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Chen Y, Wang Y, Liu B, Zhang C, Sun D, Liu H, Zhou W. Room-temperature sulfur doped NiMoO 4 with enhanced conductivity and catalytic activity for efficient hydrogen evolution reaction in alkaline media. J Colloid Interface Sci 2024; 664:469-477. [PMID: 38484515 DOI: 10.1016/j.jcis.2024.03.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 03/04/2024] [Accepted: 03/11/2024] [Indexed: 04/07/2024]
Abstract
Transition metal oxides have been acknowledged for their exceptional water splitting capabilities in alkaline electrolytes, however, their catalytic activity is limited by low conductivity. The introduction of sulfur (S) into nickel molybdate (NiMoO4) at room temperature leads to the formation of sulfur-doped NiMoO4 (S-NiMoO4), thereby significantly enhancing the conductivity and facilitating electron transfer in NiMoO4. Furthermore, the introduction of S effectively modulates the electron density state of NiMoO4 and facilitates the formation of highly active catalytic sites characterized by a significantly reduced hydrogen absorption Gibbs free energy (ΔGH*) value of -0.09 eV. The electrocatalyst S-NiMoO4 exhibits remarkable catalytic performance in promoting the hydrogen evolution reaction (HER), displaying a significantly reduced overpotential of 84 mV at a current density of 10 mA cm-2 and maintaining excellent durability at 68 mA cm-2 for 10 h (h). Furthermore, by utilizing the anodic sulfide oxidation reaction (SOR) instead of the sluggish oxygen evolution reaction (OER), the assembled electrolyzer employing S-NiMoO4 as both the cathode and anode need merely 0.8 V to achieve 105 mA cm-2, while simultaneously producing hydrogen gas (H2) and S monomer. This work paves the way for improving electron transfer and activating active sites of metal oxides, thereby enhancing their HER activity.
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Affiliation(s)
- Yuke Chen
- Institute for Advanced Interdisciplinary Research (iAIR), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Yijie Wang
- Institute for Advanced Interdisciplinary Research (iAIR), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Baishan Liu
- Zhejiang Viersin Advanced Materials Co., Ltd, 6 Donggang Road, Haiyan Economic Development Zone, PR China
| | - Congcong Zhang
- Institute for Advanced Interdisciplinary Research (iAIR), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Dehui Sun
- Institute for Advanced Interdisciplinary Research (iAIR), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
| | - Hong Liu
- Institute for Advanced Interdisciplinary Research (iAIR), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China; State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, PR China.
| | - Weijia Zhou
- Institute for Advanced Interdisciplinary Research (iAIR), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
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2
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Zhao D, Zheng H, Huang C, Chang G, Li Z, Zhao H. Microstructure engineering in sulfuretted coal tar pitch by varying the Cross-Link state for enhanced sodium storage. J Colloid Interface Sci 2024; 660:845-858. [PMID: 38277841 DOI: 10.1016/j.jcis.2024.01.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/17/2023] [Accepted: 01/13/2024] [Indexed: 01/28/2024]
Abstract
Sulfur (S) is an efficient dopant to enhance the sodium storage of carbon, yet the conventional in-situ/post treatments cause unstable S configuration or lower S content, and hence unsatisfied electrochemical performance. Herein, we investigate sulfurization at various cross-link state of coal tar pitch (CTP) (pristine, coke, and carbonized states), and the microstructure of the products (SCTP). Experimental and calculational results reveal that introducing S in the coke state of CTP is essential for achieving abundant and stable C-Sx-C bonds between carbon layers. Moreover, this innovative strategy not only achieves a high S content, but also avoids the liquid carbonization, resulting in a hierarchically porous structure with a small particle size. As a result, the SCTP delivers a sodium storage capacity of 318 mA h g-1 at 0.1 A g-1 after 200th cycle, and the capacity maintains 207 mA h g-1 with capacity retention of 99 % after 1000th cycle at 2.0 A g-1, in half-cells. Moreover, the sample shows a considerable discharge capacity of 328 mA h g-1anode at 0.05 A g-1 in full-cells. Consequently, this approach offers a novel pathway for large-scale production of thermoplastic-derived carbons in battery industry.
