MXene quantum dots for geochemical ion sensing: mechanism-driven design of integrated platforms

Key Points

• The study aims to explore the use of MXene quantum dots for ultrasensitive sensing of toxic metals and oxyanions.
• Engineered surface terminations of MXene quantum dots were designed.
• Charge-transfer pathways were analyzed to enhance ion sensing capabilities.
• Testing involved detecting various toxic metals and oxyanions.
• MXDs exhibited ultrasensitive detection of ions at low concentrations.
• The engineered platforms enabled simultaneous sensing and remediation of toxic substances.