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Journal of Nanostructures، جلد ۹، شماره ۱، صفحات ۸۶-۹۳
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عنوان انگلیسی Porphyrin grafted magnetic nanopaticles as an eco-friendly, cost-effective catalyst for green oxidation of sulfides by meta-Chloro peroxy benzoic acid
چکیده انگلیسی مقاله In this paper, meso-Tetraphenylporphyrin iron(III) chloride complex, Fe(TPP)Cl, supported on magnetic nanoparticles (PCMNPs) was synthesized and characterized by HRTEM, SEM, TGA, and FT-IR and VSM. The value of saturation magnetic moments of MNPs and PCMNPs are 68.5 and 60.3 emu/g, respectively. The SEM and HRTEM image were shown the uniformity and spherical-like morphology of nanoparticles with an average diameter from ∼55 to 65 and and15 ± _5 nm, respectively The synthesized catalyst was successfully applied as a magnetically recoverable heterogeneous catalyst in oxidation of sulfides to related sulfoxides in water/ethanol as green solvents by meta-Chloro peroxy benzoic acid (m-CPBA). The selectivity and chemoselectivity of this clean system were attracted so much attention. No surfactants, additives, toxic reagents or organic solvents and by-product were involved. The maximum conversion and selectivity were attained at around neutral pH, which is advantageous for full-scale application. Ten successive cycles of catalyst was shown that the catalyst was most strongly anchored to the magnetic nanoparticles.
کلیدواژه‌های انگلیسی مقاله Green Chemistry, Oxidation, Water, Heterogeneous, Magnetic
نویسندگان مقاله Atena Naeimi |
Faculty of Science, Department of Chemistry, University of Jiroft, Jiroft, Iran

Mahdi Yoosefian |
Department of Chemistry, Graduate University of Advanced Technology, Kerman, Iran

نشانی اینترنتی http://jns.kashanu.ac.ir/article_82550_b8f2b7571c391d9b9033b182ce2b5a64.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/497/article-497-1530953.pdf
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