酮洛芬
水溶液
萘普生
化学
弗伦德利希方程
吸附
活性炭
朗缪尔吸附模型
核化学
傅里叶变换红外光谱
色谱法
有机化学
化学工程
医学
替代医学
病理
工程类
作者
A. O. Arinkoola,Solomon Oluyemi Alagbe,Isreal Akinwole,Ayobami Ogundiran,Lawrence Boboye Ajayi,Oluseye Omotoso Agbede,O. O. Ogunleye
出处
期刊:Environmental Research, Engineering and Management
[Kaunas University of Technology (KTU)]
日期:2022-07-14
卷期号:78 (2): 28-37
被引量:5
标识
DOI:10.5755/j01.erem.78.2.29695
摘要
The use of commercial activated carbon (AC) to remove organic micropollutants from aqueous solution is expensive and unsustainable. In this study, coconut shell activated carbon (CSAC) was synthesized and applied for the removal of ibuprofen, ketoprofen and naproxen from aqueous solutions. The effects of carbonization and acid activation on the CSAC were studied using Fourier-transform infrared spectroscopy, scanning electron microscope, proximate and ultimate analyses. The influence of initial concentration (200–1000 mg/L), contact time (10–200 min), and temperature (30–60°C) was also investigated. The adsorptive capacity of CSAC for various pollutants was found to increase with concentration up to 150 min. Ibuprofen, ketoprofen and naproxen removal obeyed Langmuir (R2 = 0.9978), Temkin (R2 = 0.9551) and Freundlich (R2 = 0.9879) isotherm, respectively. The kinetic data obtained for various pollutants are best described by the pseudo-first-order model with correlation coefficient values in the range 0.96–0.99. The free energy ( G) values ranged between 1.0 and 9.0 kJ/mol for all the pollutants investigated. The mechanism of adsorption is physical, endothermic, and non-spontaneous. This study shows that CSAC is an effective alternative adsorbent for sequestering mixture of organic pollutants from aqueous solution.
科研通智能强力驱动
Strongly Powered by AbleSci AI