纳米铜复合材料催化还原染料废水的研究

以铜的有机金属框架为铜源前驱物,酚醛树脂为碳源,合成了多孔碳层支撑的Cu/Cu2O/C非贵金属复合材料.负载的Cu/Cu2O颗粒粒径在40nm左右,多孔碳层的高孔隙结构有利于Cu/Cu2O颗粒与目标物充分接触.将Cu/Cu2O/C作为催化剂用于水中多种染料类污染物(邻硝基苯、亚甲基蓝和罗丹明B)的催化还原反应中,材料重复利用5次后,目标物的降解率仍在99%以上,催化剂表现出了良好的催化活性和稳定性.

Study on catalytic reduction of dye wastewater by copper nanocomposite

A facile, low cost and novel method is proposed to fabricate porous carbon supported non-noble metal copper composite architecture (Cu/Cu2O/C) with an effective Cu/Cu2O NPs size of ~40nm by using Cu3(BTC)2 as copper precursor and phenol formaldehyde resin as carbon precursor. The porous carbon substrates can provide high surface-to-volume ratio for the Cu/Cu2O NPs contact with the target. The Cu/Cu2O/C composite shows high catalytic performance in the reduction of nitrobenzene, methylene blue and rhodamine B. Moreover, the synthesized catalyst can be reused for at least five cycles with a high target degrading efficiency of 99% due to its good stability.