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Affiliation(s)
- Dan Zhao
- State Key Laboratory of Clean and Efficient Coal Utilization, College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Huiling Zheng
- State Key Laboratory of Clean and Efficient Coal Utilization, College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Cheng Huang
- State Key Laboratory of Clean and Efficient Coal Utilization, College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Gaobo Chang
- State Key Laboratory of Clean and Efficient Coal Utilization, College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Zhong Li
- State Key Laboratory of Clean and Efficient Coal Utilization, College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
| | - Hanqing Zhao
- State Key Laboratory of Clean and Efficient Coal Utilization, College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
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Dai H, Zhao Z, Wang K, Meng F, Lin D, Zhou W, Chen D, Zhang M, Yang D. Regulating electronic structure of Fe single-atom site by S/N dual-coordination for efficient Fenton-like catalysis. J Hazard Mater 2024; 465:133399. [PMID: 38163411 DOI: 10.1016/j.jhazmat.2023.133399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/10/2023] [Accepted: 12/27/2023] [Indexed: 01/03/2024]
Abstract
The activity of single-atom catalysts in peroxymonosulfate activation process is bound up with the local electronic state of metal center. However, the large electronegativity of N atoms in Metal-N4 restricts the electron transfer between center metal atom and peroxymonosulfate. Herein, we constructed Fe-SN-C catalyst by incorporating S atom in the first coordination sphere of Fe single-atom site (Fe-S1N3) for Fenton-like catalysis. The Fe-SN-C with a low valent Fe is found to exhibit excellent catalytic activity for bisphenol A degradation, and the corresponding rate constant reaches 0.405 min-1, 11.9-fold higher than the original Fe-N-C. Besides, the Fe-SN-C/PMS system exhibits ideal catalytic stability under the effect of wide pH range and background substrates by the fast generation of high-valent Fe species. Experimental results and theoretical calculations reveal that the dual coordination of S and N atoms notably increases the local electron density of Fe atoms and electron filling in eg orbital, causing a d band center shifting close to the fermi level and thereby optimizes the activation energy for peroxymonosulfate decomposition via Fe 3d-O 2p orbital interaction. This work provides further development of promising SACs for the efficient activation of peroxymonosulfate based on direct regulation of the coordination environment of active center metal atoms.
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Affiliation(s)
- Huiwang Dai
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Zhejiang Ecological Civilization Academy, Anji, Zhejiang 310058, China
| | - Zhendong Zhao
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Kun Wang
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Fanxu Meng
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Daohui Lin
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Zhejiang Ecological Civilization Academy, Anji, Zhejiang 310058, China
| | - Wenjun Zhou
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Zhejiang Ecological Civilization Academy, Anji, Zhejiang 310058, China.
| | - Dingjiang Chen
- Zhejiang Ecological Civilization Academy, Anji, Zhejiang 310058, China; Institute of Soil and Water Resources and Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Ming Zhang
- Department of Environment Engineering, China Jiliang University, Hangzhou 310018, China
| | - Dongye Yang
- Zhejiang Huanneng Environmental Technology Co. Ltd., Hangzhou, Zhejiang 310012, China
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Zheng A, Xie S, Li K, Zhang C, Shi H. Performance and mechanism investigation on the enhanced photocatalytic removal of atrazine on S-doped g-C 3N 4. Chemosphere 2024; 347:140663. [PMID: 37952824 DOI: 10.1016/j.chemosphere.2023.140663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/21/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
Developing efficient method for removing low-concentration atrazine, a poisonous chlorinated triazine herbicide with poor biodegradability, was an important measure to control its risk. In this work, highly efficient photocatalytic oxidation of atrazine was achieved on S-doped g-C3N4 (S-g-C3N4). Approximate 99.6% of atrazine was removed in 2 h with a reaction rate constant of 2.76 h-1, nearly 2.44 times that on g-C3N4. The mechanism investigation indicated the improved photocatalytic performance of S-g-C3N4 could be attributed to the enlarged specific surface area, extended light absorption as well as the accelerated separation of the photogenerated charge carriers, which was brought about by the successful doping of sulfur in g-C3N4. Meanwhile, the influence of sulfur doping on the generation and contribution of different reactive species in atrazine removal were also elucidated. It revealed that compared with g-C3N4, the more positive valence band potential of S-g-C3N4 was beneficial to produce more singlet oxygen, which could react synergistically with the superoxide radicals, leading to the improved atrazine removal efficiency. The S-g-C3N4 based photocatalytic system also showed preferential photocatalytic oxidation capability in removing other triazine pesticides compared with 3-chlorophenol (3-CP). The potential applicability of the S-g-C3N4 based photocatalytic system in removing atrazine in high salty water was also investigated, which exhibited superior anti-interference ability towards virous coexistent ions. This work will provide essential and fundamental information for establishing efficient photocatalytic system for triazine type pollutants in waters.
