Light-responsive color switching of self-doped TiO_(2-x)/WO_(3)·0.33H_(2)O hetero-nanoparticles for highly efficient rewritable paper

作     者：Jingmei Zhao Luntao Liu Yun Zhang Zhenyu Feng Feifei Zhao Wenshou Wang Jingmei Zhao;Luntao Liu;Yun Zhang;Zhenyu Feng;Feifei Zhao;Wenshou Wang

作者机构：National Engineering Research Center for Colloidal Materials and School of Chemistry and Chemical EngineeringShandong UniversityJinan 250100China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2021年第14卷第1期

页      面：165-171页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：the Natural Science Foundation of Shandong Province(No.ZR2019JQ15) the National Natural Science Foundation of China(Nos.21671120,51972199).We would like to thank the Analytical Center for Structural Constituent and Physical Property of Core Facilities Sharing Platform,Shandong University for ESR and Raman characterizations 

主　　题：light-response color switching self-doping hetero-nanoparticles rewritable paper 

摘      要：Smart materials that reversibly change color upon light illumination are widely explored for diverse appealing ***,light-responsive color switching materials are mainly limited to organic *** synthesis of inorganic counterparts has remained a significant challenge because of their slow light response and poor ***,we report a seeded growth strategy for the synthesis of TiO_(2-x)/WO_(3)·0.33H_(2)Ohetero-nanoparticles(HNPs)with networked wire-like structure of〜10 nm in diameters that enable the highly reversible light-responsive color switching *** the TiO_(2-x)/WO_(3)·0.33H_(2)OHNPs,T P species self-doped in TiO_(2-x)nanoparticles(NPs)act as efficient sacrificial electron donors(SEDs)and Ti-O-W linkages formed between TiO2-x and WO30.33H2O NPs ensure the nanoscale interfacial contact,endowing the HNPs enhanced photoreductive activity and efficient interfacial charge transfer upon ultraviolet(UV)illumination to achieve highly efficient color *** TiO_(2-x)/WO_(3)·0.33H_(2)OHNPs exhibits rapid light response(180 times).We further demonstrate the applications of TiO_(2-x)/WO_(3)·0.33H_(2)O HNPs in ink-free,light-printable rewritable paper that can be written on freehand or printed on through a photomask using UV *** work opens an avenue for designing inorganic light-responsive color switching nanomaterials and their smart applications.