دورية أكاديمية
Novel Enzyme-Free Multifunctional Bentonite/Polypyrrole/Silver Nanocomposite Sensor for Hydrogen Peroxide Detection over a Wide pH Range
| العنوان: | Novel Enzyme-Free Multifunctional Bentonite/Polypyrrole/Silver Nanocomposite Sensor for Hydrogen Peroxide Detection over a Wide pH Range |
|---|---|
| المؤلفون: | Khouloud Jlassi, Mostafa H. Sliem, Kamel Eid, Igor Krupa, Mohamed M. Chehimi, Aboubakr M. Abdullah |
| المصدر: | Sensors, Vol 19, Iss 20, p 4442 (2019) |
| بيانات النشر: | MDPI AG, 2019. |
| سنة النشر: | 2019 |
| المجموعة: | LCC:Chemical technology |
| مصطلحات موضوعية: | bentonite clay, pyrrole, silver nanoparticles, h2o2 detection, Chemical technology, TP1-1185 |
| الوصف: | Precise designs of low-cost and efficient catalysts for the detection of hydrogen peroxide (H2O2) over wide ranges of pH are important in various environmental applications. Herein, a versatile and ecofriendly approach is presented for the rational design of ternary bentonite-silylpropyl-polypyrrole/silver nanoarchitectures (denoted as BP-PS-PPy/Ag) via the in-situ photo polymerization of pyrrole with salinized bentonite (BP-PS) in the presence of silver nitrate. The Pyrrolyl-functionalized silane (PS) is used as a coupling agent for tailoring the formation of highly exfoliated BP-PS-PPy sheet-like nanostructures ornamented with monodispersed Ag nanoparticles (NPs). Taking advantage of the combination between the unique physicochemical properties of BP-PS-PPy and the outstanding catalytic merits of Ag nanoparticles (NPs), the as-synthesized BP-PS-PPy/Ag shows a superior electrocatalytic reduction and high-detection activity towards H2O2 under different pH conditions (from 3 to 10). Intriguingly, the UV-light irradiation significantly enhances the electroreduction activity of H2O2 substantially, compared with the dark conditions, due to the high photoelectric response properties of Ag NPs. Moreover, BP-PS-PPy/Ag achived a quick current response with a detection limit at 1 μM within only 1 s. Our present approach is green, facile, scalable and renewable. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1424-8220 19204442 |
| Relation: | https://www.mdpi.com/1424-8220/19/20/4442; https://doaj.org/toc/1424-8220 |
| DOI: | 10.3390/s19204442 |
| URL الوصول: | https://doaj.org/article/e5b056f086fd4c21aa009ca24784ce12 |
| رقم الأكسشن: | edsdoj.5b056f086fd4c21aa009ca24784ce12 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 14248220 19204442 |
|---|---|
| DOI: | 10.3390/s19204442 |