金红石-锐钛矿混合TiO_(2)纳米网的合成及其光电联合催化降解油田用表面活性剂  

Synthesis of rutile anatase mixed TiO_(2) nanomesh and its application in photocatalytic degradation of surfactants

作　　者：黄秉轩 吴迪 赵怡 陈梦梦 宁延滨 侯军伟 Huang Bingxuan;Wu Di;Zhao Yi;Chen Mengmeng;Ning Yanbin;Hou Junwei(State Key Laboratory of Heavy Oil Processing,China University of Petroleum-Beijing at Karamay,Karamy Xinjiang 834000,China)

机构地区：[1]中国石油大学(北京)克拉玛依校区重质油国家重点实验室,新疆克拉玛依834000

出　　处：《石油化工》2021年第5期420-424,共5页Petrochemical Technology

基　　金：新疆维吾尔自治区“天山青年”项目(2018Q031);新疆维吾尔自治区教育厅青年基金(XJEDU2018Y060);克拉玛依市科技局创新项目(2020CXRC0003)。

摘　　要：使用阳极氧化和煅烧技术合成了金红石-锐钛矿混合晶型TiO_(2)纳米网阵列,采用SEM,XRD,XPS,UV和电化学工作站系统研究了阳极氧化时间对TiO_(2)纳米网形态、组成和结构的影响,考察了TiO_(2)纳米网对油田用表面活性剂烷醇酰胺的降解效果。实验结果表明,随阳极氧化时间的延长,锐钛矿型TiO_(2)含量增加,TiO_(2)纳米管孔径增大,吸收光谱向可见光转移,光电流增加。TiO_(2)纳米网对油田用表面活性剂烷醇酰胺具有很好的降解效果,用它作为光电联合催化电极时,120 min对烷醇酰胺的降解率达92%。Rutile anatase mixed crystal TiO_(2) nanoarrays nets were synthesized by anodic oxidation and calcination.The effects of anodizing time on the morphology,composition,structure and photoelectrocatalytic properties of the products were studied by SEM,XRD,XPS,UV and electrochemical workstation system.The results show that with the increase of anodizing time,the content of anatase TiO_(2) increases,the pore size of TiO_(2) nanotubes increases,the absorption spectrum shifts to visible light,and the photocurrent increases.The degradation rate of alkanolamide can reach 92% in 120 min when the sample is used as a photoelectric combined catalytic electrode.

关 键 词：TiO_(2) 金红石 锐钛矿 光电催化 表面活性剂降解 

分 类 号：TQ426[化学工程]