Preparation of solvent-free starch-based carbon dots for the selective detection of Ru3+ ions

Menglin Chen; Can Liu; Jichao Zhai; Yulong An; Yan Li; Yunwu Zheng; Hao Tian; Rui Shi; Xiahong He; Xu Lin

doi:10.1039/d2ra03277e

Preparation of solvent-free starch-based carbon dots for the selective detection of Ru³⁺ ions

RSC Adv. 2022 Jun 28;12(29):18779-18783. doi: 10.1039/d2ra03277e. eCollection 2022 Jun 22.

Authors

Menglin Chen^{1

2}, Can Liu³, Jichao Zhai³, Yulong An³, Yan Li³, Yunwu Zheng³, Hao Tian⁴, Rui Shi², Xiahong He², Xu Lin^{1

2}

Affiliations

¹ Yunnan Key Laboratory of Wood Adhesives and Glued Products National Joint Engineering Research Center for Highly-Efficient Utilization of Forest Biomass Resources, Southwest Forestry University 300 Bailong Road Kunming 650224 Yunnan Province China linxunefu@126.com.
² Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University Kunming China.
³ National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forestry Resources, Southwest Forestry University Kunming China.
⁴ Agro-products Processing Research Institute, Yunnan Academy of Agricultural Sciences Kunming China.

Abstract

A simple, green, and solvent-free pyrolysis method for the preparation of starch-based carbon dots (CDs) was developed. The CDs prepared at 300 °C exhibited a highest quantum yield of 21.0%, which was mainly due to the high degree of graphitisation of the CDs. The CDs were selective for the detection of Ru³⁺ ion solutions.