Cost estimation of synthesis and utilization of nano-adsorbents on the laboratory and industrial scales: A detailed review

GadelHak, Yasser; El-Azazy, Marwa; Shibl, Mohamed F.; Mahmoud, Rehab

doi:10.1016/j.scitotenv.2023.162629

Cited by 38 publications

(3 citation statements)

References 128 publications

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“…This LDH is among the highest adsorbents that were reported for MOX adsorption in terms of adsorption capacity while being a simple and cheap adsorbent to prepare compared to carbon and metal–organic frameworks based adsorbents that are more expensive to prepare. LDH can cost 1–25 USD/kg while carbon based adsorbents and MOF can cost 0.5–132 USD/kg and 500–7300 USD/kg, respectively 86 . In addition, the prepared LDH has shown a relatively fast equilibrium time (60 min) compared to other adsorbents reported in the literature.…”

Section: Resultsmentioning

confidence: 99%

Investigation of ternary Zn–Co–Fe layered double hydroxide as a multifunctional 2D layered adsorbent for moxifloxacin and antifungal disinfection

Mahmoud,

Kotb,

GadelHak

et al. 2024

Sci Rep

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Layered double hydroxides have recently gained wide interest as promising multifunctional nanomaterials. In this work, a multifunctional ternary Zn–Co–Fe LDH was prepared and characterized using XRD, FTIR, BET, TEM, SEM, and EDX. This LDH showed a typical XRD pattern with a crystallite size of 3.52 nm and a BET surface area of 155.9 m2/g. This LDH was investigated, for the first time, as an adsorbent for moxifloxacin, a common fluoroquinolones antibiotic, showing a maximum removal efficiency and equilibrium time of 217.81 mg/g and 60 min, respectively. Its antifungal activity, for the first time, was investigated against Penicillium notatum, Aspergillus flavus, Aspergillus fumigatus, Aspergillus niger, and Mucor fungi at various concentrations (1000–1.95 µg/mL). This LDH was found to be effective against a variety of fungal strains, particularly Penicillium and Mucor species and showed zones of inhibition of 19.3 and 21.6 mm for Penicillium and Mucor, respectively, with an inhibition of 85% for Penicillium species and 68.3% for Mucormycosis. The highest antifungal efficacy results were obtained at very low MIC concentrations (33.3 and 62 µg/ml) against Penicillium and Mucor, respectively. The results of this study suggest a promising multifunctional potential of this LDH for water and wastewater treatment and disinfection applications.

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Section: Resultsmentioning

confidence: 99%

Investigation of ternary Zn–Co–Fe layered double hydroxide as a multifunctional 2D layered adsorbent for moxifloxacin and antifungal disinfection

Mahmoud,

Kotb,

GadelHak

et al. 2024

Sci Rep

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“…Moreover, the OECD (1999) estimated annual maintenance expenses for science lab equipment ranging from $5,000 for centrifuges to over $100,000 for electron microscopes. Furthermore, expenditures on lab consumables such as reactants can surpass $20,000 per year, varying depending on lab size and reactant prices, with instances of a 5 mg bottle of reactant priced at $300 per milligram (GadelHak et al, 2023). In contrast, in VL environments, simulated equipment does not degrade, and chemical reactants remain constant, eliminating the expenses associated with conducting experiments in physical labs.…”

Section: Vls In Developing Countriesmentioning

confidence: 99%

Exploring the Integration of Virtual Laboratories in Science Education

Shambare,

Simuja

2024

International Journal of Virtual and Personal Learning Environments

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The advantage of VLs lies in their capacity for simulating real-world lab experiences within a fully immersive digital environment, yet the uptake in rural schools in developing countries remains low. To understand this paradox, this study explores the perceptions of seven secondary school science teachers in a rural district in South Africa. Through a qualitative case-study methodology guided by the interpretive paradigm, this research adopts a phenomenological approach to gain insights into teachers' attitudes, understandings, and the factors influencing their acceptance or rejection of this technology. The Unified Theory of Acceptance and Use of Technology is employed as a theoretical framework. The study finds that despite potential educational benefits, the actual use of VLs is largely influenced by teacher perceptions and experiences, rooted in context-specific challenges. The findings reveal that teachers perceive VL as a beneficial and practical tool providing access to high-quality lab equipment necessary for student experiments, which could otherwise be cost-prohibitive.

