Efficient detection and adsorption of cadmium(II) ions using innovative nano-composite materials

Awual, Md. Rabiul; Khraisheh, Majeda; Alharthi, Nabeel H.; Luqman, Monis; Islam, Aminul; Karim, Mohammad Rezaul; Rahman, Mohammed M.; Khaleque, Md. Abdul

doi:10.1016/j.cej.2018.02.116

Cited by 387 publications

(46 citation statements)

References 104 publications

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“…Poor water quality and unsustainable supply limits national economic development and can lead to adverse health and economic impacts. Nanotechnology is a key emerging technology with significant potential for innovation in water treatment [1] (e.g., using advanced materials like nanostructured photocatalysts with surface chemistries, band-edge energies and bandgaps that enable selective binding and degradation of targeted contaminants using sunlight [2,3]); using nanostructured carbon-based materials with high electronic conductivity and hierarchical porous structure as electrodes for electrosorption/capacitive deionization to enhance desalination performance [4,5]; engineering the morphology and surface area of electrodes through the use of nanotube arrays or three-dimensional macroporous structures to improve kinetics and mass transfer in electrochemical oxidation [6][7][8][9]; functionalizing the surface of nanomaterials by organic ligands for the efficient detection and adsorption of organic or inorganic materials from contaminated water [10][11][12][13][14][15][16][17][18][19][20], and controlling the size of magnetic nanoparticles to enhance superparamagnetism for low-energy separation and recovery with magnets [21]. The introduction of such advanced materials in water treatment requires an assessment of the potential environmental and human health risks of these materials.…”

Section: Introductionmentioning

confidence: 99%

Release of Ag/ZnO Nanomaterials and Associated Risks of a Novel Water Sterilization Technology

Pang

Mackevica

Tian

et al. 2019

Water

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For water sterilization, a highly effective system utilizing electrophoresis and the antimicrobial properties of Ag/ZnO nanomaterials has been developed. However, the key component of this system, a sterilization carbon cloth containing Ag/ZnO nanomaterials, has not been evaluated with respect to the potential environmental and human health risks associated with the nanomaterials released. In this paper, a recirculation flow system and methodology were developed to study the release of Ag and ZnO during water treatment. Our study showed that the released silver nanoparticles and dissolved Ag from the carbon cloth were 50 µg/L and 143 µg/L in the United States Environmental Protection Agency (EPA) medium, respectively. The release of dissolved Zn in the EPA medium was 33 µg /L. The results indicate that the release of dissolved and nanoparticulate silver from the sterilization carbon cloth exceeded acceptable risk levels in the aquatic environment. However, if the sterilization carbon cloth was pre-washed two days prior to use, the concentration of Ag was below the drinking water limit of 0.1 mg/L. Our study provides important exposure data for a novel water sanitation technology for real-world application in waste water and drinking water treatment, and aid in assuring its safe use.

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Section: Introductionmentioning

confidence: 99%

Release of Ag/ZnO Nanomaterials and Associated Risks of a Novel Water Sterilization Technology

Pang

Mackevica

Tian

et al. 2019

Water

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“…In particular, toxic metal ions can accumulate in the human body and in the environment. A number of studies have been reported to detect and absorb these metals ions [23][24][25], and different standards and regulations have been adopted to check the possible leaching of the materials. EN 12457:2004 is the adopted standard in Europe and is constituted by four parts, in which different grain sizes and the Liquid/Solid (L/S) ratio are considered.…”

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confidence: 99%

Grain Size Effect in Elution Test of Electric Arc Furnace Slag

et al. 2020

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In this paper we discuss the effects of deslagging practices and the size of electric arc furnace (EAF) slags on structural, microstructural, composition and leaching tests. The samples were collected from seven steelmakers located in Brescia (Lombardy Region, Italy). Nine granularity fractions of four samples were tested to evaluate the influence of the granularity on the leaching tests. The results showed that, in general, the release of the elements arises when the size of the particle decreases, except in one sample, in which vanadium and zinc displayed the opposite trend. X-ray diffraction results suggest that behavior may be ascribed to the effect of the grinding, which causes a different percentage of the phases in the various fractions. In conclusion, the possible effects of the size should also be carefully considered when defining new leaching test requirements for EAF slags.Appl. Sci. 2020, 10, 477 2 of 10 as concrete aggregates and bituminous mixtures (see for example [8,[10][11][12]). Indeed, it was shown that aggregates containing EAF slags have excellent physical and chemical characteristics, and thus can be used in cement-treated materials [13]. EAF slags are also used in wastewater treatment [14][15][16], CO 2 sequestration [17], agriculture fertilizer or remedy for soil acidity [18], and reinforcing filler for composite materials [19,20]. The recycling of steel slag may be restricted because of the presence of potentially toxic elements-like Cr, V, Ba and Mo [21]-and leaching tests are mandatory to verify the release of toxic elements in the water [22]. In particular, toxic metal ions can accumulate in the human body and in the environment. A number of studies have been reported to detect and absorb these metals ions [23][24][25], and different standards and regulations have been adopted to check the possible leaching of the materials. EN 12457:2004 is the adopted standard in Europe and is constituted by four parts, in which different grain sizes and the Liquid/Solid (L/S) ratio are considered. Indeed, the grinding procedure leads to the formation of a variable amount of dust and small particle size that can significantly affect the results [26]. Moreover, the slag chemical composition and phases are also relevant.Literature reports the effects of slagging procedures on the chemical, mineralogical, morphological structure and leaching [22,27]. The optimization and control of slag composition during the steelmaking process is very difficult because of different factors, as reviewed by Luz et al. [9]. The leaching behavior of aged steel slags has also been reported by Engström et al. [28]. Gelfi et al. [29] showed the effect of rapid cooling on the microstructure of slags and the formation of amorphous slag, determining a low release of Cr in the leaching tests. The release of Ba, V, and Cr have also been related to the presence of a large amount of hydraulic phases, and the addition of SiO 2 during the slagging operation has been suggested [21,30] to promote the formation of gehlenite. Cirilli a...