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Affiliation(s)
- Anqi Zheng
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Siqi Xie
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Kewang Li
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Chaojie Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Huijie Shi
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China.
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5
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Liu C, Feng X, Zhao Y, Fan H, Zheng R, Wang Z, Arandiyan H, Wang Y, Bhargava SK, Liu Y, Sun H, Shao Z. Enhancing potassium ions adsorption on mesoporous carbon spheres with abundant internal surface via engineering sulfur doping sites towards superior rate capability. J Colloid Interface Sci 2023; 652:1325-1337. [PMID: 37659304 DOI: 10.1016/j.jcis.2023.08.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/15/2023] [Accepted: 08/25/2023] [Indexed: 09/04/2023]
Abstract
Mesoporous carbon spheres (MCSs) show great potential for using as high-performance anodes in potassium-ion batteries (PIBs). Design and synthesis of MCSs with suitable multiscale structures and heteroatom doping or co-doping in MCSs are successfully employed to optimize the ion and electron transportation, however, it is still a challenge to explore MCS-based anodes with satisfactory potassium storage performance. In this work, we report novel S-doped MCS samples with abundant internal surfaces for potassium storage. The S doping sites are controlled during the synthesis, and the effect of different doping sites on the potassium storage is systematically studied. It is found that S doping between the carbon layers enlarges interlayer spacing and facilitates potassium ion adsorption. Consequently, the optimized sample shows an excellent rate capability of 144 mAh/g at 5.0 A/g, and a high reversible specific capacity of 325 mAh/g after 100 cycles at 0.1 A/g with a capacity retention of 91.2%. The important role of element doping sites on ion adsorption and ion storage performance is confirmed by theoretical investigations. Controlling the doping sites in MCSs provides a new approach to designing high-performance electrodes for energy storage and conversion applications.
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Affiliation(s)
- Chang Liu
- School of Materials Science and Engineering, Northeastern University, Shenyang 110004, PR China
| | - Xiangping Feng
- School of Materials Science and Engineering, Northeastern University, Shenyang 110004, PR China
| | - Yutong Zhao
- School of Materials Science and Engineering, Northeastern University, Shenyang 110004, PR China
| | - Huilin Fan
- School of Materials Science and Engineering, Northeastern University, Shenyang 110004, PR China
| | - Runguo Zheng
- School of Materials Science and Engineering, Northeastern University, Shenyang 110004, PR China; School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China; Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China
| | - Zhiyuan Wang
- School of Materials Science and Engineering, Northeastern University, Shenyang 110004, PR China; School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China; Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China
| | - Hamidreza Arandiyan
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia; Centre for Applied Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Melbourne, Vic 3000, Australia
| | - Yuan Wang
- Institute for Frontier Materials, Deakin University, Melbourne, Vic 3125, Australia.
| | - Suresh K Bhargava
- Centre for Applied Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Melbourne, Vic 3000, Australia
| | - Yanguo Liu
- School of Materials Science and Engineering, Northeastern University, Shenyang 110004, PR China; School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China; Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China.
| | - Hongyu Sun
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China.
| | - Zongping Shao
- WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, WA 6845, Australia.
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6
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Jin F, Yin H, Feng R, Niu W, Zhang W, Liu J, Du A, Yang W, Liu Z. Charge transfer and vacancy engineering of Fe 2O 3 nanoparticle catalysts for highly selective N 2 reduction towards NH 3 synthesis. J Colloid Interface Sci 2023; 647:354-363. [PMID: 37267798 DOI: 10.1016/j.jcis.2023.05.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/11/2023] [Accepted: 05/17/2023] [Indexed: 06/04/2023]
Abstract
The development of electrocatalysts for N2 reduction reaction (NRR) is significant for scalable and renewable NH3 synthesis, but calls for a technology innovation to overcome the specific problems of low efficiency and poor selectivity. Herein, we prepare a core-shell nanostructure by coating polypyrrole (PPy) onto sulfur-doped iron oxide nanoparticles (denoted as S-Fe2O3@PPy) as the highly selective and durable electrocatalysts for NRR under ambient conditions. Sulfur doping and PPy coating remarkably improve the charge transfer efficiency of S-Fe2O3@PPy, and the interactions between PPy and Fe2O3 nanoparticles produce abundant oxygen vacancies as active sites for NRR. This catalyst achieves an NH3 production rate of 22.1 μg h-1 mgcat-1 and a very-high Faradic efficiency of 24.6%, surpassing other Fe2O3 based NRR catalysts. Density functional theory calculations show that the S-coordinated iron site can successfully activate the N2 molecule and optimize the energy barrier during the reduction process, resulting in a small theoretical limiting potential.
