Synthesis of metal-based functional nanocomposite material and its application for the elimination of paracetamol from synthetic wastewater

Rajamehala, M; Pandian, A Muthukumara; Gopalakrishnan, B.

doi:10.1016/j.chemosphere.2022.136530

Cited by 8 publications

(3 citation statements)

References 40 publications

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“…For the metal-based functional nanocomposites, the matrix phase is mainly composed of containing metals, metallic oxide or alloys [118,119]. One kind of typical material is the zinc-oxide (ZnO)-based composite, for example ZnO/SnO 2 , which has been applied to gas sensor firstly [120,121].…”

Section: Composite-based Nanomaterialsmentioning

confidence: 99%

Optically Active Nanomaterials and Its Biosensing Applications—A Review

et al. 2023

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This article discusses optically active nanomaterials and their optical biosensing applications. In addition to enhancing their sensitivity, these nanomaterials also increase their biocompatibility. For this reason, nanomaterials, particularly those based on their chemical compositions, such as carbon-based nanomaterials, inorganic-based nanomaterials, organic-based nanomaterials, and composite-based nanomaterials for biosensing applications are investigated thoroughly. These nanomaterials are used extensively in the field of fiber optic biosensing to improve response time, detection limit, and nature of specificity. Consequently, this article describes contemporary and application-based research that will be of great use to researchers in the nanomaterial-based optical sensing field. The difficulties encountered during the synthesis, characterization, and application of nanomaterials are also enumerated, and their future prospects are outlined for the reader’s benefit.

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Section: Composite-based Nanomaterialsmentioning

confidence: 99%

Optically Active Nanomaterials and Its Biosensing Applications—A Review

et al. 2023

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“…5(c) it can be seen that in case of CTS-TPP/Zn nanocomposite beads, the maximum PCM removal (69.9%) was achieved sharply with 10 mg of beads. The further increase in amount of CTS-TPP/Zn beads could not signi cantly favor the PCM removal because at higher adsorbent doses, the more binding sites were available with limited PCM molecules [19]. The Fe 3 O 4 NPs loaded beads were required in higher quantity (almost 20-25 mg) to provide su cient surface for maximum PCM removal (85.9% for CTS-TPP/Fe and 84.4% for CTS-TPP/Zn-Fe).…”

Section: Effect Of Amount Of Nanocomposite Beadsmentioning

confidence: 99%

“…Researchers have shown a keen interest in biopolymeric materials due to their non-toxic and biodegradable characteristics, as well as the availability of multiple functional groups and their potential antimicrobial properties. Recently, Rajamehala et al (2022) reported that the fabricated TiO 2 /Fe 2 O 3 /chitosan nanocomposite showed almost 90% of PCM removal [19]. However, the lengthy synthesis process has hindered their widespread adoption and adaptability on a large scale.…”

Section: Introductionmentioning

confidence: 99%

Novel fabricated chitosan supported bimetallic nanocomposites for paracetamol removal from homogeneous solutions and heterogeneous mixtures with focused antibacterial studies

Priyadarshi,

Raval,

Barcelo

et al. 2023

Preprint

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Biopolymers infused with bimetallic nanoparticles exhibit a wide range of functionalities necessary for efficiently eliminating diverse water contaminants. However, the protracted production process requires further exploration. As such, this current study seeks to optimize microwave-assisted technique for the facile synthesis of cross-linked chitosan (CTS) supported bimetallic oxide nanoparticles, specifically zinc oxide (ZnO) and iron oxide (Fe3O4), denoted as CTS-TTP/Zn-Fe. The primary objective is to investigate the efficacy of these beads in the removal of Paracetamol (PCM) from single and complex water matrices while also assessing their antibacterial properties. Characterization includes chemical composition, surface structures, thermal stability, and magnetic properties. The experimental results demonstrated that CTS-TPP/Zn-Fe beads achieved a remarkable PCM removal efficiency of approximately 99%, with a Zn:Fe mole ratio of 1:1. The experimental data showed good applicability with Freundlich isotherm and chemisorption-supported rate models (R2>0.9). To evaluate the long-term viability and practicality of these beads, three crucial field applicability tests were conducted. These encompassed competition studies with other pharmaceuticals, desorption investigations for repeated use, and efficiency evaluations in an ionic solution. Collectively, this research provides a comprehensive understanding, spanning from material design to practical applications, with potential relevance for large-scale wastewater treatment when coupled with appropriate flux control measures.

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Mesoporous TiO2 and Fe-containing TiO2 prepared by solution combustion synthesis as catalysts for the photodegradation of paracetamol

Grifasi,

Deorsola,

Fino

et al. 2024

Environ Sci Pollut Res

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Water pollution due to emerging contaminants, e.g., pharmaceuticals, is one of the most frequently discussed issues. Among them, paracetamol received great attention due to its physico-chemical properties, persistence, and adverse environmental effects. Different techniques were employed for its degradation and, among them, photodegradation is considered one of the most suitable to pursue the aim. This work aimed to synthesize mesoporous TiO2, even with the presence of iron, through a one-pot method, with an enhanced ability to abate paracetamol. Precisely, pure and iron-containing (3.5 wt%) TiO2 were successfully obtained employing an uncommon procedure for this kind of material, mainly solution combustion synthesis (SCS). Moreover, a traditional hydrothermal method and a commercial Degussa P25 were also investigated for comparison purposes. The samples were characterized through N2-physisorption at − 196 °C, XRD, XPS, EDX, DR UV-Vis, and FESEM analysis. The catalytic activity was investigated for the abatement of 10 ppm of paracetamol, under UV irradiation in acidic conditions (pH = 3) and in the presence of H2O2. As a whole, the best-performing catalysts were those obtained through the SCS procedure, highlighting a complete removal of the organic pollutant after 1 h in the case of Fe/TiO2_SCS, thanks to its highly defective structure and the presence of metal Fe. To better investigate the performance of both pure and Fe-containing SCS samples, further oxidation tests were performed at pH = 7 and in the absence of H2O2. Noteworthy, in these conditions, the two samples exhibited different behaviors, highlighting different mechanisms depending on the presence or absence of iron in the structure. Finally, a kinetic study was conducted, demonstrating that a first order is suitable for its abatement. Graphical abstract

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Synthesis of metal-based functional nanocomposite material and its application for the elimination of paracetamol from synthetic wastewater

Cited by 8 publications

References 40 publications

Optically Active Nanomaterials and Its Biosensing Applications—A Review

Optically Active Nanomaterials and Its Biosensing Applications—A Review

Novel fabricated chitosan supported bimetallic nanocomposites for paracetamol removal from homogeneous solutions and heterogeneous mixtures with focused antibacterial studies

Mesoporous TiO2 and Fe-containing TiO2 prepared by solution combustion synthesis as catalysts for the photodegradation of paracetamol

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