دورية أكاديمية
أعرض في EDS

Hydroxyapatite Growth on Activated Carbon Surface for Methylene Blue Adsorption: Effect of Oxidation Time and CaSiO3 Addition on Hydrothermal Incubation

التفاصيل البيبلوغرافية
العنوان: Hydroxyapatite Growth on Activated Carbon Surface for Methylene Blue Adsorption: Effect of Oxidation Time and CaSiO3 Addition on Hydrothermal Incubation
المؤلفون: Anastasio Moreno-Santos, Jorge Carlos Rios-Hurtado, Sergio Enrique Flores-Villaseñor, Alma Graciela Esmeralda-Gomez, Juanita Yazmin Guevara-Chavez, Fatima Pamela Lara-Castillo, Griselda Berenice Escalante-Ibarra
المصدر: Applied Sciences, Vol 13, Iss 1, p 77 (2022)
بيانات النشر: MDPI AG, 2022.
سنة النشر: 2022
المجموعة: LCC:Technology
LCC:Engineering (General). Civil engineering (General)
LCC:Biology (General)
LCC:Physics
LCC:Chemistry
مصطلحات موضوعية: activated carbon, CaSiO3, oxidation, hydroxyapatite, methylene blue, adsorption, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999
الوصف: Many adsorbent materials are now commercially available; however, studies have focused on modifying them to enhance their properties. In this study, an activated carbon (AC) and hydroxyapatite (HAp) composite was synthesized by the immersion of ACs in a simulated body fluid solution, varying the AC oxidation degree along with the addition of CaSiO3. The resulting composites were characterized by ash %, X-ray fluorescence (XRF), Fourier-transformed infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and point of zero charge (PZC). The characterization results indicated that the addition of CaSiO3 and the oxygenated functional groups in the AC surface are key factors for HAp growth. The composites were tested on methylene blue (MB) adsorption as a potential application for the synthesized materials. Adsorption isotherms were modeled with Langmuir and Freundlich isotherms, and the composites were fitted to a Langmuir model with the highest qmax value of 9.82. The kinetic results indicated that for the pseudo-second-order model, the composites fitted, with a contact time of 180 min to remove a 95.61% average of the MB. The results indicate that composite materials can be an efficient adsorbent for the removal of MB from aqueous solutions at low concentrations since the material with the highest amount of HAp growth removed 99.8% of the MB in 180 min.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 13010077
2076-3417
Relation: https://www.mdpi.com/2076-3417/13/1/77; https://doaj.org/toc/2076-3417
DOI: 10.3390/app13010077
URL الوصول: https://doaj.org/article/df4ae2bb38db48409749be867c3fd66b
رقم الأكسشن: edsdoj.f4ae2bb38db48409749be867c3fd66b
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:13010077
20763417
DOI:10.3390/app13010077