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Singh G, Maria Ruban A, Kaur H, Patel V, Ismaili AA, Bahadur R, Vinu A. High Surface Area Nanoporous Carbon-Ceria Composites for CO 2 Capture and Enzyme-Mimicking Action. Chem Asian J 2024; 19:e202400994. [PMID: 39344861 DOI: 10.1002/asia.202400994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2024] [Revised: 09/24/2024] [Accepted: 09/29/2024] [Indexed: 10/01/2024]
Abstract
Nanoporous carbon-based composites with metal oxides have great potential for various applications including adsorption and sensing owing to their multiple properties. However, the fabrication of these nanocomposites without affecting these multiple properties is challenging. Herein, a series of nanoporous carbon-based nanocomposites with cerium nanoparticles are synthesized through a combination of high-temperature carbonization and ex-situ modification with cerium precursor. The prepared nanocomposites have appreciable surface areas, pore volumes, tunable pore sizes, and a controlled amount of surface nanoceria, all of which can be precisely controlled by varying the amount of KOH and cerium nitrate hexahydrate used for nanoceria generation. The porous carbon PC-3 was used for modification using nanoceria and the modified materials showed higher performance for the intended applications. The CO2 adsorption per unit surface of PC-3 (2.4 μmol m-2) increased to 2.9 μmol m-2 in Ce-PC-3-0.5. Furthermore, the composite materials displayed higher heat of adsorption (Qst) than bare materials, indicating stronger interactions with CO2. Interestingly, the least amount of nanoceria (CePC-3-0.25) was effective in enhancing the superoxide dismutase (SOD) and catalase activity.
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Affiliation(s)
- Gurwinder Singh
- Global Innovative Centre for Advanced Nanomaterials (GICAN), School of Engineering, College of Science, Engineering, and Environment (CESE), The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Ajanya Maria Ruban
- Global Innovative Centre for Advanced Nanomaterials (GICAN), School of Engineering, College of Science, Engineering, and Environment (CESE), The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Harleen Kaur
- Global Innovative Centre for Advanced Nanomaterials (GICAN), School of Engineering, College of Science, Engineering, and Environment (CESE), The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Vaishwik Patel
- Global Innovative Centre for Advanced Nanomaterials (GICAN), School of Engineering, College of Science, Engineering, and Environment (CESE), The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Arsh A Ismaili
- Global Innovative Centre for Advanced Nanomaterials (GICAN), School of Engineering, College of Science, Engineering, and Environment (CESE), The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Rohan Bahadur
- Global Innovative Centre for Advanced Nanomaterials (GICAN), School of Engineering, College of Science, Engineering, and Environment (CESE), The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Ajayan Vinu
- Global Innovative Centre for Advanced Nanomaterials (GICAN), School of Engineering, College of Science, Engineering, and Environment (CESE), The University of Newcastle, Callaghan, NSW, 2308, Australia
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Zhang X, Zhang K, Shi Y, Xiang H, Yang W, Zhao F. Surface engineering of multifunctional nanostructured adsorbents for enhanced wastewater treatment: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 920:170951. [PMID: 38367722 DOI: 10.1016/j.scitotenv.2024.170951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/20/2024] [Accepted: 02/11/2024] [Indexed: 02/19/2024]
Abstract
Rapid urbanization and industrialization have significantly contributed to the contamination of the environment through the discharge of wastewater containing various pollutants. The development of high-performance surface functional nanostructured adsorbents is of wide interest for researchers. Therefore, we explore the significant advancements in this field, focusing on the efficiency of nanostructured materials, as well as their nanocomposites, for wastewater treatment applications. The crucial role of surface modification in enhancing the affinity of these nanostructured adsorbents towards targeted pollutants, addressing a key bottleneck in the utilization of nanomaterials for wastewater treatment, was specifically emphasized. In addition to highlighting the advantages of surface engineering in enhancing the efficiency of nanostructured adsorbents, this review also provides a comprehensive overview of the limitations and challenges associated with surface-modified nanostructured adsorbents, including high cost, low stability, poor scalability, and potential nanotoxicity. Addressing these limitations is essential for realizing the commercial viability of these state-of-the-art materials for large-scale wastewater treatment applications. This review also thoroughly discusses the potential scalability and environmental safety aspects of surface-modified nanostructured adsorbents, offering insights into their future prospects for wastewater treatment. It is believed that this review will contribute significantly to the existing body of knowledge in the field and provide valuable information for researchers and practitioners working in the area of environmental remediation and nanomaterials.
