石墨烯β-环糊精纳米复合材料去除废水染料的合成

Prof. Dr. Ajay Singh, N. Joshi
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引用次数: 0

摘要

氧化石墨烯;采用Hummer的方法合成纳米复合材料。合成的新型氧化石墨烯- β -环糊精(GO-CD)复合材料作为吸附剂,用于吸附和消除水溶液中溶剂相中的有害内分泌干扰化合物,如亚甲基蓝。采用间歇式吸附技术,在不同的接触时间、pH和温度条件下从水溶液中分离亚甲基蓝。较低的溶液pH值(3 ~ 5)有利于活性染料在氧化石墨烯-环糊精复合材料上的吸附。内分泌干扰化合物是高毒性物质,不能通过常规方法从处理过的废水中去除。优化的有效参数为:接触时间为20 min,吸附剂用量为20mg, pH值为7.5,初始浓度为0.00001。因此,所研制的吸附剂可以有效地用于有害杂质的快速吸附和去除。结果表明,氧化石墨烯- β -环糊精复合材料显示废水的颜色减少了60-80%,并且显示出其他污染参数的减少。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Synthesis of Graphene β-Cyclodextrin Nano-Composite for Removal of Dyes from Waste Water
Graphene oxide & its nano composite was synthesized using the Hummer’s method. Synthesized novel graphene oxide-beta-cyclodextrin (GO-CD) composites is applied as adsorbent for adsorption and elimination of hazardous endocrine disrupting compounds, such as Methylene Blue from the solvent phase of an aqueous solution. Methylene Blue from aqueous solutions by batch adsorption technique under varying conditions such as contact time, pH and temperature. Lower solution pH (3 to 5) favoured the adsorption of reactive dye onto graphene oxide-beta-cyclodextrin composites. Endocrine disrupting compounds are highly toxic substances that cannot be removed from treated waste water through conventional methods. The optimized values of effective parameters were 20 minute (contact time), 20mg (adsorbent dosage), and 7.5(pH) and 0.00001 (initial concentration) these values were optimized using batch adsorption study. Hence, the developed adsorbent could be efficiently used for rapid adsorption and removal of noxious impurities. The results indicated that graphene oxide-beta-cyclodextrin composites have shown reduction in colour of waste water by 60-80% and also have shown reduction in other polluting parameters.
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