Key Lab of Groundwater Resources and Environment (Ministry of Education), Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, 2519 Jiefang Road, Changchun 130021, PR China.
School of Municipal and Environmental Engineering, Jilin Jianzhu University, 5088 Xincheng Street, Changchun 130118, PR China.
J Hazard Mater. 2021 Jul 15;414:125473. doi: 10.1016/j.jhazmat.2021.125473. Epub 2021 Feb 25.
Three novel (Fe-Eu) JLUE-MOGs were successfully fabricated through a solvothermal method and employed to construct the double-effect system for antibiotics adsorption and detection. The characterizations highlighted the properties of ample active sites, large surface areas and hierarchical porous structures, which did contribute to superb and rapid chlortetracycline hydrochloride (CTC) adsorption by JLUE-MOGs. Besides, the effects of initial pH values, JLUE-MOG dosages and co-existing inorganic ions on the CTC adsorption could be explained by pore filling, π-π EDA interaction, electrostatic interaction, water affinity as well as hydrogen bonding. Moreover, the optimized condition was cross-explored by response surface methodology (RSM) with tiny differences compared to actual experiments. In addition, fluorescent JLUE-MOG-7 was implemented for sensitive recognition of CTC and reflecting adsorption processes. Furthermore, shaping JLUE-MOG-7@cellulose aerogels were fabricated as filter materials for applying into an adsorption bed. The breakthrough process was fitted well by Bohart-Adams model and Thomas model, along with recognizable fluorescence changes of immobilized adsorbents. This work develops efficient and luminescent powder-like JLUE-MOGs for antibiotics adsorptive enrichment and sensitive detection. More importantly, immobilized JLUE-MOG@cellulose aerogels, as promising and alternative adsorbents with real-time fluorescence changes, can be utilized for continuously pollutants removal in real wastewater treatment.
三种新型（Fe-Eu）JLUE-MOGs 通过溶剂热法成功制备，并用于构建抗生素吸附和检测的双重效应体系。表征突出了丰富的活性位点、大的表面积和分级多孔结构的特性，这有助于 JLUE-MOGs 对盐酸金霉素（CTC）的高效快速吸附。此外，初始 pH 值、JLUE-MOG 剂量和共存无机离子对 CTC 吸附的影响可以通过孔填充、π-π EDA 相互作用、静电相互作用、水亲和力和氢键来解释。此外，优化条件通过响应面法（RSM）进行了探索，与实际实验相比仅存在微小差异。此外，荧光 JLUE-MOG-7 用于敏感识别 CTC 并反映吸附过程。此外，将 JLUE-MOG-7@纤维素气凝胶成型为过滤材料，用于吸附床。突破过程通过 Bohart-Adams 模型和 Thomas 模型拟合良好，同时固定化吸附剂的荧光变化明显。这项工作开发了高效且发荧光的粉末状 JLUE-MOGs，用于抗生素的吸附富集和敏感检测。更重要的是，固定化 JLUE-MOG@纤维素气凝胶作为具有实时荧光变化的有前途和替代吸附剂，可以用于实际废水处理中的连续污染物去除。
