纳米复合材料
光催化
材料科学
环境友好型
纳米材料
石墨烯
拉曼光谱
氧化物
降级(电信)
亚硝酸盐
复合数
化学工程
纳米技术
核化学
催化作用
化学
有机化学
复合材料
冶金
硝酸盐
工程类
物理
光学
生物
电信
计算机科学
生态学
作者
P.C. Nethravathi,M. Manjula,Devaraja Sannaningaiah,M. Sakar,D. Suresh
标识
DOI:10.1016/j.jphotochem.2022.114295
摘要
The current studies demonstrate the preparation of Bi2O3, Ag-Bi2O3, Ag-Bi2O3-rGO nanocomposite using a clear and concise, environmentally sustainable, low-cost green combustion method employing citrus limon as fuel. The synthesised materials were characterised through XRD, UV-DRS, FT-IR, TGA, TEM, SEM and Raman studies. The synthesised Ag-Bi2O3-rGO composite exhibited much improved photocatalytic H2 evolution activity (432.7 μmolg-1h−1) which is 5.5 times greater than bare-Bi2O3 (78.6 μmolg-1h−1) and 4.2 times greater than Ag-Bi2O3 (101.2 μmolg-1h−1) NPs. Further, Bi2O3, Ag-Bi2O3 and Ag-Bi2O3-rGO composite degraded the MB dye by 63.96, 74.9 and 100 % respectively in 90 min. Ag-Bi2O3-rGO exhibited superior electrochemical nitrite sensing property (with the LOD of 19.792 μM). Ag-Bi2O3-rGO nanocomposite exhibited potential antiradical property with IC50 of 900 μg/mL Ag-Bi2O3-rGO was found to have potent direct haemolytic, anticoagulant, antiplatelet and antibacterial activities. This study illustrates a simple, environmental friendly green synthetic technique for large-scale synthesis of multifunctional Ag-Bi2O3-rGO nanocomposite.
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