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DOI: 10.1002/adma. 201601621 generally based on the Kirkendall effect, self-assembly, or Ostwald ripening, to name a few.[16] Thus, the facile solvothermal method assisted by tetrafluoroborate-based ionic liquids, the biotemplating process of cellulose [17] and cyclodextrin,[18] and even a simple reaction/diffusion treatment derived from ureaimpregnated cellulose [12p] have been developed for producing various morphologies of TiO2. In addition, a series of capping agents, including ethylenediaminetetraacetic acid (EDTA),[19] inorganic substances (H2O2),[20] biomolecules (amino acid)[20b] and organic additives (tartaric acid)[21] have also been introduced in order to manipulate the orientational growth of TiO2. Zero-dimensional carbon dots (CDs), including carbon quantum dots (CQDs) and graphene quantum dots (GQDs), are considered as a rising star within the family of carbonbased materials because of …