دورية أكاديمية
أعرض في EDS

Composite Activated Carbon Modified with AlCl3 for the Effective Removal of Reactive Black 5 Dye from Wastewaters

التفاصيل البيبلوغرافية
العنوان: Composite Activated Carbon Modified with AlCl3 for the Effective Removal of Reactive Black 5 Dye from Wastewaters
المؤلفون: Eleftheria K. Tsoutsa, Athanasia K. Tolkou, Ioannis A. Katsoyiannis, George Z. Kyzas
المصدر: Journal of Composites Science, Vol 7, Iss 6, p 224 (2023)
بيانات النشر: MDPI AG, 2023.
سنة النشر: 2023
المجموعة: LCC:Technology
LCC:Science
مصطلحات موضوعية: Reactive Black 5, activated carbon, adsorption, wastewater treatment, anthraquinone, aluminum, Technology, Science
الوصف: Many industries use huge amounts of synthetic dyes which may release into the wastewater in dyeing processes causing serious damage to aquatic life as they are recalcitrant, nonbiodegradable, stable to oxidizing agents, and toxic. Adsorption on activated carbon has been found to be a very efficient treatment method. In this work, a new adsorbent material composed of activated carbon and aluminum chloride (AC-Al) was prepared for the removal of a commercial anionic and anthraquinonic reactive dye, i.e., Reactive Black 5 (RB5) under various experimental conditions. Several parameters, such as the adsorbent’s dosage, initial RB5 concentration, pH, and contact time, were studied in order to determine the feasibility of AC-Al. According to the results, it was found that there was an increase in RB5 removal as the adsorbent’s dosage increased, especially, in pH 2 ± 0.1, where the removal rate increased, and reaching 100% by 1.0 g/L of AC-Al. Freundlich isotherm and pseudo-second-order kinetic models adequately fit the experimental data, indicating that favorable and heterogeneous adsorption occurred, closer to chemisorption. According to thermodynamics, it was found that the adsorption procedure was endothermic in nature (∆H0 = 62.621 kJ/mol) and spontaneous (∆G0 < 0), and according to the positive value of ∆S0 0.0293 (kJ/mol∙K), there is an increase in random interaction between solid and liquid interfaces. Finally, the AC-Al adsorbent was successfully regenerated and reused for four cycles.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2504-477X
Relation: https://www.mdpi.com/2504-477X/7/6/224; https://doaj.org/toc/2504-477X
DOI: 10.3390/jcs7060224
URL الوصول: https://doaj.org/article/aa8e49458e4c4a2e82790a6ad78aca02
رقم الأكسشن: edsdoj.8e49458e4c4a2e82790a6ad78aca02
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:2504477X
DOI:10.3390/jcs7060224