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BiVO-聚乙烯醇复合物:一种新的废水处理方法,具有抗微生物有效性

Rabia Shahzad¹, Sabah Kausar¹, Tahir Iqbal¹

¹Department of Physics, Faculty of Science, University of Gujrat, Hafiz Hayat Campus Gujrat 50700 Pakistan sabahshazadii1478@gmail.com tahir.awan@uog.edu.pk.

|August 6, 2025

概括

这项研究合成了慕瓦纳酸/聚乙烯醇 (BiVO4/PVA) 纳米复合物,用于有效的光催化降解活性黄色染料. 优化的BiVO4/PVA (1:3) 催化剂显示了91.3%的染料去除和显著的抗菌活性.

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:

开发高效的光催化剂对于应对水污染至关重要.
乙瓦纳酸盐 (BiVO4) 和聚乙醇 (PVA) 是环境修复的有希望的材料.
纳米复合材料的策略可以提高光催化材料的性能.

研究的目的:

为了合成和表征BiVO4/PVA纳米复合材料,以改善反应性黄色染料的光催化降解.
研究合成材料的光学和形态特性.
评估BiVO4/PVA纳米复合材料的光催化效率,稳定性和抗菌活性.

主要方法:

合成纯BiVO4,PVA和BiVO4/PVA (1:3) 纳米复合材料的共同沉技术.
使用X射线衍射 (XRD),扫描电子显微镜 (SEM),能量散射X射线光谱 (EDX),里埃变换红外光谱 (FTIR),光发光 (PL) 和UV-Vis光谱进行了表征.
使用活性黄色染料的光催化降解实验和对大肠杆菌和金黄色葡萄球菌的抗菌活性测试.

主要成果:

这种BiVO4/PVA (1:3) 纳米复合材料的最佳带间距为2.03 eV.
在140分钟内实现了91.3%的活性黄色染料降解.
该纳米复合材料在七个催化周期中表现出稳定性,并显示出对大肠杆菌和黄金色杆菌的补充抗菌疗效.

结论:

BiVO4/PVA (1:3) 纳米复合材料通过减少电子/孔重组和减少带间隙,显著增强光催化剂染料降解.
合成材料显示出出色的稳定性和废水处理的潜力.
该纳米复合材料还表现出有希望的抗菌性质,这表明它在环境应用中具有双重功能.

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