Piezocatalytic Techniques in Environmental Remediation

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 62(5)

Published: Nov. 1, 2022

Abstract As a consequence of rapid industrialization throughout the world, various environmental pollutants have begun to accumulate in water, air, and soil. This endangers ecological environment earth, remediation has become an immediate priority. Among techniques, piezocatalytic which uniquely take advantage piezoelectric effect, attracted much attention. Piezoelectric effects allow pollutant degradation directly, while also enhancing photocatalysis by reducing recombination photogenerated carriers. In this Review, we provide comprehensive summary recent developments techniques for remediation. The origin effect as well classification materials their application are systematically summarized. We analyze potential underlying mechanisms. Finally, urgent problems future development discussed.

Language: Английский

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Enabling Internal Electric Fields to Enhance Energy and Environmental Catalysis

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(11)

Published: Jan. 29, 2023

Abstract Recent years have witnessed an upsurge of interest in exploiting advanced photo‐/electrocatalysts for efficient energy conversion and environmental remediation. Constructing internal electric fields has been highlighted as a rising star to help facilitate various catalytic processes, with the merits promoting charge transfer/separation, optimizing redox potential creating effective active/adsorption sites. Internal are usually formed by polarization uneven distributions between different constituent layers, which widely exist piezoelectrics, polar surface terminations, heterostructure materials. Herein, groundbreaking interdisciplinary overview latest advances construction improve photo(electro)catalytic electrocatalytic activity is provided. This critical review begins encyclopedic summary classification, advantages, synthesis strategies fields. Subsequently, identification methods thoroughly discussed based on characterization techniques, experiments, theoretical calculations, can provide profound guidance in‐depth study To elaborate theory–structure–activity relationships fields, corresponding reaction mechanisms, modification strategies, performance jointly discussed, along discussion their practical applications. Finally, insightful analysis challenges future prospects field‐based catalysts discussed.

Language: Английский

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Design strategies and effect comparisons toward efficient piezocatalytic system

Nano Energy, Journal Year: 2022, Volume and Issue: 107, P. 108093 - 108093

Published: Dec. 15, 2022

Language: Английский

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Photochromic single atom Ag/TiO₂ catalysts for selective CO₂ reduction to CH₄

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 17(2), P. 518 - 530

Published: Dec. 7, 2023

A new all-in-one design concept of constructing photochromic single atom photocatalysts is proposed to achieve both high activity and selectivity photocatalytic CO 2 -to-CH 4 conversion.

Language: Английский

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An Emerging Family of Piezocatalysts: 2D Piezoelectric Materials

Small, Journal Year: 2023, Volume and Issue: 19(44)

Published: June 29, 2023

Abstract Piezocatalysis is an emerging technique that holds great promise for the conversion of ubiquitous mechanical energy into electrochemical through piezoelectric effect. However, energies in natural environment (such as wind energy, water flow and noise) are typically tiny, scattered, featured with low frequency power. Therefore, a high response to these tiny critical achieving piezocatalytic performance. In comparison nanoparticles or 1D materials, 2D materials possess characteristics such flexibility, easy deformation, large surface area, rich active sites, showing more future practical applications. this review, state‐of‐the‐art research progresses on their applications piezocatalysis provided. First, detailed description offered. Then comprehensive summary presented examines various fields, including environmental remediation, small‐molecule catalysis, biomedicine. Finally, main challenges prospects discussed. It expected review can fuel application piezocatalysis.

Language: Английский

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Band Position‐Independent Piezo‐Electrocatalysis for Ultrahigh CO₂ Conversion

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(21)

Published: March 6, 2023

Piezo-electrocatalysis as an emerging mechano-to-chemistry energy conversion technique opens multiple innovative opportunities and draws great interest over the past decade. However, two potential mechanisms in piezo-electrocatalysis, i.e., screening charge effect band theory, generally coexist most piezoelectrics, making essential mechanism remain controversial. Here, for first time, piezo-electrocatalytic CO2 reduction reaction (PECRR) is distinguished through a narrow-bandgap piezo-electrocatalyst strategy using MoS2 nanoflakes demo. With conduction of -0.12 eV, are unsatisfied -to-CO redox -0.53 yet they achieve ultrahigh CO yield ≈543.1 µmol g-1 h-1 PECRR. Potential position shifts under vibration still with verified by theoretical investigation piezo-photocatalytic experiment, further indicating that piezo-electrocatalysis independent position. Besides, exhibit unexpected intense "breathing" enable naked-eye-visible inhalation gas, independently achieving complete carbon cycle chain from capture to conversion. The processes PECRR revealed self-designed situ cell. This work brings new insights into surface evolution piezo-electrocatalysis.

Language: Английский

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Constructing atomic surface concaves on Bi5O7Br nanotube for efficient photocatalytic CO2 reduction

Nano Energy, Journal Year: 2023, Volume and Issue: 109, P. 108305 - 108305

Published: Feb. 26, 2023

Language: Английский

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Ultrasound-assisted piezoelectric photocatalysis: An effective strategy for enhancing hydrogen evolution from water splitting

Nano Energy, Journal Year: 2023, Volume and Issue: 118, P. 108993 - 108993

Published: Oct. 12, 2023

Language: Английский

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Vibration‐driven Reduction of CO₂ to Acetate with 100 % Selectivity by SnS Nanobelt Piezocatalysts

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(33)

Published: June 8, 2023

Converting CO2 into high-value C2 chemicals such as acetate with high selectivity and efficiency is a critical issue in renewable energy storage. Herein, for the first time we present vibration-driven piezocatalysis tin(II) monosulfide (SnS) nanobelts conversion of to 100 % selectivity, highest production rate (2.21 mM h-1 ) compared reported catalysts. Mechanism analysis reveal that polarized charges triggered by periodic mechanical vibration promote adsorption activation . The electron transfer can be facilitated due built-in electric field, decreased band gap work function SnS under stress. Remarkably, reduced distance between active sites leads charge enrichment on Sn sites, promoting C-C coupling, reducing barriers determining step. It puts forward bran-new strategy converting products efficient, low-cost environment-friendly utilizing energy.

Language: Английский

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Challenges and opportunities of atomic-scales reactive sites in thriving electrochemical CO2 reduction reaction

Nano Today, Journal Year: 2024, Volume and Issue: 55, P. 102152 - 102152

Published: Jan. 13, 2024

Language: Английский

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