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Jia S, Chen G, Dai S, Gao Y, Wu Y, Qing Y, Zhang S, Xie J, Chen Q, Wang Y, Huang X, Su Z. Rational Design of Amorphous Carbon-Coated Laminar-Structured Wood for Integrating Repeatable Early Fire Detection and High-Temperature Affordable Flexible Pressure Sensing in One System. NANO LETTERS 2024; 24:5260-5269. [PMID: 38639406 DOI: 10.1021/acs.nanolett.4c00817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
High-temperature affordable flexible polymer-based pressure sensors integrated with repeatable early fire warning service are strongly desired for harsh environmental applications, yet their creation remains challenging. This work proposed an approach for preparing such advanced integrated sensors based on silver nanoparticles and an ammonium polyphosphate (APP)-modified laminar-structured bulk wood sponge (APP/Ag@WS). Such integrated sensors demonstrated excellent fire warning performance, including a short response time (minimum of 0.44 s), a long-lasting alarm time (>750 s), and reliable repeatability. Moreover, it achieved high-temperature affordable flexible pressure sensing that exhibited an almost unimpaired working range of 0-7.5 kPa and a higher sensitivity (in the low-pressure range, maximum to 226.03 kPa-1) after fire. The high stability was attributed to reliable structural elasticity, and the wood-derived amorphous carbon is capable of repeatable fire warnings. Finally, a Ag@APP/WS-based wireless fire alarm system that realized reliable house fire accident detection was demonstrated, showing great promise for smart firefighting application.
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Affiliation(s)
- Shanshan Jia
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Guoxi Chen
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Shijie Dai
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Yemei Gao
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Yiqiang Wu
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, P. R. China
| | - Yan Qing
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, P. R. China
| | - Shaobo Zhang
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Jiulong Xie
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Qi Chen
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Yangao Wang
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Xingyan Huang
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Zhiping Su
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, P. R. China
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Li L, Xie Y, Chen K, Zhou J, Wang M, Wang W, Zhang Z, Lu F, Du Y, Feng Y. Adsorption Characteristics of Ball Milling-Modified Chinese Medicine Residue Biochar Toward Quercetin. ACS OMEGA 2024; 9:11658-11670. [PMID: 38496992 PMCID: PMC10938329 DOI: 10.1021/acsomega.3c09016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/10/2024] [Accepted: 02/19/2024] [Indexed: 03/19/2024]
Abstract
Using traditional Chinese medicine residues as raw materials, different biochars (BC) were prepared through oxygen-limited pyrolysis at 300 °C, 500 °C, and 700 °C, and BC was ball-milled to produce ball-milled biochar (BMC). Using these adsorbents to adsorb the allelopathic autotoxic substance quercetin. The physical and chemical properties of various biochars derived from traditional Chinese medicine residues were characterized using the Brunauer-Emmett-Teller-N2 surface areas (BET), scanning electron microscopy (SEM), Fourier transform IR spectroscopy (FTIR), X-ray diffraction (XRD), and Raman spectroscopy (Raman). The study investigated the effects of the initial pH value, different humic acid concentrations, and multiple adsorption-desorption experiments on the removal of quercetin from the solution. The article discusses the adsorption mechanism of quercetin in solution by biochar from a traditional Chinese medicine residue, based on the results of adsorption kinetics and adsorption isotherm fitting. The findings indicate that increasing the pyrolysis temperature reduces the oxygen-containing functional groups of BC, enhances the aromaticity, and stabilizes the carbon structure. The pore structure of BMC becomes more complex after ball milling, which increases the number of oxygen-containing functional groups on the surface. Among the samples tested, BMC700 exhibits the best adsorption performance, with an adsorption capacity of 293.3 mg·g-1 at 318 K. The adsorption process of quercetin by BMC700 follows the pseudo-second-order kinetic model and the Freundlich adsorption isotherm model. The process is primarily a form of multimolecular layer adsorption. Its mechanism involves the pore-filling effect, hydrogen-bonding interaction, electrostatic interaction, and π-π coexistence, as well as the yoke effect. Additionally, they are highly recyclable and show promise in addressing continuous cropping issues.
