Enhanced photocatalytic activity by the construction of a TiO2/carbon nitride nanosheets heterostructure with high surface area via direct interfacial assembly

Nano Research ◽  
2017 ◽  
Vol 10 (7) ◽  
pp. 2193-2209 ◽  
Author(s):  
Zili Xu ◽  
Chuansheng Zhuang ◽  
Zhijuan Zou ◽  
Jingyu Wang ◽  
Xiaochan Xu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Surface Area ◽  
Carbon Nitride ◽  
High Surface ◽  
High Surface Area ◽  
Interfacial Assembly ◽  
Carbon Nitride Nanosheets

Nanoporous photocatalysts developed through heat-driven stacking of graphitic carbon nitride nanosheets

RSC Advances ◽  
2015 ◽  
Vol 5 (18) ◽  
pp. 14027-14033 ◽  
Author(s):  
Zhijun Huang ◽  
Fengbo Li ◽  
Bingfeng Chen ◽  
Guoqing Yuan
Keyword(s):  
Heat Treatment ◽  
Optical Properties ◽  
Photocatalytic Activity ◽  
Surface Area ◽  
Carbon Nitride ◽  
High Surface ◽  
High Surface Area ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Carbon Nitride Nanosheets

Nanostructured g-C3N4 with high surface area from heat treatment of guanidinium cyanurate exhibits better optical properties and enhanced photocatalytic activity.

Template-free synthesis of nanocage-like g-C3N4 with high surface area and nitrogen defects for enhanced photocatalytic H2 activity

2019 ◽  
Vol 7 (10) ◽  
pp. 5324-5332 ◽  
Author(s):  
Mao Wu ◽  
Yansheng Gong ◽  
Tao Nie ◽  
Jin Zhang ◽  
Rui Wang ◽  
...  
Keyword(s):  
Surface Area ◽  
Carbon Nitride ◽  
High Surface ◽  
High Surface Area ◽  
Cost Effective ◽  
Porous Graphitic Carbon ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Template Free

Nanocage-like 3D porous graphitic carbon nitride (g-C3N4) with a high surface area and nitrogen defects was successfully prepared via a novel, template-free, cost-effective and hydrothermal-copolymerization route.

High surface area TiO2 nanoparticles: impact of carboxylporphyrin sensitizers in the photocatalytic activity

2020 ◽  
Vol 21 ◽  
pp. 100774
Author(s):  
Caique Prado Machado de Oliveira ◽  
Ana Luísa Almeida Lage ◽  
Dayse Carvalho da Silva Martins ◽  
Nelcy Della Santina Mohallem ◽  
Marcelo Machado Viana
Keyword(s):  
Photocatalytic Activity ◽  
Tio2 Nanoparticles ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area

scholarly journals In-Situ Synthesis of Nb2O5/g-C3N4 Heterostructures as Highly Efficient Photocatalysts for Molecular H2 Evolution under Solar Illumination

Catalysts ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 169 ◽  
Author(s):  
Faryal Idrees ◽  
Ralf Dillert ◽  
Detlef Bahnemann ◽  
Faheem Butt ◽  
Muhammad Tahir
Keyword(s):  
Photocatalytic Activity ◽  
Charge Carrier ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Photogenerated Electron ◽  
Band Alignment ◽  
Solar Irradiation ◽  
Electron Hole ◽  
The Impact

This work focuses on the synthesis of heterostructures with compatible band positions and a favourable surface area for the efficient photocatalytic production of molecular hydrogen (H2). In particular, 3-dimensional Nb2O5/g-C3N4 heterostructures with suitable band positions and high surface area have been synthesized employing a hydrothermal method. The combination of a Nb2O5 with a low charge carrier recombination rate and a g-C3N4 exhibiting high visible light absorption resulted in remarkable photocatalytic activity under simulated solar irradiation in the presence of various hole scavengers (triethanolamine (TEOA) and methanol). The following aspects of the novel material have been studied systematically: the influence of different molar ratios of Nb2O5 to g-C3N4 on the heterostructure properties, the role of the employed hole scavengers, and the impact of the co-catalyst and the charge carrier densities affecting the band alignment. The separation/transfer efficiency of the photogenerated electron-hole pairs is found to increase significantly as compared to that of pure Nb2O5 and g-C3N4, respectively, with the highest molecular H2 production of 110 mmol/g·h being obtained for 10 wt % of g-C3N4 over Nb2O5 as compared with that of g-C3N4 (33.46 mmol/g·h) and Nb2O5 (41.20 mmol/g·h). This enhanced photocatalytic activity is attributed to a sufficient interfacial interaction thus favouring the fast photogeneration of electron-hole pairs at the Nb2O5/g-C3N4 interface through a direct Z-scheme.

Novel core–shell structured BiVO4 hollow spheres with an ultra-high surface area as visible-light-driven catalyst

CrystEngComm ◽  
2014 ◽  
Vol 16 (27) ◽  
pp. 6059-6065 ◽  
Author(s):  
Yang Lu ◽  
Yong-Song Luo ◽  
Hong-Mei Xiao ◽  
Shao-Yun Fu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Surface Area ◽  
High Surface ◽  
Hollow Spheres ◽  
High Surface Area ◽  
Core Shell ◽  
Hydrothermal Route ◽  
Excellent Photocatalytic Activity ◽  
Visible Light Driven

Novel core–shell-structured BiVO4 hollow spheres synthesized via a simple hydrothermal route exhibit an excellent photocatalytic activity.

Synthesis of Mesoporous Anatase TiO 2 Sphere with High Surface Area and Enhanced Photocatalytic Activity

2017 ◽  
Vol 33 (3) ◽  
pp. 300-304 ◽  
Author(s):  
Tianliang Lu ◽  
Youqiang Wang ◽  
Yingli Wang ◽  
Lipeng Zhou ◽  
Xiaomei Yang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area

Preparation and characterization of novel microporous carbon nitride with very high surface area via nanocasting technique

2008 ◽  
Vol 108 (1-3) ◽  
pp. 340-344 ◽  
Author(s):  
Pavuluri Srinivasu ◽  
Ajayan Vinu ◽  
Shunichi Hishita ◽  
Toshio Sasaki ◽  
Katsuhiko Ariga ◽  
...  
Keyword(s):  
Surface Area ◽  
Carbon Nitride ◽  
High Surface ◽  
High Surface Area ◽  
Microporous Carbon ◽  
Very High
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