Uranyl fluoride luminescence in acidic aqueous solutions

نویسندگان
چکیده

برای دانلود رایگان 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

Fluoride Removal from Aqueous Solutions by NaOH-Modified Eucalyptus Leaves

Introduction: Fluoride (F) and its compounds are widely used in industries in which fluoride overdose leads to various detrimental diseases. In this study the effect of NaOH-modified Eucalyptus leaves on fluoride removal from aqueous solutions as a natural adsorbent was investigated. Materials and Methods: The focus of this study was on the effects of parameters such as pH (2-12), initial conc...

متن کامل

Mechanism of fluoride uptake by hydroxyapatite from acidic fluoride solutions. I. Theoretical considerations.

It is well established that fluoride plays an important role in the prevention of dental caries. Fluoridation of drinking water has been a successful public health measure in reducing the prevalence of tooth decay.' Beneficial results have also ensued from incorporation of stannous fluoride into a dentifrice.2 Wellock and Brudevold3 and others4,5 have reported a reduction in carious surfaces, a...

متن کامل

Fluoride Removal from Aqueous Solutions by Cupricoxide Nanoparticles

ABSTRACT: Excess fluoride ion (F) in drinking water causes harmful effects such as dental and skeletal fluorosis. Hence, its concentration in drinking water must not exceed a certain range. This study investigated the removal of F from aqueous solutions with CuO nanoparticles using a range of experimental approaches, including pH, adsorbent dose, contact times, and initial F concentration. The ...

متن کامل

Complex formation of linear poly(methacrylic acid) with uranyl ions in aqueous solutions.

The complex formation of uranyl ions (UO(2+)2) with poly(methacrylic acid) (PMAA) was investigated by potentiometric, conductometric, UV-visible, luminescence and FTIR spectroscopic, and thermal analysis methods. The stoichiometric ratio at complexation between polymer and uranyl ions was found to be equal to 2 polymer base units per uranyl ion. FTIR spectra of the PMAA-UO(2+)2 complex confirme...

متن کامل

Fluoride release from fluoride varnishes under acidic conditions.

OBJECTIVE The aim was to investigate the in vitro fluoride release from fluoride varnishes under acidic conditions. STUDY DESIGN Poly(methyl methacrylate) blocks (Perspex, n=3 per group) were painted with 80 ± 5 mg fluoride varnish (n=10) and placed into artificial saliva for 30 min. Then, blocks were placed into either 1% citric acid (pH 2.27) or 0.3% citric acid (pH 3.75) solutions (n=3 per...

متن کامل

ذخیره در منابع من


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

ژورنال

عنوان ژورنال: Journal of Alloys and Compounds

سال: 1997

ISSN: 0925-8388

DOI: 10.1016/s0925-8388(96)02753-3