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Affiliation(s)
- Lanqing Li
- College
of Resources and Environment Science, Anhui
Science and Technology University, Fengyang 233100, China
| | - Yue Xie
- College
of Resources and Environment Science, Anhui
Science and Technology University, Fengyang 233100, China
| | - Keyan Chen
- College
of Resources and Environment Science, Anhui
Science and Technology University, Fengyang 233100, China
| | - Jun Zhou
- College
of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Min Wang
- College
of Resources and Environment Science, Hubei
University, Wuhan 430062, China
| | - Wenqiang Wang
- College
of Resources and Environment Science, Anhui
Science and Technology University, Fengyang 233100, China
| | - Zhifan Zhang
- College
of Resources and Environment Science, Anhui
Science and Technology University, Fengyang 233100, China
| | - Fan Lu
- College
of Resources and Environment Science, Anhui
Science and Technology University, Fengyang 233100, China
| | - Yadong Du
- College
of Resources and Environment Science, Anhui
Science and Technology University, Fengyang 233100, China
| | - Yinghao Feng
- College
of Resources and Environment Science, Anhui
Science and Technology University, Fengyang 233100, China
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Du C, Hu T, Tang C, Liu Y, Deng J, Wang S, Yan S, Hu X. Rapid removal of Rhodamine B by phosphoric acid-modified activated carbon derived from rape straw. ENVIRONMENTAL TECHNOLOGY 2024:1-10. [PMID: 38312076 DOI: 10.1080/09593330.2024.2309483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 01/13/2024] [Indexed: 02/06/2024]
Abstract
A series of activated carbon was obtained from rape straw by chemical modification with phosphoric acid (H3PO4). The activated carbon was characterized and the adsorption capacity for Rhodamine B (RhB) from water was analysed. The SEM images showed that PRC-40 is a porous material and the BET analysis revealed a high surface area of 1720 m2/g with the coexistence of micropores and mesopores. The FTIR spectra determined the presence of oxygenated functional groups at its surface. The XPS spectra revealed that the content of carboxyl and metaphosphate groups in the modified activated carbon significantly increased, and this is conducive to the adsorption reaction. The XRD pattern showed the amorphous nature of carbon. The effect of significant parameters, such as the concentration of H3PO4 for modification and pH value, has been discussed. The kinetic data showed that the pseudo-second-order model is predominant. Besides, the Langmuir model was compatible well with the equilibrium data, and the maximum adsorption capacity of the activated carbon modified by H3PO4 was 2882.84 mg/g. Therefore, agricultural waste and rape straw can be used to prepare effective adsorbents for the application with the removal of dye from wastewater.
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Affiliation(s)
- Chengzhen Du
- College of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou, People's Republic of China
- Key Laboratory of Low-cost Rural Environmental Treatment Technology at Sichuan University of Arts and Science, Education Department of Sichuan Province, Sichuan University of Arts and Science, Dazhou, People's Republic of China
| | - Tao Hu
- College of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou, People's Republic of China
- Key Laboratory of Low-cost Rural Environmental Treatment Technology at Sichuan University of Arts and Science, Education Department of Sichuan Province, Sichuan University of Arts and Science, Dazhou, People's Republic of China
| | - Cheng Tang
- College of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou, People's Republic of China
- Key Laboratory of Low-cost Rural Environmental Treatment Technology at Sichuan University of Arts and Science, Education Department of Sichuan Province, Sichuan University of Arts and Science, Dazhou, People's Republic of China
| | - Yu Liu
- College of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou, People's Republic of China
- Key Laboratory of Low-cost Rural Environmental Treatment Technology at Sichuan University of Arts and Science, Education Department of Sichuan Province, Sichuan University of Arts and Science, Dazhou, People's Republic of China
| | - Jiaxi Deng
- College of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou, People's Republic of China
- Key Laboratory of Low-cost Rural Environmental Treatment Technology at Sichuan University of Arts and Science, Education Department of Sichuan Province, Sichuan University of Arts and Science, Dazhou, People's Republic of China
| | - Shuangchao Wang
- College of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou, People's Republic of China
- Key Laboratory of Low-cost Rural Environmental Treatment Technology at Sichuan University of Arts and Science, Education Department of Sichuan Province, Sichuan University of Arts and Science, Dazhou, People's Republic of China
| | - Shuang Yan
- College of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou, People's Republic of China
- Key Laboratory of Low-cost Rural Environmental Treatment Technology at Sichuan University of Arts and Science, Education Department of Sichuan Province, Sichuan University of Arts and Science, Dazhou, People's Republic of China
