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Kaur P, Kumar S, Rani J, Babu JN, Mittal S. Comparison of surface adsorption efficacies of eco-sustainable agro/animal biomass-derived activated carbon for the removal of rhodamine B and hexavalent chromium. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:52371-52390. [PMID: 39150669 DOI: 10.1007/s11356-024-34686-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 08/07/2024] [Indexed: 08/17/2024]
Abstract
Effective management and remediation strategies are crucial to minimize the impacts of both organic and inorganic contaminants on environmental quality and human health. This study investigates a novel approach utilizing cotton shell activated carbon (CSAC), rice husk activated carbon (RHAC), and wasp hive activated carbon (WHAC), produced through alkali treatment and carbonization under N2 atmosphere at 600 °C. The adsorption capacities of biomass-derived mesoporous activated carbons (CSAC, RHAC, WHAC) alongside macroporous commercial activated carbons (CAC) were evaluated for removing rhodamine B (Rh B) and hexavalent chromium (Cr6+). The CSAC exhibits remarkable adsorption efficiency (255.4 mg.g-1) for Cr(VI) removal, while RHAC demonstrates superior efficacy (174.2 mg.g-1) for Rh B adsorption. Investigating various optimal parameters including initial pH (pH 3 for Cr and pH 7 for Rh B), catalyst dosage (200 mg.L-1), and initial concentration (20 mg.L-1), the Redlich-Peterson isotherm model is applied to reveal a hybrid adsorption mechanism encompassing monolayer (chemisorption) and multilayer (van der Waals adsorption) processes. Kinetic analysis highlights the pseudo-second-order and Elovich models as the most suitable, suggesting physiochemisorption mechanisms. Thermodynamic analysis indicates the endothermic nature of the adsorption process, with increased randomness at the solid-solution interface. Isosteric heat investigations using Clausius-Clapeyron, Arrhenius, and Eyring equations reveal a heterogeneous surface nature across all activated carbons. Further confirmation of Rh B and Cr(VI) adsorption onto activated carbons is provided through FTIR, FESEM, and EDAX analysis. This study highlights the innovation and promise of utilizing biomass-derived activated carbons for effective pollutant removal.
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Affiliation(s)
- Parminder Kaur
- Department of Chemistry, Akal University, Talwandi Sabo, Bathinda, 151302, Punjab, India
| | - Sandeep Kumar
- Department of Chemistry, Akal University, Talwandi Sabo, Bathinda, 151302, Punjab, India.
| | - Jyoti Rani
- Department of Chemistry, Akal University, Talwandi Sabo, Bathinda, 151302, Punjab, India
| | - JNagendra Babu
- Department of Chemistry, School of Basic and Applied Science, Central University of Punjab, Bathinda, 151001, Punjab, India
| | - Sunil Mittal
- Department of Environment Science and Technology, Central University of Punjab, Bathinda, 151001, Punjab, India
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Ismail UM, Vohra MS, Onaizi SA. Adsorptive removal of heavy metals from aqueous solutions: Progress of adsorbents development and their effectiveness. ENVIRONMENTAL RESEARCH 2024; 251:118562. [PMID: 38447605 DOI: 10.1016/j.envres.2024.118562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/11/2024] [Accepted: 02/25/2024] [Indexed: 03/08/2024]
Abstract
Increased levels of heavy metals (HMs) in aquatic environments poses serious health and ecological concerns. Hence, several approaches have been proposed to eliminate/reduce the levels of HMs before the discharge/reuse of HMs-contaminated waters. Adsorption is one of the most attractive processes for water decontamination; however, the efficiency of this process greatly depends on the choice of adsorbent. Therefore, the key aim of this article is to review the progress in the development and application of different classes of conventional and emerging adsorbents for the abatement of HMs from contaminated waters. Adsorbents that are based on activated carbon, natural materials, microbial, clay minerals, layered double hydroxides (LDHs), nano-zerovalent iron (nZVI), graphene, carbon nanotubes (CNTs), metal organic frameworks (MOFs), and zeolitic imidazolate frameworks (ZIFs) are critically reviewed, with more emphasis on the last four adsorbents and their nanocomposites since they have the potential to significantly boost the HMs removal efficiency from contaminated waters. Furthermore, the optimal process conditions to achieve efficient performance are discussed. Additionally, adsorption isotherm, kinetics, thermodynamics, mechanisms, and effects of varying adsorption process parameters have been introduced. Moreover, heavy metal removal driven by other processes such as oxidation, reduction, and precipitation that might concurrently occur in parallel with adsorption have been reviewed. The application of adsorption for the treatment of real wastewater has been also reviewed. Finally, challenges, limitations and potential areas for improvements in the adsorptive removal of HMs from contaminated waters are identified and discussed. Thus, this article serves as a comprehensive reference for the recent developments in the field of adsorptive removal of heavy metals from wastewater. The proposed future research work at the end of this review could help in addressing some of the key limitations facing this technology, and create a platform for boosting the efficiency of the adsorptive removal of heavy metals.
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Affiliation(s)
- Usman M Ismail
- Department of Civil and Environmental Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
| | - Muhammad S Vohra
- Department of Civil and Environmental Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia; Interdisciplinary Research Center for Construction and Building Materials, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Sagheer A Onaizi
- Department of Chemical Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia; Interdisciplinary Research Center for Hydrogen and Energy Storage, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
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3
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Sun H, Jin J, Sun Y, Zuo F, Feng R, Wang F. Preparation of microbial agent immobilized composites for Cr(VI) removal from wastewater. ENVIRONMENTAL TECHNOLOGY 2024:1-13. [PMID: 38429873 DOI: 10.1080/09593330.2024.2323030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 02/18/2024] [Indexed: 03/03/2024]
Abstract
Because of its extreme toxicity and health risks, hexavalent chromium [Cr(VI)] has been identified as a major environmental contaminant. Bioreduction is considered as one of effective techniques for cleaning up Cr(VI)-contaminated sites, but the remediation efficiency needs to be enhanced. Here, a novel immobilized microbial agent was produced by immobilizing Bacillus cereus ZY-2009 with sodium alginate (SA) using polyvinyl alcohol (PVA) and activated carbon (AC). To evaluate the decrease of Cr(VI) by immobilized bacterial agents, batch tests were conducted with varying immobilization conditions, immobilization carriers, and dosages of medication. The removal of Cr(VI) by the agent prepared by the composite immobilization method was better than that by the adsorption and encapsulation methods. The optimal preparation conditions were the fraction of magnetic PVA was 5.00%, the fraction of SA was 4.00%, the fraction of CaCl2 was 4.00%, and the calcification time was 12 h. The experimental results indicated that PVA/SA/AC agents accelerated the reduction rate of Cr(VI). The removal rate of Cr(VI) by immobilized cells (90.5%) under ideal conditions was substantially higher than that of free cells (11.0%). This novel agent had a large specific surface area and a rich pore structure, accounting for its high reduction rate. The results suggest that the PVA/SA/AC immobilized Bacillus cereus ZY-2009 agent has great potential to remove Cr(VI) from wastewater treatment systems.
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Affiliation(s)
- Haihan Sun
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, People's Republic of China
| | - Jianyong Jin
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, People's Republic of China
| | - Yuhuan Sun
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, People's Republic of China
| | - Fang Zuo
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, People's Republic of China
| | - Ruiqing Feng
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, People's Republic of China
| | - Fayuan Wang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, People's Republic of China
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4
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Borisut P, Tangsathitkulchai C, Nuchitprasittichai A. Dynamic of CO 2 adsorption in a fixed bed of microporous and mesoporous activated carbon impregnated with sodium hydroxide and the application of response surface methodology (RSM) for determining optimal adsorption conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:13833-13855. [PMID: 38267644 DOI: 10.1007/s11356-024-32013-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/10/2024] [Indexed: 01/26/2024]
Abstract
Microporous and mesoporous activated carbon produced from longan-seed biomass were impregnated with NaOH and used to capture CO2 from a simulated flue gas in a fixed-bed column. The process variables that were studied included types of activated carbon as characterized by the volume ratio of micropores and mesopores (Vmic/Vmes), adsorption temperature, NaOH loading, gas feed rate and the adsorbent amount. All five process variables affected the two important breakthrough parameters, namely the breakthrough time (tB) and CO2 adsorption capacity at breakthrough time (qB), with different trends and degrees. However, it was only the NaOH loading that showed a characteristic of an optimum loading that provided the maximum of the breakthrough parameters. It was found that an approximate 45% increase in the adsorbed amount of CO2 could be achieved with the activated carbon impregnated with around 1 weight % NaOH solution as compared to the case of the non-impregnated carbon. The response surface methodology (RSM) was applied to develop the correlations for both tB and qB and the maximum predicted qB of 33.58 mg/g was derived at the NaOH loading of 76.5 mg/g carbon, Vmic/Vmes of 2.83, adsorption temperature of 20°C, gas feed rate of 156 kg/m2-h and adsorbent amount of 51 kg/m2 of column cross-section area. The Klinkenberg's breakthrough model was able to describe the CO2 breakthrough curves reasonably well for all the tested conditions. The analysis of the two model parameters, the affinity constant (K) and the effective pore diffusivity (De), revealed that the optimum Vmic/Vmes that provided the maximum K value was around 2.90, corresponding to the activated carbon that contains 74% and 26% by volume of micropores and mesopores, respectively. The proper volume ratio of micropores and mesopores along with alkali addition into activated carbon can be effectively used for maximizing CO2 adsorption in a fixed-bed adsorption system.
