Improved CeMnO3 perovskite framework for visible-light-aided degradation of tetracycline hydrochloride antibiotic residue and methylene blue dye

Anusha, H. S.; Yadav, Sneha; Thinley, Tenzin; Prabagar, Jijoe Samuel; Anilkumar, Kotermane Mallikarjunappa; Kitirote, W.; Shivaraju, Harikaranahalli Puttaiah

doi:10.1007/s13762-022-04742-3

Cited by 12 publications

(3 citation statements)

References 62 publications

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“…Tetracycline hydrochloride [55] CaFe2O4 and LaFeO3 Tetracycline [56] Chemical precipitation involves adding specific chemicals to contaminated water to form insoluble compounds. Insoluble compounds may include complexes with antibiotics, which precipitate and can be removed by sedimentation or filtration.…”

Section: Cemno3mentioning

confidence: 99%

Reviewing Perovskite Oxide-Based Materials for the Effective Treatment of Antibiotic-Polluted Environments: Challenges, Trends, and New Insights

da Silva Júnior,

de Oliveira,

Wolff Leal

et al. 2024

Surfaces

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Society confronts the pressing environmental challenges posed by the pervasive presence of toxic pollutants in aquatic ecosystems. The repercussions of contaminant release extend far and wide, endangering marine life and human well-being. While various techniques such as bioremediation, filtration, and adsorption have been employed for wastewater treatment, they grapple with cost effectiveness and overall efficiency issues. Advanced oxidative processes, including photocatalysis and Fenton, have emerged as viable solutions in response to the emerging contaminants. However, the efficacy of photocatalysis largely hinges on the choice of catalyst. Their distinctive attributes, such as chemical defects and exceptional stability, make perovskite oxides a promising catalyst. These materials can be synthesized through diverse methods, rendering them versatile and adaptable for widespread applications. Ongoing research endeavors are diligently focused on enhancing the performance of perovskite oxides, optimizing their integration into catalytic processes, and exploring innovative approaches for material immobilization. This comprehensive review seeks to elucidate the most pivotal advances in perovskite oxides and their composites within the wastewater treatment domain. Additionally, it sheds light on burgeoning research trends and multifaceted challenges confronting this field, which present insights into techniques for treating the antibiotic-contaminated environment, delving into innovative strategies, green technologies, challenges, and emerging trends.

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Section: Cemno3mentioning

confidence: 99%

Reviewing Perovskite Oxide-Based Materials for the Effective Treatment of Antibiotic-Polluted Environments: Challenges, Trends, and New Insights

da Silva Júnior,

de Oliveira,

Wolff Leal

et al. 2024

Surfaces

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“…Similarly, another pollutant named methylene orange (MO), an anionic dye, is well known for its versatile use in the textile, pharmaceutical, and food industries. On the contrary, these dyes found in water streams (leaked from industries) pose a threat to human health and the environment because of their toxicity, carcinogenic, and nonbiodegradable nature. − …”

Section: Introductionmentioning

confidence: 99%

“…This results in the breakdown of dye molecules into harmless byproducts. , The rare earth-based (LaMO 3 (M = Fe, Co, and Mn), YMnO 3 , , and CeMnO 3 ) alkali and alkaline earth metal-based perovskites (ATiO 3 (A = Ca, Ba, and Sr)), titanates (ATiO 3 (A = Sr, Ca, Pb, Ni)), niobates (ANbO 3 (A = Na and K)), halides (CsPbI 3 , CsSnI 3 , etc), and layered perovskites have exhibited promising photocatalytic activities in the past, although some of them can be activated by UV light only . Among the perovskite oxide nanomaterials, CeMnO 3 (CMO) offers good potential for photocatalytic applications due to its cost-effective synthesis procedures, configurable band gaps, physicochemical stability, lower toxicity, resistance to photocorrosion, availability of distinct B-site Mn 4+ , Mn 3+ , and Mn 2+ oxidation states, and ability to be activated by both UV and visible light. ,− …”

Section: Introductionmentioning

confidence: 99%

CeMnO₃ Nanoparticle-Decorated g-C₃N₄ Nanosheets as Z-Scheme Heterostructures for Efficient Photocatalytic Degradation of Dyes

Munisha,

Patra,

Nanda

et al. 2023

ACS Appl. Nano Mater.

