CuO@Cu@NiAl-LDH with Cu/Cu Valence Synergy and Core-Shell Structure for Highly Selective Generation of CH.

Photocatalytic CO reduction to produce C products remains a challenge. Herein, CuO@Cu@NiAl-LDH composites with three-dimensional ordered core-shell structures were successfully prepared, and the effects of CuO with different exposed surfaces on CO photoreduction were investigated. The synergistic effect of zero-valent Cu and Cu as intermediate electron mediators retains more photogenerated electrons and the Z-scheme heterojunction formed between CuO and NiAl-LDH leads to the enhancement of C selectivity.

Bismuth-Metal and Carbon Quantum Dot Co-Doped NiAl-LDH Heterojunctions for Promoting the Photothermal Catalytic Reduction of CO.

The quest for sustainable photocatalytic CO reduction reactions (CRR) emphasizes the development of high-efficiency, economically viable, and durable photocatalysts. A novel approach involving the synthesis of Bi-CDs/LDH heterojunctions, incorporating plasma metals and carbon quantum dots via hydrothermal and co-precipitation methods, yields remarkable results. The optimized BCL-4 photocatalyst demonstrates exceptional performance, with CH and CH yields of 1.

A Review on BiWO-Based Materials for Photocatalytic CO Reduction.

Photocatalytic reduction of CO (PCR) technology offers the capacity to transmute solar energy into chemical energy through an eco-friendly and efficacious process, concurrently facilitating energy storage and carbon diminution, this innovation harbors significant potential for mitigating energy shortages and ameliorating environmental degradation. Bismuth tungstate (BiWO) is distinguished by its robust visible light absorption and distinctive perovskite-type crystal architecture, rendering it highly efficiency in PCR. In recent years, numerous systematic strategies have been investigated for the synthesis and modification of BiWO to enhance its photocatalytic performance, aiming to achieve superior applications.

Constructing Cu defect band within TiO and supporting NiO nanoparticles for efficient CO photoreduction.

Effectively harnessing solar energy for the conversion of CO into valuable chemical energy presents a viable solution to address energy scarcity and climate change concerns. Nonetheless, the limited light absorption and sluggish charge kinetics significantly hinder the photoreduction of CO. In this study, we employed a facile sol-gel method combined with wetness impregnation to synthesize Cu-doped TiO coated with NiO nanoparticles.

Metal-organic frameworks (MOFs) for photoelectrocatalytic (PEC) reducing carbon dioxide (CO) to hydrocarbon fuels.

MOF-based photoelectrocatalysis (PEC) using CO as an electron donor offers a green, clean, and extensible way to make hydrocarbon fuels under more tolerant conditions. Herein, basic principles of PEC reduction of CO and the preparation methods and characterization techniques of MOF-based materials are summarized. Furthermore, three applications of MOFs for improving the photoelectrocatalytic performance of CO reduction are described: (i) as photoelectrode alone; (ii) as a co-catalyst of semiconductor photoelectrode or as a substrate for loading dyes, quantum dots, and other co-catalysts; (iii) as one of the components of heterojunction structure.

BiOCl/g-CN/CdZnS Double Z-Scheme Heterojunction Photocatalyst for Highly Selective CO Reduction to Methane.

Solar-energy-driven CO hydrogenation is a promising strategy to alleviate the climate crisis. Methane is a desirable derivative of CO reduction. However, developing a photocatalyst for highly active and selective CH generation remains challenging.

Research progress on photocatalytic reduction of CO based on ferroelectric materials.

Transforming CO into renewable fuels or valuable carbon compounds could be a practical means to tackle the issues of global warming and energy crisis. Photocatalytic CO reduction is more energy-efficient and environmentally friendly, and offers a broader range of potential applications than other CO conversion techniques. Ferroelectric materials, which belong to a class of materials with switchable polarization, are attractive candidates as catalysts due to their distinctive and substantial impact on surface physical and chemical characteristics.

Recent Progress of Covalent Organic Frameworks-Based Materials in Photocatalytic Applications: A Review.

Covalent organic frameworks (COFs) are one type of porous organic materials linked by covalent bonds. COFs materials exhibit many outstanding characteristics such as high porosity, high chemical and thermal stability, large specific surface area, efficient electron transfer efficiency, and the ability for predesigned structures. These exceptional advantages enable COFs materials to exhibit remarkable performance in photocatalysis.

Constructing CoAl-LDO/MoO S-scheme heterojunctions for enhanced photocatalytic CO reduction.

Converting CO into chemicals and fuels by solar energy can alleviate global warming and solve the energy crisis. In this work, CoAl-LDO/MoO (LDO/MO) composites were successfully prepared and achieved efficient CO reduction under visible light. The CoAl-layered double oxides (CoAl-LDO) evolved from CoAl-layered double hydroxide (CoAl-LDH) exhibited a more robust structure, broader light absorption, and improved CO adsorption ability.

Research Progress on Photocatalytic CO Reduction Based on Perovskite Oxides.

Photocatalytic CO reduction to valuable fuels is a promising way to alleviate anthropogenic CO emissions and energy crises. Perovskite oxides have attracted widespread attention as photocatalysts for CO reduction by virtue of their high catalytic activity, compositional flexibility, bandgap adjustability, and good stability. In this review, the basic theory of photocatalysis and the mechanism of CO reduction over perovskite oxide are first introduced.

Recent advances in core-shell structured catalysts for low-temperature NH-SCR of NO.

