Synthesis of activated carbon from peanut shell as dye adsorbents for wastewater treatment

Wu, Huifang; Chen, Ruoya; Du, Haixia; Zhang, Jia; Shi, Lumeng; Yu, Qin; Yue, Lingzhi; Wang, Junping

doi:10.1177/0263617418807856

Cited by 55 publications

(29 citation statements)

References 31 publications

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“…Among them, adsorption has been widespread application due to its simple operation, low operating costs, and high efficiency. Carbon material is a traditional adsorbent material due to its high adsorption capacity, in which activated carbon is the most widely used as adsorbent (Abbas and Harrache, 2019; Huang et al., 2012; Lafi et al., 2019; Streit et al., 2019; Wu et al., 2019). However, most of these carbon materials are microporous structures and more expensive, which limits their application in polymer dyes removal.…”

Section: Introductionmentioning

confidence: 99%

Adsorption performance of basic fuchsin on alkali-activated diatomite

Zhao

Geng

Cai

et al. 2020

Adsorption Science & Technology

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The natural diatomite was treated with NaOH to obtain alkali-activated diatomite. The materials were systematically characterized by X-ray powder diffraction, X-ray fluorescence, Fourier transform infrared spectroscopic, scanning electron microscopy, and N2 adsorption–desorption. Meanwhile, the potential use of alkali-activated diatomite as adsorbent for the removal of basic fuchsin from aqueous solution was assessed by batch experiment. Results indicated that the structure and textural properties of diatomite were obviously changed via alkali activation, and then affecting its adsorption performance. The adsorption capacity of alkali-activated diatomite for basic fuchsin was higher than that of natural diatomite. In the case of alkali-activated diatomite, its adsorption capacity was increased with increasing the activation temperature, and the diatomite activated at 115°C (alkali-activated diatomite-115) exhibited the maximum adsorption capacity. The pseudo-first-order kinetics and the Sips isotherm model were preferable to describe the adsorption process of basic fuchsin on alkali-activated diatomite-115 and the thermodynamic parameters indicated that the adsorption process was endothermic and spontaneous.

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Section: Introductionmentioning

confidence: 99%

Adsorption performance of basic fuchsin on alkali-activated diatomite

Zhao

Geng

Cai

et al. 2020

Adsorption Science & Technology

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“…Alkali and alkaline earth metals, and some acids, are normally used as activating agents. Examples include potassium hydroxide (KOH) (Fu et al 2019;Seo et al 2019;Yang et al 2019), phosphoric acid (H 3 PO 4 ) (Kang et al 2018;Wu et al 2018;Baek et al 2019), potassium carbonate (K 2 CO 3 ) (Zhou et al 2012;Garba et al 2015;Oliveira et al 2018), zinc chloride (ZnCl 2 ) (Vunain et al 2018;Laverde et al 2019;Ma et al 2019) and sodium hydroxide (NaOH) (Laverde et al 2019;Hasanzadeh et al 2020;Zhang et al 2020).…”

Section: Strategies In Chemical Activationmentioning

confidence: 99%

Effects of chemical activating agents on physical properties of activated carbons – a commentary

Amran

Zaini

2020

Water Practice and Technology

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Well-developed surface areas and porous structures that render high adsorption capacity are necessary for pollutant removal from wastewater by activated carbons. Activated carbons from natural resources, and agricultural and industrial waste materials are produced using chemical agents, including KOH, H3PO4, K2CO3, ZnCl2 and NaOH. This study is intended to highlight the effects of those agents on the physical properties of the activated carbons. The operating conditions, i.e., temperature, time and ratio show an interplay towards the physical properties at varying degree. The yield, pore size, mesoporosity and surface area of activated carbons derived using different chemical agents correlate well with the impregnation ratio. Generally, the pore size, mesoporosity and surface area increase, while the yield decreases with increasing ratio (over a given range). Higher ratio and temperature are recommended for KOH, K2CO3 and NaOH activation, to endow activated carbons with greater surface area.

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“…In addition, it was found to increase with solution pH. However, the application of AC as an adsorbent has been extensively studied in wastewater treatment rather than in desalination [386].…”

Section: Mishra and Ramaprabhu [377]mentioning

confidence: 99%

Functional materials in desalination: A review

2019

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This paper reviews various functional materials used in desalination. Desalination of the abundant seawater resource has emerged as a promising technology to meet the current fresh water demands. For improved performance, often functional materials such as photocatalysts, electrocatalysts, photothermal materials, sorbents, antibacterial materials and magnetic materials are utilized in thermal, membranebased and other desalination technologies. With an aim to provide an insight on the existing research on functional materials and the purpose behind using such in desalination, this review collates different research studies of various functional properties and the subsequent materials utilized for those properties. New generation materials such as carbon nanotubes (CNTs) and graphene form a major part, where they exhibit multiple functionalities with improved water transport properties, and thus have been deemed as very attractive enhancers to the desalination technology. Nevertheless, most of the functional materials, such as nano-TiO2, nano-zeolites, graphene, CNTs and magnetic nanoparticles suffer from several limitations such as specialized synthesis techniques, agglomeration, leaching and environmental and health concerns. This review focuses on such challenges and suggests improvements for enhanced incorporation of these in the desalination technology. Lastly, emerging new technologies, advanced fabrication methods and novel functional hybrid materials are reviewed to equip the readers with the latest research trends. Thus, a comprehensive review is essential which will provide current and future researchers an insight on the importance and significance of utilizing functional materials in various desalination technologies.

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Synthesis of activated carbon from peanut shell as dye adsorbents for wastewater treatment

Cited by 55 publications

References 31 publications

Adsorption performance of basic fuchsin on alkali-activated diatomite

Adsorption performance of basic fuchsin on alkali-activated diatomite

Effects of chemical activating agents on physical properties of activated carbons – a commentary

Functional materials in desalination: A review

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