title: One-pot synthesis of carbon dots using two different acids and their respective unique photoluminescence property.
abstract: Carbon dots, a new class of nanomaterial with unique optical property and have great potential in various applications. This work demonstrated the possibility of tuning the emission wavelength of carbon dots by simply changing the acid type used during synthesis. In particular, sulfuric and phosphoric acids and a mixture of the two were used to carbonize the same starting precursor, sucrose. This resulted in the isolation of carbon dots with blue (440 nm) and green (515 nm) emission. Interestingly, the use of an acid mixture at various ratios did not shift the initial emission profile, but did obviously alter the fluorescence efficiency of the peaks. This clearly showed that acid type can be used as an alternative tool to produce carbon dots that have different emissions using the same starting precursor. Copyright © 2016 John Wiley & Sons, Ltd.
authors.affiliation: Faculty of Engineering, Computing, and Science, Swinburne University of Technology Sarawak Campus, Jalan Simpang Tiga, 93350, Kuching, Sarawak, Malaysia.
authors.forename: Elaine
authors.initials: E
authors.lastname: Loi
authors.affiliation: Faculty of Engineering, Computing, and Science, Swinburne University of Technology Sarawak Campus, Jalan Simpang Tiga, 93350, Kuching, Sarawak, Malaysia.
authors.forename: Roy Wei Chao
authors.initials: RW
authors.lastname: Ng
authors.affiliation: Faculty of Engineering, Computing, and Science, Swinburne University of Technology Sarawak Campus, Jalan Simpang Tiga, 93350, Kuching, Sarawak, Malaysia.|Swinburne Sarawak Research Centre for Sustainable Technologies, Swinburne University of Technology Sarawak Campus, Jalan Simpang Tiga, 93350, Kuching, Sarawak, Malaysia.
authors.forename: Melissa May Fung
authors.initials: MM
authors.lastname: Chang
authors.affiliation: Faculty of Engineering, Computing, and Science, Swinburne University of Technology Sarawak Campus, Jalan Simpang Tiga, 93350, Kuching, Sarawak, Malaysia.|Swinburne Sarawak Research Centre for Sustainable Technologies, Swinburne University of Technology Sarawak Campus, Jalan Simpang Tiga, 93350, Kuching, Sarawak, Malaysia.
authors.forename: Jessica Fung Yee
authors.initials: JF
authors.lastname: Fong
authors.affiliation: Faculty of Engineering, Computing, and Science, Swinburne University of Technology Sarawak Campus, Jalan Simpang Tiga, 93350, Kuching, Sarawak, Malaysia.|Swinburne Sarawak Research Centre for Sustainable Technologies, Swinburne University of Technology Sarawak Campus, Jalan Simpang Tiga, 93350, Kuching, Sarawak, Malaysia.
authors.forename: Yann Huey
authors.initials: YH
authors.lastname: Ng
authors.affiliation: Faculty of Engineering, Computing, and Science, Swinburne University of Technology Sarawak Campus, Jalan Simpang Tiga, 93350, Kuching, Sarawak, Malaysia.|Swinburne Sarawak Research Centre for Sustainable Technologies, Swinburne University of Technology Sarawak Campus, Jalan Simpang Tiga, 93350, Kuching, Sarawak, Malaysia.
authors.forename: Sing Muk
authors.initials: SM
authors.lastname: Ng
mesh_terms: D002244:Carbon / Q000737:chemistry*; D049449:Luminescence; D010756:Phosphoric Acids / Q000737:chemistry*; D055668:Photochemical Processes; D045663:Quantum Dots; D013464:Sulfuric Acids / Q000737:chemistry*
chemical_list: D010756:Phosphoric Acids; D013464:Sulfuric Acids; D002244:Carbon
keywords: acid carbonization; carbon dots; fluorescence; nanoparticles; sucrose