1
|
Yildiz H, Gülşen H, Şahin Ö, Baytar O, Kutluay S. Novel adsorbent for malachite green from okra stalks waste: synthesis, kinetics and equilibrium studies. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2024; 26:369-381. [PMID: 37551855 DOI: 10.1080/15226514.2023.2243621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
In this study, malachite green (MG) removal was performed with activated carbon synthesized from okra stalks by microwave assisted chemical activation method. In the synthesis of activated carbon, the effects of gas in the microwave, activation, and impregnation rate were investigated. The synthesized activated carbon characterization was investigated using BET, FT-IR, and SEM analyses. The activated carbon surface area achieved was 759.453 m2 g-1. In addition, the surface area of activated carbon synthesized using the conventional method was17.766 m2 g-1. The effect of the initial solution concentration on MG adsorption was investigated. According to the kinetic and equilibrium data, it was found that the adsorption process best fitted the pseudo-second order kinetic model and the Langmuir isotherm. According to the equilibrium data, the maximum adsorption capacity (qmax) of the monolayer was 119.05 mg g-1. In addition, MG adsorption was investigated by the experimental design method. The adsorption capacity at the determined optimum conditions was 99.63 mg g-1. All results show that activated carbon synthesized from waste biomass by combining the conventional method with microwave-assisted impregnation is a cheap and environmentally friendly adsorbent.
Collapse
Affiliation(s)
- Hakan Yildiz
- Department of Environmental Technologies, Harran University, Sanlıurfa, Türkiye
| | - Hakki Gülşen
- Department of Environmental Engineering, Harran University, Sanlıurfa, Türkiye
| | - Ömer Şahin
- Department of Chemical Engineering, Istanbul Technical University, İstanbul, Türkiye
| | - Orhan Baytar
- Department of Chemical Engineering, Siirt University, Siirt, Türkiye
| | - Sinan Kutluay
- Department of Chemical Engineering, Istanbul Technical University, İstanbul, Türkiye
| |
Collapse
|
2
|
Gürses A, Güneş K, Şahin E, Açıkyıldız M. Investigation of the removal kinetics, thermodynamics and adsorption mechanism of anionic textile dye, Remazol Red RB, with powder pumice, a sustainable adsorbent from waste water. Front Chem 2023; 11:1156577. [PMID: 37332895 PMCID: PMC10272435 DOI: 10.3389/fchem.2023.1156577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 05/24/2023] [Indexed: 06/20/2023] Open
Abstract
Excessive growth and abnormal use of dyes and water in the textile industry cause serious environmental problems, especially with excessive pollution of water bodies. Adsorption is an attractive, feasible, low-cost, highly efficient and sustainable technique in terms of green chemistry for the removal of pollutants from water. This study aims to investigate the removal kinetics, thermodynamics and adsorption mechanism of Remazol Red RB, which was chosen as a representative anionic reactive dye, from synthetic wastewater using powdered pumice, taking into account various experimental parameters such as initial dye concentration, adsorption time, temperature and pH. Moreover, to support the proposed adsorption mechanism, before and after adsorption of the samples, the Fourier transform infrared spectrophotometer (FTIR) spectra, X-ray powder diffraction (XRD) diffractograms and High resolution transmission electron microscopy (HRTEM) images were also taken and used. The results show that powder pumice can be an efficient adsorbent for anionic dye removal with a relatively high adsorption capacity of 38.90 mg/g, and it is very effective in 30-60 min in mild conditions. The experimental data showed a high agreement with the pseudo-second-order kinetic model and the Freundlich adsorption isotherm equation. In addition, thermodynamically, the process exhibited exothermic nature and standard isosteric enthalpy and entropy changes of -4.93 kJ/mol and 16.11 J/mol. K were calculated. It was determined that the adsorption mechanism was predominantly based on T-shaped pi-pi interactions and had physical characteristics.
Collapse
Affiliation(s)
- Ahmet Gürses
- Department of Chemistry, K.K. Education Faculty, Atatürk University, Erzurum, Türkiye
| | - Kübra Güneş
- Department of Chemistry, K.K. Education Faculty, Atatürk University, Erzurum, Türkiye
| | - Elif Şahin
- Department of Chemistry, K.K. Education Faculty, Atatürk University, Erzurum, Türkiye
| | - Metin Açıkyıldız
- Department of Science Education, K.M.R. Education Faculty, Kilis 7 Aralık University, Kilis, Türkiye
| |
Collapse
|
3
|
Alswat AA, Ashmali AM, Alqasmi TM, Alhassani HR, Alshorifi FT. Role of nanohybrid NiO–Fe3O4 in enhancing the adsorptive performance of activated carbon synthesized from Yemeni-Khat leave in removal of Pb (II) and Hg (II) from aquatic systems. Heliyon 2023; 9:e14301. [PMID: 36967866 PMCID: PMC10034445 DOI: 10.1016/j.heliyon.2023.e14301] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 02/24/2023] [Accepted: 02/28/2023] [Indexed: 03/07/2023] Open
Abstract
Over years, existence of toxic chemical heavy metal in aquatic systems has motivated more research studies toward the preparation of effective stable solid adsorbents for the removal of toxic chemical pollutants. Therefore, in the current research study, activated carbon adsorbent (AC) was synthesized from Yemeni khat (catha edulis) leaves which are considered as waste accumulated on waste disposal areas in Yemen. KOH (2.0 N) was used as a chemical activator to produce the AC material which was subsequently heated at 400 °C. A simple co-precipitation method was used to chemically modify AC with varying weight ratios of NiO-Fe3O4 NPs (5, 15, and 25 wt %). The modified AC was used to remove toxic Pb(II) and Hg(II) ions from aquatic systems. Numerous techniques, which included x-ray diffraction (XRD), Fourier transforms infrared (FTIR), field emission scanning electron microscope (FE-SEM), and N2 adsorption/desorption isotherms, were used to confirm the morphology of AC and 5, 15, and 25 wt% NiO-Fe3O4/AC samples. The study findings demonstrated that, NiO-Fe3O4 nanoparticles improved the adsorption efficiency for toxic Pb(II) and Hg (II) ions. The AC adsorbent attained maximum removal efficiencies of 88.95% and 87.56% for Pb (II) and Hg (II) ions, respectively. In contrast, 15-NF/AC NC sample successfully attained the highest removal efficiencies of 100% for pb(II) and 99.71% for Hg(II). According to the experimental findings, the prepared NF/AC adsorbents were effective and they can be used as inexpensive and stable solid nanoadsorbents in water treatment.
Collapse
|
4
|
Biorefining of green macroalgal (Ulva sp.) biomass and its application in the adsorptive recovery of rare earth elements (REEs). Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
|
5
|
Zhang T, Xiong W, Zhang H, Li J. Activated carbon prepared by co-pyrolysis of waste tobacco straw and waste LDPE mulch film: characterization and application for methylene blue removal. RSC Adv 2022; 12:34165-34175. [PMID: 36545622 PMCID: PMC9709785 DOI: 10.1039/d2ra06153h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/21/2022] [Indexed: 12/05/2022] Open
Abstract
Efficient and inexpensive sorbents play a key role in removing organic pollutants from water bodies. In this study, a series of high surface area activated carbons (ACs) with excellent adsorption performance was prepared by co-pyrolysis of the waste tobacco straw and the waste low-density polyethylene (LDPE) mulch film. Using the maximum adsorption capacity of methylene blue (MB) as an indicator, the variables such as LDPE content, K2CO3 to raw material ratio, activation time, and activation temperature were optimized. The optimal synthesis conditions were as follows: LDPE content of 40%, K2CO3/raw material ratio of 1 : 2, activation temperature of 900 °C, and activation time of 100 min. The maximum adsorption capacity of MB was up to 849.91 mg g-1. The results of scanning electron microscopy (SEM), X-ray powder diffraction (XRD), Raman, X-ray photoelectron spectroscopy (XPS), and BET showed that the moderate addition of LDPE was beneficial to the pyrolysis of the waste tobacco straw, bringing about the enrichment of surface groups (-OH, -COOH) and increasing its specific surface area and pore volume (up to 1566.7 m2 g-1 and 0.996 cm3 g-1, respectively). The equilibrium data of MB adsorption by the composite activated carbon (PAC) was consistent with the Langmuir isotherm, while the adsorption kinetics were better described by a pseudo-second-order kinetic model. This work reveals the feasibility of LDPE mulch film and waste tobacco straw as potential and inexpensive precursors for preparing high surface area AC adsorbents.
