Oxygen-containing surface functional groups, mesoporous structure and photothermal effect co-modulated highly-efficient H2O2 production and pollutant degradation

Lu, Xuyun; Zhu, Xiaorong; Ma, Zhanhong; Che, Zhiwen; Li, Yafei; Bao, Jianchun; Liu, Ying

doi:10.1016/j.electacta.2022.140755

Cited by 12 publications

(6 citation statements)

References 41 publications

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“…Lu et al prepared mesoporous carbon hollow spheres (MCHS) and utilized them for the electrochemical production of H 2 O 2 , which was subsequently employed for in situ pollutant degradation. [45] The role played by MCHS in this system was the catalytic synthesis of H 2 O 2 and provided the photothermal effect to assist the Fenton oxidation. The degradation efficiency could be high to 98.1%.…”

Section: Photothermal Effect Assisted Fenton Oxidationmentioning

confidence: 99%

“…[42][43][44] In particular, the photothermal effect can as-sist advanced oxidation processes (AOPs) for water treatment, such as photocatalysis, persulfates oxidation, Fenton oxidation, and electrochemical processes. [45,46] Photothermal effect-assisted AOPs have shown bright prospects in water treatment. However, there is a lack of systematic summaries on the assisted mechanism of carbonaceous materials-based photothermal effects on AOPs, and published works present varying perspectives.…”

Section: Introductionmentioning

confidence: 99%

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Carbonaceous Materials‐Based Photothermal Process in Water Treatment: From Originals to Frontier Applications

Hu,

Qin,

et al. 2023

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The photothermal process has attracted considerable attention in water treatment due to its advantages of low energy consumption and high efficiency. In this respect, photothermal materials play a crucial role in the photothermal process. Particularly, carbonaceous materials have emerged as promising candidates for this process because of exceptional photothermal performance. While previous research on carbonaceous materials has primarily focused on photothermal evaporation and sterilization, there is now a growing interest in exploring the potential of photothermal effect‐assisted advanced oxidation processes (AOPs). However, the underlying mechanism of the photothermal effect assisted by carbonaceous materials remains unclear. This review aims to provide a comprehensive review of the photothermal process of carbonaceous materials in water treatment. It begins by introducing the photothermal properties of carbonaceous materials, followed by a discussion on strategies for enhancing these properties. Then, the application of carbonaceous materials‐based photothermal process for water treatment is summarized. This includes both direct photothermal processes such as photothermal evaporation and sterilization, as well as indirect photothermal processes that assisted AOPs. Meanwhile, various mechanisms assisted by the photothermal effect are summarized. Finally, the challenges and opportunities of using carbonaceous materials‐based photothermal processes for water treatment are proposed.

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Section: Photothermal Effect Assisted Fenton Oxidationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Carbonaceous Materials‐Based Photothermal Process in Water Treatment: From Originals to Frontier Applications

Hu,

Qin,

et al. 2023

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“…[34] Photothermal effect can locally heat the catalyst with minimal interference on pH, viscosity and other factors of the electrolyte, so is considered to be an ideal heating mode. [35][36][37] As an illustrious photothermal material with extensive adjustability, Cu 2 S has broad applications in seawater desalination, [38] pollutant degradation, [39] cancer treatment and other fields, [40] but rarely in electrocatalytic areas. Actually, decorating electrocatalytic system with Cu 2 S can make full use of the promotion effect of temperature on reaction dynamics, thereby harvesting prosperous catalytic performances.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Electrocatalytic Water Oxidation by Interfacial Phase Transition and Photothermal Effect in Multiply Heterostructured Co₉S₈/Co₃S₄/Cu₂S Nanohybrids

Chang,

Ma,

et al. 2023

Angew Chem Int Ed

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The rational design of advanced nanohybrids (NHs) with optimized interface electronic environment and rapid reaction kinetics is pivotal to electrocatalytic schedule. Herein, we developed a multiple heterogeneous Co9S8/Co3S4/Cu2S nanoparticle in which Co3S4 germinates between Co9S8 and Cu2S. Using high‐angle annular‐dark‐field imaging and theoretical calculation, it was found that the integration of Co9S8 and Cu2S tends to trigger the interface phase transition of Co9S8, leading to Co3S4 interlayer due to the low formation energy of Co3S4/Cu2S (−7.61 eV) than Co9S8/Cu2S (−5.86 eV). Such phase transition not only lowers the energy barrier of oxygen evolution reaction (OER, from 0.335 eV to 0.297 eV), but also increases charge carrier density (from 7.76×1014 to 2.09×1015 cm−3), and creates more active sites. Compared to Co9S8 and Cu2S, the Co9S8/Co3S4/Cu2S NHs also demonstrate notable photothermal effect that can heat the catalyst locally, offset the endothermic enthalpy change of OER, and promote carrier migrate, reaction intermediates adsorption/deprotonation to improve reaction kinetics. Profiting from these favorable factors, the Co9S8/Co3S4/Cu2S catalyst only requires an OER overpotential of 181 mV and overall water splitting cell voltage of 1.43 V to driven 10 mA cm−2 under the irradiation of near‐infrared light, outperforming those without light irradiation and many reported Co‐based catalysts.

