Development of a hydroxyapatite-based composite: Sr-doped HAp/NiO proven to be an efficient nanocatalyst for photocatalytic degradation of organic dye and photoreduction of Cr(vi)

New Journal of Chemistry, Год журнала: 2024, Номер 48(30), С. 13639 - 13653

Опубликована: Янв. 1, 2024

An efficient heterogeneous photocatalyst, Sr-doped HAp/NiO was utilized to degrade harmful Congo red dye and reduce carcinogenic Cr( vi ) less hazardous iii ).

Язык: Английский

---

Metal–organic framework‐supported hydroxyapatite (UiO‐66@HAp): an efficient catalyst for the microwave‐assisted transesterification of palm oil

Biofuels Bioproducts and Biorefining, Год журнала: 2024, Номер 18(2), С. 410 - 424

Опубликована: Янв. 8, 2024

Abstract Biodiesel has recently emerged as a renewable and environmentally benign fuel substitute for fossil‐derived energy sources. The use of heterogeneous solid catalysts the generation biodiesel from biomass‐derived fats oils is sustainable. Among various reported catalyst supports, metal–organic frameworks (MOFs) have been popular choices enhancing catalytic activity synthesis because several outstanding features including porosity, high surface area, adjustable structures, uniform pore sizes. In this research, authors synthesized novel nanocomposite MOF‐supported hydroxyapatite (UiO‐66@HAp) using facile impregnation technique characterization as‐synthesized was performed by different spectroscopic methods powder X‐ray diffraction (PXRD), Fourier transform infrared (FTIR), photoelectron spectroscopy (XPS), field emission gun‐scanning electron microscope (FEG‐SEM), dispersive (EDS), resolution transmission microscopy (HR‐TEM), thermogravimetric analysis (TGA), N 2 adsorption–desorption techniques. After successful synthesis, property prepared material evaluated in palm oil transesterification into biodiesel. Product formation confirmed 1 H nuclear magnetic resonance (NMR) spectroscopy, 13 C NMR, FTIR, gas chromatography–mass spectrometry (GC–MS) influence reaction variables such dosage, methanol/oil molar ratio, temperature reaction, time also studied. outcomes revealed that maximum yield (∼97%) obtained when 6 wt% used with 6:1 ratio at 70 °C h. It observed that, even after 5 cycles reuse, capable producing significant amounts (over 90%). results suggest holds promising future sustainable production

Язык: Английский

---

2D g-CN@Ni-bpy MOF nano-composite for photocatalytic activity

Inorganic Chemistry Communications, Год журнала: 2024, Номер 165, С. 112533 - 112533

Опубликована: Май 11, 2024

Язык: Английский

---

CuWO₄ Reinforced Co‐doped HAp Nanocomposite: Improved Photocatalytic Activity Towards Degradation of Eosin Y and Catalytic Activity in Crossed Aldol Condensation Reaction

ChemistrySelect, Год журнала: 2024, Номер 9(1)

Опубликована: Янв. 2, 2024

Abstract Preventing the recombination of photoinduced charge carriers in different semiconductor photocatalysts is crucial but high‐performance photocatalyst still challenging. Herein, we report synthesis a novel heterojunction cobalt‐doped hydroxyapatite with CuWO 4 i. e. Co‐HAp@CuWO nanocomposite by simple and facile ultrasonication technique. The morphological structural features composite was examined using PXRD, FTIR, SEM, EDS, TEM, UV‐DRS XPS techniques. optical analysis showed that band gap Co‐HAp@CuWO4 1.59 eV which very much lower than pure HAp. photocatalytic efficiency assessed degradation Eosin Y dye under solar light irradiation. result capacity 94.5 % after 70 minutes irradiation it follows pseudo first‐order kinetics. impact reaction parameters such as catalyst amount, initial concentration dye, solution pH also examined. recyclability test synthesized material highly stable visible‐light driven degradation. Heterogeneous catalytic efficacy prepared crossed aldol condensation benzaldehyde acetone outcomes confirmed dibenzylideneacetone (DBA) formed outstanding yields optimum conditions.

Язык: Английский

---

Investigating replacement core-shell strategies for optimizing photocatalytic chromium reduction with MOF-on-MOF heterostructure on steel mesh

Materials Today Sustainability, Год журнала: 2024, Номер 27, С. 100835 - 100835

Опубликована: Май 16, 2024

Язык: Английский

---

Iron (III) acetylacetonate-functionalized hydroxyapatite for efficient photocatalytic degradation of pollutants

Inorganic Chemistry Communications, Год журнала: 2025, Номер unknown, С. 114366 - 114366

Опубликована: Март 1, 2025

Язык: Английский

---

Hydroxyapatite-based Composites as Efficient Sorbents: Fabrication and Application in Sample Preparation Techniques

TrAC Trends in Analytical Chemistry, Год журнала: 2025, Номер unknown, С. 118242 - 118242

Опубликована: Март 1, 2025

Язык: Английский

---

Achieving 99.6% methylene blue degradation with IoT-based real-time monitoring using AC/HAp photocatalysts

International Journal of Environmental Science and Technology, Год журнала: 2025, Номер unknown

Опубликована: Май 14, 2025

Язык: Английский

---

Activation of Peroxymonosulfate using a novel heterogeneous catalyst SO-gCN@ZIF-67 for excellent degradation of Brilliant Green dye

Inorganic Chemistry Communications, Год журнала: 2024, Номер 169, С. 113091 - 113091

Опубликована: Авг. 31, 2024

Язык: Английский

---

A development of sensor based on ZnO@ZIF-8 for detection of 5-Fluorouracil as a liver cancer medicine in serum samples

Inorganic Chemistry Communications, Год журнала: 2024, Номер unknown, С. 113179 - 113179

Опубликована: Сен. 1, 2024

Язык: Английский

---