![](/images/graphics-bg.png)
Remediation of Chlorpyrifos-Contaminated Soils by Laboratory-Synthesized Zero-Valent Nano Iron Particles : Effect of pH and Aluminium Salts
المؤلفون المشاركون
Reddy, K. Gangadhara
Madhavi, G.
Madhavi, V.
Reddy, A. Vijaya Bhaskar
المصدر
العدد
المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-7، 7ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-11-01
دولة النشر
مصر
عدد الصفحات
7
التخصصات الرئيسية
الملخص EN
Degradation of the insecticide chlorpyrifos in contaminated soils was investigated using laboratory synthesized zero-valent nano iron (ZVNI) particles.
The synthesized ZVNI particles were characterized as nanoscale sized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM).
The zero-valent state (Fe0) of iron was confirmed by EDAX analysis and the morphology of the ZVNI particles was studied by XRD.
Batch experiments were conducted by treating the chlorpyrifos contaminated soil with ZVNI, our results indicate that 90% of chlorpyrifos was degraded after 10 days of incubation.
Only 32% degradation was observed with micro zero-valent iron (mZVI) and no considerable degradation was attained without ZVNI.
The degradation of chlorpyrifos followed the first-order kinetics with a rate constant and a half-life of 0.245 day−1 and 2.82 days, respectively.
Degradation was monitored at two different pH values, that is, pH 10 and pH 4.
Chlorpyrifos degradation rate constant increased as the pH decreases from 10 to 4.
The corresponding rate constant and half-lives were 0.43 day−1 and 1.57days for pH 4, 0.18 day−1 and 3.65 days for pH 10.
In addition, an attempt was made by augmenting Al2(SO4)3 with ZVNI and it was found that the degradation rate of chlorpyrifos was greatly enhanced and the rate constant was rapidly increased from 0.245 day−1 to 0.60 day−1.
Hydrolysis and stepwise dechlorination pathway of chlorpyrifos with ZVNI was the dominant reaction.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Reddy, A. Vijaya Bhaskar& Madhavi, V.& Reddy, K. Gangadhara& Madhavi, G.. 2012. Remediation of Chlorpyrifos-Contaminated Soils by Laboratory-Synthesized Zero-Valent Nano Iron Particles : Effect of pH and Aluminium Salts. Journal of Chemistry،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-478316
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Reddy, A. Vijaya Bhaskar…[et al.]. Remediation of Chlorpyrifos-Contaminated Soils by Laboratory-Synthesized Zero-Valent Nano Iron Particles : Effect of pH and Aluminium Salts. Journal of Chemistry No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-478316
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Reddy, A. Vijaya Bhaskar& Madhavi, V.& Reddy, K. Gangadhara& Madhavi, G.. Remediation of Chlorpyrifos-Contaminated Soils by Laboratory-Synthesized Zero-Valent Nano Iron Particles : Effect of pH and Aluminium Salts. Journal of Chemistry. 2012. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-478316
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-478316
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
![](/images/ebook-kashef.png)
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر
![](/images/kashef-image.png)