Single-layer Ti3C2 etching method

1.6g of lithium fluoride was slowly dissolved in 20mL of 9M hydrochloric acid, stirred for 5 minutes, slowly added 1g of Ti3AlC2 (for 10 minutes), stirred at 45 degrees Celsius for 24 hours, and then washed with deionized water and centrifuged at 3500 Centrifuge for 5 minutes each time, and centrifuge for about 6-8 times to make the pH of the solution greater than 6. Collect the precipitate, dissolve it in 100 mL of water, and sonicate for 3 hours in an atmosphere protected by argon. Finally, 3500 rpm, centrifuge for one hour, and collect the supernatant.
2. Single-layer Ti2C: 0.67g of lithium fluoride is slowly dissolved in 10mL of 6M hydrochloric acid, stirred for 5 minutes, slowly added 1g of Ti2AlC (for 10 minutes), stirred at room temperature for 24 hours, and then washed with deionized water and centrifuged The centrifugation speed is 3500 revolutions per minute, each centrifugation is 5 minutes, and the centrifugation is about 6-8 times, so that the pH of the solution is greater than 6. Collect the precipitate, dissolve it in 100mL water, and sonicate in an atmosphere protected by argon for 3 hours. Finally, 3500 rpm, centrifuge for one hour, and collect the supernatant.