| | - Xiaoli Hu
- College of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou, People's Republic of China
- Key Laboratory of Low-cost Rural Environmental Treatment Technology at Sichuan University of Arts and Science, Education Department of Sichuan Province, Sichuan University of Arts and Science, Dazhou, People's Republic of China
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Shrestha D. Applications of functionalized porous carbon from bio-waste of Alnus nepalensis in energy storage devices and industrial wastewater treatment. Heliyon 2023; 9:e21804. [PMID: 38027968 PMCID: PMC10651512 DOI: 10.1016/j.heliyon.2023.e21804] [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: 06/29/2023] [Revised: 10/07/2023] [Accepted: 10/28/2023] [Indexed: 12/01/2023] Open
Abstract
This research investigates the utility of functionalized porous carbon (FPC), derived from the waste wood of Alnus nepalensis. It demonstrates FPC's dual suitability as a versatile component for energy storage systems, specifically supercapacitors, and its impressive capacity to adsorb malachite green (MG) dye from industrial wastewater. The synthesis of FPC occurred through a controlled two-step process: initial activation of wood powder with H3PO4, followed by carbonization at 400 °C for 3 h in a tube furnace. To comprehensively evaluate the material's attributes, multiple analytical methods were employed: Brunauer-Emmet-Teller (BET) analysis, Transmission Electron Microscopy (TEM) imaging, X-ray Diffraction (XRD) analysis, Raman spectroscopy, and Fourier Transform Infrared Spectroscopy (FTIR) spectroscopy. The prepared FPC exhibited desirable characteristics essential for achieving electrochemical performances and adsorption of dyes as well. TEM revealed voids within the material's structure, while BET confirmed high porosity with an active surface area of 1498 m2/g, a pore volume of 1.2 cm³/g, and a pore size of 4.6 nm featuring a harmonious presence of both micropores and mesopores. XRD and Raman spectroscopy confirmed FPC's amorphous state, and FTIR indicated oxygenated functional groups. As a supercapacitor electrode material, FPC demonstrated a specific capacitance of 156.3 F/g at 1A/g current density, an energy density of 5.1 Wh/Kg, a power density of 183.6 W/kg, and enduring cycling stability, retaining 98.4 % performance after 1000 charge-discharge cycles at 3A/g current density. In terms of dye adsorption, FPC exhibited remarkable efficiency. At a pH of 10.5 for MG dye, 0.030g of FPC displayed peak adsorption capacity, removing 95.6 % of 20 ppm MG within 2 min and an even more impressive 99.6 % within 6 min. These findings confirm FPC's potential from Alnus nepalensis as an outstanding supercapacitor electrode material and a rapid, efficient adsorbent for MG removal from industrial wastewater. This research suggests promising applications in energy storage and environmental remediation.
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Affiliation(s)
- Dibyashree Shrestha
- Department of Chemistry, Patan Multiple Campus, Tribhuvan University, Lalitpur, 44613, Nepal
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5
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Aggelopoulos CA. Nanostructured Materials and Advanced Processes for Application in Water Purification. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:654. [PMID: 36839021 PMCID: PMC9960090 DOI: 10.3390/nano13040654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Water pollution is a major environmental problem that has a significant impact on human and animal health and the ecosystem [...].
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Affiliation(s)
- Christos A Aggelopoulos
- Laboratory of Cold Plasma and Advanced Techniques for Improving Environmental Systems, Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas (FORTH/ICE-HT), 26 504 Patras, Greece
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Nishchakova AD, Bulushev DA, Trubina SV, Stonkus OA, Shubin YV, Asanov IP, Kriventsov VV, Okotrub AV, Bulusheva LG. Highly Dispersed Ni on Nitrogen-Doped Carbon for Stable and Selective Hydrogen Generation from Gaseous Formic Acid. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:545. [PMID: 36770506 PMCID: PMC9921425 DOI: 10.3390/nano13030545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/23/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
Ni supported on N-doped carbon is rarely studied in traditional catalytic reactions. To fill this gap, we compared the structure of 1 and 6 wt% Ni species on porous N-free and N-doped carbon and their efficiency in hydrogen generation from gaseous formic acid. On the N-free carbon support, Ni formed nanoparticles with a mean size of 3.2 nm. N-doped carbon support contained Ni single-atoms stabilized by four pyridinic N atoms (N4-site) and sub-nanosized Ni clusters. Density functional theory calculations confirmed the clustering of Ni when the N4-sites were fully occupied. Kinetic studies revealed the same specific Ni mass-based reaction rate for single-atoms and clusters. The N-doped catalyst with 6 wt% of Ni showed higher selectivity in hydrogen production and did not lose activity as compared to the N-free 6 wt% Ni catalyst. The presented results can be used to develop stable Ni catalysts supported on N-doped carbon for various reactions.
