使用聚烯酸/皇冠/石墨烯氧化物水凝复合物从水溶液中高效地去除Sr2+
Sheng Chen1,2, Lina Wu2, Zhicheng Wu2
1College of Chemistry, Fuzhou University Fuzhou Fujian 350108 China.
RSC advances
|March 6, 2024
概括
一种新的聚烯酸/皇冠/石墨烯氧化物 (PAA/DB18C6/GO) 水凝复合物有效地从核废物中去除离子 (Sr2+). 这种吸附剂具有高容量,选择性和可重复使用性,为废水处理提供了一个有前途的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 核工程 核工程是指核工程.
背景情况:
- 核废物的有效处理对于可持续的核能至关重要.
- 由于其膨胀特性和易于处理,水凝是废水处理的有效吸附剂.
- 开发用于选择性放射性核素去除的先进材料是一个关键的挑战.
研究的目的:
- 为了合成和表征一种新的聚烯酸/皇冠/氧化石墨烯 (PAA/DB18C6/GO) 水凝复合物.
- 为了研究PAA/DB18C6/GO复合物对离子 (Sr2+) 的吸附性能.
- 评估开发的水凝的选择性,可重复使用性和吸附机制.
主要方法:
- 用于凝合成的激进交联共聚化.
- 使用SEM,FT-IR,TGA和XPS进行表征.
- 批量吸附实验研究时间,pH值,初始度和温度对Sr2+吸附的影响.
主要成果:
- 该PAA/DB18C6/GO复合物表现出379.35毫克g-1的高Sr2+吸附能力.
- 观察到Sr2+的优异选择性,即使存在高Na+和K+度,其去除率也为82.4%.
- 水凝显示出了显著的可重复使用性,在五个循环后保持了超过92%的去除效率,pH值和温度的影响最小.
结论:
- 合成的PAA/DB18C6/GO水凝复合物是一种高效且可重复使用的吸附剂,用于从废水中去除Sr2+.
- 双-18-皇冠--6的独特结构和水凝的高胀有助于其优越的吸附能力和选择性.
- 这种材料为处理核废水中的放射性提供了可行和可持续的解决方案.
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