title: Simultaneous Synthesis of WO3-xQuantum Dots and Bundle-Like Nanowires Using a One-Pot Template-Free Solvothermal Strategy and Their Versatile Applications.
abstract: Tungsten oxide (WO3-x), a new alternative to conventional semiconductor material, has attracted numerous attentions owning to its widespread potential applications. Various methods have been reported for the synthesis of WO3-xnanostructures such as nanowires or nanodots. However, templates or surfactants are often required for the synthesis, which significantly complicate the process and hinder the broad applications. Herein, one-pot template/surfactant-free solvothermal method is proposed to synthesize the WO3-xnanostructures including fluorescent quantum dots (QDs) and bundle-like nanowires simultaneously. The as-prepared WO3-xQDs can be well dispersed in aqueous medium, exhibit excellent photoluminescent properties, and show an average size of 3.25 ± 0.25 nm as evidenced by transmission electron microscopy. Meanwhile, the diameter of the WO3-xnanowires is found to be about 27.5 nm as manifested by the scanning electron microscope images. The generation mechanism for these two WO3-xnanostructures are systematically studied and proposed. The WO3-xQDs have been successfully applied in efficient fluorescent staining and specific ferric ion detection. Moreover, the WO3-xnanowires can be utilized as effective dielectric materials for electromagnetic wave absorption.
authors.affiliation: Center for Micro/Nano Luminescent and Electrochemical Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, China.|Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao, 266071, China.|Laboratory of Fiber Materials and Modern Textiles the Growing Base for State Key Laboratory, Qingdao University, Qingdao, 266071, China.|Collaborative Innovation Center for Marine Biomass Fibers Materials and Textiles of Shandong Province, Qingdao University, Qingdao, 266071, China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Center for Micro/Nano Luminescent and Electrochemical Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, China.|Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao, 266071, China.|Laboratory of Fiber Materials and Modern Textiles the Growing Base for State Key Laboratory, Qingdao University, Qingdao, 266071, China.|Collaborative Innovation Center for Marine Biomass Fibers Materials and Textiles of Shandong Province, Qingdao University, Qingdao, 266071, China.
authors.forename: Xiaoxia
authors.initials: X
authors.lastname: Wang
authors.affiliation: Center for Micro/Nano Luminescent and Electrochemical Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, China.|Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao, 266071, China.|Laboratory of Fiber Materials and Modern Textiles the Growing Base for State Key Laboratory, Qingdao University, Qingdao, 266071, China.|Collaborative Innovation Center for Marine Biomass Fibers Materials and Textiles of Shandong Province, Qingdao University, Qingdao, 266071, China.
authors.forename: Yuanhong
authors.initials: Y
authors.lastname: Xu
authors.affiliation: Center for Micro/Nano Luminescent and Electrochemical Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, China.|Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao, 266071, China.|Laboratory of Fiber Materials and Modern Textiles the Growing Base for State Key Laboratory, Qingdao University, Qingdao, 266071, China.|Collaborative Innovation Center for Marine Biomass Fibers Materials and Textiles of Shandong Province, Qingdao University, Qingdao, 266071, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Chen
authors.affiliation: Center for Micro/Nano Luminescent and Electrochemical Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, China.|Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao, 266071, China.|Laboratory of Fiber Materials and Modern Textiles the Growing Base for State Key Laboratory, Qingdao University, Qingdao, 266071, China.|Collaborative Innovation Center for Marine Biomass Fibers Materials and Textiles of Shandong Province, Qingdao University, Qingdao, 266071, China.
authors.forename: Mengli
authors.initials: M
authors.lastname: Liu
authors.affiliation: Center for Micro/Nano Luminescent and Electrochemical Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, China.|Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao, 266071, China.|Laboratory of Fiber Materials and Modern Textiles the Growing Base for State Key Laboratory, Qingdao University, Qingdao, 266071, China.|Collaborative Innovation Center for Marine Biomass Fibers Materials and Textiles of Shandong Province, Qingdao University, Qingdao, 266071, China.
authors.forename: Fushuang
authors.initials: F
authors.lastname: Niu
authors.affiliation: Center for Micro/Nano Luminescent and Electrochemical Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, China.|Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao, 266071, China.|Laboratory of Fiber Materials and Modern Textiles the Growing Base for State Key Laboratory, Qingdao University, Qingdao, 266071, China.|Collaborative Innovation Center for Marine Biomass Fibers Materials and Textiles of Shandong Province, Qingdao University, Qingdao, 266071, China.
authors.forename: Shuang
authors.initials: S
authors.lastname: Wei
authors.affiliation: Center for Micro/Nano Luminescent and Electrochemical Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, China.|Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao, 266071, China.|Laboratory of Fiber Materials and Modern Textiles the Growing Base for State Key Laboratory, Qingdao University, Qingdao, 266071, China.|Collaborative Innovation Center for Marine Biomass Fibers Materials and Textiles of Shandong Province, Qingdao University, Qingdao, 266071, China.
authors.forename: Jingquan
authors.initials: J
authors.lastname: Liu
keywords: bundle-like nanowires; electromagnetic wave absorption; quantum dots; specific ion detection; tungsten oxide