Investigation of dye removal ability and reusability of green and sustainable silica and carbon-silica hybrid aerogels prepared from paddy waste ash

Koyuncu, Dilşad Dolunay Eslek; Okur, Müjgan

doi:10.1016/j.colsurfa.2021.127370

Cited by 17 publications

(5 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Skeletal density value is almost closer to the bulk density. These two values are gained by the helium pycnometry [38].…”

Section: Skeletal Densitymentioning

confidence: 99%

Porous Aerogel Structures as Promising Materials for Photocatalysis, Thermal Insulation Textiles, and Technical Applications: A Review

Lee,

Arshad,

Dahshan

et al. 2023

Catalysts

View full text Add to dashboard Cite

Aerogels, due to their unique features like lightweight, ultra-low thermal conductivity, and design variations, have gotten a lot of interest in thermal insulation, photocatalysis, and protective areas. Besides their superior thermal properties, aerogel thermal insulation and photocatalyst materials also possess many inherent flaws, such as handling issues, high manufacturing costs, and low strength as well as toughness. The most persuasive and successful ways to improve photocatalytic and thermal insulating qualities while lowering costs are composition optimization and microstructure reconstruction. Their high surface area and porosity make them ideal for enhancing the efficiency and capacity of these devices. Research may lead to more efficient and longer-lasting energy storage solutions. This review describes the characteristics, microstructural reconstruction, design variation, and properties of all aerogel fabrication techniques and provides a comprehensive overview of scientific achievements linked to them. The effectiveness of raw material compositions, properties, and mechanical parameters are also discussed. The major goal of this review is to highlight the aerogel-based materials and design variations and to explore the most potential development trends for photocatalysis and thermal applications. The industrial as well as technical applications of silica aerogels are also highlighted. This review highlights futuristic applications of aerogel-based textile materials to alleviate the CO2 burden on our atmosphere, either by providing next-level thermal insulation or by employing them in CO2 mitigating technologies such as CO2 capture.

show abstract

“…Skeletal density value is almost closer to the bulk density. These two values are gained by the helium pycnometry [38].…”

Section: Skeletal Densitymentioning

confidence: 99%

Porous Aerogel Structures as Promising Materials for Photocatalysis, Thermal Insulation Textiles, and Technical Applications: A Review

Lee,

Arshad,

Dahshan

et al. 2023

Catalysts

View full text Add to dashboard Cite

show abstract

“…Different types of dye have been successfully adsorbed onto varieties of silica-based adsorbents (Arasi et al 2021;Benvenuti et al 2020;Koyuncu and Okur 2021); however, it was noted that the functionalization of these silica adsorbents greatly enhanced their dye adsorptive capacity. Consequently, different surface-modified silica-based adsorbents (Bensedira et al 2022;Cao et al 2020;Gomaa et al 2022;Li et al 2020d;Zein et al 2020) have been used to adsorb different dyes.…”

Section: Silicamentioning

confidence: 99%

Methods to prepare biosorbents and magnetic sorbents for water treatment: a review

et al. 2023

View full text Add to dashboard Cite

Access to drinkable water is becoming more and more challenging due to worldwide pollution and the cost of water treatments. Water and wastewater treatment by adsorption on solid materials is usually cheap and effective in removing contaminants, yet classical adsorbents are not sustainable because they are derived from fossil fuels, and they can induce secondary pollution. Therefore, biological sorbents made of modern biomass are increasingly studied as promising alternatives. Indeed, such biosorbents utilize biological waste that would otherwise pollute water systems, and they promote the circular economy. Here we review biosorbents, magnetic sorbents, and other cost-effective sorbents with emphasis on preparation methods, adsorbents types, adsorption mechanisms, and regeneration of spent adsorbents. Biosorbents are prepared from a wide range of materials, including wood, bacteria, algae, herbaceous materials, agricultural waste, and animal waste. Commonly removed contaminants comprise dyes, heavy metals, radionuclides, pharmaceuticals, and personal care products. Preparation methods include coprecipitation, thermal decomposition, microwave irradiation, chemical reduction, micro-emulsion, and arc discharge. Adsorbents can be classified into activated carbon, biochar, lignocellulosic waste, clays, zeolites, peat, and humic soils. We detail adsorption isotherms and kinetics. Regeneration methods comprise thermal and chemical regeneration and supercritical fluid desorption. We also discuss exhausted adsorbent management and disposal. We found that agro-waste biosorbents can remove up to 68–100% of dyes, while wooden, herbaceous, bacterial, and marine-based biosorbents can remove up to 55–99% of heavy metals. Animal waste-based biosorbents can remove 1–99% of heavy metals. The average removal efficiency of modified biosorbents is around 90–95%, but some treatments, such as cross-linked beads, may negatively affect their efficiency.

show abstract

“…Hydrophobic and hydrophilic modication on the surface of SAs have been used to oil and organic dyes adsorption, respectively. [182][183][184][185][186] For example, Chen et al 187 prepared hydroxyl modied SAs to adsorb Congo red (CR) and Methyl blue (MB) (Fig. 6a).…”

Section: Adsorptionmentioning

confidence: 99%

Research progress and applications of silica-based aerogels – a bibliometric analysis

Zhu

Zhang³

et al. 2022

RSC Adv.

View full text Add to dashboard Cite

show abstract

Investigation of dye removal ability and reusability of green and sustainable silica and carbon-silica hybrid aerogels prepared from paddy waste ash

Cited by 17 publications

References 56 publications

Porous Aerogel Structures as Promising Materials for Photocatalysis, Thermal Insulation Textiles, and Technical Applications: A Review

Porous Aerogel Structures as Promising Materials for Photocatalysis, Thermal Insulation Textiles, and Technical Applications: A Review

Methods to prepare biosorbents and magnetic sorbents for water treatment: a review

Research progress and applications of silica-based aerogels – a bibliometric analysis

Contact Info

Product

Resources

About