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“…c, the response time of projected Y 3+ ion sensor based on C‐PMMA/CNTs e /binder/GCE is around 40 s. Thus, this 40 s. is necessary by the Y 3+ ion sensor to result the equilibrium steady sate I‐V response. A study of similar research work is demonstrated in Table based on the sensitivity, DL and LDR. As it is found in Table , the projected Y 3+ ion sensor is performed well enough.…”

Section: Resultsmentioning

confidence: 99%

Nanocomposite Containing Cross‐linked Poly(Methyl‐Methacrylate)/Multiwall Carbon Nanotube as a Selective Y³⁺ Sensor Probe

et al. 2018

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This article explains how composite thin films, that are made of both cross‐linked poly(methyl methacrylate) (PMMA) and reinforced with multi‐walled carbon nanotube (CNTs), are designed, fabricated and developed for selective cationic sensing applications. The C‐PMMA‐CNTsa‐e nanocomposites were prepared by in situ cross‐linking reaction technique using 4,4′‐diaminobiphenyl (DABP) as the cross‐linking agent. Variable loading of CNTs varied from 2 to 40 wt% was utilized during the cross‐linking process. The nanocomposite films have been structurally characterized by Fourier transform infrared and XRD and the results confirm the incorporation of CNTs in the C‐PMMA matrix, while the dispersion of CNTs in C‐PMMA was characterized using SEM and TEM. The dispersion of CNTs in the composites was excellent, even at high CNTs loading as indicated by SEM and TEM. TEM images of C‐PMMA‐CNTs nanocomposites reveal a core‐shell structure in which CNTs as the core and C‐PMMA as the shell. The thermal features of the nanocomposite films were investigated through their TGA and DTG data. The results confirmed the importance of CNTs content in enhancing the thermal stability of the nanocomposite. The desired yttrium (Y3+) cation sensor was fabricated using glassy carbon electrode coating with a thin uniform layer of synthesized C‐PMMA‐CNTse nanocomposite. A calibration curve was plotted as current vs. concentration of Y3+ ion. The resulted calibration curve is found linear over linear dynamic range of 0.1 nM–0.1 mM. The slope of calibration curve is used to measure the sensitivity (27.2943 μA μM−1 cm−2), limit of detection (3.48 ± 0.17 pM), and limit of quantification (LOQ; 11.6 ± 0.57 pM) of Y3+ cation. It is also found as reliable sensor to detect Y3+ ion in real environmental samples. Considering the contamination of environment, this research might be reliable way for the development of future prospective cationic sensor for the safety of healthcare and ecological fields. POLYM. COMPOS., 40:E1673–E1684, 2019. © 2018 Society of Plastics Engineers

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Efficient detection and adsorption of cadmium(II) ions using innovative nano-composite materials

Cited by 387 publications

References 104 publications

Release of Ag/ZnO Nanomaterials and Associated Risks of a Novel Water Sterilization Technology

Release of Ag/ZnO Nanomaterials and Associated Risks of a Novel Water Sterilization Technology

Grain Size Effect in Elution Test of Electric Arc Furnace Slag

Nanocomposite Containing Cross‐linked Poly(Methyl‐Methacrylate)/Multiwall Carbon Nanotube as a Selective Y³⁺ Sensor Probe

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Efficient detection and adsorption of cadmium(II) ions using innovative nano-composite materials

Cited by 387 publications

References 104 publications

Release of Ag/ZnO Nanomaterials and Associated Risks of a Novel Water Sterilization Technology

Release of Ag/ZnO Nanomaterials and Associated Risks of a Novel Water Sterilization Technology

Grain Size Effect in Elution Test of Electric Arc Furnace Slag

Nanocomposite Containing Cross‐linked Poly(Methyl‐Methacrylate)/Multiwall Carbon Nanotube as a Selective Y3+ Sensor Probe

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Product

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About

Nanocomposite Containing Cross‐linked Poly(Methyl‐Methacrylate)/Multiwall Carbon Nanotube as a Selective Y³⁺ Sensor Probe