Fe2O3/RGO nanocomposite photocatalyst: Effective degradation of 4-Nitrophenol
Fe2O3/RGO nanocomposite photocatalyst: Effective degradation of 4-Nitrophenol
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DOI：
10.1016/j.physb.2018.10.033
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发表时间：
2019-01-15
影响因子：
2.8
通讯作者：
Basavaiah, K.
中科院分区：
文献类型：
--
作者：
Mohan, B. Sathish;Ravi, K.;Basavaiah, K.
采用简单、绿色的水热法合成了Fe 2 O3/RGO纳米复合材料（NC）。采用XRD、FESEM、EDS、TGA、FTIR和UV-DRS等分析手段研究了纳米碳的结构、形貌和热稳定性，并以对硝基苯酚（4-NP）为模型有机污染物，考察了纳米碳在可见光下的光催化降解性能。研究了pH和H2 O2对Fe 2 O3/RGO NC光催化降解4-NP的影响。该NC作为一种良性光催化剂在50 min内完全降解4-NP。我们说明，H2 O2在可见光照射下的光催化降解染料污染物的帮助下，这是通过水热路线制备的复合材料发挥了关键作用。而H_2O_2氧化效率高、成本低、可产生无害的共添加剂，是一种很有前途的氧化剂。此外，H2 O2可以作为电子清除剂并产生羟基自由基。
We synthesized Fe2O3/RGO nanocomposite (NC) via simple and green hydrothermal method. The structure, morphology and thermal stability of prepared NC was studied using XRD, FESEM, EDS, TGA, FTIR and UV-DRS. As-synthesized NC was tested for photocatalytic activity by the degradation of model organic pollutant, 4-Nitrophenol (4-NP) under visible light irradiation. The effect of pH and H2O2 were studied on photocatalytic degradation of 4-NP by Fe2O3/RGO NC. This NC as benign photocatalyst for completely degraded 4-NP in 50 min. We stated that H2O2 played a key role in photocatalytic degradation of dye pollutant under visible light irradiation with the help of composite which was prepared by hydrothermal route. However H2O2 acts as promising oxidant due to its high efficiency, low cost and produce harmless co-additives. Moreover H2O2 can serve as electron scavengers and generates the hydroxyl radicals.