*Article* **CO2 Reduction to Valuable Chemicals on TiO2-Carbon Photocatalysts Deposited on Silica Cloth**

**Antoni Waldemar Morawski 1, Katarzyna Cmielewska ´ 1,\*, Kordian Witkowski 1, Ewelina Kusiak-Nejman 1, Iwona Pełech 1, Piotr Staciwa 1, Ewa Ekiert 1, Daniel Sibera 1,2, Agnieszka Wanag 1, Marcin Gano <sup>1</sup> and Urszula Narkiewicz <sup>1</sup>**


**Abstract:** A new photocatalyst for CO2 reduction has been presented. The photocatalyst was prepared from a combination of a commercial P25 with a mesopore structure and carbon spheres with a microporous structure with high CO2 adsorption capacity. Then, the obtained hybrid TiO2-carbon sphere photocatalysts were deposited on a glass fiber fabric. The combined TiO2-carbon spheres/silica cloth photocatalysts showed higher efficiency in the two-electron CO2 reduction towards CO than in the eight-electron reaction to methane. The 0.5 g graphitic carbon spheres combined with 1 g of TiO2 P25 resulted in almost 100% selectivity to CO. From a practical point of view, this is promising as it economically eliminates the need to separate CO from the gas mixture after the reaction, which also contains CH4 and H2.

**Keywords:** photocatalysis; CO2 reduction; carbon-TiO2
