Bioinspired coupling of inorganic layered nanomaterials with marine polysaccharides for efficient aqueous exfoliation and smart actuating hybrids. Zong, L., Li, M., & Li, C. (2017). Advanced Materials, 29(10), 1604691.-成果-仿生智能材料研究组  
Bioinspired coupling of inorganic layered nanomaterials with marine polysaccharides for efficient aqueous exfoliation and smart actuating hybrids. Zong, L., Li, M., & Li, C. (2017). Advanced Materials, 29(10), 1604691. 2017 生物质基 柔性智能材料 绿色环保材料 论文
lvll 5月前 815

WS2 among the TMD family was found to be exfoliated with maximum effiiency by the assistance of lowcost marine SA; SA among a series of polysaccharides could exfoliate WS2 with maximum effiiency. This perfect couple originates from strong interactions of H-bonding and coordination between SA and WS2, where an unprecedented concentration up to 1.39 mg mL−1 of thin-layer WS2 was achieved. The presence of strong interactions also enabled tunable filerloading levels in their composites without showing filer aggregation. Exfoliated WS2 effiiently conveyed their exceptional properties to the macroscopic scale, e.g., strong mechanical properties (i.e., tensile strength of 422.5 MPa and toughness of 25.76 MJ m−3) superior to natural biocomposites (e.g., nacre, bone and dentin), and NIR-active photothermal ability (e.g., up to 300 °C with seconds of low-dose radiation). The waterabsorption and cation-binding capacities of SA further endow the composites with super multiple-stimuli driven actuating applications, e.g., a NIR-driven motor, walking robot, and gripper. The discovery of exfoliation ability in this low-cost marine polysaccharide may pave a new way to expand applications of TMDs in biotechnology, material science, and nanotechnology. These bioinspired smart properties also imply huge potential in development of soft robotics and smart devices.

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