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Fundamentals Of Powder Diffraction And Structural Characterization Of Materials

In the last few decades of industrialization, the concentration of CO2 in the atmosphere had increased rapidly. Different organizations have invested considerable funds in research activities worldwide for CO2 capture and storage. To date, significant work has been done and various technologies have been proposed for CO2 capture and storage. Both adsorption and absorption are promising techniques for CO2 capture, but low-temperature adsorption processes using solid adsorbents are the prevailing technique nowadays. In this review paper, a variety of adsorbents such as carbonaceous materials, dry alkali metal-based sorbents, zeolites, metal–organic frameworks (MOFs) and microporous organic polymers (MOPs) have been studied. Various methods of chemical or physical modification and the effects of supporting materials have been discussed to enhance CO2 capture capacity of these adsorbents. Low-temperature (<100 °C) adsorption processes for CO2 capture are critically analyzed and concluded on the basis of information available so far in the literature. All the information in CO2 adsorption using different routes has been discussed, summarized and thoroughly presented in this review article. The most important comparative study of relatively new material MOFs and MOPs is carried out between the groups and with other sorbent as well.

/pdf/feasibility-of-co2-adsorption-by-solid-adsorbents-a-review-dkdv23p02v.pdf

Feasibility of CO2 adsorption by solid adsorbents: a review on low-temperature systems

Cyclodextrins are among the most remarkable macrocyclic molecules with significant theoretical and practical impacts in chemistry and biology. Cyclodextrins belong to the family of cage molecules due to their structure, which is composed of a hydrophobic cavity that can encapsulate other molecules. Indeed, the most characteristic feature of these compounds is their ability to form inclusion complexes with various molecules through host–guest interactions. This is at the origin of many applications. It is well known and widely reported in the literature that cyclodextrins and their derivatives have a wide variety of practical applications including pharmacy, medicine, foods, cosmetics, toiletries, catalysis, chromatography, biotechnology, nanotechnology, and textile industry. Cyclodextrins are also the object of numerous fundamental studies. In this review, we chose to highlight selected works on cyclodextrins published over the last 5 years by different research groups. The main objective is to summarize some of the recent developments related to the applications of cyclodextrins.

Cyclodextrins, from molecules to applications

Plasma-treated poly(ethylene oxide) nanofibers containing tea tree oil/beta-cyclodextrin inclusion complex for antibacterial packaging

Antibacterial poly(ethylene oxide) electrospun nanofibers containing cinnamon essential oil/beta-cyclodextrin proteoliposomes.

https://espace.library.uq.edu.au/view/UQ:329437/UQ329437OA.pdf

Encapsulation of gases in powder solid matrices and their applications: A review

Encapsulation of tea tree oil by amorphous beta-cyclodextrin powder.

https://espace.library.uq.edu.au/view/UQ:5b2c3ed/UQ5b2c3ed_OA.pdf

Changes in physicochemical properties of spray-dried camel milk powder over accelerated storage

Emulsion characterization via microfluidic devices: A review on interfacial tension and stability to coalescence

The use of CO2-α-cyclodextrin complex powder to hinder mold and yeast growth in cottage cheese was investigated. The powder was directly mixed into the curds before packaging to achieve different CO2 concentrations (300, 600, and 900 ppm, mg CO2/kg curd), followed by storing the samples at 7 and 25 degrees C for up to 6 weeks. The sample containers were opened to expose them to air for 15-20 min every week. The results showed the mold and yeast growth was significantly inhibited without affecting pH and moisture content of the curds. At 25 degrees C, mold and yeast growth occurred in the control samples (0 ppm CO2) at Day 5 while the samples with 300, 600, and 900 ppm CO2 were spoiled at Days 8, 9, and 10, respectively. At 7 degrees C, except for the control spoiled at Day 30, no mold and yeast were observed in other samples at the end of storage period.

Thao M. Ho

Papers

Encapsulation of gases in powder solid matrices and their applications: A review

Encapsulation of tea tree oil by amorphous beta-cyclodextrin powder.

Changes in physicochemical properties of spray-dried camel milk powder over accelerated storage

Emulsion characterization via microfluidic devices: A review on interfacial tension and stability to coalescence

An innovative approach to extend the shelf life of cottage cheese curds using food grade CO2‐α‐cyclodextrin complex powder: A preliminary study