Photocatalytic degradation of tetracycline using hybrid Ag/Ag2S@BiOI nanowires: Degradation mechanism and toxicity evaluation

Ha, Ga-Hyeon; Mohan, Harshavardhan; Oh, Hyeon-Seung; Kim, Gitae; Seralathan, Kamala-Kannan; Shin, Taeho

doi:10.1016/j.chemosphere.2022.135091

Cited by 23 publications

(9 citation statements)

References 45 publications

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“…MnON/RGO(1:3) has the highest BET surface area, clearly implying its superior photocatalytic efficiency over other materials. 39,40 3.2. Photocatalytic Water Splitting.…”

Section: Resultsmentioning

confidence: 99%

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Visible-Light Photocatalytic Water Splitting and Norfloxacin Degradation by Reduced Graphene Oxide-Coupled MnON Nanospheres

Mohan

Vadivel

Sathya³

et al. 2022

ACS Appl. Energy Mater.

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Photocatalytic water splitting has gained considerable attention owing to the sustainable nature of hydrogen as a clean energy source alternative to fossil fuels. In this study, nanocomposites consisting of manganese oxynitride and reduced graphene oxide were synthesized by the combined involvement of a solvothermal process and Hummer’s method and examined for their photocatalytic applications for water splitting hydrogen production and degradation of norfloxacin as a model pollutant. Spectroscopic and structural analyses showed successful formation of the stable composite in which manganese oxynitride nanoparticles are decorated on graphene sheets. With increasing content of graphene oxide in the composite, it showed the enhanced photocatalytic efficiency in water splitting hydrogen evolution. This is well explained by the large surface area, more light absorption, and interfacial charge transfer in the composite photocatalyst. The hydrogen evolution rates of MnON nanoparticles and MnON/RGO composites of mass ratios 1:1, 1:2, and 1:3 were measured as 250.1, 456.2, 543.6, and 708.5 μmol g–1 min–1, respectively, and the oxygen evolution rates were measured as 129.0, 229.4, 273.4, and 354.6 μmol g–1 min–1, respectively, suggesting the important roles of reduced graphene oxide. The photocatalysts also demonstrated enhanced stability and recyclability after multiple uses.

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“…MnON/RGO(1:3) has the highest BET surface area, clearly implying its superior photocatalytic efficiency over other materials. 39,40 3.2. Photocatalytic Water Splitting.…”

Section: Resultsmentioning

confidence: 99%

“…As summarized in Table the BET surface areas of MnON, RGO, and MnON/RGO nanocomposites of different compositions (1:1, 1:2, and 1:3) were measured as 112, 419, 458, 469, and 481 m 2 /g, respectively. MnON/RGO(1:3) has the highest BET surface area, clearly implying its superior photocatalytic efficiency over other materials. , …”

Section: Resultsmentioning

confidence: 99%

Visible-Light Photocatalytic Water Splitting and Norfloxacin Degradation by Reduced Graphene Oxide-Coupled MnON Nanospheres

Mohan

Vadivel

Sathya³

et al. 2022

ACS Appl. Energy Mater.

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“…Nb 2 O 5 superstructure nanoparticles demonstrated the lowest photocurrent density of 0.037 mA/cm 2 and PdS nanoparticles showed the density of 0.044 mA/cm 2 . On the other hand, the Nb 2 O 5 /PdS heterostructure exhibited a maximum photocurrent density of 0.083 mA/cm 2 . The higher photocurrent density seems attributed to the smaller bandgap of Nb 2 O 5 /PdS and efficient light absorption.…”

Section: Photocurrent Measurementsmentioning

confidence: 98%

“…[33] BET surface area analysis Analyzing the Brunauer, Emmett, and Teller (BET) surface area on the photocatalytic performance of the material is an important aspect owing to its direct influence. [2,34] The BET surface areas (Table 1) of Nb 2 O 5 , PdS, and Nb 2 O 5 /PdS are 389.1, 35.4 and 469.2 m 2 /g, respectively. The large surface area of Nb 2 O 5 /PdS composites is beneficial for water splitting since it provides more active sites for light absorption and photocatalysis.…”

