Rapid and mild acid-induced recovery of high-yield carbon quantum dots from commercial black liquor

Key Points

• The aim is to develop a simple method for recovering high-yield carbon quantum dots from commercial black liquor.
• Utilized 60 wt% H2SO4 solution for acidification
• Implemented a rapid and mild acid-induced strategy for CQD extraction
• Focused on optimizing yield during the recovery process
• Achieved high yield of carbon quantum dots from black liquor
• Demonstrated effective acid-induced recovery technique
• Outlined potential applications for the recovered CQDs