Parametric optimization by Box–Behnken design for synthesis of magnetic chitosan-benzil/ZnO/Fe3O4 nanocomposite and textile dye removal

Reghioua, Abdallah; Barkat, Djamel; Jawad, Ali H.; Abdulhameed, Ahmed Saud; Al‐Kahtani, Abdullah A.; ALOthman, Zeid A.

doi:10.1016/j.jece.2021.105166

Cited by 179 publications

(34 citation statements)

References 63 publications

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“…Embedding ZSM-5 in a sodium alginate-based membrane allows for a significant improvement in the performance, leading to q e of 71.76 mg g −1 , but such a notable result was achieved without extending the removal ability to cationic pollutants [ 37 ]. Similarly, other polymer-based systems such as hyperbranched polyamide functionalized cellulose [ 38 ], or chitosan-benzil-ZnO-Fe 3 O 4 nanocomposite [ 18 ] have proved to possess excellent abilities in anionic dyes removal (above 800 mg g −1 for orange II and 570.8 mg g −1 for Remazol Brilliant Blue R, respectively), but the removal cationic dyes was not assessed. In our samples, such a capacity is provided by CS, making our CS–ZX composite aerogels an effective solution for wide-spectrum dye removal.…”

Section: Resultsmentioning

confidence: 99%

“…Polymer-based foams or aerogels based on cellulose [ 10 , 11 ], alginate [ 12 ], and chitosan (CS) [ 13 , 14 , 15 , 16 ] have been extensively explored for water remediation purposes. High surface area nanoparticles [ 17 , 18 ] and micro/meso-porous particles, such as zeolites and metal–organic frameworks [ 4 , 19 , 20 , 21 , 22 , 23 ] have also been widely investigated as effective adsorbents. However, their reuse is hindered by the difficult recovery from polluted solutions, that can often lead to secondary pollution.…”

Section: Introductionmentioning

confidence: 99%

“…A possible approach to overcome this limitation is combining two adsorbent materials with complementary dye removal capacity into a broad-spectrum two-phase adsorbent. Following this principle, remarkable results were obtained by dispersing carbonaceous fillers, effective in removing cationic dyes, or magnetic nanoparticles, in a CS framework, which is instead effective towards anionic pollutants [ 18 , 24 , 25 , 26 ]. In another recent study, CS was mixed with alginate, which exhibits high affinity towards cationic dyes [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

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Chitosan/Zeolite Composite Aerogels for a Fast and Effective Removal of Both Anionic and Cationic Dyes from Water

et al. 2021

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Organic dyes are extensively used in many industrial sectors, and their uncontrolled disposal into wastewaters raises serious concerns for environmental and human health. Due to the large variety of such pollutants, an effective remediation strategy should be characterized by a broad-spectrum efficacy. A promising strategy is represented by the combination of different adsorbent materials with complementary functionalities to develop composite materials that are expected to remove different contaminants. In the present work, a broad-spectrum adsorbent was developed by embedding zeolite 13X powder (ZX) in a chitosan (CS) aerogel (1:1 by weight). The CS–ZX composite adsorbent removes both anionic (indigo carmine, IC) and cationic (methylene blue, MB) dyes effectively, with a maximum uptake capacity of 221 mg/g and 108 mg/g, respectively. In addition, the adsorption kinetics are rather fast, with equilibrium conditions attained in less than 2 h. The composite exhibits good mechanical properties in both dry and wet state, which enables its handling for reusability purposes. In this regard, preliminary tests show that the full restoration of the IC removal ability over three adsorption–desorption cycles is achieved using a 0.1 M NaOH aqueous solution, while a 1 M NaCl aqueous solution allows one to preserve >60% of the MB removal ability.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Chitosan/Zeolite Composite Aerogels for a Fast and Effective Removal of Both Anionic and Cationic Dyes from Water

et al. 2021

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“…With regard to the NpZnO signals, the three adsorption characteristic bands of ZnO were detected, one of them at 432 cm -1 caused by the stretching of the Zn-O bond, and two wide signals centered at 3450 cm -1 and 1445 cm -1 corresponding to the stretching and flexion of the OH bond, respectively [39]. The OH groups are located on the surface of metal oxides as a result of the intermediate reactions involved in the synthesis process reactions [40][41][42]. The incorporation of nanoparticles to the polymer composite fibers produces very small differences in wave numbers in the FTIR spectra, however their intensities decrease slightly with respect to the pristine NpZnO from which it could be inferred that the interaction between the ZnO nanoparticles and the ABS/PAN matrix is physical, not chemical [38].…”

