碱性溶液中氧化硅硅的稳定性

Anwar Mustafa, Hens Saputra
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 Telah dilakukan penelitian pengaruh zirconium dalam perbaikan stabilitas silika molecular sieve dalam larutan basa. Struktur molecular sieve yang dibuat adalah hexagonal MCM-41 yang memiliki luas permukaan 1200 m2/g. Pembuatan bahan silika MCM-41 dilakukan menggunakan campuran larutan cethyltrimetilammonium bromida (CTAB), tetraethylorthosilikat (TEOS), natrium hidroksida (NaOH) dan aquades (H2O) dengan perbandingan molar 0,05 : 1,0 : 0,5 : 100. Adapun penambahan zirconium isopropoksida (ZrPr) sejumlah 3% berat terhadap tetraethylorhosilikat. Penambahan zirconium pada MCM-41 tidak merubah karakteristik distribusi ukuran pori, diameter pori rata-rata sekitar 2 nm dengan luas permukaan mencapai 1200 m2/g. Dengan penambahan 3% berat ZrPr dapat meningkatkan stabilitas silika molecular sieve pada larutan basa. Pengamatan struktur dilakukan dengan X-ray diffraction. Karakteristik pori dianalisis dengan metode physisorption menggunakan nitrogen pada 44 K.
 Has conducted research on the effect of zirconium silica molecular sieve improved stability in alkaline solution . Molecular sieve structure is made of hexagonal MCM - 41 which has a surface area of 1200 m2 / g . Preparation of MCM - 41 silica materials was conducted using a mixed solution of cethyltrimetilammonium bromide ( CTAB ) , tetraethylorthosilikat ( TEOS ) , sodium hydroxide ( NaOH ) and distilled water ( H2O ) with a molar ratio of 0.05 : 1.0 : 0.5 : 100 . As for the addition of zirconium isopropoxide ( ZrPr ) a 3 % by weight of the tetraethylorhosilikat . The addition of zirconium in the MCM - 41 does not alter the characteristics of the pore size distribution , average pore diameter of about 2 nm with a surface area to 1200 m2 / g . With the addition of 3 wt% silica ZrPr can increase the stability of molecular sieve in an alkaline solution . Observation of the structure is done with X - ray diffraction . Pore characteristics were analyzed by the method using nitrogen physisorption at 44 K.
 
 
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 Telah dilakukan penelitian pengaruh zirconium dalam perbaikan stabilitas silika molecular sieve dalam larutan basa. Struktur molecular sieve yang dibuat adalah hexagonal MCM-41 yang memiliki luas permukaan 1200 m2/g. Pembuatan bahan silika MCM-41 dilakukan menggunakan campuran larutan cethyltrimetilammonium bromida (CTAB), tetraethylorthosilikat (TEOS), natrium hidroksida (NaOH) dan aquades (H2O) dengan perbandingan molar 0,05 : 1,0 : 0,5 : 100. Adapun penambahan zirconium isopropoksida (ZrPr) sejumlah 3% berat terhadap tetraethylorhosilikat. Penambahan zirconium pada MCM-41 tidak merubah karakteristik distribusi ukuran pori, diameter pori rata-rata sekitar 2 nm dengan luas permukaan mencapai 1200 m2/g. Dengan penambahan 3% berat ZrPr dapat meningkatkan stabilitas silika molecular sieve pada larutan basa. Pengamatan struktur dilakukan dengan X-ray diffraction. Karakteristik pori dianalisis dengan metode physisorption menggunakan nitrogen pada 44 K.
 Has conducted research on the effect of zirconium silica molecular sieve improved stability in alkaline solution . Molecular sieve structure is made of hexagonal MCM - 41 which has a surface area of 1200 m2 / g . Preparation of MCM - 41 silica materials was conducted using a mixed solution of cethyltrimetilammonium bromide ( CTAB ) , tetraethylorthosilikat ( TEOS ) , sodium hydroxide ( NaOH ) and distilled water ( H2O ) with a molar ratio of 0.05 : 1.0 : 0.5 : 100 . As for the addition of zirconium isopropoxide ( ZrPr ) a 3 % by weight of the tetraethylorhosilikat . The addition of zirconium in the MCM - 41 does not alter the characteristics of the pore size distribution , average pore diameter of about 2 nm with a surface area to 1200 m2 / g . With the addition of 3 wt% silica ZrPr can increase the stability of molecular sieve in an alkaline solution . Observation of the structure is done with X - ray diffraction . Pore characteristics were analyzed by the method using nitrogen physisorption at 44 K.
 
