Sol–gel synthesis of macro–mesoporous titania monoliths and their applications to chromatographic separation media for organophosphate compounds

Konishi, Junko; Fujita, Koji; Nakanishi, Koji; Hirao, Kazuyuki; Morisato, Kei; Miyazaki, Shota; Ohira, Masayoshi

doi:10.1016/j.chroma.2009.06.016

Cited by 96 publications

(78 citation statements)

References 38 publications

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“…Highly crystalline anatase with a porous structure is desirable for p-peptide enrichment as demonstrated in previous reports. [23][24][25] A nitrogen adsorption test was used to investigate the texture of synthesized TiO 2 monolith. The N 2 adsorption-desorption isotherm of TiO 2 monolith shows a typical type II isotherm with the capillary condensation step occurring at relative pressure (P/P 0 ) .…”

Section: Resultsmentioning

confidence: 99%

Binder-Free TiO2 Monolith-Packed Pipette Tips for the Enrichment of Phosphorylated Peptides

Lei

Zhou

et al. 2016

Aust. J. Chem.

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Section: Resultsmentioning

confidence: 99%

Binder-Free TiO2 Monolith-Packed Pipette Tips for the Enrichment of Phosphorylated Peptides

Lei

Zhou

et al. 2016

Aust. J. Chem.

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“…Since titania exhibits selective adsorption of organophosphates, 43),44) monolithic titania columns are regarded as the first candidate of efficient separation media for biomaterials especially in the medical and biological fields. We, 45) as well as Konishi et al, 46) have successfully demonstrated that monolithic titania with the hierarchically porous structure is effective for the separation of phosphates such as adenosine 5¤-monophosphate (AMP), adenosine 5¤-diphosphate (ADP), and adenosine 5¤-triphosphate (ATP). Whereas the separation efficiency of these monolithic columns does not reach the commercial particle-packed column, we believe that more intensive study will improve column performances.…”

Section: Macroporous Titania Monoliths and Their Applicationsmentioning

confidence: 99%

Advances in monolithic porous materials tailored in liquid media: around inorganic oxides and organic polymers

Kanamori

2012

J. Ceram. Soc. Japan

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This review briefly surveys, with an emphasis on the author's works, porous monoliths tailored by liquid-phase synthesis. Porous structures ranging from mesopore to macropore regions are induced in sol gel polymerizing systems, which yield various porous materials such as inorganic oxides, organic inorganic hybrids, crosslinked polymers, and carbons. It should particularly be noted that the networks must be homogeneous enough to obtain monolithic materials with fine pore structures, and for this purpose, the chemical reactions must be carefully designed and controlled. With exemplifying alkoxy-derived sol gel systems and controlled/ living radical polymerization systems, pore formations and applications of resultant materials are demonstrated.

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“…This had led to the development of mesoporous supporting materials with high active reaction areas and catalyst loading amounts, as well as monolithic materials with macro pores that govern overall substance transport being prepared (Kresge et al, 1992;Takahashi et al, 2004;Endo et al, 2006;Konishi et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Preparation of Porous Titania by Sol–Gel Method Using Alkylketene Dimers as a Template

Takahashi

Matsumoto

Horie

et al. 2017

J. Chem. Eng. Japan / JCEJ

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Porous titania (TiO 2 ) particles were prepared using a sol-gel technique employing Alkylketene Dimers (AKD) as a template. The e ects of incremental additions of AKD as a template material on crystal structure, surface and internal morphology, and pore properties were investigated using X-ray di raction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and nitrogen adsorption/desorption. The prepared titania had more than one pore size on its surface and internally. Incremental addition of AKD caused an increase in speci c surface area. The prepared porous titania with the addition of AKD at 5 wt% exhibited a high speci c surface area of 124 m 2 /g, which is markedly higher than in titania without AKD (53.5 m 2 /g). To quantitatively evaluate the porous structure, we performed fractal analysis over a wide scale using box-counting, small X-ray scattering (SAXS) and the FHH (Frenkel-Halsey-Hill) method. Porous titania showed fractal properties, both on its surface and internally.

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Sol–gel synthesis of macro–mesoporous titania monoliths and their applications to chromatographic separation media for organophosphate compounds

Cited by 96 publications

References 38 publications

Binder-Free TiO2 Monolith-Packed Pipette Tips for the Enrichment of Phosphorylated Peptides

Binder-Free TiO2 Monolith-Packed Pipette Tips for the Enrichment of Phosphorylated Peptides

Advances in monolithic porous materials tailored in liquid media: around inorganic oxides and organic polymers

Preparation of Porous Titania by Sol–Gel Method Using Alkylketene Dimers as a Template

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