# A more accurate estimation of the specific surface area of TiO2 nanoparticles capped with organic ligands

## TL;DR

This paper shows how using F− ions can remove organic coatings from TiO2 nanoparticles to better measure their surface area.

## Contribution

A novel method using F− ions to strip organic ligands for accurate surface area estimation of TiO2 nanoparticles.

## Key findings

- F− ions effectively remove organic ligands from TiO2 nanoparticle surfaces.
- N2 adsorption–desorption isotherms with the BET model provide more accurate surface area measurements after ligand removal.

## Abstract

The specific surface area is important information for nanoparticles. Herein, we demonstrate that treatment with F− ions can strip organic ligands from the surface of TiO2 nanoparticles, which enables a more accurate estimation of the specific surface area using N2 adsorption–desorption isotherms in conjunction with the Brunauer–Emmett–Teller model.

F− ions can strip organic ligands from the surface of TiO2 nanoparticles, which enables a more accurate estimation of the specific surface area using N2 adsorption–desorption isotherms in conjunction with the Brunauer–Emmett–Teller model.