The illumination of source light and oxygenation are two fundamental factors for superior photocatalytic performance in waste water treatment. Powder form of existing photocatalyst reduced the performance of the photocatalyst due to lowering active surface area, reduce light utilization and limiting contact area with the pollutants. A number of researchers came out with fresh and novel ideas on immobilizing potential photocatalyst on floatable substrate to form floating composite photocatalyst. The floating composite photocatalyst is an attractive option for waste water treatment due to utilization of full solar irradiation of non-oxygenated and non-stirred reservoir. This makes development of floating photocatalyst is significant to be reviewed. This review highlights the most recent fabrication and application of floating photocatalyst for wastewater treatment. Fabrication techniques such as sol-gel, surface coating, hydrothermal, solvent casting, surface modification, three-dimensional printing and low temperature ultrasonic were reviewed. Moreover, the perspective on future direction to improve the photocatalytic performances were discussed at the end of the review.

源光的照明和氧合是废水处理中优异的光催化性能的两个基本因素。现有的光催化剂的粉末形式由于降低了活性表面积，降低了光利用率并限制了与污染物的接触面积而降低了光催化剂的性能。许多研究者提出了关于将潜在的光催化剂固定在可漂浮基质上以形成漂浮复合光催化剂的新颖新颖的想法。漂浮的复合光催化剂由于利用了无氧和无搅拌储罐的完全太阳辐射而成为废水处理的有吸引力的选择。这使得浮动光催化剂的开发具有重要的意义。这篇综述重点介绍了用于废水处理的浮动光催化剂的最新制造和应用。对溶胶-凝胶，表面涂层，水热，溶剂浇铸，表面改性，三维印刷和低温超声等制造技术进行了综述。此外，在本评论的结尾讨论了关于改善光催化性能的未来方向的观点。