文献类型：期刊文献

英文题名：Electrochemical oxidation of phenol in a PtRu/NbC membrane-based catalytic nanoreactor

作者：Ma, Jing[1];Wei, Wei[2];Qin, Guotong[1];Jiang, Lei[3];Wong, Ngie Hing[4];Sunarso, Jaka[4];Liu, Shaomin[5]

第一作者：Ma, Jing

通讯作者：Qin, GT[1]

机构：[1]Beihang Univ, Sch Mat Sci & Engn, Shahe Campus, Beijing 102206, Peoples R China;[2]Beijing Union Univ, Coll Biochem Engn, 18 Sanqu Fatouxili, Beijing 100023, Peoples R China;[3]Beihang Univ, Sch Chem, Key Lab Bioinspired Smart Interfacial Sci & Techno, Minist Educ, 37 Xueyuan Rd, Beijing 100191, Peoples R China;[4]Swinburne Univ Technol, Fac Engn Comp & Sci, Res Ctr Sustainable Technol, Jalan Simpang Tiga, Kuching 93350, Sarawak, Malaysia;[5]Tiangong Univ, State Key Lab Separat Membranes & Membrane Proc, Tianjin 300387, Peoples R China

第一机构：Beihang Univ, Sch Mat Sci & Engn, Shahe Campus, Beijing 102206, Peoples R China

通讯机构：[1]corresponding author), Beihang Univ, Sch Mat Sci & Engn, Shahe Campus, Beijing 102206, Peoples R China.

年份：2023

卷号：11

期号：5

外文期刊名：JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING

收录：;EI(收录号：20233914810214);Scopus(收录号：2-s2.0-85172252789);WOS:【SCI-EXPANDED(收录号:WOS:001091933000001)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant No. 52000006, 51772031, 52070009, 51678019) and the China Postdoctoral Science Foundation (Grant No. 2020TQ0026) .

语种：英文

外文关键词：Electrochemical oxidation; Phenol; Membrane-based catalytic nanoreactor; Niobium carbide membrane; Low toxic products

摘要：Electrochemical oxidation has attracted growing attention to treat organic in wastewater. However, achieving a high reactor efficiency and harmless treatment of the toxic organics is still a significant challenge. In this work, the bimetal Pt and Ru were firstly co-electrodeposited on the surface of nanoporous niobium carbide (NbC) membranes (similar to 8.3 nm pore size) applying for anode in flow-through reactor for phenol electrochemical oxidation. In a continuous flow-through reactor, the single-pass removals of phenol and chemical oxygen demand (COD) were 99.7 % and 74.2 %, respectively, with a short hydraulic retention time of 342 s, demonstrating rapid phenol degradation that is an order of magnitude shorter than those reported in other studies. This excellent reactor efficiency was ascribed to a large interfacial reaction area providing by the pollutant phase-catalytic membrane-green product phase. We compared the mass transfer of flow-through and flow-by reactor testifying the high efficiency of flow-through reactor. The excellent stability of PtRu/NbC anode enable this reactor to operate 50 h stably. Moreover, the presence of low or non-toxic (catechol and acetic acid) as the residues of phenol degradation resulting from the contribution of synergistic reaction between direct and indirect oxidation process.