A Simple Preparation Method of Graphene and TiO 2 Loaded Activated Carbon Fiber and Its Application for Indoor Formaldehyde Degradation

Separations

article

Fang Liu¹  Xuezhi Gao¹  Man Peng³ 

[1]Beijing Key Laboratory of Heating, Gas Supply, Ventilation and Air Conditioning, Beijing University of Civil Engineering and Architecture

[2]Collaborative Innovation Center of Energy Conservation & Emission Reduction and Sustainable Urban-Rural Development in Beijing, Beijing University of Civil Engineering and Architecture

[3]S.Y. Technology, Engineering & Construction Co., Ltd.

关键词: indoor air;    formaldehyde;    TiO2/ACF;    graphene;    photocatalysis;    purification technology;   

DOI  :  10.3390/separations9020031

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

Formaldehyde has a significant impact on human health. This study used a simple dipping method to load graphene-titanium dioxide (GR-TiO2) on activated carbon fibers (ACFs). The microstructure of GR-TiO2/ACF hybrid material was observed by SEM, combined with XRD and BET analysis. The result showed that the GR-TiO2/ACF hybrid material had a specific surface area of 893.08 m2/g and average pore size of 2.35 nm. The formaldehyde degradation efficiency of the prepared material was tested under different conditions, such as ultraviolet (UV) radiation, air supply volume, relative humidity, initial mass concentration. The results showed that the UV radiation intensity, airflow and the initial mass concentration were positively correlated with the formaldehyde removal rate, and the relative humidity was negatively correlated with the formaldehyde removal rate. The GR-TiO2/ACF hybrid material had a maximum formaldehyde removal rate of 85.54% within 120 min.

【 授权许可】

CC BY