Eco-friendly synthesis of low-cost antibacterial agent (brown attapulgite-Ag nanocomposite) for environmental application

Abdulkareem, Mustafa A.; Joudi, Mayada S.; Ali, Aisha H.

doi:10.1016/j.cdc.2021.100814

Cited by 14 publications

(4 citation statements)

References 20 publications

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“…It is also noted that the bands at 1045 and 466 cm -1 increased in intensity due to silica. This increase and decrease in the intensity of the bands are due to the success of the bentonite activation process [8][9][10][11][12][13][14][15][16][17][18].…”

Section: Ftir-analysismentioning

confidence: 98%

“…Adsorption characteristics that impacted the adsorption process were studied using a UV-Vis spectrophotometer. The initial phenol concentration was changed (50, 100,125, 150 mg L-1), pH (3,6,9,12), and temperature range (25,35,45, and 55°C ) To study the effect of variables on adsorption. The Minitab software's design of the experiments option's upper and lower range was used to calculate the total number of experiments.…”

Section: Adsorption Batch Experimentsmentioning

confidence: 99%

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Statistical Analysis of Phenol Removal Using Modified Iraqi Bentonite from Wastewater by Adsorption Process

Raheem,

Majeed

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Bentonite from Iraq was the clay of choice for this study (Calcium base). The “State Company of Geological Survey and Mining” provided this rock, which was altered using Activation by Heat and Acid. Heat activation involved calcination at 400 Celsius, whereas chemical Activation involved H2SO4. Analysis utilizing XRD, BET, and FTIR on bentonite before and after Activation. Adsorption kinetics and isotherm were analyzed to assess whether modified bentonite could act as an adsorbent to eliminate phenol from water. The study found that after being activated, bentonite’s surface area increased from 63.32 to 78.65 m2/g. The extraction of phenol from synthetic wastewater using activated bentonite was tested in a batch experiment. The effects of pH, concentration, and temperature on removal have been studied. According to the findings, pH of 3 is optimal for phenol removal, with an optimal elimination rate of 88% at 50 ppm, 55 0C temperature, and 1 gram of bentonite. The isotherm study indicates the Freundlich model has the most accurate model, with an accuracy of 97%. The experimental RSM was used to develop a statistical model with a remarkable 90% accuracy.

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Section: Ftir-analysismentioning

confidence: 98%

Section: Adsorption Batch Experimentsmentioning

confidence: 99%

Statistical Analysis of Phenol Removal Using Modified Iraqi Bentonite from Wastewater by Adsorption Process

Raheem,

Majeed

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…A quantity of 100 grams of attapulgite ore is taken and grounded using an electric agate mill for half an hour. After the process of grinding the attapulgite and obtaining a powder, the attapulgite powder is sifted by a sieve with a mesh size of 75 μm, and then the ground powder is collected and dried in the oven at 70 ºC for 24hrs [10].…”

Section: Preparation Of Nanoparticles a Purification And Sieving Of A...mentioning

confidence: 99%

Evaluation and Treatment of Cadmium Present in the Industrial Wastewater of the North Refineries Company by Using Attapulgite-NiCoFe2O4

Saleh

2023

J. Res. Appl. Sci. Biotechnol.

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In this study, a nanomaterial is synthesized from attapulgite clay to act as a new adsorption material. The synthesis of (Attapulgite-NiCoFe2O4) is demonstrated within nanoscale measurements using X-ray Diffraction (XRD) measurements, Scanning Electron Microscopy (SEM), Vibrating Sample Magnetometry (VSM) Analysis, and Transmission Electron Microscopy (TEM). Batch operations are carried out to study the effect of acidity, contact time, adsorbent dose, and ion concentration. The prepared material (altapnlgite-NiCoFe2O4) has achieved high efficiency in removing cadmium metal at the optimum pH (7), at its optimal dose (250 mg/L) and the concentration of the adsorbent (the prepared ion solution) (0.023 mg/L) with the contact time (30 min). The removal rate of cadmium is 92% under the influence of these conditions.

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“…The distinctive spherical crystal structure of silver at 2θ was shown by four intense peaks at 38.2, 46.1, 64.1, and 77.3. These peaks indicate that a spherical nanosilver was synthesized(Elbahnasawy et al, 2021;Abdulkareem et al, 2022).…”

mentioning

confidence: 96%

Antimicrobial, Antibiofilm and Antiurease Activities of Microbially Synthesized Silver Nanoparticles against Proteus mirabilis

Gürkök

Özdal

2023

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Nanoparticles (NPs) are tiny materials ranging in size from 1 to 100 nm and have unique magnetic, electrical, optical characteristics differing from the bulk materials. They have broad spectrum of applications in pharmaceuticals, electronics, optics, aviation, construction, and automotive industries. Several physical and chemical techniques such as electrochemical, thermal decomposition, chemical vapor deposition, sonochemical reduction and microwave irradiation have been applied to produce metal NPs. Alternatively, green synthesis offers an environmentally-friendly and simple mean for NP preparation. In the present study, silver NPs were produced by Pseudomonas aeruginosa OG1 strain. Characterization of NPs were performed by TEM, SEM and XRD. These NPs were used against pathogenic Proteus mirabilis, which occurs widely in soil and water and shows high level urease activity and forms clear biofilms. It is the cause of 90% of all Proteus infections and frequently related with the catheter-associated urinary tract infections. Silver NPs obtained in the present study were applied to inhibit the growth, urease production, and biofilm formation of P. mirabilis. Growth inhibition zones of 9 mm and 11 mm and, 60 % and 85% antibiofilm effects were obtained by 100 µg/mL and 200 µg/mL NPs, respectively. Urease activity of P. mirabilis was completely inhibited in both concentrations. These results show that the Ag NPs can be used as effective antimicrobial, antibiofilm, and antiurease agents in the fight against pathogens.

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Eco-friendly synthesis of low-cost antibacterial agent (brown attapulgite-Ag nanocomposite) for environmental application

Cited by 14 publications

References 20 publications

Statistical Analysis of Phenol Removal Using Modified Iraqi Bentonite from Wastewater by Adsorption Process

Statistical Analysis of Phenol Removal Using Modified Iraqi Bentonite from Wastewater by Adsorption Process

Evaluation and Treatment of Cadmium Present in the Industrial Wastewater of the North Refineries Company by Using Attapulgite-NiCoFe2O4

Antimicrobial, Antibiofilm and Antiurease Activities of Microbially Synthesized Silver Nanoparticles against Proteus mirabilis

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