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Updated: Jan 9, 2026

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Generation of Alginate Microspheres for Biomedical Applications
Published on: August 12, 2012
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通过逆凝技术形成的核心外Ca-alginate珠子,用于从水溶液中增强去除
Mao Seng Hong1, Wee-Jun Ong2, Kai Siang Oh3
1School of Energy and Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, 43900, Sepang, Selangor, Malaysia; Center of Excellence for NaNo Energy & Catalysis Technology (CONNECT), Xiamen University Malaysia, Sepang, Selangor, 43900, Malaysia.
International journal of biological macromolecules
|December 5, 2025
概括
这项研究开发了新的核心外酸珠,使用逆凝来有效地从废水中去除. 与传统方法相比,AC@Fe2O3珠显示出增强的稳定性和优越的吸附能力.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 纳米技术纳米技术
背景情况:
- -酸 (Ca-酸) 珠子对Pb (II) 吸附是有效的,但外部凝限制了污染物扩散.
- 使用逆凝的新型核心外结构可以克服扩散限制并提高吸附效率.
研究的目的:
- 开发和表征核心外Ca-酸盐珠子与固定铁氧化物 (Fe2O3) 纳米粒子和碳酸性材料以去除离子.
- 为了研究这些新型珠子的吸附动力学,容量和可重复使用性.
主要方法:
- 通过逆凝制备核心外的Ca-酸盐珠,将Fe2O3固定在核心和活性炭 (AC) 或石墨烯氧化物 (GO) 在外中.
- 形态分析 (SEM) 来确认核心-结构.
- 吸附实验以评估Pb(II) 移除效率,动力学 (伪二阶模型) 和异温度 (Langmuir模型).
主要成果:
- 精确定义的核心外AC@Fe2O3珠 (0.39毫米外厚度) 已成功合成,具有更好的热和机械稳定性和更高的特定表面积.
- 与混合材料珠子相比,芯珠子具有显著更快的Pb (II) 吸附率和更高的最大吸附能力 (GO@Fe2O3的qmax = 192.308 mg/g).
- 珠子显示出出色的可重复使用性,在五个周期内保持高的Pb(II) 移除效率.
结论:
- 逆凝技术使得能够创建具有卓越的Pb (II) 吸附性能的先进的核心外Ca-alginate珠.
- 这些核心外吸附材料为废水处理应用中有效去除提供了有前途的解决方案.
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