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Affiliation(s)
- Fuhao Jin
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, 308 Ningxia Road, Qingdao 266071, PR China
| | - Hanqing Yin
- School of Chemistry and Physics and Centre for Materials Science, Queensland University of Technology, Gardens Point Campus, Brisbane, 4001, Australia
| | - Ru Feng
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, 308 Ningxia Road, Qingdao 266071, PR China
| | - Wei Niu
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, 308 Ningxia Road, Qingdao 266071, PR China
| | - Wanting Zhang
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, 308 Ningxia Road, Qingdao 266071, PR China
| | - Jingquan Liu
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, 308 Ningxia Road, Qingdao 266071, PR China
| | - Aijun Du
- School of Chemistry and Physics and Centre for Materials Science, Queensland University of Technology, Gardens Point Campus, Brisbane, 4001, Australia
| | - Wenrong Yang
- School of Life and Environmental Sciences, Deakin University, 75 Pigdons Road, Geelong, VIC 3216, Australia
| | - Zhen Liu
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, 308 Ningxia Road, Qingdao 266071, PR China.
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Wu YF, Hsiao YC, Liao CH, Hsu CS, Yougbaré S, Lin LY. Novel design of Sulfur-doped nickel cobalt layered double hydroxide and polypyrrole nanotube composites from zeolitic imidazolate Framework-67 as efficient active material of battery supercapacitor hybrids. J Colloid Interface Sci 2022; 628:540-52. [PMID: 35940141 DOI: 10.1016/j.jcis.2022.07.154] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/19/2022] [Accepted: 07/25/2022] [Indexed: 11/24/2022]
Abstract
Nickel and cobalt layered double hydroxide (NiCo-LDH) has large specific surface area and interlayer spacing, multiple redox states and high ion-exchange capability, but poor electrical conductivity, severe agglomerations and structural defect restrict energy storage ability of NiCo-LDH as active materiel of battery supercapacitor hybrids (BSH). In this study, it is the first time to design sulfur-doped NiCo-LDH and polypyrrole nanotubes composites (NiCo-LDH-S/PNTs) from zeolitic imidazolate framework-67 (ZIF-67) as the efficient active material of BSH using electrospinning and hydrothermal processes. Effects of sulfur doping amounts are investigated. The one-dimensional hollow polypyrrole decorated with NiCo-LDH-S sheets with high aspect ratio provides straight charge-transfer routes and abundant contacts with electrolyte. The highest specific capacitance (CF) of 1936.3 F/g (specific capacity of 322.8 mAh/g) is achieved for the NiCo-LDH-S/PNTs with sulfur doping amount of 7% at 10 mV/s. The BSH comprising graphene LDH negative electrode and NiCo-LDH-S/PNTs positive electrode shows the maximum energy density of 16.28 Wh/kg at 650 W/kg. The CF retention of 74% and Coulombic efficiency of 90% are also achieved after 8000 charge/discharge cycles.
