An Amphiphilic, Graphitic Buckypaper Capturing Enzyme Biomolecules from Water

Homaeigohar, Shahin

doi:10.3390/w11010002

Cited by 18 publications

(14 citation statements)

References 30 publications

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“…Adsorption is widely used because of its relatively simple design, low cost, and removal of color and other pollutants with great efficiency [19,[24][25][26][27]. Adsorption can be either physisorption (which involves fairly weak (not strong enough) intermolecular forces), or chemical sorption (namely chemisorption), which involves the creation of chemical bonds among the funtioanl groups of pollutants and the surface of the adsorbent materials [20].…”

Section: Introductionmentioning

confidence: 99%

Acid Dye Removal from Aqueous Solution by Using Neodymium(III) Oxide Nanoadsorbents

et al. 2020

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In the current work, neodymium oxide (Nd2O3) nanoparticles were synthesized and characterized by means of X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The major aim/investigation of this research was to fit/model and optimize the removal of Acid Blue 92 (AB92) dye from synthetic effluents (aqueous solutions) using the adsorption process based on neodymium oxide (Nd2O3) nanoparticles. To optimize the adsorption conditions, central composite design (CCD) based on response surface methodology (RSM) was applied. The effects of pH (3–9), adsorbent dosage (0.1–1 g/L), initial concentration of AB92 (100–300 mg/L), and contact time (10–100 min) on the adsorption process were investigated. Apart from equilibrium and kinetic experiments, thermodynamic evaluation of the adsorption process was also undertaken. The adsorption process was found to have the best fitting to Langmuir isotherm model and pseudo-second-order kinetic equation. Also, the process was found to be spontaneous and favorable with increased temperature. The optimal conditions found were: pH = 3.15, AB92 concentration equal to 138.5 mg/L, dosage of nanoadsorbent equal to 0.83 g/L, and 50 min as contact time, which resulted in 90.70% AB92 removal. High values for the coefficient of determination, R2 (0.9596) and adjusted R2 (0.9220) indicated that the removal of AB92 dye using adsorption can be explained and modeled by RSM. The Fisher’s F-value (25.4683) denotes that the developed model was significant for AB92 adsorption at a 95% confidence level.

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Section: Introductionmentioning

confidence: 99%

Acid Dye Removal from Aqueous Solution by Using Neodymium(III) Oxide Nanoadsorbents

et al. 2020

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“…and compositions (polymer, metal oxide, carbon, nanocomposite, biohybrid, etc.) [117,[132][133][134][135][136][137]. Versus the traditional approaches such as chemical vapor deposition, hydrothermal, and template-assisted, electrospinning is an efficient, simple, and low-cost nanofiber production method.…”

Section: D Nanocomposite Nano-adsorbentsmentioning

confidence: 99%

The Nanosized Dye Adsorbents for Water Treatment

Homaeigohar

2020

Nanomaterials

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146

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Clean water is a vital element for survival of any living creature and, thus, crucially important to achieve largely and economically for any nation worldwide. However, the astonishingly fast trend of industrialization and population growth and the arisen extensive water pollutions have challenged access to clean water across the world. In this regard, 1.6 million tons of dyes are annually consumed. Thereof, 10%–15% are wasted during use. To decolorize water streams, there is an urgent need for the advanced remediation approaches involving utilization of novel materials and technologies, which are cost and energy efficient. Nanomaterials, with their outstanding physicochemical properties, can potentially resolve the challenge of need to water treatment in a less energy demanding manner. In this review, a variety of the most recent (from 2015 onwards) opportunities arisen from nanomaterials in different dimensionalities, performances, and compositions for water decolorization is introduced and discussed. The state-of-the-art research studies are presented in a classified manner, particularly based on structural dimensionality, to better illustrate the current status of adsorption-based water decolorization using nanomaterials. Considering the introduction of many newly developed nano-adsorbents and their classification based on the dimensionality factor, which has never been employed for this sake in the related literature, a comprehensive review will be presented.

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“…Therefore, they must be excluded from water streams through different kinds of traditional treatments, such as activated sludge, chemical coagulation, adsorption, and photocatalytic degradation [8]. Superior to the mentioned techniques, adsorption is relatively effective in the creation of a high quality effluent with no harmful byproducts in an energy/cost efficient manner [9][10][11]. This approach allows for exclusion of soluble and insoluble organic, inorganic, and biological water contaminants.…”

Section: Nanomaterials For Adsorption and Photodecompositionmentioning

confidence: 99%

An Overview of the Water Remediation Potential of Nanomaterials and Their Ecotoxicological Impacts

Ghadimi

Zangenehtabar

Homaeigohar

2020

Water

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Nanomaterials, i.e., those materials which have at least one dimension in the 1–100 nm size range, have produced a new generation of technologies for water purification. This includes nanosized adsorbents, nanomembranes, photocatalysts, etc. On the other hand, their uncontrolled release can potentially endanger biota in various environmental domains such as soil and water systems. In this review, we point out the opportunities created by the use of nanomaterials for water remediation and also the adverse effects of such small potential pollutants on the environment. While there is still a large need to further identify the potential hazards of nanomaterials through extensive lab or even field studies, an overview on the current knowledge about the pros and cons of such systems should be helpful for their better implementation.

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An Amphiphilic, Graphitic Buckypaper Capturing Enzyme Biomolecules from Water

Cited by 18 publications

References 30 publications

Acid Dye Removal from Aqueous Solution by Using Neodymium(III) Oxide Nanoadsorbents

Acid Dye Removal from Aqueous Solution by Using Neodymium(III) Oxide Nanoadsorbents

The Nanosized Dye Adsorbents for Water Treatment

An Overview of the Water Remediation Potential of Nanomaterials and Their Ecotoxicological Impacts

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