Functional novel ligand based palladium(II) separation and recovery from e-waste using solvent-ligand approach

Islam, Aminul; Roy, Srimonta; Teo, Siow Hwa; Khandaker, Shahjalal; Taufiq‐Yap, Yun Hin; Aziz, Abdul; Monir, Minhaj Uddin; Rashid, Umer; Vo, Dai‐Viet N.; Ibrahim, Mohd Lokman; Znad, Hussein; Awual, Md. Rabiul

doi:10.1016/j.colsurfa.2021.127767

Cited by 37 publications

(2 citation statements)

References 129 publications

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“…Among the various techniques employed for palladium recovery via adsorption, chelation has emerged as a promising and effective approach. 19,20 Chelating adsorbers such as polymers and ligands have been investigated for the removal of metal ions due to their design exibility, high stability and notable regeneration ability. 21,22 Chitosan, chemically modied with Llysine, has proven effective in adsorbing Au(III), Pt(IV), and Pd(II) from aqueous solutions, exhibiting a remarkable maximum adsorption capacity of 109 mg g −1 for Pd.…”

Section: Introductionmentioning

confidence: 99%

From waste to wealth: chelating polymeric membranes for precious palladium recovery from wastewater

Aburabie,

Mohammed,

Kumaran

et al. 2023

J. Mater. Chem. A

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Section: Introductionmentioning

confidence: 99%

From waste to wealth: chelating polymeric membranes for precious palladium recovery from wastewater

Aburabie,

Mohammed,

Kumaran

et al. 2023

J. Mater. Chem. A

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“…Novel materials have captured increased attention for diverse uses, such as removing different pollutants [ 13 , 14 , 15 , 16 ]. Many studies have investigated the removal of antibiotics, such as ultrafiltration [ 17 ], nanofiltration [ 18 ], flocculation [ 19 ], coagulation [ 20 ], and adsorption [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Efficient Removal of Ciprofloxacin from Contaminated Water via Polystyrene Anion Exchange Resin with Nanoconfined Zero-Valent Iron

et al. 2022

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Ciprofloxacin (CIP), an important emerging contaminant, has been frequently detected in water, and its efficient removal has become an issue of great concern. In this study, a nanocomposite material nZVI/PA was synthesized by impregnating nanoscale zero-valent iron (nZVI) inside a millimeter-sized porous host (polystyrene-based anion exchange resin (PA)) for CIP removal. The nZVI/PA composite was characterized by field emission scanning electron microscopy coupled with energy-dispersive X-ray, transmission electron microscopy, X-ray diffraction, as well as X-ray photoelectron spectroscopy, and it was confirmed that nZVI was uniformly dispersed in PA with a small particle size. Furthermore, several key factors were investigated including initial solution pH, initial CIP concentration, co-existing ions, organic ligands, and dissolved oxygen. The experimental results indicated that the nZVI/PA composites exhibited a high removal efficiency for CIP under the conditions of initial pH 5.0, and initial CIP concentration 50 mg L−1 at 25 °C, with the maximum removal rate of CIP reaching 98.5%. Moreover, the nZVI/PA composites exhibited high efficiency even after five cycles. Furthermore, quenching tests and electron spin resonance (ESR) confirmed that CIP degradation was attributed to hydroxyl (·OH) and superoxide radicals (⋅O2−). Finally, the main degradation products of CIP were analyzed, and degradation pathways including the hydroxylation of the quinolone ring, the cleavage of the piperazine ring, and defluorination were proposed. These results are valuable for evaluating the practical application of nZVI/PA composites for the removal of CIP and other fluoroquinolone antibiotics.

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Synthesis and application of a novel self‐smart sensor based on a modified amino‐functionalized Zr‐metal–organic framework for rapid and selective detection of some toxic metals in wastewater

El‐Bindary

Shahat

El‐Deen

et al. 2023

Applied Organom Chemis

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In this study, a simple optical luminescence smart sensor derived from organic ligand‐based metal–organic framework material with high oxidation state central metal (Zr4+) was developed. It also was screened to achieve Fe3+, Pb2+, and Co2+ sensitive detection through the strong coordination of amino groups or nitrogen center with 2‐acetylpyridine ligand. The intrinsic optical and fluorescence intensities of sensor were regulated by the ligand‐to‐metal charge transfer effect. The new sensor exhibits an excellent selectivity, ultrafast detection of Fe3+, Pb2+, and Co2+ ions in water with good detection limits (LODs and LOQs). Fluorometric and UV–Vis absorption spectroscopies were used to conduct the study. Brunauer, Emmett, and Teller, Fourier transform infrared (FT‐IR); X‐ray diffraction spectrometry; and X‐ray Photoelectron Spectroscopy were used to confirm the structure of the novel sensor. A real industrial wastewater sample was investigated against the synthesized sensor with a powerful detection efficiency.

show abstract

Functional novel ligand based palladium(II) separation and recovery from e-waste using solvent-ligand approach

Cited by 37 publications

References 129 publications

From waste to wealth: chelating polymeric membranes for precious palladium recovery from wastewater

From waste to wealth: chelating polymeric membranes for precious palladium recovery from wastewater

Efficient Removal of Ciprofloxacin from Contaminated Water via Polystyrene Anion Exchange Resin with Nanoconfined Zero-Valent Iron

Synthesis and application of a novel self‐smart sensor based on a modified amino‐functionalized Zr‐metal–organic framework for rapid and selective detection of some toxic metals in wastewater

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