摘要
含有聚乙烯醇(PVA)的废水由于其COD值高、难降解、可生化性差以及较大的表面活性不利于环境水体的复氧,造成严重的水体污染问题。氢化锌铁氧体陶瓷粉具有很好的可见及紫外光波段吸收性能,制备的氢化锌铁氧体光催化剂能够很好的降解聚乙烯醇废水,在通入臭氧和8 W的LED灯照射条件下,在120 min内将500 mg/L(COD值为1105 mg/L)的聚乙烯醇溶液降解达到66.7%。
Wastewater containing polyvinyl alcohol (PVA) has caused serious water pollution problems. The polyvinyl alcohol is bad for thereoxygenation of the environmental water body due to its high COD value, difficulty of degradation, poor biodegradability and large surfaceactivity. Hydrogenated zinc ferrite ceramic powder has good visible-ultraviolet light absorption property. The prepared hydrogenated zincferrite can improve the degradation of polyvinyl alcohol in wastewater as a photocatalyst. With the introduction of ozone and the irradiationby a LED lamp of 8 W, the degradation rate of 500 mg/L PVA (with COD value of 1105 mg/L) reached 66.7% within 120 minutes.
作者
向青云
白洋
杨穆
王捷
严楷
姚文清
曹江利
XIANG Qingyun;BAI Yang;YANG Mu;WANG Jie;YAN Kai;YAO Wenqing;CAO Jiangli(Beijing Key Laboratory for Corrosion, Erosion and Surface Technology, Institute of Advanced Materials and Technology,University of Science and Technology Beijing, Beijing 100083, China;Department of Chemistry, Tsinghua University,Beijing 100084, China)
出处
《陶瓷学报》
CAS
北大核心
2016年第3期289-292,共4页
Journal of Ceramics
基金
中央高校基本科研经费专项资金(FRF-SD-12-027A,FRF-TP-13-047)
新世纪优秀人才支持计划(NCET-12-0778)
关键词
锌铁氧体
氢化
光催化降解
聚乙烯醇
zinc ferrite
hydrogenation
photocatalytic degradation
polyvinyl alcohol