Collapse
Affiliation(s)
- Tianliang Zhang
- Sichuan University School of Chemical EngineeringChengdu610000China
| | - Wei Xiong
- Sichuan Tobacco Quality Supervision and Testing StationChengdu 610000China
| | - Haiyan Zhang
- Sichuan Tobacco Quality Supervision and Testing StationChengdu 610000China
| | - Jun Li
- Sichuan University School of Chemical EngineeringChengdu610000China
| |
Collapse
|
6
|
Gebreegziabher TB, Gebremariam SK, Wang S, Nam H. Synthesis of sawdust-based porous carbon using Box–Behnken design for NO2 adsorption: modeling, optimization, and study of interaction effects. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02559-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
7
|
Hoang AT, Kumar S, Lichtfouse E, Cheng CK, Varma RS, Senthilkumar N, Phong Nguyen PQ, Nguyen XP. Remediation of heavy metal polluted waters using activated carbon from lignocellulosic biomass: An update of recent trends. CHEMOSPHERE 2022; 302:134825. [PMID: 35526681 DOI: 10.1016/j.chemosphere.2022.134825] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 04/25/2022] [Accepted: 04/29/2022] [Indexed: 06/14/2023]
Abstract
The use of a cheap and effective adsorption approach based on biomass-activated carbon (AC) to remediate heavy metal contamination is clearly desirable for developing countries that are economically disadvantaged yet have abundant biomass. Therefore, this review provides an update of recent works utilizing biomass waste-AC to adsorb commonly-encountered adsorbates like Cr, Pb, Cu, Cd, Hg, and As. Various biomass wastes were employed in synthesizing AC via two-steps processing; oxygen-free carbonization followed by activation. In recent works related to the activation step, the microwave technique is growing in popularity compared to the more conventional physical/chemical activation method because the microwave technique can ensure a more uniform energy distribution in the solid adsorbent, resulting in enhanced surface area. Nonetheless, chemical activation is still generally preferred for its ease of operation, lower cost, and shorter preparation time. Several mechanisms related to heavy metal adsorption on biomass wastes-AC were also discussed in detail, such as (i) - physical adsorption/deposition of metals, (ii) - ion-exchange between protonated oxygen-containing functional groups (-OH, -COOH) and divalent metal cations (M2+), (iii) - electrostatic interaction between oppositely-charged ions, (iv) - surface complexation between functional groups (-OH, O2-, -CO-NH-, and -COOH) and heavy metal ions/complexes, and (v) - precipitation/co-precipitation technique. Additionally, key parameters affecting the adsorption performance were scrutinized. In general, this review offers a comprehensive insight into the production of AC from lignocellulosic biomass and its application in treating heavy metals-polluted water, showing that biomass-originated AC could bring great benefits to the environment, economy, and sustainability.
Collapse
Affiliation(s)
- Anh Tuan Hoang
- Institute of Engineering, HUTECH University, Ho Chi Minh City, Viet Nam.
| | - Sunil Kumar
- CSIR-NEERI, Nehru Marg, Nagpur, 440 020, India
| | - Eric Lichtfouse
- Aix-Marseille University, CNRS, IRD, INRA, CEREGE, Aix-en-Provence, 13100, France.
| | - Chin Kui Cheng
- Department of Chemical Engineering, College of Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates; Center for Catalysis and Separation (CeCaS), Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - Rajender S Varma
- Sustainable Technology Division, National Risk Management Research Laboratory, U.S. Environmental Protection Agency, 26 West M.L.K. Drive, MS 443, Cincinnati, OH, 45268, United States
| | - N Senthilkumar
- Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, 602105, India
| | - Phuoc Quy Phong Nguyen
- PATET Research Group, Ho Chi Minh City University of Transport, Ho Chi Minh City, Viet Nam
| | - Xuan Phuong Nguyen
- PATET Research Group, Ho Chi Minh City University of Transport, Ho Chi Minh City, Viet Nam.
| |
Collapse
|
8
|
Wang L, Li X, Zhou J, Ma H, Wang H. Tailoring texture properties in porous carbon for enhanced capacitive performance: towards investigating the CO2 activation behaviors of carbonaceous matter. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
9
|
Saikia S, Sinharoy A, Lens PN. Adsorptive removal of gallium from aqueous solution onto biogenic elemental tellurium nanoparticles. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120462] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
10
|
Sreńscek-Nazzal J, Kamińska A, Miądlicki P, Wróblewska A, Kiełbasa K, Wróbel RJ, Serafin J, Michalkiewicz B. Activated Carbon Modification towards Efficient Catalyst for High Value-Added Products Synthesis from Alpha-Pinene. MATERIALS 2021; 14:ma14247811. [PMID: 34947405 PMCID: PMC8703386 DOI: 10.3390/ma14247811] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/03/2021] [Accepted: 12/15/2021] [Indexed: 01/29/2023]
Abstract
DT0-activated carbons modified with HCl and HNO3 acids, which were used for the first time in the catalytic process of alpha-pinene isomerization, are presented in this study. The carbon materials DT0, DT0_HCl, DT0_HNO3, and DT0_HCl_HNO3 were examined with the following methods: XRF, SEM, EDX, XPS, FT-IR, XRD, and N2 adsorption at −196 °C. It was shown that DT0_HCl_HNO3-activated carbon was the most active material in the alpha-pinene isomerization process. Detailed studies of alpha-pinene isomerization were carried out over this carbon by changing the reaction parameters such as time (5–180 min) and temperature (60–175 °C). The 100% conversion of alpha-pinene was achieved at the temperature of 160 °C and catalyst content of 5 wt% after 3 h over the DT0_HCl_HNO3 catalyst. Camphene and limonene were the main products of the alpha-pinene isomerization reaction.
Collapse
Affiliation(s)
- Joanna Sreńscek-Nazzal
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (A.K.); (P.M.); (K.K.); (R.J.W.); (B.M.)
- Correspondence: (J.S.-N.); (A.W.)
| | - Adrianna Kamińska
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (A.K.); (P.M.); (K.K.); (R.J.W.); (B.M.)
| | - Piotr Miądlicki
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (A.K.); (P.M.); (K.K.); (R.J.W.); (B.M.)
| | - Agnieszka Wróblewska
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (A.K.); (P.M.); (K.K.); (R.J.W.); (B.M.)
