材料科学
纳米复合材料
膜
化学工程
扫描电子显微镜
吸附
水溶液
戊二醛
阳离子聚合
复合数
透射电子显微镜
复合材料
纳米技术
高分子化学
色谱法
有机化学
化学
生物化学
工程类
作者
Sai Kumar Arla,Sreenivasa Kumar Godlaveeti,Siva Sankar Sana,Ahmad Jwuiyad,Nagasatya sai Konidena,Vijaya Kumar Naidu Boya
标识
DOI:10.1149/2162-8777/ad105c
摘要
In this study, we synthesized a composite membrane of molecularly imprinted TiO 2 nanotubes (TNTs) embedded in a Sodium Alginate (SA) supporting matrix. The TNTs were synthesized using a simple hydrothermal technique, resulting in an average length of 20 nm. To improve their recyclability and photoactivity, these nanotubes were immobilized within the SA membrane. The casting solution was applied onto a glass plate using a glass rod to control the film thickness. Subsequently, the TNTs/SA nanocomposite membrane was obtained by drying at room temperature and crosslinking with glutaraldehyde and HCl to improve mechanical strength, chemical resistance and stability of the membrane. The as-prepared TNTs and composite films were characterized using various methods, including X-ray diffraction (XRD), Dynamic light scattering (DLS), Scanning electron microscopy (SEM), and Transmission electron spectroscopy (TEM). Scanning electron microscopy revealed the porous nature of the prepared TNTs/SA composite membrane. Further, these composite membranes were utilized for the adsorption of the cationic dye methylene blue (MB) from aqueous solutions. A 50 mg TNTs/SA nanocomposite membrane achieved an approximate degradation ratio of 85% for a 10 ppm MB concentration under room conditions within 180 min. Additionally, the effects of adsorbent dosage, dye concentration, and temperature were also investigated.
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