Adsorption of toluene, methylcyclohexane and neopentane on silica MCM-41

Russo, Patrícia A.; Carrott, M.M.L. Ribeiro; Carrott, P.J.M.

doi:10.1007/s10450-007-9099-0

Cited by 25 publications

(22 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…9 shows that for all pore geometries the CE pressures increase with temperature; this is because higher pressures are required to build the number of adsorbate layers that induce condensation since the ordering effect of condensation is resisted by kinetic effects (entropy). On the other hand, it is easier to stretch the fluid at higher temperature and the evaporation pressure therefore shifts to higher values, resulting in a smaller hysteresis loop as observed in previous studies [26][27][28][29][30]. Fig.…”

Section: The Effect Of Temperaturementioning

confidence: 56%

On the condensation/evaporation pressures and isosteric heats for argon adsorption in pores of different cross-sections

Wang

Herrera

et al. 2013

Colloids and Surfaces A: Physicochemical and Engineering Aspect

View full text Add to dashboard Cite

Section: The Effect Of Temperaturementioning

confidence: 56%

On the condensation/evaporation pressures and isosteric heats for argon adsorption in pores of different cross-sections

Wang

Herrera

et al. 2013

Colloids and Surfaces A: Physicochemical and Engineering Aspect

View full text Add to dashboard Cite

“…7 Mesoporous silicas also have great potential for the removal of VOCs because of their large BET surface area, controllable and uniform pore size, open pore structure, high porosity, good mechanical stability, and in particular, reliable desorption performance. In previous studies, MCM-41, MCM-48, SBA-15 and HMS type mesoporous silicas have been used as adsorbents for the VOC removal, 2,[9][10][11][12][13][14][15][16] all with pure silica composition in the skeleton. In previous studies, MCM-41, MCM-48, SBA-15 and HMS type mesoporous silicas have been used as adsorbents for the VOC removal, 2,[9][10][11][12][13][14][15][16] all with pure silica composition in the skeleton.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of hollow organosiliceous spheres for volatile organic compound removal

et al. 2014

View full text Add to dashboard Cite

Hollow organosiliceous sphere (HOS) materials have been successfully synthesized by a co-condensation method with tetraethylorthosilicate (TEOS) and organosilane (1,2-bis(triethoxysilyl)ethane, BTSE) as mixed silica sources under acidic conditions. The application of HOSs as adsorbents for the volatile organic compound (VOC) abatement was demonstrated. The HOSs were characterized by transmission electron microscopy (TEM), N 2 sorption isotherms, FT-IR spectroscopy, thermogravimetric analysis (TGA) and Xray photoelectron spectroscopy (XPS). The results indicated that all samples showed a uniform hollow mesostructure and the organic groups were chemically incorporated into the walls of HOSs. The static adsorption and stability behaviors of water vapor, n-hexane and 93# gasoline on HOSs were investigated, with commercial silica gel (SG) and activated carbon (AC) as references. It was found that the sample with an initial molar ratio BTSE/(BTSE + TEOS) of 25% (HOS-25%) had the largest VOC adsorption capacity (1.36 g g À1 n-hexane and 1.35 g g À1 93# gasoline) and the smallest water vapor adsorption capacity (0.0120 g g À1 ) under static adsorption conditions. The dynamic adsorption behaviors of n-hexane on HOS-25% were evaluated via breakthrough curves. The dynamic adsorption capacities of n-hexane are in the following order: SG < AC < HOS-25% and the stability is in the order of AC < SG < HOS-25%. The larger dynamic VOC capacity of the HOSs may be attributed to the synergetic effect between the unique morphology and hybrid walls. The static and dynamic n-hexane and water vapor competitive adsorption results suggested that HOS-25% had a much higher adsorption tendency for VOCs over water vapor. The HOSs with high hydrophobicity, large VOC removal capacity and excellent recyclability show great potential for VOC controlling.

show abstract

“…Recently, a new ordered mesoporous silica family (MCM-41 [6], SBA-15 [7], HMS [8], etc.) was used as adsorbents for the VOCs removal.…”

Section: Introductionmentioning

confidence: 99%

Dynamic adsorption of volatile organic compounds on organofunctionalized SBA-15 materials

Hao

et al. 2009

Chemical Engineering Journal

167

View full text Add to dashboard Cite

Adsorption of toluene, methylcyclohexane and neopentane on silica MCM-41

Cited by 25 publications

References 32 publications

On the condensation/evaporation pressures and isosteric heats for argon adsorption in pores of different cross-sections

On the condensation/evaporation pressures and isosteric heats for argon adsorption in pores of different cross-sections

Synthesis of hollow organosiliceous spheres for volatile organic compound removal

Dynamic adsorption of volatile organic compounds on organofunctionalized SBA-15 materials

Contact Info

Product

Resources

About