摘要
采用水热和浸渍溶胶-凝胶法制备了TiO_(2)-Bi_(2)WO_(6) Zn(CH_(3)COO)_(2)-ACF复合材料(记为TBZA),通过扫描电子显微镜、透射电子显微镜、X射线衍射、氮气吸附-脱附、紫外漫反射、光电流响应等手段表征其形貌和结构特性,并探究其在吸附-脱附耦合光催化反应器中对丙烷的降解性能。结果表明:制备的材料具有良好的光生电子-空穴分离率;在三级串联吸附-脱附耦合光催化反应器中,丙烷质量浓度为1000 mg/m^(3),流量为1.2 m^(3)/h,湿度为33%,温度为34℃,TBZA复合材料对丙烷吸附耦合光催化处理效率达到85.8%,相比于单一反应器提升了48.9百分点;在紫外灯照射下,脱附温度为65℃时,TBZA复合材料的再生效果达到最佳,再生后对丙烷的总体转化率下降不足2%,表明TBZA材料作为催化剂具有良好的循环再生性能。
TiO_(2)-Bi_(2)WO_(6) Zn(CH_(3)COO)_(2)-ACF(TBZA)composite was prepared by hydrothermal and impregnation-sol-gel method,its morphology and structure of the composite were characterized by SEM,TEM,XRD,BET,UV-vis and I-T photocurrent response,and the degradation of propane in the adsorption-desorption coupling photocatalytic reactor was investigated.The results showed that the prepared materials had good photoelectron-hole separation rate.In the three-stage series adsorption-desorption coupled photocatalytic reactor,the propane mass concentration was 1000 mg/m^(3),the flow rate was 1.2m^(3)/h,the humidity was 33%,and the temperature was 34℃.The photocatalytic efficiency of TBZA composite was 85.8%,which was 48.9 percentage points higher than that of a single reactor,and the overall propane conversion decreased by less than 2% when the desorption temperature was 65℃ under ultraviolet irradiation,indicating that TBZA material had good performance as catalyst for recycling.
作者
王亚迪
杜斐然
毕玉玺
孙恩呈
纪国洋
刘芳
王永强
Wang Yadi;Du Feiran;Bi Yuxi;Sun Encheng;Ji Guoyang;Liu Fang;Wang Yongqiang(College of Chemistry and Chemical Engineering,China University of Petroleum,Qingdao,Shandong 266580;SINOPEC Technology Testing Center of Shengli Oilfield Company)
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2024年第5期104-112,共9页
Petroleum Processing and Petrochemicals
基金
中国石油安全与环保重点技术研究与推广项目(2017D-4613)、国家科技重大专项子项目(2016ZX05040-003)。
关键词
丙烷
复合材料
吸附-脱附耦合
光催化
三级反应器
propane
composite
coupled adsorption-desorption
photocatalysis
tertiary reactor
