Abstract
Durable superhydrophobic cotton textiles with ultraviolet-blocking property and photocatalytic activity were prepared by coating polydimethylsiloxane (PDMS)/copper sulfide (CuS) based on the copper sulfide with hierarchical mesoporous microstructure like flower, which was composed of self-assembled nanosheets. The treated textile showed the exceptional superhydrophobic surface whose water contact angle and shedding angle was 157.7 ± 0.9° and 7.2 ± 0.2°, respectively, due to the simultaneous introduction of hierarchical porous surface topography constructed by flower-like CuS and low surface tension PDMS layer on cotton fabric. The obtained superhydrophobic cotton fabric was also proved to possess high ultraviolet-blocking performance with a large ultraviolet protection factor (UPF) of 511.09 and good photocatalytic activity. The prepared superhydrophobic fabrics showed excellent ultraviolet-durability and laundering durability attributed to stable and firm PDMS adhesive layer. This simple approach can show great potential for wide application and prospect.
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