- Correspondence: (J.S.-N.); (A.W.)
| | - Karolina Kiełbasa
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (A.K.); (P.M.); (K.K.); (R.J.W.); (B.M.)
| | - Rafał Jan Wróbel
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (A.K.); (P.M.); (K.K.); (R.J.W.); (B.M.)
| | - Jarosław Serafin
- Barcelona Research Center in Multiscale Science and Engineering, Department of Chemical Engineering, Institute of Energy Technologies, Technical University of Catalonia, Eduard Maristany 16, 08019 Barcelona, Spain;
| | - Beata Michalkiewicz
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (A.K.); (P.M.); (K.K.); (R.J.W.); (B.M.)
| |
Collapse
|
11
|
Amran F, Ahmad Zaini MA. Correlations between pore textures of activated carbons and Langmuir constants – case studies on methylene blue and congo red adsorption. TOXIN REV 2020. [DOI: 10.1080/15569543.2020.1848871] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Fadina Amran
- Centre of Lipids Engineering and Applied Research (CLEAR), Ibnu-Sina Institute for Scientific and Industrial Research (ISI-SIR), Universiti Teknologi Malaysia, Johor, Malaysia
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor, Malaysia
| | - Muhammad Abbas Ahmad Zaini
- Centre of Lipids Engineering and Applied Research (CLEAR), Ibnu-Sina Institute for Scientific and Industrial Research (ISI-SIR), Universiti Teknologi Malaysia, Johor, Malaysia
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor, Malaysia
| |
Collapse
|
12
|
Abstract
In recent years, the removal of dyes from wastewater has attracted considerable attention due to their harmful effects to ecosystem and human health. Adsorption as a facile and effective technique has been widely used to eliminate a large variety of dyes from aqueous solutions. Activated carbon is the most preferred adsorbent to treat wastewater but its use is limited because of high cost. Therefore, several low-cost and natural materials and wastes have been used as precursors for the preparation of alternative adsorbents. Among them, sawdust as an abundant and low-cost by-product has been explored as adsorbent for the removal of dyes from wastewater. This review focuses on the various sawdust used as a precursor for the preparation of activated carbons. Extensive literature information about sawdust, its compositions, activation methods, its efficiency for dyes removal, and environmental conditions effects has been reviewed. The applicability of various adsorption kinetic models and adsorption isotherm models for dye removal by sawdust-derived activated carbons has been also reported. Finally, this paper highlights the use of sawdust as base material for various composites and mixture which can be used as granular activated carbon.
Collapse
|
13
|
Jiang H, Yang Y, Lin Z, Zhao B, Wang J, Xie J, Zhang A. Preparation of a novel bio-adsorbent of sodium alginate grafted polyacrylamide/graphene oxide hydrogel for the adsorption of heavy metal ion. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 744:140653. [PMID: 32693272 DOI: 10.1016/j.scitotenv.2020.140653] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/22/2020] [Accepted: 06/29/2020] [Indexed: 05/27/2023]
Abstract
A novel bio-adsorbent named SA-PAM/GO hydrogel composites was synthesized through free radical polymerization. The structure and performance were characterized and analyzed by BET, SEM-EDS, FTIR and TGA. After modification, the BET surface area increased more than tripled, which was consistent with SEM results. Under optimal conditions, the maximum adsorption capacity of Cu2+ and Pb2+ were 68.76 mg/g and 240.69 mg/g, respectively. In addition, the research of kinetics and isotherms displayed that the pseudo-second-order kinetic model and the Langmuir isotherm model fitted the data well. After further research, the different adsorption mechanism including physical adsorption, chemical adsorption and electrostatic interactions were discussed. The chemical adsorption accompanying the ion exchange process was confirmed as the staple adsorption mechanism. Furthermore, the adsorbent still maintained good adsorption capacity after 5 cycles of adsorption-regeneration. Therefore, the SA-PAM/GO hydrogel composites have potential to remove the heavy metal ions from water body effectively.
Collapse
Affiliation(s)
- Huabin Jiang
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, PR China
| | - Yuru Yang
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, PR China
| | - Zongkun Lin
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, PR China
| | - Binchan Zhao
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, PR China
| | - Jing Wang
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, PR China
| | - Jun Xie
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, PR China
| | - Aiping Zhang
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, PR China.
| |
Collapse
|
14
|
Tejedor J, Cóndor V, Almeida-Naranjo CE, Guerrero VH, Villamar CA. Performance of wood chips/peanut shells biofilters used to remove organic matter from domestic wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 738:139589. [PMID: 32531583 DOI: 10.1016/j.scitotenv.2020.139589] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 03/30/2020] [Accepted: 05/19/2020] [Indexed: 06/11/2023]
Abstract
Biofiltration is one of the main alternatives developed to improve wastewater quality and increase its recyclability. Support materials are extremely important when using this technology since they impact the cost of the treatment. In this work, we study the use of wood chips/peanut shell as support medium within biofilters incorporating microorganisms (BM), plants and microorganisms (BPM), earthworms and microorganisms (BEM) and all organisms (hybrid biofilters, HB). These typologies were evaluated to remove organic matter from synthetic domestic wastewater. For this purpose, twelve biofilters were operated in parallel under three different nominal hydraulic rates (0.5, 1 and 1.5 m3 m-2 day-1). Previously, support materials were individually characterized and acute/chronic toxicity tests on plants (Eleocharis palustris (L.) Roem. & Schult.) and earthworms (Eisenia foetida Savigny) were driven. Results showed that both materials have good adsorbent properties, providing adequate environmental conditions for biofiltration. Moreover, non toxicological response was reported when a 25 v/v % peanut shell fraction was selected. With this fraction used in every biofilter studied, the average hydraulic conductivity was between 321 and 502 mm h-1, reaching organic matter removal efficiencies close to 80% (measured as COD), and between 40 and 63% (measured as VS). Higher efficiencies, attributed to the longer contact times, and lower clogging were observed at lower hydraulic rates. The incorporation of earthworms and plants improved the solids removal and reduced clogging. The statistical analysis indicated that the results obtained for biofilters operating at 0.5 m3 m-2 day-1 showed significant differences (p < 0.05) with respect to the other rates. Moreover, BEM were the ones that presented significant differences. As a conclusion, low-cost organic materials (wood chip/peanut shell mix) can be successfully used as support medium, since they provide adequate environmental conditions for plants and earthworms, improving the operation and maintaining contaminant (organic matter) removal within biofiltration typologies.
Collapse
Affiliation(s)
- J Tejedor
- Departamento de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, P.O. Box 17-01-2759, Quito, Ecuador
| | - V Cóndor
- Departamento de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, P.O. Box 17-01-2759, Quito, Ecuador
| | - C E Almeida-Naranjo
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería Mecánica, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, 170413 Quito, Ecuador
| | - V H Guerrero
- Departamento de Materiales, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, 170413 Quito, Ecuador
| | - C A Villamar
- Departamento de Ingeniería en Obras Civiles, Facultad de Ingeniería, Universidad de Santiago de Chile, Av. Ecuador 3659, P.O. Box: 9170124, Estación Central, Santiago, Chile.
| |
Collapse
|
15
|
Emara MM, Farag RS, Mubarak MF, Ali SK. Synthesis of core–shell activated carbon/CaO composite from Ficus Nitida leaves, as an efficient adsorbent for removal of methylene blue. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/s41204-020-00088-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
16
|
Abstract
Batch adsorption experiments have been conducted to investigate the removal of methyl orange from aqueous solution by an activated carbon prepared from prickly pear seed cake by phosphoric acid activation. The adsorption process has been described by using kinetic and isotherm models. The kinetic of adsorption was examined by pseudo-first-order, pseudo-second-order, and intraparticle diffusion models. Adsorption isotherm was modeled using Langmuir, Freundlich, Temkin and Dubinin–Radushkevich isotherms. The adsorption process of methyl orange was well explained by the pseudo-second-order model and Freundlich isotherm. Also, pseudo-n-order model has been applied to estimate the order of adsorption kinetic and it was found equal to 2 which confirm the good accuracy of the pseudo-second order. Moreover, Dubinin–Radushkevich isotherm reveals that the adsorption of methyl orange onto activated carbon was a physisorption process in nature. The adsorption capacity of activated carbon was found to be 336.12 mg/g at temperature 20°C andpH∼7. These results demonstrated that the prickly pear seed cake is a suitable precursor for the preparation of appropriate activated carbon for dyes removal from aqueous solution.
