Synthesize and characteristic of GO–B–TiO2 were investigated in this manuscript.
Degradation of 4-NP in a suspended photo catalytic reactor under visible light irradiation was investigated.
The effect of initial COD concentration, initial pH and catalyst loading on photo catalytic performance was investigated.
The modified TiO2 with graphene oxide and boron (GO–B–TiO2) was a novel photo catalyst and it had a a narrower band gap and subsequently higher photo catalytic activity compared to single modified TiO2 (B–TiO2 and GO–TiO2).