Magnetic supramolecular polymer: Ultrahigh and highly selective Pb(II) capture from aqueous solution and battery wastewater

Wang, Zongwu; Zhang, Jing; Wu, Qing; Han, Xue-Xue; Zhang, Mengna; Liu, Wei; Yao, Xinding; Feng, Jinglan; Dong, Shuying; Sun, Jianhui

doi:10.1016/j.chemosphere.2020.126042

Cited by 20 publications

(4 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Besides the redox activity and surface charge properties (Abdel Maksoud et al 2020 ), low-cost synthesis and non-toxicity (Leone et al 2018 ), high selectivity (Song et al 2018 ; Asadi et al 2020 ; Nisola et al 2020 ; Wang et al 2020c , 2021 ; He et al 2021 ; Luan et al 2021 ), binding specificity (Vishnu and Dhandapani 2021 ), and excellent reusability (D’Cruz et al 2020 ; Hu et al 2020 ; Li et al 2020 ; Ahmad et al 2020b ; Vu and Wu 2020 ; Wang et al 2020c ; Nkinahamira et al 2020 ; Tabatabaiee Bafrooee et al 2021 ), a key feature of magnetic nanoadsorbents is that they can be separated in situ from adsorption-remediated waters in the form of a magnetic nanoadsorbent(s)–adsorbate(s) sludge by applying a strong enough magnetic field (Ambashta and Sillanpää 2010 ; Zaidi et al 2014 ; Simeonidis et al 2015 ; Moharramzadeh and Baghdadi 2016 ; Wanna et al 2016 ; Tripathy et al 2017 ; Mirshahghassemi et al 2017 ; Yeap et al 2017 ; Augusto et al 2019 ; Kheshti et al 2019a ; Mashile et al 2020 ; Brião et al 2020 ; Balbino et al 2020 ).…”

Section: Magnetic Nanoadsorbentsmentioning

confidence: 99%

Magnetic nanoadsorbents for micropollutant removal in real water treatment: a review

Mudhoo

Sillanpää

2021

Environ Chem Lett

View full text Add to dashboard Cite

Pure water will become a golden resource in the context of the rising pollution, climate change and the recycling economy, calling for advanced purification methods such as the use of nanostructured adsorbents. However, coming up with an ideal nanoadsorbent for micropollutant removal is a real challenge because nanoadsorbents, which demonstrate very good performances at laboratory scale, do not necessarily have suitable properties in in full-scale water purification and wastewater treatment systems. Here, magnetic nanoadsorbents appear promising because they can be easily separated from the slurry phase into a denser sludge phase by applying a magnetic field. Yet, there are only few examples of large-scale use of magnetic adsorbents for water purification and wastewater treatment. Here, we review magnetic nanoadsorbents for the removal of micropollutants, and we explain the integration of magnetic separation in the existing treatment plants. We found that the use of magnetic nanoadsorbents is an effective option in water treatment, but lacks maturity in full-scale water treatment facilities. The concentrations of magnetic nanoadsorbents in final effluents can be controlled by using magnetic separation, thus minimizing the ecotoxicicological impact. Academia and the water industry should better collaborate to integrate magnetic separation in full-scale water purification and wastewater treatment plants.

show abstract

Section: Magnetic Nanoadsorbentsmentioning

confidence: 99%

Magnetic nanoadsorbents for micropollutant removal in real water treatment: a review

Mudhoo

Sillanpää

2021

Environ Chem Lett

View full text Add to dashboard Cite

show abstract

“…On the basis of the kinetic results, it was considered appropriate that the equilibrium times for La 3+ , Ce 3+ , and Y 3+ were 5 h, 6 h, and 6 h, respectively, in the following experiments. For the sake of better understanding the adsorption process, the dynamical experimental data was analyzed by different models, including pseudo-first-order model, pseudosecond-order model, and Elovich model [37][38][39][40]. The models are respectively described in the following Equations.…”

Section: Effect Of Solution Ph On Adsorptionmentioning

confidence: 99%

Adsorption Properties for La(III), Ce(III), and Y(III) with Poly(6-acryloylamino-hexyl hydroxamic acid) Resin