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The design of efficient photocatalysts for dye degradation is a challenging task for the scientific community. Semiconductor-based photocatalysts such as g-C3N4 and oxides, utilizing solar energy, have been proven to be effective and promising approaches to resolve this issue to some extent. Constructing Z-scheme heterostructures by coupling g-C3N4 with suitable oxide semiconductors has shown substantial enhancement of the photocatalytic performance. In this article, perovskite-type CeMnO3 (5, 15, 25%) nanoparticle-decorated g-C3N4 nanosheets are fabricated as heterostructures, using a hydrothermal synthesis process, for efficient photocatalysis of organic dyes. The formations of heterostructures are confirmed through structural, microstructural, and elemental state analysis. Brunauer–Emmett–Teller (BET) and Barrett–Joyner–Halenda (BJH) characterization techniques exhibited enhanced surface area and pore sizes, respectively. Ultraviolet–visible (UV–vis) diffuse reflectance spectroscopy (DRS), Mott–Schottky, and linear sweep voltammetry (LSV) analyses along with density functional theory (DFT) calculations predicted a p–n junction heterostructure. Electron paramagnetic resonance (EPR) studies revealed a broad spectrum with sextet hyperfine lines corresponding to Mn4+ and Mn2+ ions and enhanced intensity as compared to the parent ones, signifying the creation of oxygen vacancies in the heterostructure. The CeMnO3 (25 wt %)/g-C3N4 heterostructure showed highly efficient photocatalytic degradation of methylene blue under direct sunlight irradiation, with up to 99% degradation achieved in 120 min and excellent recyclability. The robustness of this photocatalyst was tested by adopting a similar process for methylene orange dye degradation, exhibiting 94% yield in 120 min. A tentative degradation mechanism is proposed based on the enhanced photodegradation efficiency and results obtained from electrochemical impedance (EIS), photoluminescence (PL), LSV, and first principal studies, which provides more insights into the photogenerated charge separation, enhanced photocurrent, and interfacial transfer efficiency through the Z-scheme charge transfer process. This study offers opportunities for designing high-performance Z-scheme hybrid photocatalysts for environmental remediation.

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Adsorption and photocatalytic study of dyes for waste-water treatment using Mn modified DyCrO3 nanomaterials

Rani,

Singh,

Panwar

2023

J Sol-Gel Sci Technol

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Improved CeMnO3 perovskite framework for visible-light-aided degradation of tetracycline hydrochloride antibiotic residue and methylene blue dye

Cited by 12 publications

References 62 publications

Reviewing Perovskite Oxide-Based Materials for the Effective Treatment of Antibiotic-Polluted Environments: Challenges, Trends, and New Insights

Reviewing Perovskite Oxide-Based Materials for the Effective Treatment of Antibiotic-Polluted Environments: Challenges, Trends, and New Insights

CeMnO₃ Nanoparticle-Decorated g-C₃N₄ Nanosheets as Z-Scheme Heterostructures for Efficient Photocatalytic Degradation of Dyes

Adsorption and photocatalytic study of dyes for waste-water treatment using Mn modified DyCrO3 nanomaterials

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Improved CeMnO3 perovskite framework for visible-light-aided degradation of tetracycline hydrochloride antibiotic residue and methylene blue dye

Cited by 12 publications

References 62 publications

Reviewing Perovskite Oxide-Based Materials for the Effective Treatment of Antibiotic-Polluted Environments: Challenges, Trends, and New Insights

Reviewing Perovskite Oxide-Based Materials for the Effective Treatment of Antibiotic-Polluted Environments: Challenges, Trends, and New Insights

CeMnO3 Nanoparticle-Decorated g-C3N4 Nanosheets as Z-Scheme Heterostructures for Efficient Photocatalytic Degradation of Dyes

Adsorption and photocatalytic study of dyes for waste-water treatment using Mn modified DyCrO3 nanomaterials

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CeMnO₃ Nanoparticle-Decorated g-C₃N₄ Nanosheets as Z-Scheme Heterostructures for Efficient Photocatalytic Degradation of Dyes