HYDROTHERMAL SYNTHESIS OF YTTRIUM ORTHOVANADATE (YVO4) AND ITS APPLICATION IN PHOTO CATALYTIC DEGRADATION OFSEWAGE WATER

نویسندگان

  • K. S. Hui
  • P. Karimi
چکیده مقاله:

Abstract: (Y2O3) and ethyl acetate as a mineralizer by hydrothermal method at a low temperature (T=.230°C, andP=100bars).The as-prepared powders were characterized by X-ray Diffraction (XRD), Fourier Transform InfraredSpectroscopy (FTIR), Scanning Electron Microscopy (SEM), UV-V Spectroscopy and Chemical Oxygen Demand(COD) of the sewage water, respectively. The results show that hydrothermal method can greatly promote thecrystallization and growth of YVO4 phase. XRD pattern clearly indicates the tetragonal structure and crystallanity. AnFTIR spectrum of the YVO4 shows the presence of Y-O and V-O bond, respectively. The presence of these two peaksindicates that yttrum vanadate has been formed. UV-V is absorption spectra suggesting that YVO4 particles havestronger UV absorption than natural sunlight and subsequent photocatalytic degradation data also confirmed theirhigher photocatalytic activity.In this paper, YVO4 powder was successfully synthesized from Vanadium Pentaoxide (V2O5), Yttrium Oxide

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

extraction and characterization of allium irancum plant extract and its application in the green synthesis of silver nano particles and oxidation of thiocarbony1 compounds

سنتز سبز نانوذرات فلزی (nps) درسالهای اخیر توجه بسیارزیادی را به خود جلب کرده است. زیرا این پروتوکل کم هزینه وسازگار با محیط زیست از روش های استاندارد سنتز. در این پایان نامه ما گزارش میکنیم یک روش ساده و سازگار با محیط زیست برای سنتز نانوذرات نقره با استفاده از محلول آبی عصاره گیاه allium iranicum به عنوان یک عامل کاهش دهنده ی طبیعی. نانو ذرات نقره مشخص شد با استفاده از تکنیک های uv-visible، x...

Green synthesis, characterization, and photo catalytic degradation efficiency of Trimanganese Tetroxide nanoparticle

Mn3O4 nanoparticles has been synthesised from Manganese (II) acetate and Simarouba Glauca leaf extract using microwave heating. This novel method of synthesis of Mn3O4 is fast, low-cost, non-toxic and environment friendly. The synthesised product was characterised by powder X-ray diffraction(XRD),Fourier transform infrared spectroscopy( FT-IR), Ultraviolet-Visible spectroscopy( UV-Visible), X-r...

متن کامل

Microwave-assisted Synthesis of MgFe2O4-ZnO Nanocomposite and Its Photo-catalyst Investigation in Methyl Orange Degradation

In this work firstly MgFe2O4 nanoparticles were synthesized via a microwave-assisted method. The product was calcinated at 900 ºC for 2h. At the second step zinc oxide shell was synthesized on the ferrite under ultrasonic waves. Properties of the product were examined by X-ray diffraction pattern (XRD), scanning electron microscope (SEM) and Fourier transform infrared (FT-IR) spectroscopy. Vibr...

متن کامل

comparison of catalytic activity of heteropoly compounds in the synthesis of bis(indolyl)alkanes.

heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...

15 صفحه اول

Hydrothermal preparation of silver telluride nanostructures and photo-catalytic investigation in degradation of toxic dyes

Different morphologies of Ag2Te nanostructures were synthesized using TeCl4 as a new precursor and hydrazine hydrate as reducing agent by a hydrothermal method. Various parameters that affect on morphology and purity of nanostructures were optimized. According to our experiments the best time and temperature for preparation of this nanostructure are 12 h and 120 °C. The photo-catalytic behaviou...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ذخیره در منابع من قبلا به منابع من ذحیره شده

{@ msg_add @}


عنوان ژورنال

دوره 7  شماره 3

صفحات  25- 30

تاریخ انتشار 2010-08

با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.

کلمات کلیدی

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023