Adsorption of octadecyltrichlorosilane on mesoporous SBA-15

Mirji, Santosh; Halligudi, S.B.; Sawant, Dhanashri P.; Jacob, N.E.; Patil, K.R.; Gaikwad, A.B.; Pradhan, Sayantan

doi:10.1016/j.apsusc.2005.06.009

Cited by 32 publications

(22 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The band at 1468 cm −1 is attributed to C-H bending. The results are The results are closely in agreement with published data [22,23] and indicate that the octadecyl group is chemically bonded on the surface of the silica.…”

Section: Figure1 Thermal Analysis Of Modified Silica (In Air):(a) 3-supporting

confidence: 91%

A Doubly Functionalized Mesoporous Silica Nanoscavenger for the Analytical Extraction of Triphenyltin from Water

Alrashdi¹

2013

SJAC

View full text Add to dashboard Cite

A new analytical procedure has been developed for the determination of triphenyltin(TPT), diphenyltin (DPT), and monophenyltin (MPT) in water samples. The method is based on the use of the dual functionalization of mesoporous silica with diol and C 18 alkane groups for the collection of TPT and its derivatives, DPT and MPT, from water samples, followed by hexylation of the target matrices using the Grignard reagent and quantification by gas chromatography with pulsed flame photometric detection. The nanoscavenger concept replaces conventional solid-and liquid-phase extractants with nanosized particles that can be readily dispersed in aqueous samples. Analyte partitioning between the solid and liquid phases occurs as the solid moves through the sample as a colloidal sol. By tailoring the size of the particles to approximately 250 nm in diameter, they can be readily recovered together with the analytes by simple filtration or centrifugation. Recoveries of TPT, DPT, and MPT chloride spiked matrices ranging from 89.3±2.1 to 97.1±1.3 in seawater samples (n= 9 samples). The limit of detection obtained was typically in the range of 0.5-5 ng Sn/L. The proposed method shows excellent linearity in the range of 0.5-2 ng Sn/L and good repeatability (RSD ≤ 5% at 0.02 ng TPT (as Sn)/L). The method performance is demonstrated with real seawater samples.

show abstract

Section: Figure1 Thermal Analysis Of Modified Silica (In Air):(a) 3-supporting

confidence: 91%

A Doubly Functionalized Mesoporous Silica Nanoscavenger for the Analytical Extraction of Triphenyltin from Water

Alrashdi¹

2013

SJAC

View full text Add to dashboard Cite

show abstract

“…After modification by OTS and CTMS, significant decrease in the surface area was recorded. One possible reason for this is the covering effect of the internal surface area of the catalyst by alkylsilyl groups [13]. Based on the above results, it is suggested that the deposition of Au and attachment of functional groups (OTS and CTMS) occur on the surface of the A-MgO.…”

Section: Physical Properties Of Catalystsmentioning

confidence: 95%

Alkylsilylated Gold Loaded Magnesium Oxide Aerogel Catalyst in the Oxidation of Styrene

2009

View full text Add to dashboard Cite

Aerogel-prepared magnesium oxide (A-MgO) was modified by attachment of gold particles. Subsequent modification of its surface with alkylsilylation of n-octadecyltrichlorosilane and chlorotrimethylsilane exhibits a high catalytic activity for oxidation of styrene with tert-butyl hydroperoxide in liquid phase. Catalytic results show that the introduction of gold on the surface of A-MgO gives a higher catalytic activity in styrene oxidation compared to titanium dioxide. The effect of surface modification of A-MgO was studied with XRD, UV-Vis DR, FTIR and nitrogen adsorption analysis.

show abstract

“…The BET surface area changed from 524 to 318 m 2 g −1 and the pore diameter decreased from 72.8 to 61.3 Å on p-tert-butyl-calix [4]arene-SBA-15. The decrease in surface area and pore diameter indicated that p-tert-butyl-calix [4]arene group was bonded to the mesoporous channels of SBA-15 successfully [25]. The pore diameter and d 100 of two materials indicated that the mesopore uniformity of the parent SBA-15 silica was retained in the modified material [11].…”

Section: Xrdmentioning

confidence: 96%

Preparation, characterization and application of p-tert-butyl-calix[4]arene-SBA-15 mesoporous silica molecular sieves

Huang

Zhao

et al. 2010

Journal of Hazardous Materials

View full text Add to dashboard Cite

Adsorption of octadecyltrichlorosilane on mesoporous SBA-15

Cited by 32 publications

References 21 publications

A Doubly Functionalized Mesoporous Silica Nanoscavenger for the Analytical Extraction of Triphenyltin from Water

A Doubly Functionalized Mesoporous Silica Nanoscavenger for the Analytical Extraction of Triphenyltin from Water

Alkylsilylated Gold Loaded Magnesium Oxide Aerogel Catalyst in the Oxidation of Styrene

Preparation, characterization and application of p-tert-butyl-calix[4]arene-SBA-15 mesoporous silica molecular sieves

Contact Info

Product

Resources

About