Different reaction mechanisms of SO4•− and •OH with organic compound interpreted at molecular orbital level in Co(II)/peroxymonosulfate catalytic activation system

Water Research, Год журнала: 2022, Номер 229, С. 119392 - 119392

Опубликована: Ноя. 19, 2022

Язык: Английский

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Efficient NIR-II Type-I AIE Photosensitizer for Mitochondria-Targeted Photodynamic Therapy through Synergistic Apoptosis–Ferroptosis

ACS Nano, Год журнала: 2023, Номер 17(10), С. 9110 - 9125

Опубликована: Май 5, 2023

Hypoxia, the hallmark of malignant tumors, has been recognized as a major obstacle for photodynamic therapy (PDT). Precisely targeting cancer cells in intricate biological scenarios by hypoxia-resistant photosensitizer (PS) is cornerstone to conquer inevitable tumor recurrence and metastasis. Herein, we describe an organic NIR-II PS (TPEQM-DMA) possessing potent type-I phototherapeutic efficacy overcome intrinsic pitfalls PDT combating hypoxic tumors. TPEQM-DMA exhibited prominent emission (>1000 nm) with aggregation-induced feature efficiently produced superoxide anion hydroxyl radical aggregate state under white light irradiation exclusively through low-O2-dependent photochemical process. The suitable cationic nature assisted accumulate cancerous mitochondria. Meanwhile, impaired cellular redox homeostasis, led mitochondrial dysfunction, raised level lethal peroxidized lipids, which induced apoptosis ferroptosis. This synergistic cell death modality enabled suppress growth cells, multicellular spheroids, To improve pharmacological properties TPEQM-DMA, nanoparticles were prepared encapsulation polymer. In vivo experiments proved appealing fluorescence imaging-guided effect

Язык: Английский

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Concerted and Selective Electrooxidation of Polyethylene‐Terephthalate‐Derived Alcohol to Glycolic Acid at an Industry‐Level Current Density over a Pd−Ni(OH)₂ Catalyst

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(11)

Опубликована: Янв. 19, 2023

Electro-reforming of Polyethylene-terephthalate-derived (PET-derived) ethylene glycol (EG) into fine chemicals and H2 is an ideal solution to address severe plastic pollution. Here, we report the electrooxidation EG glycolic acid (GA) with a high Faraday efficiency selectivity (>85 %) even at industry-level current density (600 mA cm-2 1.15 V vs. RHE) over Pd-Ni(OH)2 catalyst. Notably, stable electrolysis 200 h can be achieved, outperforming all available Pd-based catalysts. Combined experimental theoretical results reveal that 1) OH* generation promoted by Ni(OH)2 plays critical role in facilitating EG-to-GA oxidation removing poisonous carbonyl species, thereby achieving activity stability; 2) Pd downshifted d-band center oxophilic Ni synergistically facilitate rapid desorption transfer GA from active sites inactive sites, avoiding over-oxidation thus selectivity.

Язык: Английский

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Generation and identification of 1O2 in catalysts/peroxymonosulfate systems for water purification

Water Research, Год журнала: 2023, Номер 245, С. 120614 - 120614

Опубликована: Сен. 11, 2023

Язык: Английский

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H2O2-mediated electrosynthesis of nitrate from air

Nature Synthesis, Год журнала: 2024, Номер 3(6), С. 763 - 773

Опубликована: Апрель 19, 2024

Язык: Английский

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Oxygen vacancy-induced spin polarization of tungsten oxide nanowires for efficient photocatalytic reduction and immobilization of uranium(VI) under simulated solar light

Applied Catalysis B Environment and Energy, Год журнала: 2022, Номер 324, С. 122202 - 122202

Опубликована: Ноя. 20, 2022

Язык: Английский

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Co–Mn spinel oxides trigger peracetic acid activation for ultrafast degradation of sulfonamide antibiotics: Unveiling critical role of Mn species in boosting Co activity

Water Research, Год журнала: 2022, Номер 229, С. 119462 - 119462

Опубликована: Дек. 5, 2022

Язык: Английский

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Thiadiazole-Based Covalent Organic Frameworks with a Donor–Acceptor Structure: Modulating Intermolecular Charge Transfer for Efficient Photocatalytic Degradation of Typical Emerging Contaminants

Environmental Science & Technology, Год журнала: 2022, Номер 56(22), С. 16303 - 16314

Опубликована: Окт. 28, 2022

As novel metal-free photocatalysts, covalent organic frameworks (COFs) have great potential to decontaminate pollutants in water. Fast charge recombination COFs yet inhibits their photocatalytic performance. We found that the intramolecular transfer within could be modulated via constructing a donor-acceptor (D-A) structure, leading improved performance of toward pollutant degradation. By integrating electron donor units (1,3,4-thiadiazole or 1,2,4-thiadiazole ring) and acceptor (quinone), two (COF-TD1 COF-TD2) with robust D-A characteristics were fabricated as visible-light-driven photocatalysts paracetamol. With readily excited electrons 1,3,4-thiadiazole rings, COF-TD1 exhibited efficient electron-hole separation through push-pull electronic effect, resulting superior paracetamol photodegradation (>98% degradation 60 min) than COF-TD2 (∼60% 120 min). efficiently photodegrade complicated water matrices even river water, lake sewage wastewater. Diclofenac, bisphenol A, naproxen, tetracycline hydrochloride also effectively degraded by COF-TD1. Efficient scaled-up reactor achieved either powder form immobilized onto glass slide (to further ease recovery reuse) under natural sunlight irradiation. Overall, this study provided an effective strategy for designing excellent COF-based degrade emerging contaminants.

Язык: Английский

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Interfacial modulation of ZnIn2S4 with high active Zr-S4 sites for boosting photocatalytic activation of oxygen and degradation of emerging contaminant

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 328, С. 122481 - 122481

Опубликована: Фев. 16, 2023

Язык: Английский

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Insights into the mechanism of carbocatalysis for peracetic acid activation: Kinetic discernment and active site identification

Water Research, Год журнала: 2022, Номер 227, С. 119346 - 119346

Опубликована: Ноя. 8, 2022

Язык: Английский

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