Removal of malachite green from the aqueous solutions using polyimide nanocomposite containing cerium oxide as adsorbent

Ghanbary, Fatemeh; Jafarnejad, Ehsan

doi:10.1080/24701556.2017.1357598

Cited by 10 publications

(5 citation statements)

References 48 publications

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“…The pseudo-first-order and Elovich models yielded calculated values close to their theoretical counterparts, as well as high R² (Elovich model) and very high SSE (both). Similar results have been reported by others, e.g., in the use of nanocomposites for MG adsorption (Rajabi et al 2019), MG adsorption by copper oxide-loaded, activated carbon (Sharifpour et al 2019), MG removal by polyurethane functionalized by salicylate (El-Bouraie 2015) and MG adsorption in a polyamide nanocomposite containing ceric oxide as the adsorbent (Ghanbary & Jafarnejad 2017).…”

Section: Kinetics and Adsorption Modelingsupporting

confidence: 87%

Malachite green removal using ionic flocculation

Teixeira

Melo

Fernandes

et al. 2022

Water Practice and Technology

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The use of ionic flocculation is proposed to remove malachite green (MG), in this case, from water. A surfactant with the polluted solution and calcium is added. The surfactant-calcium reaction forms a precipitate, which aggregates into flocs on agitation. The flocs adsorb MG, which can then be removed by centrifugation. Ionic flocculation was assessed by varying parameters including: surfactant and MG concentrations, electrolyte content, pH, contact time, etc. The isotherm and adsorption kinetic models that best fit this process are the Langmuir and pseudo-second order models, respectively. MG removal efficiency of 96% was obtained at pH 9, with surfactant concentration 1,400 mg L−1, MG concentration 10 mg L−1 and contact time 10 minutes. The process has potential for pollutant removal.

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Section: Kinetics and Adsorption Modelingsupporting

confidence: 87%

Malachite green removal using ionic flocculation

Teixeira

Melo

Fernandes

et al. 2022

Water Practice and Technology

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show abstract

“…2a). Further, XRD analysis confirmed the crystallinity of the nanomaterials through the signatory cerium peaks obtained at crystal planes 111, 200, 220 and 311 the crystalline nature of the synthesized nanomaterial was assessed concerning the previously reported work and the data shows that the bare CNP has 98 % crystallinity whereas cAP-CNP was 91.8% (Ghanbary & Jafarnejad, 2017) (Fig. 2b).…”

Section: Discussionsupporting

confidence: 60%

Augmenting Antioxidative Properties of Cerium Oxide Nanomaterial with Andrographis paniculata Mediated Synthesis and Investigating its Biomedical Potentials.

Kumaria,

Shivam,

Manohar Aeshala

et al. 2024

Nanofab

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Extensive interest has been poured into the production of sustainable nanomaterials. We report the fabrication of cerium oxide nanomaterial (CNP)utilizing crude extracts of Andrographis paniculata. This synthesis route devises a sustainable approach with the implementation of a less energy-intensive process and avoids hazardous chemicals. The crude extracts of Andrographis paniculata (cAP) act simultaneously as a reducing and stabilizing agent and support the nucleation of CNP leading to unique physiochemical properties. The cAP-CNP conjugate is found in the size range of 150nm with signature UV peaks at 310 nm indicating Ce+4 surface oxidation state. Scanning electron microscope and X-ray diffraction analysis of cAP-CNP conjugate indicates the ultra-structure of dry powder and polycrystalline signature peaks with 111, 200, 220 and 311 crystal planes indicating pure cubic fluorite structure. Further cAP-CNP conjugate also reports high H2O2(80%)and moderate superoxide anion (40%) antioxidative scavenging. The cAP-CNPnanomaterial conjugates exhibit excellent antimicrobial behavior with a reduction of 60% E.colibacterial growth. Similarly,cAP-CNP conjugate exhibits alpha-amylase inhibition (80%) activity indicating its prospects in diabetics’management.In-vitro analysis results the biocompatibility with 85% skin keratinocyte cell growth. Anti-inflammatory assay revealed IL-6 (89%) and TNF-alpha (81%) reduced expression. Overall, cAP-CNP demonstrates a sustainable approach to prospective biomedical applications.

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“…The solution was stirred for 6 h to check the degradation rate. The dye decolorization process was analyzed by UV-vis spectrophotometer (Thermo Scientific Multiskan EX) [49]. The prepared dye solution (0.1 mg/mL) was used as the control.…”

Section: Preparation Of Cationic Dyesmentioning

confidence: 99%

Green Synthesis of Cobalt-Doped CeFe2O5 Nanocomposites Using Waste Gossypium arboreum L. Stalk and Its Application in the Removal of Toxic Water Pollutants

Koul,

Singhvi,

Kim

2024

Preprint

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Currently, there is a tenacious need to find new ways to purify water by eliminating bacterial biofilms, textile dyes, and toxic water pollutants. These contaminants pose significant risks to both human health and the environment. To address this issue, in this study, we have developed an eco-friendly approach that involves synthesizing Cobalt-doped Cerium Iron Oxide (CCIO) nanocomposite (NC) using an aqueous extract of Gossypium arboreum L. stalks. The resulting nanoparticles can be used to effectively purify water and tackle the challenges associated with these harmful pollutants. Nanoparticles excel in water pollutant removal by providing high surface area for efficient adsorption, versatile design for simultaneous removal of multiple contaminants, catalytic properties for organic pollutant degradation, and magnetic features for easy separation, offering cost-effective and sustainable water treatment solutions. CCIO nanocomposite has been synthesized by green co-precipitation method due to biomolecules and co-enzymes present in the aqueous extract of Gossypium arboreum L. stalk; a single-step procedure completed in 5 h reaction time. Further, the synthesis of nanocomposites was confirmed by various characterization techniques such as Fourier-transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), Field emission scanning electron microscopy (FE-SEM), Transmission electron microscopy (TEM), Thermogravimetric analysis (TGA), Dynamic light scattering (DLS), and Energy Dispersive X-Ray (EDX). CCIO NCs were discovered to have a spherical shape and an average size of 40 nm. Based on DLS zeta potential analysis, CCIO NCs were found to be anionic. Also, CCIO NCs showed significant antimicrobial and antioxidant activity. Overall, considering the physical and chemical properties, the application of CCIO NCs in the adsorption of various dyes (~91 %) and water pollutants (chromium = ~ 60 %) has been considered since they exhibit great adsorption capacity owing to their microporous structure which can be a step forward in water purification.

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Removal of malachite green from the aqueous solutions using polyimide nanocomposite containing cerium oxide as adsorbent

Cited by 10 publications

References 48 publications

Malachite green removal using ionic flocculation

Malachite green removal using ionic flocculation

Augmenting Antioxidative Properties of Cerium Oxide Nanomaterial with Andrographis paniculata Mediated Synthesis and Investigating its Biomedical Potentials.

Green Synthesis of Cobalt-Doped CeFe2O5 Nanocomposites Using Waste Gossypium arboreum L. Stalk and Its Application in the Removal of Toxic Water Pollutants

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