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Enhanced lubrication and photo-catalytic degradation of liquid paraffin by coral-like MoS2

Abstract

Friction and wear are common physical phenomena in nature, while lubrication is an effective way to decrease unnecessary friction and wear. With the rapid development of environmental protection consciousness, designing novel lubricants or lubricating additives with excellent lubricating performance and little pollution is the Increasing demand of green tribology. In this work, nanoscale coral-like molybdenum disulfide (MoS2) was prepared via a hydrothermal method. It was first used as a lubricating additive for liquid paraffin (LP), and then it acted as a catalyst for photo-induced degradation of waste LP after test. Many influencing factors (modification, concentration, morphology and temperature, etc.) which can influence the tribological properties and photo-catalytic degradation level were investigated. Experimental results and related analysis indicate that modification by cetyltrimethyl ammonium bromide (CTAB) and proper synthesis temperature are helpful to decrease the fiction coefficient, and organic modification, bigger surface area, narrower band gap and more rim sites with oxidation activity are advantageous to achieve better LP degradation level. Therefore, coral-like MoS2 can serve as both lubricating additive and photo catalyst at the different working stages in the full life cycle of LP, which exhibits great potentials in developing environmental-friendly lubricating systems.

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Publication details

The article was received on 23 Jan 2017, accepted on 18 Jun 2017 and first published on 19 Jun 2017


Article type: Paper
DOI: 10.1039/C7NJ00285H
Citation: New J. Chem., 2017, Accepted Manuscript
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    Enhanced lubrication and photo-catalytic degradation of liquid paraffin by coral-like MoS2

    L. Liu, Z. Huang, Y. peng and P. Huang, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7NJ00285H

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