Tuning of nanoporous silica by electrospinning and sol-gel methods for efficient beryllium uptake

Elsherief, Mohamed A.; Morsi, Rania E.; Shabaan, M.; Salem, Hend; Dayeem, Samia Abdel; Elsabeé, Maher Z.

doi:10.1080/01496395.2018.1563159

Cited by 7 publications

(1 citation statement)

References 32 publications

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“…Additionally, the possibility to prepare a lot of material via electrospinning in short times is available. [55,57] The electrospinning procedure is very often based on solgel processes [55,[58][59][60][61][62] or polymerization, [63][64][65] while electrospinning of particle dispersion is possible but only rarely used. [64,66] To the best of our knowledge, here for the first time the electrospinning procedure was used to prepare mesoporous nanofibers which only consist of pre-synthesized, isolated and purified MCM-41 nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Assembly of Tailored Porous Nanofibers from Mesoporous MCM‐41 Nanoparticles via Electrospinning

2023

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For the first time the assembly of isolated and purified MCM‐41 nanoparticles into nanofibers was realized by electrospinning. Electrospinning was conducted with a dispersion of these nanoparticles and polyvinylpyrrolidone in ethanol. The nanofibers were characterized by electron microscopy, X‐ray diffraction, elemental analysis, gas physisorption and infrared spectroscopy in diffuse reflectance. The variation of the spinning parameters was investigated in detail towards the influence on the nanofiber diameter. The change of the applied voltage and the flow rate show strong impacts on the nanofiber diameter. Therefore, the nanofiber diameter can be tailored by choosing suitable electrospinning parameters. The fiber mats with thin nanofibers were then additionally functionalized with sulfonic acid groups in a proof of principal study. The nanofiber morphology was maintained both after functionalization with thiol group and subsequent oxidation to sulfonic acid groups.

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Section: Introductionmentioning

confidence: 99%

Assembly of Tailored Porous Nanofibers from Mesoporous MCM‐41 Nanoparticles via Electrospinning

2023

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Advancements in Understanding Beryllium Contamination: Novel Insights Into Environmental Risk Assessment

Kumar,

Chawla

et al. 2024

Land Degrad Dev

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Beryllium (Be), a lightweight metal with significant industrial applications, poses notable environmental and health risks due to its toxicity and persistence, and widespread use, particularly in the mechanical, aerospace, and electronics sectors. It is commonly alloyed with other heavy metals to enhance material properties. The primary environmental pathways for Be release include emissions from coal and fossil fuels combustion, as well as the incineration of solid wastes. Once introduced into the natural environment, primarily Be associated with soil particles and sediments, particularly in terrestrial and aquatic ecosystems. This review examined the pathways through which Be enters the environment, including atmospheric deposition, industrial discharge, and leaching from natural geologic deposits. The paper highlights the bioavailability and mobility of Be in soil and water systems, emphasizing the geochemical and physical factors influencing its persistence and potential for bioaccumulation. Risk appraisal methodologies are evaluated, with a focus on human exposure routes, including inhalation of airborne particulates and ingestion of contaminated water and food. The toxicological impacts on human health are critically analyzed, detailing both acute and chronic effects, such as respiratory diseases and carcinogenicity. This review evaluates existing regulatory frameworks and remediation strategies, assessing their efficacy in mitigating environmental contamination and exposure to Be. By integrating interdisciplinary research, this paper provides an in‐depth understanding of the environmental behavior and toxicology of beryllium, offering insights that can inform robust policy frameworks and shape future research directions.

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Nanoporous Silica Materials for Electrochemical Sensing and Bioimaging

Subramaniyam,

Pichumani

2023

Handbook of Nanobioelectrochemistry

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Tuning of nanoporous silica by electrospinning and sol-gel methods for efficient beryllium uptake

Cited by 7 publications

References 32 publications

Assembly of Tailored Porous Nanofibers from Mesoporous MCM‐41 Nanoparticles via Electrospinning

Assembly of Tailored Porous Nanofibers from Mesoporous MCM‐41 Nanoparticles via Electrospinning

Advancements in Understanding Beryllium Contamination: Novel Insights Into Environmental Risk Assessment

Nanoporous Silica Materials for Electrochemical Sensing and Bioimaging

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