Metal–organic framework‐based heterojunction photocatalysts for organic pollutant degradation: design, construction, and performances

Journal of Chemical Technology & Biotechnology, Journal Year: 2022, Volume and Issue: 97(10), P. 2675 - 2693

Published: April 12, 2022

Abstract Heterogeneous photocatalysis has been considered one of the most attractive alternative routes to transforming naturally abundant, clean, and sustainable solar energy into chemical energy. Nowadays, popular heterogeneous photocatalyst, titanium dioxide, already found applications for water splitting produce hydrogen oxygen, degradation organic pollutants, air purification, creation self‐cleaning coatings. However, TiO 2 a significant limitation: large band gap (3.0–3.4 eV) that makes it impossible use anything other than ultraviolet illumination initiate photocatalytic processes. With focus on efficient solar‐energy utilization, development new photocatalysts are sensitive visible light is an important direction in theory practice photocatalysis. In this regard, metal–organic frameworks (MOFs) route; they have emerged as interesting class materials photoreactions due their flexible tunability composition, structure, functional properties, along with facilitated adsorption towards chemicals absorption. Moreover, can be composed semiconductors heterojunctions (e.g., type‐II, Z‐scheme, S‐scheme), whose effectiveness photogenerated charge separation proven by many examples. The present critical review reports progress over last 5 years preparation activity framework‐based heterojunction pollutants. © 2022 Society Chemical Industry (SCI).

Language: Английский

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Photocatalytic Conversion of Methane: Current State of the Art, Challenges, and Future Perspectives

ACS Environmental Au, Journal Year: 2023, Volume and Issue: 3(5), P. 252 - 276

Published: June 20, 2023

With 28-34 times the greenhouse effect of CO

Language: Английский

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Frustrated Lewis Pairs on In(OH)_3–x Facilitate Photocatalytic CO₂ Reduction

ACS Catalysis, Journal Year: 2023, Volume and Issue: 13(9), P. 6214 - 6221

Published: April 21, 2023

Photocatalysis is promising for the reduction of CO2 into fuels and chemicals under mild conditions but still a challenge due to inert nature CO2. Herein, ZnIn2S4/In(OH)3–x (ZIOS) heterojunction was developed visible-light-driven reduction, where ZnIn2S4 (ZIS) harvests light In(OH)3–x with frustrated Lewis pairs (FLPs) activates The hydroxyl-deficient vacancies (OHVs) act as acid, adjacent hydroxyl groups serve base form FLPs. ZIOS composites are fabricated via partial sulfurization Zn–In–O oxide, constructing type II that facilitates photogenerated electron transfer from reduce FLP-activated on In(OH)3–x. as-prepared exhibit CO formation rate 1945.5 μmol·g–1·h–1, which about 2.76-fold higher than over ZnIn2S4, suppress hydrogen evolution CO/H2 ratio increasing 0.436 1.6 ZIOS. This work provides insight design efficient photocatalysts.

Language: Английский

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A Critical Review of Machine Learning Techniques on Thermoelectric Materials

The Journal of Physical Chemistry Letters, Journal Year: 2023, Volume and Issue: 14(7), P. 1808 - 1822

Published: Feb. 10, 2023

Thermoelectric (TE) materials can directly convert heat to electricity and vice versa have broad application potential for solid-state power generation refrigeration. Over the past few decades, efforts been made develop new TE with high performance. However, traditional experiments simulations are expensive time-consuming, limiting development of materials. Machine learning (ML) has increasingly applied study in recent years. This paper reviews progress ML-based material research. The ML predicting optimizing properties materials, including electrical thermal transport optimization functional targeted properties, is reviewed. Finally, future research directions discussed.

Language: Английский

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Self‐Supported Earth‐Abundant Carbon‐Based Substrates in Electrocatalysis Landscape: Unleashing the Potentials Toward Paving the Way for Water Splitting and Alcohol Oxidation

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 14(16)

Published: Dec. 31, 2023

Abstract In the vast realm of scientific inquiry, pursuit hydrogen fuel production through electrochemical water splitting offers a promising gateway to green energy generation, alleviating challenges posed by resource scarcity. However, conventional encounters hurdles like low efficiency and sluggish oxygen evolution reaction (OER), which prompt searchers seek for alternative oxidation process. Significant strides are made in electrocatalytic research employing polymeric binders, resulting commendable catalytic activity minimal electron migration resistance. Yet, pivotal breakthrough this rapidly evolving field lies innovative conception carbon‐based self‐supported electrocatalysts, heralding trajectory ahead. This review delves into essential electro‐activity parameters establish property‐activity nexus, emphasizing benefits electrodes. Noteworthy advancements demonstrated (HER), OER, overall (OWS), bifunctional HER alcohol (AOR), driven diverse range electrocatalysts. These include structure‐dependent materials such as metal oxides, hydroxides/oxyhydroxides, phosphides, sulfides, selenides, nitrides, carbides, each meticulously tailored with nuanced modifications that shape their distinctive attributes. also acknowledges its opportunities, providing guidance potential directions inspiring interdisciplinary collaboration among scientists.

Language: Английский

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