scholarly journals Recent Advances in MOF-based Nanocatalysts for Photo-Promoted CO2 Reduction Applications

Catalysts ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 658 ◽  
Author(s):  
Liu ◽  
Wang ◽  
Liu ◽  
Qiao ◽  
Lv ◽  
...  
Keyword(s):  
Catalytic Mechanism ◽  
Co2 Reduction ◽  
Development Trend ◽  
Photocatalytic Reduction ◽  
Research Progress ◽  
Existing Problems ◽  
Clean Environment ◽  
Metal Organic ◽  
Reduction Of Co2 ◽  
Structure Investigations

The conversion of CO2 to valuable substances (methane, methanol, formic acid, etc.) by photocatalytic reduction has important significance for both the sustainable energy supply and clean environment technologies. This review systematically summarized recent progress in this field and pointed out the current challenges of photocatalytic CO2 reduction while using metal-organic frameworks (MOFs)-based materials. Firstly, we described the unique advantages of MOFs based materials for photocatalytic reduction of CO2 and its capacity to solve the existing problems. Subsequently, the latest research progress in photocatalytic CO2 reduction has been documented in detail. The catalytic reaction process, conversion efficiency, as well as the product selectivity of photocatalytic CO2 reduction while using MOFs based materials are thoroughly discussed. Specifically, in this review paper, we provide the catalytic mechanism of CO2 reduction with the aid of electronic structure investigations. Finally, the future development trend and prospect of photocatalytic CO2 reduction are anticipated.

scholarly journals Recent Advances of Photocatalytic Hydrogenation of CO2 to Methanol

Catalysts ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 94
Author(s):  
Gajanan Y. Shinde ◽  
Abhishek S. Mote ◽  
Manoj B. Gawande
Keyword(s):  
Carbon Dioxide Emissions ◽  
Co2 Reduction ◽  
Value Added ◽  
Hydrocarbon Fuel ◽  
Photocatalytic Reduction ◽  
Environmental Crisis ◽  
Mixed Metal Oxide ◽  
Metal Organic ◽  
Reduction Of Co2 ◽  
Value Added Products

Constantly increasing hydrocarbon fuel combustion along with high levels of carbon dioxide emissions has given rise to a global energy crisis and environmental alterations. Photocatalysis is an effective technique for addressing this energy and environmental crisis. Clean and renewable solar energy is a very favourable path for photocatalytic CO2 reduction to value-added products to tackle problems of energy and the environment. The synthesis of various products such as CH4, CH3OH, CO, EtOH, etc., has been expanded through the photocatalytic reduction of CO2. Among these products, methanol is one of the most important and highly versatile chemicals widely used in industry and in day-to-day life. This review emphasizes the recent progress of photocatalytic CO2 hydrogenation to CH3OH. In particular, Metal organic frameworks (MOFs), mixed-metal oxide, carbon, TiO2 and plasmonic-based nanomaterials are discussed for the photocatalytic reduction of CO2 to methanol. Finally, a summary and perspectives on this emerging field are provided.

Synergistic effect of phosphomolybdic acid on rhodium-based metal-organic frameworks for the efficient selective photocatalytic reduction of CO2 to CO

2021 ◽  
Author(s):  
Yurong Shan ◽  
Dexiang Liu ◽  
Chunyan Xu ◽  
Peng Zhan ◽  
Hui Wang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Electronic Structure ◽  
Synergistic Effect ◽  
Metal Organic Frameworks ◽  
Phosphomolybdic Acid ◽  
Photocatalytic Reduction ◽  
Structure And Morphology ◽  
Spherical Structure ◽  
Metal Organic ◽  
Reduction Of Co2

In this work, PMA@NH2-MIL-68(Rh) with a mangosteen spherical structure was successfully synthesized by a hydrothermal method for the photocatalytic reduction of carbon dioxide. The electronic structure and morphology of the...

scholarly journals Porous Copper/Zinc Bimetallic Oxides Derived from MOFs for Efficient Photocatalytic Reduction of CO2 to Methanol

Catalysts ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1127
Author(s):  
Zhenyu Wang ◽  
Xiuling Jiao ◽  
Dairong Chen ◽  
Cheng Li ◽  
Minghui Zhang
Keyword(s):  
High Activity ◽  
Oxide Catalyst ◽  
Fast Rate ◽  
Metal Organic Framework ◽  
Photocatalytic Reduction ◽  
Simple Preparation ◽  
Porous Copper ◽  
Metal Organic ◽  
Copper Zinc ◽  
Reduction Of Co2

