Modification, hybridization and applications of saponite: An overview

被引:57
作者
Zhou, Chun Hui [1 ,3 ]
Zhou, Qian [1 ]
Wu, Qi Qi [1 ]
Petit, Sabine [4 ]
Jiang, Xue Chao [1 ]
Xia, Shu Ting [1 ]
Li, Chun Sheng [2 ]
Yu, Wei Hua [1 ,5 ]
机构
[1] Zhejiang Univ Technol, Res Grp Adv Mat & Sustainable Catalysis AMSC, State Key Lab Breeding Base Green Chem Synth Tech, Coll Chem Engn, Hangzhou 310032, Zhejiang, Peoples R China
[2] Zhejiang Inst Geol & Mineral Resource, Engn Res Ctr Nonmetall Minerals Zhejiang Prov, Key Lab Clay Minerals, Minist Land & Resources Peoples Republ China, Hangzhou 310007, Zhejiang, Peoples R China
[3] Qing Yang Inst Ind Minerals, Qing Yang 242804, Chi Zhou, Peoples R China
[4] Univ Poitiers, CNRS, UMR 7285, IC2MP, Poitiers 9, France
[5] Zhejiang Univ Technol, Zhijiang Coll, Shaoxing 312030, Peoples R China
关键词
Saponite; Modification; Hybrid; Adsorbent; Catalyst; Saponite/polymer nanocomposite; 2-DIMENSIONAL CORRELATION-ANALYSIS; POLYCYCLIC AROMATIC-HYDROCARBONS; RESONANCE ENERGY-TRANSFER; TETRAHEDRAL LAYER CHARGE; AL-PILLARED SAPONITES; CLAY-MINERALS; PHOTOPHYSICAL PROPERTIES; INTERLAYER ORGANIZATION; IRIDIUM(III) COMPLEXES; SYNTHETIC SAPONITES;
D O I
10.1016/j.clay.2018.11.002
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Modification of saponite (Sap) by surface engineering and intercalation chemistry introduces guest species into the structure of Sap and enhances the functionalities of the resultant Sap-based hybrids or composites. This review summarizes and evaluates latest scientific advances in the strategies for surface engineering, intercalation and hybridization of Sap, the insights into the relevant mechanisms, and the properties and applications of the resultant Sap-based materials. Studies have indicated that Sap can be inorganically modified by acid activation, inorganic cation exchange, pillaring, and adsorption. The methods of preparing organo-saponite (OSap) hybrids can be categorized as follows: 1) exchanging the inorganic cations in the interlayer space of Sap with organic cations; 2) covalent grafting of organic moieties or groups onto the surface of Sap; 3) intercalating polymer into the interlayer space of Sap by solution intercalation, and melt mixing or in situ polymerization. Organic-inorganic modified Sap can be made through the reactions between organic species and inorganic-modified Sap, or by the combination of inorganic species with organic-modified Sap. Modified Sap exhibits exceptional thermal stability, surface acidity, optical effects and adsorption. As such, the modified Sap can be used for optical materials, adsorbents, catalysts and clay/polymer nanocomposites (CPN). Literature survey suggests that future studies should place emphasis on optimizing and scaling up the modification of Sap, probing the thermodynamics, kinetics and mechanisms of the modification of Sap, endowing Sap with novel functionalities, and accordingly advancing the practical applications of the resultant Sap-based materials.
引用
收藏
页码:136 / 154
页数:19
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