Remarkably Facile Preparation of Superhydrophobic Functionalized Bismuth Trioxide (Bi2O3) Coatings

Abstract

Herein, a novel superhydrophobic functionalized nano-Bi2O3 coating is designed and fabricated using electrophoretic assembly deposition (EAD) in the optimal suspension of polyethylene glycol, ethanol, acetylacetone, and surface functionalization. The small size (70 nm, nano-scale) of Bi2O3 particles and uniform distribution make the target film possessing a promising structure for realizing hydrophobic functionalization. Moreover, the hydrophobicity and stability results indicate that the product has a high-water contact angle (CA) of ca. 167° and is kept almost stable after 180 days exposure in the natural environment. These findings will provide new insight into a better design of superhydrophobic functional coatings via this facile method, holding great promise for future various applications.

Electrophoretic‐deposited Superhydrophobic Coatings

“…ratio), and a subsequent PFDTS treatment. The Cθ (∼167°) remained almost stable even after 180 days of air exposure [121] …”

“…Guo et al. reported a number of works on EPD SHPC coatings with the help of low SE PFDTS/FAS‐17 that includes SHPC Ni/Al, [115] Al, [116–118] Al x Ni y (Bi 2 O 3 ) z , [119] ZnO, [120] Bi 2 O 3 , [120,121] Al/Bi 2 O 3 , [122] Al/CuO, [123] MoO 3 , [124] and Al/ZnO [125]…”

“…Several works employed Al including Al plate, [101,103,105,116,124] flexible Al foil, [111] laser‐etched Al, [128] and Al alloys [96,98,136] . Ti plate/sheet was widely used [94,118,120,121,125,129,130,132,135] . ITO/FTO‐coated glass, [93,95,107,110–112] Cu, [93,113,114,135] Ni, [115,119,122,123,135] and polyester fabric‐based, [99] electrodes were also employed.…”

Design and Study of Novel Composites Based on EPDM Rubber Containing Bismuth (III) Oxide and Graphene Nanoplatelets for Gamma Radiation Shielding

“…The highest recorded values obtained for both Shore A hardness and ARI in compounds containing bismuth (III) oxide demonstrate a possible favorable affinity interaction, probably due to the hydrophobic nature of bismuth (III) oxide, which is also present in EPDM material [ 35 , 36 ]. Therefore, composites containing bismuth (III) oxide should exhibit greater adhesion to the polymer, imparting greater abrasion resistance.…”

Electrophoretic Deposition and Characterization of Er-Doped Bi2O3 Cathode Barrier Coatings on Non-Conductive Ce0.8Sm0.2O1.9 Electrolyte Substrates

“…The movement and deposition of powder particles in suspension on the substrate occurs under the influence of an external electric field, which is accompanied by the formation of a coating, which is subsequently subjected to drying and high-temperature sintering. To the best of our knowledge, there are a few published studies on the EPD of Bi 2 O 3 [24,25] and BiVO 4 [26,27] coatings for photo-electrochemical cells and photocatalytic applications. However, the preparation of stable suspensions based on doped Bi 2 O 3 with following electrophoretic deposition on non-conductive dense electrolyte substrates is not a covered topic.…”