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Affiliation(s)
- Alina D. Nishchakova
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
| | - Dmitri A. Bulushev
- Boreskov Institute of Catalysis SB RAS, 5 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
| | - Svetlana V. Trubina
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
| | - Olga A. Stonkus
- Boreskov Institute of Catalysis SB RAS, 5 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
| | - Yury V. Shubin
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
| | - Igor P. Asanov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
| | - Vladimir V. Kriventsov
- Boreskov Institute of Catalysis SB RAS, 5 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
| | - Alexander V. Okotrub
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
| | - Lyubov G. Bulusheva
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
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7
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Yu Y, Zhang L, Gao X, Feng Y, Wang H, Lei C, Yan Y, Liu S. Research Progress in the Synthesis of Carbon Dots and Their Application in Food Analysis. BIOSENSORS 2022; 12:1158. [PMID: 36551125 PMCID: PMC9775108 DOI: 10.3390/bios12121158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/30/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
Food safety is connected to public health, making it crucial to protecting people's health. Food analysis and detection can assure food quality and effectively reduce the entry of harmful foods into the market. Carbon dots (CDs) are an excellent choice for food analysis and detection attributable to their advantages of good optical properties, water solubility, high chemical stability, easy functionalization, excellent bleaching resistance, low toxicity, and good biocompatibility. This paper focuses on the optical properties, synthesis methods, and applications of CDs in food analysis and detection, including the recent advances in food nutritional composition analysis and food quality detection, such as food additives, heavy metal ions, foodborne pathogens, harmful organic pollutants, and pH value. Moreover, this review also discusses the potentially toxic effects, current challenges, and prospects of CDs in basic research and applications. We hope that this review can provide valuable information to lay a foundation for subsequent research on CDs and promote the exploration of CDs-based sensing for future food detection.
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Affiliation(s)
- Yuan Yu
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology, Shaoxing 312000, China
| | - Lili Zhang
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xin Gao
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yuanmiao Feng
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Hongyuan Wang
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Caihong Lei
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology, Shaoxing 312000, China
| | - Yanhong Yan
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Shuiping Liu
- College of Textile and Clothing, Yancheng Institute of Technology, Yancheng 224051, China
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Zhang M, Huang K, Ding Y, Wang X, Gao Y, Li P, Zhou Y, Guo Z, Zhang Y, Wu D. N, S Co-Doped Carbons Derived from Enteromorpha prolifera by a Molten Salt Approach: Antibiotics Removal Performance and Techno-Economic Analysis. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12234289. [PMID: 36500911 PMCID: PMC9737878 DOI: 10.3390/nano12234289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 06/12/2023]
Abstract
N, S co-doped bio-carbons with a hierarchical porous structure and high surface area were prepared using a molten salt method and by adopting Entermorpha prolifera (EP) as a precursor. The structure and composition of the bio-carbons could be manipulated by the salt types adopted in the molten salt assisted pyrolysis. When the carbons were used as an activating agent for peroxydisulfate (PDS) in SMX degradation in the advanced oxidation process (AOP), the removal performance in the case of KCl derived bio-carbon (EPB-K) was significantly enhanced compared with that derived from NaCl (EPB-Na). In addition, the optimized EPB-K also demonstrated a high removal rate of 99.6% in the system that used local running water in the background, which proved its excellent application potential in real water treatment. The degradation mechanism study indicated that the N, S doping sites could enhance the surface affinity with the PDS, which could then facilitate 1O2 generation and the oxidation of the SMX. Moreover, a detailed techno-economic assessment suggested that the price of the salt reaction medium was of great significance as it influenced the cost of the bio-carbons. In addition, although the cost of EPB-K was higher (USD 2.34 kg-1) compared with that of EPB-Na (USD 1.72 kg-1), it was still economically competitive with the commercial active carbons for AOP water treatment.
