Synthesis and characterizations of a novel FeNi3/SiO2/CuS magnetic nanocomposite for photocatalytic degradation of tetracycline in simulated wastewater

Nasseh, Negin; Taghavi, Lobat; Barikbin, Behnam; Nasseri, Mohammad Ali

doi:10.1016/j.jclepro.2018.01.052

Cited by 140 publications

(43 citation statements)

References 44 publications

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“…Furthermore, their degradative properties have been shown to increase with the introduction of magnetic materials in the composite. 137,138 Recently, magnetic FeNi 3 /SiO 2 /CuS has been synthesized for tetracycline removal, 139 while magnetic fluorinated mesoporous graphitic carbon nitride 140 and a magnetic TiO 2 -GO-Fe 3 O 4 137 have been synthesized for amoxicillin removal.…”

Section: Advanced Applications Of Photocatalystsmentioning

confidence: 99%

Nano-based adsorbent and photocatalyst use for pharmaceutical contaminant removal during indirect potable water reuse

et al. 2020

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Increasing human activity, including commercial and noncommercial use of pharmaceuticals, personal care products, and agricultural products, has introduced new contaminants that can be challenging to remove with currently available technologies. Pharmaceuticals, in particular, can be especially challenging to remove from the water supply and can pose great harm to people and local ecosystems. Their highly stable nature makes their degradation with conventional water treatment techniques difficult, and studies have shown that even advanced treatment of water is unable to remove some compounds. As such, decontamination of water from pharmaceuticals requires the development of advanced technologies capable of being used in indirect and direct potable water reuse. In this review, we discuss pharmaceutical removal in indirect potable water treatment and how recent advancements in adsorption and photocatalysis technologies can be used for the decontamination of pharmaceutical-based emerging contaminants. For instance, new materials that incorporate graphene-based nanomaterials have been developed and shown to have increased adsorptive capabilities toward pharmaceuticals when compared with unmodified graphene. In addition, adsorbents have been incorporated in membrane technologies, and photocatalysts have been combined with magnetic material and coated on optical fibers improving their usability in water treatment. Advancements in photocatalytic material research have enabled the development of highly effective materials capable of degradation of a variety of pharmaceutical compounds and the development of visible-light photocatalysts. To understand how adsorbents and photocatalysts can be utilized in water treatment, we address the benefits and limitations associated with these technologies and their potential applicability in indirect potable water reuse plants.

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Section: Advanced Applications Of Photocatalystsmentioning

confidence: 99%

Nano-based adsorbent and photocatalyst use for pharmaceutical contaminant removal during indirect potable water reuse

et al. 2020

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“…Indeed, magnetic composites can facilitate the removal of the photocatalysts from water. For example, magnetic FeNi 3 /SiO 2 /CuS [ 52 ] can be used to remove tetracycline from wastewater, while to remove amoxicillin magnetic fluorinated mesoporous graphitic carbon nitride [ 53 ] and a magnetic TiO 2 -GO-Fe 3 O 4 [ 54 ] can be used. Also, the immobilization of semiconductors on optical fibers enhanced their recovery [ 51 ].…”

Section: Hmps Obtained By Coupling Membrane Processes With Photocamentioning

confidence: 99%

Application of Hybrid Membrane Processes Coupling Separation and Biological or Chemical Reaction in Advanced Wastewater Treatment

2020

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The rapid urbanization and water shortage impose an urgent need in improving sustainable water management without compromising the socioeconomic development all around the world. In this context, reclaimed wastewater has been recognized as a sustainable water management strategy since it represents an alternative water resource for non-potable or (indirect) potable use. The conventional wastewater remediation approaches for the removal of different emerging contaminants (pharmaceuticals, dyes, metal ions, etc.) are unable to remove/destroy them completely. Hybrid membrane processes (HMPs) are a powerful solution for removing emerging pollutants from wastewater. On this aspect, the present paper focused on HMPs obtained by the synergic coupling of biological and/or chemical reaction driven processes with membrane processes, giving a critical overview and particular emphasis on some case studies reported in the pertinent literature. By using these processes, a satisfactory quality of treated water can be achieved, permitting its sustainable reuse in the hydrologic cycle while minimizing environmental and economic impact.

