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Synthesis and Structure of a Copper-Based Functional Network for Efficient Organic Dye Adsorption
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2022-11-28 , DOI: 10.1021/acs.inorgchem.2c02817 Quanzhong Wang 1 , Hui Wang 1 , Xin Hu 1 , Zhiming Fan 1 , Yingyue Wang 1 , Pengtao Ma 1 , Jingyang Niu 1 , Jingping Wang 1
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2022-11-28 , DOI: 10.1021/acs.inorgchem.2c02817 Quanzhong Wang 1 , Hui Wang 1 , Xin Hu 1 , Zhiming Fan 1 , Yingyue Wang 1 , Pengtao Ma 1 , Jingyang Niu 1 , Jingping Wang 1
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In the work, by incorporating polyoxometalates (POMs) into a copper(II)-based network, a novel three-dimensional (3D) porous framework, [Cu17Cl3(trz)12]H3[GaW12O40]·9H2O (Cu-GaW-TRZ), was successfully prepared and explored for the adsorption of dyes. The adsorption capacity of Cu-GaW-TRZ was calculated as 13.11 mg/g, and the dye adsorption rate equaled 96.2% for the adsorption of methylene blue (MB). Furthermore, this recyclable adsorbent is stable enough without obvious loss of adsorption capacity for at least five runs. Meanwhile, the structure of the macropores is suitable for the entry of large molecular dyes, and [GaW12O40]5– also can achieve efficient adsorption for cationic dyes. The results displayed a pseudo-second-order kinetic model and were well matched for MB adsorption onto Cu-GaW-TRZ. The free energy, entropy, and enthalpy of the thermodynamic parameters for the adsorption of MB were calculated, which revealed that the adsorption process was befitting for the adsorption of MB.
中文翻译：
用于高效有机染料吸附的铜基功能网络的合成与结构
在这项工作中，通过将多金属氧酸盐 (POM) 结合到基于铜 (II) 的网络中，一种新型三维 (3D) 多孔骨架 [Cu 17 Cl 3 (trz) 12 ]H 3 [GaW 12 O 40 ]· 9H 2 O ( Cu-GaW-TRZ ), 被成功制备并探索了对染料的吸附。Cu-GaW-TRZ的吸附能力经计算为13.11 mg/g，染料对亚甲蓝（MB）的吸附率为96.2%。此外，这种可回收吸附剂足够稳定，至少运行 5 次后吸附能力没有明显损失。同时，大孔结构适合大分子染料的进入，[GaW 12 O 40 ] 5–也可以实现对阳离子染料的高效吸附。结果显示了伪二级动力学模型，并且与 MB 在Cu-GaW-TRZ上的吸附非常匹配。计算了吸附MB的热力学参数的自由能、熵和焓，表明该吸附过程适合MB的吸附。
更新日期：2022-11-28
中文翻译：
用于高效有机染料吸附的铜基功能网络的合成与结构
在这项工作中，通过将多金属氧酸盐 (POM) 结合到基于铜 (II) 的网络中，一种新型三维 (3D) 多孔骨架 [Cu 17 Cl 3 (trz) 12 ]H 3 [GaW 12 O 40 ]· 9H 2 O ( Cu-GaW-TRZ ), 被成功制备并探索了对染料的吸附。Cu-GaW-TRZ的吸附能力经计算为13.11 mg/g，染料对亚甲蓝（MB）的吸附率为96.2%。此外，这种可回收吸附剂足够稳定，至少运行 5 次后吸附能力没有明显损失。同时，大孔结构适合大分子染料的进入，[GaW 12 O 40 ] 5–也可以实现对阳离子染料的高效吸附。结果显示了伪二级动力学模型，并且与 MB 在Cu-GaW-TRZ上的吸附非常匹配。计算了吸附MB的热力学参数的自由能、熵和焓，表明该吸附过程适合MB的吸附。
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