Section: Photocurrent Measurementsmentioning

confidence: 99%

“…The relentless increase in global energy demand in recent years alongside environmental pollution as a result of hyper industrialization and urbanization has evolved to become a major threat to mankind in the future. [1,2] Conventional energy resources, such as fossil fuels have been extensively explored. [3] However, fossil fuels have the major disadvantage of excessive CO 2 emissions amounting to nearly 7.8 billion metric tonnes annually, [4][5][6] in addition to several other greenhouse gases causing potential damage to both biodiversity and atmospheric health.…”

Section: Introductionmentioning

confidence: 99%

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PdS Coupled Nb₂O₅ Superstructure for Photocatalytic Overall Water Splitting

et al. 2023

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An efficient approach to resolve the current energy crisis is the photocatalytic production of hydrogen that is renewable and readily available from water and solar energy. In this study, we prepared nanocomposites by coupling PdS nanodisks on selfassembled Nb 2 O 5 superstructures and demonstrated them as an efficient water splitting photocatalyst for oxygen and hydrogen production. Various characterization techniques were employed to examine the physical and chemical properties and advantages of the Nb 2 O 5 /PdS nanocomposite over bare Nb 2 O 5 superstructure and PdS nanoparticles. The synthesized nanocomposite showed a hydrogen evolution rate of 665 μmol g À 1 min À 1 and oxygen evolution rate of 211 μmol g À 1 min À 1 , which is twice as high as that of Nb 2 O 5 superstructure and three times higher than that of PdS nanoparticles. The composite survived without any structural deterioration, even after six treatment cycles, thereby indicating its practical applicability.

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Recent Advances in Bioelectronics for Localized Drug Delivery

Jiang,

Wu,

Xiao

et al. 2023

Small Methods

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The last decade has witnessed remarkable advancements in bioelectronics, ushering in a new era of wearable and implantable devices for drug delivery. By utilizing miniaturized system design and/or flexible materials, bioelectronics illustrates ideal integration with target organs and tissues, making them ideal platforms for localized drug delivery. Furthermore, the development of electrically assisted drug delivery systems has enhanced the efficiency and safety of therapeutic administration, particularly for the macromolecules that encounter additional challenges in penetrating biological barriers. In this review, a concise overview of recent progress in bioelectronic devices for in vivo localized drug delivery, with highlights on the latest trends in device design, working principles, and their corresponding functionalities, is provided. The reported systems based on their targeted delivery locations as wearable systems, ingestible systems, and implantable systems are categorized. Each category is introduced in detail by highlighting the special requirements for devices and the corresponding solutions. The remaining challenges in this field and future directions are also discussed.

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Photocatalytic degradation of tetracycline using hybrid Ag/Ag2S@BiOI nanowires: Degradation mechanism and toxicity evaluation

Cited by 23 publications

References 45 publications

Visible-Light Photocatalytic Water Splitting and Norfloxacin Degradation by Reduced Graphene Oxide-Coupled MnON Nanospheres

Visible-Light Photocatalytic Water Splitting and Norfloxacin Degradation by Reduced Graphene Oxide-Coupled MnON Nanospheres

PdS Coupled Nb₂O₅ Superstructure for Photocatalytic Overall Water Splitting

Recent Advances in Bioelectronics for Localized Drug Delivery

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Photocatalytic degradation of tetracycline using hybrid Ag/Ag2S@BiOI nanowires: Degradation mechanism and toxicity evaluation

Cited by 23 publications

References 45 publications

Visible-Light Photocatalytic Water Splitting and Norfloxacin Degradation by Reduced Graphene Oxide-Coupled MnON Nanospheres

Visible-Light Photocatalytic Water Splitting and Norfloxacin Degradation by Reduced Graphene Oxide-Coupled MnON Nanospheres

PdS Coupled Nb2O5 Superstructure for Photocatalytic Overall Water Splitting

Recent Advances in Bioelectronics for Localized Drug Delivery

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PdS Coupled Nb₂O₅ Superstructure for Photocatalytic Overall Water Splitting