Er-doped titanium dioxide/silicon dioxide fibres with enhanced photodegradation performance

Micro & nano letters

article

Jidong Wang¹  Xiaolong An¹  Yuan Yu¹  Xiaoqiang Li¹  Mingqiao Ge¹ 

[1]College of Textile & Clothing, Jiangnan University

[2]Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University

关键词: dyes;    erbium;    titanium compounds;    silicon compounds;    semiconductor materials;    nanofibres;    nanocomposites;    nanofabrication;    sol-gel processing;    electrospinning;    calcination;    condensation;    membranes;    photochemistry;    catalysis;    erbium-doped titanium dioxide-silicon dioxide fibres;    sol-gel process;    electrospinning;    calcination;    one-pot condensation;    erbium trioxide;    tetraethyl orthosilicate;    titanium n-butoxide;    nitric acid solution;    ethyl alcohol;    poly(vinylpyrrolidone);    fibrous membrane;    physicochemical properties;    nanofibrous composite;    photodegradation tests;    photocatalytic activity;    methyl orange;    TiO2Er-SiO2;   

DOI  :  10.1049/mnl.2017.0541

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

In this work, an erbium-doped titanium dioxide/silicon dioxide (Er@TS) fibrous composite was fabricated by a combination of sol–gel process, electrospinning and calcination. The precursor sol was prepared from one-pot condensation of Er trioxide, tetraethyl orthosilicate and titanium n-butoxide in the mixture of nitric acid solution (pH = 2.0) and ethyl alcohol. After the addition of poly(vinylpyrrolidone), the precursor of fibrous membrane was fabricated by electrospinning, followed by calcination to form the Er@TS composite. The physicochemical properties of fibrous membranes, both of before and after calcination, were characterised. The earth rare element Er is aiming to enhance the overall photodegradation capability of nanofibrous composite. The results of photodegradation tests demonstrated that the Er@TS composite exhibit enhanced photocatalytic activity for degradation of methyl orange.

【 授权许可】

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