دانلود رایگان مقاله انگلیسی استفاده از نانوذرات نئودیمیم وانادات به عنوان یک کاتالیزور کارآمد برای افزایش تصفیه آب - الزویر 2019

عنوان فارسی
استفاده از نانوذرات نئودیمیم وانادات به عنوان یک کاتالیزور کارآمد برای افزایش تصفیه آب فتوکاتالیتی
عنوان انگلیسی
Utilizing of neodymium vanadate nanoparticles as an efficient catalyst to boost the photocatalytic water purification
صفحات مقاله فارسی
0
صفحات مقاله انگلیسی
16
سال انتشار
2019
نشریه
الزویر - Elsevier
فرمت مقاله انگلیسی
PDF
نوع مقاله
ISI
نوع نگارش
مقالات پژوهشی (تحقیقاتی)
رفرنس
دارد
پایگاه
اسکوپوس
کد محصول
E10746
رشته های مرتبط با این مقاله
شیمی، محیط زیست
گرایش های مرتبط با این مقاله
شیمی تجزیه، آب و فاضلاب
مجله
مجله مدیریت زیست محیطی - Journal of Environmental Management
دانشگاه
Institute of Nano Science and Nano Technology - University of Kashan - Iran
کلمات کلیدی
NdVO4، نانوساختارها، Eriochorome سیاه T، تخریب فوتوکاتالیستی نانو کاتالیزور، بازیافت
doi یا شناسه دیجیتال
https://doi.org/10.1016/j.jenvman.2018.09.080
۰.۰ (بدون امتیاز)
امتیاز دهید
چکیده

ABSTRACT


Neodymium Vanadate (NdVO4) nanostructures were successfully synthesized via a modified solid state method in the presence of ligand. These nanoparticles were further used as a photocatalyst. Primarily the best structural formations and smallest crystallite sizes of the systems were identified and optimized by changing the calcination time, calcination temperature and molar ratio of the ligand. The cationic (Methyl Violet (MV)), and anionic (Eosin Y (EY) and Eriochrome Black T (EBT)) dyes were used as a model to evaluate the photoactivity under UV–Vis irradiation. Several operational factors were examined to improve the photocatalytic efficiency include type of dye, type of light source, pH and dye concentration. As a result, the best efficiency in 5 ppm Eriochorome Black T at pH = 11 was achieved in the presence of 0.05 g NdVO4 nanocatalysts.

نتیجه گیری

Conclusion


The aim of this project was to assess favorable nano-photocatalysts with uniform and small size. For this reason, H2acacen was used as a capping agent to prevent agglomeration of products in the solid state process. Several parameters were compared to reach optimum size and uniformity of as-made samples. These factors include calcination time, calcination temperature, and molar ratio of H2acacen. The best size of particle is achieved when ratio of H2acacen to Nd was 2:1 and calcined at 700 °C for 2 h. The influence of different parameters such as type of dye, type of light source, pH and dye concentration on photocatalytic activity of samples were investigated. So, the prepared catalyst shows 77.98% photocatalytic efficiency in degradation of 5 ppm Eriochorome Black T under UV light at pH = 11 which can be promising material to improve the catalytic performance for contaminant. Our findings suggest that the NdVO4 nanoparticles is a potential nano-photocatalysts for dye removal from waste water. Thus, our belief is that the nanosized NdVO4 nanoparticles can be used as a promising photocatalysts in various industries.


بدون دیدگاه