In this paper, research progress about the utilization of non-TiO₂ photocatalysts in degradation of gaseous VOCs are reviewed. We give a concise overview of several novel non-TiO₂ photocatalysts with a focus in their structure, which affect the catalytic activities, including metal oxide, wide bandgap p-block metal oxides/hydroxides, perovskite-type, spinel-type, bismuth based compounds, vanadium based compounds, et al. In addition, the research progress of influence factors of non-TiO₂ photocatalytic purification of gaseous VOCs exhaust is summarized from photocatalytic reaction conditions (such as VOCs initial concentration, flow rate, light source, light intensity, reaction temperature and humidity). Finally, the fundamental challenges and perspectives of non-TiO₂ photocatalysts are briefly brought up.

Contents
1 Introduction
2 Non-TiO₂ photocatalytic oxidation of VOCs
2.1 Metal oxide photocatalysts
2.2 Wide bandgap p-block metal oxides/hydroxides photocatalysts
2.3 Perovskite-type oxides photocatalysts
2.4 Spinel-type photocatalysts
2.5 Bismuth based photocatalysts
2.6 Vanadium based photocatalysts
2.7 Other photocatalysts
3 The effect of process parameters on VOCs purification
3.1 The initial concentration of VOCs and flow rate
3.2 The light source and light intensity
3.3 Temperature and humidity
3.4 Other parameters
4 Conclusion and outlook