Nano Ag/AgBr/g-C₃N₄ catalyzed the production of hydrogen and reduction of d-glucose to sorbitol under visible light irradiation

Abstract

In this study, it has been reported that the polymeric graphitic carbon nitride (g-C3N4) was modified by anchoring Ag/AgBr to improve its charge separation efficiency. When compared to g-C3N4 nanosheets...

Nano Pt/TiO2 photocatalyst for ultrafast production of sulfamic acid derivatives using 4-nitroacetanilides as nitrogen precursor in continuous flow reactors

“…The removal of SO 2 from the atmosphere is aided by processes such as oxidation, wet deposition, dry deposition, absorption by vegetation and soil, solubility into water, and others. Today, the development of green techniques in chemical transformations (Attia and Mohamed 2022 ; Attia and Abdel-Hafez 2022 ) using recyclable nanocatalyst to afford high selectivity and catalytic performance has attracted great attentions (Taha et al 2022 ; Attia and Abdel-Hafez 2021 ; Al-Musawi et al 2022a ; Attia 2016 ). Moreover, the regeneration/recovery of the initial photocatalytic activity through combining photocatalysis and nonthermal plasma was explored in several studies (Hassani et al 2017 ; Abou Saoud et al 2017 ).…”

Enhanced electrocatalytic activity of graphitic carbon nitride‐supported Ni/NiO microflower structures for urea electro‐oxidation

“…While the peak at 13.7° is the (100) plane of hexagonal g‐C 3 N 4 , which indicates an in‐plane architectural packing motif with a period of 0.675 nm, the peak at 27.3° in g‐C 3 N 4 is the characteristic (002) plane peak owing to the layering of conjugate aromatic planes (JCPDS card No. 87‐1526) 33‐35 . By the powder diffraction standard spectrum, at 2 θ values of 37.2°, 43.23°, 62.8°, 75.31°, and 79.37°, pure NiO exhibits five peaks that, respectively, resemble the (111), (200), (220), (311), and (222) planes (JCPDS card No.…”

“…10, Tafel plots are illustrated for different prepared electrodes (NiO microflower, NCs 10%, NCs 30%, NCs 60%, and NCs 90%) in 0.5 mol L −1 NaOH solution containing 0.3 mol L −1 urea at 2 mV s −1 sweep rate. The following estimate was made for the Butler-Volmer model's Tafel behavior 34,48 :…”

Chemocatalytic production of sorbitol from cellulose via sustainable chemistry – a tutorial review

“…Highly selective conversion of glucose to sorbitol can be achieved at room temperature and pressure which significantly reduces energy consumption. 90 Using typical photocatalyst, Ag/AgBr/ g-C 3 N 4 nanoparticles, glucose can be reduced to sorbitol in the presence of NaHSO 3 under visible light irradiation (Fig. 7), facilitating in situ hydrogen production with sorbitol yields of more than 89% in 8 h. 90 TiO 2 -based photocatalysts commonly used in photocatalysis can also be used for the reaction.…”

“…90 Using typical photocatalyst, Ag/AgBr/ g-C 3 N 4 nanoparticles, glucose can be reduced to sorbitol in the presence of NaHSO 3 under visible light irradiation (Fig. 7), facilitating in situ hydrogen production with sorbitol yields of more than 89% in 8 h. 90 TiO 2 -based photocatalysts commonly used in photocatalysis can also be used for the reaction. 91 For example, TiO 2 pillared bentonite-Co catalyst Ni 92 has been used to produce sorbitol, and the sorbitol produced by UV irradiation for 30 d reached 66.8%.…”