Soft Zr-doped TiO2 Nanofibrous Membranes with Enhanced Photocatalytic Activity for Water Purification

Abstract Self-standing photocatalytic membranes constructed from TiO2 nanofibers hold great promise in environmental remediation; however, challenges still remained for the poor mechanical properties of polycrystalline TiO2 nanofibers. Herein, soft Zr-doped TiO2 (TZ) nanofibrous membranes with robus...

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Autores principales:	Jun Song, Xueqin Wang, Jianhua Yan, Jianyong Yu, Gang Sun, Bin Ding
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/906b9babc7d742d789b2c2d573bf44c4
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spelling	oai:doaj.org-article:906b9babc7d742d789b2c2d573bf44c42021-12-02T11:52:21ZSoft Zr-doped TiO2 Nanofibrous Membranes with Enhanced Photocatalytic Activity for Water Purification10.1038/s41598-017-01969-w2045-2322https://doaj.org/article/906b9babc7d742d789b2c2d573bf44c42017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01969-whttps://doaj.org/toc/2045-2322Abstract Self-standing photocatalytic membranes constructed from TiO2 nanofibers hold great promise in environmental remediation; however, challenges still remained for the poor mechanical properties of polycrystalline TiO2 nanofibers. Herein, soft Zr-doped TiO2 (TZ) nanofibrous membranes with robust mechanical properties and enhanced photocatalytic activity were fabricated via electrospinning technique. The Zr4+ incorporation could effectively inhibit the grain growth and reduce the surface defects and breaking point of TiO2 nanofiber. The as-prepared TZ membranes were composed of well-interconnected nanofibers with a high aspect ratios, small grain size and pore size, which exhibited good tensile strength (1.32 MPa) and showed no obvious damage after 200 cycles of bending to a radius of 2 mm. A plausible bending deformation mechanism of the soft TZ membranes was proposed from microscopic single nanofiber to macroscopical membranes. Moreover, the resultant TZ membranes displayed better photocatalytic performance for methylene blue degradation compared to a commercial catalyst (P25), including high degradation degree of 95.4% within 30 min, good reusability in 5 cycles, and easiness of recycling. The successful preparation of such fascinating materials may open up new avenues for the design and development of soft TiO2-based membranes for various application.Jun SongXueqin WangJianhua YanJianyong YuGang SunBin DingNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jun Song Xueqin Wang Jianhua Yan Jianyong Yu Gang Sun Bin Ding Soft Zr-doped TiO2 Nanofibrous Membranes with Enhanced Photocatalytic Activity for Water Purification
description	Abstract Self-standing photocatalytic membranes constructed from TiO2 nanofibers hold great promise in environmental remediation; however, challenges still remained for the poor mechanical properties of polycrystalline TiO2 nanofibers. Herein, soft Zr-doped TiO2 (TZ) nanofibrous membranes with robust mechanical properties and enhanced photocatalytic activity were fabricated via electrospinning technique. The Zr4+ incorporation could effectively inhibit the grain growth and reduce the surface defects and breaking point of TiO2 nanofiber. The as-prepared TZ membranes were composed of well-interconnected nanofibers with a high aspect ratios, small grain size and pore size, which exhibited good tensile strength (1.32 MPa) and showed no obvious damage after 200 cycles of bending to a radius of 2 mm. A plausible bending deformation mechanism of the soft TZ membranes was proposed from microscopic single nanofiber to macroscopical membranes. Moreover, the resultant TZ membranes displayed better photocatalytic performance for methylene blue degradation compared to a commercial catalyst (P25), including high degradation degree of 95.4% within 30 min, good reusability in 5 cycles, and easiness of recycling. The successful preparation of such fascinating materials may open up new avenues for the design and development of soft TiO2-based membranes for various application.
format	article
author	Jun Song Xueqin Wang Jianhua Yan Jianyong Yu Gang Sun Bin Ding
author_facet	Jun Song Xueqin Wang Jianhua Yan Jianyong Yu Gang Sun Bin Ding
author_sort	Jun Song
title	Soft Zr-doped TiO2 Nanofibrous Membranes with Enhanced Photocatalytic Activity for Water Purification
title_short	Soft Zr-doped TiO2 Nanofibrous Membranes with Enhanced Photocatalytic Activity for Water Purification
title_full	Soft Zr-doped TiO2 Nanofibrous Membranes with Enhanced Photocatalytic Activity for Water Purification
title_fullStr	Soft Zr-doped TiO2 Nanofibrous Membranes with Enhanced Photocatalytic Activity for Water Purification
title_full_unstemmed	Soft Zr-doped TiO2 Nanofibrous Membranes with Enhanced Photocatalytic Activity for Water Purification
title_sort	soft zr-doped tio2 nanofibrous membranes with enhanced photocatalytic activity for water purification
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/906b9babc7d742d789b2c2d573bf44c4
work_keys_str_mv	AT junsong softzrdopedtio2nanofibrousmembraneswithenhancedphotocatalyticactivityforwaterpurification AT xueqinwang softzrdopedtio2nanofibrousmembraneswithenhancedphotocatalyticactivityforwaterpurification AT jianhuayan softzrdopedtio2nanofibrousmembraneswithenhancedphotocatalyticactivityforwaterpurification AT jianyongyu softzrdopedtio2nanofibrousmembraneswithenhancedphotocatalyticactivityforwaterpurification AT gangsun softzrdopedtio2nanofibrousmembraneswithenhancedphotocatalyticactivityforwaterpurification AT binding softzrdopedtio2nanofibrousmembraneswithenhancedphotocatalyticactivityforwaterpurification
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Soft Zr-doped TiO2 Nanofibrous Membranes with Enhanced Photocatalytic Activity for Water Purification

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