摘要
以氧化石墨烯为载体,通过水热法制备了氧化石墨烯-Fe2O3复合材料,并利用X射线衍射、扫描电镜和X射线光电子能谱等手段对其进行了表征;在H2O2-紫外光体系中加入一定量的GO-Fe2O3光催化剂,研究了其光催化氧化脱硝性能。光催化氧化实验结果表明,NO转化率随催化剂投加量、H2O2浓度、溶液温度、氧气浓度等因素的增加而提升,达到一定值后转化率保持不变或转而降低,即在催化剂投加量0.5g/100mL,H2O2浓度0.5mol/L,溶液温度30℃,氧气体积浓度为6%时,氮氧化物转化效率达84.33%。
Graphene oxide has been made by improved Hummers method,then using graphene oxide as a carrier to the hydrothermal preparation of graphene oxide iron oxide composite material（GO-Fe2O3）,by adjusting the additive amount of raw materials,reaction temperature and time conditions changed into the structure and properties of composite materials.Using,X-ray diffraction（XRD）,scanning electron microscopy（SEM）and X-ray photoelectron spectroscopy of the product have been characterized.A certain amount of catalyst in H2O2/UV system was added,the photocatalytic oxidation denitrification performance was studied.The experiment shows that,the conversion rate of NOximproved with the increasing of catalyst dosing quantity,concentration of H2O2,solution temperature,oxygen concentration until they reach a certain value.And then conversion rate remains unchanged or to reduce.The best process parameters：catalyst dosing quantity is 0.5g/100 mL,H2O2concentration 0.5mol/L,solution temperature 30 ℃,oxygen volume concentration is 6%,nitrogen oxide degradation efficiency up to 84.33%.
出处
《金属功能材料》
CAS
2016年第1期32-38,共7页
Metallic Functional Materials
基金
钢铁冶金新技术国家重点实验室开放课题(KF14-09)
关键词
氧化石墨烯
氧化铁
光催化
烟气脱硝
水热法
graphene oxide
iron oxide
photocatalysis
flue gas denitrification
hydrothermal
