Abu-Dalo Muna A, Al-Rawashdeh Nathir A F, Almurabi Moath, Abdelnabi Jehad, Al Bawab Abeer
Chemistry Department, Faculty of Science and Arts, Jordan University of Science and Technology, Irbid 22110, Jordan.
Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY 13699, USA.
Materials (Basel). 2023 Jan 29;16(3):1159. doi: 10.3390/ma16031159.
As the industry of olive oil continues to grow, the management of olive mill wastewater (OMW) by-products has become an area of great interest. While many strategies for processing OMW have been established, more studies are still required to find an effective adsorbent for total phenolic content uptake. Here, we present a composite of a Cu 1,4-benzene dicarboxylate metal-organic framework (Cu (BDC) MOF) and granular activated carbon (GAC) as an adsorbent for total phenolic content removal from OMW. Experimental results demonstrated that the maximum adsorption capacity was 20 mg/g of total phenolic content (TPC) after 4 h. using 2% wt/wt of GAC/Cu (BDC) MOF composite to OMW at optimum conditions (pH of 4.0 and 25 °C). The adsorption of phenolic content onto the GAC/Cu (BDC) MOF composite was described by the Freundlich adsorption and pseudo-second-order reaction. The adsorption reaction was found to be spontaneous and endothermic at 298 K where ΔS° and ΔH° were found to be 0.105 KJ/mol and 25.7 kJ/mol, respectively. While ΔGº value was -5.74 (kJ/mol). The results of this study provide a potential solution for the local and worldwide olive oil industry.
随着橄榄油行业的持续发展，橄榄油加工废水（OMW）副产品的管理已成为一个备受关注的领域。虽然已经建立了许多处理OMW的策略，但仍需要更多研究来找到一种有效的吸附剂以去除总酚含量。在此，我们提出一种由1,4-苯二甲酸铜金属有机框架（Cu(BDC)MOF）和颗粒活性炭（GAC）组成的复合材料，作为从OMW中去除总酚含量的吸附剂。实验结果表明，在最佳条件（pH为4.0和25°C）下，使用2%重量/重量的GAC/Cu(BDC)MOF复合材料处理OMW 4小时后，最大吸附容量为20毫克/克总酚含量（TPC）。酚含量在GAC/Cu(BDC)MOF复合材料上的吸附符合Freundlich吸附和准二级反应。发现在298K时吸附反应是自发的且吸热的，其中ΔS°和ΔH°分别为0.105千焦/摩尔和25.7千焦/摩尔。而ΔGº值为-5.74（千焦/摩尔）。本研究结果为当地和全球橄榄油行业提供了一个潜在的解决方案。
