Eco-Friendly Synthesis of Flower-Wrinkle Silica Nanoparticles From Rice Husk

IF 2 4区工程技术 Q3 ENGINEERING, CHEMICAL

Advances in Polymer Technology Pub Date : 2025-07-13 DOI:10.1155/adv/8896690

Fatemeh Rezaei, Zainab Zahid Ahmed, Gholam Hossein Zohuri

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Abstract

In this study, silica nanoparticles (SiNPs) with a flower-like wrinkled morphology were synthesized via a green method using rice husk (RH) as a sustainable silica precursor. The synthesis was performed without hazardous chemicals, highlighting the environmental compatibility and cost-effectiveness of the process. The structural and physicochemical properties of the nanoparticles were characterized using FTIR, XRD, scanning electron microscopy (SEM), dynamic light scattering (DLS), energy-dispersive X-ray spectroscopy (EDX), UV–vis, thermogravimetric analysis (TGA), and Differential scanning calorimetry (DSC) analyses. FTIR confirmed the presence of Si─O─Si and Si─OH groups, while XRD revealed that the synthesized particles exhibit a crystalline quartz structure rather than the amorphous form commonly obtained from RH. SEM images showed petal-shaped particles with hierarchical morphology. Thermal analysis indicated high stability up to 800°C. These findings suggest that the developed green synthesis method can yield structurally defined SiNPs suitable for further application in catalysis, adsorption, and nanomaterials development.

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从稻壳中环保合成花皱二氧化硅纳米颗粒

在本研究中，以稻壳（RH）为前驱体，通过绿色方法合成了具有花状褶皱形态的二氧化硅纳米颗粒（SiNPs）。合成过程中没有使用危险化学品，突出了该过程的环境兼容性和成本效益。采用FTIR、XRD、扫描电镜（SEM）、动态光散射（DLS）、能量色散x射线能谱（EDX）、紫外可见光谱（UV-vis）、热重分析（TGA）和差示扫描量热分析（DSC）对纳米颗粒的结构和物理化学性质进行了表征。FTIR证实了Si─O─Si和Si─OH基团的存在，而XRD则表明合成的颗粒呈现出晶体石英结构，而不是通常从RH中获得的无定形。SEM图像显示花瓣状颗粒，具有层次结构。热分析表明，高达800°C的高稳定性。这些发现表明，所开发的绿色合成方法可以产生结构明确的SiNPs，适合在催化，吸附和纳米材料开发中进一步应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advances in Polymer Technology 工程技术-高分子科学

CiteScore

5.50

自引率

0.00%

发文量

审稿时长

9 months

期刊介绍： Advances in Polymer Technology publishes articles reporting important developments in polymeric materials, their manufacture and processing, and polymer product design, as well as those considering the economic and environmental impacts of polymer technology. The journal primarily caters to researchers, technologists, engineers, consultants, and production personnel.