Photocatalytic behaviors of bismuth-based mixed oxides: Types, fabrication techniques and mineralization mechanism of antibiotics

Thakur, Vikas; Singh, Seema; Kumar, Praveen; Rawat, Sameeksha; Chandra Srivastava, Vimal; Lo, Shang-Lien; Lavrenčič Štangar, Urška

doi:10.1016/j.cej.2023.146100

Cited by 19 publications

(3 citation statements)

References 140 publications

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“…These properties, combined with the unique characteristics of the individual metal components, offer several advantages for catalytic applications [89]. Specifically in heterogeneous catalysis, perovskite oxides have proven effective in the environmental remediation of antibiotics [90]. In the context of perovskite oxides, cation A is typically larger than cation B, which is fundamental for determining, for example, the catalytic capacity of these Oxides with perovskite-like structures are notable for their exceptional thermal stability, cost efficiency, enhanced oxygen mobility, and flexibility in structural modifications through the partial or complete replacement of cations [88].…”

Section: Perovskite Oxide-type Materials: Synthesis Strategies and Ch...mentioning

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: Perovskite Oxide-type Materials: Synthesis Strategies and Ch...mentioning

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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“…Recently, several reports have been published on the the recent progress of Bi2O3 and their application. Unfortunately, few literatures have systematically summarized the synthesis techniques of Bi2O3 and their application in the antibiotic degradation, which is a big challenge [32]. Bi2O3 photocatalyst quality is significantly influenced by the Bi2O3 synthesis method.…”

Section: Introductionmentioning

confidence: 99%

Efficient Removal of Amoxicillin, Ciprofloxacin, and Tetracycline from Aqueous Solution Utilizing Cu-doped Bi2O3 Material

Saadah,

Sutanto,

hadiyanto

et al. 2024

Preprint

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This study investigates the effectiveness of the Cu-doped Bi2O3 method for removing antibiotics. Cu at varying concentrations of 0%, 2%, 4%, 6%, and 8% was used to synthesize Bi2O3 material successfully. The optimal results were obtained by adding 4% Cu to the Bi2O3 matrix. Cu-doped Bi2O3 was characterized by an energy band gap of 2.32 eV, a crystal size of 37.04 nm, and α- Bi2O3 and Rouaite phases. Material containing Cu-doped Bi2O3 was used to degrade antibiotics such as amoxicillin (AMX), ciprofloxacin (CIP), and tetracycline (TC). The various removal techniques investigated include adsorption, photolysis, and photocatalysis. The photocatalytic procedure yielded the highest results in terms of degradation efficiency. The removal efficiency of each antibiotic using the photocatalytic method varies, with AMX at 52.06%, CIP at 61.72%, and TC at 69.44%. Cu-doped Bi2O3 degraded TC-type antibiotics more rapidly, with a reaction rate constant of 0.0065 minutes− 1, according to the results of the reaction rate constants. The high removal efficiency and rapid reaction rate indicate that Cu-doped Bi2O3 is an effective antibiotic removal agent, especially for tetracycline-type antibiotics.

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“…Therefore, taking into account the hazards and harmful effects of wastewater, it is worthwhile to try to remove RhB pollutants from it. The common removal methods for RhB are photocatalytic degradation [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21], adsorption [22][23][24], ion exchange [25,26], electrochemical [27,28], and biological treatment [29,30]. Among these methods, photocatalytic degradation is considered to be an effective technique for the removal of RhB [31,32].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Photocatalytic Performance, Mechanism, and Degradation Pathways of Rhodamine B with Bi2O3 Microrods under Visible-Light Irradiation

Ma,

Tang,

et al. 2024

Materials

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In the present work, the photodegradation of Rhodamine B with different pH values by using Bi2O3 microrods under visible-light irradiation was studied in terms of the dye degradation efficiency, active species, degradation mechanism, and degradation pathway. X-ray diffractometry, polarized optical microscopy, scanning electron microscopy, fluorescence spectrophotometry, diffuse reflectance spectra, Brunauer–Emmett–Teller, X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, UV–visible spectrophotometry, total organic carbon, and liquid chromatography–mass spectroscopy analysis techniques were used to analyze the crystal structure, morphology, surface structures, band gap values, catalytic performance, and mechanistic pathway. The photoluminescence spectra and diffuse reflectance spectrum (the band gap values of the Bi2O3 microrods are 2.79 eV) reveals that the absorption spectrum extended to the visible region, which resulted in a high separation and low recombination rate of electron–hole pairs. The photodegradation results of Bi2O3 clearly indicated that Rhodamine B dye had removal efficiencies of about 97.2%, 90.6%, and 50.2% within 120 min at the pH values of 3.0, 5.0, and 7.0, respectively. In addition, the mineralization of RhB was evaluated by measuring the effect of Bi2O3 on chemical oxygen demand and total organic carbon at the pH value of 3.0. At the same time, quenching experiments were carried out to understand the core reaction species involved in the photodegradation of Rhodamine B solution at different pH values. The results of X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, and X-ray diffractometer analysis of pre- and post-Bi2O3 degradation showed that BiOCl was formed on the surface of Bi2O3, and a BiOCl/Bi2O3 heterojunction was formed after acid photocatalytic degradation. Furthermore, the catalytic degradation of active substances and the possible mechanism of the photocatalytic degradation of Rhodamine B over Bi2O3 at different pH values were analyzed based on the results of X-ray diffractometry, radical capture, Fourier-transform infrared spectroscopy, total organic carbon analysis, and X-ray photoelectron spectroscopy. The degradation intermediates of Rhodamine B with the Bi2O3 photocatalyst in visible light were also identified with the assistance of liquid chromatography–mass spectroscopy.

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Photocatalytic behaviors of bismuth-based mixed oxides: Types, fabrication techniques and mineralization mechanism of antibiotics

Cited by 19 publications

References 140 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

Efficient Removal of Amoxicillin, Ciprofloxacin, and Tetracycline from Aqueous Solution Utilizing Cu-doped Bi2O3 Material

Investigation of the Photocatalytic Performance, Mechanism, and Degradation Pathways of Rhodamine B with Bi2O3 Microrods under Visible-Light Irradiation

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