铁碳酸盐 (Bi,Cu,Li) 复合物在银后具有抗菌活性 (I) 离子吸附
Alexandra Berbentea1, Mihaela Ciopec1, Adina Negrea1
1Faculty of Chemical Engineering, Biotechnology and Environmental Protection, Politehnica University Timisoara, Vasile Parvan Blvd, No. 6, 300006 Timişoara, Romania.
Toxics
|October 28, 2025
概括
合成了三种新型复合材料,以有效地从水溶液中回收银离子. 这些材料还表现出显著的抗微生物特性,其中一种复合物实现了对测试微生物的100%抑制.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 纳米技术纳米技术
背景情况:
- 水溶液中的银离子污染对环境和健康构成风险.
- 开发高效的吸附剂来回收银离子对于环境修复至关重要.
- 复合材料为目标应用提供可调节的性能.
研究的目的:
- 为了合成和描述新的基于铁的复合材料,用于银离子 (Ag(I)) 恢复.
- 为了研究吸附机制,动力学和银离子去除的热力学.
- 为了评估合成材料的抗菌活性.
主要方法:
- 铁-,铁-铜和铁-碳酸盐复合物的共同沉合成.
- 吸附性研究包括改变pH值,温度,接触时间,吸附剂剂量和初始AgI度.
- 兰木尔和霍-麦凯平衡和运动分析模型.
- 热力学分析和激活能量的确定.
- 对抗细菌和真菌的抗微生物活性评估.
主要成果:
- 最佳吸附条件:pH>4,60分钟接触时间,298K,0.1g吸附剂/25毫升溶液.
- 高吸附能力 (19.3-19.9毫克Ag) /g) 和物理吸附机制.
- 内热和自发吸附过程.
- SFC-Ag复合物对测试的微生物表现出100%的抑制,显示出强大的抗菌活性.
结论:
- 合成的铁基复合材料是银离子回收的有效吸附剂.
- 吸附过程是物理的,内热的和自发的.
- 该SFC-Ag复合物显示出有希望的宽谱抗菌性质,特别是作为抗真菌剂.
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