Modified fibrous silica for enhanced carbon dioxide adsorption: Role of metal oxides on physicochemical properties and adsorption performance

Yusof, S.M.; Othaman, Rizafizah; Setiabudi, Herma Dina; Teh, Lee Peng

doi:10.1016/j.jssc.2020.121845

Cited by 23 publications

(14 citation statements)

References 86 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…MgO with fibrous silica was utilized to improve the performance of CO 2 absorption via ultrasound-assisted impregnation [40]. MgO-fibrous silica showed the highest absorption of 9.77 mmolg −1 , while fibrous silica without MgO showed an absorbance of 0.52 mmolg −1 .…”

Section: Metal Oxides For Co 2 Uptakementioning

confidence: 99%

Metal Oxides as Catalyst/Supporter for CO2 Capture and Conversion, Review

et al. 2022

View full text Add to dashboard Cite

Various carbon dioxide (CO2) capture materials and processes have been developed in recent years. The absorption-based capturing process is the most significant among other processes, which is widely recognized because of its effectiveness. CO2 can be used as a feedstock for the production of valuable chemicals, which will assist in alleviating the issues caused by excessive CO2 levels in the atmosphere. However, the interaction of carbon dioxide with other substances is laborious because carbon dioxide is dynamically relatively stable. Therefore, there is a need to develop types of catalysts that can break the bond in CO2 and thus be used as feedstock to produce materials of economic value. Metal oxide-based processes that convert carbon dioxide into other compounds have recently attracted attention. Metal oxides play a pivotal role in CO2 hydrogenation, as they provide additional advantages, such as selectivity and energy efficiency. This review provides an overview of the types of metal oxides and their use for carbon dioxide adsorption and conversion applications, allowing researchers to take advantage of this information in order to develop new catalysts or methods for preparing catalysts to obtain materials of economic value.

show abstract

Section: Metal Oxides For Co 2 Uptakementioning

confidence: 99%

Metal Oxides as Catalyst/Supporter for CO2 Capture and Conversion, Review

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The optimum amount of amine obtained in this study was 60 wt.% for the CO2 adsorption. Yusof et al [20] examined the effect of metal oxide on fibrous silica (FS) for CO2 physisorption and chemisorption. They reported that the high surface area and porosity enhanced the dispersion of metal oxide, together with an increase of the accessibility of CO2.…”

Section: Silica-based Adsorbentsmentioning

confidence: 99%

“…(B) Reusability of CaO-FS on CO2adsorption. (Reproduced from Figure9of Ref [20]. with copyright permission from Elsevier).…”

mentioning

confidence: 99%

Bifunctional Materials for CO₂ Adsorption: Short Review

Yusof

Teh

2021

JCEIB

View full text Add to dashboard Cite

In recent years, there has been growing interest in adsorbents with high surface area, high porosity, high stability and high selectivity for CO2 adsorption. By the incorporation of the additive on the supports such as zeolite, silica, and carbon, the physicochemical properties of the adsorbent and CO2 adsorption performance can be enhanced. In this review, we focus on the overview of bifunctional materials (BFMs) for CO2 adsorption. The findings of this study suggests that the high surface area and high porosity of the support provide a good medium for high dispersion and accessibility of additives (amine or metal oxide), enhancing the CO2 adsorption efficiency. The excessive additive however may lead to a decrease of CO2 adsorption performance due to pore blockage and the decrease of active sites for CO2 interactions. The synergistic relationship of the supporting material and additive is significant towards the enhancement of CO2 adsorption.

show abstract

“…At present, this disadvantage can be overcome to some extent by using promoters, such as metal nitrates or carbonates, to form oxides with MgO. [11][12][13] In many cases, MgO-based adsorbents (MA) doped with alkali metal salts show improved capacity for CO 2 capture in intermediate temperatures.…”

Section: Introductionmentioning

confidence: 99%

“…At present, this disadvantage can be overcome to some extent by using promoters, such as metal nitrates or carbonates, to form oxides with MgO. 11–13 In many cases, MgO-based adsorbents (MA) doped with alkali metal salts show improved capacity for CO 2 capture in intermediate temperatures. Owing to the dissolution of CO 2 , which can form carbonate ions with molten salt, and subsequent transport of CO 2 species to the MgO surface for reaction, many studies have focused on using molten salts for improving the CO 2 -capture capacity at intermediate temperatures.…”

Section: Introductionmentioning

confidence: 99%