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主 催：中国地区化学工学懇話会
日 時：2024年8月5日（月）１６：００～１７：００
場 所：広島大学工学部 １０５講義室
交 通：山陽本線西条駅下車，バス15 分，大学会館前下車
山陽新幹線東広島駅下車，タクシー10 分
広島バスセンターから直行バス約１時間，大学会館前下車
講 演：Design of Photocatalytic Membrane Reactor for Wastewater Remediation
講 師：Dr. Chechia Hu
Department of Chemical Engineering
National Taiwan University of Science and Technology, Taiwan
講演内容：
Wastewater treatment has been received considerable attention recently. In the present work, MIL-88B(Fe,Co) was prepared and grown on an Al2O3 membrane as a photocatalytic membrane reactor. After cobalt doping, the MIL-88(Fe,Co) exhibited visible-light absorption, improved charge transfer, and enhanced electron–hole pair separation. With the addition of peroxymonosulfate (PMS), MIL-88B(Fe,Co) powder had superior photocatalytic activity for phenol removal. The reactive seeding growth of MIL-88B(Fe.Co) was utilized to prepare a MIL-88B(Fe,Co)@Al2O3 membrane and integrated in a filtration module to fabricate a photocatalytic membrane reactor (PMR). The permeate flux of the photocatalytic membrane reactor (PMR) was approximately 3500 L m−2 h−1 bar−1 (LMH), and with over 90% phenol removal efficiency. The PMR system also exhibited high stability, reusability, recyclability, and high photocatalytic activity for phenol degradation over 10 cycles using MIL-88B(Fe.Co)@Al2O3 membrane with the addition of PMS. In addition, NH2-grafted MIL-88B(Fe) was prepared by reactive seeding growth method onto the Al2O3 membrane as well. The PMR system with NH2-MIL-88B(Fe)@Al2O3 membrane was used for LDPE filtration and degradation. The PMRs show high permeance flux and reactivity to degrade LDPE. Moreover, The LDPE degradation followed the Norrish mechanism by different radicals generated from photocatalysis. This is the first study to demonstrate a MOF-based Al2O3 membrane via a reactive seeding growth method to fabricate a PMR system, which is an effective and sustainable process for wastewater treatment.
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