A novel metal organic framework (MOF)-derived porous copper/zinc bimetallic oxide catalyst was developed for the photoreduction of CO2 to methanol at a very fast rate of 3.71 mmol gcat−1 h−1. This kind of photocatalyst with high activity, selectivity and a simple preparation catalyst provides promising photocatalyst candidates for reducing CO2 to methanol.

scholarly journals Research progress of carbon-assisted etching of silicon nanostructures

2021 ◽  
Vol 2076 (1) ◽  
pp. 012060
Author(s):  
Xiaoyu Yang ◽  
Ling Tong ◽  
Lin Wu ◽  
Baoguo Zhang ◽  
Zhiyuan Liao ◽  
...  
Keyword(s):  
Large Scale ◽  
Low Cost ◽  
Lithium Ion ◽  
Development Trend ◽  
Research Progress ◽  
Silicon Nanostructures ◽  
Storage Devices ◽  
Existing Problems ◽  
Energy Conversion And Storage ◽  
Silicon Based

Abstract Silicon nanostructures are attracting growing attention due to their properties and promising application prospects in solar energy conversion and storage devices, thermoelectric devices, lithium-ion batteries, and biosensing technologies. The large-scale and low-cost preparation of silicon nanostructures is critical for silicon-based advanced functional devices commercialization. In this paper, the feasibility and mechanism of silicon nanostructure fabricated by non-metallic carbon catalytic etching, as well as the currently existing problems and future development trend are reviewed.

scholarly journals Research Status and Development Trend of Magnetic Fluid Acceleration Sensors

2021 ◽  
pp. 10-15
Author(s):  
Mu Xueyu ◽  
Yang Shaojie ◽  
Kong Xiangdong
Keyword(s):  
General Structure ◽  
Inertial Mass ◽  
Development Trend ◽  
Research Progress ◽  
Acceleration Sensor ◽  
Magnetic Liquid ◽  
Existing Problems ◽  
Acceleration Sensors ◽  
New Type ◽  
The Difference

As a new type of accelerometer, in recent years, the magnetic liquid acceleration sensor has attracted widespread attention worldwide, and related research results have also continued to emerge. This article mainly introduces the theoretical basis and general structure of the magnetic liquid acceleration sensor, and according to the difference of inertial mass, briefly describes the research progress of the magnetic liquid acceleration sensor by national and foreign scholars in recent years and some in existing problems. Finally, suggestions and prospects for the future development trend of the magnetic liquid acceleration sensor are given.

scholarly journals Photoreduction of Carbon Dioxide to Methanol over Copper Based Zeolitic Imidazolate Framework-8: A New Generation Photocatalyst

Catalysts ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 581 ◽  
Author(s):  
Sonam Goyal ◽  
Maizatul Shaharun ◽  
Chong Kait ◽  
Bawadi Abdullah ◽  
Mariam Ameen
Keyword(s):  
Photocatalytic Activity ◽  
Photoelectron Spectroscopy ◽  
Ammonium Hydroxide ◽  
Photocatalytic Reduction ◽  
Zeolitic Imidazolate Framework ◽  
X Ray ◽  
Efficient Reduction ◽  
Vis Spectroscopy ◽  
Metal Organic ◽  
Reduction Of Co2

The efficient reduction of CO2 into valuable products such as methanol, over metal-organic frameworks (MOFs) based catalyst, has received much attention. The photocatalytic reduction is considered the most economical method due to the utilization of solar energy. In this study, Copper (II)/Zeolitic Imidazolate Framework-8 (Cu/ZIF-8) catalysts were synthesized via a hydrothermal method for photocatalytic reduction of CO2 to methanol. The synthesized catalysts were characterized by X-ray Photoelectron Spectroscopy (XPS), Field Emission Scanning Electron Microscopy (FESEM) coupled with Energy Dispersive X-ray (EDX), Ultraviolet-visible (UV-vis) spectroscopy, and X-Ray Diffraction (XRD). The host ZIF-8, treated with 2 mmol copper prepared in 2M ammonium hydroxide solution showed the highest photocatalytic activity. The crystal structures of ZIF-8 and 2Cu/ZIF-8N2 catalysts were observed as cubic and orthorhombic, respectively and the XPS analysis confirmed the deposition of Cu (II) ions over ZIF-8 surface among all the prepared catalysts. The orthorhombic structure, nano-sized crystals, morphology and Cu loading of the 2Cu/ZIF-8N2 catalyst were the core factors to influence the photocatalytic activity. The yield of Methanol was found to be 35.82 µmol/L·g after 6 h of irradiations on 2Cu/ZIF-8N2 catalyst in the wavelength range between 530–580 nm. The copper-based ZIF-8 catalyst has proven as an alternative approach for the economical photocatalytic reduction of CO2 to CH3OH.

