A facile and high-efficiency strategy towards instantaneous clean-up of positively-charged microcontaminants by regenerative carboxylated sponge

Jin, Lunqiang; Ji, Haifeng; Gao, Yusha; Xu, Tao; Xu, Song; Zhang, Xiang; Liu, Xiaoling; Liang, Feng; Zhao, Weifeng; Zhao, Changsheng

doi:10.1016/j.cej.2020.124301

Cited by 15 publications

(3 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consider HM-20-1.5 as an example: when the initial concentrations of MB solutions were 100, 200, 300, 400, and 500 μmol/L, the adsorption capacities were about 39.85 82.99, 111.08, 122.97, and 128.27 mg/g, respectively. The increased adsorption capacity was attributed to the high concentration of the MB solution promoting the diffusion of MB molecules into the monolith. − Furthermore, the Langmuir and Freundlich models were used to study the interaction between the adsorbent and adsorbate, as shown in Figure S1(b,c) and Tables S7 and S8, and the Langmuir model best described the adsorption process among the two models ( R 2 = 0.965–0.997), indicating that the adsorption data agreed well with the Langmuir model, and the adsorption process of MB was single-molecule adsorption. The calculated maximum adsorption capacities were 10.24, 95.95, 125.50, and 144.63 mg/g for M-20, HM-20-0.5, HM-20-1, and HM-20-1.5, respectively, and these results were very close to the experimental values.…”

Section: Resultsmentioning

confidence: 77%

Poly(acrylic acid-co-methyl methacrylate)-Modified Poly(ether sulfone) Porous Monolith Fabricated Using a Freezing-Induced Phase Separation Method

Yin,

Wei,

Zhang

et al. 2024

ACS Appl. Polym. Mater.

Self Cite

View full text Add to dashboard Cite

Traditional poly(ether sulfone) (PES) membranes and spheres exhibit asymmetrical and non-interconnected porous structures, which results in relatively low mass transfer efficiency and thus limits their applications in separation and adsorption to some extent. In this work, PES-based monolithic materials are fabricated by a simple method termed freezing-induced phase separation (FIPS). The as-prepared monoliths show a uniform and interconnected porous structure, high porosity (73.11−83.32%), and good mechanical properties (Young's modulus higher than 3.70 MPa). A hydrophilic copolymer (poly(2-aminoethyl methacrylate)�PAMA) of acrylic acid (AA) and methyl methacrylate (MMA) is introduced into the monolith, which improved the hydrophilicity and endowed the modified PES-based monolith with a negatively charged surface. The pseudo-ternary PES/PAMA, EtOH, and N,N-dimethylformamide (DMF) systems are studied. The monoliths show a denser and more uniform porous structure when a relatively high PES concentration and PAMA amount are used. The adsorption capacity of monoliths for methylene blue (MB) increases with increasing PAMA content, from 10.26 to 64.38 mg/g. Meanwhile, the adsorption capacity can be further improved by hot water post-treatment, from 64.38 to 108.33 mg/g. Batch adsorption tests indicate that the adsorption behavior of the MB monoliths fit the pseudo-second-order kinetic and Langmuir isotherm models. The dynamic adsorption results indicate that the monoliths could remove MB rapidly and effectively. In addition, the modified PES-based monolith selectively adsorb the cationic dyes in a mixed dye solution and has good recyclability.

show abstract

Section: Resultsmentioning

confidence: 77%

Poly(acrylic acid-co-methyl methacrylate)-Modified Poly(ether sulfone) Porous Monolith Fabricated Using a Freezing-Induced Phase Separation Method

Yin,

Wei,

Zhang

et al. 2024

ACS Appl. Polym. Mater.

