Mesoporous organosilica adsorbents: nanoengineered materials for removal of organic and inorganic pollutants

Walcarius, Alain; Mercier, Louis

doi:10.1039/b924316j

Cited by 541 publications

(320 citation statements)

References 375 publications

(435 reference statements)

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“…MPSs are easily protonated in water, which results in their having a charged surface that interacts with other ions in solution. Therefore, MPS could be used as efficient adsorbents for the removal of dye (Walcarius and Mercier 2010). …”

Section: Dye Adsorption By Mesoporous Silicasmentioning

confidence: 99%

Review of the use of mesoporous silicas for removing dye from textile wastewater

Salahshoor

Shahbazi

2014

European Journal of Environmental Sciences

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The textile industry is a major user of dyes and hence an important source of water pollution, which poses a threat to aquatic as well as human life. Adsorption is a widely used technique for separating and removing dye from wastewater. Recently the use of mesoporous silica (MPSs) as an adsorbent in wastewater treatment has received considerable attention. MPSs are emerging as potential adsorbents because of their surface area, tunable and uniform pore structure, high pore volume, ordered pore structure, thermal and mechanical stability, and extraordinarily wide possibilities for functionalization to increase their adsorption capacity. In this paper the ability of MPSs to absorb dyes from aqueous solutions is reviewed. This article provides information on adsorption studies carried out under different operational conditions such as contact time, solution pH, temperature, agitation speed, etc. This review also summarizes and attempts to compare the equilibrium isotherm and kinetic models, and the thermodynamic studies that report the adsorption of dyes onto MPSs. The literature reviewed, indicate that SBA-MPSs have a higher adsorption capacity than MCM-MPSs and functionalized MPSs a better adsorption capacity than MPSs. It is evident from the literature that the potential of MPS based nano-sorbents being used for removing dyes from aqueous solution is very high. However, still more research work is needed on developing cost effective and more efficient MPS based nano-sorbents for use commercially.

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Section: Dye Adsorption By Mesoporous Silicasmentioning

confidence: 99%

Review of the use of mesoporous silicas for removing dye from textile wastewater

Salahshoor

Shahbazi

2014

European Journal of Environmental Sciences

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“…19 The chemical amount of the octadecylsilyl group was calculated to be 0.66 mol kg -1 from the result of elemental analysis (C: 14.3 wt%).…”

Section: Methodsmentioning

confidence: 99%

Enhanced Retention of Chelating Reagents in Octadecylsilyl Silica Phase by Interaction with Residual Silanol Groups in Solid Phase Extraction of Divalent Metal Ions

et al. 2016

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Solid-phase extraction (SPE) of divalent metal ions with a lipophilic and potentially divalent hexadentate chelating reagent (H2L), with which octadecylsilyl silica (ODS) was impregnated, was studied to gain more insight into and develop the potential of this methodology. This is the first time to demonstrate that this reagent as well as other common nitrogencontaining reagents were retained both by adsorption due to hydrogen bonding between nitrogen atoms of the reagent and residual silanol groups in the ODS phase and by simple distribution into the hydrophobic space. An appreciably large amount of this reagent could be retained by the adsorption mechanism even with a relatively thin loading solution. ) with anion in SPE with H2L. The extractability and selectivity were substantially the same as that in liquid-liquid extraction.

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“…216 From the viewpoint of environmental remediation applications, organically modified mesoporous silica materials have been utilized for the removal of toxic metal ions from aqueous solutions. 217 Mercaptopropyl-functionalized mesoporous silica 218,219 has a strong ability to absorb mercury ions due to their effective interactions with thiol sites. Amine-functionalized MCM-41 has been exploited for the selective extraction of precious metals.…”

Section: Novelties In Surfactant-templated Mesoporous Materialsmentioning

confidence: 99%

Templated Synthesis for Nanoarchitectured Porous Materials

Malgras

Kamachi

et al. 2015

Bulletin of the Chemical Society of Japan

524

233

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Mesoporous organosilica adsorbents: nanoengineered materials for removal of organic and inorganic pollutants

Cited by 541 publications

References 375 publications

Review of the use of mesoporous silicas for removing dye from textile wastewater

Review of the use of mesoporous silicas for removing dye from textile wastewater

Enhanced Retention of Chelating Reagents in Octadecylsilyl Silica Phase by Interaction with Residual Silanol Groups in Solid Phase Extraction of Divalent Metal Ions

Templated Synthesis for Nanoarchitectured Porous Materials

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