Manganese oxide catalytic materials for degradation of organic pollutants in advanced oxidation processes: A review

Journal of Water Process Engineering, Год журнала: 2024, Номер 66, С. 106048 - 106048

Опубликована: Авг. 28, 2024

Язык: Английский

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Emerging investigator series: recent progress on the activation of persulfate by vacancy defect materials: the role of vacancies

Environmental Science Nano, Год журнала: 2024, Номер 11(8), С. 3230 - 3249

Опубликована: Янв. 1, 2024

This review summarizes the key roles of various vacancy defects in PS-AOPs and provides insights into understanding defect persulfate activation to promote development water treatments.

Язык: Английский

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Degradation of Orange G Using PMS Triggered by NH2-MIL-101(Fe): An Amino-Functionalized Metal–Organic Framework

Molecules, Год журнала: 2024, Номер 29(7), С. 1488 - 1488

Опубликована: Март 27, 2024

As an azo dye, OG has toxic and harmful effects on ecosystems. Therefore, there is urgent need to develop a green, environmentally friendly, efficient catalyst activate peroxymonosulfate (PMS) for the degradation of OG. In this study, catalysts MIL-101(Fe) NH2-MIL-101(Fe) were prepared using solvothermal method carry out experiments. They characterized by means XRD, SEM, XPS, FT-IR, results showed that successfully prepared. Then, catalyst/PMS system was constructed, different reaction systems, initial pH, temperature, dosing, PMS concentration, anion effect investigated. Under specific conditions (100 mL solution with concentration 50 mg/L, pH = 7.3, temperature 25 °C, 1 100 mmol/L, dosage 0.02 g), only 36.6% within 60 min; as comparison, could reach up 97.9%, constant k value 0.07245 min−1. The NH2-MIL-101 (Fe)/PMS able achieve at values (pH 3~9). mechanism analyzed free-radical quenching tests. tests SO4•−, •OH, 1O2 main active species during

Язык: Английский

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Self-assembled perylene diimide decorated g-C3N4 heterojunction catalyst with strong interfacial charge transfer through π-π interaction for efficient boosted photocatalytic degradation of tetracycline

Surfaces and Interfaces, Год журнала: 2024, Номер 53, С. 105008 - 105008

Опубликована: Авг. 25, 2024

Язык: Английский

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Innovative study on PA/MnCo2O4-rGO mediated peroxymonosulfate activation for degradation of organic pollutants: Role of singlet oxygen and activation pathway

Surfaces and Interfaces, Год журнала: 2025, Номер unknown, С. 105751 - 105751

Опубликована: Янв. 1, 2025

Язык: Английский

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Synthesis of bimetallic crednerite nanosheet as an efficient heterogeneous catalyst in Fenton-like degradation of bisphenol A

Frontiers of Chemical Science and Engineering, Год журнала: 2025, Номер 19(5)

Опубликована: Апрель 13, 2025

Язык: Английский

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Comparative study of the structural, magnetic and electrical properties of cuprous delafossites CuBO2(B = Zn, Mn and Er) prepared using the flash auto-combustion technique

Physica Scripta, Год журнала: 2024, Номер 99(8), С. 085980 - 085980

Опубликована: Июль 16, 2024

Abstract The flash auto-combustion method was utilized to produce Cu-based delafossites of CuBO 2 (B = Zn, Mn, and Er). x-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), photoelectron spectroscopy (XPS) were employed verify the phase formation, surface morphology, oxidation states synthesized delafossite samples. crystallite sizes determined be 43, 16.76, 21.66 nm for CuZnO , CuMnO CuErO nanoparticles (NPs), respectively. magnetic characteristics samples studied at room temperature, revealing their paramagnetic nature through hysteresis effect. Seebeck coefficient (S) found positive, while it negative . thermoelectric power NPs high, indicating potential as materials more efficient devices. Additionally, exhibited an antimicrobial response against four-gram (+ve) bacteria, (-ve) fungus Candida albicans (CA). data obtained demonstrated that altered bacterial cell ultimately leading death.

Язык: Английский

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In situ growth of CuO on porous geopolymer spheres as green catalysts for enhanced peroxymonosulfate‐activated degradation of Orange I

Journal of the American Ceramic Society, Год журнала: 2023, Номер 107(4), С. 2143 - 2154

Опубликована: Дек. 14, 2023

Abstract In this study, in situ growth of CuO on the surface porous geopolymer catalyst spheres (GC) was prepared through a simple method for activation peroxymonosulfate (PMS) to degrade Orange I (OI) water. GC‐0.01 exhibited an excellent performance with more than 95% degradation OI within 30 min. The effects PMS concentrations, dosage, Cl − , HCO 3 and humic acid (HA) GC‐0.01/PMS system were systematically investigated. study mechanism showed that combined generate complexes spheres, which could electron transfer pathway. addition, variety reactive oxygen species, mainly 1 O 2 also present system, OI. This work provides new insight into application oxide‐modified geopolymers water purification applications.

Язык: Английский

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Reusable CS-Ca@PEI/CuMnO₂ Hydrogel Beads for Peroxymonosulfate-Activated Degradation of Congo Red

Langmuir, Год журнала: 2024, Номер 40(28), С. 14245 - 14256

Опубликована: Июнь 28, 2024

Metal oxides can activate peroxymonosulfate (PMS) for the catalytic degradation of organic dyes. However, achieving high efficiency, structural stability, ease recovery, and recyclability remains challenging both research practical applications. To address these requirements, a bimetallic oxide, CuMnO2, was synthesized using simple hydrothermal approach encapsulated to create hydrogel beads, CS-Ca@PEI/CuMnO2. Subsequently, CS-Ca@PEI/CuMnO2 used PMS establish solid–liquid heterogeneous oxidation system (CS-Ca@PEI/CuMnO2/PMS) Congo red (CR). The effects various parameters such as different systems, catalyst dosages, initial pH values, concentrations, temperatures, anion types on properties CR were systematically evaluated. results indicated that has exceptional capacity, 91.0% at 7. After three cycles, maintained an 86.9% efficiency compared its original performance, highlighting robust stability. presence reactive radicals, specifically 1O2 •O2–, confirmed through quenching experiments, X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance (EPR). Liquid chromatography-tandem mass spectrometry (LC-MS) revealed ten proposed intermediates in process. Due durability, recyclability, retrieval, shows great potential effectively removing pollutants from industrial wastewater.

Язык: Английский

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Continuous-flow degradation of Orange I using CoFe2O4-loaded activated carbon catalyst: Optimization of reaction parameters and toxicity prediction

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 156768 - 156768

Опубликована: Окт. 1, 2024

Язык: Английский

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