Biomimetic Synthesis of Copper/Polydopamine‐Functionalized Oxygenated Carbon Nitride Composites and Their Application as Lubricants | Zendy

Min Chunying | Zendy; Jia Wei | Zendy; He Zengbao | Zendy; Zhang Kan | Zendy; Yang Yuzi | Zendy; Dong Changkun | Zendy; Zhu Jinfeng | Zendy

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Biomimetic Synthesis of Copper/Polydopamine‐Functionalized Oxygenated Carbon Nitride Composites and Their Application as Lubricants

Author(s) -

Min Chunying,

Jia Wei,

He Zengbao,

Zhang Kan,

Yang Yuzi,

Dong Changkun,

Zhu Jinfeng

Publication year - 2020

Publication title -

chemistryselect

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 34

ISSN - 2365-6549

DOI - 10.1002/slct.202000537

Subject(s) - copper , materials science , nanoparticle , dispersion (optics) , carbon fibers , carbon nitride , nitride , chemical engineering , graphitic carbon nitride , composite material , nuclear chemistry , metallurgy , nanotechnology , composite number , chemistry , organic chemistry , catalysis , layer (electronics) , physics , engineering , photocatalysis , optics

The wet chemical reduction method was used to modify polydopamine (PDA) functionalized oxygenated carbon nitride (O‐g‐C 3 N 4 ) nanosheets to prepare in situ growth of Cu nanoparticles (Cu NPs) decorated on nanosheets. The PDA attached to the surface of O‐g‐C 3 N 4 provided a uniformly distributed platform for copper nanoparticles. It also provided rich functional groups and provided good conditions for the dispersion of Cu/PDA/O‐g‐C 3 N 4 in pure oil. Through TEM testing, Cu NPs with a diameter of 5–10 nm were evenly distributed on the PDA/O‐g‐C 3 N 4 nanosheets. Through the sliding test on the steel surface, it was obvious that adding 0.2 wt % Cu/PDA/O‐g‐C 3 N 4 to pure oil had a lowest coefficient of friction. In addition, the wear marks on the surface of Cu/PDA/O‐g‐C 3 N 4 steel discs were studied with an optical microscope and a three‐dimensional profiler and its wear resistance was better than Cu NPs, O‐g‐C 3 N 4 and Cu/O‐g‐C 3 N 4 .

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