Development of green, effective, and cost-efficient perlite supported solid base catalyst and application in condensation reactions

Goyal, Deepti; Priyanka, .; Hada, Renu; Katara, Stuti; Bhatia, Anita; Malpani, Sakshi Kabra

doi:10.1016/j.matpr.2021.10.123

Cited by 5 publications

(3 citation statements)

References 15 publications

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“…Weak bands in the range of 700 cm À1 to 900 cm À1 were attributed to the presence of bending frequencies of Si-O-Si bonds. 39 In this bandgap, new peaks with peaks of 877 cm À1 , 766 cm À1 and 726 cm À1 appeared. The 557 cm À1 was attributed to the Si-O-Al bending vibration.…”

Section: Kırbas ¸883mentioning

confidence: 95%

Effect of perlite on the thermal conductivity, thermal degradation and mechanical properties of epoxy materials

Kirbaş

2022

High Performance Polymers

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In this study, the thermal conductivity, thermal degradation and mechanical properties of the perlite added epoxy materials were investigated. Perlite was added into the epoxy resin (EP) at the rate of 2%, 4%, 6%, 8% and 10% compared to the total mass. For the analysis of these epoxy materials, the thermal conductivity, density, hardness, X-ray diffraction (XRD), FTIR spectra, thermogravimetric analysis (TGA), tensile strength, flexural strength, limit oxygen index (LOI) and vertical burning tests were carried out. With the added perlite (PER10), a decrease of 24.03% occurred in the thermal conductivity coefficient compared to the pure EP material. A maximum decrease of 6.86% was detected in its density. It gained fire retardant feature as it increased from 6.15% to 28.71% in V-0 and carbon residue as inflammability class. Despite the decrease of tensile stress, tensile modulus increased. The maximum increase PER02 was 36.9%. It did not provide any improvement in terms of other mechanical properties.

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Section: Kırbas ¸883mentioning

confidence: 95%

Effect of perlite on the thermal conductivity, thermal degradation and mechanical properties of epoxy materials

Kirbaş

2022

High Performance Polymers

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“…Solid acid catalysts are the most frequently used catalysts to date, while solid base catalysts remain uncommonly addressed, although solid base catalysts are environmentally safe, easily removed from the product, and reusable, yield reduced amounts of by-products and can provide high conversion rates. 54,178 Considerably, chemicals including KOH, NaOH, K 2 CO 3 , Na 2 CO 3 , Ba(OH) 2 and KCl are the most commonly utilized activators for such applications that can lead to well-established porous materials with high BET surfaces. 181–183 The base activation involves the impregnation of lignin in KOH, NaOH, etc .…”

Section: The Value-added Implementations Of Lignin As a Bio-based Cat...mentioning

confidence: 99%

Current approaches, emerging developments and functional prospects for lignin-based catalysts – a review

et al. 2023

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“…Homogeneous and heterogeneous catalysis plays an important role in industrially important organic transformations that produce some significant chemicals used in the petrochemical, pharmaceutical and fine chemical industries [299]. While homogeneous catalysts offer many advantages like high reaction rates, easy accessibility of active sites, and minimal diffusion barriers, separation from the reaction mixture is a tedious task, and, in some cases, it is a challenging process [300]. Heterogeneous catalysis is preferably used in industrial applications because of its easy separation, which usually results in lower operating costs [301].…”

Section: Catalysis Opportunities: Supports For Heterogeneous Catalystsmentioning

confidence: 99%

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

et al. 2021

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Plastics are ubiquitous in our society and are used in many industries, such as packaging, electronics, the automotive industry, and medical and health sectors, and plastic waste is among the types of waste of higher environmental concern. The increase in the amount of plastic waste produced daily has increased environmental problems, such as pollution by micro-plastics, contamination of the food chain, biodiversity degradation and economic losses. The selective and efficient conversion of plastic waste for applications in environmental remediation, such as by obtaining composites, is a strategy of the scientific community for the recovery of plastic waste. The development of polymeric supports for efficient, sustainable, and low-cost heterogeneous catalysts for the treatment of organic/inorganic contaminants is highly desirable yet still a great challenge; this will be the main focus of this work. Common commercial polymers, like polystyrene, polypropylene, polyethylene therephthalate, polyethylene and polyvinyl chloride, are addressed herein, as are their main physicochemical properties, such as molecular mass, degree of crystallinity and others. Additionally, we discuss the environmental and health risks of plastic debris and the main recycling technologies as well as their issues and environmental impact. The use of nanomaterials raises concerns about toxicity and reinforces the need to apply supports; this means that the recycling of plastics in this way may tackle two issues. Finally, we dissert about the advances in turning plastic waste into support for nanocatalysts for environmental remediation, mainly metal and metal oxide nanoparticles.

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Development of green, effective, and cost-efficient perlite supported solid base catalyst and application in condensation reactions

Cited by 5 publications

References 15 publications

Effect of perlite on the thermal conductivity, thermal degradation and mechanical properties of epoxy materials

Effect of perlite on the thermal conductivity, thermal degradation and mechanical properties of epoxy materials

Current approaches, emerging developments and functional prospects for lignin-based catalysts – a review

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

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