银酸盐在可见蓝色LED光下具有抗菌和光催化性能,其支持来自亚马逊自然来源的生物岩
Ygor Geann Dos Santos Leite1, Francisco Xavier Nobre2, José Fábio de Lima Nascimento2
1Programa Multi-Institucional de Pós-Graduacão em Biotecnologia, Universidade Federal do Amazonas, Manaus, AM 69077-000, Brazil.
ACS omega
|March 16, 2026
概括
这项研究将银酸盐 (AgP) 合成到Analcime和Pitiglianoite的地质石上,从而创造出新的混合材料. 这些材料在降解RhB染料方面表现出高效率,并对细菌和真菌表现出显著的抗菌活性.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 光催化作用的光催化
- 抗菌剂 抗菌剂 抗菌剂
背景情况:
- 焦岩石,特别是Analcime和Pitiglianoite,以其结构性质和潜在的应用而闻名.
- 银酸盐 (AgP) 具有有趣的光学和抗菌性质.
- 开发高效的光催化剂和抗菌剂对于环境和健康应用至关重要.
研究的目的:
- 合成和表征由银酸盐组成的新型混合材料,其支持在和皮蒂利亚诺伊特热岩的混合物上.
- 评估这些混合材料在可见光下降解Rhodamine B (RhB) 染料的光催化性能.
- 评估合成材料对各种细菌和真菌菌株的抗菌活性.
主要方法:
- 合成混合材料的不同百分比的银酸盐 (AgP) 支持在一个地酸盐混合物 (ZLT).
- 使用X射线衍射 (XRD) 和瑞特维尔德精细化进行结构性表征.
- 振动光谱 (拉曼和IR) 用于识别功能组.
- 通过UV-Vis光谱测量确定能量频段间隙 (E_gap).
- 在LED模拟可见光下使用RhB染料进行光催化降解实验.
- 抗微生物活性测试以确定最小抑制度 (MIC).
主要成果:
- 证实ZLT的支持是71.02%的Analcime和28.98%的Pitiglianoite的混合物.
- 混合材料显示能量频段间隙 (E_gap) 从3.65 eV (ZLT) 减少到2.35 eV (AgP_ZLT_95),使可见光吸收.
- AgP_ZLT_95样本实现了97.07%的RhB染料变色,显示出卓越的光催化效率 (比光解效率高1391.5倍).
- 石作为牺牲材料,防止银酸盐的光腐蚀.
- 混合材料表现出显著的抗菌活性,MIC值为细菌的0.01562 mg mL-1和真菌的0.03125 mg mL-1.
结论:
- 合成的AgP/ZLT混合材料是有效的可见光光催化剂,用于染料降解.
- 这些材料具有强大的抗微生物特性,归因于ROS生成和银离子活性.
- 泽奥利特成分增强了酸银的稳定性,使得混合材料对环境和生物医学应用具有前景.
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