Active removal of waste dye pollutants using Ta3N5/W18O49 nanocomposite fibres

被引:33
作者
Jones, Daniel R. [1 ]
Gomez, Virginia [1 ]
Bear, Joseph C. [2 ]
Rome, Bertrand [1 ]
Mazzali, Francesco [3 ]
McGettrick, James D. [4 ]
Lewis, Aled R. [5 ]
Margadonna, Serena [3 ]
Al-Masry, Waheed A. [6 ]
Dunnill, Charles W. [1 ]
机构
[1] Swansea Univ, Energy Safety Res Inst, Bay Campus, Swansea SA1 8EN, W Glam, Wales
[2] UCL, Dept Chem, Mat Chem Ctr, 20 Gordon St, London WC1H 0AJ, England
[3] Swansea Univ, Coll Engn, Bay Campus, Swansea SA1 8EN, W Glam, Wales
[4] Swansea Univ, SPECIFIC, Bay Campus, Swansea SA1 8EN, W Glam, Wales
[5] Swansea Univ, Syst & Proc Engn Ctr, Bay Campus, Swansea SA1 8EN, W Glam, Wales
[6] King Saud Univ, Dept Chem Engn, Riyadh, Saudi Arabia
关键词
N-DOPED TIO2; ENHANCED PHOTOCATALYTIC ACTIVITY; TITANIUM-DIOXIDE NANOPARTICLES; NEAR-INFRARED ABSORPTION; TUNGSTEN-OXIDE NANOWIRES; VISIBLE-LIGHT; RHODAMINE-B; Z-SCHEME; THIN-FILMS; DEGRADATION MECHANISMS;
D O I
10.1038/s41598-017-04240-4
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
A scalable solvothermal technique is reported for the synthesis of a photocatalytic composite material consisting of orthorhombic Ta3N5 nanoparticles and WOx <= 3 nanowires. Through X-ray diffraction and X-ray photoelectron spectroscopy, the as-grown tungsten(VI) sub-oxide was identified as monoclinic W18O49. The composite material catalysed the degradation of Rhodamine B at over double the rate of the Ta3N5 nanoparticles alone under illumination by white light, and continued to exhibit superior catalytic properties following recycling of the catalysts. Moreover, strong molecular adsorption of the dye to the W18O49 component of the composite resulted in near-complete decolourisation of the solution prior to light exposure. The radical species involved within the photocatalytic mechanisms were also explored through use of scavenger reagents. Our research demonstrates the exciting potential of this novel photocatalyst for the degradation of organic contaminants, and to the authors' knowledge the material has not been investigated previously. In addition, the simplicity of the synthesis process indicates that the material is a viable candidate for the scale-up and removal of dye pollutants on a wider scale.
引用
收藏
页数:16
相关论文
共 114 条
[1]   Principles and mechanisms of photocatalytic dye degradation on TiO2 based photocatalysts: a comparative overview [J].
Ajmal, Anila ;
Majeed, Imran ;
Malik, Riffat Naseem ;
Idriss, Hicham ;
Nadeem, Muhammad Amtiaz .
RSC ADVANCES, 2014, 4 (70) :37003-37026
[2]   Effect of solution pH, ionic strength, and temperature on adsorption behavior of reactive dyes on activated carbon [J].
Al-Degs, Yahya S. ;
El-Barghouthi, Musa I. ;
El-Sheikh, Amjad H. ;
Walker, Gavin M. .
DYES AND PIGMENTS, 2008, 77 (01) :16-23
[3]   Composition of tantalum nitride thin films grown by low-energy nitrogen implantation:: a factor analysis study of the Ta 4f XPS core level [J].
Arranz, A ;
Palacio, C .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2005, 81 (07) :1405-1410
[4]   Visible-light photocatalytic activity of NH3-heat-treated Ta2O5 to decompose rhodamine B in aqueous solution [J].
Bae, Shin-Tae ;
Shin, Hyunho ;
Lee, Sangwook ;
Kim, Dong Wook ;
Jung, Hyun Suk ;
Hong, Kug Sun .
REACTION KINETICS MECHANISMS AND CATALYSIS, 2012, 106 (01) :67-81
[5]   Improvement of TiO2 photocatalytic properties under visible light by WO3/TiO2 and MoO3/TiO2 composites [J].
Bai, Shouli ;
Liu, Haiyan ;
Sun, Jianhua ;
Tian, Ye ;
Chen, Song ;
Song, Jingli ;
Luo, Ruixian ;
Li, Dianqing ;
Chen, Aifan ;
Liu, Chung-Chiun .
APPLIED SURFACE SCIENCE, 2015, 338 :61-68
[6]   Anatase/rutile bi-phasic titanium dioxide nanoparticles for photocatalytic applications enhanced by nitrogen doping and platinum nano-islands [J].
Bear, Joseph C. ;
Gomez, Virginia ;
Kefallinos, Nikolaos S. ;
McGettrick, James D. ;
Barron, Andrew R. ;
Dunnill, Charles W. .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2015, 460 :29-35
[7]   Synthesis and characterization of WO3 thin films by surfactant assisted spray pyrolysis for electrochromic applications [J].
Bertus, L. M. ;
Faure, C. ;
Danine, A. ;
Labrugere, C. ;
Campet, G. ;
Rougier, A. ;
Duta, A. .
MATERIALS CHEMISTRY AND PHYSICS, 2013, 140 (01) :49-59
[8]   THE PECKING ORDER OF FREE-RADICALS AND ANTIOXIDANTS - LIPID-PEROXIDATION, ALPHA-TOCOPHEROL, AND ASCORBATE [J].
BUETTNER, GR .
ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS, 1993, 300 (02) :535-543
[9]   Photocatalytic activity of needle-like TiO2/WO3-x thin films prepared by chemical vapour deposition [J].
Cabrera, Raul Quesada ;
Latimer, Elspeth R. ;
Kafizas, Andreas ;
Blackman, Christopher S. ;
Carmalt, Claire J. ;
Parkin, Ivan P. .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2012, 239 :60-64
[10]   Photosensitized degradation of dyes in polyoxometalate solutions versus TiO2 dispersions under visible-light irradiation:: Mechanistic implications [J].
Chen, CC ;
Zhao, W ;
Lei, PX ;
Zhao, JC ;
Serponer, N .
CHEMISTRY-A EUROPEAN JOURNAL, 2004, 10 (08) :1956-1965