Abstract
Porous phosphide NixCoyP composite nanomaterials are successfully synthesized at different Ni/Co ratios (=0, 0.5, 1, and 2) to reduce 4-nitrophenol. The X-ray diffraction and X-ray photoelectron spectroscopy results demonstrate that the products are CoP, NiCoP/CoP, NiCoP, and NiCoP/Ni2P when the Ni/Co ratio is 0, 0.5, 1, and 2, respectively. The products exhibit different catalytic performance for reduction of 4-nitrophenol at room temperature. Among them, the pure NiCoP delivers a better catalytic efficiency with and , due to the synergy between Ni and Co atoms. The sequence of catalytic efficiency of different samples is CoP < NiCoP/CoP < NiCoP/Ni2P < NiCoP.
Highlights
In the past decades, water contamination has become an inevitable issue, and the use of unhealthy water is one of the most important sources of diseases [1]
Experimental demonstrate that the NiCoP composite nanomaterials have excellent catalytic efficiency and promising application as catalyst for 4-NP reduction
The morphologies and Nanomaterials microstructures of the composites were characterized by employing field emission scanning electron microscope (FE-SEM, Hitachi S-4800) and Energy dispersive X-ray Spectroscopy (EDX)
Summary
Water contamination has become an inevitable issue, and the use of unhealthy water is one of the most important sources of diseases [1]. Different from nitrides and carbides, the phosphorus atom in transition metal phosphides is usually found at the center of a triangular prism, rather than residing in the interstitial spaces between metal host atoms. Recent studies have demonstrated that transitional metal phosphides present better catalytic effects for hydrodesulfurization, hydrodenitrogenation and hydrogenation [22,23]. Stinner et al fabricated the MoP with better hydrodenitrogenation performance than MoS2 owing to the enrichment of Mo in MoP [24]; Song et al designed FeP/SiO2 as hydrodesulfurization catalysts more coordination unsaturated bonds than carbide and they have more [25];phosphides. 57 × 10 min [27]; Lu the enrichment of Mo in MoP [24]; Song et al designed FeP/SiO2 as hydrodesulfurization catalysts [25]; and Ibrahim his coworkers prepared xPy core-shell microstructures with k.
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