Visible light responsive semiconductor photocatalysts have attracted considerable attention due to their capacity of efficient use of sunlight to solve energy and environmental problems. Most of bismuth based photocatalysts have narrow bandgap and can absorb abundant visible light in natural solar spectrum. Moreover,the unique layered structure and deeper valance band of the bismuth based photocatalysts make them to have excellent photocatalytic activity and become the focus of research in photocatalysis field. Carbonaceous materials have been widely studied because of their unique physicochemical properties such as large surface area, high thermal and chemical stability and outstanding electron conductivity. Combining bismuth-based photocatalysts with carbonaceous materials, the synergistic effects between them endow the composites with increased surface adsorption capacity, extended light absorption thresholds, and enhanced separation of photogenerated electron/hole pairs. All of these are beneficial to the improvement of photocatalytic activities. In addition, it is easier to separate and recover the composite photocatalysts for recycling utilization, thereby reducing the cost in practical application. Therefore, bismuth based photocatalysts modified with diverse carbonaceous materials are expected to have promising application in future. In this article, the researches on the type, preparation methods, structure, performance, mechanism of action, and application of these carbonaceous materials modified bismuth photocatalysts have been reviewed in detail. The main problems in design, mechanism research and application are presented, and the future development directions have been suggested.

Contents
1 Introduction
1.1 Bismuth based photocatalysts
1.2 Construction of bismuth based composite photocatalysts
2 Carbon loading bismuth based photocatalysts
2.1 Activated carbon supporter
2.2 Graphene supporter
2.3 Carbon nanotubes supporter
2.4 Fullerence and other nanocarbon supporter
3 Carbon coating bismuth-based photocatalysts
4 Carbon doping bismuth-based photocatalysts
5 Conclusion and outlook