Decontamination of emerging pharmaceutical pollutants using carbon-dots as robust materials

González-González, Reyna Berenice; Sharma, Ashutosh; Parra‐Saldívar, Roberto; Ramirez‐Mendoza, Ricardo A.; Bilal, Muhammad; Iqbal, Hafiz M.N.

doi:10.1016/j.jhazmat.2021.127145

Cited by 105 publications

(29 citation statements)

References 124 publications

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“…As a result, CD-based photocatalysts are gaining traction as a viable decontamination option for pharmaceutical pollutants. CDs play a vital role in the performance of photocatalysts, due to their unique up-conversion property, electron transfer capabilities, and effective separation of photogenerated carriers [ 130 ].…”

Section: Applications Of Cdsmentioning

confidence: 99%

Recent Advances in Synthesis, Modification, Characterization, and Applications of Carbon Dots

Pundi

Chang

2022

Polymers

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Although there is significant progress in the research of carbon dots (CDs), some challenges such as difficulty in large-scale synthesis, complicated purification, low quantum yield, ambiguity in structure-property correlation, electronic structures, and photophysics are still major obstacles that hinder the commercial use of CDs. Recent advances in synthesis, modification, characterization, and applications of CDs are summarized in this review. We illustrate some examples to correlate process parameters, structures, compositions, properties, and performances of CDs-based materials. The advances in the synthesis approach, purification methods, and modification/doping methods for the synthesis of CDs are also presented. Moreover, some examples of the kilogram-scale fabrication of CDs are given. The properties and performance of CDs can be tuned by some synthesis parameters, such as the incubation time and precursor ratio, the laser pulse width, and the average molar mass of the polymeric precursor. Surface passivation also has a significant influence on the particle sizes of CDs. Moreover, some factors affect the properties and performance of CDs, such as the polarity-sensitive fluorescence effect and concentration-dependent multicolor luminescence, together with the size and surface states of CDs. The synchrotron near-edge X-ray absorption fine structure (NEXAFS) test has been proved to be a useful tool to explore the correlation among structural features, photophysics, and emission performance of CDs. Recent advances of CDs in bioimaging, sensing, therapy, energy, fertilizer, separation, security authentication, food packing, flame retardant, and co-catalyst for environmental remediation applications were reviewed in this article. Furthermore, the roles of CDs, doped CDs, and their composites in these applications were also demonstrated.

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Section: Applications Of Cdsmentioning

confidence: 99%

Recent Advances in Synthesis, Modification, Characterization, and Applications of Carbon Dots

Pundi

Chang

2022

Polymers

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“…Nanomaterials with peroxidase-like activity reported are metal-based nanoparticles, metal oxide-based nanomaterials, carbon-based nanomaterials (CDs), metal-organic frameworks (MOFs), hybrid nanostructures, among others. These micro and nano-materials possess excellent catalytic properties in colorimetric sensors, pollutants degradation, and disinfection [ 102 , 108 , 109 , 110 ].…”

Section: Nanozyme Biosensorsmentioning

confidence: 99%

Enzyme (Single and Multiple) and Nanozyme Biosensors: Recent Developments and Their Novel Applications in the Water-Food-Health Nexus

et al. 2021

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The use of sensors in critical areas for human development such as water, food, and health has increased in recent decades. When the sensor uses biological recognition, it is known as a biosensor. Nowadays, the development of biosensors has been increased due to the need for reliable, fast, and sensitive techniques for the detection of multiple analytes. In recent years, with the advancement in nanotechnology within biocatalysis, enzyme-based biosensors have been emerging as reliable, sensitive, and selectively tools. A wide variety of enzyme biosensors has been developed by detecting multiple analytes. In this way, together with technological advances in areas such as biotechnology and materials sciences, different modalities of biosensors have been developed, such as bi-enzymatic biosensors and nanozyme biosensors. Furthermore, the use of more than one enzyme within the same detection system leads to bi-enzymatic biosensors or multi-enzyme sensors. The development and synthesis of new materials with enzyme-like properties have been growing, giving rise to nanozymes, considered a promising tool in the biosensor field due to their multiple advantages. In this review, general views and a comparison describing the advantages and disadvantages of each enzyme-based biosensor modality, their possible trends and the principal reported applications will be presented.

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“…For ion exchange, the pre-treatment of all the samples is always a requirement and for biological methods, standardization is required and in most cases, these methods have a poor efficiency. Of these methods, photocatalysis is the most preferred method by researchers as it has been shown to degrade complex pollutants, is easy to use and can produce reproducible results [ 9 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

“…These materials can be classified in to three categories, namely, Hematite (α Fe 2 O 3 ), Maghemite (γ Fe 2 O 3 ) and the magnetite (Fe 3 O 4 ) [ 2 , 9 ]. Hematite is the most preferred form as a photocatalyst, where-as maghemite and magnetite are primarily used for drug delivery, energy storage and data storage [ 10 ]. The degradation of pollutants using iron-based materials depends on the stability and the surface area of the material.…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis of iron oxide nanoparticles for the degradation of methylene blue dye, sulfisoxazole antibiotic and removal of bacteria from real water

Mahlaule-Glory

Mapetla

Makofane

et al. 2022

Heliyon

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Decontamination of emerging pharmaceutical pollutants using carbon-dots as robust materials

Cited by 105 publications

References 124 publications

Recent Advances in Synthesis, Modification, Characterization, and Applications of Carbon Dots

Recent Advances in Synthesis, Modification, Characterization, and Applications of Carbon Dots

Enzyme (Single and Multiple) and Nanozyme Biosensors: Recent Developments and Their Novel Applications in the Water-Food-Health Nexus

Biosynthesis of iron oxide nanoparticles for the degradation of methylene blue dye, sulfisoxazole antibiotic and removal of bacteria from real water

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