Fabrication of novel magnetic zinc oxide cellulose acetate hybrid nano-fiber to be utilized for phenol decontamination

Hassan, Hazem; Elkady, M. F.; Farghali, Ahmed A.; Salem, Alaa Mohamed; El-Hamid, A.I. Abd

doi:10.1016/j.jtice.2017.06.021

Cited by 41 publications

(23 citation statements)

References 24 publications

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“…Although there are many papers reporting on ZnO-based DMS nanomaterials and their related applications, the main goals of this work differ. The basic idea of this research is to add magnetism to ZnO nanostructure material, keeping as many intrinsic properties of ZnO as possible [ 30 ]. This idea is implemented through the functionalization of the ZnO surface, by coupling it with iron oxide (magnetite) NPs.…”

Section: Introductionmentioning

confidence: 99%

Novel Magnetic Zinc Oxide Nanotubes for Phenol Adsorption: Mechanism Modeling

et al. 2017

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Considering the great impact of a material’s surface area on adsorption processes, hollow nanotube magnetic zinc oxide with a favorable surface area of 78.39 m2/g was fabricated with the assistance of microwave technology in the presence of poly vinyl alcohol (PVA) as a stabilizing agent followed by sonic precipitation of magnetite nano-particles. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) micrographs identified the nanotubes’ morphology in the synthesized material with an average aspect ratio of 3. X-ray diffraction (XRD) analysis verified the combination of magnetite material with the hexagonal wurtzite structure of ZnO in the prepared material. The immobilization of magnetite nanoparticles on to ZnO was confirmed using vibrating sample magnetometry (VSM). The sorption affinity of the synthesized magnetic ZnO nanotube for phenolic compounds from aqueous solutions was examined as a function of various processing factors. The degree of acidity of the phenolic solution has great influence on the phenol sorption process on to magnetic ZnO. The calculated value of ΔH0 designated the endothermic nature of the phenol uptake process on to the magnetic ZnO nanotubes. Mathematical modeling indicated a combination of physical and chemical adsorption mechanisms of phenolic compounds on to the fabricated magnetic ZnO nanotubes. The kinetic process correlated better with the second-order rate model compared to the first-order rate model. This result indicates the predominance of the chemical adsorption process of phenol on to magnetic ZnO nanotubes.

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Section: Introductionmentioning

confidence: 99%

Novel Magnetic Zinc Oxide Nanotubes for Phenol Adsorption: Mechanism Modeling

et al. 2017

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“…3. The broad band obtained at 3480 and 3475 cm −1 for CC 0 and CC 6 is hydroxyl group stretching [17,28,29]. Bend at wavenumber of 2944.7 cm −1 for CC 0 spectrum is attributed to stretching of -CH-of methyl groups (-CH 3 ), which was shifted to 2948.8 cm −1 for CC 6 membrane [30].…”

Section: Results and Discussion 31 Contact Angle Sem And Ftir Analysismentioning

confidence: 96%

“…Fabrication cost of substrate can be substantially reduced by using locally available alternative raw materials [14][15][16]. Mukherjee and De [13] and Hassan et al [17] have reported merely 51 % and 64 % of phenol removal using CA-alumina nanoparticle mixed matrix membrane and CA hybrid nanofiber membrane, respectively. Phenol removal efficiency and other properties of CA membrane can be improved by using suitable additives [12].…”

Section: Introductionmentioning

confidence: 99%

Phenol Removal by Novel Choline Chloride Blended Cellulose Acetate-Fly Ash Composite Membrane

Gupta

Chathurappan

Anandkumar

2019

Period. Polytech. Chem. Eng.

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A novel composite membrane (CM) was prepared by coating choline chloride (ChCl) blended cellulose acetate (CA) on fly-ash based ceramic substrate for phenol removal. Different amount (0-1 g) of ChCl was blended with CA to synthesize various CMs. Amount of ChCl in CA increases the contact angle, average pore radius, permeability of CM from 55.15° to 71.55°, 1.6 to 6.83 nm and 0.0057 to 0.0152 L·m−2·h−1·kPa−1, respectively. Phenol rejection increased from 56 to 93 % while increasing ChCl amount in CA. Phenol removal decreased from 94.26-64.23 % and 91.09-78.62 % with increase in applied pressure (69-483 kPa) and feed concentration (50-200 mg·L−1). However, removal rate increased from 80.46-92.47 % with increase in pH 2-12. Among all CMs, CC5 is identified as best CM with maximum phenol removal efficiency (92.7 %) and flux (1.86 L·m−2·h−1) at 207 kPa applied pressure and 100 mg·L−1 of feed phenol concentration. The obtained results reveal that blending of 0.9 % ChCl with CA can significantly enhances the phenol removal efficiency and this could be used as potential CM for treatment of phenol bearing wastewater.

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“…The slight increase in the intensities of these peaks can attributed to addition of zinc compound and heat treatment enhanced the crystallinity of PVC nanofiber. Since corresponding ZnO peaks are not presented at the XRD patterns [18,19], it is very difficult to mention that zinc nitrate was transformed to well crystallize zinc oxide structure in this study. In the literature, it was reported that when ZnO was added to PVC, UV absorption increased and transmittance was decreased [7,8].…”

Section: Sayfa 121mentioning

confidence: 91%

“…After NaOH and heat treatment these peak intensities decreased ( Figure 5B, 5C) since some NO 3 has been removed as a result of NaOH treatment and a following rinsing. Characteristic bands between 400-500 cm -1 correspond to Zn-O stretching ( Figure 5C), and the intensities increased by increasing Zn(NO 3 ) 2 ratio in PVC/ Zn(NO 3 ) 2 nanofibers [19,20].…”

Section: Sayfa 121mentioning

confidence: 99%