Water transport through the inward combined carbon nanotube

The structure of the carbon nanotube affects water transport greatly. However, there is little understanding of water transport through the inward combined carbon nanotube. Molecular dynamics simulations are adopted to investigate the properties of water molecules through the inward combined carbon nanotube in this article. We find that water unidirectional transport efficiency increases in the inward combined carbon nanotube unless water molecules cannot pass through the inward combined carbon nanotube. The occupancy of water molecules, the bidirectional water transfer rate, the unidirectional water transfer rate, the velocity, and the order parameter of water molecules in the inward carbon nanotube are dependent on the structure of the inward combined carbon nanotube. Our results pave the way for understanding the inward combined structure effect on the transport of water molecules.