Phase Transition of Zeolite X under High Pressure and Temperature

被引:0
作者
Lee, Hyunseung [1 ]
Lee, Soojin [1 ]
Lee, Yongmoon [1 ]
机构
[1] Pusan Natl Univ, Dept Geol Sci, Busan 46241, South Korea
来源
ECONOMIC AND ENVIRONMENTAL GEOLOGY | 2023年 / 56卷 / 01期
关键词
Zeolite X; phase transition; bulk modulus; temperature; pressure; DIFFRACTION; FAUJASITE; BEHAVIOR;
D O I
10.9719/EEG.2023.56.1.13
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
X-ray powder diffraction study was conducted on the bulk modulus and phase transition behavior of synthetic zeolite X under high temperature and high pressure. Water and HCO3- solution were used as a PTM. Sample was heated and pressurized up to 250 degrees C and 5.18 GPa. The change of unit cell volume and phase transition were observed by X-ray diffraction. The lattice constants and unit cell volume of zeolite X, gmelinite, natrolite, and smectite were calculated using the GSAS2 program to which Le Bail's whole powder pattern decomposition (WPPD) method was applied. The bulk modulus of each zeolite X and smectite were calculated using the EosFit program to which the Birch-Murnaghan equation was applied. The bulk modulus of zeolite X is 89(3) GPa in water run, and zeolite X is 92(3) GPa in HCO3- solution run. In both run, pressure induced hydration (PIH) occurred due to the inflow of PTM into the zeolite X framework at initial pressure. Zeolite X transited to gmelinite, natrolite, and smectite in water run. Zeolite X, however, transited to smectite in HCO3- solution run. Interzeolite transformation occurred in water run, and did not occur in HCO3- solution run, which is assumed that conflict between the environment to form zeolite and the pH of the HCO3- solution.
引用
收藏
页码:13 / 21
页数:9
相关论文
共 22 条
[1]   EosFit7c and a Fortran module (library) for equation of state calculations [J].
Angel, Ross J. ;
Gonzalez-Platas, Javier ;
Alvaro, Matteo .
ZEITSCHRIFT FUR KRISTALLOGRAPHIE-CRYSTALLINE MATERIALS, 2014, 229 (05) :405-419
[2]   ZEOLITES AND THEIR SYNTHESIS [J].
BARRER, RM .
ZEOLITES, 1981, 1 (03) :130-140
[3]   FINITE ELASTIC STRAIN OF CUBIC CRYSTALS [J].
BIRCH, F .
PHYSICAL REVIEW, 1947, 71 (11) :809-824
[4]   Synchrotron X-ray powder diffraction and computational investigation of purely siliceous zeolite Y under pressure [J].
Colligan, M ;
Forster, PM ;
Cheetham, AK ;
Lee, Y ;
Vogt, T ;
Hriljac, JA .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (38) :12015-12022
[5]   Extraframework cation distributions in X and Y faujasite zeolites: A review [J].
Frising, T. ;
Leflaive, P. .
MICROPOROUS AND MESOPOROUS MATERIALS, 2008, 114 (1-3) :27-63
[6]   A role for subducted super-hydrated kaolinite in Earth's deep water cycle [J].
Hwang, Huijeong ;
Seoung, Donghoon ;
Lee, Yongjae ;
Liu, Zhenxian ;
Liermann, Hanns-Peter ;
Cynn, Hyunchae ;
Vogt, Thomas ;
Kao, Chi-Chang ;
Mao, Ho-Kwang .
NATURE GEOSCIENCE, 2017, 10 (12) :947-+
[7]  
Julbe A., 2015, Encyclopedia of Membranes, P1, DOI DOI 10.1007/978-3-642-40872-4_607-1
[8]   Whole powder pattern decomposition methods and applications: A retrospection [J].
Le Bail, A .
POWDER DIFFRACTION, 2005, 20 (04) :316-326
[9]   Thermal behaviour of siliceous faujasite: Further structural interpretation of negative thermal expansion [J].
Leardini, Lara ;
Quartieri, Simona ;
Vezzalini, Giovanna ;
Arletti, Rossella .
MICROPOROUS AND MESOPOROUS MATERIALS, 2015, 202 :226-233
[10]   Pressure-induced volume expansion of zeolites in the natrolite family [J].
Lee, Y ;
Vogt, T ;
Hriljac, JA ;
Parise, JB ;
Artioli, G .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (19) :5466-5475