Ammonia selective catalytic reduction (NH-SCR) of nitrogen oxides is an effective and well-established technology for NO removal, but current commercial denitrification catalysts based on VO-WO/TiO have some obvious disadvantages, including narrow operating temperature windows, toxicity, poor hydrothermal stability, and unsatisfied SO/HO tolerance. To overcome these drawbacks, it is imperative to investigate new types of highly efficient catalysts. In order to design catalysts with outstanding selectivity, activity, and anti-poisoning ability, core-shell structured materials have been widely applied in the NH-SCR reaction, which exhibits numerous advantages including the large surface area, the strong synergy interaction of core-shell materials, the confinement effect, and the shielding effect from the shell layer to protect the core.

Recent progress of cocatalysts loaded on carbon nitride for selective photoreduction of CO to CH.

A photocatalytic system driven by solar light is one of the promising strategies for converting CO into valuable energy. The reduction of CO to CH is widely studied since CH has a high energy density as the main component of nonrenewable natural gas. Therefore, it is necessary to develop semiconductor materials with high photocatalytic activity and CH selectivity.

Fabrication and characterization of Z-scheme BiOCl/C/CuO heterojunction nanocomposites as efficient catalysts for the photocatalytic reduction of CO.

The photocatalytic reduction of CO to hydrocarbons is expected to simultaneously alleviate the energy crisis and greenhouse effect. Herein, the ternary BiOCl/C/CuO catalysts with different mass ratios were compounded using a simple hydrothermal method, revealing better photocatalytic activity than the monomer. In the absence of sacrificial agents and photosensitizers, 25% BiOCl/C/CuO showed optimal photocatalytic performance.

Ti C -modified g-C N /MoSe S-Scheme Heterojunction with Full-Spectrum Response for CO Photoreduction to CO and CH.

Energy shortage and global warming caused by the extensive use of fossil fuels are urgent problems to be solved at present. Photoreduction of CO is considered to be a feasible solution. The ternary composite catalyst g-C N /Ti C /MoSe was synthesized by hydrothermal method, and its physical and chemical properties were studied by an array of characterization and tests.

Recent Progress of Single-Atom Photocatalysts Applied in Energy Conversion and Environmental Protection.

Photocatalysis driven by solar energy is a feasible strategy to alleviate energy crises and environmental problems. In recent years, significant progress has been made in developing advanced photocatalysts for efficient solar-to-chemical energy conversion. Single-atom catalysts have the advantages of highly dispersed active sites, maximum atomic utilization, unique coordination environment, and electronic structure, which have become a research hotspot in heterogeneous photocatalysis.

Converting CO into Value-Added Products by Cu O-Based Catalysts: From Photocatalysis, Electrocatalysis to Photoelectrocatalysis.

Converting CO into value-added products by photocatalysis, electrocatalysis, and photoelectrocatalysis is a promising method to alleviate the global environmental problems and energy crisis. Among the semiconductor materials applied in CO catalytic reduction, Cu O has the advantages of abundant reserves, low price and environmental friendliness. Moreover, Cu O has unique adsorption and activation properties for CO , which is conducive to the generation of C products through CC coupling.

Recent Progress of Three-dimensionally Ordered Macroporous (3DOM) Materials in Photocatalytic Applications: A Review.

In recent years, three-dimensionally ordered macroporous (3DOM) materials have attracted tremendous interest in the field of photocatalysis due to the periodic spatial structure and unique physicochemical properties of 3DOM catalysts. In this review, the fundamentals and principles of 3DOM photocatalysts are briefly introduced, including the overview of 3DOM materials, the photocatalytic principles based on 3DOM materials, and the advantages of 3DOM materials in photocatalysis. The preparation methods of 3DOM materials are also presented.

Recent Advances and Perspectives of Core-Shell Nanostructured Materials for Photocatalytic CO Reduction.

Photocatalytic CO conversion into solar fuels is a promising technology to alleviate CO emissions and energy crises. The development of core-shell structured photocatalysts brings many benefits to the photocatalytic CO reduction process, such as high conversion efficiency, sufficient product selectivity, and endurable catalyst stability. Core-shell nanostructured materials with excellent physicochemical features take an irreplaceable position in the field of photocatalytic CO reduction.

Progress and perspectives on 1D nanostructured catalysts applied in photo(electro)catalytic reduction of CO.

Reducing CO into value-added chemicals and fuels by artificial photosynthesis (photocatalysis and photoelectrocatalysis) is one of the considerable solutions to global environmental and energy issues. One-dimensional (1D) nanostructured catalysts (nanowires, nanorods, nanotubes and so on.) have attracted extensive attention due to their superior light-harvesting ability, co-catalyst loading capacity, and high carrier separation rate.

A review on TiO-based materials for photocatalytic CO reduction.

Photocatalytic CO reduction technology has a broad potential for dealing with the issues of energy shortage and global warming. As a widely studied material used in the photocatalytic process, titanium dioxide (TiO) has been continuously modified and tailored for more desirable application. Recently, the defective/reduced titanium dioxide (TiO) catalyst has attracted broad attention due to its excellent photocatalytic performance for CO reduction.

Carbon quantum dots-modified Z-scheme BiOCl/NiAl-LDH for significantly boosting photocatalytic CO reduction.

Photocatalytic reduction of CO to high-energy products is an effective way to utilize solar energy and mitigate the greenhouse effect. In this paper, a series of CQDs/BiOCl/NiAl-LDH (C/BOC/LDH) photocatalysts were prepared via a one-pot hydrothermal method, demonstrated excellent photocatalytic CO reduction performance. In the case of only water without any photosensitizer and sacrificial agent, the CO production rate on C/0.

Study on the Effect of Pyrolysis Conditions on the Combustion Behavior and Char Structure Evolution.

Pyrolysis polygeneration technology has been widely applied due to its wide adaptability to coal types and mild reaction conditions. In this paper, the in situ process test combining pyrolysis and combustion of Pingshuo coal was carried out using a thermogravimetric analyzer and a fluidized-bed reactor. The influence of pyrolysis conditions on the combustion behavior and char structure was studied.