Adsorption of Organophosphate Pesticide Dimethoate on Gold Nanospheres and Nanorods

被引：32

作者：

Momic, Tatjana ^{[1
]}

Pasti, Tamara Lazarevic ^{[1
]}

Bogdanovic, Una ^{[1
]}

Vodnik, Vesna ^{[1
]}

Mrakovic, Ana ^{[1
]}

Rakocevic, Zlatko ^{[1
]}

Pavlovic, Vladimir B. ^{[2
]}

Vasic, Vesna ^{[1
]}

机构：

[1] Univ Belgrade, Inst Nucl Sci Vinca, POB 522, Belgrade 11001, Serbia

[2] Univ Belgrade, Fac Agr, POB 127, Zemun 11080, Serbia

来源：

JOURNAL OF NANOMATERIALS | 2016年 / 2016卷

关键词：

SURFACE; WATER; NANOPARTICLES; FUNCTIONALIZATION; CHLORPYRIFOS; GRAPHENE; KINETICS; REMOVAL; EXTRACTION; STABILITY;

D O I：

10.1155/2016/8910271

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Organophosphorus pesticide dimethoate was adsorbed onto gold nanospheres and nanorods in aqueous solution using batch technique. Adsorption of dimethoate onto gold nanoparticles was confirmed by UV-Vis spectrophotometry, TEM, AFM, and FTIR analysis. The adsorption of nanospheres resulted in aggregation which was not the case with nanorods. Nanoparticles adsorption features were characterized using Langmuir and Freundlich isotherm models. The Langmuir adsorption isotherm was found to have the best fit to the experimental data for both types of nanoparticles. Adsorption capacity detected for nanospheres is 456 mg/g and for nanorods is 57.1 mg/g. Also, nanoparticles were successfully used for dimethoate removal from spiked drinking water while nanospheres were shown to be more efficient than nanorods.

引用

页数：11

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