High-performance mixed-matrix membranes enabled by organically/inorganic modified montmorillonite for the treatment of hazardous textile wastewater

Abdel‐Karim, Ahmed; El‐Naggar, Mehrez E.; Radwan, Emad K.; Mohamed, Ibrahim M.A.; Azaam, Mohamed M.; Kenawy, El‐Refaie

doi:10.1016/j.cej.2020.126964

Cited by 106 publications

(36 citation statements)

References 73 publications

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“…The difference of these spectra is noticed on the increase in the intensity of the vibration band at 3394 cm -1 due to the adsorbed water. Moreover the intensities of the vibration bands of the -OH groups at 3527 and 3617 cm -1 have also significantly increased [183,184]. On the GM spectrum, the bands at 1618 and 1551 cm -1 were observed and were assigned to the stretching of amide Ι, and C=O, at ring A and ring C [185,186], respectively.…”

Section: Xrd Methodsmentioning

confidence: 95%

Tetracycline Removal from Water by Adsorption on Geomaterial, Activated Carbon and Clay Adsorbents

Hamoudi

Hamdi

Brendlé

2021

Ecological Chemistry and Engineering S

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The use of antibiotics for breeding and for humans increased considerably in recent years, as a dietary supplement to enhance animal growth. This frequent use leads to the detection of residues in water and wastewater. Thus, the emergence of new strains of bacteria resistant to these antibiotics and, can lead to incurable diseases of livestock, and can lead to a possible transmission of these strains to humans. The purpose of this work is to develop new materials based on treated Maghnia clay, activated carbon, cement, and PVA polymer, named geomaterials. These materials were intended for the containment of hazardous wastes in landfills. The removal of tetracycline from aqueous solution was tested by adsorption onto synthesised geomaterials and their mineral constituents. Adsorption kinetics revealed that tetracycline was rapidly retained by GM and ATMa. This was confirmed by the relatively short equilibrium time of 30 min. The pseudo-second-order and intraparticle models well fitted the adsorption kinetic of the TC-adsorbent studied systems. It was noticed that the adsorption kinetic passes through several mechanisms, was demonstrated by the multi-linearity on the plot of qt against the square root of t. The adsorption capacity (Qa ) of TC onto GM is pH-dependent. Indeed, Qa reaches a maximum value (Qa = 12.58 mg ∙ g–1 at a very acidic pH of 2, then the adsorbed amount decreases to reach a minimum value at pH of 8, and for basic pHsQa increases up to 10 mg ∙ g–1.

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Section: Xrd Methodsmentioning

confidence: 95%

Tetracycline Removal from Water by Adsorption on Geomaterial, Activated Carbon and Clay Adsorbents

Hamoudi

Hamdi

Brendlé

2021

Ecological Chemistry and Engineering S

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“…Cellulose acetate (CA) has been an important engineering biopolymer for the assembly of different nanocomposite films. [ 43,44 ] It has been one of the earliest known cellulose derivatives utilized in many applications such as packaging films, gas separation, and water purification membranes. [ 45–48 ] It is characterized by a simple structure and excellent characteristics such as availability from diversity of resources, biodegradability, advantageous physical performance, simple processing, high transparency, and distinctive mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Facile development of photochromic cellulose acetate transparent nanocomposite film immobilized with lanthanide‐doped pigment: ultraviolet blocking, superhydrophobic, and antimicrobial activity

et al. 2020

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Smart photochromic and fluorescent products can respond to an external stimulus by changing their colour and emission spectra with light. Here, we developed a simple formulation of an organic–inorganic nanocomposite photoluminescent cellulose acetate (CA) film based on immobilization of a lanthanide‐doped pigment. Strontium aluminium oxide pigment doped with Eu2+ and Dy3+ (SAOED) exhibits an optimal excitation wavelength at 365 nm. For better fabrication of the multifunctional colourless pigment–cellulose acetate composites (CA–SAOED), the lanthanide‐doped colourant must be well‐dispersed physically without agglomeration. The fabricated photoluminescence cellulose film exhibited an excitation peak at 436 nm and two fluorescence peaks at 494 and 524 nm. The findings revealed that the originated nanocomposite films demonstrated improved superhydrophobic activity, high ultraviolet light protection and enhanced antibacterial activity without adversely influencing its native physico‐mechanical characteristics. The films demonstrated fast and reversible photochromic responsiveness without fatigue during ultraviolet light irradiation.