scholarly journals Iron(iii)-bipyridine incorporated metal–organic frameworks for photocatalytic reduction of CO2 with improved performance

2021 ◽  
Vol 50 (1) ◽  
pp. 384-390
Author(s):  
Yuan-Ping Wei ◽  
Sizhuo Yang ◽  
Peng Wang ◽  
Jin-Han Guo ◽  
Jier Huang ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Photocatalytic Reduction ◽  
Metal Organic ◽  
Improved Performance ◽  
Reduction Of Co2

A novel MOF UiO-68-Fe-bpy was constructed by post-synthetic modification of a Zr(iv)-based MOF UiO-68-NH2 as a photocatalyst for CO2 reduction.

Research progress over Cu2O/n-type semiconductor composites in photocatalysis

2021 ◽  
Vol 02 ◽  
Author(s):  
Yonghui Zhang ◽  
Yatong Shi ◽  
Shiyu Xie ◽  
Mingming Liu ◽  
Junli Chen ◽  
...  
Keyword(s):  
Catalytic Mechanism ◽  
Low Cost ◽  
Co2 Reduction ◽  
Research Progress ◽  
Environmental Friendliness ◽  
Preparation Methods ◽  
Photocatalytic Application ◽  
Narrow Bandgap ◽  
Type Semiconductor

: Photocatalysis is a feasible technology to solve energy shortage and environmental pollution by using solar energy. Semiconductor photocatalysts with low cost, high stability and environmental friendliness are demonstrated advantages for the production of solar fuel, CO2 reduction, and degradation of pollutants. Among them, Cu2O presents numerous potential for photocatalysis because of its narrow bandgap and high activity under visible light. However, the rapid recombination of photoinduced electron-hole pairs and the instability of Cu2O under light irradiation limit its photocatalytic performance. In order to solve the above issues, researchers prefer to incorporate Cu2O with n-type semiconductors to design p-n heterojunction composites, thus regulating the band structure, promoting the separation and transfer of electrons and holes, and accelerating the redox reaction onto the surface. In this manuscript, the preparation methods of Cu2O/n-type semiconductor composites such as hydrothermal method, electrodeposition method, and in situ method are concluded, the photocatalytic applications including CO2 reduction, hydrogen production, and degradation are presented, and the catalytic mechanism like Z-scheme, p-n heterojunction, etc. are discussed, respectively. This review also proposes that there are still challenges in broadening the photocatalytic application of Cu2O/n-type semiconductor composites.

scholarly journals Defect Engineering on Carbon-Based Catalysts for Electrocatalytic CO2 Reduction

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Dongping Xue ◽  
Huicong Xia ◽  
Wenfu Yan ◽  
Jianan Zhang ◽  
Shichun Mu
Keyword(s):  
High Performance ◽  
Carbon Materials ◽  
Catalytic Mechanism ◽  
Low Cost ◽  
Co2 Reduction ◽  
Research Progress ◽  
Long Term Stability ◽  
Challenges And Opportunities ◽  
Carbon Based Nanomaterials ◽  
Carbon Based

Abstract Electrocatalytic carbon dioxide (CO2) reduction (ECR) has become one of the main methods to close the broken carbon cycle and temporarily store renewable energy, but there are still some problems such as poor stability, low activity, and selectivity. While the most promising strategy to improve ECR activity is to develop electrocatalysts with low cost, high activity, and long-term stability. Recently, defective carbon-based nanomaterials have attracted extensive attention due to the unbalanced electron distribution and electronic structural distortion caused by the defects on the carbon materials. Here, the present review mainly summarizes the latest research progress of the construction of the diverse types of defects (intrinsic carbon defects, heteroatom doping defects, metal atomic sites, and edges detects) for carbon materials in ECR, and unveil the structure–activity relationship and its catalytic mechanism. The current challenges and opportunities faced by high-performance carbon materials in ECR are discussed, as well as possible future solutions. It can be believed that this review can provide some inspiration for the future of development of high-performance ECR catalysts.

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