MnO2 decorated Silicon Nanowires: A novel photocatalyst for improved Rhodamine B removal under visible light exposure

Surfaces and Interfaces, Год журнала: 2024, Номер 53, С. 105086 - 105086

Опубликована: Сен. 8, 2024

Язык: Английский

---

Synergistic adsorption-photocatalytic remediation of methylene blue dye from textile industry wastewater over NiFe LDH supported on tyre-ash derived activated carbon

Applied Surface Science, Год журнала: 2024, Номер 679, С. 161205 - 161205

Опубликована: Сен. 12, 2024

Язык: Английский

---

Mechanochemistry enhanced low-temperature molten salt synergistic treatment of low-grade pyrolusite and waste salts from the electrolytic manganese metal industry

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159338 - 159338

Опубликована: Янв. 1, 2025

Язык: Английский

---

Comprehensive treatment of waste salts from electrolytic manganese metal industry and recovery of manganese, magnesium, and ammonium

Journal of Environmental Management, Год журнала: 2025, Номер 375, С. 124252 - 124252

Опубликована: Фев. 1, 2025

Язык: Английский

---

Review: LDHs-based photocatalysts for CO2 reduction—modification strategies, performance, and mechanisms

Journal of Materials Science, Год журнала: 2025, Номер unknown

Опубликована: Фев. 18, 2025

Язык: Английский

---

Mechanism and Pathway of Atrazine Degradation by Peroxymonosulfate Activated by CoNiFe-Layered Double Hydroxide

Coatings, Год журнала: 2025, Номер 15(3), С. 346 - 346

Опубликована: Март 18, 2025

Advanced oxidation processes (AOPs) based on activated persulfate (PS) are gradually being employed in the treatment of novel pollutants. In this study, an efficient and reliable CoNiFe-layered double hydroxide (LDH) was prepared by a hydrothermal method, which could effectively activate peroxomonosulfate (PMS) cause free sulfate radical (SO4•−) to decompose atrazine (ATZ). The degradation rate ATZ greater than 99% within 60 min at pH 7 when initial concentration 10 mg·L−1, dosages PMS activator were 0.6 mM 80 mg·L−1. analysis confirmed reusability its strong structural stability. generation four radicals analyzed confirmed, influence reaction SO4•− > O2•− 1O2 •OH. analytical results showed that metal ions reacted with HSO5− oxidation–reduction cycle change valence state generated primary factor affecting reaction—SO4•−. Nine intermediates reduced toxicity detected possible pathways deduced, thus confirming activation mechanism CoNiFe-LDH.

Язык: Английский

---

S‐scheme MnO2/Co3O4 sugar‐gourd nanohybrids with abundant oxygen vacancies for efficient visible‐light‐driven CO2 reduction

ChemCatChem, Год журнала: 2024, Номер 16(22)

Опубликована: Авг. 7, 2024

Abstract Converting CO 2 to carbon‐based fuels using solar energy via photocatalysis is a promising approach boost carbon neutrality. However, the solar‐to‐chemical conversion efficiency hampered by interconnected multiple factors including insufficient light absorption, low separation of photogenerated carriers as well complex and sluggish surface reaction kinetics. Herein, we incorporate MnO nanowires Co 3 O 4 hollow polyhedrons with abundant oxygen vacancies (V ) into /Co sugar‐gourd nanohybrids for boosting photoreduction. The not only display strong absorption in visible–near infrared region, but also facilitate terms S‐scheme transfer pathway, supplying electrons reduction reaction. Furthermore, presence V enhances promotes chemical adsorption molecules. In addition, interfacial electronic interaction between contributes activation . Owing synergy pathway , hybrids exhibit greatly enhanced photocatalytic activity towards under irradiation visible comparison bare delivering evolution rate 15.9 umol g −1 h 100 % selectivity.

Язык: Английский

---

The Efficient Coupling between MgAlTi Layered Double Hydroxides and Graphitic Carbon Nitride Boosts Vis Light‐Assisted Photocatalytic NO_x Removal

Advanced Sustainable Systems, Год журнала: 2024, Номер 8(12)

Опубликована: Сен. 19, 2024

Abstract Atmospheric pollution has been recognized as a primary global emergency, especially in large cities and industrial areas. Among the most common harmful pollutants, nitrogen oxides (NO x ) are responsible for plethora of adverse effects, their effective elimination from air become an imperative task. In this regard, photocatalysis stands attractive technology NO degradation, provided that low‐cost efficient visible ‐light photocatalysts developed. construction heterojunctions between energy band‐matched semiconductors is strategy to boost ultimate material photoactivity. present study, green heterocomposites based on MgAlTi layered double hydroxides (LDHs) graphitic carbon nitride (gCN) prepared using amenable cost‐effective route. A proper modulation system characteristics, demonstrated by comprehensive investigation, enabled obtain very DeNO performances thanks MgAlTi/gCN with tailored features. The formation target significantly enhances light photoactivity pristine LDH, boosting monoxide transformation nitrites/nitrates remarkable recycling stability. Overall, presently reported results open door profitable exploitation purification under real‐world conditions, considerable impact both human wellbeing environmental protection.

Язык: Английский

---

Tartaric acid anion intercalated layered double hydroxides constructed a CO2-favorable transport channel in PIM-1 mixed matrix membranes for CO2/N2 separation

Journal of Membrane Science, Год журнала: 2024, Номер unknown, С. 123381 - 123381

Опубликована: Окт. 1, 2024

Язык: Английский

---

Comparison of LDH-Organic/Inorganic Compound Modified Materials as Adsorbents for Heavy Metal Adsorption: Characteristic Structure and Adsorption Mechanism

BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS, Год журнала: 2024, Номер 19(2), С. 327 - 339

Опубликована: Июнь 23, 2024

This study modified layered double hydroxide (LDH) with organic compounds in hydrochar made from rambutan peels (prepared by hydrothermal method) and polyoxometalate (tipe Keggin K4[ -SiW12O40].nH2O compound prepared sol-gel method). The synthesis of material was conducted through the coprecipitation method. then applied as an adsorbent for Fe²⁺ ions. material's properties were analyzed using XRD (X-ray diffraction), FT-IR (Fourier-transform infrared spectroscopy), BET surface area analysis. physicochemical characteristics material, a combination pure LDH hydrochar/polyoxometalate compounds, will influence adsorption results metal Furthermore, its application kinetic isotherm parameters, which found to follow pseudo-first-order (PFO) Freundlich models. capacities NiAl-LDH, NiAl-LDH/Hc (modified Hc), NiAl-LDH/POM POM) materials 32.789 mg/g, 47.393 90.091 respectively. It can be concluded that process occurs via physisorption, forming multilayer adsorbates at adsorbents active sites. Copyright © 2024 Authors, Published BCREC Publishing Group. is open access article under CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0)

Язык: Английский

---