Facile Green Synthesis of WO3·H2O Nanoplates and WO3 Nanowires with Enhanced Photoelectrochemical Performance

2017 ◽  
Vol 17 (9) ◽  
pp. 4949-4957 ◽  
Author(s):  
Arpan Kumar Nayak ◽  
Youngku Sohn ◽  
Debabrata Pradhan
CrystEngComm ◽  
2019 ◽  
Vol 21 (9) ◽  
pp. 1474-1481 ◽  
Author(s):  
Bing Sun ◽  
Tiantian Feng ◽  
Jing Dong ◽  
Xinle Li ◽  
Xuanhe Liu ◽  
...  

Green synthesis of tunable Bi2S3 nanomaterials with tailored photoelectrochemical performance was proposed in aqueous medium without any organic reagents.


RSC Advances ◽  
2015 ◽  
Vol 5 (34) ◽  
pp. 26897-26904 ◽  
Author(s):  
Mohammad Ehtisham Khan ◽  
Mohammad Mansoob Khan ◽  
Moo Hwan Cho

Visible light-induced photocatalytic degradation of pollutants using an Au–Graphene nanocomposite.


2014 ◽  
Author(s):  
Faranak Manteghi ◽  
Navid Shahmiri ◽  
Beheshteh Sohrabi ◽  
Sina Golafshan

2019 ◽  
Author(s):  
john andraos

This paper proposes a standardized format for the preparation of process green synthesis reports that can be applied to chemical syntheses of active pharmaceutical ingredients (APIs) of importance to the pharmaceutical industry. Such a report is comprised of the following eight sections: a synthesis scheme, a synthesis tree, radial pentagons and step E-factor breakdowns for each reaction step, a tabular summary of key material efficiency step and overall metrics for a synthesis plan, a mass process block diagram, an energy consumption audit based on heating and cooling reaction and auxiliary solvents, a summary of environmental and safety-hazard impacts based on organic solvent consumption using the Rowan solvent greenness index, and a cycle time process schedule. Illustrative examples of process green synthesis reports are given for the following pharmaceuticals: 5-HT2B and 5-HT7 receptors antagonist (Astellas Pharma), brivanib (Bristol-Myers Squibb), and orexin receptor agonist (Merck). Methods of ranking synthesis plans to a common target product are also discussed using 6 industrial synthesis plans of apixaban (Bristol-Myers Squibb) as a working example. The Borda count method is suggested as a facile and reliable computational method for ranking multiple synthesis plans to a common target product using the following 4 attributes obtained from a process green synthesis report: process mass intensity, mass of sacrificial reagents used per kg of product, input enthalpic energy for solvents, and Rowan solvent greenness index for organic solvents.<br>


2019 ◽  
Author(s):  
Jiajia Tao ◽  
Hong-Ping Ma ◽  
Kaiping Yuan ◽  
Yang Gu ◽  
Jianwei Lian ◽  
...  

<div>As a promising oxygen evolution reaction semiconductor, TiO2 has been extensively investigated for solar photoelectrochemical water splitting. Here, a highly efficient and stable strategy for rationally preparing GaON cocatalysts on TiO2 by atomic layer deposition is demonstrated, which we show significantly enhances the</div><div>photoelectrochemical performance compared to TiO2-based photoanodes. For TiO2@20 nm-GaON core-shell nanowires a photocurrent density up to 1.10 mA cm-2 (1.23 V vs RHE) under AM 1.5 G irradiation (100 mW cm-2) has been achieved, which is 14 times higher than that of TiO2 NWs. Furthermore, the oxygen vacancy formation on GaON as well as the band gap matching with TiO2 not only provides more active sites for water oxidation but also enhances light absorption to promote interfacial charge separation and migration. Density functional theory studies of model systems of GaON-modified TiO2 confirm the band gap reduction, high reducibility and ability to activate water. The highly efficient and stable systems of TiO2@GaON core-shell nanowires provide a deeper understanding and universal strategy for enhancing photoelectrochemical performance of photoanodes now available. </div>


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