Abstract

CNFs-Bi₂WO₆ nanocomposite was synthesized by hydrothermal method. The physico-chemical characterization of samples was done by XRD, SEM-EDX, UV-DRS, and PL spectra. CNFs-Bi₂WO₆ nanocomposite has shown better photodegradation efficiency than pristine Bi₂WO₆ for Rhodamine B dye under visible light irradiation. The addition of Bi₂WO₆ to pure carbon nanofibers (CNFs) facilitated absorption of light as well as assisted in separation of electron-hole pairs which ultimately lead to superior photodegradation efficiency. The CNFs-Bi₂WO₆ nanocomposite displayed excellent photocatalytic efficiency under visible light for dye degradation, owing to the synergistic effect of CNFs and Bi₂WO₆ with excellent charge separation characteristics and suitable band gap energy. The CNFs-Bi₂WO₆ nanocomposite was also screened for antimicrobial potential against two bacterial strains and one pathogenic fungal strain Candida albicans. The fabricated CNFs demonstrated antimicrobial activity, which was fortified due to inclusion of Bi₂WO₆ nanoflakes_.

摘要

采用水热法合成了CNFs-Bi ₂ WO _{6纳米复合材料。}通过XRD、SEM-EDX、UV-DRS和PL光谱对样品进行物理化学表征。CNFs-Bi ₂ WO ₆纳米复合材料在可见光照射下对罗丹明B染料显示出比原始Bi ₂ WO _{6更好的光降解效率。}将Bi ₂ WO ₆添加到纯碳纳米纤维（CNF）中促进了光的吸收，并有助于电子-空穴对的分离，最终导致优异的光降解效率。CNFs-Bi ₂ WO _{6由于CNFs和Bi 2} WO ₆的协同作用，纳米复合材料在可见光下对染料降解表现出优异的光催化效率，具有优异的电荷分离特性和合适的带隙能量。还筛选了CNFs-Bi ₂ WO _{6纳米复合材料对两种细菌菌株和一种致病性真菌菌株}白色念珠菌的抗菌潜力。制造的CNFs表现出抗微生物活性，由于包含Bi ₂ WO ₆纳米薄片而得到强化_。