Collapse
|
17
|
Yek PNY, Peng W, Wong CC, Liew RK, Ho YL, Wan Mahari WA, Azwar E, Yuan TQ, Tabatabaei M, Aghbashlo M, Sonne C, Lam SS. Engineered biochar via microwave CO 2 and steam pyrolysis to treat carcinogenic Congo red dye. JOURNAL OF HAZARDOUS MATERIALS 2020; 395:122636. [PMID: 32298946 DOI: 10.1016/j.jhazmat.2020.122636] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 03/27/2020] [Accepted: 04/01/2020] [Indexed: 05/22/2023]
Abstract
We developed an innovative single-step pyrolysis approach that combines microwave heating and activation by CO2 or steam to transform orange peel waste (OPW) into microwave activated biochar (MAB). This involves carbonization and activation simultaneously under an inert environment. Using CO2 demonstrates dual functions in this approach, acting as purging gas to provide an inert environment for pyrolysis while activating highly porous MAB. This approach demonstrates rapid heating rate (15-120 °C/min), higher temperature (> 800 °C) and shorter process time (15 min) compared to conventional method using furnace (> 1 h). The MAB shows higher mass yield (31-44 wt %), high content of fixed carbon (58.6-61.2 wt %), Brunauer Emmett Teller (BET) surface area (158.5-305.1 m2/g), low ratio of H/C (0.3) and O/C (0.2). Activation with CO2 produces more micropores than using steam that generates more mesopores. Steam-activated MAB records a higher adsorption efficiency (136 mg/g) compared to CO2 activation (91 mg/g), achieving 89-93 % removal of Congo Red dye. The microwave pyrolysis coupled with steam or CO2 activation thereby represents a promising approach to transform fruit-peel waste to microwave-activated biochar that remove hazardous dye.
Collapse
Affiliation(s)
- Peter Nai Yuh Yek
- Henan Province Engineering Research Center For Biomass Value-Added Products, School Of Forestry, Henan Agricultural University, Zhengzhou, 450002, China; Pyrolysis Technology Research Group, Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; University College of Technology Sarawak, Department of Engineering, 96000, Sibu, Sarawak, Malaysia
| | - Wanxi Peng
- Henan Province Engineering Research Center For Biomass Value-Added Products, School Of Forestry, Henan Agricultural University, Zhengzhou, 450002, China
| | - Chee Chung Wong
- University College of Technology Sarawak, Department of Engineering, 96000, Sibu, Sarawak, Malaysia
| | - Rock Keey Liew
- NV WESTERN PLT, No. 208B, Jalan Macalister, Georgetown, 10400, Pulau Pinang, Malaysia
| | - Yee Ling Ho
- Pyrolysis Technology Research Group, Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Wan Adibah Wan Mahari
- Pyrolysis Technology Research Group, Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Elfina Azwar
- Pyrolysis Technology Research Group, Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Tong Qi Yuan
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, No.35 Tsinghua East Road Haidian District, Beijing, 100083, China
| | - Meisam Tabatabaei
- Faculty of Plantation and Agrotechnology, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia; Department of Microbial Biotechnology, Agricultural Biotechnology Research Institute of Iran (ABRII), AREEO, Karaj, Iran
| | - Mortaza Aghbashlo
- Department of Mechanical Engineering of Agricultural Machinery, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Christian Sonne
- Aarhus University, Department of Bioscience, Arctic Research Centre (ARC), Frederiksborgvej 399, PO Box 358, DK-4000, Roskilde, Denmark; Henan Province Engineering Research Center For Biomass Value-Added Products, School Of Forestry, Henan Agricultural University, Zhengzhou, 450002, China
| | - Su Shiung Lam
- Pyrolysis Technology Research Group, Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Henan Province Engineering Research Center For Biomass Value-Added Products, School Of Forestry, Henan Agricultural University, Zhengzhou, 450002, China; Anhui Juke Graphene Technology Co., Ltd., Bozhou, 233600, China.
| |
Collapse
|
18
|
Tran TH, Le AH, Pham TH, Nguyen DT, Chang SW, Chung WJ, Nguyen DD. Adsorption isotherms and kinetic modeling of methylene blue dye onto a carbonaceous hydrochar adsorbent derived from coffee husk waste. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 725:138325. [PMID: 32464744 DOI: 10.1016/j.scitotenv.2020.138325] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 02/26/2020] [Accepted: 03/28/2020] [Indexed: 06/11/2023]
Abstract
In this study, activated carbon in the form of carbonaceous hydrochar adsorbents with highly functionalized surface-active sites were produced from coffee husk waste via hydrothermal carbonization under low-temperature conditions (180 °C) and subsequent chemical activation. Thereafter, the hydrochars were characterized using diverse analytical techniques, and batch experiments of methylene blue (MB) adsorption were performed under various operating conditions. The results indicated that the activated hydrochar (AH) had a larger specific surface area (862.2 m2 g-1) compared to that of its carbonaceous precursor (33.7 m2 g-1). The maximum MB sorption capacity of the hydrochar activated with potassium hydroxide was extremely high (415.8 mg g-1 at 30 °C). In addition, adsorption isotherms and kinetics were studied using experimental data fitting to further understand and describe the dynamic equilibrium, dynamic kinetics, and mechanism of MB adsorption onto the prepared hydrochars. As compared to the Freundlich isotherm model, the Langmuir isotherm model provided a better fit with the experimental data exhibiting a maximum monolayer adsorption capacity of 418.78 mg g-1. The linear pseudo-second-order kinetic model was found to be suitable for describing the adsorptive kinetics of the hydrochar. The results demonstrated the immense potential of coffee husk waste to produce activated carbon as an alternative green hydrochar that can be applied to dye removal from wastewater as well as improvement of waste management.
Collapse
Affiliation(s)
- Thi Hien Tran
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi City, Vietnam; Institute of Environmental Science, Engineering and Management, Industrial University of Ho Chi Minh City, 12 Nguyen Van Bao, Go Vap District, Ho Chi Minh City, Vietnam
| | - Anh Hoang Le
- Faculty of Environment, University of Science, Ho Chi Minh City, Vietnam; Vietnam National University, Ho Chi Minh City, Vietnam
| | - Thien Huu Pham
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi City, Vietnam; Institute of Applied Materials Science, Vietnam Academy of Science and Technology, No 1A TL 29, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam
| | - Dinh Thanh Nguyen
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi City, Vietnam; Institute of Applied Materials Science, Vietnam Academy of Science and Technology, No 1A TL 29, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam.
| | - Soon Woong Chang
- Department of Environmental Energy Engineering, Kyonggi University, Republic of Korea
| | - Woo Jin Chung
- Department of Environmental Energy Engineering, Kyonggi University, Republic of Korea
| | - D Duc Nguyen
- Institution of Research and Development, Duy Tan University, Da Nang 550000, Vietnam.
| |
Collapse
|
19
|
Adsorption Thermodynamic and Kinetic Studies of Methyl Orange onto Sugar Scum Powder as a Low-Cost Inorganic Adsorbent. J CHEM-NY 2020. [DOI: 10.1155/2020/9165874] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In the present study, batch adsorption experiments were carried out to investigate the removal of methyl orange (MO) from aqueous solution using sugar scum powder as an effective inorganic adsorbent which is a cheap precursor and abundant. The characteristics of this material were determined using XRD, SEM/EDX, and FTIR. The adsorption performance of sugar scum powder was evaluated using MO as the model adsorbate. Effects of various parameters such as initial dye concentration, contact time, and adsorbent dose were studied. The adsorption process can be best described by the pseudo-second-order kinetic and Langmuir adsorption isotherm models. Maximum monolayer adsorption capacity for MO removal was found to be 15.24 mg/g at temperature 22°C and pH 7.2. Moreover, thermodynamic parameters suggested that the adsorption of MO onto sugar scum powder was a spontaneous and exothermic process. The results demonstrated that sugar scum is a suitable precursor for the preparation of efficient adsorbent for dye removal from wastewater.
