A 20-core copper(I) nanocluster as electron-hole recombination inhabitor on TiO2 nanosheet for enhancing photocatalytic H2 evolution

Nanoscale ◽  
2021 ◽  
Author(s):  
Yun-Dong Cao ◽  
Hui-Ping Hao ◽  
Huashi Liu ◽  
Di Yin ◽  
Mingliang Wang ◽  
...  
Keyword(s):  
H2 Evolution ◽  
Electron Hole ◽  
Copper Nanoclusters ◽  
Potential Applications ◽  
Structural Modulation ◽  
Hole Recombination ◽  
Photocatalytic H2 Evolution

For the design of atom-precise copper nanoclusters, besides the exploration of their aesthetic cage-like architectures, their structural modulation and potential applications are also the increasing pursue. Herein, an atomic-precise 20-core...

Efficient photocatalytic H2 evolution by hexaniobate nanosheets grafted with copper nanoclusters

ChemPhotoChem ◽  
2022 ◽  
Author(s):  
Barbara Nascimento Nunes ◽  
Detlef W. Bahnemann ◽  
ANTONIO OTAVIO PATROCINIO
Keyword(s):  
H2 Evolution ◽  
Copper Nanoclusters ◽  
Photocatalytic H2 Evolution

Regulating Electron–Hole Separation to Promote Photocatalytic H2 Evolution Activity of Nanoconfined Ru/MXene/TiO2 Catalysts

ACS Nano ◽  
2020 ◽  
Vol 14 (10) ◽  
pp. 14181-14189 ◽  
Author(s):  
Yunpeng Liu ◽  
Yu-Hang Li ◽  
Xiaoyao Li ◽  
Qiao Zhang ◽  
Hao Yu ◽  
...  
Keyword(s):  
H2 Evolution ◽  
Electron Hole ◽  
Photocatalytic H2 Evolution

scholarly journals Controlled Growth and Bandstructure Properties of One Dimensional Cadmium Sulfide Nanorods for Visible Photocatalytic Hydrogen Evolution Reaction

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 619 ◽  
Author(s):  
Rama Krishna Chava ◽  
Namgyu Son ◽  
Yang Soo Kim ◽  
Misook Kang
Keyword(s):  
Reaction Time ◽  
Low Cost ◽  
Chemical Properties ◽  
Metal Sulfide ◽  
H2 Evolution ◽  
Electron Hole ◽  
One Dimensional ◽  
Cds Nanorods ◽  
Hole Recombination ◽  
And Chemical Properties

One dimensional (1D) metal sulfide nanostructures are one of the most promising materials for photocatalytic water splitting reactions to produce hydrogen (H2). However, tuning the nanostructural, optical, electrical and chemical properties of metal sulfides is a challenging task for the fabrication of highly efficient photocatalysts. Herein, 1D CdS nanorods (NRs) were synthesized by a facile and low-cost solvothermal method, in which reaction time played a significant role for increasing the length of CdS NRs from 100 nm to several micrometers. It is confirmed that as the length of CdS NR increases, the visible photocatalytic H2 evolution activity also increases and the CdS NR sample obtained at 18 hr. reaction time exhibited the highest H2 evolution activity of 206.07 μmol.g−1.h−1. The higher H2 evolution activity is explained by the improved optical absorption properties, enhanced electronic bandstructure and decreased electron-hole recombination rate.

Defect-mediated electron–hole separation in an inorganic–organic CdSxSe1−x–DETA solid solution under amine molecule-assisted fabrication and microwave-assisted method for promoting photocatalytic H2 evolution

2019 ◽  
Vol 3 (12) ◽  
pp. 3550-3560 ◽  
Author(s):  
Yao Huo ◽  
Zhen Li ◽  
Jinfeng Zhang ◽  
Kai Dai ◽  
Changhao Liang ◽  
...  
Keyword(s):  
Solid Solution ◽  
Visible Light ◽  
H2 Evolution ◽  
Electron Hole ◽  
Microwave Assisted ◽  
Amine Molecule ◽  
Microwave Assisted Method ◽  
Photocatalytic H2 Evolution ◽  
Visible Light Photocatalytic

Inorganic–organic CdSxSe1−x–DETA solid solution shows high visible light photocatalytic H2 evolution activity.

