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Study on Cost-Efficient Carbon Aerogel to Remove Antibiotics from Water Resources.
ACS Omega ( IF 3.7 ) Pub Date : 2020-06-28 , DOI: 10.1021/acsomega.0c01479 Gülgün Aylaz 1 , Meltem Okan 2 , Memed Duman 1 , Halil Murat Aydin 3
ACS Omega ( IF 3.7 ) Pub Date : 2020-06-28 , DOI: 10.1021/acsomega.0c01479 Gülgün Aylaz 1 , Meltem Okan 2 , Memed Duman 1 , Halil Murat Aydin 3
Affiliation
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Because of pharmaceutical-emerging contaminants in water resources, there has been a significant increase in the antibiotic resistance in bacteria. Therefore, the removal of antibiotics from water resources is essential. Various antibiotics have been greatly studied using many different carbon-based materials including graphene-based hydrogels and aerogels. In this study, carbon aerogels (CAs) were synthesized from waste paper sources and their adsorption behaviors toward three antibiotics (hygromycin B, gentamicin, and vancomycin) were investigated, for which there exist a limited number of reports in the literature. The prepared CAs were characterized with scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and micro-computerized tomography (μ-CT). According to the μ-CT results, total porosity and open porosity were calculated as 90.80 and 90.76%, respectively. The surface area and surface-to-volume ratio were found as 795.15 mm2 and 16.79 mm–1, respectively. The specific surface area of the CAs was found as 104.2 m2/g. A detailed adsorption study was carried out based on different pH values, times, and analyte concentrations. The adsorption capacities were found as 104.16, 81.30, and 107.52 mg/g for Hyg B, Gen, and Van, respectively. For all three antibiotics, the adsorption behavior fits the Langmuir model. The kinetic studies showed that the system fits the pseudo-second-order kinetic model. The production of CAs, within the scope of this study, is safe, facile, and cost-efficient, which makes these green adsorbents a good candidate for the removal of antibiotics from water resources. This study represents the first antibiotic adsorption study based on CAs obtained from waste paper.
中文翻译：
高成本效益的碳气凝胶去除水资源中抗生素的研究。
由于水资源中出现了药物污染，细菌中的抗生素耐药性显着增加。因此，从水资源中去除抗生素至关重要。使用许多不同的碳基材料，包括石墨烯基水凝胶和气凝胶，已经对各种抗生素进行了深入研究。在这项研究中，从废纸来源合成了碳气凝胶（CAs），并研究了它们对三种抗生素（潮霉素B，庆大霉素和万古霉素）的吸附行为，有关文献报道很少。通过扫描电子显微镜，透射电子显微镜，X射线光电子能谱和微型计算机断层扫描（μ-CT）对制备的CA进行表征。根据μ-CT结果，总孔隙率和开孔率分别计算为90.80和90.76％。表面积和表面积体积比为795.15毫米分别为2和16.79 mm –1。发现CA的比表面积为104.2m 2 / g。根据不同的pH值，时间和分析物浓度进行了详细的吸附研究。Hyg B，Gen和Van的吸附容量分别为104.16、81.30和107.52 mg / g。对于所有三种抗生素，其吸附行为均符合Langmuir模型。动力学研究表明，该系统符合伪二级动力学模型。在本研究范围内，CA的生产是安全，简便且具有成本效益的，这使得这些绿色吸附剂成为从水资源中去除抗生素的良好候选者。这项研究代表了第一项基于废纸中CA的抗生素吸附研究。
更新日期：2020-07-14
中文翻译：
高成本效益的碳气凝胶去除水资源中抗生素的研究。
由于水资源中出现了药物污染，细菌中的抗生素耐药性显着增加。因此，从水资源中去除抗生素至关重要。使用许多不同的碳基材料，包括石墨烯基水凝胶和气凝胶，已经对各种抗生素进行了深入研究。在这项研究中，从废纸来源合成了碳气凝胶（CAs），并研究了它们对三种抗生素（潮霉素B，庆大霉素和万古霉素）的吸附行为，有关文献报道很少。通过扫描电子显微镜，透射电子显微镜，X射线光电子能谱和微型计算机断层扫描（μ-CT）对制备的CA进行表征。根据μ-CT结果，总孔隙率和开孔率分别计算为90.80和90.76％。表面积和表面积体积比为795.15毫米分别为2和16.79 mm –1。发现CA的比表面积为104.2m 2 / g。根据不同的pH值，时间和分析物浓度进行了详细的吸附研究。Hyg B，Gen和Van的吸附容量分别为104.16、81.30和107.52 mg / g。对于所有三种抗生素，其吸附行为均符合Langmuir模型。动力学研究表明，该系统符合伪二级动力学模型。在本研究范围内，CA的生产是安全，简便且具有成本效益的，这使得这些绿色吸附剂成为从水资源中去除抗生素的良好候选者。这项研究代表了第一项基于废纸中CA的抗生素吸附研究。
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