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Affiliation(s)
- Prapatsorn Borisut
- School of Chemical Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.
| | - Chaiyot Tangsathitkulchai
- School of Chemical Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Aroonsri Nuchitprasittichai
- School of Chemical Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
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Wang W, Wang H, Luoyang Y, Zhang G, Gao X, Li J, Li X, He M. Nitric Acid-Treated Blue Coke-Based Activated Carbon's Structural Characteristics and Its Application in Hexavalent Chromium-Containing Wastewater Treatment. Molecules 2023; 28:7986. [PMID: 38138476 PMCID: PMC10745564 DOI: 10.3390/molecules28247986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/30/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
This study primarily focused on the efficient transformation of low-priced blue coke powder into a high-capacity adsorbent and aimed to address the pollution issue of hexavalent chromium (Cr (VI))-laden wastewater and to facilitate the effective utilization of blue coke powder. A two-step method was utilized to fabricate a blue coke-based nitric acid-modified material (LCN), and the impact of nitric acid modification on the material's structure and its efficacy in treating Cr (VI)-contaminated wastewater was evaluated. Our experimental results illustrated that, under identical conditions, LCN exhibited superior performance for Cr (VI) treatment compared to the method employing only potassium hydroxide (LCK). The specific surface area and pore volume of LCN were 1.39 and 1.36 times greater than those of LCK, respectively. Further chemical composition analysis revealed that the functional group structure on the LCN surface was more conducive to Cr (VI) adsorption. The highest amount of Cr (VI) that LCN could bind was measured at 181.962 mg/g at 318 K. This was mostly due to chemisorption, which is dominated by redox reactions. The Cr (VI) removal process by LCN was identified to be a spontaneous, exothermic, and entropy-increasing process. Several tests on recycling and reuse showed that LCN is a stable and effective chromium-containing wastewater adsorbent, showing that it could be used in many situations.
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Affiliation(s)
- Wencheng Wang
- College of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, China
| | - Hua Wang
- College of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, China
- Shaanxi Provincial Key Laboratory of Clean Utilization of Low-Modified Coal, Yulin University, Yulin 719000, China
| | - Yunxuan Luoyang
- College of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, China
| | - Guotao Zhang
- College of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, China
| | - Xuchun Gao
- College of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, China
- Shaanxi Provincial Key Laboratory of Clean Utilization of Low-Modified Coal, Yulin University, Yulin 719000, China
| | - Jian Li
- College of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, China
| | - Xia Li
- College of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, China
| | - Miao He
- College of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, China
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Yuan Y, Xia H, Guo W, Huang B, Chen Y, Qiu M, Wang Y, Hu B. The modified biochar from wheat straw by the combined composites of MnFe 2O 4 nanoparticles and chitosan Schiff base for enhanced removal of U(VI) ions from aqueous solutions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:126045-126056. [PMID: 38008835 DOI: 10.1007/s11356-023-30961-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 11/05/2023] [Indexed: 11/28/2023]
Abstract
In the last few decades, U(VI) is a significant environmental threat. The innovative and environmentally friendly adsorbent materials for U(VI) removal were urgent. Preparation of the modified biochar from wheat straw by combined composites of MnFe2O4 nanoparticles and chitosan Schiff base (MnFe2O4@CsSB/BC) was characterized, and adsorption experiments were carried out to investigate the performance and interfacial mechanism of U(VI) removal. The results showed that MnFe2O4@CsSB/BC exhibited high adsorption capacity of U(VI) compared with BC. The adsorption process of U(VI) removal by MnFe2O4@CsSB/BC could be ascribed as pseudo-second-order model and Langmuir model. The maximum adsorption capacity of U(VI) removal by MnFe2O4@CsSB/BC reached 19.57 mg/g at pH4.0, 30 mg/L of U(VI), and 25 °C. The possible mechanism was a chemical adsorption process, and it mainly contained electrostatic attraction and surface complexation. Additionally, it also was an economic and environmental friendly adsorbent.
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Affiliation(s)
- Youdi Yuan
- School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
| | - Haixin Xia
- School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
| | - Weijuan Guo
- School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
| | - Binbin Huang
- School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
| | - Yujun Chen
- School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
| | - Muqing Qiu
- School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, People's Republic of China.
| | - Yuchun Wang
- Zhejiang Kunhe Environmental Protection Technology Co., Ltd., Shaoxing, 312000, People's Republic of China
| | - Baowei Hu
- School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
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7
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Liapun V, Hanif MB, Sihor M, Vislocka X, Pandiaraj S, V K U, Thirunavukkarasu GK, Edelmannová MF, Reli M, Monfort O, Kočí K, Motola M. Versatile application of BiVO 4/TiO 2 S-scheme photocatalyst: Photocatalytic CO 2 and Cr(VI) reduction. CHEMOSPHERE 2023:139397. [PMID: 37406942 DOI: 10.1016/j.chemosphere.2023.139397] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/20/2023] [Accepted: 06/30/2023] [Indexed: 07/07/2023]
Abstract
Herein, the synthesis, characterization, and reduction properties of 2D TiO2 aerogel powder decorated with BiVO4 (TiO2/BiVO4) were investigated for versatile applications. First, 2D TiO2 was prepared via lyophilization and subsequently modified with BiVO4 using a wet impregnation method. The morphology, structure, composition, and optical properties were evaluated using transmission electron microscopy (TEM), X-ray diffractometry (XRD), laser-induced breakdown spectroscopy (LIBS), and diffuse reflectance spectroscopy (DRS), respectively. Significantly enhanced photocurrent densities (by 3-15 times) were obtained for TiO2/BiVO4 compared to those of pure TiO2 and BiVO4. The reduction of toxic Cr(VI) to Cr(III) was assessed, including the effect of pH on overall photocatalytic efficiency. Under acidic conditions (pH ∼ 2), Cr(VI) reduction efficiency reached 100% within 2 h. For photocatalytic CO2 reduction, the highest yields of CH4 and CO were obtained using TiO2/BiVO4. A higher efficiency for both applications was achieved because of the better separation of the electron-hole pairs in TiO2/BiVO4. The excellent stability of TiO2/BiVO4 over repeated runs highlights its potential for use in versatile environmental applications. The efficiency of TiO2/BiVO4 is due to the interplay of the structure, morphology, composition, and photoelectrochemical properties that favour the material for the presented herein photocatalytic applications.
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Affiliation(s)
- Viktoriia Liapun
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia; Department of Environmental Ecology and Landscape Management, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Muhammad Bilal Hanif
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Marcel Sihor
- Institute of Environmental Technology, CEET, VSB-Technical University of Ostrava, 17. Listopadu 15/2172, Ostrava, Poruba, Czech Republic
| | - Xenia Vislocka
- Institute of Inorganic Chemistry, Czech Academy of Sciences, Husinec-Rez 1001, Rez, 250 68, Czech Republic
| | - Saravanan Pandiaraj
- Department of Self-Development Skills, CFY Deanship, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Unnikrishnan V K
- Centre of Excellence for Biophotonics, Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Guru Karthikeyan Thirunavukkarasu
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Miroslava Filip Edelmannová
- Institute of Environmental Technology, CEET, VSB-Technical University of Ostrava, 17. Listopadu 15/2172, Ostrava, Poruba, Czech Republic
| | - Martin Reli
- Institute of Environmental Technology, CEET, VSB-Technical University of Ostrava, 17. Listopadu 15/2172, Ostrava, Poruba, Czech Republic
| | - Olivier Monfort
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Kamila Kočí
- Institute of Environmental Technology, CEET, VSB-Technical University of Ostrava, 17. Listopadu 15/2172, Ostrava, Poruba, Czech Republic.
| | - Martin Motola
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia.
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Pasupathi S, Syed Abdul Rahman S, Karuppiah S. Removal of cationic and anionic toxic pollutants from simulated solutions using Sterculia foetida pod (SFP): equilibrium isotherm, kinetics, and characterization. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 25:1913-1931. [PMID: 37165520 DOI: 10.1080/15226514.2023.2208230] [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: 05/12/2023]
Abstract
The present work explores the sorption performance of Sterculia foetida pod (SFP) for the removal of methylene blue (MB) and chromium (Cr6+) from simulated solutions separately. The material characteristics namely textural analysis (specific surface area: 2.45 m2/g), morphological behavior (heterogeneous morphology containing pores and cavities), functional analysis (COO- stretching, C-O-C stretching vibrations, and -OH stretching) and thermal behavior (279.4 °C) were examined by various analytical techniques namely BET, SEM, FTIR, and TGA. Using non-linear Langmuir isotherm analysis, the maximal sorption capacity of SFP for the removal of MB and Cr6+ was predicted to be 74.1 mg/g and 27.3 mg/g, respectively. The optimized condition for sorption of MB and Cr6+ onto SFP was: dosage: 0.07 mg/L, initial pH: 7 (MB), and 2 (Cr6+). Thermodynamic data analysis confirmed the endothermic, favorable, spontaneous, and physisorption nature of sorption. The SFP has shown significant regeneration capacity in the consecutive runs (MB: 92.5% removal till 5th trial; Cr6+: 97.6% removal till 3rd trial). Based on these findings, SFP is a promising low-cost and eco-friendly candidate for the removal of anionic and cationic toxic pollutants in the absence of energy and chemical expenditure.NOVELTY STATEMENTSterculia foetida pod (SFP) explored for the removal of anionic and cationic toxic pollutants in the absence of energy and chemical expenditure.Mechanism for the interaction between toxic pollutants and SFP was predicted.Better sorption capacity (MB: 74.1 mg/g; Cr6+: 27.8 mg/g) and better regeneration capacity (MB: 92.5% for 5th trial; Cr6+: 97.6% for 3rd trial) was achieved.A feasible and spontaneous nature of sorption process toward the removal of MB and Cr6+ was demonstrated using thermodynamic relations.
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Affiliation(s)
- Saroja Pasupathi
- School of Chemical and Biotechnology, Bioprocess Engineering Laboratory, Centre for Bioenergy, SASTRA Deemed to be University, Thanjavur, India
| | - Sameeha Syed Abdul Rahman
- School of Chemical and Biotechnology, Bioprocess Engineering Laboratory, Centre for Bioenergy, SASTRA Deemed to be University, Thanjavur, India
| | - Sugumaran Karuppiah
- School of Chemical and Biotechnology, Bioprocess Engineering Laboratory, Centre for Bioenergy, SASTRA Deemed to be University, Thanjavur, India
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Neolaka YA, Riwu AA, Aigbe UO, Ukhurebor KE, Onyancha RB, Darmokoesoemo H, Kusuma HS. Potential of activated carbon from various sources as a low-cost adsorbent to remove heavy metals and synthetic dyes. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2022.100711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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10
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Li WW, Cheng L, Liu J, Yang SY, Zan ST, Zhao GC. Recyclable magnetic Fe 3O 4@C for methylene blue removal under microwave-induced reaction system. CHEMOSPHERE 2023; 310:136821. [PMID: 36241116 DOI: 10.1016/j.chemosphere.2022.136821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 10/03/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
The reclamation and removal of organic pollutants are difficult issues of world concern. In this study, a microwave-induced reaction system (MIRS) is applied to synthesize the multifunctional composite of Fe3O4@C, which is employed to adsorb, separate and catalytic oxide the typical organic dye of methylene blue (MB). SEM, TEM, VSM, XPS, pHpzc, and N2 adsorption performances are carried out to characterize the Fe3O4@C. Results show that the Fe3O4@C mainly consists of activated Fe-O-C microspheres, which possess plentiful mesopore and macropore structures on surfaces. Batch adsorption experiments were carried out by varying key reaction conditions to optimize these. The maximum adsorption capacity of MB onto the Fe3O4@C was 305.0 mg g-1 in 120 min, at pH 10, and at a temperature of 323 K. MIRS was also assisted to regenerate the spent Fe3O4@C which presented good regeneration efficiency by sustaining 16 regeneration cycles without any oxidizing agent. SEM images and FTIR spectrum verified that MB would translate into greater or smaller-sized carbon microspheres. What's more, the adsorption of MB onto both initial and the 16th regenerated Fe3O4@C obeyed the Langmuir isotherm model and followed the pseudo-second-order adsorption kinetics, indicating the adsorptive stability after regeneration. In this study, the Fe3O4@C combined with MIRS may be one innovative strategy for organic pollutants' complete removal in the future.
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Affiliation(s)
- Wen-Wen Li
- School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, PR China
| | - Long Cheng
- School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, PR China
| | - Jing Liu
- School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, PR China
| | - Shi-Yong Yang
- School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, PR China
| | - Shu-Ting Zan
- School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, PR China
| | - Guang-Chao Zhao
- School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, PR China.
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11
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Yilmaz Camoglu A, Ozdes D, Duran C. Adsorption Behaviour of EDTA Modified Magnetic Fe3O4 Coated Brewed Tea Waste on Cr(VI) Removal. CHEMISTRY AFRICA 2022. [DOI: 10.1007/s42250-022-00545-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Sherugar P, Rao S, Kigga M, George SD, Arthi M, Déon S, Padaki M. Insights into the mechanically resilient, well-balanced polymeric membranes by incorporating Rhizophora mucronata derived activated carbon for sustainable wastewater decontamination. CHEMOSPHERE 2022; 306:135528. [PMID: 35798149 DOI: 10.1016/j.chemosphere.2022.135528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/20/2022] [Accepted: 06/25/2022] [Indexed: 06/15/2023]
Abstract
In this study, hydrophilic activated carbon has been prepared and used to synthesize innovative activated carbon/polysulfone mixed matrix membranes (MMMs). These membranes were investigated in terms of membrane morphology, hydrophilicity, antifouling ability, and metal ions rejection. The activated carbon (AC) was prepared from a simple chemical activation method using Rhizophora mucronata propagules, which are rich in aerenchyma cells and possess a high surface area. The hydrophilicity of the MMMs is enhanced by the incorporation of activated carbon, which is confirmed by the measurement of equilibrium water contact angle, water uptake and pure water flux. The optimized concentration of 0.625 wt% activated carbon (A2) incorporated mixed matrix membrane exhibits better rejection efficiencies of 98 ± 0.5%, 99 ± 0.5%, 92 ± 2%, and 44 ± 1% for Pb+2, Cd+2, Hg+2, and F- with the permeate flux of 28.27, 31.88, 33.21, 43.82 L/m2/h, respectively. The fabricated mixed matrix membranes demonstrated an excellent flux recovery ratio and reversible fouling, when filtrating a mixed feed solution containing 200 ppm BSA, 10 ppm Pb+2 and 10 ppm Cd+2. The optimized A2 membrane showed excellent long-term stability up to 120 h without compromising in permeate flux and rejection efficiency. Finally, a numerical investigation using a usual transport model has shown that dielectric exclusion was the most probable mechanism that can physically explain experimental trends.
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Affiliation(s)
- Prajwal Sherugar
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Kanakapura, Ramanagaram, Bangalore, 562112, India
| | - Srilatha Rao
- Nitte Minaxi Institute of Technology, Bangalore, 562112, India
| | - Madhuprasad Kigga
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Kanakapura, Ramanagaram, Bangalore, 562112, India
| | - Sajan D George
- Centre for Applied Nanoscience, Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, Karnataka, 576 104, India
| | - Manivannan Arthi
- Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, 602105, India
| | - Sébastien Déon
- Institut UTINAM (UMR CNRS 6213), Université de Bourgogne-Franche-Comté, 16 Route de Gray, 25030, Besançon, Cedex, France.
| | - Mahesh Padaki
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Kanakapura, Ramanagaram, Bangalore, 562112, India.
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13
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Alzahrani FM, Amari A, Katubi KM, Alsaiari NS, Tahoon MA. The synthesis of nanocellulose-based nanocomposites for the effective removal of hexavalent chromium ions from aqueous solution. OPEN CHEM 2022. [DOI: 10.1515/chem-2022-0215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Abstract
The present study reports the synthesis of a polydopamine (PDA)/nanocellulose (NC) nanocomposite for the effective removal of chromium ions from water. PDA was used to modify NC surface producing a nanocomposite namely PDA/NC, by in situ polymerization of dopamine on the surface of NC. Thereafter, the as-synthesized nanocomposite was characterized using familiar techniques such as Fourier transform infrared, X-ray diffraction, X-ray photoelectron spectroscopy, ultraviolet-visible spectroscopy, and transmission electron microscopy. All results indicated the successful combination of PDA and NC in one nanocomposite. The PDA/NC nanocomposite was evaluated for the removal of hexavalent Cr(vi) ions from an aqueous solution. The adsorption conditions, such as pH, contact time, and initial Cr(vi) concentration, were optimized. Adsorption kinetic studies revealed that Cr(vi) removal on the surface of PDA/NC nanocomposite followed the pseudo-second-order kinetic model. Furthermore, isotherm studies revealed that Cr(vi) removal followed the Langmuir isotherm model with a maximum adsorption capacity (q
m) of 210 mg/g. The adsorption mechanism study indicated that the Cr(vi) removal was reached via complexation, adsorption, and chemical reduction. The reusability of a PDA/NC nanocomposite for the removal of Cr(vi) ions was studied up to five cycles with acceptable results. The high adsorption capacity and multiple removal mechanisms validated the effective applicability of PDA/NC nanocomposite as a useful adsorbent for the removal of Cr(vi) ions from aqueous solution.
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Affiliation(s)
- Fatimah Mohammed Alzahrani
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University , P.O. Box 84428 , Riyadh 11671 , Saudi Arabia
| | - Abdelfattah Amari
- Department of Chemical Engineering, College of Engineering, King Khalid University , Abha 61411 , Saudi Arabia
- Department of Chemical Engineering & Processes, Research Laboratory of Processes, Energetics, Environment and Electrical Systems, National School of Engineers, Gabes University , Gabes 6072 , Tunisia
| | - Khadijah Mohammedsaleh Katubi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University , P.O. Box 84428 , Riyadh 11671 , Saudi Arabia
| | - Norah Salem Alsaiari
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University , P.O. Box 84428 , Riyadh 11671 , Saudi Arabia
| | - Mohamed A. Tahoon
- Department of Chemistry, College of Science, King Khalid University , P.O. Box 9004 , Abha 61413 , Saudi Arabia
- Chemistry Department, Faculty of Science, Mansoura University , Mansoura 35516 , Egypt
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14
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Alvarez-Galvan Y, Minofar B, Futera Z, Francoeur M, Jean-Marius C, Brehm N, Yacou C, Jauregui-Haza UJ, Gaspard S. Adsorption of Hexavalent Chromium Using Activated Carbon Produced from Sargassum ssp.: Comparison between Lab Experiments and Molecular Dynamics Simulations. Molecules 2022; 27:6040. [PMID: 36144787 PMCID: PMC9503432 DOI: 10.3390/molecules27186040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/06/2022] [Accepted: 09/10/2022] [Indexed: 12/04/2022] Open
Abstract
Adsorption is one of the most successful physicochemical approaches for removing heavy metal contaminants from polluted water. The use of residual biomass for the production of adsorbents has attracted a lot of attention due to its cheap price and environmentally friendly approach. The transformation of Sargassum-an invasive brown macroalga-into activated carbon (AC) via phosphoric acid thermochemical activation was explored in an effort to increase the value of Sargassum seaweed biomass. Several techniques (nitrogen adsorption, pHPZC, Boehm titration, FTIR and XPS) were used to characterize the physicochemical properties of the activated carbons. The SAC600 3/1 was predominantly microporous and mesoporous (39.6% and 60.4%, respectively) and revealed a high specific surface area (1695 m2·g-1). To serve as a comparison element, a commercial reference activated carbon with a large specific surface area (1900 m2·g-1) was also investigated. The influence of several parameters on the adsorption capacity of AC was studied: solution pH, solution temperature, contact time and Cr(VI) concentration. The best adsorption capacities were found at very acid (pH 2) solution pH and at lower temperatures. The adsorption kinetics of SAC600 3/1 fitted well a pseudo-second-order type 1 model and the adsorption isotherm was better described by a Jovanovic-Freundlich isotherm model. Molecular dynamics (MD) simulations confirmed the experimental results and determined that hydroxyl and carboxylate groups are the most influential functional groups in the adsorption process of chromium anions. MD simulations also showed that the addition of MgCl2 to the activated carbon surface before adsorption experiments, slightly increases the adsorption of HCrO4- and CrO42- anions. Finally, this theoretical study was experimentally validated obtaining an increase of 5.6% in chromium uptake.
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Affiliation(s)
- Yeray Alvarez-Galvan
- Laboratoire COVACHIM-M2E, EA 3592, Campus de Fouillole, Université des Antilles, 97157 Pointe à Pitre, France
- NBC SARL Company, 8, Rue Saint Cyr, Résidence Océane—Apt no. 5, 97300 Cayenne, France
| | - Babak Minofar
- Laboratory of Structural Biology and Bioinformatics, Institute of Microbiology of the Czech Academy of Sciences, Zamek 136, 37333 Nové Hrady, Czech Republic
| | - Zdeněk Futera
- Faculty of Science, University of South Bohemia České Budějovice, Branišovská 1760/31a, 37005 České Budějovice, Czech Republic
| | - Marckens Francoeur
- Laboratoire COVACHIM-M2E, EA 3592, Campus de Fouillole, Université des Antilles, 97157 Pointe à Pitre, France
| | - Corine Jean-Marius
- Laboratoire COVACHIM-M2E, EA 3592, Campus de Fouillole, Université des Antilles, 97157 Pointe à Pitre, France
| | - Nicolas Brehm
- NBC SARL Company, 8, Rue Saint Cyr, Résidence Océane—Apt no. 5, 97300 Cayenne, France
| | - Christelle Yacou
- Laboratoire COVACHIM-M2E, EA 3592, Campus de Fouillole, Université des Antilles, 97157 Pointe à Pitre, France
| | | | - Sarra Gaspard
- Laboratoire COVACHIM-M2E, EA 3592, Campus de Fouillole, Université des Antilles, 97157 Pointe à Pitre, France
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15
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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: 25] [Impact Index Per Article: 12.5] [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.
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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.
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16
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Ekanayake A, Rajapaksha AU, Selvasembian R, Vithanage M. Amino-functionalized biochars for the detoxification and removal of hexavalent chromium in aqueous media. ENVIRONMENTAL RESEARCH 2022; 211:113073. [PMID: 35283075 DOI: 10.1016/j.envres.2022.113073] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 02/23/2022] [Accepted: 03/02/2022] [Indexed: 06/14/2023]
Abstract
The objectives of the study were to evaluate and compare the efficacy of hexavalent chromium (Cr(VI)) removal by amino-modified (HDA-MPBC) and pristine biochar (MPBC) derived from an invasive plant Mimosa pigra. Prepared biochars were characterized and batch experiments were conducted to check the performance and the mechanisms of Cr(VI) removal. FTIR spectra revealed that the surface of HDA-MPBC is abundant with amino functional groups which was further confirmed by XPS analysis. The highest Cr(VI) removal for both HDA-MPBC (76%) and MPBC (62%) was observed at pH 3.0. The batch sorption data were well fitted to the Freundlich isotherm model and pseudo-second-order kinetic model, suggesting the involvement of both physisorption and chemisorption mechanisms for Cr(VI) removal. X-ray photoelectron spectroscopy studies showed that both Cr(VI) and Cr(III) were presented at the modified biochar surface after adsorption. These results indicated that the electrostatic attraction of Cr(VI) coupled with reduction of Cr(VI) to Cr(III) and complexation of Cr(III) ions with functional groups on HDA-MPBC as the most plausible mechanism for removal of Cr(VI) by modified biochar. Regeneration experiment concluded that adsorbed Cr(VI) onto the surface of HDA-MPBC had the least tendency of being desorbed in basic conditions. HDA-MPBC showed a high performance in adsorptive removal of Cr(VI) compared to pristine biochar signifying the amino modification to enhance adsorption performance of biochar in Cr(VI) removal from wastewater.
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Affiliation(s)
- Anusha Ekanayake
- Ecosphere Resilience Research Center, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka
| | - Anushka Upamali Rajapaksha
- Ecosphere Resilience Research Center, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka; Instrument Center, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka.
| | - Rangabhashiyam Selvasembian
- Department of Biotechnology, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, 613401, India
| | - Meththika Vithanage
- Ecosphere Resilience Research Center, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka; Sustainability Cluster, School of Engineering, University of Petroleum & Energy Studies, Dehradun, Uttarakhand, 248007, India
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17
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Gul A, Ma’amor A, Khaligh NG, Julkapli NM. Recent Advancements in the Applications of Activated Carbon for the Heavy Metals and Dyes Removal. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.07.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Amin NK, Nosier SA, Abdel-Aziz MH, Hassan MS, Sedahmed GH, El-Naggar MA. Electrochemical regeneration of hexavalent chromium from aqueous solutions in a gas sparged parallel plate reactor. ENVIRONMENTAL TECHNOLOGY 2022; 43:2405-2417. [PMID: 33494654 DOI: 10.1080/09593330.2021.1881827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
In this study anodic oxidation of Cr2(SO4)3 was carried out in an air-sparged divided parallel plate cell. Variables studied were current density, Cr2(SO4)3 concentration, and superficial air velocity. The rate constant of Cr2(SO4)3 oxidation was found to increase with increasing current density and Cr2(SO4)3 concentration. The effect of air sparging was found to depend on Cr2(SO4)3 concentrations, at high Cr2(SO4)3 concentration (> 0.1 M) air sparging does not affect the rate constant of the reaction denoting that the reaction is charge transfer controlled. As Cr2(SO4)3 concentration decreases below 0.1 M the reaction becomes under mixed diffusion and chemical control and the rate constant increases with increasing air superficial velocity, the lower Cr2(SO4)3 concentration the higher the contribution of diffusion to the reaction rate. The current efficiency of the process ranged from 20 to 85% depending on current density and Cr2(SO4)3 concentration. Electrical energy consumption which ranged from 1.8 to 14.4 kW h/kg of Cr6+ was found to increase with increasing current density and decreases with increasing Cr2(SO4)3 concentration. Air sparging was found to decrease electrical energy consumption in the case of dilute solutions << 0.1 M Cr2(SO4)3.
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Affiliation(s)
- N K Amin
- Chemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, Egypt
| | - S A Nosier
- Chemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, Egypt
| | - M H Abdel-Aziz
- Chemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, Egypt
- Chemical and Materials Engineering Department, King Abdulaziz University, Rabigh, Saudi Arabia
| | - M S Hassan
- Chemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, Egypt
| | - G H Sedahmed
- Chemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, Egypt
| | - M A El-Naggar
- Chemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, Egypt
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19
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Density Functional Theory Calculations of the Effect of Oxygenated Functionals on Activated Carbon towards Cresol Adsorption. SURFACES 2022. [DOI: 10.3390/surfaces5020020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
The mechanism of adsorption of p-cresol over activated carbon adsorbent and the specific role of oxygen functional groups on cresol adsorption were studied using density functional theory (DFT) calculations. All the energy calculations and geometry optimization pertaining to DFT calculations were done using the B3LYP hybrid functional at basis set 6-31g level of theory in a dielectric medium of ε = 80 (corresponding to water). The interaction of cresol with different activated carbon models, namely pristine activated carbon, hydroxyl functionalized activated carbon, carbonyl functionalized activated carbon, and carboxyl functionalized activated carbon, were considered, and their adsorption energies corresponded to −416.47 kJ/mol, −54.73 kJ/mol, −49.99 kJ/mol, and −63.62 kJ/mol, respectively. The high adsorption energies suggested the chemisorptive nature of the cresol-activated carbon adsorption process. Among the oxygen functional groups, the carboxyl group tended to influence the adsorption process more than the hydroxyl and carbonyl groups, attributing to the formation of two types of hydrogen bonds between the carboxyl activated carbon and the cresol simultaneously. The outcomes of this study may provide valuable insights for future directions to design activated carbon with improved performance towards cresol adsorption.
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20
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Khalil KM, Elhamdy WA, Elsamahy AA. Biomass derived P−doped activated carbon as nanostructured mesoporous adsorbent for chromium(VI) pollutants with pronounced functional efficiency and recyclability. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128553] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Imgharn A, Anchoum L, Hsini A, Naciri Y, Laabd M, Mobarak M, Aarab N, Bouziani A, Szunerits S, Boukherroub R, Lakhmiri R, Albourine A. Effectiveness of a novel polyaniline@Fe-ZSM-5 hybrid composite for Orange G dye removal from aqueous media: Experimental study and advanced statistical physics insights. CHEMOSPHERE 2022; 295:133786. [PMID: 35114254 DOI: 10.1016/j.chemosphere.2022.133786] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 01/05/2022] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
A polyaniline@Fe-ZSM-5 composite was synthesized via an in situ interfacial polymerization procedure. The morphology, crystallinity, and structural features of the as-developed PANI@Fe-ZSM-5 composite were assessed using scanning electron microscopy - energy dispersive spectroscopy (SEM-EDS), X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy (XPS). The composite was efficiently employed for the first time as an adsorbent Orange G (OG) dyestuff from water. The OG dye adsorption performance was investigated as a function of several operating conditions. The kinetic study demonstrated that a pseudo-second-order model was appropriate to anticipate the OG adsorption process. The maximum adsorption capacity was found to be 217 mg/g. The adsorption equilibrium data at different temperatures were calculated via advanced statistical physics formalism. The entropy function indicated that the disorder of OG molecules improved at low concentrations and lessened at high concentrations. The free enthalpy and internal energy functions suggested that the OG adsorption was a spontaneous process and physisorption in nature. Regeneration investigation showed that the PANI@Fe-ZSM-5 could be effectively reused up to five cycles. The main results of this work provided a deep insight on the experimental study supported by advanced statistical physics prediction for the adsorption of Orange G dye onto the novel polyaniline@Fe-ZSM-5 hybrid composite. Additionally, the experimental and advanced statistical physics findings stated in this study may arouse research interest in the field of wastewater treatment.
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Affiliation(s)
- Abdelaziz Imgharn
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco.
| | - Lahoucine Anchoum
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Abdelghani Hsini
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco; National HigheNational Higher School of Chemistry (NHSC), University Ibn Tofail, BP. 133-14000, Kenitra, Morocco; Laboratory of Advanced Materials and Process Engineering (LAMPE), Faculty of Science, Ibn Tofail University, BP 133, 14000, Kenitra, Morocco
| | - Yassine Naciri
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Mohamed Laabd
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Mohamed Mobarak
- Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Nouh Aarab
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Asmae Bouziani
- Chemical Engineering Department, Middle East Technical University, Ankara, Turkey
| | - Sabine Szunerits
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 - IEMN, Lille F, 59000, France
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 - IEMN, Lille F, 59000, France
| | - Rajae Lakhmiri
- Laboratory of Chemical Engineering and Valorization Resources, Faculty of Sciences and Techniques, Abdelmalek Essaadi University, Tangier, Morocco
| | - Abdallah Albourine
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco.
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22
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Rajapaksha AU, Selvasembian R, Ashiq A, Gunarathne V, Ekanayake A, Perera VO, Wijesekera H, Mia S, Ahmad M, Vithanage M, Ok YS. A systematic review on adsorptive removal of hexavalent chromium from aqueous solutions: Recent advances. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 809:152055. [PMID: 34871684 DOI: 10.1016/j.scitotenv.2021.152055] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 11/02/2021] [Accepted: 11/25/2021] [Indexed: 05/26/2023]
Abstract
The contamination of natural resources by hexavalent chromium (Cr(VI)) originating from natural and anthropogenic activities is a serious environmental concern. Although many articles on chromium remediation have been published, a comprehensive understanding of the mechanisms involved in remediation with different sorbents is not yet available. In this systematic review, the performance and applicability of several adsorptive materials for Cr(VI) removal from aqueous media are discussed, along with a detailed analysis of the mechanisms involved. Statistical analysis is applied to compare the efficacies of different adsorbents, while a similar approach is used to determine the effects of sorbent properties and experimental conditions on the adsorption capacity. A detailed analysis of the factors involved in fixed-bed column studies is also presented. A suitable desorption approach to the regeneration of the spent adsorbent and its adsorption performance in reuse is also examined. Among the different sorbents, nanoparticles and mineral-doped biochar were found to be the most effective sorbents, while the adsorption was higher at low pH (~4.0) than that at intermediate pH (6-8). Contrary to our expectation, adsorption was high for sorbents with low specific surface areas, suggesting that the adsorption of Cr(VI) is largely influenced by the chemical properties of the sorbents. The optimum adsorption in fixed-bed column systems is obtained at a lower Cr(VI) ion concentration, a lower influent flow rate, and a higher bed height. Since most of the studies reviewed herein were merely experimental and utilized ideal conditions with the presence of a single contaminant, i.e. Cr(VI) in water, further studies on adsorption dynamics with the presence of other interfering ions are suggested. This review is promising for the further development of Cr(VI) removal strategies and closes the research gaps pertaining to their challenges.
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Affiliation(s)
- Anushka Upamali Rajapaksha
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka; Instrument Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka.
| | - Rangabhashiyam Selvasembian
- Department of Biotechnology, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, India
| | - Ahamed Ashiq
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka; Hydrometallurgy and Environment Laboratory, Robert M. Buchan Department of Mining, Queen's University, 25 Union Street, Kingston, Ontario K7L 3N6, Canada
| | - Viraj Gunarathne
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka; University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany
| | - Anusha Ekanayake
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - V O Perera
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - Hasintha Wijesekera
- Department of Natural Resources, Sabaragamuwa University of Sri Lanka, Belihuloya, Sri Lanka
| | - Shamin Mia
- Department of Agronomy, Patuakhali Science and Technology, University of Patuakhali, Bangladesh
| | - Mahtab Ahmad
- Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, 45320, Pakistan
| | - Meththika Vithanage
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - Yong Sik Ok
- Korea Biochar Research Center & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea.
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Yang J, Wang R, Cheng Z, Chen Y, Li L, Wang X. Removal and recycling of hexavalent chromium from alkaline wastewater via a new ferrite process to produce the valuable chromium ferrite. J Colloid Interface Sci 2022; 608:3059-3068. [PMID: 34802761 DOI: 10.1016/j.jcis.2021.11.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/27/2021] [Accepted: 11/08/2021] [Indexed: 11/29/2022]
Abstract
Current technologies for removal of Cr(VI) are generally fit for acidic wastewater. In this study, a new ferrite process for removal and recycling of Cr(VI) from alkaline wastewater to produce the valuable chromium ferrite has been developed. The results show that this new ferrite method is a one-step process which can be divided into two successive reactions including Cr(VI) reduction to form coprecipitation (Cr0.25Fe0.75(OH)3) and subsequently magnetic conversion of Cr0.25Fe0.75(OH)3 induced by Fe2+ under the same alkaline condition. The total Fe/Cr mole ratio of 5:1 is at least required for the chromium ferrite transformation. Increasing temperature and pH can enhance the interaction of Fe2+ with Cr0.25Fe0.75(OH)3 and further promote the formation of chromium ferrite, while suppressing the generation of nonmagnetic by-product goethite. Almost pure chromium ferrite is formed under proposed optimum conditions (Fe/Cr = 7:1, 65 °C and pH of 9) with Cr(VI) removal ratio around 100%. The Cr(VI) remained in the filtrate can be reduced to 0.01 mg/L which is much lower than the limits concentration for surface water (≤0.05 mg/L). The chromium ferrite product whose molecular formula can be expressed as Cr0.5-xFe2.5+xO4 (where 0 ≤ x < 0.5) presents good magnetic properties and has the potential to be recycled as a useful material.
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Affiliation(s)
- Jing Yang
- College of Resources and Environment, Southwest University, Chongqing 400715, PR China
| | - Ruixue Wang
- College of Resources and Environment, Southwest University, Chongqing 400715, PR China
| | - Ziyi Cheng
- College of Resources and Environment, Southwest University, Chongqing 400715, PR China
| | - Yucheng Chen
- College of Resources and Environment, Southwest University, Chongqing 400715, PR China; Chongqing Engineering Research Center of Rural Cleaning, Chongqing 400716, PR China
| | - Lei Li
- College of Resources and Environment, Southwest University, Chongqing 400715, PR China.
| | - Xingrun Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
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Hao K, Zhang Z, Wang B, Zhang J, Zhang G. Mechanism of Cr (VI) reduction by Pichia guilliermondii ZJH-1. IRANIAN JOURNAL OF BIOTECHNOLOGY 2022; 20:e3001. [PMID: 35891955 PMCID: PMC9284239 DOI: 10.30498/ijb.2021.275524.3001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Background Chromium is one of the most used toxic heavy metals. A large amount of chromium waste is discharged into the environment every year, causing serious environmental pollution, especially the pollution of soil and water by hexavalent chromium. Eliminating hexavalent chromium is the primary challenge to achieve a pollution-free environment. Objectives This study aims to understand the mechanism of Pichia guilliermondii's reduction of hexavalent chromium through enzymatic characteristic, oxidative stress response, and reduction product. Material and Methods The strain Pichia guilliermondii ZJH-1 was isolated and stored in our laboratory. The hexavalent chromium uses 1,5-diphenyl carbazide method (DPC) to measure. The UV spectrophotometer was used to measure the intracellular antioxidant enzyme activity, and the kit was used to measure the activity of catalase and glutathione reductase. The reduction products were analyzed by ultraviolet full-wavelength scanning and FTIR. Results The reduction of hexavalent chromium by ZJH-1 is accompanied by an increase in active oxygen and antioxidant levels. Chromate reductase mainly exists in the extracellular fluid, and the carboxyl, amide, hydroxide and other groups of the cell wall are involved in the bioremediation of Cr(VI) by complexing with Cr(VI) and Cr(III). After ZJH-1 was treated with different concentrations of Cr(VI), the expression of proteins with molecular weights of 15 kDa, 18 kDa, 35 kDa, 62 kDa, and 115 kDa increased significantly. This strain is the most suitable for chromate reductase (CChR). The optimum temperature is 40℃ and the optimum pH is 7.0. Cu2+ can enhance the activity of chromate reductase. At the optimum temperature and pH, the chromate reductase Km of this strain is 0.40 μmol and Vmax is 14.47 μmoL.L-1·min-1. Conclusions The bioremediation of Cr(VI) by Pichia guilliermondii ZJH-1 is attributable to the reduction product (Cr(III)) that can be removed in the precipitate and can be fixed on the cell surface and accumulated in the cell.
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Affiliation(s)
- Kongli Hao
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Zihui Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Binsong Wang
- School of Chemistry and Material Sciences, Heilongjiang University, Harbin 150080, China
| | - Jie Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Guocai Zhang
- College of Forestry, Northeast Forestry University, Harbin 150040, China
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25
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Sherugar P, Padaki M, Naik NS, George SD, Murthy DHK. Biomass-derived versatile activated carbon removes both heavy metals and dye molecules from wastewater with near-unity efficiency: Mechanism and kinetics. CHEMOSPHERE 2022; 287:132085. [PMID: 34492412 DOI: 10.1016/j.chemosphere.2021.132085] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 07/28/2021] [Accepted: 08/27/2021] [Indexed: 06/13/2023]
Abstract
Due to the ever-increasing industrialization, it is critical to protect the environment and conserve water resources by developing efficient wastewater treatment methods. Traditional methods that simultaneously remove heavy metal ions and complex dyes are too expensive and tedious to commercialize. This work demonstrates the versatility, effectiveness, and potential of a biomass-derived adsorbent (from a mangrove fruit of Rhizophora mucronata) synthesized using a simple route for rapid adsorption of complex dyes and heavy metals with an efficiency of near unity. The cartridges were prepared using activated carbon that removes both dye molecules and heavy metal ions simultaneously from wastewater, corroborating its applicability/feasibility to treat wastewater. Owing to the high surface area (1061.5 m2g-1) and the pore volume (0.5325 cm3g-1), the adsorbent showed >99% removal efficiency in just 12 min of exposure to wastewater. The cartridge exhibits >90% removal efficiency of both dyes and heavy metals from its mixed feed solution. The Langmuir and Freundlich models successfully explained the adsorption kinetics. These developed cartridges are versatile, rapid, efficient, and promising candidates for environmental remediation.
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Affiliation(s)
- Prajwal Sherugar
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Kanakapura, Ramanagaram, Bangalore, 562112, India
| | - Mahesh Padaki
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Kanakapura, Ramanagaram, Bangalore, 562112, India.
| | - Nagaraj S Naik
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Kanakapura, Ramanagaram, Bangalore, 562112, India
| | - Sajan D George
- Centre for Applied Nanoscience, Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, Karnataka, 576 104, India
| | - Dharmapura H K Murthy
- Materials Science & Catalysis Division, Poornaprajna Institute of Scientific Research, Bangalore, Karnataka, India
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El-Denglawey A, Mubarak MF, Selim H. Tertiary Nanocomposites of Metakaolinite/Fe3O4/SBA-15 Nanocomposite for the Heavy Metal Adsorption: Isotherm and Kinetic Study. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-021-05690-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Thangagiri B, Sakthivel A, Jeyasubramanian K, Seenivasan S, Dhaveethu Raja J, Yun K. Removal of hexavalent chromium by biochar derived from Azadirachta indica leaves: Batch and column studies. CHEMOSPHERE 2022; 286:131598. [PMID: 34325269 DOI: 10.1016/j.chemosphere.2021.131598] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 06/29/2021] [Accepted: 07/16/2021] [Indexed: 06/13/2023]
Abstract
This report details the preparation, characterization, and applications of an inexpensive adsorbent obtained from Azadirachta indica leaves (Neem biochar (NBC)) and used to remove Cr(VI) from the synthetic waste water. The obtained NBC was characterized by XRD, FTIR, FESEM, EDX and Zeta potential measurements. Adsorption experiments conducted at various pH levels confirmed that 58.54 mg g-1 of Cr(VI) was removed by NBC at pH 2. Experiments conducted at various temperatures revealed that the Cr(VI) adsorption on NBC fits the Langmuir-type adsorption isotherm. A fixed-bed column study was conducted to obtain breakthrough curve for the adsorption process, which confirmed that the NBC usage rate was 4.63 g/L. Cr(VI)NBC was reactivated by NaOH treatment, and the reactivated NBC was used as a sorbent to remove fresh Cr(VI) from the synthetic waste water repeatedly. A cost analysis was also performed for the Cr(VI) removal confirmed that the process was less expensive.
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Affiliation(s)
- B Thangagiri
- Department of Chemistry, Mepco Schlenk Engineering College, Sivakasi, 626005, Tamil Nadu, India
| | - A Sakthivel
- Department of Chemistry, Mepco Schlenk Engineering College, Sivakasi, 626005, Tamil Nadu, India.
| | - K Jeyasubramanian
- Department of Chemistry, Mepco Schlenk Engineering College, Sivakasi, 626005, Tamil Nadu, India
| | - S Seenivasan
- Department of Environmental Toxicology, Texas Tech University, Lubbock, TX, 79409-1163, USA
| | - J Dhaveethu Raja
- Department of Chemistry, The American College, Madurai, 625 005, India
| | - Kyusik Yun
- Department of BioNano Technology, Gachon University, Seongnam, 13120, Republic of Korea.
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Preparation of a Novel Activated Carbon from Cassava Sludge for the High-Efficiency Adsorption of Hexavalent Chromium in Potable Water: Adsorption Performance and Mechanism Insight. WATER 2021. [DOI: 10.3390/w13243602] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Particularly, because of the leakage risk of metal elements from sludge carbon, little attention has been focused on using sludge activated carbon as an adsorbent for the removal of Cr (VI) from contaminated water sources. Herein, a novel sludge carbon derived from dewatered cassava sludge was synthesized by pyrolysis using ZnCl2 as an activator at the optimal conditions. The prepared sludge activated carbon possessed a large BET surface (509.03 m2/g), demonstrating an efficient removal for Cr (VI). Although the time to reach equilibrium was extended by increasing the initial Cr (VI) concentration, the adsorption process was completed within 3 h. The kinetics of adsorption agreed with the Elovich model. The whole adsorption rate was controlled by both film and intra-particle diffusion. The Cr (VI) removal efficiency increased with elevating temperature, and the adsorption equilibrium process followed the Freundlich isotherm model. The adsorption occurred spontaneously with endothermic nature. The removal mechanism of Cr (VI) on the prepared sludge activated carbon depended highly on solution pH, involving pore filling, electrostatic attraction, reduction, and ion exchange. The trace leakage of metal elements after use was confirmed. Therefore, the prepared sludge activated carbon was considered to be a highly potential adsorbent for Cr (VI) removal from contaminated raw water.
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Mallakpour S, Sirous F, Hussain CM. Sawdust, a versatile, inexpensive, readily available bio-waste: From mother earth to valuable materials for sustainable remediation technologies. Adv Colloid Interface Sci 2021; 295:102492. [PMID: 34343904 DOI: 10.1016/j.cis.2021.102492] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 07/18/2021] [Accepted: 07/19/2021] [Indexed: 12/21/2022]
Abstract
Sawdust or wood shaving is a relatively abundant and inexpensive lignocellulosic compound, which is provided by mother nature. It is a waste of industry and agriculture, that is found in large quantities and has disposal problems. Nowadays, waste management (like sawdust) and research on converting it to different compounds for special applications and goals have been receiving tremendous attention. So, introducing sawdust as a kind of interesting bio-waste and turn it into wealth for diverse utilizations can be mentioned as the main goal of this overview. In this regard, in the first part, sawdust structure and properties are considered. It is then followed by highlighting its wide applications in sustainable water remediation technology, production of activated carbon, oil-water separation, and high-performance composites fabrication. Please come on to start a journey on this motivating topic.
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Affiliation(s)
- Shadpour Mallakpour
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran.
| | - Fariba Sirous
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran
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30
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Xie Y, Zhang D, Jati GNP, Yang R, Zhu W, Li W, Marin E, Pezzotti G. Effect of structural and compositional alterations on the specific capacitance of hazelnut shell activated carbon. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126951] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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31
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Tu B, Chen H, Deng J, Xue S, Ma X, Xu Y, Xie Z, Tao H. Preparation of N-I co-doped TiO2 supported on activated carbon photocatalyst for efficient photocatalytic reduction of Cr(Ⅵ) ions. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126660] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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32
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Mohanta S, Sahu MK, Mishra PC, Giri AK. Removal of Cr (VI) from aqueous solution by activated charcoal derived from Sapindus trifoliate L fruit biomass using continuous fixed bed column studies. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:55-65. [PMID: 34280154 DOI: 10.2166/wst.2021.217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this study, the removal of hexavalent chromium from aqueous solution were examined using activated charcoal derived from Sapindus trifoliate L fruit biomass in continuous fixed-bed column studies. The activated S. trifoliate L fruit charcoal was prepared by treating the fruit powder using concentrated nitric acid solution. Experiments were performed to investigate the effect of bed height and initial concentration on the breakthrough and saturation times. The breakthrough and saturation time increases with increase in bed height and initial concentration of chromium solutions. The maximum adsorption capacity of S. trifoliate L charcoal for hexavalent chromium was found to be 1.719 mg/g in the bed height 15 cm and initial concentration 10 mg/L, respectively. Column data required at various conditions were explained using Bohart-Adams and Thomas model. Two models were found to be suitable to describe the definite part of the dynamic behaviour of the column with regard to bed-height and initial concentration of hexavalent chromium. On comparison of Adjusted R2 and estimated standard error, the Thomas model was found to best-fitted model and can be used to predict the adsorption of the hexavalent chromium in fixed-bed column studies. Activated S. trifoliate L fruit charcoal was characterised by SEM-EDX and FTIR analysis.
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Affiliation(s)
- Samir Mohanta
- School of Engineering & Technology (BSH), GIET University, Gunupur, Odisha, India
| | - Manoj Kumar Sahu
- School of Engineering & Technology (BSH), GIET University, Gunupur, Odisha, India
| | - Prakash Chandra Mishra
- Department of Environmental Science, Fakir Mohan University, Balasore, Odisha 756020, India
| | - Anil Kumar Giri
- Department of Environmental Science, Fakir Mohan University, Balasore, Odisha 756020, India
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34
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Ultrafast and efficient removal of aqueous Cr(VI) using iron oxide nanoparticles supported on Bermuda grass-based activated carbon. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116026] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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35
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Zhang Z, Li Y, Ding L, Yu J, Zhou Q, Kong Y, Ma J. Novel sodium bicarbonate activation of cassava ethanol sludge derived biochar for removing tetracycline from aqueous solution: Performance assessment and mechanism insight. BIORESOURCE TECHNOLOGY 2021; 330:124949. [PMID: 33725520 DOI: 10.1016/j.biortech.2021.124949] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
NaHCO3 was used as a novel activator to produce cassava ethanol sludge-based biochar. The NaHCO3-activated biochar showed superior adsorption capacity for tetracycline (154.45 mg/g) than raw biochar (34.04 mg/g). Orthogonal experiments confirmed the optimal preparation conditions of biochar. Increasing adsorbent dosage and temperature facilitated tetracycline removal. The maximum removal was 92.60% at pH = 3.0. Calcium ions and alkalinity decreased tetracycline removal. The time for attaining equilibrium was extended with increasing tetracycline concentration, but the equilibrium could be completed within 24 h. Langmuir model fitted the equilibrium data well. Kinetics process followed the Elovich model. The adsorption rate was controlled by both intraparticle and liquid film diffusion and the process was endothermic and spontaneous. The electrostatic attraction, hydrogen bonding, π-π interactions, and pore-filling were involved in the adsorption mechanism. The findings may provide an underlying guide for sludge disposal and removal of tetracycline from wastewater in practical application.
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Affiliation(s)
- Zhilin Zhang
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China
| | - Yan Li
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China; Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education, Anhui University of Technology, Ma'anshan 243032, China
| | - Lei Ding
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China; Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education, Anhui University of Technology, Ma'anshan 243032, China.
| | - Jian Yu
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China
| | - Qiang Zhou
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China
| | - Yanli Kong
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China; Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education, Anhui University of Technology, Ma'anshan 243032, China
| | - Jiangya Ma
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China; Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education, Anhui University of Technology, Ma'anshan 243032, China
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36
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Sahlabji T, El-Nemr MA, Nemr AE, Ragab S, Alghamdi MM, El-Zahhar AA, Idris AM, Said TO. High surface area microporous activated carbon from Pisum sativum peels for hexavalent chromium removal from aquatic environment. TOXIN REV 2021. [DOI: 10.1080/15569543.2021.1908361] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Taher Sahlabji
- Environmental Monitoring, Assessment & Treatment (EMAT) Research Group, Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia
| | - Mohamed A. El-Nemr
- Department of Chemical Engineering, Faculty of Engineering, Cairo University, Giza, Egypt
| | - Ahmed El Nemr
- Environmental Division, National Institute of Oceanography and Fisheries, Alexandria, Egypt
| | - Safaa Ragab
- Environmental Division, National Institute of Oceanography and Fisheries, Alexandria, Egypt
| | - Majed M. Alghamdi
- Environmental Monitoring, Assessment & Treatment (EMAT) Research Group, Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia
| | - Adel A. El-Zahhar
- Environmental Monitoring, Assessment & Treatment (EMAT) Research Group, Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia
- Department of Nuclear Chemistry, AEA, Cairo, Egypt
| | - Abubakr M. Idris
- Environmental Monitoring, Assessment & Treatment (EMAT) Research Group, Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
| | - Tarek O. Said
- Environmental Monitoring, Assessment & Treatment (EMAT) Research Group, Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia
- Environmental Division, National Institute of Oceanography and Fisheries, Alexandria, Egypt
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37
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Recent advances in removal techniques of Cr(VI) toxic ion from aqueous solution: A comprehensive review. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115062] [Citation(s) in RCA: 175] [Impact Index Per Article: 58.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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38
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Fabrication of ferrihydrite-loaded magnetic sugar cane bagasse charcoal adsorbent for the adsorptive removal of selenite from aqueous solution. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.126131] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Asimakopoulos G, Baikousi M, Salmas C, Bourlinos AB, Zboril R, Karakassides MA. Advanced Cr(VI) sorption properties of activated carbon produced via pyrolysis of the "Posidonia oceanica" seagrass. JOURNAL OF HAZARDOUS MATERIALS 2021; 405:124274. [PMID: 33131936 DOI: 10.1016/j.jhazmat.2020.124274] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/30/2020] [Accepted: 10/11/2020] [Indexed: 06/11/2023]
Abstract
This research deals with the removal of Cr(VI), one of the most toxic heavy metal in biological systems, from wastewater by using activated carbon produced via pyrolysis and chemical activation of "Posidonia oceanica". That is the most important and well-studied seagrass species of the Mediterranean Sea. The as produced activated carbon exhibited high specific surface area up to 1563 m2/g and a cumulative pore volume of 0.74 cm3/g, allocated to 74% micro-pores and 26% to meso-macro- pores. The adsorption capacity of Cr(VI) into Posidonia oceanica activated carbon was studied via batch experiments considering the contact time, the initial concentration and the pH parameters. The results were interpreted using four different adsorption kinetic models. The activated carbon material seems to exhibit excellent sorption properties with rapid removal capability for Cr(VI). The estimated maximum uptake capacity at equilibrium stage was ~120 mg/g. Also, the initial adsorption rate ri was dependent on the initial Cr(VI) concentration in aqueous solution and it was from 77 mg/(g*h) to 264 mg/(g*h). The best fitted kinetic model seems to be the Diffusion-Chemisorption model with the rate constant KDC of the Cr(VI) ions transfer from liquid to solid particles extend from 52 to 78 mg/(g*h0.5).
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Affiliation(s)
- Georgios Asimakopoulos
- Department of Materials Science and Engineering, University of Ioannina, GR-45110 Ioannina, Greece
| | - Maria Baikousi
- Department of Materials Science and Engineering, University of Ioannina, GR-45110 Ioannina, Greece.
| | - Constantinos Salmas
- Department of Materials Science and Engineering, University of Ioannina, GR-45110 Ioannina, Greece
| | | | - Radek Zboril
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University in Olomouc, 77146, Czech Republic; Nanotechnology Centre, VŠB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Michael A Karakassides
- Department of Materials Science and Engineering, University of Ioannina, GR-45110 Ioannina, Greece; Institute of Materials Science and Computing, University Research Center of Ioannina (URCI), 45110 Ioannina, Greece
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40
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Li G, Liu Y, Shen Y, Fang Q, Liu F. Bimetallic Coordination in Two-Dimensional Metal–Organic Framework Nanosheets Enables Highly Efficient Removal of Heavy Metal Lead (II). FRONTIERS IN CHEMICAL ENGINEERING 2021. [DOI: 10.3389/fceng.2021.636439] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Two-dimensional (2D) metal–organic frameworks (MOFs) have emerged as intriguing 2D materials because of their specific features of 2D morphology and designable skeletons, which have elicited great interest in environment remediation. In this work, 2D MOF nanosheets are fabricated via a mixed-solvent solvothermal method, and a regulation strategy of metal inorganic clusters on MOFs is used to construct two different 2D MOFs with monometallic and bimetallic coordination, that is, Ni-MOF and Ni/Cd-MOF. Binary metal coordination renders more crystal defects and vacancies in the framework; thus, compared to monometallic Ni-MOF, bimetallic Ni/Cd-MOF exhibits fewer layers (4∼5 layers), higher specific surface area, larger pore size, and higher surface electronegativity, which leads to its excellent adsorption removal for Pb2+, with higher adsorption rate and affinity, and superior adsorption capacity (950.61 mg/g, almost twice as high as that of monometallic Ni-MOF). Besides, the adsorption mechanism further confirmed that the carboxyl groups (−COO−) from organic linker on 2D MOFs serve as the main binding sites for Pb2+ coordination, and bimetallic Ni/Cd-MOF has more active −COO− sites for Pb2+ capture. Thus, the bimetallic Ni/Cd-MOF regulated by heterogeneous metal atoms shows promising application for highly efficient adsorption of heavy metal ions.
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Zambare RS, Nemade PR. Ionic liquid-modified graphene oxide sponge for hexavalent chromium removal from water. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125657] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Abstract
Porous materials constitute an attractive research field due to their high specific surfaces; high chemical stabilities; abundant pores; special electrical, optical, thermal, and mechanical properties; and their often higher reactivities. These materials are currently generating a great deal of enthusiasm, and they have been used in large and diverse applications, such as those relating to sensors and biosensors, catalysis and biocatalysis, separation and purification techniques, acoustic and electrical insulation, transport gas or charged species, drug delivery, and electrochemistry. Porous carbons are an important class of porous materials that have grown rapidly in recent years. They have the advantages of a tunable pore structure, good physical and chemical stability, a variable specific surface, and the possibility of easy functionalization. This gives them new properties and allows them to improve their performance for a given application. This review paper intends to understand how porous carbons involve the removal of pollutants from water, e.g., heavy metal ions, dyes, and organic or inorganic molecules. First, a general overview description of the different precursors and the manufacturing methods of porous carbons is illustrated. The second part is devoted to reporting some applications such using porous carbon materials as an adsorbent. It appears that the use of porous materials at different scales for these applications is very promising for wastewater treatment industries.
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Hsini A, Naciri Y, Benafqir M, Ajmal Z, Aarab N, Laabd M, Navío JA, Puga F, Boukherroub R, Bakiz B, Albourine A. Facile synthesis and characterization of a novel 1,2,4,5-benzene tetracarboxylic acid doped polyaniline@zinc phosphate nanocomposite for highly efficient removal of hazardous hexavalent chromium ions from water. J Colloid Interface Sci 2020; 585:560-573. [PMID: 33158558 DOI: 10.1016/j.jcis.2020.10.036] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 10/09/2020] [Accepted: 10/11/2020] [Indexed: 02/06/2023]
Abstract
The present study describes the preparation of a novel 1,2,4,5-benzene tetracarboxylic acid doped polyaniline@zinc phosphate (BTCA-PANI@ZnP) nanocomposite via a facile two-step procedure. Thereafter, the as-prepared composite material adsorption characteristics for Cr(VI) ions removal were evaluated under batch adsorption. Kinetic approach studies for Cr(VI) removal, clearly demonstrated that the results of the adsorption process followed the pseudo second order and Langmuir models. The thermodynamic study indicated a spontaneous and endothermic process. Furthermore, higher monolayer adsorption was determined to be 933.88 mg g-1. In addition, the capability study regarding Cr(VI) ions adsorption over BTCA-PANI@ZnP nanocomposite clearly revealed that our method is suitable for large scale application. X-ray photoelectron spectroscopy (XPS) analysis confirmed Cr(VI) adsorption on the BTCA-PANI@ZnP surface, followed by its subsequent reduction to Cr(III). Thus, the occurrence of external mass transfer, electrostatic attraction and reduction phenomenon were considered as main mechanistic pathways of Cr(VI) ions removal. The superior adsorption performance of the material, the multi-dimensional characteristics of the surface and the involvement of multiple removal mechanisms clearly demonstrated the potential applicability of the BTCA-PANI@ZnP material as an effective alternative for the removal of Cr(VI) ions from wastewater.
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Affiliation(s)
- Abdelghani Hsini
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco.
| | - Yassine Naciri
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Mohamed Benafqir
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Zeeshan Ajmal
- College of Engineering, China Agricultural University, 100083 Beijing, PR China
| | - Nouh Aarab
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Mohamed Laabd
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - J A Navío
- Instituto de Ciencia de Materiales de Sevilla, Centro Mixto Universidad de Sevilla-CSIC, Américo Vespucio 49, 41092 Sevilla, Spain
| | - F Puga
- Instituto de Ciencia de Materiales de Sevilla, Centro Mixto Universidad de Sevilla-CSIC, Américo Vespucio 49, 41092 Sevilla, Spain
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 - IEMN, F-59000 Lille, France
| | - Bahcine Bakiz
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Abdallah Albourine
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco.
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Synthesis and characterization of arginine-doped polyaniline/walnut shell hybrid composite with superior clean-up ability for chromium (VI) from aqueous media: Equilibrium, reusability and process optimization. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113832] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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45
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Zeng S, Kan E. Chemical Activation of Forage Grass-Derived Biochar for Treatment of Aqueous Antibiotic Sulfamethoxazole. ACS OMEGA 2020; 5:13793-13801. [PMID: 32566845 PMCID: PMC7301585 DOI: 10.1021/acsomega.0c00983] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/22/2020] [Indexed: 05/27/2023]
Abstract
Chemically activated forage Bermudagrass-derived biochar (A-BC) was produced, characterized, and utilized for adsorption of sulfamethoxazole (SMX) in water for the first time. After NaOH activation, A-BC showed a higher surface area (1991.59 m2/g) and maximum adsorption capacity for SMX (425 mg SMX/g BC) than those of various biochars and commercial activated carbons. The detailed analysis for adsorption of SMX onto A-BC indicated the efficient sorption of SMX through π-π EDA and hydrophobic and hydrogen bond interactions. Additionally, the adsorption of SMX on A-BC was limited by pore and liquid film diffusions. The SMX adsorption on A-BC was found to be endothermic and spontaneous from thermodynamic studies. Furthermore, the highly efficient regeneration of SMX-saturated A-BC over multiple cycles was achieved by NaOH-driven desorption, indicating that the adsorption of SMX onto A-BC would have high potential for cost-effective solution for elimination of SMX from water.
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Affiliation(s)
- Shengquan Zeng
- Department
of Biological and Agricultural Engineering & Texas A&M AgriLife
Research Center, Texas A&M University, College Station, Texas 76401, United States
| | - Eunsung Kan
- Department
of Biological and Agricultural Engineering & Texas A&M AgriLife
Research Center, Texas A&M University, College Station, Texas 76401, United States
- Department
of Wildlife, Sustainability, and Ecosystem Sciences, Tarleton State University, Stephenville, Texas 76401, United States
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