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“…This might be ascribed to the enhancement of the transition products at higher CEF amounts, which led to reduce the potent hydroxyl radicals in the solution and also the degradation rate constants. [71]…”

Section: Kinetic Studymentioning

confidence: 99%

High Performance Magnetically Separable G‐C₃N₄/γ‐Fe₂O₃/TiO₂ Nanocomposite with Boosted Photocatalytic Capability towards the Cefixime Trihydrate Degradation under Visible‐Light

2020

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A magnetically separable g‐C3N4/γ‐Fe2O3/TiO2 nanocomposite is synthesized as an intensely effectual visible‐light‐driven photocatalyst. It is fully characterized by FT‐IR, XPS, XRD, VSM, DRS, SEM, TEM, BET, EDS, and elemental mapping techniques. Based on the Tauc plot of (αhν)2 vs. hυ, the value of band gap energy for g‐C3N4/γ‐Fe2O3/TiO2 is estimated to be 2.6 eV, which proves the high capability of the catalyst to enhance the photoinduced electron‐holes separation and improves its visible‐light photocatalytic performance. The high photocatalytic activity of this catalyst towards the cefixime trihydrate (CEF) degradation, under visible‐light radiation can be ascribed to the synergistic optical effects between g‐C3N4, γ‐Fe2O3, and TiO2. Using central composite design (CCD) based on response surface methodology (RSM), the maximum degradation efficiency of about 98 % was obtained at the optimal conditions comprising the CEF amount of 20 mg/L, photocatalyst value of 0.04 g/L, irradiation intensity of 9 W/m2, and pH of 5.5, at 90 min. Utilizing an innocuous visible‐light source, almost complete mineralization of CEF (based on TOC analysis), using a very low amount of photocatalyst, applying air as the oxidant, and convenient magnetic separation of the catalyst from the reaction media and its ease of recycling for at least seven consecutive runs are the major highlights of this protocol.

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Synthesis and characterizations of a novel FeNi3/SiO2/CuS magnetic nanocomposite for photocatalytic degradation of tetracycline in simulated wastewater

Cited by 140 publications

References 44 publications

Nano-based adsorbent and photocatalyst use for pharmaceutical contaminant removal during indirect potable water reuse

Nano-based adsorbent and photocatalyst use for pharmaceutical contaminant removal during indirect potable water reuse

Application of Hybrid Membrane Processes Coupling Separation and Biological or Chemical Reaction in Advanced Wastewater Treatment

High Performance Magnetically Separable G‐C₃N₄/γ‐Fe₂O₃/TiO₂ Nanocomposite with Boosted Photocatalytic Capability towards the Cefixime Trihydrate Degradation under Visible‐Light

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Synthesis and characterizations of a novel FeNi3/SiO2/CuS magnetic nanocomposite for photocatalytic degradation of tetracycline in simulated wastewater

Cited by 140 publications

References 44 publications

Nano-based adsorbent and photocatalyst use for pharmaceutical contaminant removal during indirect potable water reuse

Nano-based adsorbent and photocatalyst use for pharmaceutical contaminant removal during indirect potable water reuse

Application of Hybrid Membrane Processes Coupling Separation and Biological or Chemical Reaction in Advanced Wastewater Treatment

High Performance Magnetically Separable G‐C3N4/γ‐Fe2O3/TiO2 Nanocomposite with Boosted Photocatalytic Capability towards the Cefixime Trihydrate Degradation under Visible‐Light

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High Performance Magnetically Separable G‐C₃N₄/γ‐Fe₂O₃/TiO₂ Nanocomposite with Boosted Photocatalytic Capability towards the Cefixime Trihydrate Degradation under Visible‐Light