Temperature activation of indirect exciton in nanostructures based on MoS2

The hydration of tricalcium silicate (C3S) with three grain sizes of monoclinic (M) and triclinic (T) modifications and on their thermally activated samples were investigated by exposure to water vapour at 80°C for 60 days. The products were investigated by XRD, TG and N2 adsorption. The smaller the particle size the greater was the hydration for both dried and activated samples from (M). In the activated samples a hydrate with 2θ values of 38.4°, 44.6° and 48.6° could be identified. Hydration increased with particle size for the unactivated (T) samples but after activation the intermediate size exhibited enhanced hydration. Thermal treatment at 950°C of (T) samples increased the surface active centers on the expense of those in the bulk. Changes produced in surface texture upon activation and/or hydration are discussed.

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The influence of activator type and temperature activation on the specific surface of corncob waste adsorbent

Journal of Physics Conference Series ◽

10.1088/1742-6596/1858/1/012050 ◽

2021 ◽

Vol 1858 (1) ◽

pp. 012050

Author(s):

Novia Rachmawati ◽

Muhammad Mujiburohman

Keyword(s):

Specific Surface ◽

Temperature Activation

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Increase in the radiative decay rate of the indirect exciton due to application of the magnetic field

Journal of Physics Conference Series ◽

10.1088/1742-6596/1851/1/012011 ◽

2021 ◽

Vol 1851 (1) ◽

pp. 012011

Author(s):

P A Belov

Keyword(s):

Magnetic Field ◽

Decay Rate ◽

Radiative Decay ◽

Radiative Decay Rate ◽

Indirect Exciton ◽

The Magnetic Field

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Comparative Study of Different Activation Treatments for the Preparation of Activated Carbon: A Mini-Review

Science Progress ◽

10.3184/003685017x14967570531606 ◽

2017 ◽

Vol 100 (3) ◽

pp. 299-312 ◽

Cited By ~ 7

Author(s):

Muhammad Imran Din ◽

Sania Ashraf ◽

Azeem Intisar

Keyword(s):

Activated Carbon ◽

Comparative Study ◽

Raw Materials ◽

Chemical Activation ◽

Comparative Approach ◽

Adsorption Mechanisms ◽

Temperature Activation ◽

Activation Conditions ◽

Physical And Chemical ◽

Characterisation Techniques

In this review, various methods of preparation of activated carbon from agricultural and commercial waste material are reviewed. In addition, we also discuss various activation treatments using a comparative approach. The data are organised in tabulated form for ease of comparative study. A review of numerous characterisation techniques is also provided. The effect of time and temperature, activation conditions, carbonisation conditions and impregnation ratios are explained and several physical and chemical activation treatments of raw materials and their impact on the micro- and mesoporous volumes and surface area are discussed. Lastly, a review of adsorption mechanisms of activated carbon (AC) is also provided.

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