title: Highly Flexible Superhydrophobic and Fire-Resistant Layered Inorganic Paper.
abstract: Traditional paper made from plant cellulose fibers is easily destroyed by either liquid or fire. In addition, the paper making industry consumes a large amount of natural trees and thus causes serious environmental problems including excessive deforestation and pollution. In consideration of the intrinsic flammability of organics and minimizing the effects on the environment and creatures, biocompatible ultralong hydroxyapatite nanowires are an ideal building material for inorganic fire-resistant paper. Herein, a new kind of free-standing, highly flexible, superhydrophobic, and fire-resistant layered inorganic paper has been successfully prepared using ultralong hydroxyapatite nanowires as building blocks after the surface modification with sodium oleate. During the vacuum filtration, ultralong hydroxyapatite nanowires assemble into self-roughened setalike microfibers, avoiding the tedious fabrication process to construct the hierarchical structure; the self-roughened microfibers further form the inorganic paper with a nacrelike layered structure. We have demonstrated that the layered structure can significantly improve the resistance to mechanical destruction of the as-prepared superhydrophobic paper. The as-prepared superhydrophobic and fire-resistant inorganic paper shows excellent nonflammability, liquid repellency to various commercial drinks, high thermal stability, and self-cleaning property. Moreover, we have explored the potential applications of the superhydrophobic and fire-resistant inorganic paper as a highly effective adsorbent for oil/water separation, fire-shielding protector, and writing paper.
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, PR China.|University of Chinese Academy of Sciences , Beijing 100049, PR China.
authors.forename: Fei-Fei
authors.initials: FF
authors.lastname: Chen
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, PR China.|University of Chinese Academy of Sciences , Beijing 100049, PR China.
authors.forename: Ying-Jie
authors.identifier: http://orcid.org/0000-0002-8428-4586
authors.initials: YJ
authors.lastname: Zhu
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, PR China.|University of Chinese Academy of Sciences , Beijing 100049, PR China.
authors.forename: Zhi-Chao
authors.initials: ZC
authors.lastname: Xiong
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, PR China.|University of Chinese Academy of Sciences , Beijing 100049, PR China.
authors.forename: Tuan-Wei
authors.initials: TW
authors.lastname: Sun
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, PR China.|University of Chinese Academy of Sciences , Beijing 100049, PR China.
authors.forename: Yue-Qin
authors.initials: YQ
authors.lastname: Shen
keywords: fire-resistant; hydroxyapatite; nanowires; paper; superhydrophobic