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“…Socioeconomic development has been positively impacted by industrial operations, such as the manufacture of paint, textiles, printing, petrochemicals, and cosmetics. However, a significant portion of the contamination of water bodies is caused by the discharge of wastewater enriched with organic compounds from various industrial activities. − Due to their hazardous properties and high volume, the wastewater generated during the textile production process has resulted in significant contamination . Dyes are highly toxic and colored and are the principal pollutant in the effluent from the textile industry .…”

Section: Introductionmentioning

confidence: 99%

Metal Oxide-Impregnated Biochar for Azo Dye Remediation as Revealed through Kinetics, Thermodynamics, and Response Surface Methodology

Aslam,

Batool,

Noreen

et al. 2024

ACS Omega

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This study reports for the first time the adsorption capacity of a novel adsorbent Croton bonplandianus Baill. biochar. Its adsorption capacity was further enhanced by loading magnetic composites on it, which makes it an efficient medium for the adsorption of dyes. Two azo dyes, Basic Brown 1 (BB 1 ) and Basic Orange 2 (BO 2 ), were studied for their effective adsorption from aqueous media. A comprehensive characterization was performed by using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) to study the properties of Fe 2 O 3 -loaded C. bonplandianus Baill. biochar (FO-CBPBB). A series of batch experiments were conducted to optimize various parameters (pH, contact time, adsorbent amount, initial BB 1 and BO 2 concentrations, and temperature) for the maximum adsorption of BB 1 and BO 2 on the FO-CBPBB adsorbent. The percentage of BB 1 and BO 2 dyes that adsorb to FO-CBPBB under the best experimental circumstances (pH of solution 7, contact time 80 min, temperature of solution 40 °C, initial BB 1 and BO 2 dye concentrations 80 mg L −1 , and adsorbent dose 1 g L −1 ) was 93 and 95%, respectively. The best adsorption of BB 1 and BO 2 was accomplished by optimizing the effects of several factors, including the starting dye concentration, contact time, and temperature, based on the central composite design. The Freundlich and Langmuir isotherm models were used to examine the equilibrium data. The Langmuir isotherm with the greatest adsorption capacity and R 2 value effectively captured the experimental results. When kinetic parameters were investigated, it was found that pseudo-second-order was appropriate, reflecting the fact that the dye−adsorbent interaction was the rate-controlling factor in this study. The sorption process was endothermic and spontaneous, as shown by the thermodynamic variables. Based on the interaction between the adsorbent and azo dyes, it was concluded that the adsorption process was electrostatic in nature. Adsorbents that have been synthesized can effectively remove azo dyes from wastewater. Excellent regeneration efficiency was exhibited by FO-CBPBB, which makes it an ecofriendly and cost-effective alternative to other costly techniques applied for water purification.

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Cost estimation of synthesis and utilization of nano-adsorbents on the laboratory and industrial scales: A detailed review

Cited by 38 publications

References 128 publications

Investigation of ternary Zn–Co–Fe layered double hydroxide as a multifunctional 2D layered adsorbent for moxifloxacin and antifungal disinfection

Investigation of ternary Zn–Co–Fe layered double hydroxide as a multifunctional 2D layered adsorbent for moxifloxacin and antifungal disinfection

Exploring the Integration of Virtual Laboratories in Science Education

Metal Oxide-Impregnated Biochar for Azo Dye Remediation as Revealed through Kinetics, Thermodynamics, and Response Surface Methodology

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