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“…Compared to ZC the morphology (Fig. 2D) of ZAC was no different after modi cation with Ag, suggesting that the introduced Ag will not damage and affect the ower-like structure stability (Abdel-Karim et al, 2021). In Fig.…”

Section: Structure and Morphologymentioning

confidence: 90%

“…These results suggest that the presence of Ag may have strong hydration capability, which was attributed to the hydroxyl groups possibly created large hydrophilic repulsion force as a barrier between the contaminants and ZAC, contributing to detachment of the pollutants, revealing that the introduction of Ag improve the anti-fouling performance of the material. On the other hand, the BSA zeta potential is -3.88 mV (Abdel-Karim et al, 2021), the zeta potential of ZAC is also negative, which will increase the surface of repulsion between the contaminants and ZAC surface, and obstruct the contaminants adsorbed on the ZAC surface. Therefore, the antifouling results demonstrate clearly that the ZAC exhibits remarkable removal e ciency for tellurium and can be used in practical applications.…”

Section: Antifouling Propertymentioning

confidence: 99%

Hierarchical flower-like ZnO–Ag@Cellulose composite with antifouling and antibacterial properties for efficient recovery of tellurium (IV) from wastewater

et al. 2021

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Recovery of the tellurium from wastewater is signi cance for both industrial applications and sustainable development due to the adverse impacts emanating from environmental pollution and strategic values in the photovoltaic industry. Herein, this study presents the recovery of tellurium from wastewater by owerlike structure ZnO-Ag@cellulose (ZAC) composites. For adsorbent preparation, lignocellulose was rst extracted from waste wood debris by an alkaline extraction process. Then, the ower-like structure of ZAC composites were synthesized by a facile one-step hydrothermal method. The obtained materials are conducted under different parameters to investigate tellurium adsorption properties. The results indicate that the tellurium adsorption process is an exothermic reaction and ts well to the Freundlich model. Kinetic data are well described by pseudo-second-order model, indicating ZAC adsorption of tellurium is a chemical process. Besides, as-prepared ZAC exhibited excellent performance for tellurium elimination from wastewater with a maximum removal e ciency of 98.86%. The ZAC also shows outstanding antifouling performance in polluted environment and can still achieve the rate of 94.23% for tellurium. Moreover, the ZAC composite reveals high reusability and stability after six desorption-regeneration cycles. Importantly, the ZAC composite exhibits disinfection performance against E. coli and S. aureus with high killing e ciency. Therefore, this work not only demonstrates ZAC composite is e cient adsorbent with antifouling and antibacterial capability for tellurium recovery, but also provides an effective channel for promising candidates to decontaminate similar pollutants and practical applications of wastewater. Highlights 1. The ZAC composites were fabricated via a facile one-step hydrothermal method.2. The raw materials are extracted from waste wood debris using alkaline extraction process to extract lignocellulose.3. The prepared composite material has high antifouling and antibacterial ability for the adsorption of tellurium (IV). 4. The resulting composite material exhibits excellent performance, with a maximum removal rate of tellurium (IV) was 98.86%.5. The prepared adsorbent has excellent stability and reusable ability to remove tellurium in wastewater.

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High-performance mixed-matrix membranes enabled by organically/inorganic modified montmorillonite for the treatment of hazardous textile wastewater

Cited by 106 publications

References 73 publications

Tetracycline Removal from Water by Adsorption on Geomaterial, Activated Carbon and Clay Adsorbents

Tetracycline Removal from Water by Adsorption on Geomaterial, Activated Carbon and Clay Adsorbents

Facile development of photochromic cellulose acetate transparent nanocomposite film immobilized with lanthanide‐doped pigment: ultraviolet blocking, superhydrophobic, and antimicrobial activity

Hierarchical flower-like ZnO–Ag@Cellulose composite with antifouling and antibacterial properties for efficient recovery of tellurium (IV) from wastewater

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