Sustainable ligand-modified based composite material for the selective and effective cadmium(II) capturing from wastewater

Hasan, Md. Munjur; Kubra, Khadiza Tul; Hasan, Md. Nazmul; Awual, Mrs Eti; Salman, Md. Shad; Sheikh, Md. Chanmiya; Rehan, Ariyan Islam; Rasee, Adiba Islam; Waliullah, R.M.; Islam, Md. Shahinoor; Khandaker, Shahjalal; Islam, A. K. M. Sadrul; Hossain, Mohammed Sohrab; Alsukaibi, Abdulmohsen Khalaf Dhahi; Alshammari, Hamed M.; Awual, Md. Rabiul

doi:10.1016/j.molliq.2022.121125

Cited by 206 publications

(39 citation statements)

References 109 publications

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“…In addition, the high-resolution Cu 2p XPS spectrum realized that the peaks at Cu 2p3/2 can be divided into two small peaks (Figure d), Cu–N and Cu–O, indicating that Cu 2+ was not only combined by electrostatic attraction during the adsorption process but also chelated with tertiary amine groups and oxygen-containing groups such as hydroxyl/carboxylic groups in the adsorbent. Therefore, the adsorption mechanism of CPPF adsorbent on heavy metal ions is the result of the synergy of electrostatic attraction and functional group chelation. − ,− …”

Section: Resultsmentioning

confidence: 99%

Durable Carboxylated Porous Polymer Foam as a High-Performance Adsorbent for Dye and Heavy Metal Ion Removal

Liu

Gao

Zhang

et al. 2023

ACS Appl. Eng. Mater.

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PolyHIPEs are porous emulsion-templated polymers synthesized within high internal phase emulsions (HIPEs), which are generally used as adsorbents due to their excellent porosity and large specific surface area. However, most reported polyHIPEs-based adsorbents showed inferior adsorption performance due to their hydrophobic nature and limited stability. Herein, we prepared a novel carboxylated porous polymer foam (CPPF) by covalently grafting iminodiacetic acid onto glycidyl methacrylate (GMA)-based PolyHIPEs. CPPF has a large specific surface area of 25.07 m 2 /g and abundant surface hydrophilic carboxyl groups, which give it a lower potential than porous foam without carboxylation treatment (stable at −32 mV when the pH is higher than or equal to 5). The strong electronegativity on the CPPF surface gives it highly effective adsorption of electropositive contaminants. Notably, the CPPF can effectively adsorb various dyes (methylene blue, malachite green, and methyl violet) and heavy metals (Cu 2+ and Cr 3+ ) with adsorption capacities over 500 and 30 mg/g, respectively, which are superior to most reported adsorbents under similar conditions. Furthermore, the CPPF demonstrates great stability and recyclability with removal efficiency higher than 97% after five consecutive adsorption/desorption cycles, indicating its great potential for diverse environmental engineering applications.

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Section: Resultsmentioning

confidence: 99%

Durable Carboxylated Porous Polymer Foam as a High-Performance Adsorbent for Dye and Heavy Metal Ion Removal

Liu

Gao

Zhang

et al. 2023

ACS Appl. Eng. Mater.

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“…Cadmium oxide (CdO) is a pivotal nonbiodegradable n -type semiconductor having a direct band gap of 2.5 eV and an indirect band gap of 1.98 eV . Moreover, the presence of oxygen vacancies in CdO leads to high carrier mobility and a better conductivity approach for good electrocatalytic activity .…”

Section: Introductionmentioning

confidence: 99%

CdO Decorated with Polypyrrole Nanotube Heterostructure: Potent Electrocatalyst for the Detection of Antihistamine Drug Promethazine Hydrochloride in Environmental Samples

et al. 2023

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In the realm of electrochemical sensor application, the development and fabrication of semiconducting metal oxides with the integration of conducting polymers for the trace-level detection of pharmaceutical medicines garnered considerable interest. Herein, we reported facile cadmium oxide decorated with polypyrrole nanotubes fabricated on a glassy carbon electrode (CdO@PPy/GCE) for efficient determination of antihistamine drug promethazine hydrochloride (PMH). The as-synthesized CdO@PPy composite was characterized by various analytical tools like X-ray powder diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, scanning electron microscopy, and X-ray photoelectron spectroscopy. Furthermore, the electrocatalytic activity of the modified electrode for PMH detection was examined by voltammetry and amperometric methods, and the modified electrode exhibited lower charge transfer resistance compared to the bare GCE. Under the optimized condition, the fabricated electrode shows a wide linear range (50−550 μM), better sensitivity (0.13 μAμM −1 cm −2 ), low detection limit (10.83 nM) (S/N = 3), and excellent selectivity and reproducibility toward PMH detection. Moreover, the modified GCE depicted eminent practical ability for PMH detection in lake water and pharmaceutical tablets.

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“…Due to this, sometimes, MPs can be considered as a bioremediation strategy to eliminate contaminants present in the aqueous medium, in the same way composite materials are used to remove organic pollutants from aqueous media. For instance, cotton fiber covered with chitosan [10], the functional organic ligand of 4-tert-Octyl-4-((phenyl)diazenyl)phenol (TPDP) with mesoporous silica [11] and the chemical ligand of N,N-bis(salicylidene)1,2-bis(2-aminophenylthio)ethane (BSBAE) also with mesoporous silica [12] have shown high removal of Remazol Brilliant Red F3B (RR), copper (II) and cadmium (II), respectively. However, if the biota ingests MP with pollutants, they can introduce toxic compounds into the trophic chain, leading to chemical, ecological, and biological alterations in species and ecosystems [5,13], leading to bioaccumulation in organisms [14].…”

Section: Introductionmentioning

confidence: 99%

Sorption of Total Petroleum Hydrocarbons in Microplastics

et al. 2023

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As is the case for many others in the world, Mexican seas face complex pollution challenges; two of the contaminants that require special attention for their prevalence, possible chemical interactions, and relation to the country’s economy are leaked petroleum and microplastics (MP). This research assessed the sorption of total petroleum hydrocarbons (TPH) as fuel oil on microplastics in laboratory and field scenarios. Preliminary tests allowed the development and validation of a methodology to measure the sorbed fuel oil by Soxhlet extraction, with a 99.65% recovery rate. The amount of TPH sorbed in the lab followed the order LDPE > PS > PP > PVC > PET > HDPE, with the highest concentration found on LDPE. The sorption of fuel oil on microplastics is correlated to the surface area of the plastic particles and could also be related to the crystallinity of plastics. Sorption, for all plastics, was consistent with a second-order kinetic model. The analysis of field samples collected on beaches of the Gulf of Mexico varied from 1660 to 35,258 mg/kg MP. It must be noticed that, unlike others, this research quantified a family of contaminants, which could explain the high concentrations observed on microplastics.

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Sustainable ligand-modified based composite material for the selective and effective cadmium(II) capturing from wastewater

Cited by 206 publications

References 109 publications

Durable Carboxylated Porous Polymer Foam as a High-Performance Adsorbent for Dye and Heavy Metal Ion Removal

Durable Carboxylated Porous Polymer Foam as a High-Performance Adsorbent for Dye and Heavy Metal Ion Removal

CdO Decorated with Polypyrrole Nanotube Heterostructure: Potent Electrocatalyst for the Detection of Antihistamine Drug Promethazine Hydrochloride in Environmental Samples

Sorption of Total Petroleum Hydrocarbons in Microplastics

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