▎ 摘　　要

A catalytic membrane nano reactor (CMNR) with two-dimensional channels has been fabricated by graphene oxide (GO) nanosheets with ZIF-67 derived Co3S4 catalyst immobilized on. The characterization by X-ray diffraction (XRD), Raman spectroscopy and X-ray photoelectron Spectroscopy (XPS) indicates the successful fabrication of Co3S4@GO nanosheets. The uniformly dispersed Co3S4 nanoparticles immobilized on GO nanosheets in the range of 3-5 nm and the thickness of the CMNR is in the range of 206-1091 nm can be determined by Transmission electron microscope (TEM) and Scanning electron microscope (SEM), respectively. The catalytic performance of this CMNR has been evaluated by 4-nitrothiophenol (4-NTP) reduction under the flow-through mode. The 4-NTP conversion of over 99% can be achieved under the condition of membrane flux of being 144.4 L.m(-2).h(-1). The uniformly dispersed Co3S4 with small size and the confined two-dimensional channels with nano scale for enhanced mass transfer can be contributed to the good catalytic performance of this CMNR. High 4-NTP conversion and nice stability can be achieved for a long time by this CMNR under the condition of humic acid mixed in the reactant solution, since the CMNR is resistant to the poisoning of catalysts by humic acid.