Magnetic graphene oxide prepared via ammonia coprecipitation method: The effects of preserved functional groups on adsorption property

Cheng, Ying; Yang, Shuyi; E, Tao

doi:10.1016/j.inoche.2021.108603

Cited by 29 publications

(3 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The increase in quantity adsorbed around P P 0 À1 of 0.7-0.9 confirms the mesoporous presence. 48 Regarding the textural properties of GO, the nanomaterial reveals a specific surface area of 1.32 AE 0.05 m 2 g À1 , and pore volume and pore diameter of 0.0052 AE 0.03 cm 3 g À1 and 37.42 AE 0.04 nm, respectively. Similar results were reported by Sabzevari and co-authors (2019) 49 who synthetized GO-nanocomposites containing chitosan and Al 3+ .…”

Section: Scanning Electron Microscopy (Sem)mentioning

confidence: 94%

Methylphenidate adsorption onto graphene derivatives: theory and experiment

et al. 2022

View full text Add to dashboard Cite

show abstract

Section: Scanning Electron Microscopy (Sem)mentioning

confidence: 94%

Methylphenidate adsorption onto graphene derivatives: theory and experiment

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The development of composite materials not only improve the physicochemical stability, but also can enhance their efficiency as an adsorbent. Recently, diverse studies have reported the effects of magnetite on the GO surface in terms of the adsorption performance [21,39,40].…”

Section: Effect Of Magnetite Incorporation Onto Graphene Oxide Surfacementioning

confidence: 99%

Efficient Uptake of Angiotensin-Converting Enzyme II Inhibitor Employing Graphene Oxide-Based Magnetic Nanoadsorbents

Oliveira

Schnorr

Salles

et al. 2023

Water

View full text Add to dashboard Cite

This paper reports a high efficiency uptake of captopril (CPT), employing magnetic graphene oxide (MGO) as the adsorbent. The graphene oxide (GO) was produced through an oxidation and exfoliation method, and the magnetization technique by the co-precipitation method. The nanomaterials were characterized by FTIR, XRD, SEM, Raman, and VSM analysis. The optimal condition was reached by employing GO‧Fe3O4 at pH 3.0 (50 mg of adsorbent and 50 mg L−1 of CPT), presenting values of removal percentage and maximum adsorption capacity of 99.43% and 100.41 mg g−1, respectively. The CPT adsorption was dependent on adsorbent dosage, initial concentration of adsorbate, pH, and ionic strength. Sips and Elovich models showed the best adjustment for experimental data, suggesting that adsorption occurs in a heterogeneous surface. Thermodynamic parameters reveal a favorable, exothermic, involving a chemisorption process. The magnetic carbon nanomaterial exhibited a high efficiency after five adsorption/desorption cycles. Finally, the GO‧Fe3O4 showed an excellent performance in CPT removal, allowing future application in waste management.

show abstract

“…Figure2cshows the XRD pattern of MCN, and the diffraction peaks of Fe 3 O 4 can be observed. However, the corresponding peak of carbon nanomaterial could not be observed in MCN, which may be caused by lower content of carbon nanomaterial in prepared materials 33,34. Fe 2 O 3 and Fe 3 O 4 are selected as two phases, resulting in 6.8% of Fe 2 O 3 and 93.2% of Fe 3 O 4 .…”

mentioning

confidence: 94%

Structural and flow properties of polysulfone/magnetic carbon nanomaterials under magnetic field induction

2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

Magnetic carbon nanomaterial (MCN) was prepared by hydrothermal method using microfluidic mixing of ferric tetroxide solution precursors, which was added into casting membrane solution, and magnetic polysulfone (PSF) composite membranes were prepared by phase inversion process after introducing an external magnetic field to treat the casting membrane solution. Microscope image depicts Fe 3 O 4 nanoparticles are uniformly loaded on carbon nanomaterials composed of graphene oxide and carbon nanotubes, and the MCN was obtained with less agglomeration, less Fe 2 O 3 impurities, and magnetization intensity of 53.17 emu/g, which is slightly lower than that of pure Fe 3 O 4 (68.72 emuÁg À1 ). Microscopic cross-sectional view of the membranes indicate the support pore structure still keep a finger-shaped pore structure but the surface roughness of composite membrane shows an increase in R a value compared with the pristine PSF (6.23 nm). The hydrophilicity of membranes show a marked improvement increased in contact angle (from 73.158 to 51.854 ), which effect the water flux (from 638.49 to 1089.81 LÁm À2 Áh À1 ) and permeability (from 1.42 to 2.57 μm 2 ), while the effective diameter of pore in membranes increase (from 1.3385 to 1.9078 μm) through bubble pressure method, and the rejection of bovine albumin decrease slightly (from 93.03% to 90.13%), but the values all reach over 90%, which show good permeate separation performance.

show abstract

Magnetic graphene oxide prepared via ammonia coprecipitation method: The effects of preserved functional groups on adsorption property

Cited by 29 publications

References 67 publications

Methylphenidate adsorption onto graphene derivatives: theory and experiment

Methylphenidate adsorption onto graphene derivatives: theory and experiment

Efficient Uptake of Angiotensin-Converting Enzyme II Inhibitor Employing Graphene Oxide-Based Magnetic Nanoadsorbents

Structural and flow properties of polysulfone/magnetic carbon nanomaterials under magnetic field induction

Contact Info

Product

Resources

About