Co-Removal of Mercury and Organic Dye Via the Rectangle-Shaped Nanosheets Loaded Hydrochar: Surface Interactions and Dft Calculations

Опубликована: Янв. 1, 2024

Inorganic and organic pollutants usually coexist in practical wastewater, leading to difficult co-removal processes due their different physiochemical properties. In this study, the palygorskite nanosheets loaded hydrochar (PNLH) was synthesized for mercury (Hg) methylene blue (MB) co-contaminated wastewater. The physicochemical characteristics of PNLH were investigated comprehensively, maximum capacity Hg(II) MB reached 148.69 153.06 mg/g, respectively. Based on analysis, surface interactions between with included complexation, hydrogen bonding, pore filling, etc. More importantly, performance improved Hg(II)-MB binary system, while synergistic effects attributed bridging formation complexations MB. density functional theory (DFT) method applied demonstrate that oxygen-containing groups such as O-Mg, O-Al, -OH introduced by clay greatly enhanced interactions, adsorption mechanism also elucidated. regeneration experiments, column studies, economic feasibility analysis further demonstrated practicality effluent purification. This study provides a solution environmental remediation materials dealing inorganic-organic co-polluted

Язык: Английский

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A polyfunctionalized carbon framework composite for efficient decontamination of Cr(VI) and polycyclic aromatic nitrides from acidic wastewater

Environmental Science and Pollution Research, Год журнала: 2024, Номер 31(30), С. 43323 - 43338

Опубликована: Июнь 20, 2024

Язык: Английский

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Unmodified Mg/Al layered double hydroxide clay with versatile and specific adsorption capacity over high spectrum type of harmful contaminants

Materials Chemistry and Physics, Год журнала: 2024, Номер 326, С. 129835 - 129835

Опубликована: Авг. 8, 2024

The present study investigates the effectiveness of Mg/Al layered double hydroxide (MATclay) for adsorbing Congo Red dye (CR) from wastewater. MATclay was prepared using a cost-effective co-precipitation method at pH 9.5, ensuring both chemical and mechanical stability. in-depth physico-chemical characterization sample performed various techniques, including FE-SEM, FT-IR, XRD, DLS, BET surface area, Zeta potential, TEM, XPS, XAS, TGA. Batch experiments were to evaluate adsorptive performance under different conditions (30–100 mg/L initial concentration, 298–320 K temperature range, 5–180 min contact time). adsorption data fit best with Langmuir model, indicating monolayer maximum capacity 60.61 mg/g. Post-adsorption analysis SEM, TGA confirmed interaction CR MATclay. Furthermore, material applied as potential adsorbent other type pollutants, namely cationic (Methylene Blue) antibiotics (Metronidazole, Tetracycline, Cefotaxime), obtained in this complementary showing good results removal Tetracycline Cefotaxime antibiotics. Overall, demonstrates an effective pollutants wastewater treatment.

Язык: Английский

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Hydrochar Loaded with Nitrogen-Containing Functional Groups for Versatile Removal of Cationic and Anionic Dyes and Aqueous Heavy Metals

Water, Год журнала: 2024, Номер 16(23), С. 3387 - 3387

Опубликована: Ноя. 25, 2024

Developing novel sorbents for effective removal of heavy metals and organic dyes from industrial wastewater remains a central theme water research. We modified hydrochar derived the hydrothermal carbonization wheat straw at 180 °C with 3-Aminopropyl triethoxysilane (APTES) to enhance its versatile adsorption Pb(II), Cu(II), methylene blue (MB), reactive red (Red). Pristine (HyC APTES-HyC) were characterized tested sorption performance. Characterization results revealed an enriched presence N-functional groups, mainly -NH2 C-N, on APTES-HyC, in addition increased specific surface area 1.14 m2/g (HyC) 4.51 m2/g. APTES-HyC exhibited faster rate than HyC, reaching equilibrium approximately 4 h after initiation. The Langmuir capacities 49.6, 14.8, 31.7, 18.3 mg/g MB, Red, respectively, about 8.5, 5.0, 1.3, 9.5 times higher HyC. enhanced performance is attributed which facilitated mechanisms pollutant concern such as formation frustrated Lewis pairs cation–π interactions metal ions π–π hydrogen bond dyes. This study offers facile approach synthesis N-doped carbon materials practical applications.

Язык: Английский

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Sustainable Synthesis of Nifeal-Ldh@Polystyrene Nanocomposite by Recycling Styrofoam Waste for the Adsorption of Pb(Ii) Ions from an Aqueous Solution

Опубликована: Янв. 1, 2024

Язык: Английский

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Nano-Biochar Prepared from High-Pressure Homogenization Improves Thermal Conductivity of Ethylene Glycol-Based Coolant

Nanomaterials, Год журнала: 2024, Номер 14(15), С. 1308 - 1308

Опубликована: Авг. 3, 2024

As an environmentally friendly material, biochar is increasingly being utilized in the field of heat transfer and thermal conduction. In this study, nano-biochar was prepared from high-pressure homogenization (HPH) using sesame stalks as raw material. It incorporated into ethylene glycol (EG) its dispersion stability, viscosity, conductivity were investigated. The stably dispersed EG for 28 days. When concentration added to less than 1%, impact on viscosity negligible. addition 5 wt.% improved by 6.72%, which could be attributed graphitized structure Brownian motion nano-biochar. Overall, has potential applied automotive management.

Язык: Английский

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Chitosan-Functionalized Magnetic Engineering Porous Carbon Materials for Simultaneous Adsorption of Cr(Vi) and Organic Dyes from Wastewater

Опубликована: Янв. 1, 2023

Язык: Английский

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