Immobilization mechanism of Pb in fly ash-based geopolymer

被引：108
|
作者：
Guo, Bin [1 ]
Pan, De'an [1 ]
Liu, Bo [1 ]
Volinsky, Alex A. [2 ]
Fincan, Mustafa [2 ]
Du, Jinfeng [3 ]
Zhang, Shengen [1 ]
机构：
[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, 30 Xueyuan Rd, Beijing 100083, Peoples R China
[2] Univ S Florida, Dept Mech Engn, Tampa, FL 33620 USA
[3] Shenhua Guohua Elect Power Res Inst Co LTD, Ctr Technol Res, Beijing, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 134卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Lead; Leaded geopolymer; Immobilization mechanism; Chemical property; POTENTIAL USE; TOXIC METALS; PART II; LEAD; TECHNOLOGY; MATRICES; GLASSES; WASTE; SI-29; NMR;
D O I：
10.1016/j.conbuildmat.2016.12.139
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Geopolymer possesses good immobilization capacity for Pb. There are two rival interpretations regarding the immobilization mechanism of Pb. This research investigates the behavior of 3 Pb compounds in geopolymer and clarifies the immobilization mechanism. When Pb contamination is added in the form, soluble in sodium hydroxide solution, the Pb is converted to an amorphous form and participates in the formation of geopolymer network. Successful immobilization of these species relies on chemical bonding and physical encapsulation. On the contrary, the Pb compound inert to sodium hydroxide solution is segregated from the binder and trapped by physical encapsulation. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：123 / 130
页数：8
相关论文
共 50 条
  • [21] Utilization of chitosan biopolymer to enhance fly ash-based geopolymer
    Li, Zhe
    Chen, Rui
    Zhang, Lianyang
    JOURNAL OF MATERIALS SCIENCE, 2013, 48 (22) : 7986 - 7993
  • [22] Fly ash-based geopolymer: clean production, properties and applications
    Zhuang, Xiao Yu
    Chen, Liang
    Komarneni, Sridhar
    Zhou, Chun Hui
    Tong, Dong Shen
    Yang, Hui Min
    Yu, Wei Hua
    Wang, Hao
    JOURNAL OF CLEANER PRODUCTION, 2016, 125 : 253 - 267
  • [23] Fly Ash-Based Geopolymer Binder: A Future Construction Material
    Singh, Nakshatra B.
    MINERALS, 2018, 8 (07):
  • [24] Hydration, Microstructure, and Properties of Fly Ash-Based Geopolymer: A Review
    Khawaji, Mohammad
    MATERIALS SCIENCE-POLAND, 2023, 41 (02): : 263 - 287
  • [25] Synthesis and characterization of coal fly ash-based foamed geopolymer
    Nyale, Sammy M.
    Babajide, Omotola O.
    Birch, Grant D.
    Boeke, Nuran
    Petrik, Leslie F.
    2013 INTERNATIONAL SYMPOSIUM ON ENVIRONMENTAL SCIENCE AND TECHNOLOGY (2013 ISEST), 2013, 18 : 722 - 730
  • [26] Mechanical Properties of Fly Ash-Based Geopolymer with Natural Fiber
    Zulfiati, R.
    Saloma
    Idris, Y.
    SYMPOSIUM OF EMERGING NUCLEAR TECHNOLOGY AND ENGINEERING NOVELTY (SENTEN 2018), 2019, 1198
  • [27] Rheology of fly ash-based geopolymer: Effect of NaOH concentration
    Rifaai, Yasser
    Yahia, Ammar
    Mostafa, Ahmed
    Aggoun, Salima
    Kadri, El-Hadj
    CONSTRUCTION AND BUILDING MATERIALS, 2019, 223 : 583 - 594
  • [28] Effects of Different Heavy Metals on Fly Ash-based Geopolymer
    Guo X.
    Wu L.
    Shi H.
    Guo, Xiaolu (guoxiaolu@tongji.edu.cn), 1600, Chinese Journal of Materials Research (31): : 437 - 444
  • [29] Utilization of chitosan biopolymer to enhance fly ash-based geopolymer
    Zhe Li
    Rui Chen
    Lianyang Zhang
    Journal of Materials Science, 2013, 48 : 7986 - 7993
  • [30] Behaviour of Fly Ash-Based Geopolymer Panels Under Fire
    Luna Galiano, Y.
    Leiva, C.
    Arenas, C.
    Arroyo, F.
    Vilches, L.
    Fernandez Pereira, C.
    Villegas, R.
    WASTE AND BIOMASS VALORIZATION, 2017, 8 (07) : 2485 - 2494
12345