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Clew-like Cu2O/CuO Microsphere Adsorbents for Highly Efficient Anionic Dye Removal
Langmuir ( IF 3.7 ) Pub Date : 2025-01-20 , DOI: 10.1021/acs.langmuir.4c04019
Shuyu Wang 1 , Xiaohui Wu 2 , Lijuan Ren 3 , Xian Pei 3 , Hui Fang 4 , Ping Lv 2 , Ning Nan 3 , Xianwei Lv 5 , Xianming Zheng 3 , Feihe Ma 2 , Yun Wu 3 , Yuping Liu 2 , Linqi Shi 1, 2
Langmuir ( IF 3.7 ) Pub Date : 2025-01-20 , DOI: 10.1021/acs.langmuir.4c04019
Shuyu Wang 1 , Xiaohui Wu 2 , Lijuan Ren 3 , Xian Pei 3 , Hui Fang 4 , Ping Lv 2 , Ning Nan 3 , Xianwei Lv 5 , Xianming Zheng 3 , Feihe Ma 2 , Yun Wu 3 , Yuping Liu 2 , Linqi Shi 1, 2
Affiliation
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Adsorbents with high selectivity and adsorption capacity are of significant interest for the removal of dye pollutants. Herein, we report a facile low-temperature solvothermal synthesis of clew-like Cu2O/CuO microspheres by using cupric acetate monohydrate as the copper resource and ethylene glycol as the solvent and morphology modulator. The synthesized Cu2O/CuO microspheres showed high selective adsorption to anionic dyes (e.g., methyl orange (MO) and Reactive Red 2 (RR2)) rather than to cationic dyes (e.g., methylene blue (MB), Rhodamine B (RhB)). MO was then selected to evaluate the parameters of adsorption due to the adsorbent exhibiting the highest adsorption capacity for MO. We demonstrate that the adsorption of MO by Cu2O/CuO microspheres has a good correlation with the pseudo-second-order model and Langmuir isotherm with a maximum adsorption capacity of 826.45 mg/g, which is higher than that of previously reported metal oxide material adsorbents. The excellent adsorption ability of clew-like Cu2O/CuO microspheres to MO may be attributed to the synergistic effects of electrostatic attraction, unique hierarchical structure, and crystal defects of the prepared Cu2O/CuO microspheres. We believe our work provides new insight into the synthesis of high-performance adsorbents.
中文翻译：
用于高效阴离子染料去除的类 Cu2O/CuO 微球吸附剂
具有高选择性和吸附能力的吸附剂对于去除染料污染物具有重要意义。在此，我们报道了一种以乙酸铜酸一水合物为铜资源，乙二醇为溶剂和形态调节剂的类似 Cu 2 O/CuO 微球的简单低温溶剂热合成。合成的 Cu 2 O/CuO 微球对阴离子染料（例如甲基橙 （MO） 和活性红 2 （RR2）））表现出高选择性吸附，而不是对阳离子染料（例如亚甲基蓝 （MB）、罗丹明 B （RhB））的选择性吸附。然后选择 MO 来评估吸附参数，因为吸附剂对 MO 表现出最高的吸附能力。我们证明Cu 2 O/CuO微球对MO的吸附与准二级模型和Langmuir等温线具有良好的相关性，最大吸附容量为826.45 mg/g，高于以前报道的金属氧化物材料吸附剂。clew-like Cu 2 O/CuO 微球对 MO 的优异吸附能力可能归因于所制备的 Cu 2 O/CuO 微球的静电吸引、独特的分层结构和晶体缺陷的协同作用。我们相信我们的工作为高性能吸附剂的合成提供了新的见解。
更新日期：2025-01-20
中文翻译：
用于高效阴离子染料去除的类 Cu2O/CuO 微球吸附剂
具有高选择性和吸附能力的吸附剂对于去除染料污染物具有重要意义。在此，我们报道了一种以乙酸铜酸一水合物为铜资源，乙二醇为溶剂和形态调节剂的类似 Cu 2 O/CuO 微球的简单低温溶剂热合成。合成的 Cu 2 O/CuO 微球对阴离子染料（例如甲基橙 （MO） 和活性红 2 （RR2）））表现出高选择性吸附，而不是对阳离子染料（例如亚甲基蓝 （MB）、罗丹明 B （RhB））的选择性吸附。然后选择 MO 来评估吸附参数，因为吸附剂对 MO 表现出最高的吸附能力。我们证明Cu 2 O/CuO微球对MO的吸附与准二级模型和Langmuir等温线具有良好的相关性，最大吸附容量为826.45 mg/g，高于以前报道的金属氧化物材料吸附剂。clew-like Cu 2 O/CuO 微球对 MO 的优异吸附能力可能归因于所制备的 Cu 2 O/CuO 微球的静电吸引、独特的分层结构和晶体缺陷的协同作用。我们相信我们的工作为高性能吸附剂的合成提供了新的见解。
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