Silver and gold nanoparticles biosynthesized by aqueous extract of burdock root, Arctium lappa as antimicrobial agent and catalyst for degradation of pollutants

被引：48

作者：

Thi Thanh-Ngan Nguyen ^{[1
,2
]}

Thanh-Truc Vo ^{[2
,3
]}

Bich Ngoc-Huong Nguyen ^{[4
]}

Dinh-Truong Nguyen ^{[4
]}

Van-Su Dang ^{[5
]}

Chi-Hien Dang ^{[2
,3
]}

Thanh-Danh Nguyen ^{[1
,2
]}

机构：

[1] Duy Tan Univ, Inst Res & Dev, Da Nang City, Vietnam

[2] Vietnam Acad Sci & Technol, Inst Chem Technol, 1 Mac Dinh Chi St,Dist 1, Ho Chi Minh City, Vietnam

[3] Vietnam Acad Sci & Technol, Grad Univ Sci & Technol, 18 Hoang Quoc Viet, Hanoi, Vietnam

[4] Tan Tao Univ, Sch Biotechnol, Duc Hoa, Long An Provinc, Vietnam

[5] Ho Chi Minh City Univ Food Ind, Dept Chem Technol, Ho Chi Minh, Vietnam

来源：

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2018年 / 25卷 / 34期

关键词：

Nanoparticles; Degradation; Pollutants; Arctium lappa; Antimicrobial; Catalyst; GREEN SYNTHESIS; LEAF EXTRACT; BACTERICIDAL ACTIVITY; SYNTHESIZED SILVER; BIOGENIC SYNTHESIS; REDUCTION; PARTICLES; PLANTS; SIZE;

D O I：

10.1007/s11356-018-3322-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study presents an efficient and facile method for biosynthesis of silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) using aqueous extract of burdock root (BR), A. lappa, and their applications. The nanoparticles were characterized by ultraviolet-visible spectrophotometry, X-ray diffraction, transmission electron microscopy, energy dispersive X-ray, thermogravimetry, and differential thermal analysis. AgNPs capped the BR extract (BR-AgNPs) possessed roughly spherical geometry with an average diameter of 21.3nm while uneven geometry of AuNPs capped the BR extract (BR-AuNPs) showed multi shapes in average size of 24.7nm. The BR-AgNPs strongly inhibited five tested microorganism strains. In particular, the nanoparticles showed excellent catalytic activity for the conversion of pollutants within wastewater. Pseudo-first-order rate constants for the degradation of 4-nitrophenol, methyl orange, and rhodamine B were respectively found 6.77x10(-3), 3.70x10(-3), and 6.07x10(-3)s(-1) for BR-AgNPs and 6.87x10(-3), 6.07x10(-3), and 7.07x10(-3)s(-1) for BR-AuNPs.

引用

页码：34247 / 34261

页数：15

共 24 条

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