| Fiber Laser-Assisted Synthesis of Porous Carbon from Sodium Lignosulfonate for Preparing Carbon–Pt Nanocomposites |
| کد مقاله : 1299-ICOC |
| نویسندگان |
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بابک ژاله *1، علی صالح عزیز2، مریم خانی نور2 1گروه فیزیک-دانشکده علوم پایه-دانشگاه بوعلی سینا-همدان-ایران 2چهارباغ احمدی روشن-دانشگاه بوعلی سینا-دانشکده علوم پایه-گروه فیزیک |
| چکیده مقاله |
| Lignin valorization plays an essential role in advancing a sustainable materials economy and supporting the global transition toward renewable resources. As the second most abundant component of lignocellulosic biomass, lignin represents a major wood-derived waste stream with considerable potential for conversion into high-value materials. In this study, porous carbon was synthesized from sodium lignosulfonate using a fiber laser (1064 nm, RFLP30Q) operating at 20 kHz, 20 W, a scanning speed of 600 mm/s, and a pulse length of 100 ns. A 0.5 g sample of sodium lignosulfonate placed inside a glass vessel covered with a glass Petri dish was irradiated, during which its color gradually changed from brown to fully black within 30 min, indicating successful carbonization into porous carbon. Platinum (Pt) nanoparticles were subsequently produced by laser ablation in liquid (LAL) in an aqueous environment without the use of chemical reducing or stabilizing agents. The resulting Pt nanoparticles were uniformly dispersed onto the porous carbon through ultrasonic treatment followed by magnetic stirring, leading to the formation of the Carbon–Pt nanocomposite. The materials were characterized using XRD, FESEM, and FTIR techniques. The results confirm that the synthesized C/Pt nanocomposite exhibits high purity, well-defined crystalline features, and uniform deposition of Pt nanoparticles onto the porous carbon matrix. Based on these properties, the prepared nanocomposite shows strong potential for catalytic and sensing applications at room temperature [1,2]. |
| کلیدواژه ها |
| Sodium lignosulfonate, porous carbon, Fiber laser, Pt |
| وضعیت: پذیرفته شده |