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Simultaneous scavenging of persistent pharmaceuticals with different charges by activated carbon fiber from aqueous environments.
Chemosphere ( IF 8.1 ) Pub Date : 2020-01-14 , DOI: 10.1016/j.chemosphere.2020.125909 Yufeng Zhao 1 , Chul-Woong Cho 2 , Dongfang Wang 3 , Jong-Won Choi 4 , Shuo Lin 4 , Yeoung-Sang Yun 4
Chemosphere ( IF 8.1 ) Pub Date : 2020-01-14 , DOI: 10.1016/j.chemosphere.2020.125909 Yufeng Zhao 1 , Chul-Woong Cho 2 , Dongfang Wang 3 , Jong-Won Choi 4 , Shuo Lin 4 , Yeoung-Sang Yun 4
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The adsorptive removal possibility of persistent pharmaceuticals with different charges by activated carbon fiber (ACF) was examined. The pharmaceuticals tested included carbamazepine (CBZ), propranolol (PRO), and diclofenac (DCF), in neutral, cationic, and anionic forms, respectively, which were frequently detected in sewage. The adsorption characteristics of ACF were identified according to the kinetics, isotherm, pH, and ionic strength experiments. The results revealed that ACF can effectively remove these pharmaceuticals, and the adsorption capacities of CBZ, PRO, and DCF by ACF were 1.27 ± 0.06, 1.07 ± 0.08, and 0.95 ± 0.08 mmol g-1, respectively. Moreover, the adsorption of ACF for CBZ was independent of pH and ionic strength, whereas that of anionic diclofenac decreased at alkaline pHs and high concentrations of NaCl. Using a syringe system packed with ACF mat, the scavenging ability of intermittently generated secondary sewage was evaluated. As a result, the residual concentration of PRO and CBZ could not be even detected after consecutive 10 runs in secondary sewage mixture solution. This indicates ACF has the powerful potential for removing pharmaceutical micropollutants in the actual aqueous solutions. FTIR and XPS analyses showed that hydrophobic and π-π interactions and hydrogen bonding contributed to the adsorption process.
中文翻译：
通过水性环境中的活性炭纤维同时清除具有不同电荷的持久性药物。
研究了活性炭纤维（ACF）对具有不同电荷的持久性药物的吸附去除可能性。测试的药物分别包括中性，阳离子和阴离子形式的卡马西平（CBZ），普萘洛尔（PRO）和双氯芬酸（DCF），它们经常在污水中被检测到。根据动力学，等温线，pH和离子强度实验确定了ACF的吸附特性。结果表明，ACF可以有效去除这些药物，ACF对CBZ，PRO和DCF的吸附容量分别为1.27±0.06、1.07±0.08和0.95±0.08 mmol g-1。此外，ACF对CBZ的吸附与pH和离子强度无关，而阴离子双氯芬酸在碱性pH和高浓度的NaCl时则降低。使用装有ACF垫的注射器系统，对间歇性产生的二次污水的清除能力进行了评估。结果，在次级污水混合溶液中连续运行10次后，甚至都无法检测到PRO和CBZ的残留浓度。这表明ACF具有去除实际水溶液中药物微污染物的强大潜力。FTIR和XPS分析表明，疏水和π-π相互作用以及氢键有助于吸附过程。这表明ACF具有去除实际水溶液中药物微污染物的强大潜力。FTIR和XPS分析表明，疏水和π-π相互作用以及氢键有助于吸附过程。这表明ACF具有去除实际水溶液中药物微污染物的强大潜力。FTIR和XPS分析表明，疏水和π-π相互作用以及氢键有助于吸附过程。
更新日期：2020-01-14
中文翻译：
通过水性环境中的活性炭纤维同时清除具有不同电荷的持久性药物。
研究了活性炭纤维（ACF）对具有不同电荷的持久性药物的吸附去除可能性。测试的药物分别包括中性，阳离子和阴离子形式的卡马西平（CBZ），普萘洛尔（PRO）和双氯芬酸（DCF），它们经常在污水中被检测到。根据动力学，等温线，pH和离子强度实验确定了ACF的吸附特性。结果表明，ACF可以有效去除这些药物，ACF对CBZ，PRO和DCF的吸附容量分别为1.27±0.06、1.07±0.08和0.95±0.08 mmol g-1。此外，ACF对CBZ的吸附与pH和离子强度无关，而阴离子双氯芬酸在碱性pH和高浓度的NaCl时则降低。使用装有ACF垫的注射器系统，对间歇性产生的二次污水的清除能力进行了评估。结果，在次级污水混合溶液中连续运行10次后，甚至都无法检测到PRO和CBZ的残留浓度。这表明ACF具有去除实际水溶液中药物微污染物的强大潜力。FTIR和XPS分析表明，疏水和π-π相互作用以及氢键有助于吸附过程。这表明ACF具有去除实际水溶液中药物微污染物的强大潜力。FTIR和XPS分析表明，疏水和π-π相互作用以及氢键有助于吸附过程。这表明ACF具有去除实际水溶液中药物微污染物的强大潜力。FTIR和XPS分析表明，疏水和π-π相互作用以及氢键有助于吸附过程。
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