Physiochemical analysis of clay and polyoxometallate composite used for sorptive detoxification of mutagenic Brilliant Green dye

Raza, Asma; Rehman, Rabia; Batool, Madeeha; Samin, Ghufrana; Jahangir, Muhammad; Al-thagafi, Zahrah T.; Alsantali, Reem I.; Al-Hazemi, Maha E

doi:10.1080/01932691.2023.2244584

Cited by 2 publications

(2 citation statements)

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“…BG, a triphenylmethane cationic dye, is used in medical applications, textile, and paper dyeing known for its environmental persistence and toxicity. 42 It can cause several health issues in humans, including irritation of the gastrointestinal and respiratory tracts, nausea, vomiting, and skin irritation. 43 Tartrazine, a synthetic anionic azo dye prevalent in various food and cosmetic products, presents significant challenges in aqueous effluent management due to its pronounced chemical stability and elevated toxicity profile.…”

Section: Introductionmentioning

confidence: 99%

“…Even at relatively low concentrations (300–4800 μg/L), AO has been found to inhibit growth, adversely impact reproduction, and cause deformities in algae, highlighting the need for effective removal methods. BG, a triphenylmethane cationic dye, is used in medical applications, textile, and paper dyeing known for its environmental persistence and toxicity . It can cause several health issues in humans, including irritation of the gastrointestinal and respiratory tracts, nausea, vomiting, and skin irritation .…”

Section: Introductionmentioning

confidence: 99%

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Governing the Porosity and Morphology of Zeolitic Imidazolate Framework-Derived Functional Carbons toward Improved Adsorption of Cationic Dyes

Ejsmont,

Dutta,

Jankowska

et al. 2024

Chem. Mater.

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Nitrogen-rich porous carbons prepared from zeolitic imidazolate frameworks (ZIFs) offer a promising platform for the effective confinement of small guest molecules. However, a key challenge within the domain of liquid-phase adsorption lies in the prevailing microporosity of ZIF-derived carbons, which impedes the diffusion of larger molecules and hinders the adsorption efficiency. In order to maximize carbon availability, methods for reshaping the particle morphology and generating mesoporosity are being dynamically developed. Herein, we present a strategy that addresses the limitations of conventional carbons from ZIF-8 and endeavors to increase the adsorption capacities toward organic pollutants via the generation of a dual-pore system along with the obtaining of diverse particle morphologies. We envisioned developing two strategies to synthesize unique ZIF precursors. The first method focused on ZIF-8 preparation from zinc oxides in the form of nanoparticles or flowers. In the second approach, a ZIF-8 crystalline phase was transformed into a pseudopolymorphic phase (ZIF-CO 3 -1) with a two-dimensional structure. The present study unveils the unexplored application of ZIF-CO 3 -1 in preparing functional porous carbons. Owing to the architecture of the ZnO@ZIF-8 and ZIF-CO 3 -1 precursors, their high-temperature carbonization generated carbons with hierarchical porosity (micro/mesopores). Compared to the microporous carbons, the adsorbents exhibited superior performance toward removing Auramine-O and Brilliant Green dyes, with sorption capacities of 257−544 and 247−395 mg/g, respectively. Their efficiency is attributed to elevated textural parameters, rich surface chemistry, and particle morphology, which improved pore accessibility.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%