TiO2-Bi2WO6/Zn(CH3COO)2-ACF复合材料吸附-脱附耦合光催化降解烷烃能效探究

石油炼制与化工 ›› 2024, Vol. 55 ›› Issue (5): 104-112.

TiO₂-Bi₂WO₆/Zn(CH₃COO)₂-ACF复合材料吸附-脱附耦合光催化降解烷烃能效探究

王亚迪¹,杜斐然¹,毕玉玺¹,孙恩呈^1,2,纪国洋¹,刘芳¹,王永强¹

1. 中国石油大学（华东）化学化工学院
2. 中国石化胜利油田分公司技术检测中心

收稿日期:2023-06-25 修回日期:2024-01-16 出版日期:2024-05-12 发布日期:2024-05-06
通讯作者: 刘芳 E-mail:Liufangfw@upc.edu.cn
基金资助:
国家科技重大专项子项目;中国石油安全与环保重点技术研究与推广项目

STUDY ON THE ENERGY EFFICIENCY OF PHOTOCATALYTIC DEGRADATION OF ALKANES BY COUPLING ADSORPTION-DESORPTION OF TiO₂-Bi₂WO₆/Zn(CH₃COO)₂-ACF COMPOSITE

Received:2023-06-25 Revised:2024-01-16 Online:2024-05-12 Published:2024-05-06
Contact: Fang Liu E-mail:Liufangfw@upc.edu.cn
Supported by:
Sub project of National Science and Technology major project;CNPC safety and environmental protection key technology research and promotion project

摘要/Abstract

摘要： 采用水热和浸渍溶胶-凝胶法制备了TiO₂-Bi₂WO₆/Zn(CH₃COO)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/m³，流量为1.2 m³/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。

关键词: 丙烷, 复合材料, 吸附-脱附耦合, 光催化, 三级反应器

Abstract: TiO₂-Bi₂WO₆/Zn(CH₃COO)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/m³, the flow rate was 1.2 m³/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.

Key words: propane, composite, coupled adsorption-desorption, photocatalysis, tertiary reactor

王亚迪杜斐然毕玉玺孙恩呈纪国洋刘芳王永强. TiO₂-Bi₂WO₆/Zn(CH₃COO)₂-ACF复合材料吸附-脱附耦合光催化降解烷烃能效探究[J]. 石油炼制与化工, 2024, 55(5): 104-112.

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TiO₂-Bi₂WO₆/Zn(CH₃COO)₂-ACF复合材料吸附-脱附耦合光催化降解烷烃能效探究

STUDY ON THE ENERGY EFFICIENCY OF PHOTOCATALYTIC DEGRADATION OF ALKANES BY COUPLING ADSORPTION-DESORPTION OF TiO₂-Bi₂WO₆/Zn(CH₃COO)₂-ACF COMPOSITE

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