Exploring the potential utilization of gamma-irradiated waste eggshell powder as oil sorbents in natural rubber foams

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2024-10-10 DOI:10.1016/j.radphyschem.2024.112287

Sutinee Khumsap , Nattharika Parapichai , Pattra Lertsarawut , Kiadtisak Saenboonruang

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Abstract

A simple, green approach was developed to enhance the oil adsorption capacity of waste eggshell (WES) powder using gamma irradiation, with varying doses (0–10 kGy). Relevant properties (chemical composition, functional group, particle size, pore characteristics, thermal stability, morphology, and oil adsorption) of both non-irradiated and gamma-irradiated WES powders were determined and reported. The results indicated that gamma irradiation did not alter most properties of the WES powder, except for the pore characteristics and oil adsorption. Specifically, the WES powders irradiated with doses of 2 kGy and 10 kGy had substantially improved adsorption capabilities for engine oil and diesel, respectively, exhibiting approximately threefold enhancements compared to the non-irradiated ones. The suitable gamma-irradiated WES powder obtained from the first part was then incorporated into natural rubber foam (NRF) samples, with varying contents of 0–9 parts per hundred rubber (phr). Their respective properties, consisting of functional group, thermal stability, morphology, density, pore characteristics, and oil adsorption, were subsequently determined. The main findings revealed that the addition of 3–6 phr of gamma-irradiated WES powder increased the densities and oil adsorption capacities of the NRF/WES samples for both engine oil and diesel in comparison to those of neat NRF, while negligibly affecting other properties. The outcomes from this work suggested that gamma-irradiated WES powder not only improved the intended oil adsorption capacity of the NRF samples but also paved the way for alternative, greener approaches to replace the harmful chemical or energy-consuming procedures typically required for the modification/synthesis of similar substances or materials through gamma irradiation.

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探索伽马辐照废蛋壳粉作为天然橡胶泡沫吸油剂的潜在用途

我们开发了一种简单、绿色的方法，利用不同剂量（0-10 kGy）的伽马辐照来提高废弃蛋壳粉（WES）的油吸附能力。研究人员测定并报告了未经过辐照和经过伽马辐照的废蛋壳粉末的相关特性（化学成分、官能团、粒度、孔隙特征、热稳定性、形态和吸油能力）。结果表明，除孔隙特征和油吸附性外，伽马辐照并没有改变 WES 粉末的大多数特性。具体来说，辐照剂量分别为 2 kGy 和 10 kGy 的 WES 粉末对机油和柴油的吸附能力都有大幅提高，与未辐照的粉末相比，提高了约三倍。然后，将从第一部分中获得的经过伽马射线辐照的合适 WES 粉末加入天然橡胶泡沫（NRF）样品中，每百橡胶中的含量为 0-9 份（phr）。随后测定了它们各自的特性，包括官能团、热稳定性、形态、密度、孔隙特征和油吸附性。主要研究结果表明，与纯 NRF 相比，添加 3-6 phr 的伽马辐照 WES 粉末可提高 NRF/WES 样品对发动机油和柴油的密度和吸油能力，而对其他性能的影响可以忽略不计。这项工作的结果表明，经过伽马射线辐照的 WES 粉末不仅提高了 NRF 样品的预期吸油能力，而且还为替代性的绿色方法铺平了道路，以取代通过伽马射线辐照改性/合成类似物质或材料通常所需的有害化学或耗能程序。

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

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.