摘要
以硝酸锌为氧化剂,抗坏血酸为还原剂和燃烧剂,采用燃烧法快速制备乳白色棒状纳米氧化锌。用XRD,IR,UV,SEM等技术手段进行了表征。以罗丹明B为目标降解物,考察了不同样品、光照时间、催化剂用量、双氧水加入量、pH值、离心机转数对罗丹明B催化效果的影响。最佳的光催化条件为:硝酸锌与抗坏血酸摩尔比为1∶3、催化剂用量为0.4g/50L、双氧水用量为0.2mL/50mL、pH为8、转速为2500r/min,在150min内罗丹明B褪为无色。
Zinc nitrate as the oxidant,ascorbic acid as reducing agent and combustion agent,milky and rod-like zinc oxide rapid synthesized by combustion method.The sample was characterized by XRD,IR,UV,SEM.The Rhodamine B acted as target of degradation,the experiment inspected various sample,illumination time,dosage of zinc oxide,dosage of H2O2,pH value and rotation speed of centrifuge impact on photocatalytic degradation of Rhodamine B.The optimal experiment conditions： zinc nitrate： ascorbic acid is 1∶3,ZnO of 0.4g/50mL,H2O2 of 0.2mL/50mL,pH value 8,rotating at 2500r/min,Rhodamine B faded to colorless in 150min.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2012年第11期42-46,51,共6页
Journal of Materials Engineering
关键词
氧化锌
燃烧法
光催化
棒状
ZnO
combustion method
photocatalytic
rod-like
