کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4453960 1620817 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A case study of aggregation behaviors of titanium dioxide nanoparticles in the presence of dodecylbenzene sulfonate in natural water
ترجمه فارسی عنوان
مطالعه موردی رفتارهای تجمعی نانوذرات دی اکسید تیتانیوم در حضور دودسیبل بنزن سولفونات در آبهای طبیعی
کلمات کلیدی
دی اکسید تیتانیوم، نانوذرات، تجمع، داودسیبل بنزن سولفونات، آب طبیعی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست علوم زیست محیطی (عمومی)
چکیده انگلیسی

The present work aims to ascertain the mechanisms of surfactant (dodecylbenzene sulfonate; DBS) effects on the aggregation behaviors of TiO2 nanoparticles (TiO2-NPs) in natural water samples. Aggregation experiments were conducted at a TiO2-NPs concentration of 10 mg/L in deionized water and in natural water samples via dynamic light scattering and Zeta potential determination. Average attachment efficiency was calculated to compare the aggregation behaviors of nanoparticles in the two aqueous media. Results showed that the effects of DBS on aggregation could be interpreted by both Derjaguin–Landau–Verwey–Overbeek (DLVO) and non-DLVO mechanisms. In natural water samples, aggregation did not occur rapidly and was able to develop slowly under all conditions, and the roles of DBS were obvious at high DBS concentration owing to the impacts of inherent components of natural water samples, such as colloids and natural organic compounds. Future aggregation studies should concentrate on multi-factor, multi-colloidal and dynamic aspects under similar environmental conditions.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Sciences - Volume 36, 1 October 2015, Pages 84–92
نویسندگان
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