TY - JOUR
T1 - ZIF-Derived Co/Zn Bimetallic Catalytic Membrane with Abundant CNTs for Highly Efficient Reduction of p-Nitrophenol
AU - Jiang, Hong
AU - Wang, Shuangqiang
AU - Chen, Qingqing
AU - Du, Yan
AU - Chen, Rizhi
N1 - Publisher Copyright:
© 2022 American Chemical Society.
PY - 2022/6/15
Y1 - 2022/6/15
N2 - Design and synthesis of cheap and high-efficiency catalytic membranes are of great significance for green chemical engineering. Herein, we report a Co/Zn bimetallic catalytic membrane (CoZn@CM) through a self-sacrificial template approach, where Co/Zn zeolitic imidazolate framework (Co/Zn-ZIF) was first in situ grown on the ceramic membrane (CM) and then pyrolyzed under Ar atmosphere. Adjusting the Co2+ concentration during the synthesis of Co/Zn-ZIF@CM and the pyrolysis temperature can achieve the catalytic membrane of CoZn@CM with rich carbon nanotubes (CNTs) on the membrane, lots of Co nanoparticles with a smaller particle size and a large number of mesopores, thereby improving its catalytic activity for the liquid-phase p-nitrophenol hydrogenation to p-aminophenol in a flow-through catalytic membrane reactor. The as-fabricated Co0.2Zn0.4-920@CM exhibits excellent catalytic activity, which is about 2.7 times that of Co0Zn0.6-920@CM and 2.4 times that of Co0.2Zn0.4-770@CM. Moreover, Co0.2Zn0.4-920@CM can keep its catalytic performance after five reaction cycles of p-nitrophenol hydrogenation.
AB - Design and synthesis of cheap and high-efficiency catalytic membranes are of great significance for green chemical engineering. Herein, we report a Co/Zn bimetallic catalytic membrane (CoZn@CM) through a self-sacrificial template approach, where Co/Zn zeolitic imidazolate framework (Co/Zn-ZIF) was first in situ grown on the ceramic membrane (CM) and then pyrolyzed under Ar atmosphere. Adjusting the Co2+ concentration during the synthesis of Co/Zn-ZIF@CM and the pyrolysis temperature can achieve the catalytic membrane of CoZn@CM with rich carbon nanotubes (CNTs) on the membrane, lots of Co nanoparticles with a smaller particle size and a large number of mesopores, thereby improving its catalytic activity for the liquid-phase p-nitrophenol hydrogenation to p-aminophenol in a flow-through catalytic membrane reactor. The as-fabricated Co0.2Zn0.4-920@CM exhibits excellent catalytic activity, which is about 2.7 times that of Co0Zn0.6-920@CM and 2.4 times that of Co0.2Zn0.4-770@CM. Moreover, Co0.2Zn0.4-920@CM can keep its catalytic performance after five reaction cycles of p-nitrophenol hydrogenation.
UR - http://www.scopus.com/inward/record.url?scp=85131968353&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.2c01190
DO - 10.1021/acs.iecr.2c01190
M3 - 文章
AN - SCOPUS:85131968353
SN - 0888-5885
VL - 61
SP - 7862
EP - 7873
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 23
ER -