High Efficient Construction and Comprehensive Evaluation of Superhydrophobic Filter Screen Coatings
Journal of Nanomaterials(2023)
Abstract
The preparation of environment-friendly and efficient superhydrophobic filter screen still faces great challenges. Herein, a compact, solid cerium stearate superhydrophobic-coated stainless steel mesh (SSSM) was prepared by a simple, efficient, and environmentally friendly one-step electrodeposition process. Fourier transform infrared (FTIR) spectroscopy, energy-dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM), and contact angle measurement were used to characterize the surface coating (composition, morphology, and contact angle) of SSSM. The results show that the SSSM surface is a dense mastoid cerium stearate micronanostructure coating, and its static contact angle with water can reach 162.73°. In addition, it has excellent self-cleaning performance for conventional simulated pollutants, and the contact angle can still reach 161° after 28 days of storage. In the wear resistance and corrosion resistance tests, the contact angle can still be kept above 150° after 600 mm abrasion under the load of 19.6 kPa, the corrosion current of SSSM is reduced by two orders of magnitude, and its corrosion inhibition efficiency reaches 99.74%. In addition, the oil/water separation performance of SSSM is also very good, and the separation efficiency for different oil/water mixtures exceeds 97%. This study will provide important data support and method reference for the preparation of metal anticorrosion superhydrophobic material coating and the development of environment-friendly and efficient oil–water separation materials.
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