The results showed that the decolouration of acid red G mainly owe to the photocatalytic degradation of Co-doped K2Nb4O11, but not to the adsorption on it.

• 研究表明，酸性红G的降解主要是含Co的K2Nb4O11对其的光催化降解，而并非吸附作用，但酸性红G自身也存在少量的光降解。