Collapse
|
20
|
Iwanow M, Gärtner T, Sieber V, König B. Activated carbon as catalyst support: precursors, preparation, modification and characterization. Beilstein J Org Chem 2020; 16:1188-1202. [PMID: 32550932 PMCID: PMC7277711 DOI: 10.3762/bjoc.16.104] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 05/20/2020] [Indexed: 11/23/2022] Open
Abstract
The preparation of activated carbon materials is discussed along selected examples of precursor materials, of available production and modification methods and possible characterization techniques. We evaluate the preparation methods for activated carbon materials with respect to its use as catalyst support and identify important parameters for metal loading. The considered carbon sources include coal, wood, agricultural wastes or biomass as well as ionic liquids, deep eutectic solvents or precursor solutions. The preparation of the activated carbon usually involves pre-treatment steps followed by physical or chemical activation and application dependent modification. In addition, highly porous materials can also be produced by salt templating or ultrasonic spray pyrolysis as well as by microwave irradiation. The resulting activated carbon materials are characterized by a variety of techniques such as SEM, FTIR, nitrogen adsorption, Boehm titrations, adsorption of phenol, methylene blue and iodine, TPD, CHNS/O elemental analysis, EDX, XPS, XRD and TGA.
Collapse
Affiliation(s)
- Melanie Iwanow
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Bio-, Electro- and Chemocatalysis BioCat, Straubing Branch, Schulgasse 11a, 94315 Straubing, Germany.,Department of Chemistry and Pharmacy, University of Regensburg, Universitätsstraße 31, 93040 Regensburg, Germany
| | - Tobias Gärtner
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Bio-, Electro- and Chemocatalysis BioCat, Straubing Branch, Schulgasse 11a, 94315 Straubing, Germany
| | - Volker Sieber
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Bio-, Electro- and Chemocatalysis BioCat, Straubing Branch, Schulgasse 11a, 94315 Straubing, Germany.,Technical University of Munich, Campus Straubing for Biotechnology and Sustainability, Schulgasse 16, 94315 Straubing, Germany
| | - Burkhard König
- Department of Chemistry and Pharmacy, University of Regensburg, Universitätsstraße 31, 93040 Regensburg, Germany
| |
Collapse
|
21
|
Şentürk İ, Yıldız MR. Highly efficient removal from aqueous solution by adsorption of Maxilon Red GRL dye using activated pine sawdust. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-020-0526-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
22
|
Wu Z, Sun Z, Liu P, Li Q, Yang R, Yang X. Competitive adsorption of naphthalene and phenanthrene on walnut shell based activated carbon and the verification via theoretical calculation. RSC Adv 2020; 10:10703-10714. [PMID: 35492953 PMCID: PMC9050373 DOI: 10.1039/c9ra09447d] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 03/06/2020] [Indexed: 01/30/2023] Open
Abstract
Walnut shell based activated carbon (WAC) was prepared via microwave-assisted KOH activation.
Collapse
Affiliation(s)
- Zhansheng Wu
- School of Environmental and Chemical Engineering
- Xi'an Polytechnic University
- Xi'an 710048
- P. R. China
- School of Chemistry and Chemical Engineering
| | - Zhonghai Sun
- Department of Environmental Operation Technology
- Muyuan Foods Co. Ltd
- Nanyang 473000
- P. R. China
| | - Pengyun Liu
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi 832003
- China
| | - Qing Li
- School of Environmental and Chemical Engineering
- Xi'an Polytechnic University
- Xi'an 710048
- P. R. China
| | - Renpeng Yang
- School of Environmental and Chemical Engineering
- Xi'an Polytechnic University
- Xi'an 710048
- P. R. China
| | - Xia Yang
- School of Environmental and Chemical Engineering
- Xi'an Polytechnic University
- Xi'an 710048
- P. R. China
| |
Collapse
|
23
|
A Review of Chemicals to Produce Activated Carbon from Agricultural Waste Biomass. SUSTAINABILITY 2019. [DOI: 10.3390/su11226204] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The choice of activating agent for the thermochemical production of high-grade activated carbon (AC) from agricultural residues and wastes, such as feedstock, requires innovative methods. Overcoming energy losses, and using the best techniques to minimise secondary contamination and improve adsorptivity, are critical. Here, we review the importance and influence of activating agents on agricultural waste: how they react and compare conventional and microwave processes. In particular, adsorbent pore characteristics, surface chemistry interactions and production modes were compared with traditional methods. It was concluded that there are no best activating agents; rather, each agent reacts uniquely with a precursor, and the optimum choice depends on the target adsorbent. Natural chemicals can also be as effective as inorganic activating agents, and offer the advantages that they are usually safe, and readily available. The use of a microwave, as an innovative pyrolysis approach, can enhance the activation process within a duration of 1–4 h and temperature of 500–1200 °C, after which the yield and efficiency decline rapidly due to molecular breakdown. This study also examines the biomass milling process requirements; the influence of the dielectric properties, along with the effect of washing; and experimental setup challenges. The microwave setup system, biomass feed rate, product delivery, inert gas flow rate, reactor design and recovery lines are all important factors in the microwave activation process, and contribute to the overall efficiency of AC preparation. However, a major issue is a lack of large-scale industrial demonstration units for microwave technology.
Collapse
|
24
|
Zhang Y, Li X. Preparation of Al2O3 hollow microsphere via calcining carbon template and its adsorption application. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.07.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
25
|
Activated Carbon from Prickly Pear Seed Cake: Optimization of Preparation Conditions Using Experimental Design and Its Application in Dye Removal. INTERNATIONAL JOURNAL OF CHEMICAL ENGINEERING 2019. [DOI: 10.1155/2019/8621951] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In the present study, the experimental design method was used to optimize the preparation conditions of an activated carbon from prickly pear seed cake by phosphoric acid activation. The parameters studied include impregnation ratio, carbonization temperature, and carbonization time. The optimal conditions for the preparation of the activated carbon with high adsorption capacity for methylene blue were identified to be an impregnation ratio of 2.9, carbonization temperature of 541°C, and carbonization time of 88 min. The obtained activated carbon was characterized by SEM/EDX, FTIR, pHpzc, and its capacity to adsorb methylene blue. FTIR analysis and pHPZC showed the acidic character of the activated carbon surface. The adsorption capacity of the optimal activated carbon was found to be 260 mg·g−1 for methylene blue. The adsorption equilibrium of methylene blue was well explained by the pseudo-second-order model and Freundlich isotherm. Furthermore, the performance of the produced activated carbon was examined by the methyl orange removal.
