Nanostructured metal nitrides for photocatalysts

Abstract

Recently, metal nitrides (MNs) have received renewed attention these decades due to potential catalytic materials in energy transformations, with water spitting and CO2 reduction being the most studied reactions. The...

Surveying the Synthesis, Optical Properties and Photocatalytic Activity of Cu3N Nanomaterials

“…During the last decade, significant progress has been made in the nitride chemistry synthesis field. The main synthesis routes consist of solid-gas state synthesis, solvothermal, sol-gel, non-thermal plasma, electrospinning, electrodeposition, atomic layer deposition, chemical vapor deposition and laser ablation methods among others [43][44][45]. These new strategies for nanomaterial synthesis must consider the reaction conditions, along with the most relevant precursors in order to obtain reliable and reproducible properties of the synthesized materials.…”

“…In these compounds, the M atoms are bonded with nitrogen via covalent or ionic bonds. According to Rao et al, the addition of N atoms to a transition metal converts the metal-metal bond to a covalent bond or a mixture of covalentmetal bonds [44]. Moreover, the addition of N increases the bond length and, consequently, the lattice parameters, resulting in a contraction of the metal d-band, further suggesting that bonds in metal nitrides are ionic.…”

“…For example, CoN, [100] Ta 2 N, [100] Ta 3 N 5 , [101], Ni 3 N, [102,103] and InGaN [104] have been tested as potential semiconductors for water splitting. In photocatalytic water splitting reactions, the photo-induced process enables the production of H 2 and O 2 [44,105]. Additionally, metal nitrides are sturdy with good refractory properties at elevated temperatures of 2000 • C owing to their metallic character.…”

Recent advances, influencing factors, and future research prospects using photocatalytic process for produced water treatment

“…Nitrides based Photocatalysts. Nitrides based Photocatalysts are well suited for catalytic applications as they have good electrical conductivity and Pt-like band structures, thus showing catalytic activity in hydro-denitrogenation and hydro-desulfurization (Rao et al 2021). Also Nitrides nanostructures possess good mechanical toughness, including an outstanding stability in aqueous solution during electrochemical reactions (Qureshi et al 2017).…”

In situ sulfuration synthesis of heterostructure MoS2–Mo2C@C for boosting the photocatalytic H2 production activity of TiO2

“…Therefore, a lot of nonprecious and low-cost cocatalysts, including transition-metal phosphides, transition-metal carbides, and transition-metal sulfides, have demonstrated to dramatically improve the photocatalytic H 2 -evolution performance. [15][16][17][18] In particular, transition-metal carbides (e.g., CoC x , MoC x ) have attracted much attention because of their notable electroconductive property and excellent corrosion resistance. [19][20][21] Molybdenum carbide (Mo 2 C), a typically interstitial filling material, usually presents a Pt-like d-band structure by hybridizing the Mo 4d orbitals and C s/p-orbitals, which has been widely investigated in the field of photocatalytic H 2 evolution.…”