Functionalised polymer brushes grafted onto nanosiliceous support for removal of cadmium (II) in environmental and biological samples

Micro & nano letters

article

Atefeh Ghoroghi¹  Homayon Ahmad Panahi²  Saba Arjmandpour¹  Elham Moniri³ 

[1] Department of Chemistry, Karaj Branch, Islamic Azad University;Department of Chemistry, Central Tehran Branch, Islamic Azad University;Department of Chemistry, Varamin (Pishva) Branch, Islamic Azad University

关键词: organic compounds;    transmission electron microscopy;    cadmium;    nanoparticles;    polymers;    glass;    polymerisation;    nanofabrication;    scanning electron microscopy;    adsorption;    pH;    surface morphology;    Fourier transform infrared spectra;    contaminated site remediation;    chemical engineering;    glass nanoparticles;    environmental samples;    biological samples;    graft polymerisation;    Fourier transform infra-red spectroscopy;    transmission electron microscopy;    cadmium adsorption;    functionalised polymer brushes;    nanosiliceous support;    (3-mercaptopropyl) trimetoxisilane;    N;    N-dimethylacrylamide;    allylamine;    bromoacetic acid;    elemental analysis;    surface morphology;    pH value;    Langmuir-Freundlich model;    Redlich-Peterson model;    Cd;   

DOI  :  10.1049/mnl.2018.5799

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

The experiments in this work were based on the use of grafted polymers on glass nanoparticles for eliminating cadmium ions from environmental and biological samples. Glass nanoparticles (NPs) were modified with (3-mercaptopropyl) trimetoxisilane followed by the graft polymerisation of N,N-dimethylacrylamide and allylamine and then with bromoacetic acid. The grafted polymers on the glass NPs were characterised by Fourier transform infra-red spectroscopy, scanning electron microscopy, and elemental analysis. Surface morphology was investigated via transmission electron microscopy. The optimum pH for cadmium adsorption and the adsorption capacity of the nanoadsorbent were 6.5 and 46.70 mg g −1 , respectively. The Langmuir, Freundlich and Redlich-Peterson models were employed to analyse the equilibrium adsorption data of Cd (II) on the grafted glass NPs. Finally, the grafted glass NPs were utilised for Cd (II) elimination from the biological and environmental samples.

【 授权许可】

CC BY|CC BY-ND|CC BY-NC|CC BY-NC-ND