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Li D, Xu Y, Zhang D. Impacts of controlled microwave field irradiation on o-cresol and p-cresol adsorption capability of activated carbon. ENVIRONMENTAL TECHNOLOGY 2024; 45:2776-2795. [PMID: 36919688 DOI: 10.1080/09593330.2023.2186273] [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: 11/03/2022] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
To access the feasibility of microwave in promoting adsorbability of carbonaceous adsorbents, microwave irradiation on activated carbon (AC) was conducted at powers of 400-800 W and duration of 10 min. Accordingly, the temperature rising of AC under microwave field were studied. Moreover, the alterations in physicochemical properties of AC and impacts on cresol isomer adsorption were investigated. Results indicated that the heating curve of AC displays the initial fast temperature rising stage and the final slow stage. Additionally, the bulk temperature at irradiation terminal increases with microwave power. The temperature rising further increases the pores with a diameter range of 1.00-6.00 nm of AC; it also increases the oxygenic functional groups of AC after irradiation at 400 W and 800 W, but decreases that of AC after irradiation at 640 W. The saturation adsorption capacity of o-cresol and p-cresol on the irradiated AC rises with elevated temperature. Additionally, the cresol isomer adsorption kinetics on the irradiated AC follows the Elovich model. The above-mentioned equilibrium and kinetics suggest that the cresol isomer adsorption on the irradiated AC is dominant by chemisorption. Finally, the optimum irradiation power for o-cresol and p-cresol adsorption is 800 W and 400 W, respectively, thereby fabricating AC with developed pores and abundant oxygenic functional groups. Accordingly, the saturation adsorption capacity of o-cresol and p-cresol reaches up to 111.11 mg·g-1 and 95.97 mg·g-1, respectively. Overall, microwave irradiation is a viable option to promote cresol isomer adsorption on AC.
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Affiliation(s)
- Dongyang Li
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, People's Republic of China
| | - Yi Xu
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, People's Republic of China
| | - Dengfeng Zhang
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, People's Republic of China
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Wang D, Xin S, Dong Y, Sun Z, Li X, Wang Q, Liu G, Liu Y, Xin Y. Heat and carbon co-activated persulfate to regenerate gentamicin-laden activated carbon: Performance, mechanism, and safety assessment. CHEMOSPHERE 2024; 349:140960. [PMID: 38104734 DOI: 10.1016/j.chemosphere.2023.140960] [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: 09/03/2023] [Revised: 12/07/2023] [Accepted: 12/12/2023] [Indexed: 12/19/2023]
Abstract
Activated carbon enriched with high concentrations of gentamicin (ACG) was generated in the production process of gentamicin. Inappropriate handling methods for ACG not only squanders carbon resource, but also seriously hinders achieving global carbon neutrality and hazardous to human health. In the present work, thermal and carbon co-activated persulfate method (TC-PS) was developed to regenerate ACG with degrading gentamicin. The results showed that ACG was effectively regenerated by TC-PS, restoring the adsorption performance for gentamicin. When the treatment temperature was 80 °C, the persulfate dosage was 20 mM and the initial pH was 3.0, the degradation efficiency of gentamicin reached 100%. The HO• and SO4•- were the major reactive species for gentamicin degradation. The possible degradation routes of gentamicin were proposed and the safety assessment indicated that the produced intermediates during the regeneration process of ACG by TC-PS have insignificant impact on the biological and ecological environment.
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Affiliation(s)
- Dong Wang
- Qingdao Engineering Research Center for Rural Environment, College of Resources and Environment, Qingdao Agricultural University, Qingdao, 266109, China
| | - Shuaishuai Xin
- Qingdao Engineering Research Center for Rural Environment, College of Resources and Environment, Qingdao Agricultural University, Qingdao, 266109, China.
| | - Yanan Dong
- Qingdao Engineering Research Center for Rural Environment, College of Resources and Environment, Qingdao Agricultural University, Qingdao, 266109, China
| | - Zhihao Sun
- Qingdao Engineering Research Center for Rural Environment, College of Resources and Environment, Qingdao Agricultural University, Qingdao, 266109, China
| | - Xiaofen Li
- Qingdao Engineering Research Center for Rural Environment, College of Resources and Environment, Qingdao Agricultural University, Qingdao, 266109, China
| | - Qianwen Wang
- Qingdao Engineering Research Center for Rural Environment, College of Resources and Environment, Qingdao Agricultural University, Qingdao, 266109, China
| | - Guocheng Liu
- Qingdao Engineering Research Center for Rural Environment, College of Resources and Environment, Qingdao Agricultural University, Qingdao, 266109, China
| | - Yucan Liu
- School of Civil Engineering, Yantai University, Yantai, 264005, China
| | - Yanjun Xin
- Qingdao Engineering Research Center for Rural Environment, College of Resources and Environment, Qingdao Agricultural University, Qingdao, 266109, China.
