Chemically modified vermiculite clay: a means to remove emerging contaminant from polluted water system in developing nation

Adewuyi, Adewale; Oderinde, R. A.

doi:10.1007/s00289-018-2643-0

Cited by 28 publications

(13 citation statements)

References 47 publications

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“…Eucalyptus wood pulp was used to derive cellulose nanocrystals before application to modify the vermiculite as previously described (Adewuyi & Oderinde, ). Briefly, a mixture of cellulose and sulphuric acid was stirred for 25 min, hydrolyzed and centrifuged moderately to obtain a purified suspension.…”

Section: Methodsmentioning

confidence: 99%

“…The particle size distribution of the unmodified and cellulose nanocrystal modified vermiculite was 0.0359 μm and 10.1600 μm, respectively. Likewise, other properties of VERN have been well characterised (Adewuyi & Oderinde, ).…”

Section: Methodsmentioning

confidence: 99%

“…For example, chitosan‐montmorillonite bionanocomposites were used in drug delivery for the sustained release of aceclofenac (Thakur, Singh, & Singh, ). Recently, vermiculite clay, modified with cellulose nanocrystals, was successfully applied for the removal of 4‐aminoantipyrine from polluted water system (Adewuyi & Oderinde, ).…”

Section: Introductionmentioning

confidence: 99%

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Salubrious effects of a vermiculite–cellulose‐based bionanocomposite on oxidative stress indices and histomorphology of male Wistar rats

et al. 2019

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There is a current interest from the food packaging, biomedical and agricultural sectors in hybrid materials formed from clays and natural polymeric compounds. However, research investigating the toxicity of vermiculite–cellulose nanocrystal (VERN) hybrid on the testes of Wistar rats is rare. Twenty rats, divided into control and treatment groups, were orally administered distilled water, 5, 10, and 20 mg/kg bw VERN daily for two consecutive weeks. At the termination of experiments, the testicular organo‐somatic index, superoxide dismutase, catalase, and gamma‐glutamyl transferase activities were not significantly changed by VERN relative to the controls. Contrarily, myeloperoxidase, glutathione peroxidase, and malondialdehyde levels were depleted in the testes of treated rats. Moreso, VERN increased follicle‐stimulating and luteinizing hormones, and decreased testosterone levels at the 20 mg/kg dose. Histology of the testes revealed healthy looking Leydig cells at the doses of 5 and 10 mg/kg VERN. Overall, these results indicate that oral exposure of VERN was not overly deleterious to the redox and structural histoarchitecture in the testes of rats.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Salubrious effects of a vermiculite–cellulose‐based bionanocomposite on oxidative stress indices and histomorphology of male Wistar rats

et al. 2019

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“…Due to the SO 3 group, the symmetric/asymmetric stretching vibration is detected at 1020-1090 cm À1 , 32 and a typical band at 3000 cm À1 is due to the hydroxyl group. 34 FTIR results of neat and clay reinforced SPIs nanocomposite membrane are illustrated in Figure 4.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of clay‐armored coatable sulfonated polyimide nanocomposites as robust polyelectrolyte membranes

Ali

Said

et al. 2021

J of Applied Polymer Sci

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Herein, coatable sulfonated polyimide (SPI) and clay-reinforced SPI membranes SPI-clay 3%, SPI-clay 5%, and SPI-clay 7% were successfully fabricated by one-step high temperature via direct imidization method. The membranes were cast as a coatable thin film using a solution casting method and grafted vermiculite clay nanoparticle were incorporated into the neat SPI as reinforcement by the sonication method. Three different formulated nanocomposite membranes were investigated using different characterization techniques such as Fourier transform infrared spectroscopy as peaks at 1166 and 1227 cm À1 confirmed successful sulfonation. In Proton ( 1 H) NMR synthesis of SPI confirmed as aromatic proton at 7.3-8.8 ppm depicts successful sulfonation and X-ray diffraction results confirmed the crystalline structure of clay, as its content increased (7%) clear diffraction peak arises at 6 and 25 . Scanning electron microscopy (SEM) provides information about surface morphology of clay reinforced SPI membranes, and SEM micrographs shown uniform dispersion of clay nanofillers and developed easy transfer of electron. Thermogravimetric analysis was performed to investigate the thermal stability of synthesized films, results of thermographs shown degradation in the range of 510-600 C. Different physicochemical parameters employed and their results show the effectiveness of synthesized clay reinforced SPI membranes. Water uptake (WU%) about 0.96%, hydrolytic about 98 h and oxidative stability up to 80 C, ions exchange capacity about 3.16 mmol/g for synthesized clay reinforced SPI membranes. Measurement regarding Dimensional changes was also investigated and dimensional changes (1.557 Δt/Δl). All these results reveal that the clay-reinforced coatable SPI membranes are a promising material for polymer electrolyte membranes to be used in fuel cell energy applications.

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“…Organic-inorganic polymer materials attract increasing attention in recent years due to their attractive photoelectric, mechanical, and thermal properties. 1,2 As these organic-inorganic hybrid materials with different structural morphology generally increase their novel properties compared to traditional composite materials. 3,4 The benefits of using inorganic nanoparticles are good thermal and mechanical stability, and hardness.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and physicochemical investigation of imide‐functionalized silica nanocomposites

Ali¹,

Ali

Saeed

et al. 2021

J of Applied Polymer Sci

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The incorporation of inorganic nanoparticles into polymers have gained significant attention to improving functional properties. The ultimate nanocomposite behaviors are influenced by many parameters, such as microstructural distribution that are produced during the treatment process. Herein, a hybrid material integrating a modified network into a polyimide PI matrix was produced via the sol-gel method by the reaction of pyromellitic dianhydride, 4, 4-oxydianaline,

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Chemically modified vermiculite clay: a means to remove emerging contaminant from polluted water system in developing nation

Cited by 28 publications

References 47 publications

Salubrious effects of a vermiculite–cellulose‐based bionanocomposite on oxidative stress indices and histomorphology of male Wistar rats

Salubrious effects of a vermiculite–cellulose‐based bionanocomposite on oxidative stress indices and histomorphology of male Wistar rats

Synthesis of clay‐armored coatable sulfonated polyimide nanocomposites as robust polyelectrolyte membranes

Synthesis and physicochemical investigation of imide‐functionalized silica nanocomposites

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