Nanoarchitectonics of Bimetallic MOF@Lab‐Grade Flexible Filter Papers: An Approach Towards Real‐Time Water Decontamination and Circular Economy

Abstract

This study presents a novel approach to decontaminate ferrocyanide‐contaminated wastewater. The work effectively demonstrates the use of bimetallic Mo/Zr‐UiO‐66 as a super‐adsorbent for rapid sequestration of Prussian blue, a frequently found iron complex in cyanide‐contaminated soils/groundwater. The exceptional performance of Mo/Zr‐UiO‐66 is attributed to the insertion of secondary metallic sites, which deliver synergistic effects, benefiting the inherent qualities of the framework. Moreover, to extend the industrial applications of metal‐organic frameworks (MOFs) in real‐world scenarios, an approach is delivered to structure the nanocrystalline powders into MOF‐based macrostructures. The work demonstrates an interfacial process to develop continuous MOF nanostructures on ordinary laboratory‐grade filter papers. The novelty of the work lies in the development of robust free‐standing filtration materials to purify PB dye‐contaminated water. Additionally, the work embraces a circular economy concept to address problems related to resource scarcity, excessive waste production, and maintenance of economic benefits. Consequently, the PB dye‐loaded adsorbent waste is re‐employed for the adsorption of heavy metals (Pb2+ and Cd2+). Simultaneously, the study aims to address the problems related to the real‐time handling of powdered adsorbents, and the generation of ecologically harmful secondary waste, thereby, progressing toward a more sustainable system.

Influence of Pressure and Temperature on the Flexible Behavior of Iron-Based MIL-53 with the CO2 Host: A Comprehensive Experimental and DFT Study

“…This has led to the emergence of the circular economy, which aims to enhance resource efficiency and reduce waste by prolonging the useful life of products and resources. 10,11 On the other hand, functionalization effectively improves CO 2 adsorption and selectivity by introducing surface functional groups, such as amines, that can strongly interact with CO 2 . 12−16 Likewise, functionalized MOFs also impact the flexible character of the structure and the general shape of the adsorption isotherms, i.e., the adsorption in flexible MOFs is characterized by the appearance of steps or jumps in the isotherms.…”

“…Using materials from waste has gained significant importance in today’s economy. This has led to the emergence of the circular economy, which aims to enhance resource efficiency and reduce waste by prolonging the useful life of products and resources. , …”

“…This has led to the emergence of the circular economy, which aims to enhance resource efficiency and reduce waste by prolonging the useful life of products and resources. 10 , 11 …”

Metal-Organic Frameworks Based Multifunctional Materials for Solar Cells: A Review

“…For instance, HKUST-1 was constructed by symmetry units, including a copper paddle wheel (-Cu2(COO)4) along with benzene-1,3,5tricarboxylic acid (H3BTC). MOFs have a crystal, porous framework structure, making them promising candidates in various applications such as gas adsorption, catalysis, and sensors [38][39][40][41][42][43]. In particular, MOFs containing unsaturated metal sites and Lewis basis sites were evaluated as promising materials for gas storage, such as CH4, CO2, and H2 [44].…”