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Ecofriendly and enhanced photocatalytic degradation of Indigo dye by graphene oxide nanoparticles

机译：石墨烯氧化物纳米粒子的Ecofriendly和增强的光催化降解靛蓝染料

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In the present work, photocatalytic degradation of indigo dye by synthesized graphene oxide (GO) nanomaterials using conventional and improved Hummers method has been reported. In the present research, the emphasis is to explore the photocatalytic degradation of GO, using NaNO_3 (N-GO) and without using NaNO_3 (WN-GO) under the exposure of UV light. WN-GO possesses eco-friendly behaviour as it eliminates the generation of toxic gases (NO_2/N_2O_2) in the atmosphere. Synthesized nanomaterials were characterized using SEM-EDS, XRD, Raman spectroscopy, UV-Vis and FTIR. Indigo dye (C_(16)H_(10)N_2O_2) was identified as a model to investigate the photocatalytic degradation of GO nanoparticles under UV exposure. The absorbance peak of indigo dye with N-GO and WN-GO has been plotted as a function of irradiation time. The progress of the decolourization reaction of dye with catalysts was measured by a change in colour from blue to transparent. Compared to N-GO, WN-GO possesses organic and eco-friendly degradation of indigo dye under UV irradiation. The versatile photocatalytic characteristics of WN-GO possess higher-order degradation rate constant (k) makes it a potential candidate for bioremediation of waste-water treatment. Therefore, the degradation of indigo dye with GO exhibits encouraging solution for treating contaminated water and provides a facile route towards environmental cleanness.
机译：在本作的工作中，已经报道了使用常规和改进的垂湿方法通过合成的石墨烯氧化物（GO）纳米材料的光催化降解靛蓝染料。在本研究中，重点是探讨使用NaNO_3（N-GO）的光催化降解，而不使用UV光的曝光下的纳米_3（WN-GO）。 WN-Go拥有生态友好的行为，因为它消除了大气中的有毒气体（NO_2 / N_2O_2）的产生。合成的纳米材料用SEM-EDS，XRD，拉曼光谱，UV-Vis和FTIR表征。靛蓝染料（C_（16）H_（10）N_2O_2）被鉴定为研究UV暴露下纳米颗粒的光催化降解的模型。用N-Go和Wn-Go的Indigo染料的吸光度峰作为照射时间的函数绘制。染料用催化剂的脱色反应的进展通过从蓝色的颜色变化测量。与N-Go相比，Wn-Go在紫外线照射下具有靛蓝染料的有机和生态友好劣化。 Wn-Go的多功能光催化特性具有高阶降解速率常数（K）使其成为废水处理的生物修复的潜在候选者。因此，靛蓝染料与去的降解表现出令人鼓舞的污染水的溶液，并提供朝向环境清洁的便利途径。

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