Low-cost materials for boron adsorption from water

Sanfeliu, Cristina; Martínez‐Máñez, Ramón; Sancenón, Félix; Soto, Juán; Puchol, Victoria; Amorós, Pedro; Marcos, M. Dolores

doi:10.1039/c2jm32819d

Cited by 24 publications

(13 citation statements)

References 48 publications

(44 reference statements)

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“…Because of their environmental friendly nature and polyhydroxy structure, carbohydrate-containing compounds and polymers have been added in solution or anchored on material surface as boric acid complexing agents [30][31][32]. Microporous membrane surface has also been glycosylated towards a complexing membrane, which can potentially be an alternative material of the current ultrafiltration membrane rendering effective depression of boron content in the pretreatment stage of a membrane based water treatment process [33].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of hydrophilic polysulfone membranes having antifouling and boron adsorption properties via blending with an amphiphilic graft glycopolymer

Shi

Meng

et al. 2013

Journal of Membrane Science

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Section: Introductionmentioning

confidence: 99%

Synthesis of hydrophilic polysulfone membranes having antifouling and boron adsorption properties via blending with an amphiphilic graft glycopolymer

Shi

Meng

et al. 2013

Journal of Membrane Science

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“…Anhydrous toluene, iodopropyl trimethoxysilane, acetonitrile, 2,2′,4,4′,4″-pentamethoxy triphenyl methanol (CAS number 1755-51-7), potassium carbonate, dichloromethane, ethanol, distilled water were acquired from Sigma-Aldrich Quimica, Madrid, Spain and used without supplementary purification. Calcined UVM-7 was prepared according to known procedures [ 24 ].…”

Section: Methodsmentioning

confidence: 99%

Development of a Textile Nanocomposite as Naked Eye Indicator of the Exposition to Strong Acids

Pallás

Marcos

Martínez‐Máñez

et al. 2017

Sensors

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Chemical burns, mainly produced by acids, are a topic of concern. A new sensing material for the detection of strong acids able to be incorporated into textiles has been developed. The material is prepared by the covalent attachment of 2,2′,4,4′,4″-pentamethoxy triphenyl methanol to a mesoporous material which further is included in a nitro resin to obtain a colourless composite. The response of this composite to diverse acid solutions was tested showing the appearance of an intense purple colour (with a colour difference higher than 160) that can be monitored by the naked eye or could be easily digitised to feed an instrumental sensor. Reversibility and resistance to washing cycles were studied with positive results. Finally, the response of the sensing composite to acid vapours was assayed, observing a colour change similar to that found in solution.

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“…We have previously described the preparation of various materials and supports for boron removal from aqueous solutions [20][21][22]. These materials were built by grafting saccharide functionalities onto mesoporous silica scaffolds with different porous structures.…”

Section: Introductionmentioning

confidence: 99%

11B-MAS NMR approach to the boron adsorption mechanism on a glucose-functionalised mesoporous silica matrix

Sanfeliu

Martínez‐Máñez

Sancenón

et al. 2018

Microporous and Mesoporous Materials

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et al.. 11 B-MAS NMR approach to the boron adsorption mechanism on a glucose-functionalised mesoporous silica matrix. Microporous and Mesoporous Materials, Elsevier, 2018, 266, pp.ABSTRACT: Boron chemistry has raised much interest because, despite the difference between necessities and toxicity being very narrow, it is still widely used in industrial processes. In a previous work we reported an adsorbent for boron extraction from water by the functionalisation of a UVM-7 mesoporous silica matrix with gluconamide moieties. The ability of this material to adsorb boron is based on its well-known affinity for coordinating the cis-diols present in attached saccharide. Although much research on the formation of boron esters with sugars and sugar derivatives in solution has been done, very few reports have dealt with the adsorption mechanism of boron onto functionalised materials in the solid state. Hence an in-depth study of the adsorption process was conducted in this paper. For this purpose, several solids with increasing boron contents were prepared from the gluconamide-functionalised UVM-7 material and an isothermal boron adsorption curve was obtained. The 11 B and 13 C MAS NMR techniques were used to characterise the obtained solids, and the simulation of the boron NMR and isothermal adsorption combined data was accomplished to enlighten the boron adsorption process. A model with three different coordination environments, two possible adsorption sites and the presence of oligomeric boron species allowed us to reproduce not only the isothermal boron adsorption curve, but also the evolution of the integrated areas for the signals in the 11 B MAS NMR spectra obtained for the different boron-containing gluconamide-functionalised UVM-7 materials.

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Low-cost materials for boron adsorption from water

Cited by 24 publications

References 48 publications

Synthesis of hydrophilic polysulfone membranes having antifouling and boron adsorption properties via blending with an amphiphilic graft glycopolymer

Synthesis of hydrophilic polysulfone membranes having antifouling and boron adsorption properties via blending with an amphiphilic graft glycopolymer

Development of a Textile Nanocomposite as Naked Eye Indicator of the Exposition to Strong Acids

11B-MAS NMR approach to the boron adsorption mechanism on a glucose-functionalised mesoporous silica matrix

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