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).

scholarly journals Mechanically Strong, Liquid-Resistant Photothermal Bioplastic Constructed from Cellulose and Metal-Organic Framework for Light-Driven Mechanical Motion

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4449
Author(s):  
Lijian Sun ◽  
Limei Li ◽  
Xianhui An ◽  
Xueren Qian
Keyword(s):  
Prussian Blue ◽  
Thermoelectric Generator ◽  
Metal Organic Framework ◽  
In Situ Synthesis ◽  
High Light ◽  
Hot Press ◽  
Mechanical Motion ◽  
Metal Organic ◽  
Organic Framework

The development of photothermal materials with a high light-to-heat conversion capability is essential for the utilization of clean solar energy. In this work, we demonstrate the use of a novel and sustainable concept involving cellulose liquefaction, rapid gelation, in situ synthesis and hot-press drying to convert cellulose and metal–organic framework (Prussian blue) into a stable photothermal bioplastic that can harvest sunlight and convert it into mechanical motion. As expected, the obtained Prussian blue@cellulose bioplastic (PCBP) can effectively absorb sunlight and the surface can be heated up to 70.3 °C under one sun irradiation (100 mW cm−2). As a demonstration of the practicality of PCBP, it was successfully used to drive a Stirling engine motion. Meanwhile, hot-pressing promotes the densification of the structure of PCBP and, therefore, improves the resistance to the penetration of water/non-aqueous liquids. Moreover, PCBP shows good mechanical properties and thermal stability. Given the excellent photothermal performance and environmentally friendly features of photothermal conversion bioplastic, we envisage this sustainable plastic film could play important roles toward diversified applications: a photothermal layer for thermoelectric generator, agricultural films for soil mulching and photothermal antibacterial activity, among others.

MOF-derived yolk–shell CdS microcubes with enhanced visible-light photocatalytic activity and stability for hydrogen evolution

2017 ◽  
Vol 5 (18) ◽  
pp. 8680-8689 ◽  
Author(s):  
Yun Su ◽  
Dan Ao ◽  
Hong Liu ◽  
Yong Wang
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Metal Organic Framework ◽  
Visible Light Photocatalytic Activity ◽  
Microwave Assisted ◽  
Framework Approach ◽  
Metal Organic ◽  
Visible Light Photocatalytic ◽  
Organic Framework

Unique yolk–shell CdS microcubes with excellent photocatalytic H2-evolution activity and stability are synthesized through a facile microwave-assisted metal–organic-framework approach.

In-situ controlled synthesis of NiFe MOF materials with excellent electrocatalytic performances for water splitting

2021 ◽  
Vol 14 (02) ◽  
pp. 2151011
Author(s):  
Jingwen Jia ◽  
Longfu Wei ◽  
Ziting Guo ◽  
Fang Li ◽  
Changlin Yu ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Water Splitting ◽  
Specific Surface Area ◽  
High Performance ◽  
Alkaline Condition ◽  
High Porosity ◽  
Large Specific Surface Area ◽  
Electrocatalytic Performance

Metal–organic frameworks (MOFs) are the electrocatalytic materials with large specific surface area, high porosity, controllable structure and monodisperse active center, which is a promising candidate for the application of electrochemical energy conversion. However, the electrocatalytic performance of pure MOFs is seriously limited its poor conductivity and stability. In this work, high-performance electrocatalyst was fabricated through combining NiFe/MOF on nickel foam (NF) via in-situ growth strategy. Through rational control of the time and ratio in reaction precursors, we realized the effective manipulation of the growth behavior, and further investigated the electrocatalytic performance in water splitting. The catalyst presented excellent electrocatalytic performance for water splitting, with low overpotential of 260 mV in alkaline condition at a current density of 50 mA[Formula: see text], which is benefited from the large specific surface area and active sites. This study demonstrates that the rational design of NiFe MOF/NF plays a significant role in high-performance electrocatalyst.

Metal–organic framework-guided growth of Mo2C embedded in mesoporous carbon as a high-performance and stable electrocatalyst for the hydrogen evolution reaction

2016 ◽  
Vol 4 (41) ◽  
pp. 16225-16232 ◽  
Author(s):  
M. Qamar ◽  
A. Adam ◽  
B. Merzougui ◽  
A. Helal ◽  
O. Abdulhamid ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Mesoporous Carbon ◽  
High Performance ◽  
Metal Organic Framework ◽  
Nucleation And Growth ◽  
Guided Growth ◽  
Metal Organic ◽  
Organic Framework

Metal–organic framework is utilized as a confined-template for restrained nucleation and growth of Mo2C electrocatalyst for highly efficient water splitting.

scholarly journals In Situ Polymerization of Polypyrrole @ Aluminum Fumarate Metal–Organic Framework Hybrid Nanocomposites for the Application of Wastewater Treatment

Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1764
Author(s):  
Sarah Zayan ◽  
Ahmed Elshazly ◽  
Marwa Elkady
Keyword(s):  
Surface Area ◽  
In Situ Polymerization ◽  
Metal Organic Framework ◽  
Oxidative Polymerization ◽  
Absorption Spectrometry ◽  
Hybrid Nanocomposites ◽  
Bet Surface Area ◽  
Metal Organic ◽  
Organic Framework

Composite metal–organic frameworks combine large and accessible surface areas with low density and high stability. Herein, we present novel nanocomposites of polypyrrole/aluminum fumarate metal–organic framework (PPy/AlFu MOF), which were synthesized via in situ oxidative polymerization with the aim of MOF functionalization to enhance its thermal stability and increase the specific surface area so that these nanocomposites may be used as potential adsorbents. The synthesized nanocomposites were characterized by various techniques, such as powder X-ray diffraction, scanning electron microscopy, and Fourier-transform infrared spectroscopy (FTIR). The successful functionalization of aluminum fumarate MOF was confirmed by FTIR, and the Brunauer–Emmett–Teller (BET) surface area of the PPy/MOF nanocomposite slightly increased from 795 to 809 m2/g. Thermogravimetric analysis data also show that the weight loss of the composite is up to 30% at temperatures up to 500 ℃. Remarkably, lead (50 ppm) sequestration using the composite was tested, and the atomic absorption spectrometry data demonstrate that PPy/MOF is a super-adsorbent for heavy metal ions. This work shows that the novel polymer–MOF composites are promising materials for the selective removal of lead from wastewater streams.

Hierarchical-metal–organic framework-templated Cu0.5Zn0.5In2S4-rGO-g-C3N4: flexible synthesis and enhanced photocatalytic activity

2020 ◽  
Vol 8 (42) ◽  
pp. 22124-22133 ◽  
Author(s):  
Mei-Ling Xu ◽  
Ling-Wang Liu ◽  
Kai Wang ◽  
Yi-Chuan Dou ◽  
Kui Li ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Evolution ◽  
Metal Organic Framework ◽  
Pure Water ◽  
Evolution Rate ◽  
Photocatalytic Hydrogen Evolution ◽  
Hydrogen Evolution Rate ◽  
Metal Organic ◽  
Organic Framework

The g-C3N4-rGO nanosheets are uniformly inserted into hollow Cu0.5Zn0.5In2S4 quaternary sulfide derived from ZnCu-MIM@In-PTA hierarchical-MOFs, which illustrates excellent photocatalytic hydrogen evolution rate even in pure water.

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.

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