The valorisation of cellulose and CO2 streams has recently been reported using a TiO2 nanoparticle with an immobilised CO2 reducing cobalt(II) bis(terpyridine) catalyst containing phosphonate anchors (CotpyP) (TiO2|CotpyP). Photoexcitation of this hybrid TiO2|CotpyP photocatalyst reduced aqueous CO2 to syngas, while cellulose-derived glucose was simultaneously oxidised to formate and arabinose. TiO2|CotpyP could operate for 24 h and be recycled up to three times. However, only concentrated CO2 and pure cellulose have been used, and no strategy for lignin separation and utilisation were reported in this previous study.