کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
175385 458909 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Visible light photodegradation of organic dyes, reduction of CrVI and catalytic oxidative desulfurization by a class of polyoxometalate-based inorganic-organic hybrid compounds
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Visible light photodegradation of organic dyes, reduction of CrVI and catalytic oxidative desulfurization by a class of polyoxometalate-based inorganic-organic hybrid compounds
چکیده انگلیسی


• A family of polyoxometalates-based hybrid compounds have been synthesized.
• The compounds exhibit an efficient photocatalysis for the removal of dyes.
• The oxidative desulfurization was investigated with the use of 1–4 as catalysts.

A new family of polyoxometalates-based inorganic–organic hybrid compounds, namely, [Ag4(H2O)(L)3(SiW12O40)] (1), [Zn(L)(H2O)]2[SiW12O40]·3H2O (2), [Cu(L)(H2O)]2[SiW12O40] (3), and [Cu2(L)2(HPWVI10WV2O40)]·4H2O (4), have been synthesized (L = 1,4–bis(3-(2-pyridyl)pyrazol)butane). This series of inorganic–organic hybrid compounds exhibit variable supramolecular architectures. The photodegradation of organic dyes malachite green and methylene blue with the use of compounds 1–4 as photocatalysts was studied under visible light irradiation. Strikingly, the photocatalytic result demonstrates that compound 1 is an efficient photocatalyst for the removal of malachite green and methylene blue. Remarkably, compound 1 serves as an active and recyclable photocatalyst for the reduction of CrVI with isopropanol as scavenger at ambient temperature. The catalytic oxidative desulfurization of thioanisole was also investigated with the use of compounds 1–4 as catalysts and tert-butyl hydroperoxide as oxidant. The catalytic results indicate that compounds 3 and 4 behave high catalytic performance for the oxidation of the thioanisole.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 133, October 2016, Pages 189–200
نویسندگان
, , , , , ,