TiO2 nanoparticle decorated carbon nanofibers for removal of organic dyes

Abstract To immobilize titania (TiO2) in a matrix and improve the photocatalytic efficiency, TiO2 nanoparticles decorated carbon nanofibers (TiO2-D-CNF) were prepared by ultra- sonication induced adsorption of TiO2 nanoparticles onto the surface of electrospun polyacrylonitrile (PAN) nanofibers, followed by first heat treatment in air and then calcination in nitrogen. The interfacial collision under ultrasonication was responsible for uniform decoration of TiO2 nanoparticles on polymer nanofibers. However, TiO2 nanoparticles were mainly located inside the carbon nanofibers (TiO2-I-CNF) and only some aggregates were observed on the nanofiber surface if the nanofiber composite was obtained by electrospinning the mixed polymer solution containing the nanoparticles. It was found that TiO2-D-CNF possessed both higher dye adsoption capacity and photo- catalytic efficiecy than TiO2-I-CNF due to its hierachical microstructure. The exposure of TiO2 nanoparticles on the CNF surface was beneficial for the adsorption of pollutant and thus photocatalytic performance.

[1]  Chetan S Rao,et al.  Purification of large proteins using ion-exchange membranes , 2001 .

[2]  W. Zhang,et al.  Characterization on oxidative stabilization of polyacrylonitrile nanofibers prepared by electrospinning , 2007 .

[3]  T. Ding,et al.  One-step solvothermal synthesis of SnIn4S8/TiO2 nanocomposite with enhanced visible-light-activated photocatalytic activity , 2014 .

[4]  Min Il Kim,et al.  Preparation of PAN-based electrospun nanofiber webs containing TiO2 for photocatalytic degradation , 2008 .

[5]  Shantikumar V. Nair,et al.  A review on ‘self-cleaning and multifunctional materials’ , 2014 .

[6]  Jianzhong Ma,et al.  Long-lived superhydrophobic surfaces , 2013 .

[7]  Jianyong Yu,et al.  Electrospun nanofibrous materials: a versatile medium for effective oil/water separation , 2016 .

[8]  Yi-Ting Liao,et al.  A novel synthesis of carbon-coated anatase nanocrystals showing high adsorption capacity and photocatalytic activity , 2009 .

[9]  Sheng-Yi Lu,et al.  TiO2-coated carbon nanotubes: A redshift enhanced photocatalysis at visible light , 2010 .

[10]  Jie Han,et al.  Yolk@Shell Nanoarchitecture of Au@r-GO/TiO₂ Hybrids as Powerful Visible Light Photocatalysts. , 2015, Langmuir : the ACS journal of surfaces and colloids.

[11]  Vinod K. Gupta,et al.  Adsorptive removal of dyes from aqueous solution onto carbon nanotubes: a review. , 2013, Advances in colloid and interface science.

[12]  R. Li,et al.  Graphite-nanoplatelet-decorated polymer nanofiber with improved thermal, electrical, and mechanical properties. , 2013, ACS applied materials & interfaces.

[13]  Haiqiang Lu,et al.  Selective oxidation of sacrificial ethanol over TiO2-based photocatalysts during water splitting , 2011 .

[14]  Y. Cohen,et al.  Composite polymer nanofibers with carbon nanotubes and titanium dioxide particles. , 2005, Langmuir : the ACS journal of surfaces and colloids.

[15]  Bao-Lian Su,et al.  Superhydrophobic surfaces: from natural to biomimetic to functional. , 2011, Journal of colloid and interface science.

[16]  Yueming Li,et al.  P25-graphene composite as a high performance photocatalyst. , 2010, ACS nano.

[17]  M. Ksibi,et al.  Discoloration and detoxicification of a Congo red dye solution by means of ozone treatment for a possible water reuse. , 2009, Journal of hazardous materials.

[18]  Robert K.Y. Li,et al.  Preparation, morphology, and mechanical properties of carbon nanotube anchored polymer nanofiber composite , 2014 .

[19]  N. Machado,et al.  Influence of thermal treatment on the structure and photocatalytic activity of TiO2 P25 , 2005 .

[20]  Peng Zhang,et al.  Core/shell nanofibers of TiO2@carbon embedded by Ag nanoparticles with enhanced visible photocatalytic activity , 2011 .

[21]  Andreas Greiner,et al.  Supercapacitors based on hybrid carbon nanofibers containing multiwalled carbon nanotubes , 2009 .

[22]  Wei Li,et al.  Template-assisted synthesis of core–shell α-Fe2O3@TiO2 nanorods and their photocatalytic property , 2015, Journal of Materials Science.

[23]  Gang Wang,et al.  Activated carbon nanofiber webs made by electrospinning for capacitive deionization , 2012 .

[24]  S. Agarwal,et al.  Electrospinning of Manmade and Biopolymer Nanofibers—Progress in Techniques, Materials, and Applications , 2009 .

[25]  M. Rafatullah,et al.  Adsorption of methylene blue on low-cost adsorbents: a review. , 2010, Journal of hazardous materials.

[26]  Yen Wei,et al.  One-dimensional composite nanomaterials: synthesis by electrospinning and their applications. , 2009, Small.

[27]  M. Fernández-García,et al.  Advanced nanoarchitectures for solar photocatalytic applications. , 2012, Chemical reviews.

[28]  W. Daud,et al.  New generation of carbon nanocomposite proton exchange membranes in microbial fuel cell systems , 2012 .

[29]  Lixia Zhao,et al.  Two-dimensional interface engineering of a titania-graphene nanosheet composite for improved photocatalytic activity. , 2013, ACS applied materials & interfaces.

[30]  Y. Cohen,et al.  Enhanced Stability Effect in Composite Polymeric Nanofibers Containing Titanium Dioxide and Carbon Nanotubes , 2009 .

[31]  Yujie Feng,et al.  Enhanced photocatalytic activity for degrading Rhodamine B solution of commercial Degussa P25 TiO2 and its mechanisms. , 2009, Journal of hazardous materials.

[32]  Jie Han,et al.  Nanostructured hybrid shells of r-GO/AuNP/m-TiO₂ as highly active photocatalysts. , 2015, ACS applied materials & interfaces.

[33]  Seung Jae Yang,et al.  Simple fabrication of carbon/TiO2 composite nanotubes showing dual functions with adsorption and photocatalytic decomposition of Rhodamine B , 2012, Nanotechnology.

[34]  Zhihua Yang,et al.  Ultrasonication assisted preparation of carbonaceous nanoparticles modified polyurethane foam with good conductivity and high oil absorption properties. , 2014, Nanoscale.

[35]  Yong Jung Kim,et al.  Fabrication of Electrospinning‐Derived Carbon Nanofiber Webs for the Anode Material of Lithium‐Ion Secondary Batteries , 2006 .

[36]  R. Li,et al.  Ultrasonication induced adsorption of carbon nanotubes onto electrospun nanofibers with improved thermal and electrical performances , 2012 .

[37]  Can Li,et al.  Importance of the relationship between surface phases and photocatalytic activity of TiO2. , 2008, Angewandte Chemie.

[38]  Hande Yukseler,et al.  Indigo dyeing wastewater reclamation by membrane-based filtration and coagulation processes , 2009 .