Journal
CHEMICAL ENGINEERING JOURNAL
Volume 426, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2021.131479
Keywords
3D printing; Boron-doped diamond electrode; Electrochemical degradation; Customized anodes; Controlled geometries
Categories
Funding
- National Key Research and Devel-opment Program of China [2016YFB0301400]
- National Natural Science Foundation of China [52071345, 51874370, 51601226]
- Key Research and Development Program of Guangdong Province [2020B01085001]
- Natural Science Foundation of Hunan Province [2019JJ40375, 2019JJ50793]
- State Key Laboratory of Powder Metallurgy
- Hunan Provin-cial Natural Science Foundation of China [2019JJ50796]
- Guangdong Provincial Basic and Applied Basic Research Foundation of China [2019A1515110934]
Ask authors/readers for more resources
A novel 3D boron-doped diamond (3D-BDD) anode was successfully developed through metal printing and chemical vapor deposition, which could efficiently produce more reactive .OH and decompose organic compounds with lower energy consumption and higher removal rates. The through-holes on the BDD electrode promote mass transfer, leading to more .OH generation on 3D-BDD compared to conventional 2D-BDD electrodes. This demonstrates the potential for batch fabrication of customized, rationally-designed BDD anodes with controllable geometries and sizes.
The performance of the electrochemical advanced oxidation process (EAOP) is usually hindered by the structure of electrode and the production of hydroxyl radical (.OH). Here, a novel 3D boron-doped diamond (3D-BDD) anode was successfully developed through metal printing and chemical vapor deposition. The designed 3D-BDD EAOP system could produce more reactive .OH and decompose different organic compounds more efficiently, displaying lower energy consumption and higher color and total organic carbon removal compared to conventional 2D-BDD electrode. The computational fluid dynamics (CFD) calculation demonstrated the intrinsic through-holes on the BDD electrode could promote the mass transfer of chemical substances, and the electron spin resonance (ESR) measurement indicated more .OH were generated on 3D-BDD. This is the first demonstration of 3D printing employed in the synthesis of BDD anodes for organic compounds removal, which gives a perspective insight into batch fabrication of customized, rationally-designed BDD anodes with controllable geometries and sizes.
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