Cinnathambi Subramani, MaheswariMaheswariCinnathambi SubramaniBudiman, IsmailIsmailBudimanSubyakto, SubyaktoSubyaktoSubyaktoChitraningrum, NidyaNidyaChitraningrumWidyaningrum, B. A.B. A.WidyaningrumSaputra, Nur AdiNur AdiSaputraFauzi, Anees Ameera BintiAnees Ameera BintiFauziHata, ToshimitsuToshimitsuHataJebiti Haribabu2025-10-102025-10-10202510225528; 15729028https://hdl.handle.net/20.500.12740/23514In this present review paper, the catalytic applications of carbon quantum dots (CQDs) as an efficient heterogeneous catalyst for organic conversion under sustainable and greener protocols have been investigated. The CQDs have carboxylic acid and hydroxyl functional moieties utilized for the modification of the surface of the CQDs. Moreover, CQDs and CQD-based composites have generated C–C, C–N, C–O, etc., bonds that leads to various organic synthesis via straightforward methodology. The following CQDs and decorated CQDs such as magnetic CQDs, CNDs, CQDs-N(CH<inf>2</inf>PO<inf>3</inf>H<inf>2</inf>)<inf>2</inf>, CQDs-N(CH<inf>2</inf>PO<inf>3</inf>H<inf>2</inf>)<inf>2</inf>/SBA-15, BPEI-CD, CDs/Bi<inf>2</inf>MoO<inf>6</inf>, Cu(I)-doped CQDs and SCQDs catalyzed one-pot multicomponent reactions are discussed. And also, CQDs and decorated CQDs have ensured excellent stability, recyclable, economically viable, and environmentally friendly, shorter reaction time, and avoid tedious work-up procedures. This review paper highlighted the synthesis of a one-pot multicomponent reaction catalyzed by the CQD catalyst. © 2025 Elsevier B.V., All rights reserved.restrictedAccessCARBON QUANTUM DOTSCATALYSTHETEROCYCLEHETEROGENEOUSMULTICOMPONENTONE-POTORGANIC TRANSFORMATIONSBIOSYNTHESISHETEROCYCLESHETEROGENEOUS CATALYSTMULTICOMPONENTSONE POTORGANIC REACTIONREVIEW PAPERS]+ CATALYSTCATALYSISReviewhttps://doi.org/10.1007/s11244-025-02095-y