首页|Optimized synthesis of Fe-doped Ohmic Schottky heterojunctions for efficient NO3-photocatalytic reduction to generate N2
Optimized synthesis of Fe-doped Ohmic Schottky heterojunctions for efficient NO3-photocatalytic reduction to generate N2
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Capacitive Fe-doped Ni2P(Fe2xNi2(1-x)P)is synthesized via the modified solvothermal method to form Ohmic Schottky heterojunctions with monolayer Ti3C2(MLTC).The composite(10％0.1FNP/CdS-2％MLTC)achieved a high hydrogen evolution rate(HER)of 19.18 mmol h-1 with a 50 mg sample.In a mere span of 3 h,an impressive NO3-reduction of 0.42 mg/L was achieved,accompanied by an excep-tional 92％N2 selectivity.Quantum efficiency(QE)can reach 56.22％(λ=475 nm)by adding 0.1 FNP and MLTC.In contrast to previous catalysts,the QE of visible light after 500 nm has been improved to 45.2％(λ=500 nm)or 36.4％(λ=550 nm).The significant enhancement of HER and NO3-reduction is attributed to the enhanced adsorption of oxygen-containing reactants,the lowering of the reduction over-potential,further enhanced separation efficiency of photogenerated carriers through the ohmic Schottky heterojunction after iron doping.Additionally,the observed capacitor-like nature of 0.1 FNP is also an es-sential factor for the enhanced reduction ability of the composites.
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