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Vakili F, Rashidi A, Taghavi L, Mansouri N. Conversion of biomass to N, S co-doped porous graphene as an adsorbent for mercury vapor removal: optimization and DFT study. J Environ Health Sci Eng 2021; 19:1569-1582. [PMID: 34900289 PMCID: PMC8617130 DOI: 10.1007/s40201-021-00712-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 07/12/2021] [Indexed: 06/14/2023]
Abstract
UNLABELLED This study is devoted to optimization synthesis conditions of the N, S co-doped porous graphene via a single step thermal chemical activation process from agricultural wastes such as cabbage waste. To this end, the response surface method (RSM) was considered, and the synthesis parameters were varied in specific ranges. By doing so, the optimum conditions in terms of the best performance in mercury removal was determined which was characterized by TEM, SEM, BET, XRD, XPS, and FTIR techniques. The chosen key process parameters were Activation agent to carbon precursor ratio (A: KOH/C), Reaction time (B: Time), Activation temperature (C: Temperature), and (Dopant to carbon precursor ratio (D: Dopant/C). Each parameter was investigated in 3 levels with lower and upper bounds being A: 2-6; B:30-90 min.; C: 600-800 ˚C; D:2-10. The optimum conditions of the process were determined to be as: A: 2; B: 30 min.; C: 600 ˚C and D: 2. The optimized sample was prepared in repeated runs with reproducible results with Hg vapor adsorption capacity of 2100 µg/g at 40 ˚C and 2266 µg/g at 90 ˚C. In addition to the experiments, DFT calculations were also carried out which elucidated the positive role of N and S co-doping in improving the mercury adsorption intensity. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s40201-021-00712-y.
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Affiliation(s)
- Forouzan Vakili
- Department of Environmental Science, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Alimorad Rashidi
- Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), West Entrance Blvd., Olympic Village, P.O. Box 14857-33111, Tehran, Iran
| | - Lobat Taghavi
- Department of Environmental Science, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Nabiollah Mansouri
- Department of Environmental Engineering, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Qi F, Zeng Z, Wen Q, Huang Z. Enhanced organics degradation by three-dimensional (3D) electrochemical activation of persulfate using sulfur-doped carbon particle electrode: The role of thiophene sulfur functional group and specific capacitance. J Hazard Mater 2021; 416:125810. [PMID: 33882388 DOI: 10.1016/j.jhazmat.2021.125810] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 03/25/2021] [Accepted: 03/30/2021] [Indexed: 06/12/2023]
Abstract
For further enhancing the electrochemical oxidation performance, sulfur-doped carbon particle electrode was employed in the three-dimensional (3D) electro-assisted activation of persulfate process (ACS/PS/EC). Herein, an in situ S-doped activated carbon (ACS) was prepared and applied as the particle electrode as well as catalyst in ACS/PS/EC system. Several carbon particle electrodes with different annealing temperature were prepared and characterized via EA, BET, XPS and Raman spectra. Cyclic voltammetry (CV) was perform to obtain the specific capacitance and investigate the interfacial electron transfer of ACS particle. The results of comparative experiments showed significant synergy between electric and catalytic activations of PS. Especially, the as-prepared sample treated at 850 °C (ACS-850) exhibited an outstanding catalytic performance, and the phenol degradation rate was greatly improved by nearly 100% with the application of electric field. By comparing of several carbon particle electrodes with different functional groups and specific capacitances, it is revealed that thiophene sulfur functional group is the mainly active site for both electric and catalytic activation of PS, and the specific capacitance acts as assistant factor. Quenching experiments proved that the 3D electro-assisted activation of PS proceeded through both radical and non-radical pathway. Possible mechanism for ACS/PS/EC electrochemical process was proposed.
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Affiliation(s)
- Fei Qi
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Zequan Zeng
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China.
| | - Qin Wen
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Zhanggen Huang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
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Vakili F, Rashidi A, Taghavi L, Mansouri N. Single-step synthesis of N, S co-doped waste-derived nanoporous carbon sorbent for mercury vapor removal. Environ Sci Pollut Res Int 2021; 28:17265-17274. [PMID: 33394405 DOI: 10.1007/s11356-020-12075-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 12/13/2020] [Indexed: 06/12/2023]
Abstract
As well known, mercury is a toxic trace element due to its bioaccumulation and volatility which results in severe effects in health of ecosystems and humans' life. Herein, for the first time, the synthesis of a N and S dual-doped waste-derived graphene-like nanoporous carbon via a facile and single-step route is presented and its capability in mercury vapor removal from gas streams is investigated. To prepare a modified adsorbent, thiourea was utilized as the doping agent to induce nitrogen and sulfur dopants into the nanoporous carbon structure derived from pyrolysis of cabbage (Capitat. var. Brassica oleracea) waste from Brassicaceae family as an inherently S, N-containing precursor, which is produced in noticeable amounts annually. The prepared adsorbents were characterized through FTIR, XRD, BET, SEM, TEM, and CHNOS techniques to get an insight into the structure, morphology, and chemical characteristics of the adsorbents. The structural characterization revealed the successful synthesis of a graphene-like nanoporous carbon sheet which was doped with nitrogen and sulfur atoms. The S, N dual-doped graphene-like carbon nanosheets showed an enhanced activity toward mercury vapor adsorption. For this end, two different dopant to carbon source ratios were considered and it was found that the higher dopant amount results in a better performance. From the adsorption experiments, it was revealed that the pristine graphene-like carbon had a less performance in mercury removal (71%) compared with doped samples (more than 90%) which shows the necessity of reinforcement and surface modification of as mentioned cabbage base graphene. However, the best sample which was prepared with the dopant to carbon ratio of 10 had a performance of 94.5% removal (2100 μg/g) compared with 89% (1980 μg/g) for mercury removal by the sulfur-impregnated commercial activated carbon.
