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Article Tier 2 Food & Water Human Health Effects Marine & Wildlife Policy & Risk Remediation Sign in to save

Tea/Coffee Sustainable Nanoarchitectures Purify Wastewater

Nano Letters 2024 1 citation

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Researchers developed tea- and coffee-derived carbon nanomaterials as sustainable adsorbents for wastewater purification, testing their capacity to remove organic pollutants and heavy metals from contaminated water. The bio-based nanoarchitectures achieved high removal efficiencies comparable to commercial activated carbon.

Study Type Environmental

Transforming spent coffee grounds and tea residues into valuable hierarchical porous materials presents a sustainable solution for environmental remediation due to the low cost, extensive availability, and versatile functionalized interface. Here, we systematically investigated tea polyphenol-mediated morphological transformation of spent coffee grounds to the synthesis of three-dimensional (3D) mesoporous metal-organic framework (MOF)-derived nanoarchitectured carbon composites. We adopted the sustainable cost-effective tea-coffee derivative to remove typical marine micropollutants, such as antibiotic wastewater, radioactive pollutants, and microplastics. This innovative adsorbent shows remarkable efficiency in antibiotic adsorption, achieving up to 99.62% removal of tetracycline (TC), with an impressive maximum adsorption capacity of 373.1 mg/g. It also demonstrates a remarkable ability to remove marine microplastics and radioactive pollutants with immediate nuclear threats and global sanitation and health crisis posed by Fukushima nuclear waste toward the world. The innovative strategy of treating waste with waste highlights economic potential in wastewater treatment.

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