摘要
以抗坏血酸为还原剂、燃烧剂,硝酸铜为氧化剂,燃烧法快速合成铜的氧化物.通过改变燃烧剂的用量制备氧化铜、氧化铜与氧化亚铜的复合氧化物和氧化亚铜.对所制样品进行XRD、电镜表征.改变燃烧剂与硝酸铜的摩尔比制备出铜的不同氧化物,其形貌也各不相同.以氧化铜与氧化亚铜的复合氧化物为催化剂,甲基蓝溶液为污染物进行光催化实验,同时对光催化条件进行考察:pH值、催化剂用量、双氧水用量、时间等条件对光催化的影响,得出氧化铜与氧化亚铜的复合氧化物的光催化条件为:pH=7,催化剂用量为0.6 g/L,时间为90 min.
Taken ascorbic acid as a fuel and a reducing agent and copper nitrate as an oxidant,The copper oxides were rapidly synthesized by combustion.The copper oxide,cuprous oxide composites with copper oxide and cuprous oxide were prepared by changing dose of fuel.The sampls were characterized by XRD and SEM.The different morphologies oxides of copper were also obtained by changing molar ratio of fuel agent and copper nitrate.Taken the cuprous oxide composites with copper oxide as a catalyst and methylene blue solution as a pollutant.The photo-catalytic experiments were carried out.Effects of catalyst amount,dosage of H2O2,pH,time,recycling time on photo-catalysis were studied.The photocatalytic conditions were found: pH is 7,catalyst amount is 0.6 g /L,catalyst time is 90 min.
出处
《材料与冶金学报》
CAS
北大核心
2013年第4期265-270,共6页
Journal of Materials and Metallurgy
基金
国家青年基金21003069
关键词
燃烧法
光催化
铜的氧化物
combustion
photocatalysis
copper oxide
