Pt₃Co Alloy Nanoclusters as Charge Separation and Reduction Sites for the Enhanced Photoreduction of CO₂ on Mo₂C MXene

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

Language: Английский

Preparation of Biochar-Loaded Er3+-Doped BiOCl Ultrathin Nanosheets Composite Photocatalysts and Their Photodegradation Performance of TC-HCl

Catalysts, Journal Year: 2024, Volume and Issue: 14(12), P. 874 - 874

Published: Nov. 29, 2024

In this study, biochar-loaded E3+:BiOCl (C/3E3+:BiOCl) was synthesized with varying levels of E3+ doping using a one-step solvothermal method and used for tetracycline hydrochloride (TC-HCl) degradation. Their structure, shape morphology were not only characterized by power X-ray diffraction (XRD), scanning electron microscope (SEM) transmission microscopy (TEM) but also UV-vis diffuse reflectance spectra upconversion (UC). The results indicated significant enhancement in the photocatalytic activity catalyst following introduction Er3+. composite material C/3E3+:BiOCl, concentration 3 mol%, demonstrated highest activity, achieving an impressive visible light degradation efficiency 89.2% TC HCl within 90 min. This marks increase 33.5% compared to BiOCl monomer 17.4% C/BiOCl. Additionally, when exposed wavelengths exceeding 600 nm, C/3E3+:BiOCl maintained photodegradation 44.3%, while C/BiOCl showed no under same conditions. finding highlights effectiveness as matrix, which enhances performance through effect transfer mechanisms associated biochar.

Language: Английский

One-Step Scalable Synthesis of 3D Self-Supported Superaerophobic Ce-Coupled Ni3S2/NiS@NF Nanobud Catalyst for Efficient Oxygen Evolution Reaction

Catalysts, Journal Year: 2024, Volume and Issue: 14(11), P. 752 - 752

Published: Oct. 26, 2024

The elaborate design of inexpensive, high-performance electrocatalysts from earth-abundant elements toward oxygen evolution reaction (OER) is critical in various (electro)chemical processes. Herein, a novel binder-free catalyst Ce-coupled Ni3S2/NiS supported on Ni foam (Ce-Ni3S2/NiS@NF) successfully synthesized via facile one-step hydrothermal method that enables practical feasibility with significant enhancement OER activity through anchoring Ce dopants an nanobud host. species coupling can modulate electronic structure, which reduces the energy barrier and optimizes catalytic activity. More profoundly, superhydrophilic superaerophobic properties Ce-Ni3S2/NiS@NF electrode further promote mass transfer. As result, exhibits excellent low overpotential 236 350 mV to achieve current densities 10 100 mA cm−2, respectively, long-term durability for 24 h alkaline medium. These results could supply valuable guidelines other catalysts beyond.

Language: Английский