Novel Magnetic Zinc Oxide Nanotubes for Phenol Adsorption: Mechanism Modeling

Elkady, M. F.; Shokry, Hassan; Amer, Wael A.; Salama, Eslam; Algarni, H.; Shaaban, E.R.

doi:10.3390/ma10121355

Cited by 33 publications

(42 citation statements)

References 45 publications

(56 reference statements)

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“…Figure 1B revealed that the XRD pattern of the microwave produced TiO 2 nanoparticles. It was represented that the XRD spectrum of the material is in accordance with the JCPD card number 21-1272 (anatase TiO 2 ) that identify its orientation plane as displayed in Figure 1B (Elkady et al, 2017). The strong identified peaks at 2θ of 25 and 48 identify the anatase phase of prepared TiO 2 .…”

Section: Resultsmentioning

confidence: 52%

Impact of synthesized metal oxide nanomaterials on seedlings production of three Solanaceae crops

Younes

Shokry

Elkady

et al. 2020

Heliyon

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A B S T R A C TProspective involvement of metal oxide nanomaterials as a prominent agriculture practice for improving existing crop production directed the present investigation for synthesizing of ZnO and TiO 2 nanomaterials as an attempt to enhance the transplants production of some Solanaceae crops. The morphological characterizations of the prepared nanomaterials indicated that the hydrothermal synthesized ZnO was produced in nanorod structure with an average aspect ratio of 7. However, SEM and TEM micrographs of microwave prepared TiO 2 evident that it has a nanoparticle structure with an average diameter of 43 nm. The BET results confirmed the high specific areas of the two prepared metal oxide nanomaterials. The two synthesized metal oxide nanomaterials were coated in gel and mixed with the seeds of eggplant, pepper and tomato crops at four concentrations 0, 50, 100 and 150 mg/L, whilst the control seeds were germinated in distilled water without gel-coating. The results pointed to the outstanding effect of TiO 2 and ZnO nanoparticles on germination characters and seedlings growth. The maximum transplants lengths, fresh and dry weight were recorded at the level 100 mg/L whatever the crop plant used. Hastening germination operation of nanomaterials-gel coated seedlings compared to control plants may be ascribed to the reduction of mean germination time and coefficient variation of the germination process besides increasing the mean germination rate and the synchrony of germination traits. Overall, better performance of growing transplants has been accredited for nanoparticles-gel coated seedlings more than the control treatments which could be efficient for the safer production of transplants in an innovative way.

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Section: Resultsmentioning

confidence: 52%

Impact of synthesized metal oxide nanomaterials on seedlings production of three Solanaceae crops

Younes

Shokry

Elkady

et al. 2020

Heliyon

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“…Despite the fact that various impurities exist in the natural environment, most of the papers related to removal of contaminants from water focus only on the one-component system of phenol or copper [9][10][11][12].…”

Section: Of 27mentioning

confidence: 99%

Zeolites in Phenol Removal in the Presence of Cu(II) Ions—Comparison of Sorption Properties after Chitosan Modification

et al. 2020

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Nowadays, the contamination of water with phenol is a serious environmental problem. This compound occurs very often with heavy metal ions which makes purification of water even more difficult. This article presents the problem of the removal of phenol from aqueous solutions in the presence of Cu(II) ions on synthetic zeolite NaP1 and zeolite NaP1 modified with chitosan. The adsorbents were determined with the use of Fourier transform infrared spectroscopy (FT-IR), nitrogen adsorption/desorption isotherm, and scanning electron microscopy (SEM). The studies on isotherms and batch kinetics under diversified experimental conditions with respect to initial concentration, contact time, and pH were discussed. Both Cu(II) and phenol adsorption increases with the initial concentration. Different isotherm models correspond well with the data acquired through experiments. The kinetics of adsorption follows the pseudo-second order rate equation. The studies indicate that the obtained sorbents can be employed for efficient removal of phenol from wastewater in the presence of Cu(II) ions.

