Facile functionalization of cotton with nanostructured silver/titania for visible-light plasmonic photocatalysis

被引：40

作者：

Abid, Marwa ^{[1
]}

Bouattour, Soraa ^{[1
]}

Ferraria, Ana M. ^{[2
]}

Conceicao, David S. ^{[2
]}

Carapeto, Ana P. ^{[2
]}

Vieira Ferreira, Luis F. ^{[2
]}

Botelho do Rego, Ana M. ^{[2
]}

Chehimi, Mohamed M. ^{[3
,4
]}

Vilar, Manuel Rei ^{[3
]}

Boufi, Sami ^{[5
]}

机构：

[1] Univ Sfax, LCI, Fac Sci, BP1171-3018, Sfax, Tunisia

[2] Univ Lisbon, Inst Super Tecn, Ctr Quim Fis Mol & IN, Av Rovisco Pais, P-1049001 Lisbon, Portugal

[3] Univ Paris Diderot, CNRS, UMR7086, ITODYS,Sorbonne Paris Cite, Paris, France

[4] Univ Paris Est, CNRS, UMR7182, ICMPE,UPEC, F-94320 Thiais, France

[5] Univ Sfax, Fac Sci, LMSE, BP 1171-3000, Sfax, Tunisia

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2017年 / 507卷

关键词：

Plasmonic photocatalyst; Silver-TiO2; Cotton; Visible light; Surface functionalization; SELF-CLEANING COTTON; NANOPARTICLES; PERFORMANCE; TEXTILES; FABRICS; AG; PHOTOREDUCTION; NANOCOMPOSITE; ANATASE;

D O I：

10.1016/j.jcis.2017.07.109

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present work, a simple, reliable and cost-effective approach to functionalize cotton fabrics with Ag-TiO2 nanoparticles strongly bound to the fibres and with visible-light-responsive photo-activity is presented. The hybrid cotton-Ag-TiO2 fabrics were characterized by Raman, AFM, FE-SEM, TGA, XPS GSDR, and LIL to confirm the generation of metallic Ag nanoparticles and crystalline TiO2 and investigate how the concentration of Ag and TiO2 precursors affected the morphology and the luminescence properties of the nanostructured layer grafted on the cotton fibres. The photocatalytic activity of the cotton-Ag-TiO2 hybrid systems was evaluated by the discoloration of Remazol Brilliant Blue R in water under a xenon lamp irradiation (sunlight simulator) equipped with selective filters. The extended photocatalytic activity to the visible is here explained by a synergistic effect of both the excitation of the Ag NPs plasmon resonance by visible light and a delayed electron-hole recombination rate caused by Ag NPs, as it can be observed by UV absorption. (C) 2017 Elsevier Inc. All rights reserved.

引用

页码：83 / 94

页数：12

共 33 条

[1] Hybrid cotton-anatase prepared under mild conditions with high photocatalytic activity under sunlight [J].