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  1. Article ; Online: Facile Fabrication of Nanofibrillated Chitin/Ag2O Heterostructured Aerogels with High Iodine Capture Efficiency

    Runan Gao / Yun Lu / Shaoliang Xiao / Jian Li

    Scientific Reports, Vol 7, Iss 1, Pp 1-

    2017  Volume 9

    Abstract: Abstract Nanofibrillated chitin/Ag2O aerogels were fabricated for radioiodine removal. Chitin was first fabricated into nanofibers with abundant acetyl amino groups (–NHCOCH3) on the surface. Then, highly porous chitin nanofiber (ChNF) aerogels were ... ...

    Abstract Abstract Nanofibrillated chitin/Ag2O aerogels were fabricated for radioiodine removal. Chitin was first fabricated into nanofibers with abundant acetyl amino groups (–NHCOCH3) on the surface. Then, highly porous chitin nanofiber (ChNF) aerogels were obtained via freeze-drying. The ChNF aerogels exhibited a low bulk density of 2.19 mg/cm3 and a high specific surface area of 179.71 m2/g. Ag2O nanoparticles were evenly anchored on the surfaces of ChNF scaffolds via strong interactions with –NHCOCH3 groups, subsequently yielding Ag2O@ChNF heterostructured aerogels. The composites were used as efficient absorbents to remove radioiodine anions from water and capture a high amount of I2 vapor in the forms of AgI and iodine molecules. The adsorption capacity of the composite monoliths can reach up to 2.81 mmol/g of I− anions. The high adsorbability of the composite monolithic aerogel signifies its potential applications in radioactive waste disposal.
    Keywords Medicine ; R ; Science ; Q
    Language English
    Publishing date 2017-06-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article: Transparent magnetic wood composites based on immobilizing Fe3O4 nanoparticles into a delignified wood template

    Gan, Wentao / Likun Gao / Shaoliang Xiao / Wenbo Zhang / Xianxu Zhan / Jian Li

    Journal of materials science. 2017 Mar., v. 52, no. 6

    2017  

    Abstract: Wood is one of the key renewable resources due to its excellent structure and physical properties. Functionalized wood and wood-based materials not only possess important engineering applications but also great potential in some new technology fields, ... ...

    Abstract Wood is one of the key renewable resources due to its excellent structure and physical properties. Functionalized wood and wood-based materials not only possess important engineering applications but also great potential in some new technology fields, such as electronics, optics, and energy. Endowing these functional wood-based materials with magnetic properties has an important significance for exploring lightweight building materials or electronic devices. In this study, we report the fabrication of a transparent magnetic wood (TMW) based on filling the index-matching methyl methacrylate and magnetic Fe₃O₄ nanoparticles into the delignified wood template. The presence of the polymer and Fe₃O₄ nanoparticles within the wood structure is monitored by scanning electron microscopy, energy-dispersive X-ray analysis, and Fourier transformation infrared spectroscopy. The resulting TMW possesses moderate transparency and magnetic properties combining with outstanding mechanical performance. Moreover, the influence of the concentration of Fe₃O₄ nanoparticles on the final optical, magnetic, and mechanical properties of TMW is also discussed. This work provides a potential strategy to develop wood-based materials for magneto-optical application.
    Keywords construction materials ; electronic equipment ; electronics ; energy ; energy-dispersive X-ray analysis ; engineering ; infrared spectroscopy ; iron oxides ; magnetic properties ; mechanical properties ; nanoparticles ; optics ; physical properties ; polymers ; renewable resources ; scanning electron microscopy ; wood ; wood anatomy
    Language English
    Dates of publication 2017-03
    Size p. 3321-3329.
    Publishing place Springer US
    Document type Article
    ZDB-ID 2015305-3
    ISSN 1573-4803 ; 0022-2461
    ISSN (online) 1573-4803
    ISSN 0022-2461
    DOI 10.1007/s10853-016-0619-8
    Database NAL-Catalogue (AGRICOLA)

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  3. Article: Mussel Adhesive-Inspired Design of Superhydrophobic Nanofibrillated Cellulose Aerogels for Oil/Water Separation

    Gao, Runan / Hassan Amer / Jian Li / Qi Liu / Shaoliang Xiao / Thomas Rosenau / Wentao Gan / Yun Lu

    ACS sustainable chemistry & engineering. 2018 June 05, v. 6, no. 7

    2018  

    Abstract: Inspiration from biomimetics—the chemistry of mussel adhesives—was taken for imparting superhydrophobic properties to nanofibrillated cellulose (NFC) matrices. A polydopamine (PDA) surface coating was introduced, acting as an anchor between the NFC ... ...