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“…After equilibrium, the transferring rate of oil to the active sides of the adsorbent material was decreased. The two phases sorption mechanisms with the first quantitatively predominated and fast and the second quantitatively insignificant and slower resulted in increasing the adsorbed oil up to the maximum value attained at the equilibrium and decreased after the equilibrium time 23,27 .…”

Section: Morphological Characterization (Sem)mentioning

confidence: 99%

“…On the contrary, it may be due to the behavior of the particle interactive, such www.nature.com/scientificreports www.nature.com/scientificreports/ as aggregation which is resulting from the high dosage of the adsorbent. This aggregation causes decreasing the total external surface area of the adsorbent material and therefore increase in the oil diffusion path length 24,27 .…”

Section: Morphological Characterization (Sem)mentioning

confidence: 99%

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Eco-friendly magnetic activated carbon nano-hybrid for facile oil spills separation

Shokry

Elkady

Salama

2020

Sci Rep

Self Cite

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This work focuses mainly on environmental concern and protection through providing beneficial use of waste biomass from water hyacinth to produce economical nano-magnetic adsorbent material-efficient for facile oil spill separation via an external magnetic field. The water hyacinth roots showed higher oil spills adsorption affinity of 2.2 g/g compared with 1.2 g/g for shoots. Nano-activated carbon was successfully extracted from the roots of water hyacinth after alkaline activation and followed by zinc chloride treatment before its carbonization. Nano-magnetite was induced into the activated carbonized nanomaterials to synthesized nano-magnetic activated carbon hybrid material (NMAC). X-ray diffraction elucidated the crystalline nature of both extracted activated carbon from water hyacinth and its magnetic hybrid material. Scanning electron microscopic micrographs implied the nano-size of both prepared activated carbon and the magnetite hybrid materials. The magnetic properties of the fabricated nano-magnetic activated carbon were evaluated using the vibrating sample magnetometer. The magnetic nano-hybrid material recorded a maximum oil adsorption affinity of 30.2 g oil/g. The optimum oil spill of 80% was established after 60 min in the presence of 1 g/L of magnetic nano-hybrid. The magnetic nano-hybrid material that absorbs oil spills was separated from the treatment media easily using an external magnetic field. Shoreline and offshore waters can be contamiend by oil drilling, accidents including oil tankers, processes, runoffs from offshore oil explorations and productions. These oil spills have a harmful impact on human health, fauna and onnatural flora. Therefore, it is an essential issue to develop new technologies for remediation the spilled oil on water 1. Physical, chemical and biological processes can be used to remove the oil or to destroy it in-situ. These methods involve oil booms, dispersants, skimmers and sorbents. Most of these techniques are costly and ineffective for sorption oil trace level 2. Among the different available methods utilized for oil decontamination from a water surface, adsorption is considered one of the most prominent techniques for oil spillage treatment in the presence of ambient conditions. The oil sorbent materials can be classified as inorganic mineral materials, organic natural sorbents and organic synthetic sorbents. The most important characteristics of oil sorbent materials are their hydrophobicity, the surface area and the sorbent materials capillarity. Despite the organic oil sorbent materials characterized by most of these properties, however, they are non-biodegradable and non-environmentally friend. So, they are substituted by natural sorbents such as rice straw, cotton, peat moss, cotton grass, kapok and water hyacinth have been examined as ecofriendly sorbents for spilled oil. Besides, these agricultural-based materials are inexpensive. Some of these agricultural products are waste materials, so, their reuse will save waste disposal fee 3. Water hyacinths (Eichho...

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Novel Magnetic Zinc Oxide Nanotubes for Phenol Adsorption: Mechanism Modeling

Cited by 33 publications

References 45 publications

Impact of synthesized metal oxide nanomaterials on seedlings production of three Solanaceae crops

Impact of synthesized metal oxide nanomaterials on seedlings production of three Solanaceae crops

Zeolites in Phenol Removal in the Presence of Cu(II) Ions—Comparison of Sorption Properties after Chitosan Modification

Eco-friendly magnetic activated carbon nano-hybrid for facile oil spills separation

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