由藻酸盐制成的超轻海绵具有可加工性和稳定性,可有效去除微塑料
Ruojun Ma1, Yongkang Feng1, Junlong Yu1
1College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, China.
Environmental science and pollution research international
|September 12, 2023
概括
酸海绵有效地去除水中的微塑料. 这种天然材料为水处理提供了绿色解决方案,显示了高的吸收率和效率.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 微塑料 (MP) 是来自自然和人为来源的普遍海洋污染物.
- 国会议员对环境构成重大挑战,需要有效的清除策略.
- 酸是一种天然的,低成本的多糖,具有环境修复的潜力.
研究的目的:
- 开发和评估用于微塑料清除的藻酸盐海绵.
- 调查MPs的酸盐海绵的吸收能力,效率和机制.
- 探索材料在复杂的水性环境中的性能.
主要方法:
- 使用二次冷干燥技术制备酸盐海绵.
- 海绵属性的表征:吸水,多孔性和机械强度.
- 在各种度和持续时间的微塑料去除实验中,包括在金属离子的存在下.
主要成果:
- 酸海绵表现出高吸水率 (1193-5232%) 和多孔性 (81.93%).
- 100mg·L-1微塑料的去除效率达到了92.3%;在较低度下实现了完全的吸收.
- 在复杂的水矩阵中有效吸附MP和金属离子载荷的MP.
结论:
- 酸海绵是一种高度有效和有前途的材料,用于清除微塑料.
- 该研究为水处理和微塑料整治提供了一种新的绿色方法.
- 这项研究扩大了基酸盐基材料在环境保护中的应用范围.
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