Optically Detected Magnetic Resonance and Double Beam Photoluminescence of CdS/HgS/CdS Nanoparticles

1998 ◽  
Vol 536 ◽  
Author(s):  
H. Porteanu ◽  
A. Glozman ◽  
E. Lifshitz ◽  
A. Eychmüller ◽  
H. Weller
Keyword(s):  
Optical Properties ◽  
Magnetic Resonance ◽  
Cds Nanoparticles ◽  
Electron Hole ◽  
Cladding Layer ◽  
Double Beam ◽  
Optically Detected Magnetic Resonance ◽  
Optically Detected ◽  
Cladding Layers ◽  
Hole Recombination

AbstractCdS/HgS/CdS nanoparticles consist of a CdS core, epitaxially covered by one or two monolayers of HgS and additional cladding layers of CdS. The present paper describes our efforts to identify the influence of CdS/HgS/CdS interfaces on the localization of the photogenerated carriers deduced from the magneto-optical properties of the materials. These were investigated by the utilization of optically detected magnetic resonance (ODMR) and double-beam photoluminescence spectroscopy. A photoluminescence (PL) spectrum of the studied material, consists of a dominant exciton located at the HgS layer, and additional non-excitonic band, presumably corresponding to the recombination of trapped carriers at the interface. The latter band can be attenuated using an additional red excitation. The ODMR measurements show the existence of two kinds of electron-hole recombination. These electron-hole pairs maybe trapped either at a twin packing of a CdS/HgS interface, or at an edge dislocation of an epitaxial HgS or a CdS cladding layer.

Pre-Industrial Experience in Solar Photocatalytic Mineralization of Real Wastewaters. Application to Pesticide Container Recycling

1999 ◽  
Vol 40 (4-5) ◽  
pp. 123-130 ◽  
Author(s):  
S. Malato ◽  
J. Blanco ◽  
C. Richter ◽  
B. Milow ◽  
M. I. Maldonado
Keyword(s):  
Organic Contaminants ◽  
Toxic Waste ◽  
Experimental Plant ◽  
Electron Hole ◽  
Particulate Suspensions ◽  
Photocatalytic System ◽  
Commercial Pesticide ◽  
Pesticide Container ◽  
By Products ◽  
Hole Recombination

Particulate suspensions of TiO2 irradiated with natural solar tight in a large experimental plant catalyse the oxidation of organic contaminants. The problem in using TiO2 as a photocatalyst is electron/hole recombination. One strategy for inhibiting e−/h+ recombination is to add other (irreversible) electron acceptors to the reaction. In many highly toxic waste waters where degradation of organic pollutants is the major concern, the addition of an inorganic anion to enhance the organic degradation rate may be justified. For better results, these additives should fulfil the following criteria: dissociate into harmless by-products and lead to the formation of ·OH or other oxidising agents. In this paper, we attempt to demonstrate the optimum conditions for the treatment of commercial pesticide rinsates found in the wastewater produced by a pesticide container recycling plant. The experiments were performed in one of the pilot plants of the largest solar photocatalytic system in Europe, the Detoxification Plants of the Plataforma Solar de Almería (PSA), in Spain. After testing ten different commercial pesticides, results show that peroxydisulphate enhances the photocatalytic miniralization of all of them. This study is part of an extensive project focused on the design of a solar photocatalytic plant for decontamination of agricultural rinsates in Almería (Spain).

P-Type Cobalt Phosphide Composites (CoP–Co2P) Decorated on Titanium Oxide for Enhanced Noble-Metal-Free Photocatalytic H2 Evolution Activity

Langmuir ◽  
2021 ◽  
Vol 37 (11) ◽  
pp. 3321-3330
Author(s):  
Rong Liang ◽  
Yanwen Wang ◽  
Chao Qin ◽  
Xuehua Chen ◽  
Zhizhen Ye ◽  
...  
Keyword(s):  
Titanium Oxide ◽  
Noble Metal ◽  
H2 Evolution ◽  
Metal Free ◽  
Cobalt Phosphide ◽  
P Type ◽  
Photocatalytic H2 Evolution
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