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Binbin Zhang,Weichen Xu,Qingjun Zhu,Fang Guan,Yimeng Zhang 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.107 No.-
Nepenthes pitcher-inspired slippery surface provides an alternative strategy to overcome the shortcomingsof the current superhydrophobic surfaces such as thermal–mechanical stability and functional durability. Herein, we fabricate a lubricant-infused slippery surface (LISS) through micro-nano structurebuilding, low surface energy molecular grafting and perfluoropolyethers (PFPE) lubricant oil infusion. The surface morphologies, chemical compositions, wettability, dynamic liquids movement, selfcleaning,anti-corrosion behavior, and thermal–mechanical stability were investigated and analyzed. The electrochemical impedance spectroscopy (EIS) results reveal that the fabricated LISS exhibitsenhanced Rct and |Z|0.01Hz values with 2 orders of magnitude higher even after 30 days immersion,demonstrating outstanding long-lasting anti-corrosion properties. Besides, the LISS also exhibits superiorcapacities of hot water repellency (90 C water droplets) and scratching resistance. We believe theseresults have significant implications for understanding the design and multi-functional applications ofbiomimetic liquid-infused slippery materials.
Zhigang Yin,Wei Sun,Yuehua Hu,Runqing Liu,Wei Jiang,Chenhu Zhang,Qingjun Guan,Chenyang Zhang 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.52 No.-
A novel organic compound acetic acid-[(hydrazinylthioxomethyl)thio]-sodium was synthesized andcharacterized. Theflotation performance and adsorption mechanism of AHS to galena were investigatedby micro, benchflotation tests, UV spectra, zeta potential, FTIR and XPS measurements. The resultsdemonstrated that AHS exhibited superior depressing power to galena and could be used as selectivedepressant forflotation separation of molybdenite from galena. The results of UV spectra, FTIR, zetapotential and XPS measurements demonstrated that AHS chemisorb on galena surface by formingfivememberedcheat ring with releasing of H ions. Therefore, the possible adsorption mode of AHS on galenasurface was recommended.