Solvent-free synthesis of magnetic biochar and activated carbon through ball-mill extrusion with Fe3O4 nanoparticles for enhancing adsorption of methylene blue

Li, Yanfei; Zimmerman, Andrew R.; He, Feng; Chen, Jianjun; Han, Lujia; Chen, Hao; Hu, Xin; Gao, Bin

doi:10.1016/j.scitotenv.2020.137972

Cited by 159 publications

(68 citation statements)

References 54 publications

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“…In biomedical applications, ferrofluids with Fe 3 O 4 nanoparticles as the magnetic fillers have been fabricated because Fe 3 O 4 nanoparticles exhibit properties superior to those of other materials, such as superparamagnetism, a high surface-to-volume ratio, easy magnetic separation [7], and good biocompatibility. Such fabrication can be found in previous studies related to the structural modification and synthesis method of Fe 3 O 4 nanoparticles [8,9,10]. However, Fe 3 O 4 nanoparticles are likely to agglomerate, resulting in the loss of active surface area and diminished biomedical performance [11], including antimicrobial and liver fibrosis treatments.…”

Section: Introductionmentioning

confidence: 94%

Synthesis of Fe3O4/Ag nanohybrid ferrofluids and their applications as antimicrobial and antifibrotic agents

Taufiq

Saputro

Susanto

et al. 2020

Heliyon

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To date, the search for creating stable ferrofluids with excellent properties for biomedical application is one of the challenging scientific and practical investigations. In this study, novel Fe 3 O 4 /Ag nanohybrid ferrofluids from iron sand were synthesized using a double-layer method. The Fe 3 O 4 /Ag nanocomposites exhibited stable crystallite sizes of 11.8 12.1 nm and 36.8-37.2 nm for Fe 3 O 4 and Ag, respectively. The lattice parameters of the spinel structure Fe 3 O 4 and face-centered cubic Ag were respectively 8.344 Å and 4.091 Å. With increasing Ag amount, the crystallite phase of Ag in the nanocomposites increased from 40.2% to 77.2%. The XPS results confirmed that Fe 3 O 4 /Ag nanocomposites were successfully prepared, where Fe 3 O 4 mixed well with Ag via strong ionic bonding. The FTIR results confirmed the presence of Fe 3 O 4 /Ag, oleic acid, and dimethyl sulfoxide as the filler, first layer, and second layer, respectively. The as-prepared ferrofluids exhibited superparamagnetic behavior, where the saturation magnetization decreased with increasing Ag content. The Fe 3 O 4 /Ag nanohybrid ferrofluids exhibited excellent antimicrobial performance against Bacillus subtilis, Staphylococcus aureus, Escherichia coli, and Candida albicans. More importantly, the Fe 3 O 4 /Ag nanohybrid ferrofluids decreased the progression of liver fibrosisrelated inflammation and fibrogenic activity on hepatic stellate cells.

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Section: Introductionmentioning

confidence: 94%

Synthesis of Fe3O4/Ag nanohybrid ferrofluids and their applications as antimicrobial and antifibrotic agents

Taufiq

Saputro

Susanto

et al. 2020

Heliyon

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“…It is a green chemistry technique because it only uses small amounts of solvents, if any. Moreover, mechanochemical approaches typically generate high yields with a high degree of atom conservation [30,31]. Notably, this technique has been applied in many fields including biomedicine [28].…”

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confidence: 99%

Solvent‐free mechanochemical preparation of graphene oxide–Fe₃O₄ and its application in magnetic dispersive solid‐phase extraction of illegal dyes in food samples

