Oxygen vacancies enhanced cooperative electrocatalytic reduction of carbon dioxide and nitrite ions to urea

Journal of Colloid and Interface Science, Год журнала: 2020, Номер 577, С. 109 - 114

Опубликована: Май 22, 2020

Язык: Английский

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Photocatalytic Degradation of Organic and Inorganic Pollutants to Harmless End Products: Assessment of Practical Application Potential for Water and Air Cleaning

Catalysts, Год журнала: 2023, Номер 13(2), С. 380 - 380

Опубликована: Фев. 9, 2023

It is well-documented that large-scale pollution generated by human activity has a dramatic impact on ecosystems. In this context, removing harmful chemicals via photocatalysis tremendous potential as depollution method, utilizing freely available solar light and catalytic materials with low or negligible ecotoxicity. The main drawbacks, which aren’t often addressed in the literature, are formation of intermediate products, reaction rates, limited catalyst stability, difficult recovery. most cases, published works assess efficiency tested photocatalysts from pollutant degradation studies, whereas identifying quantifying by-products not conducted. This review summarizes recent advances reported for photocatalytic removal some organic (e.g., alcohols, carboxylic acids, volatile compounds, phenol) inorganic NO3−) contaminants. various UV- visible-light active pathways were explained, emphasizing factors contributing to their mineralization. mechanisms, identification quantification intermediates, implication reactive species (ROS) discussed analyzed each category model target pollutant. Additionally, actual challenges future approaches improve environmental remediation presented.

Язык: Английский

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Electrochemical C–N coupling of CO₂and nitrogenous small molecules for the electrosynthesis of organonitrogen compounds

Chemical Society Reviews, Год журнала: 2023, Номер 52(6), С. 2193 - 2237

Опубликована: Янв. 1, 2023

Electrochemical C–N coupling reaction by renewable electricity for the electrosynthesis of organonitrogen compounds with abundant CO 2 and nitrogenous small molecules as carbon nitrogen sources, respectively, is a promising sustainable synthetic strategy.

Язык: Английский

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Plasmonic-based nanomaterials for environmental remediation

Applied Catalysis B Environment and Energy, Год журнала: 2018, Номер 237, С. 721 - 741

Опубликована: Июнь 20, 2018

Язык: Английский

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Insights into the Synthesis, types and application of iron Nanoparticles: The overlooked significance of environmental effects

Environment International, Год журнала: 2021, Номер 158, С. 106980 - 106980

Опубликована: Ноя. 16, 2021

Two decades ago, iron nanoparticles have been widely studied in environmental protection due to their particular characters. Compared with traditional absorbents, not only higher specific surface area, but also can oxidize and reduce multiple pollutants. Iron employed for the remediation of organic inorganic pollutants polluted water, soil sediments. With in-depth research, various modified prepared further overcome original defects aggregation or oxidation, improve reaction efficiency. Based on properties iron-based nanoparticles, this review summarizes different synthesis methods removal mechanism We systematically classified unstable stable nanoparticles. At present, are possible retention bare so as achieve efficiency The application has significant effect pH value, pollutant morphology toxicity microorganisms. Subsequently, some suggestions conclusions put forward

Язык: Английский

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Recent advances and challenges of electrochemical ammonia synthesis

Chem Catalysis, Год журнала: 2022, Номер 2(10), С. 2590 - 2613

Опубликована: Сен. 21, 2022

Язык: Английский

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Layered photocatalytic nanomaterials for environmental applications

Chinese Chemical Letters, Год журнала: 2022, Номер 34(3), С. 107523 - 107523

Опубликована: Май 17, 2022

Язык: Английский

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Electrodeposition of nanostructured Bi2MoO6@Bi2MoO6–x homojunction films for the enhanced visible-light-driven photocatalytic degradation of antibiotics

Applied Catalysis B Environment and Energy, Год журнала: 2022, Номер 317, С. 121703 - 121703

Опубликована: Июль 6, 2022

Complex tunable visible-light-driven Aurivillius-phase-based micro- and nanostructured photocatalysts were fabricated following a novel, scalable, easily implemented sequential process based on electrochemical deposition thermal treatment. Regarding its novelty, electrochemistry was the primary tool for synthesis, one that constitutes viable alternative to other complex chemical physical processes. The parameters of electrodeposition conditions promoted different Bi2MoO6 Bi2MoO6@Bi2MoO6–x films. homojunction films obtained after 3 h calcination showing nanowire morphology emerged as most effective photocatalyst degrading mineralizing mono- multiantibiotic solutions (i.e., tetracycline, ciprofloxacin, and/or levofloxacin), which achieved near-total degradation exceptionally high mineralization values (>95%) 180 min radiation. materials' proven reusability, low photocorrosion activity, excellent photocatalytic performance in antibiotics can support implementation homojunctions efficient visible-light under solar

Язык: Английский

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Nitrate Water Contamination from Industrial Activities and Complete Denitrification as a Remediation Option

Water, Год журнала: 2022, Номер 14(5), С. 799 - 799

Опубликована: Март 3, 2022

Freshwater is a scarce resource that continues to be at high risk of pollution from anthropogenic activities, requiring remediation in such cases for its continuous use. The agricultural and mining industries extensively use water nitrogen (N)-dependent products, mainly fertilizers explosives, respectively, with their excess accumulating different bodies. Although removal NO3 soil through the application chemical, physical, biological methods has been studied globally, these seldom yield N2 gas as desired byproduct cycling. These predominantly cause secondary contamination deposits chemical waste slurry brine, nitrite (NO2), ammonia (NH3), nitrous oxide (N2O), which are also harmful fastidious remove. This review focuses on complete denitrification facilitated by bacteria remedial option aimed producing terminal byproduct. Synergistic interaction metabolisms highlighted, detailed attention optimization enzymatic activities. A biotechnological approach mitigating industrial using indigenous wastewater proposed, holding prospect optimizing point denitrification. was reviewed found durable, sustainable, cost effective, environmentally friendly, opposed current physical technologies.

Язык: Английский

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Recent Advances in Electrocatalytic Nitrate Reduction to Ammonia: Mechanism Insight and Catalyst Design

ACS Sustainable Chemistry & Engineering, Год журнала: 2023, Номер 11(21), С. 7965 - 7985

Опубликована: Май 16, 2023

Excessive discharge of nitrate pollutants has caused an imbalance in the nitrogen cycle, which threatened human health and ecosystems. Clean electrocatalytic reduction technology can convert into high value-added ammonia to control water pollution, truly realizing "turning waste treasure". This review highlights latest mechanisms proposed by combining situ characterization discusses various intermediates produced during reaction process key steps that determine rate. Meanwhile, four common catalyst synthesis strategies are systematically summarized. These have exhibited preeminent results terms conductivity active sites inhibition side effects. Finally, challenges difficulty (NRA) development main direction future discussed. The engineering for increasing stability performance also aims provide guidance efficient conversion promotes advancement sustainable chemistry.

Язык: Английский

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