Collapse
|
26
|
Wang S, Zhao M, Zhou M, Zhao Y, Li YC, Gao B, Feng K, Yin W, Ok YS, Wang X. Biomass facilitated phase transformation of natural hematite at high temperatures and sorption of Cd 2+ and Cu 2. ENVIRONMENT INTERNATIONAL 2019; 124:473-481. [PMID: 30684805 DOI: 10.1016/j.envint.2019.01.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 01/02/2019] [Accepted: 01/03/2019] [Indexed: 06/09/2023]
Abstract
Phase changes of natural hematite are often practiced to improve heavy metal removal and magnetism for easy recycling. In this work, pinewood biomass (PB) and natural hematite (H) admixtures were pyrolyzed at 300, 450 and 600 °C under N2 environment to prepare HBC nanocomposites (HBC300, HBC450 and HBC600). The X-ray diffraction (XRD) confirmed the reductive transformation of hematite (crystallite size ≈ 47 nm) into magnetite (25 nm) and further to wustite (25 nm) and zerovalent iron (48 nm). The Langmuir isotherms showed that the maximum sorption capacities of HBC300, HBC450, and HBC600 were 173, 138, and 130 mmol kg-1 for Cd2+, and 359, 172, and 197 mmol kg-1 for Cu2+, respectively. The higher pH up to 5 increased sorption of both Cd2+ and Cu2+, whereas the higher ionic strength (0.05-0.4 M) decreased Cd2+ sorption. Sorption of Cd2+ and Cu2+ by HBC300 was accompanied by one order of magnitude greater cation release than HBC450 and HBC600. In a binary system, Cd2+ sorption was depressed by over four times in presence of Cu2+. Overall, ion exchange was more pronounced for HBC300, and Cu2+ was more favorably retained by specific sorption than Cd2+. The greater magnetism of HBC nanoparticles favors separation from aqueous solutions.
Collapse
Affiliation(s)
- Shengsen Wang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangdong, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, China
| | - Mingyue Zhao
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, China
| | - Min Zhou
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, China
| | - Yiting Zhao
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, China
| | - Yuncong C Li
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, China; Soil and Water Sciences Department, Tropical Research and Education Center, IFAS, University of Florida, Homestead, FL 33031, United States of America
| | - Bin Gao
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, United States of America
| | - Ke Feng
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, China
| | - Weiqin Yin
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, China
| | - Yong Sik Ok
- Korea Biochar Research Center & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea.
| | - Xiaozhi Wang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, China.
| |
Collapse
|
27
|
Preparation of Corn Stalk-walnut Shell Mix-based Activated Carbon and Its Adsorption of Malachite Green. Chem Res Chin Univ 2018. [DOI: 10.1007/s40242-018-8045-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
28
|
Namal OO, Kalipci E. Adsorption kinetics of methylene blue using alkali and microwave-modified apricot stones. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1541469] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Osman Onder Namal
- Department of Environmental Engineering, Nevsehir Haci Bektas Veli University, Nevsehir, Turkey
| | - Erkan Kalipci
- Department of Environmental Engineering, Nevsehir Haci Bektas Veli University, Nevsehir, Turkey
| |
Collapse
|
29
|
Khasri A, Ahmad MA. Adsorption of basic and reactive dyes from aqueous solution onto Intsia bijuga sawdust-based activated carbon: batch and column study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:31508-31519. [PMID: 30203351 DOI: 10.1007/s11356-018-3046-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 08/23/2018] [Indexed: 06/08/2023]
Abstract
The adsorption behavior of basic, methylene blue (MB), and reactive, remazol brilliant violet 5R (RBV), dyes from aqueous solution onto Intsia bijuga sawdust-based activated carbon (IBSAC) was executed via batch and column studies. The produced activated carbon was characterized through Brunauer-Emmett-Teller (BET) surface area and pore structural analysis, proximate and ultimate, scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FTIR). Batch studies were performed to investigate the effects of contact time, initial concentration, and solution pH. The equilibrium data for both MB and RBV adsorption better fits Langmuir model with maximum adsorption capacity of 434.78 and 212.77 mg/g, respectively. Kinetic studies for both MB and RBV dyes showed that the adsorption process followed a pseudo-second-order and intraparticle diffusion kinetic models. For column mode, the breakthrough curves were plotted by varying the flow rate, bed height, and initial concentration and the breakthrough data were best correlated with the Yoon-Nelson model compared to Thomas and Adams-Bohart model. The adsorption activity of IBSAC shows good stability even after four consecutive cycles.
Collapse
Affiliation(s)
- Azduwin Khasri
- Department of Chemical Engineering Technology, Faculty of Engineering Technology, Kampus Unicity Sungai Chuchuh, Universiti Malaysia Perlis, 02100, Padang Besar, Perlis, Malaysia
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300, Nibong Tebal, Pulau Pinang, Malaysia
| | - Mohd Azmier Ahmad
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300, Nibong Tebal, Pulau Pinang, Malaysia.
| |
Collapse
|
30
|
Liu P, Wu Z, Sun Z, Ye J. Comparison study of naphthalene adsorption on activated carbons prepared from different raws. KOREAN J CHEM ENG 2018. [DOI: 10.1007/s11814-018-0124-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
31
|
Adelopo AO, Haris PI, Alo B, Huddersman K, Jenkins RO. Conversion of solid waste to activated carbon to improve landfill sustainability. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2018; 36:708-718. [PMID: 30058952 DOI: 10.1177/0734242x18788940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Heterogeneous composite wastes from landfills were evaluated as precursors for the generation of activated carbon (AC). A single-step chemical activation process was applied involving irradiation with microwave energy and impregnation with KOH. The average percentage yield of AC from active landfill precursor was higher than that from closed landfill for all depths sampled. Increase in impregnation ratio and irradiation power decreased the average percentage yield for both landfill precursors (active: 38.1 to 33.1%; closed: 42.1 to 33.3%). The optimum pH range for adsorption of methylene blue was pH 6-7, while adsorption increased with increase in temperature over the range 30 to 50°C. Carbonyl and hydroxyl groups were the major functional groups on the surface of AC. The properties of the AC are potentially suitable for the removal of cationic dyes and pollutants. AC generated from the landfill composite was comparable to that from other biomass being managed through AC generation. This is the first report to demonstrate the possible reuse of landfill composite as AC. The reuse option of landfill composite could provide a means of sustainable management of landfilled municipal waste.
Collapse
Affiliation(s)
- A O Adelopo
- 1 Department of Works and Physical Planning, University of Lagos, Nigeria
| | - P I Haris
- 2 Faculty of Health and Life Sciences, De Montfort University, UK
| | - B Alo
- 3 Department of Chemistry, University of Lagos, Nigeria
| | - K Huddersman
- 2 Faculty of Health and Life Sciences, De Montfort University, UK
| | - R O Jenkins
- 2 Faculty of Health and Life Sciences, De Montfort University, UK
| |
Collapse
|
32
|
Yang K, Lou Z, Fu R, Zhou J, Xu J, Baig SA, Xu X. Multiwalled carbon nanotubes incorporated with or without amino groups for aqueous Pb(II) removal: Comparison and mechanism study. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.03.082] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
33
|
Khasri A, Bello OS, Ahmad MA. Mesoporous activated carbon from Pentace species sawdust via microwave-induced KOH activation: optimization and methylene blue adsorption. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3452-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
34
|
Li D, Li J, Ren B, Li T, Ma X. Synthesis and Characterization of Wooden Magnetic Activated Carbon Fibers with Hierarchical Pore Structures. Polymers (Basel) 2018; 10:E435. [PMID: 30966470 PMCID: PMC6415245 DOI: 10.3390/polym10040435] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 04/07/2018] [Accepted: 04/11/2018] [Indexed: 11/16/2022] Open
Abstract
Wooden magnetic activated carbon fibers (WMACFs) with hierarchical pore structures were obtained by adding magnetic iron oxide (Fe₃O₄) nanoparticles into the liquefied wood. The structures and properties of WMACFs were analyzed by scanning electronmicroscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), N₂ adsorption, and vibrating sample magnetometer (VSM). The results showed that WMACFs had high Brunauer-Emmett-Teller (BET) surface area (1578 m²/g) and total pore volume (0.929 cm³/g), of which 45% was the contribution of small mesopores of 2⁻3 nm. It is believed that Fe₃O₄ nanoparticles play an important role in the formation of hierarchical pores. With the Fe₃O₄ content increasing, the yield rate of WMACFs decreased, and the Fe₃O₄ crystal plane diffraction peaks and characteristic adsorption peaks were obviously observed. At the same time, it was also found that WMACFs had favorable magnetic properties when the Fe₃O₄ content was above 1.5%. As a result, WMACFs could be a promising candidate for high efficiency, low cost, and convenient separation for the magnetic field.
