A facile in situ approach to fabricate N,S-TiO2/g-C3N4 nanocomposite with excellent activity for visible light induced water splitting for hydrogen evolution

2015 ◽  
Vol 17 (12) ◽  
pp. 8070-8077 ◽  
Author(s):  
Soumyashree Pany ◽  
K. M. Parida
Keyword(s):  
Visible Light ◽  
Specific Surface ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Charge Separation ◽  
Small Crystallite Size ◽  
Excellent Activity ◽  
Efficient Charge ◽  
Small Crystallite

The efficient charge separation, small crystallite size and enhanced specific surface area in N,S-TiO2/g-C3N4 nanocomposites make the system pivotal and unique for hydrogen evolution.

Enhancing visible light photocatalytic activity of bismuth vanadate with the loading of zinc oxide

2019 ◽  
Vol 12 (01) ◽  
pp. 1850110 ◽  
Author(s):  
Mengjun Liang ◽  
Lu Chen ◽  
Zhiyuan Yang ◽  
Zhen Zeng ◽  
Shuijin Yang
Keyword(s):  
Zinc Oxide ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Specific Surface ◽  
Visible Light Irradiation ◽  
Charge Separation ◽  
Facile Hydrothermal Method ◽  
Excellent Photocatalytic Activity ◽  
Efficient Charge ◽  
Visible Light Photocatalytic

ZnO/Bi4V2O[Formula: see text] nanocomposites were prepared via a facile hydrothermal method by loading different amounts of ZnO onto the surface of Bi4V2O[Formula: see text]. The resulting ZnO/Bi4V2O[Formula: see text] composites showed excellent photocatalytic activity than that of pure ZnO under visible light irradiation. When the ratio of ZnO to Bi4V2O[Formula: see text] was 1:1 (ZB2), the photocatalytic activity was best, which could degrade RhB almost completely within 30[Formula: see text]min. The enhanced photocatalytic activity of ZnO/Bi4V2O[Formula: see text] composites could be mainly ascribed to the efficient charge separation and the increased specific surface area. Based on the experimental and bandgap calculations, a possible photocatalytic mechanism was proposed.

In situ nitrogen-doped hollow-TiO2/g-C3N4 composite photocatalysts with efficient charge separation boosting water reduction under visible light

2017 ◽  
Vol 5 (20) ◽  
pp. 9671-9681 ◽  
Author(s):  
Xiaowei Shi ◽  
Mamoru Fujitsuka ◽  
Zaizhu Lou ◽  
Peng Zhang ◽  
Tetsuro Majima
Keyword(s):  
Visible Light ◽  
Charge Separation ◽  
Alternative Energy ◽  
Energy Utilization ◽  
Nitrogen Doped ◽  
Composite Photocatalysts ◽  
Earth Abundant ◽  
Efficient Charge ◽  
Visible Light Driven

The visible-light-driven water splitting process is highly attractive for alternative energy utilization, while developing efficient, earth-abundant, and environmentally friendly photocatalysts for the hydrogen evolution reaction has remained a major challenge.

Metal–organic framework assisted and in situ synthesis of hollow CdS nanostructures with highly efficient photocatalytic hydrogen evolution

2019 ◽  
Vol 48 (17) ◽  
pp. 5649-5655 ◽  
Author(s):  
Yilei Li ◽  
Tian Jin ◽  
Ge Ma ◽  
Yunchao Li ◽  
Louzhen Fan ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Specific Surface ◽  
Surface Area ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Metal Organic Framework ◽  
In Situ Synthesis ◽  
Metal Organic ◽  
Cds Nanostructures

Hollow CdS nanoboxes with a specific surface area of 153 m2 g−1 are synthesized through in situ sulfurizing Cd-MOF-47 with thiourea, which exhibit a greatly improved photocatalytic activity in water splitting to hydrogen (21 654 μmol g−1 h−1).

Efficient Charge Separation of In-Situ Nb-Doped TiO2Nanowires for Photoelectrochemical Water-splitting

2017 ◽  
Vol 2 (9) ◽  
pp. 2822-2827 ◽  
Author(s):  
Zhangliu Tian ◽  
Houlei Cui ◽  
Jijian Xu ◽  
Guilian Zhu ◽  
Feng Shao ◽  
...  
Keyword(s):  
Water Splitting ◽  
Charge Separation ◽  
Photoelectrochemical Water Splitting ◽  
Efficient Charge

Extending the π-electron conjugation in 2D planar graphitic carbon nitride: efficient charge separation for overall water splitting

2019 ◽  
Vol 7 (8) ◽  
pp. 3757-3771 ◽  
Author(s):  
Sankeerthana Bellamkonda ◽  
Ramasamy Shanmugam ◽  
Ranga Rao Gangavarapu
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Charge Separation ◽  
Carbon Nitride ◽  
Pure Water ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Aromatic Rings ◽  
Overall Water Splitting ◽  
Efficient Charge

We report direct overall pure water splitting by visible light excited graphitic carbon nitride incorporated with conjugated aromatic rings without using sacrificial agents.

