Synthesis of MgO/Fe3O4 nanoparticles embedded activated carbon from biomass for high-efficient adsorption of malachite green

Guo, Fei; Jiang, Xiaochen; Li, Xiaolei; Jia, Xiaopeng; Liang, Shuang; Lin, Qian

doi:10.1016/j.matchemphys.2019.122240

Cited by 75 publications

(22 citation statements)

References 53 publications

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“… MOF adsorbents Qmax mg/g Refs. Biochar supported nzvi composite (nzvi/BC) 515 64 ZIF-67 3000 65 Activated carbon with multimodal pore size distribution 144.3 66 UiO-66 133 67 Cellulose nanofibril aerogels 212.7 68 Fe-BTC MOF 177 69 Magnetic graphene oxide decorated with persimmon tannins (Fe3O4/PT/GO) 591.7 70 MIL-10-SO3H 596 71 Chitosan/polyacrylic acid/bentonite composites (CCS/PAA/bnts) 384.62–454.55 72 MIL-100(Fe) 485 73 Fe–Mg bimetallic magnetic activated carbon 4031.9 74 MIL-53(Al)-NH2 141 75 Mesoporous activated biochar (ABC) 1341 76 Magnetic NH2-MIL-101(Al) 274.4 77 Graphene oxide/aminated lignin aerogels 113.5 78 Fe3O4@AMCA-MIL-53(Al) nanocompos...…”

Section: Resultsmentioning

confidence: 99%

Comparative removal of hazardous cationic dyes by MOF-5 and modified graphene oxide

Mohammadi

Moghanlo

Kazemi

et al. 2022

Sci Rep

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Among cationic dyes, malachite green (MG) is commonly used for dying purposes and also as an inhibitor in aquaculture, food, health, and chemical industries due to its cytotoxic effects. Therefore, MG removal is essential to keep the ecosystem and human health safety. Adsorption is a viable and versatile option and exploring efficient adsorbents have high priority. Herein, MOF-5 and aminated corn Stover reduced graphene oxide (ACS-RGO) of typical adsorbents of metal–organic-frameworks (MOFs) and carbon-based classes were studied for MG removal. MOF-5 and ACS-RGO had a specific surface area and total pore volume of 507.4 and 389.0 m2/g, and 0.271 cm3/g and 0.273 cm3/g, respectively. ACS-RGO was superior for MG adsorption and the kinetic rate coefficient for ACS-RGO was ~ 7.2 times compared to MOF-5. For ACS-RGO, MG removal remained high (> 94%) in a wide range of pH. However, dye removal was pH-dependent for MOF-5 and increased from ~ 32% to ~ 67% by increasing pH from 4 to 12. Increasing dye concentration from 25 mg/L to 100 mg/L decreased adsorption by MOF-5 and ACS-RGO for ~ 30% and 7%, respectively. Dye removal was evident in a few tens of seconds after adding ACS-RGO at doses above 0.5 g/L. A significant loss of 46% in adsorption was observed by decreasing MOF-5 mass from 1 to 0.1 g/L. ACS-RGO removed MG in multilayer with an exceptional adsorption capacity of 1088.27 mg/g. In conclusion, ACS-RGO, and MOF-5 showed promising kinetic rates and adsorption capacities toward MG.

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Section: Resultsmentioning

confidence: 99%

Comparative removal of hazardous cationic dyes by MOF-5 and modified graphene oxide

Mohammadi

Moghanlo

Kazemi

et al. 2022

Sci Rep

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“…The adsorption capacity of the Ca-doped adsorbent can reach 4.64 mmol/g in a normal temperature and pressure environment, and metal-doped porous carbon has excellent CO 2 /N 2 selectivity and recycling performance under simulated flue gas conditions. 171 The group functionalization performance of biochar is shown in Figure 10.…”

Section: Functional Modification Of Biocharmentioning

confidence: 99%

Functional Biochar Synergistic Solid/Liquid-Phase CO₂ Capture: A Review

et al. 2022

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Nowadays, global warming is becoming more and more serious, while CO 2 capture technologies have emerged endlessly, with methods of solid-phase CO 2 capture for physical adsorption and liquidphase CO 2 capture for chemical absorption. Biochar has been widely used to achieve CO 2 sequestration and emission reduction as a result of its wide range of precursor sources, strong adsorption, and rich surface functional groups. It reviews the existing post-combustion CO 2 capture solutions, focusing on the analysis of CO 2 capture technologies based on liquid-phase ammonia/monoethanolamine and solid-phase carbonbased materials. The former (liquid phase) is with limitation of capture efficiency as a result of strong volatility and thermal degradation, while the latter (solid phase) is accompanied by limited CO 2 /N 2 selectivity. The realization of synergy between the two would "learn from each other's strengths" to improve the CO 2 adsorption ability. The review puts forward the concept of "biochar-functionalized crosslinking synergistic ammonia CO 2 capture technology", which not only broadens the idea of multi-level utilization of biochar, significantly improving the liquid-phase (ammonia) CO 2 capture efficiency, but also has practical significance for the utilization of biomass waste and reduction of CO 2 emissions.