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Preparation and Self-Cleaning Performance of Carbon-Based Superhydrophobic Coatings Based on Non-Fluorine and Non-Toxic Corn Straw. Molecules 2021; 26:molecules26216401. [PMID: 34770810 PMCID: PMC8588144 DOI: 10.3390/molecules26216401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/11/2021] [Accepted: 10/18/2021] [Indexed: 11/17/2022] Open
Abstract
Recently, superhydrophobic surfaces with self-cleaning ability have attracted broad research interest due to their huge potential in daily lives and industrial applications, but the use of fluorinate, toxic organic compounds, and expensive feedstocks make superhydrophobic materials a great challenge in practical application. In this study, we present a facile dip-coating strategy to prepare superhydrophobic coatings with self-cleaning properties based on a non-fluorine and non-toxic system by using eco-friendly corn straw as raw material. During this process, aromatic carbon particles with rough hierarchical structures were prepared firstly via a simple fast pyrolysis process, followed by modification with polydimethylsiloxane (PDMS) in absolute ethanol solvent to decrease the surface free energy. Research shows these natural straw-derived carbons display a microstructure of several protrusions which is similar to the lotus leave’s and the resulted coatings exhibit an outstanding superhydrophobic property with a static water contact angle (WCA) of 151.67 ± 1.36 degrees. In addition, the as-prepared coatings possessed excellent self-cleaning performance: no contaminations were observed on the surfaces after examining with sludge, calcimine, water, and common liquids such as tea, milk, soybean milk as well as ink, which have a broad range of potential application in the field of antifouling, waterproofing, and anticorrosive.
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Tomul F, Arslan Y, Kabak B, Trak D, Kendüzler E, Lima EC, Tran HN. Peanut shells-derived biochars prepared from different carbonization processes: Comparison of characterization and mechanism of naproxen adsorption in water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 726:137828. [PMID: 32320866 DOI: 10.1016/j.scitotenv.2020.137828] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 03/07/2020] [Accepted: 03/07/2020] [Indexed: 05/09/2023]
Abstract
The ubiquitous appearance of nonsteroidal anti-inflammatory drugs (i.e., naproxen) in water bodies has raised enormous concerns among general public. Development of promising materials for eliminating such contaminants from water environment has attracted much attention in the scientific community. In this study, three (direct, post-treated and pre-treated) methods were developed to prepare biochars (800-PSB, 800-800-PSB, and 190-800-PSB, respectively) derived from the wastes of peanut shells (PS). They were thoroughly characterized by various important properties (i.e., porosity and superficial functional group) and applied to remove naproxen drug from water. Results indicated that although the pre- and post-treatments had a slight effect on the surface area of biochars (i.e., 571 m2/g for 800-PSB, 596 m2/g for 800-800-PSB, and 496 m2/g for 190-800-PSB), such treatments remarkably improved the adsorption capacity of biochar. The maximum adsorption capacity of biochar (obtained from the Langmuir model) towards naproxen in solution at 25 decreased in the following order: 800-800-PSB (324 mg/g) > 190-800-PSB (215 mg/g) > 800-PSB (105 mg/g). The thermodynamic study demonstrated that the adsorption was spontaneous and exothermic. Depending the preparation process, the contribution of each mechanism in the adsorption process was dissimilar. The overall adsorption mechanism was regarded as pore filling, π-π interaction, hydrogen bonding formations, n-π interaction, van der Waals force, and electrostatic attraction. Two methods used to identify the important role of π-π interaction were proposed herein. The possible desorption and reuse of laden-biochars were investigated by the chemical and thermal methods. The prepared biochar samples can serve as potential carbonaceous porous adsorbents for effectively removing naproxen from water media.