In situ fabrication of two-dimensional g-C3N4/Ba5Ta4O15 nanosheet heterostructures with efficient charge separations and photocatalytic hydrogen evolution under visible light illumination

2018 ◽  
Vol 47 (12) ◽  
pp. 4360-4367 ◽  
Author(s):  
Erbing Hua ◽  
Gang Liu ◽  
Guan Zhang ◽  
Xiaoxiang Xu
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Light Illumination ◽  
Two Dimensional ◽  
Photocatalytic Hydrogen Evolution ◽  
Face To Face ◽  
In Situ Fabrication ◽  
Visible Light Illumination ◽  
Efficient Charge

Two dimensional g-C3N4/Ba5Ta4O15 nanosheet heterostructures ensure firm anchorage of g-C3N4 onto Ba5Ta4O15 nanosheets as well as a face-to-face contact.

Efficient charge separation between Bi2MoO6 nanosheets and ZnO nanowires for enhanced photoelectrochemical properties

2015 ◽  
Vol 3 (39) ◽  
pp. 19702-19705 ◽  
Author(s):  
Bingjun Jin ◽  
Zhengbo Jiao ◽  
Yingpu Bi
Keyword(s):  
Visible Light ◽  
Charge Separation ◽  
Zno Nanowires ◽  
Photoelectrochemical Properties ◽  
Effective Strategy ◽  
Efficient Charge ◽  
Visible Light Driven ◽  
Thin Nanosheets

We demonstrate a facile and effective strategy for in situ growth of Bi2MoO6 thin-nanosheets on well-aligned ZnO nanowires to construct novel hierarchical hetero-arrays, which exhibit excellent visible-light driven photoelectrochemical performances attributed to the efficient charge separation between Bi2MoO6 and ZnO.

Semiconductor Photocatalysts for Solar-to-Hydrogen Energy Conversion: Recent Advances of CdS

2020 ◽  
Vol 16 ◽  
Author(s):  
Yuxue Wei ◽  
Honglin Qin ◽  
Jinxin Deng ◽  
Xiaomeng Cheng ◽  
Mengdie Cai ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
Noble Metals ◽  
Light Irradiation ◽  
Photocatalytic Hydrogen Evolution ◽  
Theoretical Design ◽  
Recent Developments

Introduction: Solar-driven photocatalytic hydrogen production from water splitting is one of the most promising solutions to satisfy the increasing demands of a rapidly developing society. CdS has emerged as a representative semiconductor photocatalyst due to its suitable band gap and band position. However, the poor stability and rapid charge recombination of CdS restrict its application for hydrogen production. The strategy of using a cocatalyst is typically recognized as an effective approach for improving the activity, stability, and selectivity of photocatalysts. In this review, recent developments in CdS cocatalysts for hydrogen production from water splitting under visible-light irradiation are summarized. In particular, the factors affecting the photocatalytic performance and new cocatalyst design, as well as the general classification of cocatalysts, are discussed, which includes a single cocatalyst containing noble-metal cocatalysts, non-noble metals, metal-complex cocatalysts, metal-free cocatalysts, and multi-cocatalysts. Finally, future opportunities and challenges with respect to the optimization and theoretical design of cocatalysts toward the CdS photocatalytic hydrogen evolution are described. Background: Photocatalytic hydrogen evolution from water splitting using photocatalyst semiconductors is one of the most promising solutions to satisfy the increasing demands of a rapidly developing society. CdS has emerged as a representative semiconductor photocatalyst due to its suitable band gap and band position. However, the poor stability and rapid charge recombination of CdS restrict its application for hydrogen production. The strategy of using a cocatalyst is typically recognized as an effective approach for improving the activity, stability, and selectivity of photocatalysts. Methods: This review summarizes the recent developments in CdS cocatalysts for hydrogen production from water splitting under visible-light irradiation. Results: Recent developments in CdS cocatalysts for hydrogen production from water splitting under visible-light irradiation are summarized. The factors affecting the photocatalytic performance and new cocatalyst design, as well as the general classification of cocatalysts, are discussed, which includes a single cocatalyst containing noble-metal cocatalysts, non-noble metals, metal-complex cocatalysts, metal-free cocatalysts, and multi-cocatalysts. Finally, future opportunities and challenges with respect to the optimization and theoretical design of cocatalysts toward the CdS photocatalytic hydrogen evolution are described. Conclusion: The state-of-the-art CdS for producing hydrogen from photocatalytic water splitting under visible light is discussed. The future opportunities and challenges with respect to the optimization and theoretical design of cocatalysts toward the CdS photocatalytic hydrogen evolution are also described.

scholarly journals In-situ synthesis of CN@La(OH)3 nanocomposite for improved the charge separation and enhanced the photocatalytic activity towards Cr(VI) reduction under visible light

2021 ◽  
pp. 100048
Author(s):  
Amanulla Baishnisha ◽  
Krishnan Divakaran ◽  
Vellaichamy Balakumar ◽  
Venkidusamy Sasirekha ◽  
Chandran Meenakshi ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Charge Separation ◽  
In Situ Synthesis
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