Heterointerface Engineering of water stable ZIF-8@ZIF-67: Adsorption of Rhodamine B from water.

Facile synthesis of Tri-metallic Layered Double Hydroxides (NiZnAl-LDHs): Adsorption of Rhodamine-B and Methyl orange from water

Nanocrystalline M type hexaferrites Ca0.5Pb0.5-xYbxZnyFe12-yO19 (x = 0.00–0.1, y = 0.00–1.00) were synthesized by sol-gel autocombustion method. The effects of Yb-Zn doping on structural, optical and electric nature of Ca-Pb M type hexaferrites were explored. The crystal structure of the hexaferrites revealed magnetoplumbite phase with Yb-Zn varying contents (x, y) from 0.00 to 0.1 and 0.00 to 1.00. While the SEM confirmed the presence of well-developed flake shaped particles with size of 16–17 nm. Increase in the dielectric parameters from12.3 to 344.65 k has been observed by dielectric spectroscopy. The results demonstrate that band gap (2.6–2.5 eV) of CaPbFe12O19 can be tuned by the intervention of Yb and Zn ions to enhance the photocatalytic performance. The photocatalytic degradation of methylene blue (MB) dye with undoped CaPbFe12O19 and doped Ca0.5Pb0.5-xYbxZnyFe12-yO19 M type hexaferrites was performed at pH 07 varying time intervals from 0 to 90 min. The Ca0.5Pb0.5-xYbxZnyFe12-yO19 (x = 0.1, y = 1.00) exhibited enhanced percentage degradation efficiency 96.1 % at visible light irradiation in 90 min at pH 07 following the first order kinetics. On the basis of obtained results, Yb-Zn doped CaPbFe12O19 M type hexaferrites can be proposed as excellent material for dielectric, microwave and photocatalyst for the removal of textile contamination. 

Facile synthesis of Yb3+-Zn2+ Substituted M type Hexaferrites: Structural, Electric and Photocatalytic Properties under visible light for Methylene blue removal

Polyhedral Co3O4@ZnO Nanostructures as Proficient Photocatalysts for Vitiation of Organic Dyes from Waste Water

Graphite phased carbon nitride (g-C3 N4 ) has attracted extensive attention attributed to its non-toxic nature, remarkable physical-chemical stability, and visible light response properties. Nevertheless, the pristine g-C3 N4 suffers from the rapid photogenerated carrier recombination and unfavorable specific surface area, which greatly limit its catalytic performance. Herein, 0D/3D Cu-FeOOH/TCN composites are constructed as photo-Fenton catalysts by assembling amorphous Cu-FeOOH clusters on 3D double-shelled porous tubular g-C3 N4 (TCN) fabricated through one-step calcination. Combined density functional theory (DFT) calculations, the synergistic effect between Cu and Fe species could facilitate the adsorption and activation of H2 O2 , and the separation and transfer of photogenerated charges effectively. Thus, Cu-FeOOH/TCN composites acquire a high removal efficiency of 97.8%, the mineralization rate of 85.5% and a first-order rate constant k = 0.0507 min-1 for methyl orange (MO) (40 mg L-1 ) in photo-Fenton reaction system, which is nearly 10 times and 21 times higher than those of FeOOH/TCN (k = 0.0047 min-1 ) and TCN (k = 0.0024 min-1 ), respectively, indicating its universal applicability and desirable cyclic stability. Overall, this work furnishes a novel strategy for developing heterogeneous photo-Fenton catalysts based on g-C3 N4 nanotubes for practical wastewater treatment.

Double-Shelled Porous g-C3 N4 Nanotubes Modified with Amorphous Cu-Doped FeOOH Nanoclusters as 0D/3D Non-Homogeneous Photo-Fenton Catalysts for Effective Removal of Organic Dyes.

Muhammad Altaf Nazir

Papers

Facile synthesis of Tri-metallic Layered Double Hydroxides (NiZnAl-LDHs): Adsorption of Rhodamine-B and Methyl orange from water

Facile synthesis of Yb3+-Zn2+ Substituted M type Hexaferrites: Structural, Electric and Photocatalytic Properties under visible light for Methylene blue removal

Versatile Ag2O and ZnO Nanomaterials Fabricated via Annealed Ag-PMOS and ZnO-PMOS: An Efficient Photocatalysis tool for azo Dyes