Effect of chemical heterogeneity on photoluminescence of graphite oxide treated with S-/N-containing modifiers

- An easy solvothermal method for obtaining S- and N-codoped GO is proposed.
- The modifications result in the GO surface of developed chemical heterogeneity.
- Modified GO of high chemical heterogeneity exhibits photoluminescence properties.
- Addition of silver quenches the luminesce signal suggesting sensing properties.
- The polar functional groups are the potential seeds for composite formation.