Porous direct Z-scheme heterostructures of S-deficient CoS/CdS hexagonal nanoplates for robust photocatalytic H2 generation

CrystEngComm ◽  
2021 ◽  
Author(s):  
Zhihui Li ◽  
Hanchu Chen ◽  
Yanyan Li ◽  
Hui Wang ◽  
Yanru Liu ◽  
...  
Keyword(s):  
Water Splitting ◽  
H2 Production ◽  
Solar Fuels ◽  
Photocatalytic Water Splitting ◽  
H2 Generation ◽  
Earth Abundant ◽  
Semiconductor Heterojunctions ◽  
Photocatalytic H2 Generation ◽  
Hexagonal Nanoplates

Photocatalytic water-splitting with Z-scheme semiconductor heterojunctions is a promising way to achieve renewable solar fuels. Nevertheless, developing earth-abundant direct Z-scheme photocatalytic systems for efficient H2 production is still under-developed. In...

Anchoring Zn0.5Cd0.5S solid solution onto 2D porous Co-CoO nanosheets for highly improved photocatalytic H2 generation

2021 ◽  
Author(s):  
Xueyou Gao ◽  
Deqian Zeng ◽  
Qingru Zeng ◽  
Zongzhuo Xie ◽  
Toyohisha Fujita ◽  
...  
Keyword(s):  
Solid Solution ◽  
Water Splitting ◽  
Noble Metal ◽  
H2 Production ◽  
Two Dimensional ◽  
Photocatalytic Water Splitting ◽  
H2 Generation ◽  
Photocatalytic H2 Generation

Co-based cocatalysts have attracted considerable attention as potential alternatives for the noble-metal (Pt) in photocatalytic water splitting. However, the two-dimensional (2D) porous-structured Co-based cocatalysts toward photocatalytic hydrogen (H2) production application...

scholarly journals Photocatalytic Hydrogen Evolution via Water Splitting: A Short Review

Catalysts ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 655 ◽  
Author(s):  
Yifan Zhang ◽  
Young-Jung Heo ◽  
Ji-Won Lee ◽  
Jong-Hoon Lee ◽  
Johny BajGai ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Solar Energy ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Future Development ◽  
Rational Design ◽  
Short Review ◽  
H2 Production ◽  
H2 Generation ◽  
Photocatalytic H2 Generation

Photocatalytic H2 generation via water splitting is increasingly gaining attention as a viable alternative for improving the performance of H2 production for solar energy conversion. Many methods were developed to enhance photocatalyst efficiency, primarily by modifying its morphology, crystallization, and electrical properties. Here, we summarize recent achievements in the synthesis and application of various photocatalysts. The rational design of novel photocatalysts was achieved using various strategies, and the applications of novel materials for H2 production are displayed herein. Meanwhile, the challenges and prospects for the future development of H2-producing photocatalysts are also summarized.

A drastic improvement in photocatalytic H2 production by TiO2 nanosheets grown directly on Ta2O5 substrates

Nanoscale ◽  
2021 ◽  
Author(s):  
Benedict Osuagwu ◽  
Waseen Raza ◽  
Alexander Tesler ◽  
Patrik Schmuki
Keyword(s):  
Titanium Dioxide ◽  
Water Splitting ◽  
H2 Production ◽  
Single Crystalline ◽  
Photocatalytic Water Splitting ◽  
Semiconducting Material ◽  
Tio2 Nanosheets ◽  
Photocatalytic Applications

Titanium dioxide (TiO2) is the most frequently studied semiconducting material for photocatalytic water splitting. One of the favored forms of TiO2 for photocatalytic applications is layers of erected single-crystalline anatase...

Black Phosphorus‐Based Semiconductor Heterojunctions for Photocatalytic Water Splitting

2020 ◽  
Vol 26 (20) ◽  
pp. 4449-4460 ◽  
Author(s):  
Fulai Liu ◽  
Chen Huang ◽  
Chu‐Xuan Liu ◽  
Rui Shi ◽  
Yong Chen
Keyword(s):  
Water Splitting ◽  
Black Phosphorus ◽  
Photocatalytic Water Splitting ◽  
Semiconductor Heterojunctions

ChemInform Abstract: Earth-Abundant Cocatalysts for Semiconductor-Based Photocatalytic Water Splitting

ChemInform ◽  
2014 ◽  
Vol 46 (3) ◽  
pp. no-no ◽  
Author(s):  
Jingrun Ran ◽  
Jun Zhang ◽  
Jiaguo Yu ◽  
Mietek Jaroniec ◽  
Shi Zhang Qiao
Keyword(s):  
Water Splitting ◽  
Photocatalytic Water Splitting ◽  
Earth Abundant