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Affiliation(s)
- Forouzan Vakili
- Department of environmental science, Faculty of natural resources and environment, Science and research branch, Islamic Azad University, Tehran, Iran
| | - Alimorad Rashidi
- Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), West Entrance Blvd., Olympic Village, P.O. Box 14857-33111, Tehran, Iran.
| | - Lobat Taghavi
- Department of environmental science, Faculty of natural resources and environment, Science and research branch, Islamic Azad University, Tehran, Iran
| | - Nabiollah Mansouri
- Department of environmental Engineering, Faculty of natural resources and environment, Science and research branch, Islamic Azad University, Tehran, Iran
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Jia Y, Xiong X, Wang D, Duan X, Sun K, Li Y, Zheng L, Lin W, Dong M, Zhang G, Liu W, Sun X. Atomically Dispersed Fe-N 4 Modified with Precisely Located S for Highly Efficient Oxygen Reduction. Nanomicro Lett 2020; 12:116. [PMID: 34138133 PMCID: PMC7770948 DOI: 10.1007/s40820-020-00456-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 02/28/2020] [Indexed: 05/28/2023]
Abstract
Immobilizing metal atoms by multiple nitrogen atoms has triggered exceptional catalytic activity toward many critical electrochemical reactions due to their merits of highly unsaturated coordination and strong metal-substrate interaction. Herein, atomically dispersed Fe-NC material with precise sulfur modification to Fe periphery (termed as Fe-NSC) was synthesized, X-ray absorption near edge structure analysis confirmed the central Fe atom being stabilized in a specific configuration of Fe(N3)(N-C-S). By enabling precisely localized S doping, the electronic structure of Fe-N4 moiety could be mediated, leading to the beneficial adjustment of absorption/desorption properties of reactant/intermediate on Fe center. Density functional theory simulation suggested that more negative charge density would be localized over Fe-N4 moiety after S doping, allowing weakened binding capability to *OH intermediates and faster charge transfer from Fe center to O species. Electrochemical measurements revealed that the Fe-NSC sample exhibited significantly enhanced oxygen reduction reaction performance compared to the S-free Fe-NC material (termed as Fe-NC), showing an excellent onset potential of 1.09 V and half-wave potential of 0.92 V in 0.1 M KOH. Our work may enlighten relevant studies regarding to accessing improvement on the catalytic performance of atomically dispersed M-NC materials by managing precisely tuned local environments of M-Nx moiety.
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Affiliation(s)
- Yin Jia
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Xuya Xiong
- Interdisciplinary Nanoscience Center (INANO), Sino-Danish Center for Education and Research (SDC), Aarhus University, 8000, Aarhus C, Denmark
| | - Danni Wang
- Shandong University of Science and Technology, Electrical Engineering and Automation, Tsingtao, 266590, People's Republic of China
| | - Xinxuan Duan
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Kai Sun
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
- Department of Chemical Engineering, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK
| | - Yajie Li
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Wenfeng Lin
- Department of Chemical Engineering, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK
| | - Mingdong Dong
- Interdisciplinary Nanoscience Center (INANO), Sino-Danish Center for Education and Research (SDC), Aarhus University, 8000, Aarhus C, Denmark
| | - Guoxin Zhang
- Shandong University of Science and Technology, Electrical Engineering and Automation, Tsingtao, 266590, People's Republic of China.
