Chemistry Department, Western Mindanao State University, Zamboanga City 7000, Philippines.
Department of Chemistry, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines.
Int J Mol Sci. 2024 Oct 11;25(20):10929. doi: 10.3390/ijms252010929.
This study introduces a novel approach to addressing environmental issues by developing fish-scale carbon nanoparticles (FSCNPs) with a wide range of colors from discarded fish scales. The process involves hydrothermally synthesizing raw tamban (Sardinella) fish scales sourced from Universal Canning, Inc. in Zamboanga City, Philippines. The optimization of the synthesis was achieved using the response surface methodology with a Box-Behnken design. The resulting FSCNPs exhibited unique structural and chemical properties akin to carbonized polymer dots, enhancing their versatility. The solid-state fluorescence of these nanoparticles can be modulated by varying their concentration in a polyvinylpyrrolidone matrix, yielding colors such as blue, green, yellow, and red-orange with Commission Internationale de l'Eclairage coordinates of (0.23, 0.38), (0.32, 0.43), (0.37, 0.43), and (0.46, 0.48), respectively. An analysis of the luminescence mechanism highlights cross-linking emissions, aggregation-induced emissions, and non-covalent interactions, which contribute to concentration-dependent fluorescence and tunable emission colors. These optical characteristics suggest that FSCNPs have significant potential for diverse applications, particularly in opto-electronic devices.
本研究提出了一种通过开发具有广泛颜色的鱼鳞片碳纳米粒子（FSCNPs）来解决环境问题的新方法，这些颜色是从废弃的鱼鳞片中获得的。该过程涉及在水热条件下合成源自菲律宾三宝颜市环球罐头公司的粗鲷（Sardinella）鱼鳞片。通过 Box-Behnken 设计的响应面法对合成过程进行了优化。所得的 FSCNPs 表现出与碳化聚合物点类似的独特结构和化学性质，增强了其多功能性。这些纳米粒子的固态荧光可以通过改变它们在聚乙烯吡咯烷酮基质中的浓度来进行调节，从而产生蓝色、绿色、黄色和橙红色等颜色，其国际照明委员会坐标分别为（0.23, 0.38）、（0.32, 0.43）、（0.37, 0.43）和（0.46, 0.48）。对发光机制的分析强调了交联发射、聚集诱导发射和非共价相互作用，它们有助于浓度依赖性荧光和可调发射颜色。这些光学特性表明 FSCNPs 在各种应用中具有重要的潜力，特别是在光电设备中。
