SYNTHESIS OF NANOZEOLITE SODALITE FROM RICE HUSK ASH WITHOUT ORGANIC ADDITIVES

被引：19

作者：

Ghasemi, Zahra ^{[1
]}

Younesi, Habibollah ^{[1
]}

Kazemian, Hossein ^{[2
,3
]}

机构：

[1] Tarbiat Modares Univ, Fac Nat Resources & Marine Sci, Dept Environm Sci, Noor, Iran

[2] Univ Western Ontario, Dept Chem & Biochem Engn, Fac Engn, London, ON N6A 3K7, Canada

[3] Univ Tehran, Technol Incubat Ctr, SPAG Zeolite R&D Grp, Tehran, Iran

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 2011年 / 89卷 / 03期

关键词：

sodalite; nanozeolite; rice husk; hydrothermal; synthesis; silica source; X-RAY-DIFFRACTION; SI-29; MAS-NMR; ZSM-5; ZEOLITE; SILICA; REDUCTION; CRYSTALS; GROWTH; NOX; SIZE; LTA;

D O I：

10.1002/cjce.20441

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Rice husks are an excellent source of high-grade amorphous silica which can be extracted from rice husk ash by a suitable alkali solution. The aim of this study is to synthesise nanozeolite sodalite by a hydrothermal method with extracted silica from rice husk as an agricultural waste without organic additives. The effect of crystallisation time on the properties of final products was investigated and the synthesised zeolite was characterised by XRD, SEM, EDX, FT-IR, and BET techniques. Results revealed the significant effects of crystallisation time on the structural properties of nanozeolite. Synthesis of sodalite nanocrystal with crystallite size ranging from 30 to 60 nm was achieved at 60 degrees C and aging of 5 h, without any organic additive.

引用

页码：601 / 608

页数：8

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