Review of photo- and electro-catalytic multi-metallic layered double hydroxides

Coordination Chemistry Reviews, Год журнала: 2023, Номер 480, С. 215008 - 215008

Опубликована: Янв. 17, 2023

Язык: Английский

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EDTA functionalized Mg/Al hydroxides modified biochar for Pb(II) and Cd(II) removal: Adsorption performance and mechanism

Separation and Purification Technology, Год журнала: 2023, Номер 335, С. 126199 - 126199

Опубликована: Дек. 26, 2023

Язык: Английский

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Chemical Assessment of Drinking Water Quality and Associated Human Health Risk of Heavy Metals in Gutai Mountains, Romania

Toxics, Год журнала: 2024, Номер 12(3), С. 168 - 168

Опубликована: Фев. 22, 2024

Chemical data compiled from field and laboratory studies were analysed on drinking water sources a mountain area (Gutai Mountains) in Romania. Six physico-chemical indicators, nine anions, twenty-one metals determined analysed. The results of this study showed that waters are generally rich NH4+ NO2−, exceeding the recommended limit 0.5 mg NH4+/L, while some As, Cd, Mn Pb, but with concentrations below limits concerning use purposes. applied heavy metal pollution indices (scores: 0.56–47.9) indicate more than 50% samples characterized by medium degrees. Based obtained, it was geological human activities influential enriching studied chemicals considered. Emphasizing aspect related to importance clean chemical status must characterize used for purposes, health risk assessment implemented. indicated even though metals, scores lack non-carcinogenic risks Mn, Cd Cu. Nevertheless, obtained significant at national international levels offering perspective determining potential associated area.

Язык: Английский

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Construction of dopamine supported Mg(Ca)Al layered double hydroxides with enhanced adsorption properties for uranium

The Science of The Total Environment, Год журнала: 2023, Номер 881, С. 163525 - 163525

Опубликована: Апрель 15, 2023

Язык: Английский

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Green synthesis of layered double hydroxides (LDH) for the remediation of As and Cd in water and soil

Applied Clay Science, Год журнала: 2024, Номер 249, С. 107262 - 107262

Опубликована: Янв. 20, 2024

Язык: Английский

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Immobilization mechanism of Mn2+ in electrolytic manganese residue using sintered ceramsites prepared by alkali-mechanical-roasting method

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(2), С. 112419 - 112419

Опубликована: Март 6, 2024

Язык: Английский

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The dissolved organic matter from the co-decomposition of Chinese milk vetch and rice straw induces the strengthening of Cd remediation by Fe-modified biochar

Biochar, Год журнала: 2024, Номер 6(1)

Опубликована: Март 25, 2024

Abstract Fe-modified biochar (FB) and co-using Chinese milk vetch rice straw (MR) are two effective ways for mitigating the cadmium (Cd) contamination in paddy fields southern China. Nevertheless, effects of FB combined with MR on Cd passivation mechanism remain unclear. In current study, strengthening induced by were found mechanisms extracted dissolved organic matter (DOM) from co-decomposition alleviation investigated through pot experiment adsorption experiment. Pot demonstrated that co-incorporating decreased available 23.1% increased iron plaque concentration 11.8%, resulting a 34.7% reduction concentrations brown compared addition FB. Furthermore, improved nutrients soil. The molecular characteristics DOM derived decomposition (DOM-MR) analyzed fluorescence excitation emission matrix spectroscopy-parallel factor analysis (EEM-PARAFAC) Fourier transform-ion cyclotron resonance mass spectrometry (FT-ICR MS). Results showed lignin/carboxylic-rich alicyclic molecules protein/amino sugar main compounds, potentially involved binding. Adsorption experiments revealed DOM-MR functional groups, specific surface area, negative charges FB, inducing both physisorption chemisorption Cd(II). maximum capacity after adding was 634 mg g −1 , 1.30 times without DOM-MR. This study suggested MR, could serve as an innovative practice simultaneous remediation soil fertilization Cd-polluted fields. It also provided valuable insights basis optimize performances enhance its potential immobilization. Graphical

Язык: Английский

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Nano silica-mediated stabilization of heavy metals in contaminated soils

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Сен. 3, 2024

Soil contamination with heavy metals presents a substantial environmental peril, necessitating the exploration of innovative remediation approaches. This research aimed to investigate efficiency nano-silica in stabilizing calcareous metal-contaminated soil. The soil was treated five levels 0, 100, 200, 500, and 1000 mg/kg incubated for two months. results showed that had specific surface area 179.68 $${\text{m}}^{2}/\text{g}$$ . At mg/kg, DTPA-extractable concentrations Pb, Zn, Cu, Ni, Cr decreased by 12%, 11%, 11.6%, 10%, 9.5% compared controls, respectively. Additionally, as application rate increased, both pH increased. augmentation adsorbent led decline exchangeable (EX) carbonate-bound fractions Cr, while distribution bonded Fe–Mn oxides, organic matter, residue use resulted an 8.0% reduction EX 4.5% 7.3% 7.1% 7.9% control treatment. Overall, our study highlights potential nano silica promising strategy addressing metal pollution contaminated soils, offering sustainable solutions restoration ecosystem protection.

Язык: Английский

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Natural organic matter changed the capacity and mechanism of Pb and Cd adsorptions on iron oxide modified biochars

Separation and Purification Technology, Год журнала: 2023, Номер 314, С. 123625 - 123625

Опубликована: Март 16, 2023

Язык: Английский

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Enhancing sorption of layered double hydroxide-based magnetic biochar for arsenic and cadmium through optimized preparation protocols

Bioresource Technology, Год журнала: 2023, Номер 388, С. 129756 - 129756

Опубликована: Сен. 9, 2023

Язык: Английский

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