Self Cite

View full text Add to dashboard Cite

show abstract

“…2 and 3 ). The DOPAm and DOPA were co-deposited on the MS to form an active vinyl-functionalized polydopamine foundation layer 30 . HMP was covalently decorated on the substrate through in-situ polymerization of monomers acrylic acid (AA) and 2-acrylamido-2-methyl-1-prroanesulfonic acid (AMPS), in a 3:2 (AA:AMPS) mass ratio, based on plasma recalcification time (PRT) in previous work 29 .…”

Section: Resultsmentioning

confidence: 99%

Self-anticoagulant sponge for whole blood auto-transfusion and its mechanism of coagulation factor inactivation

Xu,

Ji,

et al. 2023

Nat Commun

Self Cite

View full text Add to dashboard Cite

Clinical use of intraoperative auto-transfusion requires the removal of platelets and plasma proteins due to pump-based suction and water-soluble anticoagulant administration, which causes dilutional coagulopathy. Herein, we develop a carboxylated and sulfonated heparin-mimetic polymer-modified sponge with spontaneous blood adsorption and instantaneous anticoagulation. We find that intrinsic coagulation factors, especially XI, are inactivated by adsorption to the sponge surface, while inactivation of thrombin in the sponge-treated plasma effectively inhibits the common coagulation pathway. We show whole blood auto-transfusion in trauma-induced hemorrhage, benefiting from the multiple inhibitory effects of the sponge on coagulation enzymes and calcium depletion. We demonstrate that the transfusion of collected blood favors faster recovery of hemostasis compared to traditional heparinized blood in a rabbit model. Our work not only develops a safe and convenient approach for whole blood auto-transfusion, but also provides the mechanism of action of self-anticoagulant heparin-mimetic polymer-modified surfaces.

show abstract

“…According to our previous works, , double-bond-replaced dopamine could be used to modify commercial PU sponge via mussel-inspired chemistry and in situ polymerization with hydrophilic molecules of acrylic acid and sodium p-styrenesulfonate, and the fabricated multifunctional PU sponge adsorbents could continuously and rapidly remove dye molecules from wastewater with high adsorption capacity. However, the prepared PU sponge adsorbents could not remove hydrophobic toxin molecules such as petroleum oil, chloroform, toluene, etc.…”

Section: Introductionmentioning

confidence: 99%

Mussel-Inspired and In Situ Polymerization-Modified Commercial Sponge for Efficient Crude Oil and Organic Solvent Adsorption

Jin

Gao

Huang

et al. 2022

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

Oil spills and pollution of oily wastewater from the industrial field have not only caused serious economic losses but also imposed a huge threat to human beings. To solve these issues, the development of advanced materials and technologies for the purification of oily wastewater has garnered great concern and become a central topic. Hence, a superhydrophobic polyurethane (PU) sponge adsorbent is designed via mussel-inspired coatings by double bonds to PU sponge, followed by in situ polymerization with 1-hexadecene. The prepared PU sponge adsorbent (PU@DB@16ene sponge) showed outstanding mechanical properties including low density, high porosity, and compression recovery ability. Moreover, the prepared PU@DB@16ene sponge showed excellent adsorption of oils and organic solvents (up to 187 g g–1) and exhibited superior recyclability. Particularly, when the PU@DB@16ene sponge was applied in the continuous and rapid separation of oils and organic solvents, it still showed desired properties at a rapid velocity of 8.3 L m–3 s–1. Additionally, the PU@DB@16ene sponge could not only adsorb organic solvents in laboratories but also adsorb crude oil and industrial waxy oil in practice. Therefore, we proposed a simple and convenient method to construct PU sponge absorbents with great application prospects, which would be highly valuable for crude oil and organic solvents cleanup.

show abstract

A facile and high-efficiency strategy towards instantaneous clean-up of positively-charged microcontaminants by regenerative carboxylated sponge

Cited by 15 publications

References 52 publications

Poly(acrylic acid-co-methyl methacrylate)-Modified Poly(ether sulfone) Porous Monolith Fabricated Using a Freezing-Induced Phase Separation Method

Poly(acrylic acid-co-methyl methacrylate)-Modified Poly(ether sulfone) Porous Monolith Fabricated Using a Freezing-Induced Phase Separation Method

Self-anticoagulant sponge for whole blood auto-transfusion and its mechanism of coagulation factor inactivation

Mussel-Inspired and In Situ Polymerization-Modified Commercial Sponge for Efficient Crude Oil and Organic Solvent Adsorption

Contact Info

Product

Resources

About