郭新闻

个人信息Personal Information

教授

博士生导师

硕士生导师

主要任职:盘锦校区管委会副主任兼教学与科研工作部部长

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:化工学院

学科:工业催化. 物理化学

办公地点:化工实验楼B427

联系方式:18641143913

电子邮箱:guoxw@dlut.edu.cn

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Hollow zeolite-encapsulated Fe-Cu bimetallic catalysts for phenol degradation

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论文类型:期刊论文

发表时间:2017-11-15

发表刊物:2nd International Symposium on Catalytic Science and Technology in Sustainable Energy and Environment (EECAT)

收录刊物:Scopus、SCIE、EI、CPCI-S

卷号:297

期号:,SI

页面范围:335-343

ISSN号:0920-5861

关键字:Hollow zeolite; Phenol degradation; Fe Cu bimetal; Encapsulate

摘要:Highly dispersed Fe-Cu bimetallic oxide nanoparticles were successfully encapsulated in hollow Silicalite-1 single crystals (Fe2O3CuO@ Hol S-1) by tetrapropylammonium hydroxide (TPAOH) hydrothermal treatment with an "impregnation-dissolution-recrystallization" process. Due to the Fe-Cu bimetallic interaction compared with single iron oxide, Fe-Cu bimetallic oxide exhibits a higher dispersion with the particle size decreasing from similar to 11.3 nm to similar to 3.7 nm. For aqueous phenol degradation, the Fe2O3CuO@ Hol-S-1 catalyst exhibits high activity attributed to the enhanced transport of reactants/products in the short microporous channels (20 nm) and the small metal oxide particle size. Interestingly, the particle size of encapsulated Fe2O3-CuO (3.7 nm) is larger than that of zeolite micropore (0.53 nm), which helps preventing the leaching of metal oxide that is a significant problem for conventional supported Fe catalyst in this reaction. (C) 2017 Elsevier B.V. All rights reserved.