فلز واسطه ذوب شده TiO2 با واسط تخریب فوتوکاتالیستی داروی ضد التهاب
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فلز واسطه ذوب شده TiO2 با واسط تخریب فوتوکاتالیستی داروی ضد التهاب

عنوان فارسی مقاله: فلز واسطه دوپ شده TiO2 با واسط تخریب فوتوکاتالیستی داروی ضد التهاب تحت تشعشعات خورشیدی
عنوان انگلیسی مقاله: Transition metal doped TiO2 mediated photocatalytic degradation of anti-inflammatory drug under solar irradiations
مجله/کنفرانس: Journal of Environmental Chemical Engineering
رشته های تحصیلی مرتبط: شیمی، داروسازی
گرایش های تحصیلی مرتبط: شیمی محیط زیست، شیمی دارویی، فارماکولوژی
کلمات کلیدی فارسی: فوتوکاتالیز، دوپ شده، ایبوپروفن، Bi-TiO، Ni-TiO2، اشعه خورشید
کلمات کلیدی انگلیسی: Photocatalysis, Doped, Ibuprofen, Bi-TiO2; Ni-TiO2, solar irradiation
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
نمایه: Scopus - Master Journals - JCR
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.jece.2016.01.032
دانشگاه: School of Energy and Environment, Thapar University, Patiala 147004, India
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2016
ایمپکت فاکتور: 3.740 در سال 2017
شاخص H_index: 37 در سال 2019
شاخص SJR: 0.924 در سال 2017
شناسه ISSN: 2213-3437
شاخص Quartile (چارک): Q1 در سال 2017
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 26
وضعیت ترجمه: ترجمه نشده است
قیمت مقاله انگلیسی: رایگان
آیا این مقاله بیس است: خیر
کد محصول: E11791
فهرست انگلیسی مطالب

Outline


Abstract


1- Introduction


2- Experimental


3- Results and discussion


4- Conclusion


References

نمونه متن انگلیسی مقاله

Abstract


Bismuth (Bi) and Nickel (Ni) Doped Titanium Dioxide (TiO2) nanoparticles were synthesized by sol–gel method and the prepared nanoparticles were characterized by X-Ray Diffraction, Scanning Electron Microscope, UV–vis reflectance spectroscopy and Brunauer–Emmett–Teller (BET) analysis. The concentration of dopant in synthesized catalysts was varied from 0.25 to 1.0 wt%. Maximum BET surface area of 47.8 and 45.7 m2/g was observed with 0.25 wt% Bi–TiO2 and 0.5 wt% Ni–TiO2, respectively. EDX analysis has established the presence of 0.21% Bi ions and 0.36% Ni ions in 0.25 wt% Bi doped TiO2 and 0.5 wt% Ni doped TiO2, respectively. Band gap of Bi–TiO2 (0.25 wt%) and Ni–TiO2 (0.5 wt%) was obtained to be 2.99 eV, which is found to be minimum among the various synthesized catalysts. The photocatalytic activity of synthesized catalysts were tested and compared with Degussa TiO2 for degradation of Ibuprofen (IBP) as a model compound. Bi–TiO2 nanoparticles revealed higher photocatalytic activity when compared to Ni–TiO2 or Degussa TiO2 under solar irradiation, which may be attributed to increase in specific surface area, and decrease in the crystallite size. Maximum of 89% degradation was achieved with 0.25% Bi–TiO2 photocatalyst under 6 h of illuminations with a solar light, whereas, 78% degradation has been achieved under similar experimental condition with Ni doped TiO2. The kinetics of the degradation of IBP has been explained in terms of the Langmuir–Hinshelwood model and was found to follow first order kinetics with k value of 0.0064 and 0.0046 min−1 with Bi and Ni doped TiO2, respectively.


Introduction


The existence of pharmaceuticals compounds and its residues has been reported frequently in literature (Melo et al. 2009; Halling-Sorensen et al. 1998) thus, receiving increasing attention as an emerging environmental issue. Numerous pharmaceutical compounds have been noticed in household wastewater, natural water bodies and groundwater in many countries all over the world. The Presence of pharmaceutical compounds can cause severe environmental issues due to the chemical toxicity of the lively constituents in the formulations and sometimes, of their disintegration products. Ibuprofen [IBP] is one of the most commonly consumed medicines worldwide, mainly due to its use as a pain reliever. Concentration of IBP in the environment has been stated between 10ng/L to 169µg/L (Santos et al. 2007). Sources of these contaminants are primarily the domestic waste water due to excretion of non-metabolized drugs by animal or human urine and feces. Conventional treatment processes functional at sewage treatment plants are not efficient in removing such pharmaceutical substances by various physical or biological treatment steps. Therefore, alternative and effective treatment methods need to be explored for the degradation of such pharmaceutical compounds.

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