We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Performance and Mechanism of Nanoporous Ni@NiO Composites for RhB Ultrahigh Electro-Catalytic Degradation
Summary
Researchers developed a nanoporous nickel composite electrode that degraded the textile dye Rhodamine B with exceptional efficiency using electrochemical oxidation, offering a potential treatment approach for dye-contaminated industrial wastewater.
Today, the development of new self-supporting electrode materials with high porosity and excellent degradation properties is of great importance for the removal of dye pollutants. Herein, this work synthesized nanoporous nickel@nickel oxide (np-Ni@NiO) electrode containing an amorphous alloy in the middle interlayer. The nanoporous structure endowed the electrode with more active sites and facilitated the ion/electron transport. The electrochemical active surface area was about 185.5 cm2. The electrochemical degradation of rhodamine B (RhB) using a np-Ni@NiO electrode was systematically investigated. The effects of technology paraments (NaCl concentration, the applied potential and pH) on electro-catalytic degradation were explored. An RhB removal rate of 99.68% was achieved in 30 s at optimized conditions, which was attributed to the unique bicontinuous ligament/pore structure and more active sites on the surface, as well as lower charge transfer resistance. In addition, the degradation mechanism of RhB in electrochemical oxidation was proposed, according to active species capture tests and EPR measurements.
Sign in to start a discussion.
More Papers Like This
Effective Removal of Methylene Blue by Mn3O4/NiO Nanocomposite under Visible Light
Researchers synthesized manganese oxide and nickel oxide nanocomposites and tested their ability to remove methylene blue dye from wastewater under visible light through photocatalysis. The study found that the nanocomposite effectively degraded the dye, demonstrating a low-cost approach to wastewater treatment that could help address water pollution challenges.
α-Fe2O3/graphene oxide powder and thin film nanocomposites as peculiar photocatalysts for dye removal from wastewater
Researchers created iron oxide-graphene oxide nanocomposites in both powder and thin-film forms to remove textile dye from wastewater, finding the powder form more effective — removing over 64% of Rhodamine B dye and remaining stable through six cleaning cycles.
Recent Advances in Nitride Composites for Effective Removal of Organic Dyes in Wastewater Treatment
This review examined the use of nitride-based composite materials for removing organic dyes from industrial wastewater. Researchers found that these materials show strong potential for efficient and selective removal of toxic dye compounds through photocatalysis and adsorption, offering a promising approach for treating contaminated industrial water.
Rubber/BiOCl: Yb,Er composite for the enhanced degradation of methylene blue and Rhodamine B dyes under solar irradiation
Researchers created a composite material by combining a photocatalyst with recycled rubber from bicycle tires that can break down textile dyes under sunlight. The composite completely degraded methylene blue and rhodamine B dyes through solar-powered photocatalytic reactions. This approach demonstrates a practical way to repurpose rubber waste while simultaneously addressing water pollution from industrial dye contamination.
Synthesis, characterization of Ag-doped CdS-WO2 nanocomposite and effects of photocatalytic degradation in RhB under visible light irradiation
Researchers synthesized a silver-doped cadmium sulfide and tungsten oxide nanocomposite and tested its ability to photocatalytically degrade rhodamine B dye under visible light. Developing more efficient photocatalysts could support removal of plastic-associated dye pollutants from wastewater.