Magnetic-silica nanocomposites and the functionalized forms for environment and medical applications: A review

Fatimah, Is; Fadillah, Ganjar; Purwiandono, Gani; Sahroni, Imam; Purwaningsih, Dyah; Riantana, Handy; Avif, Adnan Nur; Sagadevan, Suresh

doi:10.1016/j.inoche.2022.109213

Cited by 36 publications

(7 citation statements)

References 130 publications

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“…Harvesting the UV or visible light of solar energy, using some suitable photocatalyst for the complete decomposition of dye components to CO 2 is challenging but a beneficial process [22–24] . Different types of photocatalysts that can capture the UV‐vis light have been designed for the photochemical decomposition of dye [25–34] . To the best of our knowledge Cu or Fe‐based catalyst abstracted from metal‐based waste are very limited.…”

Section: Introductionmentioning

confidence: 99%

“…[22][23][24] Different types of photocatalysts that can capture the UV-vis light have been designed for the photochemical decomposition of dye. [25][26][27][28][29][30][31][32][33][34] To the best of our knowledge Cu or Fe-based catalyst abstracted from metalbased waste are very limited. Therefore, this present work attempts a new synthetic approach towards the design of CuO or Fe 3 O 4 photocatalyst from E-waste and Fe-rust deposited on filter candles for the photochemical decomposition of various dye components.…”

Section: Introductionmentioning

confidence: 99%

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Iron and Copper Catalysts Derived from Inorganic Waste for Dye Degradation

et al. 2023

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Dyes like methyl violet (MV) and methyl orange (MO) released from textile industries are considered to be water pollutants. Likewise metal waste from electronic devices and from metallurgical industries are causing harmful effects. Therefore, looking into the negative impact of such waste materials herein copper oxide (CuO) and iron oxide (Fe 3 O 4 ) photocatalysts were prepared from electronic and candle waste, respectively materials. The metal oxides were supported on a graphitic carbon matrix obtained from waste tea leaves. The synthesized materials were well characterized using different analytical techniques. The carbon-supported CuO and Fe 3 O 4 catalysts exhibited good photocatalytic activity under UV-light irradiation in the photo-degradation of coloured dyes like methyl orange (MO) and methyl violet (MV). The copper (Cu)-catalyst with band gap like that of titanium dioxide (TiO 2 ) showed superior activity over the iron (Fe)-catalyst under identical conditions. Cu-catalyst was found to degrade the dyes within 10-15 min while it took longer time with Fe-catalyst up to 50 min. The measure of total organic content (TOC) after the dye-degradation study implied that Cu-catalyst can carbonize MV upto 89.6 % within 15 min while the same was found to be less (79.5 %) for MO. The ability of the synthesized photocatalysts from waste materials in dye degradation was monitored through FTIR analysis. The mechanistic study suggested the involvement of both the holes and free radicals in the photooxidation of dye components.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Iron and Copper Catalysts Derived from Inorganic Waste for Dye Degradation

et al. 2023

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“…Silica-coated iron oxide nanoparticles (Fe 3 O 4 @SiO 2 ) are one of the most suitable MNPs to be used as a targeted drug delivery system for high magnetic properties, high stability, and ability to functionalize [27,28]. When iron nanoparticles are coated with silica, this layer-protected MNPs from aggregation and oxidation leads to the physical and chemical stability of MNPs in different applications [29,30].…”

Section: Introductionmentioning

confidence: 99%

Curcumin- and Piperine-Loaded Fe3o4@Sio2 Magnetic Nanoparticles: Synthesis, Characterization, and Comparison of the Effects on Mcf-7 Breast Cancer Cell Line

Rezaeidian

Naseh

Entezari

et al. 2023

Preprint

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“…Moreover, the adsorption efficiency decreases significantly as the amount of adsorbed gas increases with time [14,15]. Silica-based composites have been used in many aspects of photocatalysis [16][17][18]. Therefore, we chose mesoporous silica as the carrier for ethylene adsorption.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic degradation of ethylene by mesoporous nano silica loaded chlorin e6

Jia

Jin

Zhang

et al. 2023

Mater. Res. Express

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Green foods are usually harvested and stored before ripening, but excessive ethylene generated during storage can lead to the loss of vegetables and fruits. Photocatalytic oxidation provides a promising method to remove ethylene and extend the shelf life of green foods. In this study, a mesoporous nanosilica-loaded Ce6 composite nanomaterial (Ce6@SiO2) was designed and synthesized to adsorb ethylene into its pores and then degrade it under visible light illumination. The photosensitizer Ce6 in the mesopore produced large amounts of reactive oxygen species that degraded ethylene. The specific surface area was greatly increased by coating the material on the surface of a sodium alginate (SA) hydrogel membrane. This improved its degradation efficiency and facilitated the adsorption and degradation of ethylene during fruit storage. The ethylene removal capacity was studied by measuring the ethylene concentration and increases in the humidity in Tedlar gas bags. Practical applications were tested by observing color changes and surface decay of tomatoes stored with and without SA/Ce6@SiO2. The results showed the system may be used in practical commercial preservation systems.

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Magnetic-silica nanocomposites and the functionalized forms for environment and medical applications: A review

Cited by 36 publications

References 130 publications

Iron and Copper Catalysts Derived from Inorganic Waste for Dye Degradation

Iron and Copper Catalysts Derived from Inorganic Waste for Dye Degradation

Curcumin- and Piperine-Loaded Fe3o4@Sio2 Magnetic Nanoparticles: Synthesis, Characterization, and Comparison of the Effects on Mcf-7 Breast Cancer Cell Line

Photocatalytic degradation of ethylene by mesoporous nano silica loaded chlorin e6

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