Earth-abundant cocatalysts for semiconductor-based photocatalytic water splitting

2014 ◽  
Vol 43 (22) ◽  
pp. 7787-7812 ◽  
Author(s):  
Jingrun Ran ◽  
Jun Zhang ◽  
Jiaguo Yu ◽  
Mietek Jaroniec ◽  
Shi Zhang Qiao
Keyword(s):  
Water Splitting ◽  
Cost Effective ◽  
Photocatalytic Water Splitting ◽  
Highly Efficient ◽  
Earth Abundant

Active and robust cocatalysts constructed from earth-abundant elements greatly contribute to the highly efficient, stable and cost-effective photocatalytic water splitting.

A Rapid Solar Reduction Method to TiO2/MoO2/Graphene Nanocomposites for Photocatalytic Water Splitting

2015 ◽  
Vol 1738 ◽  
Author(s):  
Jyothirmayee Aravind.S.S ◽  
Kandalam Ramanujachary ◽  
Timothy D. Vaden ◽  
Amos Mugweru
Keyword(s):  
Water Splitting ◽  
Reduction Method ◽  
High Current Density ◽  
Phase Identification ◽  
Co Catalyst ◽  
Graphene Nanocomposites ◽  
Photocatalytic Water Splitting ◽  
Earth Abundant ◽  
Co Reduction ◽  
Interesting Area

ABSTRACTSemiconductor photocatalysis has emerged as an interesting area of research since the discovery of Honda-Fujishima effect. In this study, TiO2/MoO2/graphene composites have been prepared by a solar radiation-assisted co-reduction method, wherein ammonium tetrathiomolybdate salt and graphite oxide are reduced to MoO2 and graphene respectively along with TiO2. The method involved the utilization of focused pulses of natural sunlight using a simple convex lens, thereby eliminating the need for harmful reducing agents. The compound was characterized by XRD and SEM for phase identification and morphology. The TiO2/MoO2/graphene composite exhibits superior photocatalytic water splitting activity without using a co-catalyst. In addition, we demonstrate the electrocatalytic hydrogen production using this earth abundant catalyst, which shows high current density (60 mA/cm2) and low Tafel slope (47 mV/dec). The hydrogen evolved during photocatalysis was detected by gas chromatography.

Two-dimensional layered Type-II MS2/BiOCl (M = Zr, Hf) van der Waals heterostructures: A promising photocatalysts for hydrogen generation

2021 ◽  
Author(s):  
Francis Opoku ◽  
Osei Akoto ◽  
Samuel Osei-Bonsu Oppong ◽  
Anthony Apeke Adimado
Keyword(s):  
Energy Storage ◽  
Water Splitting ◽  
Hydrogen Generation ◽  
Van Der Waals ◽  
H2 Production ◽  
Type Ii ◽  
Two Dimensional ◽  
Van Der Waals Heterostructures ◽  
Photocatalytic Water Splitting ◽  
Van Der Waals Heterostructure

Sustainable hydrogen (H2) production via photocatalytic water splitting is considered the most promising energy storage, where two-dimensional van der Waals heterostructure, composed of two or more 2D monolayer materials, has...

CdS-Intercalated Nanocomposites for Hydrogen Production of Photocatalytic Water-Splitting

2011 ◽  
Vol 347-353 ◽  
pp. 52-55
Author(s):  
Yao Jun Zhang ◽  
Du Ping Chen ◽  
Li Cai Liu ◽  
Ya Chao Wang
Keyword(s):  
Water Splitting ◽  
Synergistic Effects ◽  
H2 Production ◽  
Layer Spacing ◽  
Photocatalytic Water Splitting ◽  
Quantum Size ◽  
Novel Approach ◽  
Photoelectric Performance ◽  
Production Of Hydrogen ◽  
Visible Spectra

A novel approach for synthesis of CdS-intercalated nanocomposites was investigated by thermal decomposition of cadmium thiourea complex embedded in the interlayer of montmorillonite. XRD results indicated that the incorporation of CdS into the interlayer of montmorillonite led to expansion of the layer spacing. The diffuse reflectance UV-visible spectra showed that the absorption edge of nanocomposites of CdS and montmorillonite was blue-shifted as compared with pure CdS due to quantum size effect. The photoelectric performance of nanocomposites was evaluated by photocatalytic water-splitting for production of hydrogen and the nanocomposites displayed much higher photocatalytic activities of H2 production than that of pure CdS owing to the synergistic effects between CdS and montmorillonite. A probable photocatalytic mechanism was proposed.

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