4.7 Article

Zwitterionic Polymer Brushes Coated with Mesoporous Silica Nanoparticles as Efficient Adsorbents for Dye Removal from Aqueous Solutions

期刊

ACS APPLIED POLYMER MATERIALS
卷 5, 期 2, 页码 1334-1343

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acsapm.2c01852

关键词

mesoporous silica nanoparticles; polymer brushes; water treatment

向作者/读者索取更多资源

A polymer brush derived from poly(2-(tert-butylamino)ethyl methacrylate)-coated mesoporous silica nanoparticles (PTBAEMA-SO3H@MSNPs) was successfully fabricated in this study. The structure and morphology of PTBAEMA-SO3H@ MSNPs were analyzed using various techniques, including transmission electron microscopy and Fourier-transform infrared spectroscopy. The optimal conditions for the removal of rhodamine B (Rh B) and crystal violet (CV) were determined, and the adsorption equilibrium was fitted with different isotherm models. The study found that PTBAEMA-SO3H@MSNPs are highly effective in removing Rh B and CV from water samples.
In this study, a polymer brush derived from poly(2-(tert-butylamino)ethyl methacrylate)-coated mesoporous silica nanoparticles (PTBAEMA-SO3H@MSNPs) was successfully fabricated. The structure and morphology of PTBAEMA-SO3H@ MSNPs were studied using transmission electron microscopy, Fourier-transform infrared spectroscopy, dynamic light scattering, and elemental analysis techniques. The optimal conditions for the removal of rhodamine B (Rh B) and crystal violet (CV) by PTBAEMA-SO3H@MSNPs were determined. The best adsorption efficiency was found at an Rh B concentration of 150 ppm, adsorbent amount of 10 mg, contact time of 40 min, and pH 5 and at a CV concentration of 350 ppm, contact time of 40 min, and pH 9. The adsorption equilibrium was fitted with the Langmuir, Freundlich, Temkin, and Redlich-Peterson isotherm models in both linear and nonlinear forms. Equilibrium data were best fitted with the Langmuir model, with maximum adsorption capacities of 147.78 and 343.57 mg g-1 for Rh B and CV, respectively. The adsorption of both dyes onto the PTBAEMA-SO3H@MSNP adsorbent occurred spontaneously in an exothermic manner and with increased randomness. The adsorption of Rh B and CV onto the PTBAEMA-SO3H@MSNP adsorbent followed pseudo-second-order kinetics. The findings of this study indicate that PTBAEMA-SO3H@MSNPs are highly effective in removing Rh B and CV from water samples.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据