Dynamic Light Scattering: A Powerful Tool for In Situ Nanoparticle Sizing

IF 3.2 Q3 CHEMISTRY, PHYSICAL Colloids and Interfaces Pub Date : 2023-02-16 DOI:10.3390/colloids7010015

Zixian Jia, Jiantao Li, Lin Gao, Dezheng Yang, A. Kanaev

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引用次数: 11

Abstract

Due to surface effects and quantum size effects, nanomaterials have properties that are vastly different from those of bulk materials due to surface effects. The particle size distribution plays an important role in chemical and physical properties. The measurement and control of this parameter are crucial for nanomaterial synthesis. Dynamic light scattering (DLS) is a fast and non-invasive tool used to measure particle size, size distribution and stability in solutions or suspensions during nanomaterial preparation. In this review, we focus on the in situ sizing of nanomaterial preparation in the form of colloids, especially for metal oxide nanoparticles (MONs). The measuring principle, including an overview of sizing techniques, advantages and limitations and theories of DLS were first discussed. The instrument design was then investigated. Ex-situ and in situ configuration of DLS, sample preparations, measurement conditions and reaction cell design for in situ configuration were studied. The MONs preparation monitored by DLS was presented, taking into consideration both ex situ and in situ configuration.

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动态光散射：原位测定纳米颗粒尺寸的有力工具

由于表面效应和量子尺寸效应，纳米材料的性质与大块材料的性质因表面效应而大不相同。粒度分布在化学和物理性质中起着重要作用。该参数的测量和控制对于纳米材料的合成至关重要。动态光散射（DLS）是一种快速、无创的工具，用于在纳米材料制备过程中测量溶液或悬浮液中的颗粒尺寸、尺寸分布和稳定性。在这篇综述中，我们专注于胶体形式的纳米材料制备的原位上浆，特别是金属氧化物纳米颗粒（MONs）。首先讨论了DLS的测量原理，包括上浆技术概述、优点和局限性以及理论。然后对仪器设计进行了研究。研究了DLS的非原位和原位构型、样品制备、原位构型的测量条件和反应池设计。介绍了DLS监测的MONs制备，同时考虑了非原位和原位配置。

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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