    Abstract Inspiration from biomimetics—the chemistry of mussel adhesives—was taken for imparting superhydrophobic properties to nanofibrillated cellulose (NFC) matrices. A polydopamine (PDA) surface coating was introduced, acting as an anchor between the NFC scaffold and octadecylamine (ODA): PDA is coated onto the NFC scaffolds by its adhesive properties and the ODA is successfully attached to the PDA by a Schiff base reaction. The ultralow density of 6.04 mg/cm3 combined with the high contact angle of 152.5° endows the composite aerogel with superb buoyancy and excellent oil/water separation selectivity. Oil can be rapidly absorbed from a mixture of oil and water. In addition, the modified aerogel can take up a wide range of organic solvents, with the maximum absorption capacity reaching up to 176 g/g, depending on the density of the liquids. The novel superhydrophobic aerogel shows great potential as an adsorber for oil and solvent spills and as an oil–water separator.
    Keywords absorption ; aerogels ; cellulose ; coatings ; hydrophobicity ; mussels ; oils ; schiff bases ; solvents
    Language English
    Dates of publication 2018-0605
    Size p. 9047-9055.
    Publishing place American Chemical Society
    Document type Article
    ISSN 2168-0485
    DOI 10.1021/acssuschemeng.8b01397
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Single-digit-micrometer thickness wood speaker

    Wentao Gan / Chaoji Chen / Hyun-Tae Kim / Zhiwei Lin / Jiaqi Dai / Zhihua Dong / Zhan Zhou / Weiwei Ping / Shuaiming He / Shaoliang Xiao / Miao Yu / Liangbing Hu

    Nature Communications, Vol 10, Iss 1, Pp 1-

    2019  Volume 8

    Abstract: Thin films of several microns in thickness are ubiquitously used in packaging, electronics, and acoustic sensors. Here the authors demonstrate an ultrathin wood film with an aligned and laminal structure and acoustic properties which allows application ... ...

    Abstract Thin films of several microns in thickness are ubiquitously used in packaging, electronics, and acoustic sensors. Here the authors demonstrate an ultrathin wood film with an aligned and laminal structure and acoustic properties which allows application of the film as diaphragm for an audio speaker.
    Keywords Science ; Q
    Language English
    Publishing date 2019-11-01T00:00:00Z
    Publisher Nature Publishing Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Single-digit-micrometer thickness wood speaker

    Wentao Gan / Chaoji Chen / Hyun-Tae Kim / Zhiwei Lin / Jiaqi Dai / Zhihua Dong / Zhan Zhou / Weiwei Ping / Shuaiming He / Shaoliang Xiao / Miao Yu / Liangbing Hu

    Nature Communications, Vol 10, Iss 1, Pp 1-

    2019  Volume 8

    Abstract: Thin films of several microns in thickness are ubiquitously used in packaging, electronics, and acoustic sensors. Here the authors demonstrate an ultrathin wood film with an aligned and laminal structure and acoustic properties which allows application ... ...

    Abstract Thin films of several microns in thickness are ubiquitously used in packaging, electronics, and acoustic sensors. Here the authors demonstrate an ultrathin wood film with an aligned and laminal structure and acoustic properties which allows application of the film as diaphragm for an audio speaker.
    Keywords Science ; Q
    Language English
    Publishing date 2019-11-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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    Inter-library loan at ZB MED

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  6. Article: Improved weathering performance and wettability of wood protected by CeO2 coating deposited onto the surface

    Lu, Yun / Shaoliang Xiao / Runan Gao / Jian Li / Qingfeng Sun

    Holzforschung. 2013 Oct. 18, v. 68, no. 3

    2013  

    Abstract: Wood in outdoor exposure undergoes photochemical degradation mainly caused by the combination of UV radiation and moisture, thus appropriate coatings are desirable. In this paper, the wood surface was first treated with CeO₂ sol and then treated with a ...

    Abstract Wood in outdoor exposure undergoes photochemical degradation mainly caused by the combination of UV radiation and moisture, thus appropriate coatings are desirable. In this paper, the wood surface was first treated with CeO₂ sol and then treated with a layer of octadecyltrichlorosilane (OTS) and the created coating was characterized by field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDXA), X-ray diffraction (XRD), and FTIR spectroscopy (FTIR). The surface became superhydrophobic as the contact angle (CA) for water of the modified wood was 152°. Accelerated aging tests revealed that the modified wood has an excellent weathering resistance.
    Keywords Fourier transform infrared spectroscopy ; X-ray diffraction ; accelerated aging ; ceric oxide ; coatings ; contact angle ; energy-dispersive X-ray analysis ; hydrophobicity ; photochemistry ; scanning electron microscopy ; transmission electron microscopy ; ultraviolet radiation ; weathering ; wettability ; wood
    Language English
    Dates of publication 2013-1018
    Size p. 345-351.
    Publishing place De Gruyter
    Document type Article
    ZDB-ID 1466072-6
    ISSN 1437-434X ; 0018-3830
    ISSN (online) 1437-434X
    ISSN 0018-3830
    DOI 10.1515/hf-2013-0119
    Database NAL-Catalogue (AGRICOLA)

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