Collapse
Affiliation(s)
- Dongna Li
- Ministry of Agriculture Key Laboratory of Biology and Genetic Resource Utilization of Rubber Tree/State Key Laboratory Breeding Base of Cultivation & Physiology for Tropical Crops, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, China.
- College of Packaging & Printing Engineering, Tianjin University of Science & Technology, Tianjin 300222, China.
| | - Jianing Li
- Ministry of Agriculture Key Laboratory of Biology and Genetic Resource Utilization of Rubber Tree/State Key Laboratory Breeding Base of Cultivation & Physiology for Tropical Crops, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, China.
| | - Biyun Ren
- College of Packaging & Printing Engineering, Tianjin University of Science & Technology, Tianjin 300222, China.
| | - Tongtong Li
- Ministry of Agriculture Key Laboratory of Biology and Genetic Resource Utilization of Rubber Tree/State Key Laboratory Breeding Base of Cultivation & Physiology for Tropical Crops, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, China.
| | - Xiaojun Ma
- College of Packaging & Printing Engineering, Tianjin University of Science & Technology, Tianjin 300222, China.
| |
Collapse
|
35
|
Kaya M, Şahin Ö, Saka C. Preparation and TG/DTG, FT-IR, SEM, BET Surface Area, Iodine Number and Methylene Blue Number Analysis of Activated Carbon from Pistachio Shells by Chemical Activation. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2018. [DOI: 10.1515/ijcre-2017-0060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractIn this study, low cost activated carbon was prepared from the pistachio shell by chemical activation with zinc chloride (ZnCl2). The prepared activated carbon was characterized by thermogravimetry (TG) and differential thermal gravimetry (DTG), infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and Brunauer, Emmett and Teller (BET) surface area analyses. Results showed that the activation temperature and impregnation ratio have significant effect on the iodine number of the prepared activated carbon. The optimum conditions for preparing the activated carbon having the highest surface area were found to be an activation temperature of 700 °C, soaking time of 24 h and ZnCl2/ pistachio shell ratio of 50 %. The results showed that the BET surface area, total pore volume, iodine number and methylene blue (MB) number of activated carbon prepared under the optimum conditions were 1108 m2/g, 0.39 cm3/g, 1051 mg/g, 98.48 mg/g, respectively.
Collapse
|
36
|
Zhao L, Yang F, Jiang Q, Zhu M, Jiang Z, Tang Y, Zhang Y. Characterization of modified biochars prepared at low pyrolysis temperature as an efficient adsorbent for atrazine removal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:1405-1417. [PMID: 29090437 DOI: 10.1007/s11356-017-0492-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 10/16/2017] [Indexed: 06/07/2023]
Abstract
In this study, biochars (BC, ZnBC, and PBC) produced from wheat straw at relatively lower pyrolysis are successfully fabricated using different pretreatment techniques (without and with ZnCl2 or H3PO4). The specific surface area (SSA), elemental analysis, and Fourier transform infrared spectra (FTIR) are used to analyze physicochemical properties of unmodified and modified biochars. ZnBC and PBC show higher specific surface area and more micropore structure than pure BC. Kinetic models (pseudo-first order, pseudo-second order, and intra-particle diffusion) as well as isotherm models (Langmuir and Freundlich) are applied to analyze adsorption behavior. Adsorption on biochars can be better fitted by the pseudo-second-order and intra-particle diffusion models, indicating that micropores and mesopores play important roles on adsorption process and chemisorption is dominant. The adsorption process is also affected by physical and chemical adsorption. In conclusion, biochar is a low-cost, effective, and environment-friendly adsorbent implicating in the environment for pesticide removal. Graphical abstract.
Collapse
Affiliation(s)
- Lulu Zhao
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Fan Yang
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
- College of Science, Northeast Agricultural University, Harbin, 150030, China
| | - Qun Jiang
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Moran Zhu
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Zhao Jiang
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Yi Tang
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Ying Zhang
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China.
| |
Collapse
|
37
|
Adsorption of acid blue 29 and methylene blue on mesoporous K2CO3-activated olive pomace boiler ash. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.09.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
38
|
Marrakchi F, Bouaziz M, Hameed B. Activated carbon–clay composite as an effective adsorbent from the spent bleaching sorbent of olive pomace oil: Process optimization and adsorption of acid blue 29 and methylene blue. Chem Eng Res Des 2017. [DOI: 10.1016/j.cherd.2017.10.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
39
|
Roles of Impregnation Ratio of K2CO3 and NaOH in Chemical Activation of Palm Kernel Shell. JOURNAL OF APPLIED SCIENCE & PROCESS ENGINEERING 2017. [DOI: 10.33736/jaspe.436.2017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The present work was aimed to evaluate the effectiveness of two activating agents, namely potassium carbonate (K2CO3) and sodium hydroxide (NaOH) in the chemical activation of palm kernel shell (PKS). The adsorbents were prepared by dried impregnation at different solid mass ratios of activating agent to precursor, followed by thermal treatment at 500°C for 2 h. The adsorbents were characterized for specific surface area, carbon content, ash content and surface functional groups. Results show that the specific surface of K2CO3-activated samples are in the range of 5.3 to 53 m2/g, while that of NaOH-activated samples are between 145 and 458 m2/g. The removal of methylene blue is in accordance with the development of surface area of adsorbents, with the maximum capacity between 7.8 and 69 mg/g, and fitted well with the Langmuir isotherm. The findings conclude that, under the thermal conditions studied, NaOH is better than K2CO3 in the chemical activation of PKS.
