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Updated: Jun 29, 2026

Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes

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Published on: April 1, 2013

嵌入式NiS/FeS复合物作为Fenton类催化剂,用于降解Cresol红色

Eman M Abd El-Monaem¹, Jawaher Y Al Nawah², Mohammed Salah Ayoup²

¹Advanced Technology Innovation, Borg El-Arab, Alexandria, Egypt.

|April 12, 2025

概括

一种新型的NiS/FeS@β-CD催化剂使用类似于芬顿的工艺有效降解了克雷索尔红色染料. 这种复合催化剂在最佳条件下实现了99.86%的降解,显示了废水处理的前景.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
催化剂是一种催化剂.

背景情况:

三甲染料,如红色,是工业废水中的持续污染物.
开发高效和稳定的异质催化剂对于染料降解至关重要.
β-环极 (β-CD) 为催化剂固定提供了一个多功能平台.

研究的目的:

设计和合成一种新的异质芬顿类催化剂 (NiS/FeS@β-CD) 用于红色染料降解.
为了优化催化条件,最大限度地去除染料.
研究催化剂的降解机制,动力学和可重复使用性.

主要方法:

NiS/FeS@β-CD复合催化剂的合成.
使用各种分析仪器进行表征.
反应参数 (染料度,催化剂剂量,pH,温度,H2O2度和体积) 的优化.
动力学研究,火试验,XPS分析和ICP-OES用于重复使用性评估.

主要成果:

在优化条件下,NiS/FeS@β-CD催化剂在50毫克/升度下,在优化条件下 (0.01毫克催化剂,pH3,30°C,100毫克/升H2O2) 实现了99.86%的克雷索尔红色染料降解.
降解过程遵循了二次动力学.
催化剂在五个循环中表现出良好的稳定性和可重复使用性,Ni和Fe的浸出最小.

结论:

NiS/FeS@β-CD复合物是一种高效的异质催化剂,用于色红色染料的芬顿式降解.
催化剂表现出卓越的性能,有利的动力学和良好的可重复使用性,使其成为工业废水处理的有希望的候选人.
该研究提供了对吸附/降解机制和催化剂耐用性的见解.

关键词:

克雷索尔红色的红色的红色降解机制的降解机制金属硫化物金属硫化物储存释放效果的作用这是一种β-cyclodextrin.

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