The influence of dealumination/desilication on structural properties of metakaolin-based geopolymers

被引：30
|
作者：
Brylewska, Kamila [1 ,2 ]
Rozek, Piotr [1 ]
Krol, Magdalena [1 ]
Mozgawa, Wlodzimierz [1 ]
机构：
[1] AGH Univ Sci & Technol, Fac Mat Sci & Ceram, Al Mickiewicza 30, PL-30059 Krakow, Poland
[2] Jagiellonian Univ, Fac Chem, Gronostajowa 2, PL-30387 Krakow, Poland
来源：
CERAMICS INTERNATIONAL | 2018年 / 44卷 / 11期
关键词：
Geopolymer; Dealumination; Desilication; Mesoporosity; Metakaolin; ACTIVATED FLY-ASH; MECHANICAL-PROPERTIES; SILICATE-GLASSES; ATR-FTIR; ZEOLITE; DESILICATION; PERFORMANCE; MICROSTRUCTURE; ADSORPTION; ALUMINUM;
D O I：
10.1016/j.ceramint.2018.04.095
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The work presents the results of research on the structure modification of metakaolin-based geopolymers with different Si/Al molar ratios in order to obtain hierarchically mesoporous materials. Post-synthesis treatment techniques were applied, involving desilication (with NaOH solution), dealumination (with Na2H2 EDTA solution) and the combination of both methods. The structural, microstructural and textural properties were characterized by XRD, XRF, FT-IR, Raman spectroscopy, SEM and BET. At lower Si/Al ratio amorphous geopolymer with zeolite A was obtained. Subsequent dealumination/desilication caused the significant increase in mesopores volume.
引用
收藏
页码：12853 / 12861
页数：9
相关论文
共 50 条
  • [21] Suitability of metakaolin-based geopolymers for underwater applications
    Joud Hwalla
    Marianne Saba
    Joseph J. Assaad
    Materials and Structures, 2020, 53
  • [22] Effect of vacuum dehydration on gel structure and properties of metakaolin-based geopolymers
    Li, Wei
    Lemougna, Patrick N.
    Wang, Kaituo
    He, Yan
    Tong, Zhangfa
    Cui, Xuemin
    CERAMICS INTERNATIONAL, 2017, 43 (16) : 14340 - 14346
  • [23] Carbonate mineral addition to metakaolin-based geopolymers
    Yip, Christina K.
    Provis, John L.
    Lukey, Grant C.
    van Deventer, Jannie S. J.
    CEMENT & CONCRETE COMPOSITES, 2008, 30 (10): : 979 - 985
  • [24] Acid Neutralization Capacity of Metakaolin-based Geopolymers
    Ukrainczyk, Neven
    Koenders, Eddie
    ce/papers, 2023, 6 (06) : 1277 - 1282
  • [25] Metakaolin-based geopolymers: Efflorescence and its effect on microstructure and mechanical properties
    Longhi, Marlon A.
    Rodriguez, Erich D.
    Walkley, Brant
    Eckhard, Diego
    Zhang, Zuhua
    Provis, John L.
    Kirchheim, Ana P.
    CERAMICS INTERNATIONAL, 2022, 48 (02) : 2212 - 2229
  • [26] Assessment of properties of metakaolin-based geopolymers applied in the conservation of tile facades
    Moutinho, Sara
    Costa, Cristiana
    Andrejkovicova, Slavka
    Mariz, Luis
    Sequeira, Cristina
    Terroso, Denise
    Rocha, Fernando
    Velosa, Ana
    CONSTRUCTION AND BUILDING MATERIALS, 2020, 259
  • [27] Effects of aggregates on the mechanical properties and microstructure of geothermal metakaolin-based geopolymers
    Li, Xing
    Rao, Feng
    Song, Shaoxian
    Corona-Arroyo, Mario A.
    Ortiz-Lara, Noemi
    Aguilar-Reyes, Ena A.
    RESULTS IN PHYSICS, 2018, 11 : 267 - 273
  • [28] Microstructure and transport properties of metakaolin-based geopolymers subjected to accelerated leaching
    Nguyen, Thi Nhan
    Phung, Quoc Tri
    Jacques, Diederik
    Elsen, Jan
    Pontikes, Yiannis
    CONSTRUCTION AND BUILDING MATERIALS, 2024, 426
  • [29] Influence of the Addition of Waste Glass and Microbiological Performance of Metakaolin-Based Geopolymers Cement
    Catauro, Michelina
    D'Angelo, Antonio
    Piccolella, Simona
    Leonelli, Cristina
    Dal Poggetto, Giovanni
    MACROMOLECULAR SYMPOSIA, 2022, 404 (01)
  • [30] Effects of silicas and aluminosilicate synthesized by sol-gel process on the structural properties of metakaolin-based geopolymers
    Costa, Leonardo Martins
    de Souza, Tarcizo da Cruz Costa
    de Oliveira, Raquel Kenya Ferreira Goncalves
    Almeida, Natanael Geraldo Silva
    Houmard, Manuel
    APPLIED CLAY SCIENCE, 2025, 267
12345