Surface modification of ZnO quantum dots coated polylactic acid knitted fabric for photocatalytic application

被引：13

作者：

Bezerra Cabral, Rivaldo Leonn ^{[1
]}

Fontes Galvao, Felipe Mendonca ^{[1
]}

Oliveira Souto Silva, Kesia Karina ^{[1
]}

Silva Felipe, Brenno Henrique ^{[2
]}

Andrade Neto, Nivaldo Freire ^{[3
]}

Almeida Fechine, Pierre Basilio ^{[4
]}

Zille, Andrea ^{[5
]}

Kim, Suyeon ^{[6
]}

Oliveira Nascimento, Jose Heriberto ^{[1
,2
]}

机构：

[1] Univ Fed Rio Grande do Norte, Ctr Technol, Postgrad Program Text Engn, BR-59072970 Natal, RN, Brazil

[2] Univ Fed Rio Grande do Norte, Ctr Technol, Postgrad Program Mech Engn, Natal, RN, Brazil

[3] Univ Fed Rio Grande do Norte, Ctr Technol, Dept Mat Engn, Natal, RN, Brazil

[4] Univ Fed Ceara, Sci Ctr, Dept Analyt Chem & Phys Chem, Fortaleza, Ceara, Brazil

[5] Univ Minho, Ctr Text Sci & Technol 2C2T, Guimaraes, Portugal

[6] Pontificia Univ Catolica Peru, Dept Engn, Lima, Peru

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2022年 / 139卷 / 25期

关键词：

layer-by-layer; nanoparticles; photocatalytic; polylactic acid; quantum dots; ZnO; POLY(LACTIC ACID); RHODAMINE-B; OPTICAL-PROPERTIES; WASTE-WATER; DEGRADATION; DYE; NANOPARTICLES; PHOTODEGRADATION; TEMPERATURE; PARTICLES;

D O I：

10.1002/app.52381

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this work, ZnO quantum dots (ZnOQD) were synthesized by Sol-gel synthesis and impregnated on polylactic acid (PLA) knitted fabric through self-assembly of different cycles from layer-by-layer (LBL) using cationic agent Poly(diallydimethylammonium chloride) (PDDA). Then, morphological, chemical and photocatalytic properties were studied. The results demonstrate that the synthesis provided 8 nm Wurtzite-type ZnO nanoparticles. In addition, X-ray photoelectron spectroscopy (XPS) spectra, X-ray diffraction (XRD) and scanning electron microscopy (SEM) proved the inclusion of ZnOQD on the surface of PLA matrix, which allowed the evaluation of its photocatalytic properties, therefore, coated PLA with five cycles of ZnOQD obtained the best result for degrading 85% of the dye Rhodamine B (RhB) in 360 min under UV radiation, in addition to its reusability for another five cycles of photocatalytic activity.

引用

页数：14

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