Environmental method for preparation of higher color strength dyeing cotton fabrics with colored nanosilica pigment

Colored wastewater discharge into the water system would pose a severe threat to human health and aquatic life. It is critical enhance dye utilization reduce in textile industry. In this work, novel colored silica nanosphere was designed as pigment cotton fabrics could be recycled dyeing process. The worm-like hydrophilic porous (WHMS) nanospheres possess large specific surface area of 968.61 m2/g, an average size 300 nm, strong electronegativity. WHMS-dye fabricated through adsorption rhodamine B (RB) methylene blue (MB) onto WHMS nanospheres. capacities towards RB MB were above 500 mg/g. demonstrated that prepared possessed good stability coloration performance on fabrics, originating from enrichment dyes color strength nanospheres-dyed deeper compared with pure dye. Moreover, dyed show satisfactory fastness hand feel. reused for next process discharge. This work shows may used environmentally sound avoid amount