سنتز و بررسي ويژگي هاي ساختاري و نوري و اثر فوتوكاتاليستي نانو كامپوزيت g-C3N4/Fe3O4 و نمونه g-C3N4

Synthesis and study of structural and optical properties and Photocatalyst effect of g-C3N4/Fe3O4 nanocomposite and g-C3N4

در قرن حاضر به دليل كم‌توجهي انسان‌ به محيط‌ زيست اين ميراث مهم و با ارزش، كره زمين در حال نابودي است. بي‌توجهي به محيط‌ زيست و اهميت آن اثرات جبران‌ ناپذيري همچون گرم‌تر شدن زمين، آلودگي هوا، انقراض گونه‌هاي مختلف گياهي و جانوري، آلودگي و كمبود منابع آبي و… را به وجود آورده است .در اين تحقيق با توجه به نياز روز افزون در زمينه تخريب رنگ ها و داروها در كاربرد هاي فوتوكاتاليستي، تصفيه آبهاي فاضلابي، فضايي براي تهيه نانو كامپوزيت g-C3N4/Fe3O4 ايجاد شده است. اين نانو كامپوزيت به دليل وجود g-C3N4 (نيتريد كربن گرافيتي) به عنوان يك نيمه رساناي پلي مري، ماده اي غير سمي و زيست سازگار و همينطور سنتز اين ماده به همراه نانو ذرات فريت هاي اسپينلي در زمينه هاي فوتوكاتاليستي پر كاربرد مي باشد. چون فريت آهن Fe3O4 يكي از مهم ترين و پركاربردترين ماده مغناطيسي است كه در آزمايشهاي علمي تحقيقاتي مورد توجه بسياري قرار گرفته است كه ويژگي هايي همچون زيست سازگاري مناسب و جداسازي آسان به دليل مغناطش نسبتا بالا دارد. در اينجا به بررسي خصوصيات ساختاري و نوري اين نانوكامپوزيت مي پردازيم كه به ترتيب با دستگاه هاي پراش پرتو ايكس، و طيف نور تابناكي مشخصه يابي مي گردد كه نتايج نشان مي دهد نانو كامپوريت حاصل خصوصيات بهتري نسبت به نمونه g-C3N4 دارد. همچنين در ادامه كار پژوهشي حاضر، به بررسي ميزان تخريب آلاينده اكسي تتراسايكلين با كاتاليست هاي g-C3N4 و g-C3N4/Fe3O4در فرآيند فوتوكاتاليستي مي پردازيم و متوجه مي شويم ميزان تخريب با نانو كامپوزيت حاصل بيشتر از كربن نيتريد گرافيتي است. In this century, due to the lack of attention of humans to the environment of this important and valuable heritage, the planet is being destroyed. Neglecting the environment and its environment can cause irreparable damage such as warming, climate, plant and animal species, consumption and water resources, etc. Dyes and drugs in photocatalytic applications, water purification, a space for the preparation of g-C3N4/Fe3O4 nanocomposite has been created. This nanocomposite is a non-toxic and biocompatible material due to the presence of g-C3N4 (carbon graphite nitride) as a polymeric semiconductor, as well as the synthesis of this material along with spinel ferrite nanoparticles for use in photocatalytic fields. Because iron ferrite Fe3O4 is one of the most important and widely used magnetic material, which has received much attention to scientific research experiments, which has features such as suitable biocompatibility and easy separation due to its relatively high magnetization. Here,we investigate the structural and optical properties of this nanocomposite, which are characterized by X-ray diffraction devices and photoluminescence respectively, and the results show that the resulting nanocomposite has better properties than the g-C3N4 sample. Also, in the continuation of the present research work, we investigate the degradation rate of oxytetracycline pollutant with g-C3N4 and g-C3N4/Fe3O4 catalysts in the photocatalytic process and we find that the degradation rate with the resulting nanocomposite is higher than graphite carbon nitride.

In this century, due to the lack of attention of humans to the environment of this important and valuable heritage, the planet is being destroyed. Neglecting the environment and its environment can cause irreparable damage such as warming, climate, plant and animal species, consumption and water resources, etc. Dyes and drugs in photocatalytic applications, water purification, a space for the preparation of g-C3N4/Fe3O4 nanocomposite has been created. This nanocomposite is a non-toxic and biocompatible material due to the presence of g-C3N4 (carbon graphite nitride) as a polymeric semiconductor, as well as the synthesis of this material along with spinel ferrite nanoparticles for use in photocatalytic fields. Because iron ferrite Fe3O4 is one of the most important and widely used magnetic material, which has received much attention to scientific research experiments, which has features such as suitable biocompatibility and easy separation due to its relatively high magnetization. Here,we investigate the structural and optical properties of this nanocomposite, which are characterized by X-ray diffraction devices and photoluminescence respectively, and the results show that the resulting nanocomposite has better properties than the g-C3N4 sample. Also, in the continuation of the present research work, we investigate the degradation rate of oxytetracycline pollutant with g-C3N4 and g-C3N4/Fe3O4 catalysts in the photocatalytic process and we find that the degradation rate with the resulting nanocomposite is higher than graphite carbon nitride.