One-step synthesis of layered double hydroxide-intercalated gluconate for removal of borate

- Layer double hydroxide with gluconate interlayer (G-LDH) was synthesized.
- G-LDH presented a great capability of removing borate.
- G-LDH has good sorbent selectivity and stability.
- Sorption of borate by G-LDH is mainly through complexation with borate.