Correction: Photoluminescence tuning in carbon dots: Surface passivation or/and functionalization, heteroatom doping (Journal of Materials Chemistry C (2018) 6 (7944-7970) DOI: 10.1039/C7TC05878K)

The authors regret an inappropriate second affiliation of the first author and the corresponding description in his biography, due to his incomplete PhD registration process at University of Oslo when the review paper was accepted for publication. The correct affiliation list is as above. This also results in a change to the author biography. The correct biography for Linbo Li is as below. Linbo Li received his MEng (2016) at Capital Normal University. He is a Naerings-PhD candidate researcher (currently to be registered) at Sensovann AS. His research interests focus on (1) development of electrochemical sensors and fluorescent chemosensors based on carbon nanomaterials (carbon nanodots, graphene quantum dots, carbon nanotubes, etc.), (2) advancement of functionality of nanomaterials through atomic doping andmolecular conjugation, and (3) study of the electrocatalytic properties of nanocrystalline transition metal oxides and their application in lithium-oxygen cells. The authors also regret the omission of an RFF Oslofjordfond project (En ny type Li-O2 Batteri med lavt overpotensiale og langt "cycle life", no. 282494) from the Acknowledgements section. The correct Acknowledgements section is as below. Acknowledgements This work was financially supported by the following grants: RFF Oslofjordfond projects: (1) Touchsensor for enklereograskereurinprovetakingoganalyse, no. 234972, (2) DisruptivInnovasjon for Vannovervaking-ForbedringiStyringenavVannkvalitet, no. 272037, (3) Papirbasertkolorimetrisksensorsystem med integrert polymerlyskilderog-detektorer for kvantitativdeteksjonavbiomarkorerispytt, no. 249017, (4) Mikro/nano-strukturerteoverflater for in situ evaporeringskjolingvedkrevende, no. 258902, (5) Analyseavbiomarkoreriurin med et avansertkolorimetriskbiosensorinnlegg, no. 255893, (6) Smart-toy for eldreomsorg: Oppfolgingavfysiskeaktiviteterogovervakningavfysiologisk status isanntid, no. 260586, (7) Praktisk og effektiv oppfolging av KOLS-pasienter i kommunene, no. 285575, and (8) En ny type Li-O2 Batteri med lavt overpotensiale og langt "cycle life", no. 282494. RFF Hovedstaden: BiologiskVannalarmsystem for a styrkeoffentligvannkvalitets-styring, no. 273869. Research Council of Norway projects: (1) FORNY2020: SENS-U: Et nyttogtidsbesparendeprodukt for provetakingoganalyseavurinibleie no. 268481, (2) NANO2021, no. 263783. EU Erasmus+ Capacity Building in Higher Education: Internationalised Master Degree Education in Nanoelectronics in Asian Universities, no. 573828-EPP-1-2016-1-BG-EPPKA2- CBHE-JP. National Natural Science Foundation: (1) No. 61531008, (2) No. 61550110253, (3) No. 61650410655, (4) No. 11702045. Chongqing Research Program of Basic Research and Frontier Technology: no. cstc2015jcyjBX0004. Chongqing Innovation Team of Universities and Colleges-Smart Micro-Nano Systems Technology and Application: No. CXTDX201601025. Chongqing Science and Technology Commission-the Leader of Science and Technology Innovation: no. CSTCCXLJRC201702. Chongqing Key Laboratory of Micro-Nanosystems Technology and Smart Transducing no. KFJJ2017087. The 13th Recruitment Program of Global Experts" (known as "the Thousand Talents Plan"), the Recruitment Program for Innovative Talents Chinese government, Xinjiang University, Tao DONG. The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.