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Affiliation(s)
- Fatma Tomul
- Burdur Mehmet Akif Ersoy University, Faculty of Arts and Science, Chemistry Department, Burdur, Turkey
| | - Yasin Arslan
- Burdur Mehmet Akif Ersoy University, Faculty of Arts and Science, Nanoscience and Nanotechnology Department, Burdur, Turkey
| | - Burcu Kabak
- Burdur Mehmet Akif Ersoy University, Faculty of Arts and Science, Chemistry Department, Burdur, Turkey
| | - Diğdem Trak
- Burdur Mehmet Akif Ersoy University, Faculty of Arts and Science, Chemistry Department, Burdur, Turkey
| | - Erdal Kendüzler
- Burdur Mehmet Akif Ersoy University, Faculty of Arts and Science, Chemistry Department, Burdur, Turkey
| | - Eder C Lima
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Hai Nguyen Tran
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 70000, Vietnam; Faculty of Environment and Chemical Engineering, Duy Tan University, Da Nang, 550000, Vietnam.
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Mondal S, Elkamel A, Reinalda D, Wang K. Preparation and morphology study of carbon molecular sieve membrane derived from polyimide. CAN J CHEM ENG 2017. [DOI: 10.1002/cjce.22881] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Subrata Mondal
- Department of Chemical Engineering, Khalifa University of Science & Technology; P.O. Box 2533, Abu Dhabi United Arab Emirates
| | - Ali Elkamel
- Department of Chemical Engineering, Khalifa University of Science & Technology; P.O. Box 2533, Abu Dhabi United Arab Emirates
- Department of Chemical Engineering; University of Waterloo; Waterloo ON Canada
| | - Donald Reinalda
- Department of Chemical Engineering, Khalifa University of Science & Technology; P.O. Box 2533, Abu Dhabi United Arab Emirates
| | - Kean Wang
- Department of Chemical Engineering, Khalifa University of Science & Technology; P.O. Box 2533, Abu Dhabi United Arab Emirates
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Nautiyal P, Subramanian KA, Dastidar MG. Adsorptive removal of dye using biochar derived from residual algae after in-situ transesterification: Alternate use of waste of biodiesel industry. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2016; 182:187-197. [PMID: 27474901 DOI: 10.1016/j.jenvman.2016.07.063] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 07/18/2016] [Accepted: 07/18/2016] [Indexed: 05/21/2023]
Abstract
The primary aim of this present study was to utilize the residual biomass (DB) of Spirulina platensis algae, left after in-situ transesterification, for biochar preparation. This is a solid waste residue of biodiesel industry. The biochar (BC) prepared was examined for its capacity to adsorb congo red dye from the aqueous solution. The results were compared with other adsorbents used in the study such as commercial activated carbon (AC), original algae biomass (AB) and DB. The results of proximate analysis of BC showed the decrease in the percentage of volatile matter and an increase in fixed carbon content compared to DB. The physico-chemical properties of BC were studied using elemental analysis, SEM, FTIR and XRD techniques. The AC and BC adsorbents showed better performance in removing 85.4% and 82.6% of dye respectively from solution compared to AB (76.6%) and DB (78.1%). The effect of initial dye concentration, adsorbent dosage and pH of solution on the adsorption phenomena was studied by conducting the batch adsorption experiments. The highest specific uptake for biochar was observed at acidic pH of 2 with 0.2 g/100 ml of adsorbent dosage and 90 mg/l of initial concentration. The equilibrium adsorption data were fitted to three isotherms, namely Langmuir, Freundlich and Temkin. Freundlich model proved to show the best suited results with value of correlation coefficient of 99.12%. Thus, the application of DB for production of biochar as potential adsorbent supports sustainability of algae biodiesel.
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Affiliation(s)
- Piyushi Nautiyal
- Centre for Energy Studies, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - K A Subramanian
- Centre for Energy Studies, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - M G Dastidar
- Centre for Energy Studies, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
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Namasivayam C, Kavitha D. IR, XRD and SEM studies on the mechanism of adsorption of dyes and phenols by coir pith carbon from aqueous phase. Microchem J 2006. [DOI: 10.1016/j.microc.2005.07.002] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Sedigh MG, Jahangiri M, Liu PKT, Sahimi M, Tsotsis TT. Structural characterization of polyetherimide-based carbon molecular sieve membranes. AIChE J 2006. [DOI: 10.1002/aic.690461116] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Smarsly B, Antonietti M, Wolff T. Evaluation of the small-angle x-ray scattering of carbons using parametrization methods. J Chem Phys 2002. [DOI: 10.1063/1.1433463] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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12
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Characterization of porous carbons with high resolution αs-analysis and low temperature magnetic susceptibility. Adv Colloid Interface Sci 1998. [DOI: 10.1016/s0001-8686(98)00050-5] [Citation(s) in RCA: 140] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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