Electrodeposition of Ag/ZIF-8-Modified Membrane for Water Remediation.
Electrodeposition of Ag/ZIF-8-Modified Membrane for Water Remediation.
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DOI：
10.1021/acs.langmuir.2c02947
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发表时间：
2023-02-14
期刊：
影响因子：
3.9
通讯作者：
Tian, Fangyuan
中科院分区：
文献类型：
--
作者：
Rodriguez, Ricky;Palma, Miguel S.;Bhandari, Deepali;Tian, Fangyuan
金属有机骨架膜由于其多孔结构和可调的组成而被广泛应用于气体和液体分离。根据客体组分，异质结构的M0 F可以表现出多种功能。本论文采用“绿色”电沉积法，在不锈钢丝网（SSM）上制备了ZIF-8（ZIF-8）和银纳米粒子掺杂ZIF-8（Ag/ZIF-8）基膜。SSM首先涂覆有Zn镀层，该Zn镀层主要包含具有“叶状”形态的氢氧化锌硝酸盐（Zn 5（OH）8（NO3）2·2 H2O），为ZIF-8和Ag/ZIF-8的沉积提供锚定点。在不使用强碱的情况下，在水性条件下制备Zn 5（OH）8（NO3）2·2 H2O的均匀涂层仅需10分钟;这是迄今为止制备氢氧化锌硝酸盐纳米晶体的最有效方法。在类似的电沉积方法之后，可以通过施加小电流在20分钟内制备ZIF-8和Ag/ZIF-8涂覆的SSM。Ag的包封不会改变ZIF-8的化学组成或晶体结构。已经测试了所得ZIF-8和Ag/ZIF-8涂覆的SSM在快速真空过滤设置中对罗丹明B染料去除的有效性。此外，E.在用Ag/ZIF-8-包被的SSM孵育过夜后，大肠杆菌的表达被显著抑制。总的来说，我们展示了一种快速合成方法来制备ZIF-8和Ag/ZIF-8涂覆的SSM膜，用于去除有机染料，具有优异的抗微生物活性。
Metal–organic framework (MOF)-based membranes have been widely used in gas and liquid separation due to their porous structures and tunable compositions. Depending on the guest components, heterostructured MOFs can exhibit multiple functions. In the present work, we report a facile and rapid preparation of zeolitic imidazolate framework-8 (ZIF-8) and silver nanoparticle incorporated ZIF-8 (Ag/ZIF-8)-based membranes on stainless-steel mesh (SSM) through a “green” electrodeposition method. The SSM was first coated with a Zn-plated layer which contains mainly zinc hydroxide nitrate (Zn5(OH)8(NO3)2·2H2O) with a “leaf-like” morphology, providing anchoring points for the deposition of ZIF-8 and Ag/ZIF-8. It takes only 10 min to prepare a uniform coating of Zn5(OH)8(NO3)2·2H2O in aqueous conditions without the use of a strong base; this is by far the most efficient way of making zinc hydroxide nitrate nanocrystals. Following a similar electrodeposition approach, ZIF-8 and Ag/ZIF-8-coated SSM can be prepared within 20 min by applying a small current. The encapsulation of Ag does not alter the chemical composition nor the crystal structure of ZIF-8. The resulting ZIF-8 and Ag/ZIF-8-coated SSM have been tested for their effectiveness for rhodamine B dye removal in a fast vacuum filtration setting. Additionally, growth of E. coli was significantly inhibited after overnight incubation with Ag/ZIF-8-coated SSM. Overall, we demonstrate a fast synthesis procedure to make ZIF-8 and Ag/ZIF-8-coated SSM membranes for organic dye removal with excellent antimicrobial activity.
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影响因子：
5.2
作者：
First, Eric L.;Floudas, Christodoulos A.
通讯作者：
Floudas, Christodoulos A.
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影响因子：
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作者：
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Dadfar, M.;Fathi, M. H.;Saatchi, A.
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Saatchi, A.