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“…The research on the photothermal catalysts has been preceded by the plasmonic metal nanoparticle (NP)-based ones such as Au and group (III) metal NPs, and a comprehensive review paper has recently been published. [4] Meanwhile, studies on the photothermal catalysts including ATO nanocrystals (NCs) for oxidation of organics, [5][6][7] carbon-based nanomaterials for electrochemical H 2 O 2 production [8] and environmental purification, [8,9] and porous MXene for dehydrogenation of formic acid [10] are currently in rapid in progress. Among these, the ATO NC-based photothermal catalysts have an outstanding ability of enhancing not only the activity of the catalysts loaded on them but also the semiconductor photocatalytic activity.…”

Section: Introductionmentioning

confidence: 99%

Near Infrared Light‐to‐Heat Conversion for Liquid‐Phase Oxidation Reactions by Antimony‐Doped Tin Oxide Nanocrystals

2023

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Effective utilization of the sunlight for chemical reactions is pivotal for dealing with the growing energy and environmental issues. So far, much effort has been focused on the development of semiconductor photocatalysts responsive to UV and visible light. However, the near infrared and infrared (NIR-IR) light occupying ~50 % of the solar energy has usually been wasted because of the low photon energy insufficient for the band gap excitation. Antimony doping into SnO 2 (ATO) induces strong absorption due to the conduction band electrons in the NIR region. The absorbed light energy is eventually converted to heat via the interaction between hot electrons and phonons. This Concept highlights the photothermal effect of ATO nano-crystals (NCs) on liquid-phase oxidation reactions through the NIR light-to-heat conversion. Under NIR illumination even at an intensity of ~0.5 sun, the reaction field temperature on the catalyst surface is raised 20-30 K above the bulk solution temperature, while the latter is maintained near the ambient temperature. In some reactions, this photothermal local heating engenders the enhancement of not only the catalytic activity and selectivity but also the regeneration of catalytically active sites. Further, the photocatalytic activity of semiconductors can be promoted. Finally, the conclusions and possible subjects in the future are summarized.

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Oxygen-containing surface functional groups, mesoporous structure and photothermal effect co-modulated highly-efficient H2O2 production and pollutant degradation

Cited by 12 publications

References 41 publications

Carbonaceous Materials‐Based Photothermal Process in Water Treatment: From Originals to Frontier Applications

Carbonaceous Materials‐Based Photothermal Process in Water Treatment: From Originals to Frontier Applications

Enhanced Electrocatalytic Water Oxidation by Interfacial Phase Transition and Photothermal Effect in Multiply Heterostructured Co₉S₈/Co₃S₄/Cu₂S Nanohybrids

Near Infrared Light‐to‐Heat Conversion for Liquid‐Phase Oxidation Reactions by Antimony‐Doped Tin Oxide Nanocrystals

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Oxygen-containing surface functional groups, mesoporous structure and photothermal effect co-modulated highly-efficient H2O2 production and pollutant degradation

Cited by 12 publications

References 41 publications

Carbonaceous Materials‐Based Photothermal Process in Water Treatment: From Originals to Frontier Applications

Carbonaceous Materials‐Based Photothermal Process in Water Treatment: From Originals to Frontier Applications

Enhanced Electrocatalytic Water Oxidation by Interfacial Phase Transition and Photothermal Effect in Multiply Heterostructured Co9S8/Co3S4/Cu2S Nanohybrids

Near Infrared Light‐to‐Heat Conversion for Liquid‐Phase Oxidation Reactions by Antimony‐Doped Tin Oxide Nanocrystals

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Enhanced Electrocatalytic Water Oxidation by Interfacial Phase Transition and Photothermal Effect in Multiply Heterostructured Co₉S₈/Co₃S₄/Cu₂S Nanohybrids