A functionalized phosphonate-rich organosilica layered hybridmaterial (PSLM) fabricated through a mild process for heavymetal uptake

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F14%3A33152598" target="_blank" >RIV/61989592:15310/14:33152598 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0304389414000697" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0304389414000697</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jhazmat.2014.01.045" target="_blank" >10.1016/j.jhazmat.2014.01.045</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A functionalized phosphonate-rich organosilica layered hybridmaterial (PSLM) fabricated through a mild process for heavymetal uptake

Popis výsledku v původním jazyce

A phosphonate-rich organosilica layered hybrid material (PSLM) made of 3-(trihydroxysilyl)propylmethylphosphonate, monosodium salt, as the single silica source, has been obtained from its aque-ous solution through a xerogel process and mild thermal aging. The method is simple, affording bulkquantities of powdered PSLM in a single-step. The hybrid is stable in water and possesses a high con-tent of phosphonate groups fixed on the solid matrix. In addition, PSLM shows good thermal stability,which exceeds300?C in air. The material was characterized using SEM, TEM, XRD, FT-IR and TGA tech-niques. Potentiometric titrations show that PSLM bears high-surface density of phosphonate groups(3 mmol g?1). As a result, the material displays high metal uptake capacity for heavy metal ions such asCu2+(2.72 mmol g?1), Pb2+(1.67 mmol g?1) and Cd2+(1.00 mmol g?1) at neutral pH values e.g. the pH ofnatural waters. Detailed theoretical modeling using a Surface Complexation Model combined with Elec-tron P

Název v anglickém jazyce

A functionalized phosphonate-rich organosilica layered hybridmaterial (PSLM) fabricated through a mild process for heavymetal uptake

Popis výsledku anglicky

A phosphonate-rich organosilica layered hybrid material (PSLM) made of 3-(trihydroxysilyl)propylmethylphosphonate, monosodium salt, as the single silica source, has been obtained from its aque-ous solution through a xerogel process and mild thermal aging. The method is simple, affording bulkquantities of powdered PSLM in a single-step. The hybrid is stable in water and possesses a high con-tent of phosphonate groups fixed on the solid matrix. In addition, PSLM shows good thermal stability,which exceeds300?C in air. The material was characterized using SEM, TEM, XRD, FT-IR and TGA tech-niques. Potentiometric titrations show that PSLM bears high-surface density of phosphonate groups(3 mmol g?1). As a result, the material displays high metal uptake capacity for heavy metal ions such asCu2+(2.72 mmol g?1), Pb2+(1.67 mmol g?1) and Cd2+(1.00 mmol g?1) at neutral pH values e.g. the pH ofnatural waters. Detailed theoretical modeling using a Surface Complexation Model combined with Elec-tron P

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Hazardous Materials

ISSN

0304-3894

e-ISSN

—

Svazek periodika

270

Číslo periodika v rámci svazku

APR

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

118-126

Kód UT WoS článku

000335109200014

EID výsledku v databázi Scopus

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