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With reference to the hematene, consider the following statements:
- It is extracted from naturally occurring hematite.
- It is not capable of withstanding high laser intensities.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'A'. Can you explain this answer?
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With reference to the hematene, consider the following statements: It ...
Statement 1: It is extracted from naturally occurring hematite.
Hematene is indeed extracted from naturally occurring hematite. Hematite is an iron oxide mineral that is commonly found in rocks and soil. It has a characteristic reddish-brown color and is often used as an ore of iron. Hematite can be found in various locations around the world, including Brazil, Australia, and the United States.
The extraction process involves converting hematite into hematene. This is typically done by exfoliating the thin layers of hematite using a technique known as liquid phase exfoliation. In this process, the hematite is mixed with a solvent to create a dispersion, and then sonicated to separate the layers. The resulting material is hematene, which consists of single or few-layered flakes of iron oxide.
Statement 2: It is not capable of withstanding high laser intensities.
This statement is incorrect. Hematene has actually been found to be highly stable and capable of withstanding high laser intensities.
Research conducted on hematene has demonstrated its potential for various applications, including in optoelectronic devices. One study published in the journal "Nature Nanotechnology" found that hematene exhibits excellent stability even when subjected to intense laser irradiation. The researchers subjected hematene flakes to laser intensities up to 100 megawatts per square centimeter (MW/cm2) and observed no degradation or damage to the material. This suggests that hematene is highly resistant to laser-induced damage and can be used in high-intensity laser applications.
Furthermore, another study published in the journal "ACS Nano" reported that hematene has a high photothermal conversion efficiency, meaning it can efficiently convert light into heat. This property makes hematene promising for applications such as photothermal therapy, which involves using light-induced heat to treat diseases like cancer.
Therefore, both statements are not correct. Statement 1 is correct as hematene is indeed extracted from naturally occurring hematite. However, statement 2 is incorrect as hematene has been found to be capable of withstanding high laser intensities.
Hematene is indeed extracted from naturally occurring hematite. Hematite is an iron oxide mineral that is commonly found in rocks and soil. It has a characteristic reddish-brown color and is often used as an ore of iron. Hematite can be found in various locations around the world, including Brazil, Australia, and the United States.
The extraction process involves converting hematite into hematene. This is typically done by exfoliating the thin layers of hematite using a technique known as liquid phase exfoliation. In this process, the hematite is mixed with a solvent to create a dispersion, and then sonicated to separate the layers. The resulting material is hematene, which consists of single or few-layered flakes of iron oxide.
Statement 2: It is not capable of withstanding high laser intensities.
This statement is incorrect. Hematene has actually been found to be highly stable and capable of withstanding high laser intensities.
Research conducted on hematene has demonstrated its potential for various applications, including in optoelectronic devices. One study published in the journal "Nature Nanotechnology" found that hematene exhibits excellent stability even when subjected to intense laser irradiation. The researchers subjected hematene flakes to laser intensities up to 100 megawatts per square centimeter (MW/cm2) and observed no degradation or damage to the material. This suggests that hematene is highly resistant to laser-induced damage and can be used in high-intensity laser applications.
Furthermore, another study published in the journal "ACS Nano" reported that hematene has a high photothermal conversion efficiency, meaning it can efficiently convert light into heat. This property makes hematene promising for applications such as photothermal therapy, which involves using light-induced heat to treat diseases like cancer.
Therefore, both statements are not correct. Statement 1 is correct as hematene is indeed extracted from naturally occurring hematite. However, statement 2 is incorrect as hematene has been found to be capable of withstanding high laser intensities.
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With reference to the hematene, consider the following statements: It ...
Researchers have come up with a new and highly efficient optical limiter using a novel 2D material, ‘hematene’.
- Nanoflakes of a material called hematene extracted from iron ore have been found capable of withstanding and acting as shield from high laser intensities.
- Hence it could be used to make devices called optical limiters that can protect sensitive optical equipment from light-induced damage.
- Radiation from laser sources is highly concentrated and powerful and can be detrimental to sensitive equipment such as sensors, detectors, and other optical devices.
- When the input intensity increases optical limiters control the amount of light that passes through, thereby preventing damage to the optical component.
- These devices are often useful in laser technologies, military, telecommunications, aircrafts, and scientific research in several ways.
- They found that 2D nanoflakes of hematene is capable of withstanding very high laser intensities, and they exhibited excellent optical limiting of green laser light (532 nm) while maintaining a high linear transmission (about 87%) for low-intensity light.
Key facts about Hematene:
- It is extracted from naturally occurring hematite, the mineral form of iron(III) oxide, using a combination of sonication, centrifugation and vacuum-assisted filtration.
- It measures 3 atoms thick and has a more efficient photocatalysis.
- It is ferromagnetic (the mechanism by which certain materials like iron form permanent magnets, or are attracted to magnets) like a common magnet.
- It is capable of withstanding and acting as shield from high laser intensities.
Hence only statement 1 is correct.
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With reference to the hematene, consider the following statements: It is extracted from naturally occurring hematite. It is not capable of withstanding high laser intensities.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?
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With reference to the hematene, consider the following statements: It is extracted from naturally occurring hematite. It is not capable of withstanding high laser intensities.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about With reference to the hematene, consider the following statements: It is extracted from naturally occurring hematite. It is not capable of withstanding high laser intensities.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for With reference to the hematene, consider the following statements: It is extracted from naturally occurring hematite. It is not capable of withstanding high laser intensities.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?.
With reference to the hematene, consider the following statements: It is extracted from naturally occurring hematite. It is not capable of withstanding high laser intensities.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about With reference to the hematene, consider the following statements: It is extracted from naturally occurring hematite. It is not capable of withstanding high laser intensities.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for With reference to the hematene, consider the following statements: It is extracted from naturally occurring hematite. It is not capable of withstanding high laser intensities.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?.
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