Comparative Study of Dye Adsorption on Silica Nanoparticles: Effects of Surface Functionalization and Other Operational Parameters

Chaudhary, Savita; Sood, Aastha; Mehta, S.K.

doi:10.1166/jnn.2016.11128

Cited by 5 publications

(1 citation statement)

References 14 publications

(15 reference statements)

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“…However, it is estimated that over 84k tons are discharged into the water each year [ 132 ], emphasizing the critical need for their removal. In the past, the removal of dyes has been achieved through the utilization of complexation reactions that can take place between suitably modified silanols surface and various dyes [ 133 ]. These mechanisms involve interactions such as hydrogen bonds, electrostatic and hydrophobic interactions, charge transfer interactions, or π-π interactions [ 133 ].…”

Section: Adsorption Applicationsmentioning

confidence: 99%

Hybrid Polymer-Silica Nanostructured Materials for Environmental Remediation

Grisolia,

Dell’Olio,

Spadafora

et al. 2023

Molecules

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Due to the ever-growing global population, it is necessary to develop highly effective processes that minimize the impact of human activities and consumption on the environment. The levels of organic and inorganic contaminants have rapidly increased in recent years, posing a threat to ecosystems. Removing these toxic pollutants from the environment is a challenging task that requires physical, chemical, and biological methods. An effective solution involves the use of novel engineered materials, such as silica-based nanostructured materials, which exhibit a high removal capacity for various pollutants. The starting materials are also thermally and mechanically stable, allowing for easy design and development at the nanoscale through versatile functionalization procedures, enabling their effective use in pollutant capture. However, improvements concerning mechanical properties or applicability for repeated cycles may be required to refine their structural features. This review focuses on hybrid/composite polymer-silica nanostructured materials. The state of the art in nanomaterial synthesis, different techniques of functionalization, and polymer grafting are described. Furthermore, it explores the application of polymer-modified nanostructured materials for the capture of heavy metals, dyes, hydrocarbons and petroleum derivatives, drugs, and other organic compounds. The paper concludes by offering recommendations for future research aimed at advancing the application of polymer-silica nanostructured materials in the efficiency of pollutant uptake.

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Section: Adsorption Applicationsmentioning

confidence: 99%

Hybrid Polymer-Silica Nanostructured Materials for Environmental Remediation

Grisolia,

Dell’Olio,

Spadafora

et al. 2023

Molecules

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Recent Progress in Nanomaterials for Adsorptive Removal of Organic Contaminants from Wastewater

2020

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Water being most vital component of life is getting contaminated due to inhuman disposal of toxicants in water bodies. Organic compounds such as dyes, pharmaceuticals/drugs, pesticides etc. are used for various purposes and become life threatening when dumped in water bodies without pre‐treatment. Removal of these toxicants from environment is complicated but highly essential for sustainable development. Various methods have been used for this purpose among which adsorption is the most simple, fast, effective and inexpensive method for the removal of such contaminants. Nanomaterial proved to be one of the best adsorbent due to its unique structural properties which provides large surface area and high adsorption capacity. The factors affecting adsorption along with adsorption mechanism is discussed in detail. Detection of the pollutants is also quite tedious work as pollutants are present in trace quantity. UV‐Visible spectrophotometry is widely used detection technique which is easy to operate, produce accurate results and cheap. The review emphasizes the use of nanomaterial as adsorbents for the removal of various organic pollutants from wastewater using UV‐Visible spectrophotometry.

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