Zhang Chencheng, Han Pingfang, Lu Xiaoping, Mao Qinghui, Qu Jiangang, Li Ya
Biotechnology and Pharmaceutical Engineering, Nanjing Tech University Nanjing 210009 PR China
College of Textile and Garment, Nantong University Nantong 226019 PR China.
RSC Adv. 2018 Jul 10;8(43):24665-24672. doi: 10.1039/c8ra04659j. eCollection 2018 Jul 2.
Herein, we describe the hydrothermal immobilization of BiVO on activated carbon fibers (ACFs) and characterize the obtained composite by several instrumental techniques, using Reactive Black KN-B (RB5) as a model pollutant for photocatalytic performance evaluation and establishing the experimental conditions yielding maximal photocatalytic activity. The photocatalytic degradation of RB5 is well fitted by a first-order kinetic model, and the good cycling stability and durability of BiVO@ACFs highlight the potential applicability of the proposed composite. The enhanced photocatalytic activity of BiVO@ACFs compared to those of BiVO and ACFs individually was mechanistically rationalized, and the suggested mechanism was verified by ultraviolet-visible spectroscopy, attenuated total reflectance Fourier-transform infrared spectroscopy, and RB5 degradation experiments. Thus, this work contributes to the development of BiVO@ACF composites as effective photocatalysts for environmental remediation applications.
在此，我们描述了BiVO在活性炭纤维（ACFs）上的水热固定化，并通过多种仪器技术对所得复合材料进行表征，以活性黑KN - B（RB5）作为模型污染物评估光催化性能，并确定产生最大光催化活性的实验条件。RB5的光催化降解很好地符合一级动力学模型，BiVO@ACFs良好的循环稳定性和耐久性突出了所提出复合材料的潜在适用性。从机理上解释了BiVO@ACFs与单独的BiVO和ACFs相比增强的光催化活性，并通过紫外可见光谱、衰减全反射傅里叶变换红外光谱和RB5降解实验验证了所提出的机理。因此，这项工作有助于开发BiVO@ACF复合材料作为用于环境修复应用的有效光催化剂。
