سنتز نانو کامپوزیت مغناطیسی (MnFe2O4@SiO2@NH2 ) و اتصال آن با نانولوله های کربنی چند دیواره آسیل دار شده و شناسایی آن

نوع مقاله : علمی-پژوهشی

نویسندگان

1 تهران، پژوهشکده فن‌آوری‌های نوین علوم پزشکی جهاد دانشگاهی ـ ابن سینا، مرکز تحقیقات ریز فناوری زیستی

2 پژوهشکده توسعه صنایع شیمیایی جهاد دانشگاهی (ACECR)، البرز، ایران

چکیده

در این پژوهش، نانوذره ­های فریت منگنز ابر پارامغناطیسی با استفاده از روش هم رسوبی سنتز و برای جلوگیری از اکسایش و افزایش گروه­ های عاملی OH بر روی سطح، نانوذره ­های با تترا اورتو سیلیکات واکنش داده و پوشش سیلیکایی ایجاد شد. به منظور برقراری اتصال شیمیایی در واکنش‌های بعدی، سطح نانوذره ­ها به وسیله 3- آمینو پروپیل تری متوکسی سیلان (APTMS) پوشانده و عامل ­دار شد. همچنین نانولوله‌های کربنی چند جداره با قطر 8 نانومترخریداری و برای بالابردن ظرفیت واکنش پذیری با HNO3 و سپس تیونیل کلرید وارد واکنش شده و عامل­ دار شد. سرانجام نانوذره­ های مغناطیسی فریت منگنز دارای گروه عاملی آمینی با نانولوله­ های کربنی آسیل دار شده وارد واکنش شده و سنتز شدند. نانوذره ­های سنتز شده با استفاده از طیف سنجی تبدیل فوریه فرسرخ (FT-IR)، میکروسکوپ الکترونی روبشی (SEM)، میکروسکوپ‌­ ­الکترونی عبوری (TEM)، مغناطیس سنج نمونه مرتعش (VSM)، پراش پرتو ایکس (XRD) و طیف سنجی رامان (RAMAN) شناسایی و ویژگی‌های آن­ ها مورد بررسی قرار گرفت.

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