Bi2O2CO3/β-Bi2O3用于可见光催化协同光芬顿降解RhB的性能研究  

Study on the Photocatalysis Performance of Bi2O2 CO3/β-Bi2O3 in Synergy with Photo-Fenton for Degradation of RhB under Visible Light

作　　者：马珑珑 杨志 MA Long-long;YANG Zhi(Department of Chemistry,Changzhi University,Shanxi Changzhi 046000,China)

机构地区：[1]长治学院化学系,山西长治046000

出　　处：《广州化工》2020年第12期50-54,57,共6页GuangZhou Chemical Industry

基　　金：山西省高等学校科技创新计划科研项目(2019L0912、2019L0909)。

摘　　要：采用非常简单的低温液相沉淀法,并通过控制退火温度和时间成功合成了Bi2 O2 CO3/β-Bi2 O3纳米异质结构。通过SEM和XRD分析对材料的形貌及晶型转变进行了分析。我们对不同阶段样品进行了可见光催化协同光芬顿降解罗丹明B的性能研究,在可见光催化的同时加入了1 mL 30%双氧水,发现当退火温度为330℃,退火时间为5 h时得到的样品性能最好,并进一步发现其降级速率比纯光催化快9.24倍,比不加光只加双氧水时的降解速率快28倍之多。Bi2O2CO3/β-Bi2O3 heterostructure was successfully synthesized by using a very simple low temperature liquid phase precipitation method,followed with a annealing treatment.SEM and XRD analysis showed that the annealing temperature and time had a huge effect on the morphology,composition and crystalline phase of the sample.Finally,Rhodamine B(RhB)degradation test showed that the sample with the annealing temperature of 330℃and annealing time of 5 h performed the best.Compared with pure visible-light-induced photocatalysis and pure photo-Fenton catalysis,the Bi2O2CO3/β-Bi2O3 heterostructure photocatalysis synergy with photo-Fenton had a much higher performance that the degradation rate can arise 9.24 times and 28 times higher,respectively.

关 键 词：Bi2O2CO3/β-Bi2 O3异质结 光催化 光芬顿 罗丹明B 

分 类 号：O643.36[理学—物理化学]