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A study on potential electrolysis of wastewater with pure graphene electrodes
정미화,박수진 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.1
Textile wastewater includes a large variety of dyes and chemicals that make the environmental challenge for textile industry not only as liquid waste but also in its chemical composition. Conventional biological treatment is the most efficient and economic way of reducing the environmental impact of the industrial effluents containing organic pollutants, but this technique is time consuming and cannot be employed for textile effluent, as textile effluent is recalcitrant to biodegradation. On the other hand, the physical adsorption is expensive and difficult for adsorbent regeneration. Further, biological and chemical methods generate considerable quantity of sludge, which itself requires treatment. As environmental regulations become stringent, new and novel processes for efficient treatment of various kinds of wastewater at relatively low operating cost are needed. In this context, this study was pure graphene electrode analyzed the possibility of decomposing the artificial dye wastewater.
Electrochemical performance of Ag particles-decorated graphene composites
정미화,박수진 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.1
In this work we identified the electrochemical performance after decorating Ag particle on graphene surface. At first, we manufactured graphene oxide using Hummers way. Then, we are producing a paper of graphene oxide by mixing potassium nitrate aqueous solution and graphene oxide. And then, we manufactured graphene through chemical reduction on that graphene oxide. That graphene film introduced Ag particle appeared high electrochemical performance than graphene. To find electrochemical performance, we manufactured half cell of graphene decorating Ag particle which we made and conducted electrochemical performance test such as charge-discharge test, cyclic voltammetry and specific capacitance. As a result, we could find the superiority over twice on electrochemical performance when we decorate Ag particle not graphene.
Electrolysis characteristics system of graphene/TiO2 ectrodestreatment of dye wastewater
정미화,박수진 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.0
Coagulation and flocculation are traditional methods for the treatment of polluted water. Electrolysis presents a robust novel and innovative alternative in which a sacrificial metal anode doses water electrochemically. This has the major advantage of providing active cations required for coagulation, without increasing the salinity of the water. However, diluted textile effluent was Recalcitrant material. For this reason, The degradation of diluted textile effluent was studied by electrochemical technique. In this study graphene/TiO2 electrode analyzed the possibility of decomposing the artificial dye wastewater.