Bioadsorption and Separation With Nanoporous Materials

Daehler, Antje; Stevens, GW; O'connor, Aj

doi:10.1142/9781860946561_0026

Cited by 3 publications

(2 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1 These developments have opened up the possibility of applications exploiting the large uniform pore sizes for such as bioseparations and enzyme encapsulation. 2,3 The desire for the access and kinetics provided by larger-pore materials has resulted in an increase in the use of amphiphilic block copolymers rather than simple surfactants as templates for mesoporous molecular sieves. [4][5][6][7][8] SBA-15 has probably been the most commonly studied mesoporous material templated by amphiphilic block copolymers.…”

Section: Introductionmentioning

confidence: 99%

“…Mesoporous molecular sieves such as the M41S family of materials have attracted huge research activity in materials templated by surfactant micellar systems since their discovery in the early 1990s . These developments have opened up the possibility of applications exploiting the large uniform pore sizes for such as bioseparations and enzyme encapsulation. , The desire for the access and kinetics provided by larger-pore materials has resulted in an increase in the use of amphiphilic block copolymers rather than simple surfactants as templates for mesoporous molecular sieves. − …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Micropore Characterization of Mesocellular Foam and Hybrid Organic Functional Mesocellular Foam Materials

et al. 2009

Self Cite

View full text Add to dashboard Cite

The micro- and mesoporous structures of microemulsion templated mesocellular foam (MCF) silica materials aged at different temperatures were investigated by using nitrogen sorption αs-comparison plots and positron annihilation lifetime spectroscopy (PALS). The impact of surface amino functionalization with (3-aminopropyl)triethoxysilane (APTES) on these structures was also studied. The nitrogen sorption αs-comparison plots show that the micropore volume of the MCF silica can be controlled by varying the synthesis aging temperature such that the higher the aging temperature, the smaller the micropore volume. The corresponding PALS data showed that this effect of temperature on micropore volume is a direct consequence of a temperature-dependent micropore population, with more micropores in the MCF material aged at lower temperature. After functionalization of the silica MCF materials with APTES, the BET surface area was seen to have reduced substantially, while maintaining the characteristic mesopore sizes. To quantitatively determine the effect on the micropore volumes of the hybrid APTES functional materials, a macorporous amorphous silica material was similarly functionalized with APTES and a high resolution nitrogen sorption isotherm was recorded at 77 K. For the hybrid APTES functionalized MCF silica materials, the nitrogen sorption αs-comparison plots revealed that the materials were no longer microporous. This result was confirmed via PALS completed in both nitrogen and air environments, which indicated that the micropores present in the silica materials prior to functionalization were blocked and replaced by a closed microporosity associated with the APTES layer formed within the mesopores. This study has shown the highly complementary nature of the results obtained from standard nitrogen sorption measurements and PALS. Additionally, the high-resolution nitrogen sorption comparison plot for the APTES functionalized macroporous silica is reported, which is applicable to the study of other meso- and microporous APTES functionalized materials.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Micropore Characterization of Mesocellular Foam and Hybrid Organic Functional Mesocellular Foam Materials

et al. 2009

Self Cite

View full text Add to dashboard Cite

show abstract

Adsorption of Bovine Serum Albumin on Mesoporous Silica MCM-41

Zhang¹,

Song²,

Li³

et al. 2011

Energy Procedia

View full text Add to dashboard Cite

Predicting adsorption isotherms using a two-dimensional statistical associating fluid theory

Martı́nez

Castro

McCabe

et al. 2007

The Journal of Chemical Physics

View full text Add to dashboard Cite

A molecular thermodynamics approach is developed in order to describe the adsorption of fluids on solid surfaces. The new theory is based on the statistical associating fluid theory for potentials of variable range [A. Gil-Villegas et al., J. Chem. Phys. 106, 4168 (1997)] and uses a quasi-two-dimensional approximation to describe the properties of adsorbed fluids. The theory is tested against Gibbs ensemble Monte Carlo simulations and excellent agreement with the theoretical predictions is achieved. Additionally the authors use the new approach to describe the adsorption isotherms for nitrogen and methane on dry activated carbon.

show abstract

Bioadsorption and Separation With Nanoporous Materials

Cited by 3 publications

References 72 publications

Micropore Characterization of Mesocellular Foam and Hybrid Organic Functional Mesocellular Foam Materials

Micropore Characterization of Mesocellular Foam and Hybrid Organic Functional Mesocellular Foam Materials

Adsorption of Bovine Serum Albumin on Mesoporous Silica MCM-41

Predicting adsorption isotherms using a two-dimensional statistical associating fluid theory

Contact Info

Product

Resources

About