Mesoporous silica SBA-15 sheet with perpendicular nanochannels

Yeh, Yi Qi; Lin, Hong Ping; Tang, Chengzhou; Mou, Chung‐Yuan

doi:10.1016/j.jcis.2011.07.011

Cited by 42 publications

(44 citation statements)

References 85 publications

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“…As an adsorbent, MPS with sheet structure has the possibility to enhance the amount of adsorption of various metal ions. However, very few studies on the synthetic procedure for these materials have been reported [29].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of amino-functionalized mesoporous silica sheets and their application for metal ion capture

Nakanishi

Tomita

Kato

2015

Journal of Asian Ceramic Societies

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a b s t r a c tNovel mesoporous silica sheets with surface amino-functional groups (sheet-NH 2 ) were prepared for the efficient adsorption of aqueous metal ions. The sheet-NH 2 were synthesized by a dual-templating process using Pluronic P123 and N-palmitoyl-l-alanine as templates. Two silicone regents were used to form the silica framework: tetraethoxysilane and 3-aminopropyltriethoxysilane. In the synthetic process, the as-prepared silicate was refluxed in ethanol to remove the organic templates remaining from the surface amino groups derived from APTES. The prepared sheet-NH 2 showed widths of several micrometres and small thicknesses of approximately 50 nm. The pore diameter, pore volume and BET surface area of sheet-NH 2 were determined by nitrogen adsorption-desorption isotherms to be 3.1 nm, 0.73 cm 3 g −1 and 189.9 m 2 g −1 , respectively. TEM, XRD, FT-IR and TG-DTA analysis demonstrated that the sheet material had a disordered mesoporous structure and contained organic chains. The adsorptions of aqueous zinc(II) and copper(II) metal ions were examined and compared with amino-functionalized conventional mesoporous silica (MCM-NH 2 ), calcined mesoporous silica sheets and silica beads with no porous structures. Notably, the sheet-NH 2 exhibited the highest adsorption of both zinc and copper ions among the examined materials. In addition, the metal ion sorption equilibrium data of sheet-NH 2 were fitted to the Langmuir isotherm model.

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Section: Introductionmentioning

confidence: 99%

Synthesis of amino-functionalized mesoporous silica sheets and their application for metal ion capture

Nakanishi

Tomita

Kato

2015

Journal of Asian Ceramic Societies

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“…10 The strong segregation of P123 and silicates make good and rigid mesostructure possible. Previously, 15 we did show that decreasing pH value of synthesis would lead to stronger segregation of silicates and P123, and thus a synthesis at pH = 2 presumably would lead to the most rigid (thus flat and no undulating) nanosheet. If we used our previous procedure in Ref.…”

Section: -mentioning

confidence: 69%

“…If we used our previous procedure in Ref. 15 (e.g., direct adjusting pH to 2), however, we got mixtures of particles and disk with channels parallel to the disk surface (as shown in Fig. S3).…”

Section: -mentioning

confidence: 99%

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Two-dimensional crystals of mesoporous silica SBA-15 nanosheets with perpendicular and open channels

2014

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“…17 Some ways of reusing that waste as oily sludge and other wastes are through catalytic and thermal treatment. 18,19,20 The aim of this study is to characterize the different type of petroleum waste (sludge) and its thermocatalytic decomposition.…”

Section: 12mentioning

confidence: 99%

Analysis of Petroleum Oily Sludge Produced from Oil-Water Separator

Filho¹,

Lima²,

Lima³

et al. 2014

Revista Virtual De Química

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Resumo:As borras oleosas são formadas durante as operações de produção, transporte, armazenamento e na refinaria de petróleo. A análise elementar foi realizada com amostras de borra oleosa de petróleo coletadas no Estado do Rio Grande do Norte. Para o elemento carbono e o hidrogênio foram observadas pequenas diferenças entre os mesmos, mas para o elemento oxigênio foram observadas diferenças maiores entre as amostras de borra. As mesmas apresentaram diferenças na composição química da parte inorgânica e orgânica. A borra do separador água e óleo (SAO) 2 apresentou uma elevada quantidade de óleo (94,88%), essa pode ser considerada um resíduo de elevado valor agregado para a indústria de petróleo. Nas análises de saturados, aromáticos, resinas e asfaltenos (SARA), a borra do descarrego apresentou uma elevada quantidade de saturados. O material inorgânico separado da borra do SAO 2 foi caracterizado e apresentou muito enxofre (41,57 %). As borras analisadas apresentaram elevado valor de componentes orgânicos, logo esse material pode ser tratado e reprocessado em unidades de processos na indústria de petróleo.Palavras-chave: Borra Oleosa; Petróleo; Degradação; Resíduo; Meio Ambiente. AbstractThe petroleum oily sludge is formed during the production, transportation, and storage processes as well as in the oil refinery plant. The elemental analysis was performed with samples of petroleum oily sludge collected in the State of Rio Grande do Norte. For the carbon and hydrogen elements, small differences were observed between them, but for the oxygen element, bigger differences between the sludge samples were noticed. They have presented differences in the chemical composition of inorganic and organic parts. The sludge from oil-water separator (OWS) 2 showed a high amount of oil (94.88%), being considered a high value-added residue by the oil industry. In the analyses of saturated, aromatics, resins, and asphaltenes (SARA) components, the sludge from the unloading had a high amount of saturates. The inorganic material separated from the sludge of the OWS 2 was characterized, and presented a lot of sulfur (41.57 %). The sludge analyzed showed a high value of organic components, thus such material can be handled and reprocessed in processing units within the oil industry.

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Mesoporous silica SBA-15 sheet with perpendicular nanochannels

Cited by 42 publications

References 85 publications

Synthesis of amino-functionalized mesoporous silica sheets and their application for metal ion capture

Synthesis of amino-functionalized mesoporous silica sheets and their application for metal ion capture

Two-dimensional crystals of mesoporous silica SBA-15 nanosheets with perpendicular and open channels

Analysis of Petroleum Oily Sludge Produced from Oil-Water Separator

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