Synergistic dual-mechanism design: NiO-decorated pyrrolic-N doped carbon for ultrahigh-rate and selective recovery of silver ions via capacitive deionization

Key Points

• Ultrahigh-rate recovery of silver ions is achieved using a novel capacitive deionization approach.
• The dual-mechanism design integrates NiO with pyrrolic-N doped carbon to enhance ion selectivity and recovery speeds.
• Capacitive deionization techniques were implemented to optimize silver ion removal from aqueous solutions.
• This approach may enable more efficient resource recovery from wastewater with potential economic benefits.