Strategies to design modified activated carbon fibers for the decontamination of water and air

Gopinath, Ashitha; Kadirvelu, K.

doi:10.1007/s10311-018-0740-9

Cited by 59 publications

(24 citation statements)

References 205 publications

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“…Activated carbon fiber (ACF) is used to adsorb formaldehyde because of its large specific surface area, abundant micropores, and excellent adsorption capacity (Gopinath and Kadirvelu, 2018;Puziy et al, 2018). However, formaldehyde-adsorbed ACF could cause secondary pollution of the environment.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Lignocellulose-Based Activated Carbon Paper as a Manganese Dioxide Carrier for Adsorption and in-situ Catalytic Degradation of Formaldehyde

Zhang

Lin

et al. 2019

Front. Chem.

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Formaldehyde is a colorless, highly toxic, and flammable gas that is harmful to human health. Recently, many efforts have been devoted to the application of activated carbon to absorb formaldehyde. In this work, lignocellulose-based activated carbon fiber paper (LACFP) loaded with manganese dioxide (MnO 2) was fabricated for the adsorption and in-situ catalytic degradation of formaldehyde. LACFP was prepared by two-stage carbonization and activation of sisal hemp pulp-formed paper and was then impregnated with manganese sulfate (MnSO 4) and potassium permanganate (KMnO 4) solutions; MnO 2 then formed by in situ growth on the LACFP base by calcination. The catalytic performance of MnO 2-loaded LACFP for formaldehyde was then investigated. It was found that the suitable carbonization conditions were elevating the temperature first by raising it at 10 • C/min from room temperature to 280 • C, then at 2 • C/min from 280 to 400 • C, maintaining the temperature at 400 • C for 1 h, and then increasing it quickly from 400 to 700 • C at 15 • C/min. The conditions used for activation were similar to those for carbonization, with the temperature additionally being held at 700 • C for 2 h. The conditions mentioned above were optimized to maintain the fiber structure and shape integrity of the paper, being conducive to loading with catalytically active substances. Regarding the catalytic activity of MnO 2-loaded LACFP, the concentration of formaldehyde decreased by 59 ± 6 ppm and the concentration of CO 2 increased by 75 ± 3 ppm when the reaction proceeded at room temperature for 10 h. The results indicated that MnO 2-loaded LACFP could catalyze formaldehyde into non-toxic substances.

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Section: Introductionmentioning

confidence: 99%

Preparation of Lignocellulose-Based Activated Carbon Paper as a Manganese Dioxide Carrier for Adsorption and in-situ Catalytic Degradation of Formaldehyde

Zhang

Lin

et al. 2019

Front. Chem.

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“…These suggest the potential role of climate change on occurrence and the fate of the virus. Environmental chemistry research on the fate of pollutants in air (Kfoury et al 2016;Yu 2019;Gopinath and Kadirvelu 2018), water (Gopinath and Kadirvelu 2018; Mahmood et al 2012;Rodgers et al 2019;Wen et al 2019) and wastewater (Padervand et al 2020;Simas et al 2019;Villaseñor and Ríos 2018;) is therefore highly relevant to the study of pathogenic microbes. Future detailed investigations about the physiochemical role of environmental parameters of air might therefore address the control of future outbreaks or pandemics with greater efficiency.…”

mentioning

confidence: 99%

Environmental chemistry is most relevant to study coronavirus pandemics

2020

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“…Other modification methods reported in the literature include ultrasonication, electrochemical treatment, mineral oxide impregnation or coating, ball milling, plasma treatment and microwave treatment (Li et al 2020;Akhil et al 2021;Kuppusamy 2019;Wang et al 2018;Mudhoo et al 2019;Gopinath and Kadirvelu 2018). Each of these treatment methods provides unique properties by introducing new physicochemical capabilities which ultimately enhance selective sorption performance.…”

Section: Biochar Engineeringmentioning

confidence: 99%

Industrial biochar systems for atmospheric carbon removal: a review

et al. 2021

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In the context of climate change, there is an urgent need for rapid and efficient methods to capture and sequester carbon from the atmosphere. For instance, production, use and storage of biochar are highly carbon negative, resulting in an estimated sequestration of 0.3–2 Gt CO2 year−1 by 2050. Yet, biochar production requires more knowledge on feedstocks, thermochemical conversion and end applications. Herein, we review the design and development of biochar systems, and we investigate the carbon removal industry. Carbon removal efforts are currently promoted via the voluntary market. The major commercialized technologies for offering atmospheric carbon removal are forestation, direct air carbon capture utilization and storage, soil carbon sequestration, wooden building elements and biochar, with corresponding fees ranging from 10 to 895 GBP (British pounds) per ton CO2. Biochar fees range from 52 to 131 GBP per ton CO2, which indicates that biochar production is a realistic strategy that can be deployed at large scale. Carbon removal services via biochar are currently offered through robust marketplaces that require extensive certification, verification and monitoring, which adds an element of credibility and authenticity. Biochar eligibility is highly dependent on the type of feedstock utilized and processing conditions employed. Process optimization is imperative to produce an end product that meets application-specific requirements, environmental regulations and achieve ultimate stability for carbon sequestration purposes.

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Strategies to design modified activated carbon fibers for the decontamination of water and air

Cited by 59 publications

References 205 publications

Preparation of Lignocellulose-Based Activated Carbon Paper as a Manganese Dioxide Carrier for Adsorption and in-situ Catalytic Degradation of Formaldehyde

Preparation of Lignocellulose-Based Activated Carbon Paper as a Manganese Dioxide Carrier for Adsorption and in-situ Catalytic Degradation of Formaldehyde

Environmental chemistry is most relevant to study coronavirus pandemics

Industrial biochar systems for atmospheric carbon removal: a review

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