طراحی فوتوکاتالیستهای چندمنظوره با g-C₃N₄ و کاربردهای آن در فناوری‌های پایدار
محورهای موضوعی : راه حل های موثر و قابل توسعه برای کنترل و حذف آلودگی های محیطیزهرا محمدپور کوسه لر 1 , زهره قاضی طباطبایی 2
1 - دانشجوی کارشناسی ارشد، گروه شیمی، واحد اهر، دانشگاه آزاد اسلامی، اهر، ایران
2 - استادیار گروه شیمی، واحد اهر، دانشگاه آزاد اسلامی، اهر، ایران
کلید واژه: نیترید کربن گرافیتی, فوتوکاتالیست ناهمگن, فناوری‌های پایدار, طراحی فوتوکاتالیست ,
چکیده مقاله :
فوتوکاتالیستهای ناهمگن در تبدیل و ذخیره انرژی، در سوخت‌های خورشیدی پایدار و سبز و همچنین در بسیاری از حوزه‌های زیست‌محیطی به‌عنوان یک فناوری نوین به‌کار می‌روند. فوتوکاتالیستهای نیترید کربن گرافیتی (g-C3N4) به دلیل ویژگیهای فیزیکوشیمیایی، نوری و الکتریکی منحصر به فرد خود، طیف خاصی از فوتوکاتالیستهای ناهمگن را تشکیل میدهند. در این مطالعه، مکانیسم‌های اصلی این فوتوکاتالیست‌ها، مزایا، چالش‌ها و طراحی فوتوکاتالیستهای مبتنی بر g-C3N4 مورد بررسی قرار گرفت. همچنین، خواص ساختاری، ویژگیهای فیزیکوشیمیایی سطح، پایداری سطح، همچنین خواص الکتروشیمیایی، فوتوالکتروشیمیایی و نوری آنها به تفصیل بررسی شد. همچنین، کاربردهای مهمی نظیر تخریب آلایندهها، کاهش دی‌اکسید کربن، برخی تبدیلات آلی و گندزدایی نیز مورد توجه قرار گرفت. با توجه به پیشرفت‌های برجسته این حوزه، انتظار می‌رود که فرصت‌های جدیدی برای طراحی و ساخت فوتوکاتالیستهای موثر مبتنی بر g-C3N4 برای کاربردهای مختلف فراهم شود.
Heterogeneous photocatalysts are utilized as a novel technology in energy conversion and storage, particularly in sustainable and green solar fuels, as well as in a variety of environmental applications. Graphitic carbon nitride (g-C₃N₄) photocatalysts form a specific group of heterogeneous photocatalysts due to their unique physicochemical, optical, and electrical properties. In this review, the fundamental mechanisms of heterogeneous photocatalysts, their advantages, challenges, and the design of g-C₃N₄-based photocatalysts are examined. The structural properties, surface physicochemical characteristics, surface stability, as well as their electrochemical, photoelectrochemical, and optical properties are highlighted. Key applications, such as pollutant degradation, carbon dioxide reduction, certain organic transformations, and disinfection, are also addressed. By reviewing significant advancements in this field, new opportunities for the design and fabrication of highly efficient g-C₃N₄-based photocatalysts for diverse applications are expected to arise.
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