Collapse
|
40
|
|
41
|
Ma W, Chang Y, Han G, Xiao Y, Fu D, Chang Y. Capacitive Properties of the Binder-Free Electrode Prepared from Carbon Derived from Cotton and Reduced Graphene Oxide. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201700398] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Wenhui Ma
- Institute of Molecular Science, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province; Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Shanxi University; Taiyuan Shanxi 030006 China
| | - Yunzhen Chang
- Institute of Molecular Science, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province; Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Shanxi University; Taiyuan Shanxi 030006 China
| | - Gaoyi Han
- Institute of Molecular Science, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province; Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Shanxi University; Taiyuan Shanxi 030006 China
| | - Yaoming Xiao
- Institute of Molecular Science, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province; Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Shanxi University; Taiyuan Shanxi 030006 China
| | - Dongying Fu
- Institute of Crystalline Material, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province; Shanxi University; Taiyuan Shanxi 030006 China
| | - Yahui Chang
- Institute of Molecular Science, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province; Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Shanxi University; Taiyuan Shanxi 030006 China
| |
Collapse
|
42
|
Alahabadi A, Moussavi G. Preparation, characterization and atrazine adsorption potential of mesoporous carbonate-induced activated biochar (CAB) from Calligonum Comosum biomass: Parametric experiments and kinetics, equilibrium and thermodynamic modeling. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.06.116] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
43
|
Liu X, Sun Y, Liu J, Sun C, Liu H, Xue Q, Smith E, Snape C. Potassium and Zeolitic Structure Modified Ultra-microporous Adsorbent Materials from a Renewable Feedstock with Favorable Surface Chemistry for CO 2 Capture. ACS APPLIED MATERIALS & INTERFACES 2017; 9:26826-26839. [PMID: 28696096 DOI: 10.1021/acsami.7b06665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Novel hierarchically structured microporous biocarbons with exceptionally high capacities for CO2 capture have been synthesized from the abundant agricultural waste of rice husk (RH), using a facile methodology that effectively integrated carbonization, activation, and potassium intercalation into a one-step process. Textural characterization demonstrates that the synthesized biocarbons exhibit exceedingly high ultra-microporosity accounting for up to 95% of total porosity mainly as a result of the naturally occurring silicon compounds within the RH molecular framework structures. With a modest surface area of up to 1035 m2/g and a total pore volume of 0.43 cm3/g, the best performing RH carbon has shown exceptionally high and fully reversible CO2 uptake capacity of 2.0 mmol/g at 25 °C and a CO2 partial pressure of 0.15 bar, which represents one of the highest uptakes ever reported for both carbon and MOF materials usually prepared from using cost-prohibitive precursor materials with cumbersome methodologies. It has been found that up to 50% of the total CO2 uptake is attributable to the unique surface chemistry of the RH carbons, which appears to be dominated by the enhanced formation of extra-framework potassium cations owing to the exceedingly high levels of ultra-microporosity and the presence of zeolitic structures incorporated within the carbon matrices. Characterizations by EDX element mapping, XPS, and heat of adsorption measurements confirm the existence of a range of zeolitic structures, which essentially transforms the RH carbons into a kind of zeolite-carbon nanocomposite material with strong surface affinity for CO2.
Collapse
Affiliation(s)
- Xin Liu
- Faculty of Engineering, University of Nottingham , Nottingham NG7 2TU, U.K
| | - Yuan Sun
- Faculty of Engineering, University of Nottingham , Nottingham NG7 2TU, U.K
| | - Jingjing Liu
- Faculty of Engineering, University of Nottingham , Nottingham NG7 2TU, U.K
| | - Chenggong Sun
- Faculty of Engineering, University of Nottingham , Nottingham NG7 2TU, U.K
| | - Hao Liu
- Faculty of Engineering, University of Nottingham , Nottingham NG7 2TU, U.K
| | - Qian Xue
- Faculty of Engineering, University of Nottingham , Nottingham NG7 2TU, U.K
| | - Emily Smith
- School of Chemistry, Faculty of Science, University of Nottingham , Nottingham NG7 2RD, U.K
| | - Colin Snape
- Faculty of Engineering, University of Nottingham , Nottingham NG7 2TU, U.K
| |
Collapse
|
44
|
Enhanced adsorption of atrazine on a coal-based activated carbon modified with sodium dodecyl benzene sulfonate under microwave heating. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.04.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
45
|
Kwiatkowski M, Hameed BH. An evaluation of the reliability of the characterization of the porous structure of activated carbons based on incomplete nitrogen adsorption isotherms. J Mol Model 2017; 23:238. [PMID: 28735499 DOI: 10.1007/s00894-017-3402-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 06/27/2017] [Indexed: 11/28/2022]
Abstract
The paper presents the results of research devoted to reliability evaluation of the analysis of results of the porous structure of activated carbons based on incomplete nitrogen adsorption isotherms using the BET, t-plot, and NLDFT methods, as well as the LBET method comprising the unique numerical fast multivariant procedure of adsorption system identification. The research involved the application of the nitrogen adsorption isotherms obtained for five samples of activated carbons produced from waste materials of organic origin by way of chemical activation with potassium hydroxide, sodium hydroxide, and potassium carbonate with the use of microwave heating. The analyses performed pointed to a good correlation between the results obtained using the BET, t-plot, NLDFT, and LBET methods. Moreover, the parameters of the porous structure determined using these methods based on incomplete adsorption isotherms of nitrogen are in fact as reliable as these methods allow.
Collapse
Affiliation(s)
- Mirosław Kwiatkowski
- Faculty of Energy and Fuels, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059, Krakow, Poland.
| | - Bassim H Hameed
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia
| |
Collapse
|
46
|
Wool Carpet Dye Adsorption on Nanoporous Carbon Materials Derived from Agro-Product. C — JOURNAL OF CARBON RESEARCH 2017. [DOI: 10.3390/c3020012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
|
47
|
An analysis of the effect of the additional activation process on the formation of the porous structure and pore size distribution of the commercial activated carbon WG-12. ADSORPTION 2017. [DOI: 10.1007/s10450-017-9867-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
48
|
Thue PS, Lima EC, Sieliechi JM, Saucier C, Dias SL, Vaghetti JC, Rodembusch FS, Pavan FA. Effects of first-row transition metals and impregnation ratios on the physicochemical properties of microwave-assisted activated carbons from wood biomass. J Colloid Interface Sci 2017; 486:163-175. [DOI: 10.1016/j.jcis.2016.09.070] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 09/27/2016] [Accepted: 09/27/2016] [Indexed: 10/20/2022]
|
49
|
Abstract
Abstract
The objective of this work is to evaluate the removal of methylene blue dye by bio-polishing sludge-based adsorbents. The adsorbents were characterized according to the specific surface area, pH upon the treatment and surface functional groups. The adsorption of dye was carried out at room temperature, and the adsorption data were analyzed using the isotherm and kinetics models. The bio-polishing sludge is rich in ash content, and the presence of surface functional groups varied with the treatment strategies. The specific surface area of adsorbents is between 7.25 and 20.8 m2/g. Results show that the maximum removal of methylene blue by sludge adsorbents was observed to have the following order: untreated sludge (SR) > zinc chloride-treated (SZ) > microwave-dried (SW) = potassium carbonate-treated (SK) > acid-washed (SH). The maximum adsorption capacities for SR and SZ as predicted by the Langmuir model are 170 and 135 mg/g, respectively. Although SR demonstrates a higher maximum removal than SZ, the latter exhibits greater removal intensity and rate constant even at high dye concentration. The bio-polishing sludge is a promising adsorbent for dye wastewater treatment.
Collapse
|
50
|
Alias N, Zaini M, Kamaruddin M, You K. Dielectric properties of potassium carbonate-impregnated cempedak peel for microwave-assisted activation. ASIA-PAC J CHEM ENG 2016. [DOI: 10.1002/apj.2062] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- N. Alias
- Centre of Lipids Engineering and Applied Research (CLEAR), Ibnu-Sina Institute for Scientific and Industrial Research (ISI-SIR); Universiti Teknologi Malaysia; 81310 UTM Johor Bahru Johor Malaysia
| | - M.A.A. Zaini
- Centre of Lipids Engineering and Applied Research (CLEAR), Ibnu-Sina Institute for Scientific and Industrial Research (ISI-SIR); Universiti Teknologi Malaysia; 81310 UTM Johor Bahru Johor Malaysia
- Faculty of Chemical & Energy Engineering; Universiti Teknologi Malaysia; 81310 UTM Johor Bahru Johor Malaysia
| | - M.J. Kamaruddin
- Faculty of Chemical & Energy Engineering; Universiti Teknologi Malaysia; 81310 UTM Johor Bahru Johor Malaysia
| | - K.Y. You
- Faculty of Electrical Engineering; Universiti Teknologi Malaysia; 81310 UTM Johor Bahru Johor Malaysia
| |
Collapse
|