Cotton functionalized with nanostructured TiO2-Ag-AgBr layer for solar photocatalytic degradation of dyes and toxic organophosphates

被引：28

作者：

Boufi, S. ^{[1
]}

Abid, M. ^{[2
]}

Bouattour, S. ^{[2
]}

Ferraria, A. M. ^{[3
,4
]}

Conceicao, D. S. ^{[3
,4
]}

Vieira Ferreira, L. F. ^{[3
,4
]}

Corbel, G. ^{[5
]}

Neto, P. M. ^{[6
]}

Lopes, P. A. ^{[6
]}

Vilar, M. Rei ^{[7
]}

Botelho do Rego, A. M. ^{[3
,4
]}

机构：

[1] Univ Sfax, Fac Sci, LMSE, BP1171, Sfax 3018, Tunisia

[2] Univ Sfax, Fac Sci, LCI, BP1171, Sfax 3018, Tunisia

[3] Univ Lisbon, CQFM, P-1049001 Lisbon, Portugal

[4] Univ Lisbon, IN Inst Nanosci & Nanotechnol, IBB, Inst Super Tecn, P-1049001 Lisbon, Portugal

[5] Univ Maine, Univ Bretagne Loire, IMMM, UMR CNRS 6283, Ave Olivier Messiaen, F-72085 Le Mans, France

[6] Portuguese Army, Lab Chem Safety & Def, Lab Mil Unit Biol & Chem Def, Lisbon, Portugal

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

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2019年 / 128卷

关键词：

TiO2; Ag-AgBr; Cotton; Plasmonics; Warfare; AG-AT-AGCL; HIGHLY EFFICIENT; RAMAN-SPECTRA; NANOCOMPOSITE; SPECTROSCOPY; MECHANISM; TEXTILES; NANOWIRE; FABRICS; ANATASE;

D O I：

10.1016/j.ijbiomac.2019.01.218

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The functionalization of cotton fabric with photoactive TiO2-Ag-AgBr nanostructured layer has been successfully developed using a low temperature non-aqueous sol-gel route and aqueous suspension of AgBr. Evidence for the growth of TiO2 layer and the immobilization of AgBr nanoparticles have been confirmed by Raman, XRD and XPS. GSDR analysis revealed a strong absorption in the visible region brought by surface Plasmon resonance (SPR) of Ag nanocrystals generated at the surface of AgBr. The XPS evidenced the presence of Ag+, Ag-0 and bromine, suggesting that Ag formed a shell around the deposited AgBr. The immobilized TiO2-Ag-AgBrheterostructured layer imparts a strong photocatalytic activity under visible light for the degradation of dyes in aqueous solution as well as of dimethyl methylphosphonate (DMMP), a chemical warfare agent simulant. These new catalytically active functionalized fabrics, with self-detoxification properties, have great potential for application in chemical protective clothes and might offer new opportunities for the design of functional materials for toxic chemical protection. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：902 / 910

页数：9

共 30 条

[1] Functionalization of cotton fabrics with plasmonic photo-active nanostructured Au-TiO2 layer [J].