Continuous and complete conversion of high concentration p-nitrophenol in a flow-through membrane reactor

Miao, Jianfeng; Lu, Jia; Jiang, Hong; Liu, Yefei; Xing, Weihong; Ke, Xuebin; Chen, Rizhi

Abstract

Here, we report on a green and effective method for the continuous and complete conversion of high concentrations of p-nitrophenol (PNP) using a flow-through membrane reactor and less NaBH4. The catalytic membrane was successfully fabricated by loading Pd nanoparticles onto the surface of a branched TiO2 nanorod-functionalized ceramic membrane. The modification with branched TiO2 nanorods can significantly improve the loading amount of Pd nanoparticles onto ceramic membranes, resulting in enhanced catalytic performance. With 6 mg of Pd, 93 L m−2 hr−1 of flux density and 8.04 cm2 of membrane surface area in the flow-through membrane reactor, PNP at a concentration of 4,000 ppm can be converted to high-value p-aminophenol using less NaBH4 (using a molar ratio of NaBH4:PNP of 9.6) within 24 s at 30°C. More importantly, the conversion can be continuously and stably performed for 240 min.

Citation

Miao, J., Lu, J., Jiang, H., Liu, Y., Xing, W., Ke, X., & Chen, R. (2019). Continuous and complete conversion of high concentration p-nitrophenol in a flow-through membrane reactor. AIChE Journal, 65(9), Article e16692. https://doi.org/10.1002/aic.16692

• Journal Article Type: Article
• Acceptance Date: Jun 4, 2019
• Online Publication Date: Jun 7, 2019
• Publication Date: 2019-09
• Deposit Date: Jul 26, 2019
• Publicly Available Date: Jun 8, 2020
• Journal: AIChE Journal
• Print ISSN: 0001-1541
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 65
• Issue: 9
• Article Number: e16692
• DOI: https://doi.org/10.1002/aic.16692
• Keywords: Branched TiO2 nanorods; Continuous and complete conversion; Flow‐through membrane reactor; p‐nitrophenol; Pd nanoparticles
• Public URL: https://hull-repository.worktribe.com/output/1992857
• Publisher URL: https://aiche.onlinelibrary.wiley.com/doi/full/10.1002/aic.16692
• Additional Information: This is the peer reviewed version of the following article: Miao, J, Lu, J, Jiang, H, et al. Continuous and complete conversion of high concentration p‐nitrophenol in a flow‐through membrane reactor. AIChE J. 2019;e16692, which has been published in final form at https://doi.org/10.1002/aic.16692. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
• Contract Date: Jul 26, 2019