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Affiliation(s)
- Mengmeng Zhang
- School of Business, Henan Normal University, Xinxiang 453007, China
| | - Kexin Huang
- Key Laboratory of Green Chemistry Medias and Reactions, Ministry of Education, School of Environment, Henan Normal University, Xinxiang 453007, China
| | - Yi Ding
- School of Business, Henan Normal University, Xinxiang 453007, China
| | - Xinyu Wang
- Key Laboratory of Green Chemistry Medias and Reactions, Ministry of Education, School of Environment, Henan Normal University, Xinxiang 453007, China
| | - Yingli Gao
- School of Business, Henan Normal University, Xinxiang 453007, China
| | - Pengfei Li
- School of Business, Henan Normal University, Xinxiang 453007, China
| | - Yi Zhou
- Key Laboratory of Green Chemistry Medias and Reactions, Ministry of Education, School of Environment, Henan Normal University, Xinxiang 453007, China
| | - Zheng Guo
- College of Textiles, Zhongyuan University of Technology, Zhengzhou 451191, China
| | - Yi Zhang
- College of Textiles, Zhongyuan University of Technology, Zhengzhou 451191, China
| | - Dapeng Wu
- Key Laboratory of Green Chemistry Medias and Reactions, Ministry of Education, School of Environment, Henan Normal University, Xinxiang 453007, China
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Zhou L, Zhong MQ, Wang T, Liu JX, Mei M, Chen S, Li JP. Study on the Pyrolysis and Adsorption Behavior of Activated Carbon Derived from Waste Polyester Textiles with Different Metal Salts. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7112. [PMID: 36295183 PMCID: PMC9605055 DOI: 10.3390/ma15207112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/07/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
In this study, the effects of the catalysis of heavy metals on the pyrolysis of waste polyester textiles (WPTs) and the adsorption behaviors of the pyrolysis products of WPTs for Cr(VI) were explored. TG-DTG analysis indicated that the metal ions catalyzed the pyrolysis process by reducing the temperature of the decomposition of WPTs. The surface morphology and pore structure of the carbons were analyzed using SEM and BET. The results demonstrated that Zn-AC possessed the largest specific surface area of 847.87 m2/g. The abundant acidic functional groups on the surface of the activated carbons were proved to be involved in the Cr(VI) adsorption process via FTIR analysis. Cr(VI) adsorption experiments indicated that the adsorption process was more favorable at low pH conditions, and the maximum adsorption capacities of Zn-AC, Fe-AC, and Cu-AC for Cr(VI) were 199.07, 136.25, and 84.47 mg/g, respectively. The FTIR and XPS analyses of the carbons after Cr(VI) adsorption, combined with the adsorption kinetics and isotherm simulations, demonstrated that the adsorption mechanism includes pore filling, an electrostatic effect, a reduction reaction, and complexation. This study showed that metal salts catalyze the pyrolysis processes of WPTs, and the activated carbons derived from waste polyester textiles are promising adsorbents for Cr(VI) removal.
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Affiliation(s)
- Lun Zhou
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Meng-Qi Zhong
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Teng Wang
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
- Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
| | - Jing-Xin Liu
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
- Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
| | - Meng Mei
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
- Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
| | - Si Chen
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
- Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
| | - Jin-Ping Li
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
- Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
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10
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Yang WD, Wang JX, Wu YT, Chang HS, Ko HH. Preparatory Conditions Optimization and Characterization of Hierarchical Porous Carbon from Seaweed as Carbon-Precursor Using a Box-Behnken Design for Application of Supercapacitor. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5748. [PMID: 36013884 PMCID: PMC9416258 DOI: 10.3390/ma15165748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/16/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
This study has developed an environmentally friendly, simple, and economical process by utilizing seaweed as a carbon precursor to prepare a hierarchical porous carbon for the application of a supercapacitor. In the carbonization process, the design of experiment (DOE) technology is used to obtain the optimal preparatory conditions with the best electrochemical properties for the electrode materials of supercapacitors. Without using strong acid and alkali solution of the green process, NaCl is used as the pore structure proppant of seaweed (SW) for carbonization to obtain hierarchical porous carbon material to improve the pore size distribution and surface area of the material. In the experiment of SW activation, the interaction between factors has been explored by the response surface methodology (RSM) and Box-Behnken design, and the optimal conditions are found. The activated carbon with the specific surface area of 603.7 m2 g-1 and its capacitance reaching 110.8 F g-1 is successfully prepared. At a current density of 1 A g-1, the material still retains 95.4% of the initial capacitance after 10,000 cycles of stability testing. The hierarchical porous carbon material prepared by the design of experiment planning this green process has better energy storage properties than supercapacitors made of traditional carbon materials.
