Preparation of g-C3N4/MXene/Ag3PO4 Heterostructure and Catalytic Property
WANG Zongqian1,2, SHEN Jiakun1, LI Yu1, LI Changlong1,2, WANG Peng1,2,*
1 School of Textile and Garment, Anhui Polytechnic University, Wuhu 241000, Anhui, China 2 Anhui Engineering and Technology Research Center of Textile, Wuhu 241000, Anhui, China
Abstract: In order to improve the photocatalytic performance of g-C3N4, g-C3N4/MXene/Ag3PO4 heterojunction photocatalyst were prepared via a self-assembly procedure with the help of TEM, FTIR, XRD, XPS, and DRS. And then the effects of catalyst dosage, pH value and initial dye concentration on the catalytic performance, and catalytic mechanism were investigated by the experiment of photocatalytic oxidative degradation of Reactive Red 195 being carried out with g-C3N4/MXene/Ag3PO4 under visible light illumination. The results showed that the g-C3N4/MXene/Ag3PO4 catalyst with sheet structure could be successfully prepared. The catalytic activity of g-C3N4 significantly was improved due to heterojunction. The degradation rate of Reactive Red 195 increased from 74.92% to 93.64% in the treatment of 60 min reaction time. Reduced the initial dye concentration and increased the amount of catalyst could accelerate the oxidative degradation of Reactive Red 195. Additionally, under acidic and alkaline conditions, the catalytic oxidation performance of the catalyst was higher than that under neutral conditions. After 5 cycles of g-C3N4/MXene/Ag3PO4, the degradation rate of Reactive Red 195 remained high (80.11%), and the structure of the catalyst did not change before and after usage. This probably due to the azo bond and aromatic ring structure of Reactive Red 195 were destroyed, and ·O2- participated in the reaction as the main active substance, during the reaction.
通讯作者:
* 王鹏,2013年6月、2019年6月分别于河北科技大学和天津工业大学获得纺织科学与工程专业学士和博士学位,2020年1月至今在安徽工程大学纺织服装学院担任教学研究人员。研究领域包括纺织化学与生态学、环境催化与净化材料、纺织工业废水处理技术以及室内空气污染控制技术等。发表论文20余篇,包括Cellulose、Journal of Cleaner Production、Coloration Technology、Industrial Crops and Products等。wangpeng@ahpu.edu.cn
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2023, Vol. 37 