Section: Fourier Transformed Infrared Spectroscopy (Ftir)mentioning

confidence: 99%

Photocatalytic Reduction of Hexavalent Chromium Ions from Aqueous Solutions Using Polymeric Microfibers Surface Modified with ZnO Nanoparticles

Morales¹,

Castro‐Ruíz²,

Rodríguez-Tobías³

et al. 2021

Fibers Polym

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In this research work, the coaxial electrospinning technique was used for the development of composite membranes based on poly(acrylonitrile-butadiene-styrene)/polyacrylonitrile (ABS/PAN) micrometer fibers loaded with ZnO nanoparticles (NpZnO) in order to evaluate their efficiency in the photoreduction of Cr VI ions in aqueous solutions. The morphological analysis of the fibers was carried out by means of scanning electron microscopy (SEM), the chemical composition of the materials was determined by Fourier transformed infrared spectroscopy (FTIR) with attenuated total reflectance (ATR), the crystallinity of the nanoparticles in the fibrous materials was analyzed by X-ray diffraction (XRD) and the residual Cr VI concentration was measured with the Nesslerizations method. It was demonstrated that by means of the electrospinning technique it is possible to manufacture coaxial fibers based on ABS/PAN with homogeneous morphology with mean diameters of 1.1 µm. Furthermore, through this technique it was possible to obtain ABS/PAN-NpZnO composite coaxial fibers with concentrations of 15, 25 and 30 wt.% of NpZnO, thus favoring the increase in the dose of the photocatalyst. The maximum efficiency of said membrane was obtained with 30 % wt.% of NpZnO with respect to the total solid, allowing the reduction of Cr VI to 81.59 % after 8 h with a substrate concentration of 50 mg/l. Therefore, ABS/PAN-NpZnO fibers are promising candidates for applications related to environmental remediation, such as water regeneration filters, thus partially contributing to the development of sustainable technologies.

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“…RSM is a sequential procedure that helps to quickly and efficiently identify optimum conditions (Tiwari et al 2013;Reghioua et al 2021b). Although statistical design of experiment has been mostly used in the optimization of industrial processes with multiple parameters (Haq et al 2018), it has rarely been applied to adsorption processes Jawad et al 2020d;Reghioua et al 2021a).…”

mentioning

confidence: 99%

Removal of Disperse Orange and Disperse Blue dyes present in textile mill effluent using zeolite synthesized from cenospheres

Markandeya

Shukla²,

Srivastav

2021

Water Science and Technology

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In the present research, an efficient, eco-friendly method of utilization of coal fly ash in the form of zeolite, to treat wastewater containing dyes has been studied. Response surface methodology involving Box-Behnken design was applied for a batch process to evaluate the effect of process parameters like contact time, dye concentration, agitation speed, pH and adsorbent dosage onto zeolite. Disperse Orange 25 (DO) dye showed maximum 96% removal under optimal conditions of contact time (119 min), dye concentration (38.00 mg/L), agitation speed (158 rpm), pH (6.10) and adsorbent dosage (0.67 g/L), whereas 95.23% of Disperse Blue 79:1 (DB) dye removal was observed at adsorbent dose (1.05 g/L), dye concentration (26.72 mg/L), agitation speed (145 rpm), pH (5.68) and contact time (122 min). Study concluded that cenospheres derivatized zeolite adsorbent is efficient, eco-friendly and economical along with high potential for removal of DO and DB dyes from the aqueous solutions.

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Parametric optimization by Box–Behnken design for synthesis of magnetic chitosan-benzil/ZnO/Fe3O4 nanocomposite and textile dye removal

Cited by 179 publications

References 63 publications

Chitosan/Zeolite Composite Aerogels for a Fast and Effective Removal of Both Anionic and Cationic Dyes from Water

Chitosan/Zeolite Composite Aerogels for a Fast and Effective Removal of Both Anionic and Cationic Dyes from Water

Photocatalytic Reduction of Hexavalent Chromium Ions from Aqueous Solutions Using Polymeric Microfibers Surface Modified with ZnO Nanoparticles

Removal of Disperse Orange and Disperse Blue dyes present in textile mill effluent using zeolite synthesized from cenospheres

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