In our study’s scenario, flexible films were fabricated from TEMPO-oxidized cellulose nanofibers and silver selenide (CNF/Ag₂Se) as efficient membranes for the degradation of methylene blue (MB). Different concentrations of Ag₂Se particles were in situ prepared in the presence of CNF. The in-situ synthesis of Ag₂Se nanoparticles in the presence of CNF was reported as efficient technique for the formation of submicrosize Ag₂Se particles with a narrow size distribution and homogeneous dispersion onto CNF. TEM analysis revealed that the nanofibers had uniform width and diameter, while XRD demonstrated single-phase orthorhombic β-Ag₂Se formation. 3D-FESEM showed tiny root measurer values of 28, 30, and 32.56 nm in polymeric films with 2.5, 5, and 10% Ag₂Se-filled CNF. Polymeric films had visible-driven-light photocatalytic activity because the band gap fell from 4.61 eV (UV area) to 2.71 eV (visible region). The composite’s photocatalytic performance was assessed by MB degradation. 10% of CNF/Ag₂Se demonstrated maximal photocatalytic activity under simulated sunlight for 60 min, pH 9, and 3 g/L composite weight. The factorial design statistical analysis showed that MB dye photodegradation is mostly affected by irradiation time and dye concentration. Environmental, social, and economic factors are all considered, making this study suitable for implementing photocatalysis to large-scale water treatment systems, which is a key component of sustainability.

_{在我们的研究场景中，柔性薄膜由 TEMPO 氧化纤维素纳米纤维和硒化银 (CNF/Ag 2} Se)制成，作为降解亚甲基蓝 (MB) 的有效膜。在 CNF 存在下原位制备不同浓度的 Ag ₂ Se 颗粒。据报道，在 CNF 存在下原位合成 Ag ₂ Se 纳米颗粒是形成亚微米级 Ag ₂ Se 颗粒的有效技术，该颗粒具有窄的尺寸分布和均匀分散在 CNF 上。 TEM分析显示纳米纤维具有均匀的宽度和直径，而XRD则显示单相斜方晶系β-Ag ₂ Se的形成。 3D-FESEM 显示在含有 2.5%、5% 和 10% Ag ₂ Se 填充的 CNF 的聚合物薄膜中具有 28、30 和 32.56 nm 的微小根测量值。聚合物薄膜具有可见光驱动光催化活性，因为带隙从 4.61 eV（紫外区）降至 2.71 eV（可见区）。通过MB降解评估复合材料的光催化性能。 10%的CNF/Ag ₂ Se在模拟阳光60分钟、pH 9和3 g/L复合重量下表现​​出最大的光催化活性。因子设计统计分析表明MB染料的光降解主要受照射时间和染料浓度的影响。环境、社会和经济因素都被考虑在内，使得这项研究适合在大型水处理系统中实施光催化，这是可持续发展的关键组成部分。