Silver and titanium oxides for the removal of phenols from pharmaceutical wastewater

Mustapha, Sherif Ishola; Aderibigbe, Fatai Alade; Adewoye, Tunmise Latifat; Mohammed, Ishaq Alhassan; Odey, Theresa Ogonye

doi:10.1016/j.matpr.2020.04.669

Cited by 7 publications

(6 citation statements)

References 19 publications

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“…Phenols are mostly found in the wastewater discharged from pharmaceutical industries, phenolic resin production, and dyeing‐related activities as it is the major raw material for these chemical processes. [ 141 ] Unlawful disposals of highly carcinogenic and toxic phenols are dangerous as they can denature proteins with concentrations of only 0.1–0.2 mg L –1 and even lead to protein precipitation at higher concentrations. [ 142 ] For mankind, unconsciously intake of phenols can cause serious irritation to the eyes, skin, and mucosal of the respiratory system.…”

Section: Fundamental Mechanism Of 2d‐mediated Cocatalysts With 2d G‐c3n4mentioning

confidence: 99%

Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C₃N₄ Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification

Ling

Ong

2022

Adv Funct Materials

136

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Sparked by natural photosynthesis, solar photocatalysis using metal‐free graphitic carbon nitride (g‐C3N4) with appealing electronic structure has turned up as the most captivating technique to the quest for sustainable energy generation and pollution‐free environment. Nonetheless, low‐dimensional g‐C3N4 is thwarted from sluggish kinetics and rapid recombination of photogenerated carriers upon light irradiation. Among multifarious modification strategies, engineering 2D cocatalysts is anticipated to accelerate redox kinetics, augment active sites and ameliorate electron–hole separation of 2D g‐C3N4 for boosted activity thanks to its face‐to‐face contact surface. It is of timely and technological significance to review the 2D/2D interfaces with state‐of‐the‐art 2D cocatalysts, spanning from carbon‐containing to phosphorus‐containing, metal dichalcogenide, and other cocatalysts. Fundamental principles for each photocatalytic application will be introduced. Thereafter, the recent advances of 2D/2D cocatalyst‐mediated g‐C3N4 systems will be critically evaluated based on their interfacial engineering, emerging roles, and impacts toward stability and catalytic efficiency. Importantly, mechanistic insights into the charge dynamics and structure–performance relationship will be deciphered. Last, noteworthy research directions are prospected to deliver insightful ideas for future development of g‐C3N4. Overall, this review is anticipated to serve as a scaffold and cornerstone in designing dimensionality‐dependent 2D cocatalyst‐assisted g‐C3N4 toward renewable energy and ecologically green environment.

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Section: Fundamental Mechanism Of 2d‐mediated Cocatalysts With 2d G‐c3n4mentioning

confidence: 99%

Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C₃N₄ Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification

Ling

Ong

2022

Adv Funct Materials

136

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“…Moreover, several designs of photoanodes can be fabricated by various morphologies of ZnO for DSSCs, perhaps more than any other metal oxides. The crystalline structure of ZnO is conductive to anisotropic growth, which is different from the crystalline structure of TiO 2 , which makes it the main choice for DSSCs with photoanodes containing nanosheets, nanowires, or nanorods [79][80][81]. ZnO should attain higher efficiency to be used in DSSCs.…”

Section: Application Of Zno Composites For Solar Cellsmentioning

confidence: 99%

A review on zinc oxide composites for energy storage applications: solar cells, batteries, and supercapacitors

Bui

Kumar²,

Alinaghibeigi

et al. 2021

jcc

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Zinc oxide (ZnO) is used for various purposes because of its special physico-chemical properties, including large band gap, high binding energy of exciton, nontoxicity, high chemical and thermal stability, large piezoelectric constants, and wurtzite crystal structure with various and widespread applications in electronics, optoelectronics, biochemical sensing, biomedical, and energy-saving systems. This review mainly aimed to present the recent improvement in ZnO-based composite materials with utilization in energy storage systems with a specific focus on lithium-ion batteries, dye-sensitized solar cells, and supercapacitors. The first part of this paper looks at the structure and properties of ZnO and then describes some of the most common synthesizing methods of ZnO composites, including electrochemical, chemical, solvo/hydrothermal, and physical deposition methods. Finally, the recent advancement of ZnO-based composite materials applied in energy storage systems was discussed.

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“…Freshwater pollutants include bacterial microorganisms, as well as simple and complex chemicals [6]. Phenol and its derivatives are typical pollutants in wastewater and effluents from various industries, including petrochemicals, pharmaceuticals, textiles, pesticides, resins, manufacturing, steel, and herbicides [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…Biosynthesis, as a means of synthesizing metal oxide nanoparticles, has proven to be one of the best synthetic processes, primarily because of its environmentally friendly principles and the potential to create new custom materials [7]. Phytosynthesis is considered a safe, cost-effective, biocompatible, nontoxic, sustainable, and environmentally friendly process [1].…”

Section: Introductionmentioning

confidence: 99%

Phytosynthesis of TiO2 Nanoparticles Using E. crassipes Leaf Extracts, Their Photocatalytic Evaluation and Microbicide Effect

Velázquez-Hernández

García-Rivas

Martínez-Gallegos

et al. 2022

International Journal of Photoenergy

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In the present research work, the photocatalytic and microbicidal activities of titanium nanoparticles (TiO2 NPs) were evaluated. TiO2 NPs were obtained through the phytosynthesis process, using Eichhornia crassipes leaf extract. In order to determine whether particle size improves photocatalytic and microbicidal activities, the pH of the photosynthesized was modified to 12, 7, and 4. The TiO2 NPs modified were characterized by UV-Vis spectroscopy (UV-Vis), Fourier transform infrared spectroscopy (FT-IR), and high-resolution transmission electron microscopy (HR-TEM) to reveal the crystalline and morphological nature of the phytosynthesized TiO2 NPs. UV-Vis analysis revealed that the wavelength for the TiO2 NPs was 327 nm, while FT-IR confirmed the presence of TiO2 NPs at peaks located between 536 and 532 cm-1. Finally, HR-TEM analysis showed that all nanoparticles had a TiO2 composition and a particle size ranging from 25 to 35 nm. For the photocatalytic and microbicidal tests, three concentrations of nanoparticles were used (100, 50, and 10 mg/L), and the results showed that TiO2 nanoparticles at a concentration of 10 mg·L-1 demonstrated excellent photocatalytic activity in photodegrading phenol [10 mg·L-1] up to 98.7%, while their microbicidal activity was more effective in contact with S. aureus than with E. coli, using a TiO2 NPs concentration of 100 mg·L-1.

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Silver and titanium oxides for the removal of phenols from pharmaceutical wastewater

Cited by 7 publications

References 19 publications

Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C₃N₄ Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification

Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C₃N₄ Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification

A review on zinc oxide composites for energy storage applications: solar cells, batteries, and supercapacitors

Phytosynthesis of TiO2 Nanoparticles Using E. crassipes Leaf Extracts, Their Photocatalytic Evaluation and Microbicide Effect

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Silver and titanium oxides for the removal of phenols from pharmaceutical wastewater

Cited by 7 publications

References 19 publications

Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C3N4 Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification

Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C3N4 Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification

A review on zinc oxide composites for energy storage applications: solar cells, batteries, and supercapacitors

Phytosynthesis of TiO2 Nanoparticles Using E. crassipes Leaf Extracts, Their Photocatalytic Evaluation and Microbicide Effect

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Product

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Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C₃N₄ Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification

Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C₃N₄ Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification