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Han C, Xie J, Shi Q, Liang L, Yang T, He S. Capturing Cu 2+ and recycling spent Cu-adsorbents as catalyst for eliminating Rhodamine B: reactivity and mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:110352-110362. [PMID: 37783993 DOI: 10.1007/s11356-023-29942-3] [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: 07/16/2023] [Accepted: 09/13/2023] [Indexed: 10/04/2023]
Abstract
The thorny problem of adsorption is the disposing of spent adsorbent. In this manuscript, the exhaust adsorbent of efficient capture Cu(II) over ZSM-5 that supported zero-valent iron (nZVI) was reused as a catalyst for eliminating Rhodamine B (RhB). Batch experiments were used to evaluate the removal performance of Cu2+ and RhB. The results demonstrated that the Cu2+ adsorption process obeyed pseudo-second-order kinetics, and the adsorption performance was dependent on solution pH. The maximum adsorption capacity at the optimal pH 4.0 was 375.9 mg/g; equilibrium was reached rapidly within 35 min. From XPS, the reduction-oxidation between Fe0 and Cu2+ was occurred in the adsorption process, and Fe2+, Fe3+, and Cu0 was formed. In the recycling experiments, RhB was removed by the spent Cu adsorbent, with the removal performance being dependent on the initial Cu concentration, in the order of 5 mg/L > 20 mg/L > 0 mg/L > 100 mg/L > 500 mg/L. RhB removal also improved with increasing H2O2 concentration. More than 99.9% of the RhB was degraded within 8 min using 1.75 mM H2O2, which was a large improvement over the previously used catalyst. The hydroxyl radical was found to be the main free radical responsible for RhB degradation.
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Affiliation(s)
- Caiyun Han
- Guangxi Colleges and Universities Key Laboratory of Environmental-friendly Materials and New Technology for Carbon Neutralization, Guangxi Key Laboratory of Advanced Structural Materials and Carbon Neutralization, School of Materials and Environment, Guangxi Minzu University, Nanning, 530105, China.
| | | | - Qin Shi
- Guangxi Colleges and Universities Key Laboratory of Environmental-friendly Materials and New Technology for Carbon Neutralization, Guangxi Key Laboratory of Advanced Structural Materials and Carbon Neutralization, School of Materials and Environment, Guangxi Minzu University, Nanning, 530105, China
| | - Liying Liang
- Guangxi Colleges and Universities Key Laboratory of Environmental-friendly Materials and New Technology for Carbon Neutralization, Guangxi Key Laboratory of Advanced Structural Materials and Carbon Neutralization, School of Materials and Environment, Guangxi Minzu University, Nanning, 530105, China
| | - Ting Yang
- Guangxi Colleges and Universities Key Laboratory of Environmental-friendly Materials and New Technology for Carbon Neutralization, Guangxi Key Laboratory of Advanced Structural Materials and Carbon Neutralization, School of Materials and Environment, Guangxi Minzu University, Nanning, 530105, China
- Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming, 650093, People's Republic of China
| | - Sufang He
- Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming, 650093, People's Republic of China
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Dobrzyńska J, Jankovská Z, Matějová L. Chicken Cartilage-Derived Carbon for Efficient Xylene Removal. Int J Mol Sci 2023; 24:10868. [PMID: 37446041 DOI: 10.3390/ijms241310868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
Chicken cartilage was used for the first time as a raw material for the microwave-assisted synthesis of biochar and activated carbon. Various microwave absorbers, i.e., commercial active carbon, scrap tyres, silicon carbide, and chicken bone-derived biochar, as well as various microwave powers, were tested for their effect on the rate of pyrolysis and the type of products formed. Biochars synthesised under 400 W in the presence of scrap tyres and chicken bone-derived biochar were activated with KOH and K2CO3 with detergent to produce activated carbon with a highly developed porous structure that would be able to effectively adsorb xylene vapours. All carbons were thoroughly characterised (infrared spectroscopy, X-ray fluorescence spectrometry, nitrogen adsorption/desorption, Raman spectroscopy, proximate and ultimate analysis) and tested as xylene sorbents in dynamic systems. It was found that the activation causes an increase of up to 1042 m2·g-1 in the specific surface area, which ensures the sorption capacity of xylene about 300 mg·g-1. Studies of the composition of biogas emitted during pyrolysis revealed that particularly valuable gaseous products are formed when pyrolysis is carried out in the presence of silicon carbide as a microwave absorber.
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Affiliation(s)
- Joanna Dobrzyńska
- Department of Analytical Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, M. C. Sklodowska Sq. 3, 20-031 Lublin, Poland
- Institute of Environmental Technology, Centre for Energy and Environmental Technologies, VŠB-Technical University of Ostrava, 17. listopadu 15/2172, 708 00 Ostrava, Czech Republic
| | - Zuzana Jankovská
- Institute of Environmental Technology, Centre for Energy and Environmental Technologies, VŠB-Technical University of Ostrava, 17. listopadu 15/2172, 708 00 Ostrava, Czech Republic
| | - Lenka Matějová
- Institute of Environmental Technology, Centre for Energy and Environmental Technologies, VŠB-Technical University of Ostrava, 17. listopadu 15/2172, 708 00 Ostrava, Czech Republic
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Neelgund GM, Jimenez EA, Ray RL, Kurkuri MD. Facilitated Adsorption of Mercury(II) and Chromium(VI) Ions over Functionalized Carbon Nanotubes. TOXICS 2023; 11:545. [PMID: 37368645 DOI: 10.3390/toxics11060545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 06/15/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023]
Abstract
By considering the importance of water and its purity, herein, a powerful adsorbent has been developed for the adsorption of two toxic contaminants that commonly exist in water, viz., divalent mercury and hexavalent chromium. The efficient adsorbent, CNTs-PLA-Pd, was prepared by covalent grafting polylactic acid to carbon nanotubes and subsequent deposition of palladium nanoparticles. The CNTs-PLA-Pd could adsorb Hg(II), and Cr(VI) entirely exists in water. The adsorption rate for Hg(II) and Cr(VI) was rapid at initial stage, followed by gradual decrease, and attained the equilibrium. The Hg(II) and Cr(VI) adsorption was perceived within 50 min and 80 min, respectively with CNTs-PLA-Pd,. Further, experimental data for Hg(II) and Cr(VI) adsorption was analyzed, and kinetic parameters were estimated using pseudo-first and second-order models. The adsorption process of Hg(II) and Cr(VI) followed the pseudo-second-order kinetics, and the rate-limiting step in the adsorption was chemisorption. The Weber-Morris intraparticle pore diffusion model revealed that the Hg(II) and Cr(VI) adsorption over CNTs-PLA-Pd occurs through multiple phases. The experimental equilibrium parameters for the Hg(II) and Cr(VI) adsorption were estimated by Langmuir, Freundlich, and Temkin isotherms models. All three models were well suited and demonstrated that Hg(II) and Cr(VI) adsorption over CNTs-PLA-Pd transpires through monolayer molecular covering and chemisorption.
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Affiliation(s)
- Gururaj M Neelgund
- Department of Chemistry, Prairie View A&M University, Prairie View, TX 77446, USA
| | - Erica A Jimenez
- Department of Chemistry, Prairie View A&M University, Prairie View, TX 77446, USA
| | - Ram L Ray
- College of Agriculture and Human Sciences, Prairie View A&M University, Prairie View, TX 77446, USA
| | - Mahaveer D Kurkuri
- Centre for Research in Functional Materials (CRFM), JAIN (Deemed-to-be University), Jain Global Campus, Bengaluru 562 112, Karnataka, India
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Yusuff AS, Lala MA, Thompson-Yusuff KA, Babatunde EO. ZnCl2-modified eucalyptus bark biochar as adsorbent: preparation, characterization and its application in adsorption of Cr(VI) from aqueous solutions. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1016/j.sajce.2022.08.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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Mallik AK, Moktadir MA, Rahman MA, Shahruzzaman M, Rahman MM. Progress in surface-modified silicas for Cr(VI) adsorption: A review. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127041. [PMID: 34488103 DOI: 10.1016/j.jhazmat.2021.127041] [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: 06/19/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Various toxic chemicals are discharging to the environment due to rapid industrialization and polluting soil, water, and air causing numerous diseases including life-threatening cancer. Among these pollutants, Cr(VI) or hexavalent chromium is one of the most carcinogenic and toxic contaminants hostile to human health and other living things. Therefore, along with other contaminants, the removal of Cr(VI) efficiently is very crucial to keep our environment neat and clean. On the other hand, silica has a lot of room to modify its surfaces as it is available with various sizes, shapes, pore sizes, surface areas etc. and the surface silanol groups are susceptible to design and prepare adsorbents for Cr(VI). This review emphases on the progress in the development of different types of silica-based adsorbents by modifying the surfaces of silica and their application for the removal of Cr(VI) from wastewater. Toxicity of Cr(VI), different silica surface modification processes, and removal techniques are also highlighted. The adsorption capacities of the surface-modified silica materials with other parameters are discussed extensively to understand how to select the best condition, silica and modifiers to achieve optimum removal performance. The adsorption mechanisms of various adsorbents are also discussed. Finally, future prospects are summarized and some suggestions are given to enhance the adsorption capacities of the surface-modified silica materials.
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Affiliation(s)
- Abul K Mallik
- Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka 1000, Bangladesh.
| | - Md Abdul Moktadir
- Institute of Leather Engineering and Technology, University of Dhaka, Dhaka 1209, Bangladesh.
| | - Md Ashiqur Rahman
- Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka 1000, Bangladesh.
| | - Md Shahruzzaman
- Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka 1000, Bangladesh.
| | - Mohammed Mizanur Rahman
- Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka 1000, Bangladesh; Institute of Leather Engineering and Technology, University of Dhaka, Dhaka 1209, Bangladesh.
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ZININA O, MERENKOVA S, REBEZOV M. Analysis of modern approaches to the processing of poultry waste and by-products: prospects for use in industrial sectors. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.03222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | | | - Maksim REBEZOV
- Vasily Matveyevich Gorbatov Federal Research Center for Food Systems, Russian Federation
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Dobrosz-Gómez I, Gómez-García MÁ, Rynkowski JM. Enhanced adsorption and desorption of Cr(VI) from aqueous solution using hydrous Ce 1–xZr xO 2: Isotherm, kinetics and thermodynamic evaluation. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2020.1845716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Izabela Dobrosz-Gómez
- Grupo de Investigación en Procesos Reactivos Intensificados con Separación y Materiales Avanzados, PRISMA, Departamento de Física y Química, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Colombia, Manizales, Caldas, Colombia
| | - Miguel-Ángel Gómez-García
- Grupo de Investigación en Procesos Reactivos Intensificados con Separación y Materiales Avanzados, PRISMA, Departamento de Ingeniería Química, Facultad de Ingeniería y Arquitectura, Universidad Nacional de Colombia, Manizales, Caldas, Colombia
| | - Jacek Michał Rynkowski
- Institute of General and Ecological Chemistry, Lodz University of Technology, Łódź, Poland
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Penido ES, Oliveira MAD, Sales ALR, Ferrazani JC, Magalhães F, Bianchi ML, Melo LCA. Biochars produced from various agro-industrial by-products applied in Cr(VI) adsorption-reduction processes. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2021; 56:1387-1396. [PMID: 34747687 DOI: 10.1080/10934529.2021.2000814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
This study aimed to reuse different agro-industrial by-products (poultry litter, pig manure, sewage sludge and coffee husk) for biochar production and to evaluate their Cr(VI) removal capacities in aqueous medium. The biochars showed different morphologies with porous structures. The percentages of Cr(VI) removal from solution were higher in acid medium (pH = 2), reaching values up to 87%. For all biochars, Cr(VI) removal occurs via both adsorption and reduction, being a rapid (30 min) process, which fits best to the pseudo-second order kinetic model. The biochars, especially from coffee husk, were able to reduce up to 20% of Cr(VI) to Cr(III). The maximum Cr(VI) removal capacities ranged from 10.86 mg g-1 (sewage sludge biochar) to 18.52 mg g-1 (coffee husk biochar). Therefore, the production of biochars from the agro-industrial by-products using the same experimental conditions in one single study is important to compare the Cr(VI) removal capacities from different biomasses. Thus, this study explored the corresponding raw material without the need of further treatment. Biochars showed potential for environmental applications considering Cr(VI)-polluted environments. It is hoped to provide basis to future studies using real wastewater samples.
