Zn、Fe二元修饰碳基催化剂及其三维电极催化分解甲基橙模拟废水

以椰壳活性碳作为碳基催化剂,通过电催化氧化,在三维电极反应器中对甲基橙模拟废水进行处理,通过脱色率评价有机物分解效果。对催化剂进行了优选,研究了工作电压、空气通入量、处理时间、废水pH值等参数对甲基橙分解的影响。实验结果表明Zn、Fe二元修饰的碳基催化剂具有最好的催化活性,在电压为20V、空气通入量为0.2L/min、pH值为5、处理时间为60min时,脱色率最高达到了97.7%。

铬、铁二元修饰的高效碳基催化剂及其三维电极催化降解甲基橙模拟废水

以过渡金属修饰的活性炭作为催化剂,在三维电极反应器中,通过电催化氧化对甲基橙模拟废水进行降解处理,以废水的脱色率对有机物分解效果进行评价。实验结果表明,催化剂的掺杂修饰、反应器的工作电压、通入空气的流量、水处理时间、废水的pH值等参数对甲基橙分解均有影响。其中铬、铁二元修饰的活性炭具有最优的催化性能,并且在工作电压15V、空气流量0.2 L/min、pH值为5、处理时间为30 min时,脱色率可达到94.31%。

Comprehensive study of efficient dye-sensitized solar cells based on the binary ionic liquid electrolyte by modifying with additives and iodine

The photovoltaic performance of dye-sensitized solar cells （DSSCs） is enhanced by modifying the binary room tem- perature ionic liquid （RTIL） electrolyte with additives and iodine. The average photoelectric conversion efficiency （PCE） of 6.39% is achieved. Through electrochemical impedance spectroscopy （EIS）, cyclic voltammetry scans and incident photon-to-current conversion efficiency （1PCE） data, the working principles are analyzed. The enhancement is mainly attributed to the improvement of short circuit current which is caused by the reduction of overall internal resistance of the devices. Durability tests are measured at room temperature, and the long-term stability performance can be maintained.