You can't recharge a glow stick, but you can make the glow last longer by freezing it. It slows down the chemical reaction that produces the glow
The Glowtopia Glow Stick Guide to Camping - Glowtopia
Can you recharge a glow stick? - Glowtopia
Homeschool and Light Tables: Glow Stick Aura
Do glow sticks last longer in the cold? - Quora
Super Charge Glow Sticks to Save Batteries by UVPaqlite
Glowtopia FAQs Commonly asked Glowstick Questions
Premium Multicoloured LED 7″ Glow Stick - Glowtopia
LifeGear Reusable Green Glow Sticks are versatile and ideal for both festive occasions and emergency situations. The twist on, twist off functionality
LifeGear LED Reusable Glow Stick 2 Pack - Green
LifeGear LED USB Rechargeable Glow Stick + Flashlight
How to Recharge a Glow-stick - Instructables
Reusable Glow Stick Combo - 2x Tooblite 6 inch and 2x UVGloStiks
How to Make Glow Sticks Glow Again: 8 Steps (with Pictures)
Do glow sticks last longer in the cold? - Quora