معالجة المياه العادمه باستخدام الاكسده الانوديه بواسطه قطب اوكسيد القصدير الاسطواني الدوار
DOI:
https://doi.org/10.22153/kej.2026.11.001الكلمات المفتاحية:
Anodic oxidation; Electrodeposition; Rotating cylinder electrode; Cu/SnO₂-Sb₂O₅; Methylene blueالملخص
يعد أكسيد القصدير بمثابة أنود واعد لاكسدة المركبات العضوية المقاومة للأكسدة وذلك كونه رخيص ولا ينتج تلوث ثانوي. في هذه الدراسة، تم تصنيع أنود Cu/SnO2-Sb2O5 عن طريق الترسيب الكاثودي في نظام دوار. تم دراسة تأثير سرعة دوران القطب على الخواص التركيبيه للأنود المحضر في المدى من 50 إلى 250 دورة في الدقيقة. تم فحص بنية وشكل الأنودات المحضرة عبر تقنيات SEM وXRD .
أظهرت النتائج أن أنود Cu/SnO2-Sb2O5 المحضر عند 250 دورة في الدقيقة له هيكل طلاء مدمج ومتعدد الطبقات بدون أي تشققات. تم فحص الأداء الكهروكيميائي لأنود Cu/SnO2-Sb2O5 عن طريق تحلل 100 ملجم/لتر من الميثيلين الأزرق عند 20 مللي أمبير/سم2 لمدة 4 ساعات. أظهرت النتائج أن الأنود المحضر عند 250 دورة في الدقيقة لديه القدرة على اكسدة صبغة الميثيلين الزرقاء بكفاءة 93.6% وهي أعلى من تلك التي تم الحصول عليها بواسطة الأنود المحضر عند 50 دورة في الدقيقة (85.18%). علاوة على ذلك، كان ثابت التفاعل من الدرجة الأولى (0.01258 min-1) وهو أعلى بمقدار 1.6 من المعدل الملحوظ للأنود المحضر عند 50 دورة في الدقيقة مما يؤكد أهمية الدوران في تعزيز انتقال الكتلة مما يؤدي إلى ترسب أكسيد القصدير مع النشاط التحفيزي العالي. أكدت النتائج أن أنود Cu/SnO2-Sb2O5 المحضر عند 250 دورة في الدقيقة يتمتع بعمر تشغيلي يبلغ 18 ساعة عند ظروف تشغيليه (0.5M NaOH؛ 200 مللي أمبير/سم2), في حين أن الأنود المحضر عند 50 دورة في الدقيقة يتمتع بعمر خدمة أقل (12 ساعة).
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