 
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引用次数: 0

摘要

& # x0D;& # x0D;& # x0D;研究过锆对碱性溶液中分子硅基稳定性的影响。制造的分子结构为hexagonal MCM-41,其表面积为1200平方米/g。二氧化物m -41采用了溴化铵溶液(CTAB)、四氯化氢、氢氧化钠(naos)和水合物(H2O)的混合物,比较0.05:1.0:0.5:100。至于异丙基杀虫剂(ZrPr)的加入,占总重量的四氯化物的3%。MCM-41中增殖的锆并没有改变孔径的特性,孔径的平均直径约为2 nm,表面积为1200平方米/g。增加ZrPr的3%可以增加碱液中分子硅的稳定性。结构观察是用x射线减法进行的。孔隙特性是通过在44k中使用氮的哲学方法分析的。基于二氧化硅酶的影响有争议的研究促进了生物碱解决方案的稳定。分子结构是由hexagonal MCM - 41制成的,该区域覆盖了1200平方米/ g。对视力的准备- 41硅材料是用a综合solution of cethyltrimetilammonium conducted溴铵(CTAB),钠含量tetraethylorthosilikat (TEOS), hydroxide (NaOH)和distilled water(水)with a ratio of磨牙0。05:1 0:0。5:100。作为对异丙酚的补充(ZrPr),其重量为四氢硅酸盐增加了3%。MCM - 41中对锆石的附注:直径为2 nm,平均直径为1200平方米/ g。随着三种额外的二氧化硅的增加,ZrPr可以增加生物碱解中的分子稳定。观察结果是用X射线减法完成的。使用氮气哲学的方法分析了孢子特性。& # x0D;& # x0D;
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Stabilitas Zirconium-Silika Molecular Sieve dalam Larutan Basa
Telah dilakukan penelitian pengaruh zirconium dalam perbaikan stabilitas silika molecular sieve dalam larutan basa. Struktur molecular sieve yang dibuat adalah hexagonal MCM-41 yang memiliki luas permukaan 1200 m2/g. Pembuatan bahan silika MCM-41 dilakukan menggunakan campuran larutan cethyltrimetilammonium bromida (CTAB), tetraethylorthosilikat (TEOS), natrium hidroksida (NaOH) dan aquades (H2O) dengan perbandingan molar 0,05 : 1,0 : 0,5 : 100. Adapun penambahan zirconium isopropoksida (ZrPr) sejumlah 3% berat terhadap tetraethylorhosilikat. Penambahan zirconium pada MCM-41 tidak merubah karakteristik distribusi ukuran pori, diameter pori rata-rata sekitar 2 nm dengan luas permukaan mencapai 1200 m2/g. Dengan penambahan 3% berat ZrPr dapat meningkatkan stabilitas silika molecular sieve pada larutan basa. Pengamatan struktur dilakukan dengan X-ray diffraction. Karakteristik pori dianalisis dengan metode physisorption menggunakan nitrogen pada 44 K. Has conducted research on the effect of zirconium silica molecular sieve improved stability in alkaline solution . Molecular sieve structure is made of hexagonal MCM - 41 which has a surface area of 1200 m2 / g . Preparation of MCM - 41 silica materials was conducted using a mixed solution of cethyltrimetilammonium bromide ( CTAB ) , tetraethylorthosilikat ( TEOS ) , sodium hydroxide ( NaOH ) and distilled water ( H2O ) with a molar ratio of 0.05 : 1.0 : 0.5 : 100 . As for the addition of zirconium isopropoxide ( ZrPr ) a 3 % by weight of the tetraethylorhosilikat . The addition of zirconium in the MCM - 41 does not alter the characteristics of the pore size distribution , average pore diameter of about 2 nm with a surface area to 1200 m2 / g . With the addition of 3 wt% silica ZrPr can increase the stability of molecular sieve in an alkaline solution . Observation of the structure is done with X - ray diffraction . Pore characteristics were analyzed by the method using nitrogen physisorption at 44 K.
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