Supramolecular Gels

Tifeng Jiao, PhD, is Professor and Vice Director in the School of Environmental and Chemical Engineering at Yanshan University, China. His research is focused on the preparation, assembly, and applications of nanomaterials and nanocomposites. He has published over 120 scientific articles.

• Preface ix1 Molecular Gel as Medium or Intermediate in Functional Materials Synthesis 1Rong Miao and Junxia Peng1.1 Introduction 11.2 Molecular Gel as Intermediate in Synthesizing Fluorescent Sensing Films with High Performance 21.2.1 Molecular Design 31.2.2 Molecular Gel Strategy-Based Sensing Film for VOC Vapor Detection 41.2.3 Molecular Gel Strategy-Based Film for Chemicals Sensing in Liquid Phase 91.3 Molecular Gel as Intermediate in Synthesizing Porous Materials 91.3.1 Porous Materials for Removal of Oil onWater Surface 111.3.2 Porous Materials for VOCs Adsorption 131.4 Summary and Perspectives 14References 162 Preparation and Sensing Application of Fluorescent Organogels and Hydrogels 21Xudong Yu, Lijun Geng, and Jiangbo Guo2.1 Introduction 212.2 Types of Gels that Respond to Different Stimuli 222.2.1 Fluorescent Gels that Respond to Physical Stimuli 222.2.1.1 Fluorescent Gels that Respond to Heat 222.2.1.2 Fluorescent Gels that Respond to Light 232.2.1.3 Fluorescent Gels that Respond to Ultrasound 252.2.1.4 Fluorescent Xerogels that Respond to Grinding or Pressure 282.2.2 Fluorescent Gels for Visual Chemical Stimulus Sensing 302.2.2.1 Fluorescent Gels for Cation Sensing 302.2.2.2 Fluorescent Gels for Anion Sensing 352.2.2.3 Fluorescent Gels for CO2 Sensing 372.2.2.4 Fluorescent Gels for Solvent and Humidity Sensing 382.2.2.5 Fluorescent Gels for Nitroaromatic Derivative Sensing 422.2.2.6 Fluorescent Gels for Amine Sensing 422.3 Summary and Perspectives 45References 463 Preparation of Self-Assembled Composite Hydrogels and Their Application in Biomedicine and Wastewater Treatment 51Ran Wang, Jingxin Zhou, Lexin Zhang, and Tifeng Jiao3.1 Introduction 513.2 Prepared Composite Hydrogels Used in Biomedicine 523.2.1 Self-Assembly and Drug Release Capacities of Organogels via Some Amide Compounds with Aromatic Substituent Headgroups 523.3 Prepared Composite Hydrogels Used inWastewater Treatment 553.3.1 Preparation and Self-assembly of Some Functionalized Supramolecular Hydrogels 553.3.2 Preparation and Self-assembly of Some Graphene Oxide-Based Composite Hydrogels 573.4 Conclusion and Perspectives 64Acknowledgments 65References 654 Conductive Hydrogels for Flexible Mechanical Sensors 71Zhihui Qin and Tifeng Jiao4.1 Introduction 714.2 Fabrication of Conductive Hydrogels 734.2.1 Electronically Conductive Hydrogel 744.2.2 Ionically Conductive Hydrogels 784.3 Conductive Hydrogel-Based Mechanical Sensors 804.3.1 Strain Sensors 814.3.2 Pressure Sensors 854.4 Conclusion and Outlook 89Acknowledgments 90References 905 Recent Progress on Heat-Set Molecular Gels 99Yuangang Li, Zonglin Yang, Yong Chen, Huajing Li, Rong Yang, and Chenyu Huang5.1 Introduction 995.2 Heat-Set Molecular Gels 1015.2.1 Heat-Set Molecular Hydrogel 1015.2.2 Heat-Set Organic Gel 1105.3 Conclusion and Perspectives 118Acknowledgements 120References 1206 Supramolecular Gels from Carbohydrate Biopolymers for Water Remediation 127Xuefeng Zhang and Weiqi Leng6.1 Introduction 1276.2 Hydrogels from Carbohydrate Biopolymers 1286.2.1 Hydrogels from Native Cellulose or Chitin 1296.2.2 Hydrogels from Cellulose or Chitin Derivatives 1306.2.3 Hydrogels from Biopolymer Nanomaterials 1326.2.3.1 Hydrogels from Physically Cross-Linked NC or NCh 1346.2.3.2 Hydrogels from Chemically Cross-Linked NC or NCh 1376.3 Aerogels from Carbohydrate Biopolymers 1386.4 Biopolymer-Derived Gels forWater Remediation 1406.4.1 Heavy Metal Removal 1416.4.2 Organic Pollutants Removal 1466.5 Conclusions and Perspectives 156References 1567 Biobased Aerogels for Oil Spill Remediation 169Weiqi Leng, Sheng He, Xuefeng Zhang, Xiang Wang, and Chanaka M. Navarathna7.1 Introduction 1697.2 Aerogels: Classification, Fabrication, and Properties 1727.2.1 Classification of Aerogels 1727.2.2 Fabrication of Biobased Aerogels 1737.2.2.1 Supercritical Drying 1777.2.2.2 Freeze-drying 1797.2.3 Functionalization of Biobased Aerogels 1867.3 Biobased Aerogels for Oil Spill Remediation 1937.3.1 Parameters That Affect the Oil Absorption Performance 1937.3.2 Mechanisms of Oil Absorption 1977.3.3 Post-processing of Aerogel Absorbent After Oil Spill Remediation 2007.4 Conclusion and Future Scope 201References 2018 Luminescent Supramolecular Gels 215Xue Jin and Pengfei Duan8.1 Introduction 2158.2 Fluorescence in Supramolecular Gels 2168.3 Phosphorescence in Supramolecular Gels 2198.4 Upconverted Luminescence in Supramolecular Gels 2248.5 Circularly Polarized Luminescence in Supramolecular Gels 2308.5.1 CPL-Active Gel Based on Chiral Luminescent Gelators 2348.5.2 CPL-Active Supramolecular Gel Based on Achiral Luminescent Gelators 2388.5.3 CPL-Active Supramolecular Gel by Using Organic Luminophores as Guests 2398.5.4 CPL-Active Supramolecular Gel Based on Inorganic Luminescence Guest 2458.6 Conclusion and Perspectives 249Acknowledgments 250References 250Index 257