Synthesis and characterization of molecularly imprinted composite as a novel adsorbent and competition with non-imprinting composite for removal of dye

Yıldırım, Ayfer; Acay, Hilal; Baran, Ayşe

doi:10.18596/jotcsa.868054

Cited by 3 publications

(1 citation statement)

References 41 publications

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“…employed in these industries are toxic and disadvantage to the water source (1-6) (Table 1). Specifically, anionic dyes contain negative charges instead of cationic dyes with positive charges in an aqueous solution that is due to the presence of carboxyl and/or sulfonate groups (2,5,6). Among them, the anionic dyes are intensely colored, water-soluble, and manifest acidic features inducing to the most challenging (7,8).…”

Section: Introductionmentioning

confidence: 99%

Progresses and expansions of chitosan-graphene oxide hybrid networks utilizing as adsorbents and their organic dye removal performances: A short review

2021

Journal of the Turkish Chemical Society Section A: Chemistry

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Increasing concentration of pollutants has significantly affected the quality of water, especially for organic dyes-contained water/wastewater. This is probably reduced effectively through adsorbing the pollutants onto potential materials-based adsorbents. Chitosan/graphene oxide (CTS/GO) hybrid networks utilizing as adsorbents are attracting considerable interest owing to the available functional groups, which can remove plenty of the organic dyes from water/wastewater. In this review, the progress and expansions of CTS/GO hybrid networks-based adsorbents are summarized and discussed in detail. Following the general introduction and properties of each material system (i.e., CTS, GO and CTS/GO hybrid networks), the CTS/GO hybrid networks-based emerging adsorbents with coupling numerous other support materials (i.e., reduced GO, magnetic iron oxide, polymeric materials, metal-organic frameworks, etc.) are compared and discussed in short, at same time that some common organic dyes used in adsorption studies are also introduced. Besides, adsorption technique and mechanisms (i.e., adsorption kinetics and isotherms) focus on the CTS/GO hybrid networks' role are discussed as well. Although there are still some challenges from the reviewed researches, the CTS/GO hybrid networks-based emerging materials can be considered promising and potential adsorbents. Moreover, this review can provide a clear overview of CTS/GO hybrid networks-based adsorbents in organic dye removal applications to readers.

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Section: Introductionmentioning

confidence: 99%

Progresses and expansions of chitosan-graphene oxide hybrid networks utilizing as adsorbents and their organic dye removal performances: A short review

2021

Journal of the Turkish Chemical Society Section A: Chemistry

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Can CPS better prepare 8th graders for problem-solving in electromagnetism and bridging the gap between high- and low-achievers than IPS?

Guo,

She,

Chen

et al. 2023

Intern. J. Comput.-Support. Collab. Learn

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The individual problem-solving (IPS) and collaborative problem-solving (CPS) have received a lot of attention, yet little research has been conducted to investigate whether CPS and IPS are equally effective in improving students’ understanding of physics concepts, problem-solving abilities, and minimizing achievement gaps. Therefore, the present study developed two types of online electromagnetism problem solving programs with simulation—IPS and CPS—for 8th grade students over five class sessions. Students in the CPS group significantly outperformed those in the IPS group on their performance of physics problem solving test and online problem-solving solution, while IPS and CPS both affected their physics concept test performance to the same degree. The CPS group allocated more time to the online problem-solving solution, evidence-based reasoning, simulation and data reporting than the IPS group. Both CPS and IPS affected high-achievers' problem-solving performance to the same extent. Nonetheless, CPS was more effective in maximizing low-achievers' problem-solving performance and minimizing the discrepancy between high- and low-achievers than IPS, possibly because low-achievers in CPS group requested and received more support from high-achieving students. Regression analysis indicated that students' online problem-solving solution significantly predict their posttest performance in the physics concept test and physics problem-solving test.

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Molecularly Imprinted Polymers Based on Konjac for Selective Caffeine Adsorption in Aqueous Solution

Chaisena

Wattananon

Narakaew

2023

Journal of the Turkish Chemical Society Section A: Chemistry

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A number of caffeine extraction methods have been developed, such as microwave assisted extraction and ultrasonic-assisted extraction. The disadvantages of these methods are low selectivity, inconvenience, and inefficiency. Among the existing technologies, molecularly imprinted polymers (MIPs) are one of the most efficient and economical methods for the removal of caffeine contaminants. In this study, the objective was to prepare MIPs for the removal of complicated samples. The obtained materials were used as a sorbent for the extraction of caffeine from coffee brewed in an espresso. The MIPs were prepared using konjac/acrylic acid as a functional monomer, N, N′-methylenebisacrylamide as a cross-linker, and caffeine as a template. The chemical structures of MIPs were characterized by Fourier transform infrared spectroscopy. MIPs exhibited a higher maximum adsorption capacity (87.72 mg/g). The equilibrium adsorption data fit well with the Langmuir adsorption isotherm models, which confirm the monolayer adsorption behaviour of caffeine molecules on the surfaces of the MIPs samples. According to the experimental results of the adsorption capacity of caffeine from aqueous solution, the MIPs showed a higher percentage removal of caffeine (75.66%). Our findings suggest that MIPs are useful adsorbents for the decaffeination of coffee brewed in an espresso.

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Synthesis and characterization of molecularly imprinted composite as a novel adsorbent and competition with non-imprinting composite for removal of dye

Cited by 3 publications

References 41 publications

Progresses and expansions of chitosan-graphene oxide hybrid networks utilizing as adsorbents and their organic dye removal performances: A short review

Progresses and expansions of chitosan-graphene oxide hybrid networks utilizing as adsorbents and their organic dye removal performances: A short review

Can CPS better prepare 8th graders for problem-solving in electromagnetism and bridging the gap between high- and low-achievers than IPS?

Molecularly Imprinted Polymers Based on Konjac for Selective Caffeine Adsorption in Aqueous Solution

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