Acid-resistant bilayer MXene/attapulgite-g-C 3 N 4 /BiOBr aerogel for high-efficiency solar-driven interfacial evaporation and photocatalytic water treatment

Key Points

• This research aims to develop a bilayered aerogel for efficient solar-driven interfacial evaporation and photocatalytic treatment of contaminated wastewater.
• Constructed MXene/PPAL-CN/BiOBr aerogel with a type-II heterojunction.
• Tested solar evaporation efficiency in acidic conditions with 3% H2SO4.
• Evaluated degradation of tetracycline (TC) in wastewater over 80 minutes.
• Achieved a solar evaporation rate of 1.59 kg m−2 h−1, with 97.1% efficiency.
• Maintained acid resistance with a rate of 1.50 kg m−2 h−1 in 3% H2SO4.
• Attained 91% TC degradation after 80 minutes of treatment.