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Affiliation(s)
| | | | | | | | - Fabiano Magalhães
- Department of Chemistry, Federal University of Lavras, Lavras, Brazil
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Wang C, Xie J, Zheng M, Zhu J, Shi C. Preparation of Mesoporous Biochar from Cornstalk for the Chromium (VI) Elimination by Using One-Step Hydrothermal Carbonation. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2021; 2021:3418887. [PMID: 34650824 PMCID: PMC8510798 DOI: 10.1155/2021/3418887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/17/2021] [Accepted: 09/16/2021] [Indexed: 06/13/2023]
Abstract
Hydrothermal carbon (HTC) was prepared by the one-step hydrothermal method for Cr (VI) removal from wastewater, which was considered a "green chemistry" method. The specific surface area (SBET) of HTC was 85 m2/g with the pore size in range of 2.0-24.0 nm. FT-IR spectra analysis showed that the HTC had abundant chemical surface functional groups. The influence of adsorption parameters such as pH, HTC dosage, Cr (VI) concentration, and contact time on the removal efficiency of Cr (VI) had been investigated. When the initial concentration was 50 mg/L, pH = 6, amount of adsorbent was 0.2 g/50 ml, and adsorption time was 90 min; the Cr (VI) absorbed rate of HTC reached 98%. Batch adsorption experiments indicated that Cr (VI) adsorption data of HTC fitted the Freundlich isothermal and pseudo-second-order kinetic models. Overall, our findings provide a promising material in treatment of Cr (VI)-rich wastewater and give a clear picture of its application, which is worthy of further study.
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Affiliation(s)
- Chao Wang
- Department of Materials Science and Engineering, Anhui University of Science & Technology, Huainan, China
| | - Jun Xie
- Department of Materials Science and Engineering, Anhui University of Science & Technology, Huainan, China
| | - Mingdong Zheng
- Department of Materials Science and Engineering, Anhui University of Science & Technology, Huainan, China
| | - Jinbo Zhu
- Department of Materials Science and Engineering, Anhui University of Science & Technology, Huainan, China
| | - Changliang Shi
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, China
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Jang EH, Pack SP, Kim I, Chung S. A systematic study of hexavalent chromium adsorption and removal from aqueous environments using chemically functionalized amorphous and mesoporous silica nanoparticles. Sci Rep 2020; 10:5558. [PMID: 32221311 PMCID: PMC7101345 DOI: 10.1038/s41598-020-61505-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 02/27/2020] [Indexed: 11/08/2022] Open
Abstract
We report on the synthesis and characterization of highly monodisperse amorphous silica nanoparticles (ASNs) and mesoporous silica nanoparticles (MSNs) with particle sizes of 15-60 nm. We demonstrate adsorption of Cr(VI) ions on amino-functionalized ASNs (NH2-ASNs) and MSNs (NH2-MSNs) and their removal from aqueous environments and show the specific surface area (SSA) of NH2-MSNs is four times as larger as that of NH2-ASNs and that more than 70% of the total SSA of NH2-MSNs is due to the presence of nanopores. Analyses of Cr(VI) adsorption kinetics on NH2-ASNs and NH2-MSNs exhibited relatively rapid adsorption behavior following pseudo-second order kinetics as determined by nonlinear fitting. NH2-ASNs and NH2-MSNs exhibited significantly higher Cr(VI) adsorption capacities of 34.0 and 42.2 mg·g-1 and removal efficiencies of 61.9 and 76.8% than those of unfunctionalized ASNs and MSNs, respectively. The Langmuir model resulted in best fits to the adsorption isotherms of NH2-ASNs and NH2-MSNs. The adsorption of Cr(VI) on NH2-ASNs and NH2-MSNs was an endothermic and spontaneous process according to the thermodynamic analyses of temperature-dependent adsorption isotherms. The removal efficiencies of NH2-ASNs and NH2-MSNs exhibited a moderate reduction of less than 25% of the maximum values after five regeneration cycles. Furthermore, NH2-MSNs were also found to reduce adsorbed Cr(VI) into less harmful Cr(III).
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Affiliation(s)
- Eun-Hye Jang
- School of Chemical and Biomolecular Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 46241, South Korea
- Department of Polymer Science and Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 46241, South Korea
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-Ro, Sejong, 30019, South Korea
| | - Il Kim
- Department of Polymer Science and Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 46241, South Korea
| | - Sungwook Chung
- School of Chemical and Biomolecular Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 46241, South Korea.
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