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Affiliation(s)
- Wein-Duo Yang
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 807, Taiwan
| | - Jing-Xuan Wang
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 807, Taiwan
| | - Yu-Tse Wu
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung City 807, Taiwan
| | - Hsun-Shuo Chang
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung City 807, Taiwan
| | - Horng-Huey Ko
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung City 807, Taiwan
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Activated carbon and its hybrid composites with manganese (IV) oxide as effectual electrode materials for high performance supercapacitor. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103946] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Fabrication of Nano Iron Oxide–Modified Biochar from Co-Hydrothermal Carbonization of Microalgae and Fe(II) Salt for Efficient Removal of Rhodamine B. NANOMATERIALS 2022; 12:nano12132271. [PMID: 35808107 PMCID: PMC9268311 DOI: 10.3390/nano12132271] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 06/23/2022] [Accepted: 06/28/2022] [Indexed: 01/27/2023]
Abstract
Dye adsorption by magnetic modified biochar has now received growing interest due to its excellent adsorption performance and facile separation for recycling. In this study, nano iron oxide–modified biochar was fabricated via the successive hydrothermal-pyrolyzing method using Chlorella vulgaris (Cv) and FeSO4·7H2O as raw materials, and its adsorption on Rhodamine B (RhB) in aqueous solution was studied. Multiple techniques such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer–Emmett–Teller (BET), vibrating sample magnetometry (VSM) and X-ray photoelectron spectroscopy (XPS) were employed to comprehensively characterize the structure, morphology and physicochemical properties of the adsorbent. The as-synthesized nano iron oxide–modified biochar (CBC-Fe(II)) exhibited a large surface area (527.6 m2/g) and high magnetic saturation value (13.7 emu/g) to facilitate magnetic separation. Compared with CBC and CBC-Fe(III), CBC-Fe(II) exhibited superior adsorption ability towards RhB in aqueous solution, with a maximum adsorption capacity of 286.4 mg/g. The adsorption process of RhB onto CBC-Fe(II) was well described by the pseudo-second-order kinetic model and Langmuir isotherm model, indicating monolayer chemisorption behaviors for the adsorption system. Facile preparation, great adsorption performance and magnetic recovery properties endow CBC-Fe(II) to be a promising adsorbent for dye removal.
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Comparative Evaluation of the Adsorption Performance of Citric Acid-Treated Peels of Trapa natans and Citrullus lanatus for Cationic Dyes Degradation from Water. J CHEM-NY 2022. [DOI: 10.1155/2022/1109376] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Various chemicals were explored in chemical combinations with two selected agrowastes in order to optimize, enhance, and improve their biosorption potential for the optimal and effective eradication of noxious, carcinogenic, and malignant cationic and basic dyes from wastewater. In this project, environmentally safe, economic, inexpensive, and widely available peels of Trapa natans (TP) and Citrullus lanatus (CP) were collected, dried, and pretreated with citric acid, revealing promising results. FT-IR and SEM characterizations of chemically changed biosorbents (C-TP and C-CP) have evidenced the presence of more secondary adsorption sites on their surfaces. These acid-modified biosorbents were employed to eliminate the hazardous and toxic basic dyes such as Rhodamine B (RAD) and Brilliant Green Dye (BLG) in batch mode processing. The Langmuir model was best fitted to equilibrium experimental data as compared to Freundlich and Temkin isothermal mathematical models with Qmax of 15.63 and 27.55 mg/g for RAD using C-TP and C-CP, respectively, whereas, for BLG on C-TP and C-CP, it was 128 and 189 mg/g, respectively. Therefore, the mechanism is related to chelation and ion exchange modes between adsorbate molecules and adsorbent surfaces, leading to homogeneous and monolayer adsorption and following pseudo-2nd-order kinetics in the best way. Thermodynamic parameters such as ΔG0, ΔS0, ΔH0, and ΔE0 are determined statistically for the adsorption performance of both novel chemically mutant biosorbents, which reflect that biosorption mechanisms are exothermic as well as spontaneous.
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