et al. 2020

View full text Add to dashboard Cite

Using polyacrylic resin followed by the substitution reaction with 6-aminohexyl hydroxamic acid, poly(6-acryloylamino-hexyl hydroxamic acid) resin (PAMHA) was successfully synthesized. PAMHA, a spherical resin with the particle size of 0.4 mm, is a novel polyamide hydroxamic acid chelating resin containing acylamino and hydroxamic acid functional groups. A series of influences (pH, contact time, temperature, and the initial concentrations of rare earth ions) were investigated to determine the adsorption properties. The adsorption capacity for La(III), Ce(III), and Y(III) ions were 1.030, 0.962, and 1.450 mmol·g−1, respectively. Thermodynamic and kinetic studies were also carried out to show that the uptake of rare earth ions onto PAMHA fitted well the pseudo-second-order model and Langmuir isotherm, and the adsorption process was spontaneous endothermic. In addition, desorption of rare earth ions was achieved by using 2 mol·L−1 HNO3 and desorption efficiencies for La(III), Ce(III), and Y(III) ions were 98.4, 99.1, and 98.8%, respectively. Properties of PAMHA resin were characterized by scanning electron microscope (SEM), Fourier transform infrared spectrometry (FTIR), and X-ray photoelectron spectrometer (XPS). The results showed that there was coordination between the rare earth ions with PAMHA and rare metal ions were chemically adsorbed on the surface of the PAMHA.

show abstract

“…Motivated by toxic threats of Pb(II) toward the human central nervous system and genital system, a wealth of remediation techniques have been employed to remove Pb(II) from contaminated water, and adsorption stands out for its ease-of-operation, flexible design, and high effectiveness. During the past few decades, diverse efforts have been devoted to fabricating reliable engineered materials, and biochar (BC) obtained from various biomass by thermal decomposition are becoming the boosting issue in the fields owing to its large area, high porous structure, and rich oxygen-containing functional groups (e.g., hydroxyl, carboxyl, and phenolic groups) [ 1 , 2 ]. Heavy metal adsorbents using agricultural and forestry waste such as leaves, rice husks, straw, sawdust, rice straw, and manure pellet as carbon sources [ 1 , 3 , 4 , 5 , 6 ], and heavy metal adsorbents using monosaccharide glucose as precursor using a hydrothermal method [ 7 , 8 ], and biochar (BC) fixed on zero valent iron particles using polysaccharides starch and activated sludge as carbon sources for the removal of Cr(VI) and Pb(II) from water all have been prepared successfully [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

“…Both morphological, chemical, and magnetic characterizations, and batch adsorption experiments were conducted. The objectives of this research were the following: (1) to fabricate MBC by one-step pyrolysis method targeting the 3R of Fenton sludge solid waste and the effective capture of Pb(II) ions; (2) to investigate in detail the adsorption performance of Pb(II) on MBC through routine experiments; (3) to reveal the plausible adsorption mechanism by the FT-IR and XPS technologies; and (4) to verify the great application prospects of MBC in Pb(II)-contaminated wastewater.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Biochar Derived from Fenton Sludge/CMC for High-Efficiency Removal of Pb(II): Synthesis, Application, and Mechanism

et al. 2023

Self Cite

View full text Add to dashboard Cite

Magnetic biochar composites (MBC) were developed by a simple one-step pyrolysis method using Fenton sludge waste solid and carboxymethyl cellulose sodium. Detailed morphological, chemical, and magnetic characterizations corroborate the successful fabrication of MBC. Batch adsorption experiments show that the synthesized MBC owns high-efficiency removal of Pb(II), accompanied by ease-of-separation from aqueous solution using magnetic field. The experiment shows that the equilibrium adsorption capacity of MBC for Pb(II) can reach 199.9 mg g−1, corresponding to a removal rate of 99.9%, and the maximum adsorption capacity (qm) reaches 570.7 mg g−1, which is significantly better than that of the recently reported magnetic similar materials. The adsorption of Pb(II) by MBC complies with the pseudo second-order equation and Langmuir isotherm model, and the adsorption is a spontaneous, endothermic chemical process. Investigations on the adsorption mechanism show that the combination of Pb(II) with the oxygen-containing functional groups (carboxyl, hydroxyl, etc.) on biochar with a higher specific surface area are the decisive factors. The merits of reusing solid waste resource, namely excellent selectivity, easy separation, and simple preparation make the MBC a promising candidate of Pb(II) purifier.

show abstract

Magnetic supramolecular polymer: Ultrahigh and highly selective Pb(II) capture from aqueous solution and battery wastewater

Cited by 20 publications

References 42 publications

Magnetic nanoadsorbents for micropollutant removal in real water treatment: a review

Magnetic nanoadsorbents for micropollutant removal in real water treatment: a review

Adsorption Properties for La(III), Ce(III), and Y(III) with Poly(6-acryloylamino-hexyl hydroxamic acid) Resin

Magnetic Biochar Derived from Fenton Sludge/CMC for High-Efficiency Removal of Pb(II): Synthesis, Application, and Mechanism

Contact Info

Product

Resources

About