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“…Panchakarla reported previously that the diamagnetic nature oxides exhibit RTFM due to defects (oxygen vacancies) present at the surface of the nanoparticles grains [95,96]. Many reports have suggested that the room temperature ferromagnetism has been observed at the nanoscale nonmagnetic metal oxides due to anionic or cationic vacancy or size of the nanoparticles or annealing and anisotropy nature of nanomaterials [97][98][99][100][101]. Herein, the nanoparticles at the annealed temperature 700°C show very week ferromagnetic nature at ambient conditions with saturation magnetization value (M s ) of 57.004 E −3 emu/g and coercivity value (H ci ) is 1604.5 Oe owing to the oxygen vacancies (F + centers) have been increased with increasing annealing temperature, and while comparing with photoluminescence spectra of MgO nanoparticles, it has strong green, blue, and violet emissions.…”

Section: M-h Loop Characterization (Magnetic Property)mentioning

confidence: 99%

Moringa oleifera Leaf Extract-Mediated Green Synthesis of Nanostructured Alkaline Earth Oxide (MgO) and Its Physicochemical Properties

Venkatachalam

Jesuraj

Kalainathan

2021

Journal of Chemistry

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The magnesium oxide nanoparticles (MgO NPs) were prepared from Moringa oleifera leaf extract. Phytochemicals are derived from plant extract which are served as stabilizing and capping agents. This green route has been attracted owing to speed, reliable, and eco-friendly and cost-effective one. The synthesized magnesium oxide nanoparticles were taken into three different calcination temperatures (500, 600, and 700°C). The powder X-ray diffraction (PXRD) study shows a pure phase of face-centered cubic structure. Periclase MgO nanoparticles were prepared. The optical band gap of MgO nanoparticles is 4.5 eV, and its absorption in the UV region was observed by UV-visible spectroscopy (UV-Vis). Photoluminescence spectra have exhibited multicolor emissions were being at UV and visible region due to defect centers (F centers) of MgO nanoparticles. EDX (energy dispersive X-ray spectrum) has given the stoichiometric ratio of Mg and O. The functional groups have been studied by Fourier transformed infrared spectroscopy (FTIR), surface morphology transformation has been identified by scanning electron microscopy (SEM) studies, and VSM measurements have given the information of diamagnetic nature of MgO nanoparticles. H-R TEM micrographs have confirmed that particles were in nanorange matched with XRD report. Polycrystalline nature has been observed pattern information. TG-DSC characterization revealed phase transition and weight loss information. D-band and G-band of MgO nanoparticles are studied by micro-Raman analysis. Dielectric analysis has proven that MgO nanoparticles will be a promising candidate for linear dielectric ceramics, thermistor. The present resent studies have revealed that MgO powder will be an economical and promising candidate in superconductor, optoelectronic device, and energy storage applications.

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Synthesis of MgO/Fe3O4 nanoparticles embedded activated carbon from biomass for high-efficient adsorption of malachite green

Cited by 75 publications

References 53 publications

Comparative removal of hazardous cationic dyes by MOF-5 and modified graphene oxide

Comparative removal of hazardous cationic dyes by MOF-5 and modified graphene oxide

Functional Biochar Synergistic Solid/Liquid-Phase CO₂ Capture: A Review

Moringa oleifera Leaf Extract-Mediated Green Synthesis of Nanostructured Alkaline Earth Oxide (MgO) and Its Physicochemical Properties

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Synthesis of MgO/Fe3O4 nanoparticles embedded activated carbon from biomass for high-efficient adsorption of malachite green

Cited by 75 publications

References 53 publications

Comparative removal of hazardous cationic dyes by MOF-5 and modified graphene oxide

Comparative removal of hazardous cationic dyes by MOF-5 and modified graphene oxide

Functional Biochar Synergistic Solid/Liquid-Phase CO2 Capture: A Review

Moringa oleifera Leaf Extract-Mediated Green Synthesis of Nanostructured Alkaline Earth Oxide (MgO) and Its Physicochemical Properties

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Product

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Functional Biochar Synergistic Solid/Liquid-Phase CO₂ Capture: A Review