Sha

Liu

Min-qiang³

et al. 2021

J of Separation Science

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A simple, green, and efficient mechanochemical approach was developed herein to prepare tunable magnetic graphene oxide nanoparticles. The obtained nanoparticles were successfully used as adsorbents in a magnetic dispersive solid‐phase extraction method to extract three cationic dyes (i.e., thioflavine T, auramine‐O, and basic orange 2) found in food samples. Our proposed approach also utilized high‐performance liquid chromatography with ultraviolet detection. Several key variables affecting the extraction recovery were investigated. These included the sample pH, amount of extractant, extraction time, sample volume, elution solvent type and volume, and the stability and reusability of the magnetic graphene oxide nanoparticles. Under optimized conditions, the calibration curve was linear at a concentration range of 0.005‐1.0 μg/mL with a correlation coefficient of 0.9992‐0.9996. Moreover, the limits of detection were determined at 0.97‐1.35 μg/mL. The extraction mechanism was investigated via ultraviolet‐visible spectrophotometry and zeta‐potential analyses. The developed method was used to analyze the above‐mentioned cationic dyes in bean products and yellow fish samples. Notably, satisfactory spiked recoveries ranging from 90.7 to 104.9% were achieved.

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“…The dye adsorption in this study followed Langmuir isotherm, thus adsorbent surface area and functional group interaction of the dyes are influencing factors for the adsorption process, instead of solely directly proportion to dye sizes. The result indicated excellent adsorption performance of the ZSM-5 deSil-deAl in decolorisation of CR (322.581 mg/g), RY (434.783 mg/g), MB (588.23 mg/g), RhB (625 mg/g), DB-1 (60.606 mg/g) and DB-14 (243.902 mg/g) which are comparable to well-known adsorbent [40] as presented in Table 6. The excellent performance may be due its rich surface charge, porous structure and high specific surface area.…”

Section: Adsorption To Various Dyesmentioning

confidence: 70%

Enhanced Removal of Soluble and Insoluble Dyes over Hierarchical Zeolites: Effect of Synthesis Condition

et al. 2020

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A hierarchical zeolite ZSM-5 with micro and meso-pore was prepared by optimising the most affecting parameter in sequence of desilication and dealumination. The physicochemical properties of zeolite were characterised with XRD, nitrogen adsorption–desorption, FTIR and SEM. The potential of this zeolite for decolorisation of CR, RY, MB, RhB, DB-1 and DB-14 was evaluated with adsorption isotherm, thermodynamics, kinetics, and influencing parameter for adsorption. The unique modification of ZSM-5 resulted in lower crystallinity, easier porosity control, rich terminal silanol and unbridged silanol groups which assisted in higher adsorption capacity. The adsorption capacity of the optimum ZSM-5 was 323, 435, 589, 625, 61 and 244 mg/g for CR, RY, MB, RhB, DB-1 and DB-14, respectively. The dye adsorption progressed through pseudo-first-order kinetic and close to the Langmuir model. The adsorption mechanism is proposed mainly through interaction between deprotonated silanol site and the electron-rich dye site.

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Solvent-free synthesis of magnetic biochar and activated carbon through ball-mill extrusion with Fe3O4 nanoparticles for enhancing adsorption of methylene blue

Cited by 159 publications

References 54 publications

Synthesis of Fe3O4/Ag nanohybrid ferrofluids and their applications as antimicrobial and antifibrotic agents

Synthesis of Fe3O4/Ag nanohybrid ferrofluids and their applications as antimicrobial and antifibrotic agents

Solvent‐free mechanochemical preparation of graphene oxide–Fe₃O₄ and its application in magnetic dispersive solid‐phase extraction of illegal dyes in food samples

Enhanced Removal of Soluble and Insoluble Dyes over Hierarchical Zeolites: Effect of Synthesis Condition

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Solvent-free synthesis of magnetic biochar and activated carbon through ball-mill extrusion with Fe3O4 nanoparticles for enhancing adsorption of methylene blue

Cited by 159 publications

References 54 publications

Synthesis of Fe3O4/Ag nanohybrid ferrofluids and their applications as antimicrobial and antifibrotic agents

Synthesis of Fe3O4/Ag nanohybrid ferrofluids and their applications as antimicrobial and antifibrotic agents

Solvent‐free mechanochemical preparation of graphene oxide–Fe3O4 and its application in magnetic dispersive solid‐phase extraction of illegal dyes in food samples

Enhanced Removal of Soluble and Insoluble Dyes over Hierarchical Zeolites: Effect of Synthesis Condition

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Solvent‐free mechanochemical preparation of graphene oxide–Fe₃O₄ and its application in magnetic dispersive solid‐phase extraction of illegal dyes in food samples