UV–vis spectroscopic method for detection and removal of heavy metal ions in water using Ag doped ZnO nanoparticles

Ahmed, Aamir; Singh, Anoop; Padha, Bhavya; Sundramoorthy, Ashok K.; Tomar, Amit; Arya, Sandeep

doi:10.1016/j.chemosphere.2022.135208

Cited by 58 publications

(18 citation statements)

References 36 publications

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“…[ 175 ] In addition, nanomaterials, such as QDs, carbon nanotubes, metal nanoparticles, and other nanomaterials that are active, may be utilized to construct biosensors for measurement of the microorganisms and other tests that are employed for applications related to food protection. [ 175 , 185 , 186 ]…”

Section: Nanotechnology In Protection Of Foodmentioning

confidence: 99%

Future of Nanotechnology in Food Industry: Challenges in Processing, Packaging, and Food Safety

Singh¹,

Dutt

Sharma

et al. 2023

Global Challenges

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and methods. Nanoparticles are thought to be the smallest objects that may operate as a single entity, displaying novel behaviors and characteristics. [2] Since nanoparticles have a larger surface area and mass transfer rates than big particles (of the same composition), they seem to have higher biological and chemical activity, penetrability, catalytic behavior, enzymatic reactivity, and quantum characteristics. [3] The dimensions, construction, and properties of nanomaterials are used to classify them into several categories. Nanomaterials with a high surface-area-to-volume ratio (SA:V) have the potential to exhibit desirable physiochemical characteristics, including those related to diffusivity, solubility, color, thermodynamics, optics, and magnetization. [4] Nowadays, the food market is growing day by day. In 2023, the food market will generate $9.43 trillion in revenue. The market is expected to grow by 6.21% yearly. With a market volume of US$1.64 trillion in 2023, Confectionery & Snacks will be the market's largest sector. According to population estimates, US$1228.00 in income is expected per person in 2023. By 2023, internet sales in the food industry will account for 8.5% of total revenue. In 2023, it is estimated that the Food market would have a volume per person of 340.87 kg. Today, the market of food needs innovations that can make food that is easy to use, real, and delicious so that it can keep Over the course of the last several decades, nanotechnology has garnered a growing amount of attention as a potentially valuable technology that has significantly impacted the food industry. Nanotechnology helps in enhancing the properties of materials and structures that are used in various fields such as agriculture, food, pharmacy, and so on. Applications of nanotechnology in the food market have included the encapsulation and distribution of materials to specific locations, the improvement of flavor, the introduction of antibacterial nanoparticles into food, the betterment of prolonged storage, the detection of pollutants, enhanced storage facilities, locating, identifying, as well as consumer awareness. Labeling food goods with nano barcodes helps ensure their security and may also be used to track their distribution. This review article presents a discussion about current advances in nanotechnology along with its applications in the field of food-tech, food packaging, food security, enhancing life of food products, etc. A detailed description is provided about various synthesis routes of nanomaterials, that is, chemical, physical, and biological methods. Nanotechnology is a rapidly improving the field of food packaging and the future holds great opportunities for more enhancement via the development of new nanomaterials and nanosensors.

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Section: Nanotechnology In Protection Of Foodmentioning

confidence: 99%

Future of Nanotechnology in Food Industry: Challenges in Processing, Packaging, and Food Safety

Singh¹,

Dutt

Sharma

et al. 2023

Global Challenges

Self Cite

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“…In view of this fact, the regulatory agencies established the maximum concentration for these toxic metals in order to avoid environmental contamination. 24 Toxic metals can also be remediated using NPs. Khooso and co-workers achieved high removal efficiencies of Cr(VI), Pb(II), and Cd(II) obtained 89%, 79%, and 87% respectively by using nickel ferrite NPs.…”

Section: Nps As Remediators Of Toxic Metal(oid)s In the Environmentmentioning

confidence: 99%

The Dual role of Nanomaterials in the Environment

Souza

2022

SCE

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Unquestionably, nanoparticles (NPs) are present in all areas: food, medicine, electronics, industries, and others. The intense use of NPs has increased the concern about their fate in the environment and also the risk they may pose. On the other hand, the NPs are an important tool for environmental remediation and can be used to degrade and decrease of concentration different pollutants, such as toxic metals and also organic compounds. This scenario has motivated this review which aims to discuss the dual role of NPs in the environment by presenting their role as environmental remediators and also the possible effects on the environment such as the transformations that these particles can undergo which can increase or decrease their toxicity.

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“…The nanomaterials were classified as 0D (quantum dots) [15,16], 1D (carbon nanotube, nanorod, and nanowire) [17,18], 2D (graphene, MXene, MoS 2 , etc.) [19][20][21], and 3D (nanoparticles with different morphology) [22,23]. These nanomaterials exhibited unique properties and showed higher electrocatalytic activity in the determination of various analytes [24].…”

Section: Introductionmentioning

confidence: 99%

Graphene Nanoribbons/Manganese Oxide Nanocomposite Modified Electrode for Detection of Antimicrobial Drug Nitrofurantoin

Nagarajan¹,

Magesh

Sundramoorthy

et al. 2023

Journal of Nanomaterials

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The design and development of a new kind of cost-effective electrode material with excellent selectivity and stability are still a great challenge in the field of electrochemical sensors. Recently, researchers have paid more attention to the electrochemical reduction of nitro compounds due to their hazardous nature. Nitro compounds play a vital role in various industrial applications. However, the direct discharge of nitro compounds to the environment as industrial wastewater is harmful. In this study, a nanocomposite made of 1D graphene nanoribbons decorated with manganese dioxide (GNR-MnO2) was prepared to fabricate an electrochemical transducer for the determination of nitrofurantoin (NFT) in biofluids. First, 1D GNR was prepared by unzipping of multiwalled carbon nanotubes. Second, the GNR was decorated with MnO2 by the hydrothermal reduction method. As-prepared GNR-MnO2 nanocomposite was comprehensively characterized by field emission scanning electron microscopy with EDX, XRD, UV–visible, electrochemical impedance spectroscopy, and cyclic voltammetry. Moreover, GNR-MnO2-coated glassy carbon electrode (GCE) exhibited good electrocatalytic activity toward NFT. The electroreduction of NFT was found at −0.40 V which was 50 mV lower than bare GCE. GNR-MnO2 nanocomposite modified GCE showed a well-defined linear reduction peak current for NFT from 10 nM to 1,000 µM. The selectivity of the sensor was also analyzed in the presence of other nitro compounds which confirmed that NFT can be selectively detected at −0.4 V. The GNR-MnO2 modified electrode was also able to separate reduction peaks of other nitro compounds. In addition, the detection of NFT was carried out in human urine samples with a good recovery of 99.60%–98.60%.

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UV–vis spectroscopic method for detection and removal of heavy metal ions in water using Ag doped ZnO nanoparticles

Cited by 58 publications

References 36 publications

Future of Nanotechnology in Food Industry: Challenges in Processing, Packaging, and Food Safety

Future of Nanotechnology in Food Industry: Challenges in Processing, Packaging, and Food Safety

The Dual role of Nanomaterials in the Environment

Graphene Nanoribbons/Manganese Oxide Nanocomposite Modified Electrode for Detection of Antimicrobial Drug Nitrofurantoin

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