A co-catalyst free, eco-friendly, novel visible light absorbing iron based complex oxide nanocomposites for enhanced photocatalytic hydrogen evolution

2018 ◽  
Vol 43 (31) ◽  
pp. 14417-14426 ◽  
Author(s):  
T. Vijayaraghavan ◽  
N. Lakshmana Reddy ◽  
M.V. Shankar ◽  
S. Vadivel ◽  
Anuradha Ashok
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Complex Oxide ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Evolution ◽  
Catalyst Free ◽  
Iron Based

scholarly journals Photocatalytic hydrogen evolution by co-catalyst-free TiO2/C bulk heterostructures synthesized under mild conditions

RSC Advances ◽  
2020 ◽  
Vol 10 (21) ◽  
pp. 12519-12534 ◽  
Author(s):  
Claudio Imparato ◽  
Giuseppina Iervolino ◽  
Marzia Fantauzzi ◽  
Can Koral ◽  
Wojciech Macyk ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Evolution ◽  
Mild Conditions ◽  
Catalyst Free

Defective TiO2/C bulk heterostructures exhibit visible light photoresponsivity and remarkable H2 evolution rates under both UV and visible light irradiation.

scholarly journals Robust direct Z-scheme exciton transfer dynamics by architecting 3D BiOI MF-supported non-stoichiometric Cu0.75In0.25S NC nanocomposite for co-catalyst-free photocatalytic hydrogen evolution

RSC Advances ◽  
2022 ◽  
Vol 12 (3) ◽  
pp. 1265-1277
Author(s):  
Deeptimayee Prusty ◽  
Sriram Mansingh ◽  
Lopamudra Acharya ◽  
Lekha Paramanik ◽  
K. M. Parida
Keyword(s):  
Charge Transfer ◽  
Hydrogen Evolution ◽  
Transfer Mechanism ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Evolution ◽  
Charge Transfer Mechanism ◽  
Catalyst Free ◽  
Exciton Transfer

Photon-assisted hydrogen evolution over a co-catalyst-free CIS–BOI composite abiding by the direct Z-scheme charge transfer mechanism.

Heterojunction ZnWO4/ZnFe2O4 composites with concerted effects and integrated properties for enhanced photocatalytic hydrogen evolution

2018 ◽  
Vol 8 (4) ◽  
pp. 1083-1093 ◽  
Author(s):  
Naveen Kumar Veldurthi ◽  
Neerugatti KrishnaRao Eswar ◽  
Satyapaul A. Singh ◽  
Giridhar Madras
Keyword(s):  
Hydrogen Evolution ◽  
Precipitation Method ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Evolution ◽  
Catalyst Free ◽  
Co Precipitation

A novel co-catalyst free ZnWO4/ZnFe2O4 heterojunction composite was successfully synthesized using a facile co-precipitation method for photocatalytic H2 evolution.

Imidazole substituted Zinc (II) Phthalocyanines for co-catalyst-free Photoelectrochemical and Photocatalytic Hydrogen Evolution: Influence of the Anchoring Group

2021 ◽  
Author(s):  
Abdulcelil Yüzer ◽  
Eminegul Genc ◽  
Gülbin Kurtay ◽  
Gizem Yanalak ◽  
Emre Aslan ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Zinc Phthalocyanine ◽  
H2 Evolution ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Evolution ◽  
Catalyst Free ◽  
Anchoring Group

Novel zinc phthalocyanine derivatives, ZnPc-1 and ZnPc-2, consisting of one and four imidazole units, respectively, have been synthesized and utilized as panchromatic photosensitizers for the photocatalytic and photoelectrochemical H2 evolution....

scholarly journals Preparation of NiS/ZnIn2S4 as a superior photocatalyst for hydrogen evolution under visible light irradiation

2013 ◽  
Vol 4 ◽  
pp. 949-955 ◽  
Author(s):  
Liang Wei ◽  
Yongjuan Chen ◽  
Jialin Zhao ◽  
Zhaohui Li
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Evolution ◽  
X Ray ◽  
Transmission Electron

In this study, NiS/ZnIn2S4 nanocomposites were successfully prepared via a facile two-step hydrothermal process. The as-prepared samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM). Their photocatalytic performance for hydrogen evolution under visible light irradiation was also investigated. It was found that the photocatalytic hydrogen evolution activity over hexagonal ZnIn2S4 can be significantly increased by loading NiS as a co-catalyst. The formation of a good junction between ZnIn2S4 and NiS via the two step hydrothermal processes is beneficial for the directional migration of the photo-excited electrons from ZnIn2S4 to NiS. The highest photocatalytic hydrogen evolution rate (104.7 μmol/h), which is even higher than that over Pt/ZnIn2S4 nanocomposite (77.8 μmol/h), was observed over an optimum NiS loading amount of 0.5 wt %. This work demonstrates a high potential of the developing of environmental friendly, cheap noble-metal-free co-catalyst for semiconductor-based photocatalytic hydrogen evolution.

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