| | - Wen Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
| | - Xiaoming Sun
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
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Zhu J, Chen R, Zeng Z, Su C, Zhou K, Mo Y, Guo Y, Zhou F, Gao J, Li L. Acetone adsorption capacity of sulfur-doped microporous activated carbons prepared from polythiophene. Environ Sci Pollut Res Int 2019; 26:16166-16180. [PMID: 30972669 DOI: 10.1007/s11356-019-05051-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 04/01/2019] [Indexed: 06/09/2023]
Abstract
Sulfur-doped activated carbons (SACs) with high sulfur content and large specific surface area were synthesized from polythiophene for acetone removal. The sulfur content of carbons (3.10-8.43 at.%) could be tunable by adjusting the activation temperature. The BET surface area and pore volume of the obtained samples were 916-2020 m2 g-1 and 0.678-1.100 cm3 g-1, with a significant proportion of microporosity (up to 84% and 72% for BET surface area and pore volume, respectively). The resulting SACs show a superior acetone adsorption capacity (i.e., 716.4 mg g-1 at 15 °C and 705 mg g-1 at 25 °C for SAC700). In terms of the adsorption behavior of acetone on the activated carbons, compared to the Langmuir model, the Langmuir-Freundlich model showed better agreement with the adsorption amount. The results reveal that the surface area and micropore volume are the key factors for acetone adsorption, while the sulfur-doped functional groups, especially oxidized sulfur functional groups, can enhance the acetone adsorption capacity at a certain low pressure. Temperature programmed desorption (TPD) experiments were performed to get desorption activation energy of acetone on SAC samples, and the results ranged from 23.54 to 38.71 kJ mol-1. The results of the molecular simulation show that the introduction of sulfur element can increase the binding energy between acetone molecule and carbon surface, and the tri-oxidized sulfur (sulfonic acid) functional group has the highest binding energy of - 0.4765 eV. Graphical abstract.
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Affiliation(s)
- Junchao Zhu
- School of Energy Science and Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Ruofei Chen
- School of Energy Science and Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Zheng Zeng
- School of Energy Science and Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Changqing Su
- School of Energy Science and Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Ke Zhou
- School of Energy Science and Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Yamian Mo
- School of Energy Science and Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Yang Guo
- School of Energy Science and Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Fan Zhou
- School of Energy Science and Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Jie Gao
- School of Energy Science and Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Liqing Li
- School of Energy Science and Engineering, Central South University, Changsha, 410083, Hunan, China.
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Li F, Lu L, Gao D, Wang M, Wang D, Xia Z. Rapid synthesis of three-dimensional sulfur-doped porous graphene via solid-state microwave irradiation for protein removal in plasma sample pretreatment. Talanta 2018; 185:528-36. [PMID: 29759236 DOI: 10.1016/j.talanta.2018.04.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 04/01/2018] [Accepted: 04/07/2018] [Indexed: 12/24/2022]
Abstract
In this work, we prepared three-dimensional sulfur-doped porous graphene (3D-SPG) via solid-state microwave method and first introduced it to plasma sample pretreatment as adsorbent for the removal of proteins. The efficient heating effect of solid-state microwave irradiation endowed the as-prepared 3D-SPG with large specific surface area, porous structures and sulfur-doped conjugated π electron surface, thus producing an outstanding adsorbent for proteins adsorption. The adsorption behavior of 3D-SPG towards proteins was explored using bovine serum albumin (BSA) as the model protein and several kinetic models and isotherm models were employed to describe the adsorption process. The results indicated that BSA was adsorbed onto 3D-SPG in a monolayer manner with high adsorption capacity, and chemisorption and intraparticle diffusion was the rate-controlling step in proteins adsorption process. By applying 3D-SPG as adsorbent to remove proteins in real rat plasma, we found that 3D-SPG solid phase extraction (SPE) gained exceedingly high protein removal efficiency compared with other plasma pretreatment methods, suggesting that 3D-SPG SPE could effectively prevent the deterioration of column performance and decrease the interference caused by matrix effect in the follow-up analysis. Furthermore, in comparison with the tandem mass spectra results between 3D-SPG SPE and methanol precipitation, 3D-SPG SPE demonstrated the ability to extract the protein-binding metabolites which usually could not be extracted by methanol precipitation. This ability made 3D-SPG SPE of great value in untargeted metabolomics profiling, because 3D-SPG SPE could be a complementary method to methanol precipitation to improve the coverage of metabolites.
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