order kinetic and the Langmuir isotherm models at room temperature. Thermodynamic experiments indicate that the removal of Pb(II) is facilitated by appropriate temperature reduction. The performance tests indicate that UiO-FHD maintains a high removal rate of 90.35% for Pb(II) after four consecutive adsorption–desorption cycles. The distribution coefficient of lead ions (26.7 L/g) shows that UiO-FHD has excellent selective adsorption for lead ions. It is revealed that the chelation of the sulfhydryl groups and the electrostatic interaction of the hydroxyl groups are the dominant factors to improve the removal rate of Pb(II) by density functional theory calculations. This study clarifies the value of self-designed novel organic ligands in metal–organic framework materials that selectively capture heavy-metal ions.

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Section: Resultsmentioning

confidence: 80%

Design of Zr-MOFs by Introducing Multiple Ligands for Efficient and Selective Capturing of Pb(II) from Aqueous Solutions

Liu

et al. 2023

ACS Appl. Mater. Interfaces

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“…These materials differ in their porosity and are made of clusters or metal ions and ligands for varying the shape and size of porous materials. 28 The unique properties of MOFs such as porosity, functional groups, high mechanical and thermal stability, high surface area, and unique structure widens its applicability in various fields. 29 Currently, MOFs that have remarkable surface elements qualifies them as intense adsorbent materials for removal of various environmental pollutants, because of their large surface area (raging from 1000 m 2 /g to 10 000 m 2 /g) and porous structure (microporous and macroporous ranges from 0.2 to 10 nm) that adsorbs the pollutants from the contaminated regions.…”

Section: Metal-organic Framework As An Adsorbent Materialsmentioning

confidence: 99%

“…MOFs are a group of high-ordered crystalline hybrid materials composed of metal clusters and multifunctional linkers. These materials differ in their porosity and are made of clusters or metal ions and ligands for varying the shape and size of porous materials . The unique properties of MOFs such as porosity, functional groups, high mechanical and thermal stability, high surface area, and unique structure widens its applicability in various fields .…”

Section: Metal-organic Framework As An Adsorbent Materialsmentioning

confidence: 99%

Removal of Toxic Pollutants from Industrial Effluent: Sustainable Approach and Recent Advances in Metal Organic Framework

Saravanan

Kumar

Rangasamy

2022

Ind. Eng. Chem. Res.

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The water environment is mostly polluted by expanded industrial advancements and growth, which directly liberates various toxic pollutants into the water streams. These emerging pollutants cause several hazardous health issues to humans, animals, and the ecosystem. Conventional treatment methodology faces different issues in the recognition and removal of toxins, such as expense, facile operation conditions, and the prerequisite of high maintenance. To overcome this issue, adsorption is viewed as one of the most encouraging innovations for the removal of pollutants. Recently, metal-organic frameworks (MOFs) have been considered to be efficiently adsorbent, because of their porosity, high surface area, fine-tunable metal clusters, and easy functional surface engineering properties. This Review concerns the recent examinations on MOFs as proficient material in the removal of toxic contaminants from wastewater. The adsorption mechanism of toxic pollutants removal using MOFs-based materials was critically reviewed and discussed. At last, challenges and the viewpoint for future advancement of MOFs is summarized.

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“…PGMs can be trapped selectively to solid media that usually consists of inorganic (SiO 2 , dichalcogenides), metal-organic framework and polymeric and biomass derived [80][81][82][83][84][85] (Table 1, entries 1-6) solid substrate with (tethered) ligand moieties. Functionalities are designed to specifically bind to one or more PGM species and absorb them from the multimetal containing aqueous solutions.…”

Section: Selective Trappingmentioning

confidence: 99%

Sustainable and Selective Modern Methods of Noble Metal Recycling

et al. 2022

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Noble metals exhibit broad arrange of applications in industry and several aspects of human life which are becoming more and more prevalent in modern times. Due to their limited sources and constantly and consistently expanding demand, recycling of secondary and waste materials must accompany the traditional mineral extractions. This Minireview covers the most recent solvometallurgical developments in regeneration of Pd, Pt, Rh, Ru, Ir, Os, Ag and Au with emphasis on sustainability and selectivity. Processing—by selective oxidative dissolution, reductive precipitation, solvent extraction, co‐precipitation, membrane transfer and trapping to solid media—of eligible multi‐metal substrates for recycling from waste printed circuit boards to end‐of‐life automotive catalysts are discussed. Outlook for possible future direction for noble metal recycling is proposed with emphasis on sustainable approaches.

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Highly efficient metal-organic frameworks adsorbent for Pd(II) and Au(III) recovery from solutions: Experiment and mechanism

Cited by 70 publications

References 51 publications

Design of Zr-MOFs by Introducing Multiple Ligands for Efficient and Selective Capturing of Pb(II) from Aqueous Solutions

Design of Zr-MOFs by Introducing Multiple Ligands for Efficient and Selective Capturing of Pb(II) from Aqueous Solutions

Removal of Toxic Pollutants from Industrial Effluent: Sustainable Approach and Recent Advances in Metal Organic Framework

Sustainable and Selective Modern Methods of Noble Metal Recycling

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