Synthesis and characterization of all-silica DDR zeolite by microwave heating

被引：34

作者：

Zhang, Jianming ^{[1
]}

Li, Meng ^{[1
]}

Lin, Yanjun ^{[2
]}

Liu, Cheng ^{[1
,3
]}

Liu, Xiangyan ^{[1
,4
]}

Bai, Lu ^{[1
,5
]}

Hu, Deng ^{[1
]}

Zeng, Gaofeng ^{[1
]}

Zhang, Yanfeng ^{[1
,3
]}

Wei, Wei ^{[1
]}

Sun, Yuhan ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, Shanghai Adv Res Inst, CAS Key Lab Lowcarbon Convers Sci & Engn, Shanghai 201210, Peoples R China

[2] Luan Min Corp, Changzhi 046000, Shanxi, Peoples R China

[3] ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China

[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[5] Shanghai Univ, Sch Mat Sci, Shanghai 200444, Peoples R China

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2016年 / 219卷

关键词：

Zeolite; DDR; All-silica; Hydrothermal synthesis; Microwave synthesis; SEPARATION CHARACTERISTICS; HYDROTHERMAL SYNTHESIS; SAPO-34; MEMBRANES; RAPID SYNTHESIS; CO2/CH4; PERFORMANCE; DD3R; MECHANOCHEMISTRY; PERMEATION; CO2;

D O I：

10.1016/j.micromeso.2015.07.025

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

All-silica zeolite DDR was prepared by microwave-aided hydrothermal synthesis and characterized by X-ray diffraction, scanning electron microscopy, infra-red spectroscopy, nitrogen adsorption, elemental analysis and thermal gravimetric analysis. Microwave-aided heating significantly reduced the synthesis time from 25 d to 3 d and crystal size from 8 mu m to 2 mu m. With the help of seeding, the synthesis time and crystal size were further reduced to 6 h and 0.7 mu m respectively. The crystal size decreased with seed content. The fragmentation of seed crystals had positive impact on reducing crystal size and increasing product yield. The aging of mother liquor and decrease of H2O/SiO2 had little impact on crystal size. (C) 2015 Elsevier Inc. All rights reserved.

引用

页码：103 / 111

页数：9

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