Journal
NANO LETTERS
Volume 19, Issue 8, Pages 5423-5430Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.9b01925
Keywords
Iron nanoparticles; self-assembly approach; carbon coating; core-shell structure; electrocatalytic denitrification
Categories
Funding
- National Natural Science Foundation of China [51702046, 51772050, 51432004, 51822202]
- Innovation Program of Shanghai Municipal Education Commission [2017-01-07-00-03-E00025]
- Shanghai Committee of Science and Technology, China [17ZR1401000, 18JC1411200]
- Shanghai Pujiang Program [17PJ1400100]
- State Key Laboratory of Pollution Control and Resource Reuse Foundation [PCRRF17005]
- Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University
Ask authors/readers for more resources
Electrocatalytic denitrification is considered as the most promising technology to transform nitrates to nitrogen gas in sewage so far. Although noble metal-based catalysts as a cathode material have reached decent removal capacity of nitrate, the high cost is the main hamper of electrocatalytic reduction. Therefore, the development of alternative catalysis toward highly effective denitrification is imperative yet still remains a significant challenge. Herein, a corchorifolius-like structure, where Fe nanoparticles are sealed in carbon microspheres (CL-Fe@C) with a rough surface, has been elaborately designed by self assemble strategy. Impressively, the architectured CL-Fe@C microspheres are surrounded with a lot of small iron nanoparticles and contain the high iron content of similar to 74%. As a result, an excellent removal capacity of 1816 mg N/g Fe and a high nitrogen selectivity of 98% under a very low nitrate concentration of 100 mg/L are achieved when using the CL-Fe@C microspheres as electrocatalytic denitrification. The present work not only explores high performance electrocatalysis for the denitrification but also promote new inspiration for the preparation of other iron-based functional materials for diverse applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available