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Affiliation(s)
- Xiaowei Zhang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Kejing Zhang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Yan Shi
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Central South University, Changsha 410083, China
| | - Hongrui Xiang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Weichun Yang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Central South University, Changsha 410083, China
| | - Feiping Zhao
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Central South University, Changsha 410083, China.
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Li X, Yu J, Li X, Song G, Ouyang Z, Wang R, Zhang Z, Xiao C, Chi R. Synergistic leaching process for ion-exchange ammonium from weathered crust elution deposited rare earth tailings with potassium magnesium compound eluent. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:121513-121528. [PMID: 37955730 DOI: 10.1007/s11356-023-30879-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 10/31/2023] [Indexed: 11/14/2023]
Abstract
The ion-exchangeable ammonium (IE-A) that accounts for 60-90% of the total residual ammonium in rare earth tailings has great potential to pollute the surrounding environment, and much research has been done to seek an effective elution method. However, the current study mainly focused on the single salt solution, which made it hard to reach the desired elution efficiency. In this study, the efficient binary compound eluent was prepared, and the response surface experiments and dynamic elution were performed to optimize the elution condition and evaluate the practical application prospect. Batch experimental results showed that the best IE-A elution efficiency could be achieved at the K:Mg molar ratio of 8:2, the liquid-solid ratio of 26:1, and the concentration of 0.1 mol/L at the natural solution pH. Dynamic experimental results indicated that a higher concentration, flow rate, and elution temperature could all accelerate the elution process, and the highest elution efficiency could reach 99%. The fitting results by shrinking core models show that the apparent activation energy of IE-A was 4.24 kJ/mol in the temperature range of 288-328 K, and the reaction order was 0.16. XPS and FTIR revealed that IE-A was effectively eluted by a potassium and magnesium compound leaching agent via an ion-exchange reaction. Overall, the developed compound solution with potassium and magnesium is a candidate for an elution agent that could be used to remove residual ammonium in a closed field of rare earth ores.
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Affiliation(s)
- Xiaoju Li
- Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, No. 693 Xiongchu Avenue, Hongshan District, Wuhan, 430074, Hubei, People's Republic of China
| | - Junxia Yu
- Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, No. 693 Xiongchu Avenue, Hongshan District, Wuhan, 430074, Hubei, People's Republic of China.
| | - Xiaodi Li
- Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, No. 693 Xiongchu Avenue, Hongshan District, Wuhan, 430074, Hubei, People's Republic of China
| | - Guoping Song
- Bureau of Ecology and Environment of Xiaogan City, Yingcheng Branch, Wuhan, 430074, China
| | - Ze Ouyang
- Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, No. 693 Xiongchu Avenue, Hongshan District, Wuhan, 430074, Hubei, People's Republic of China
| | - Rong Wang
- Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, No. 693 Xiongchu Avenue, Hongshan District, Wuhan, 430074, Hubei, People's Republic of China
| | - Zhenyue Zhang
- Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, No. 693 Xiongchu Avenue, Hongshan District, Wuhan, 430074, Hubei, People's Republic of China
| | - Chunqiao Xiao
- Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, No. 693 Xiongchu Avenue, Hongshan District, Wuhan, 430074, Hubei, People's Republic of China
| | - Ruan Chi
- Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, No. 693 Xiongchu Avenue, Hongshan District, Wuhan, 430074, Hubei, People's Republic of China
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Huang R, Feng T, Wu S, Zhang X, Fan Z, Yu Q, Chen Y, Chen T. In-situ synthesis of magnetic iron-chitosan-derived biochar as an efficient persulfate activator for phenol degradation. ENVIRONMENTAL RESEARCH 2023; 234:116604. [PMID: 37433379 DOI: 10.1016/j.envres.2023.116604] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 07/04/2023] [Accepted: 07/08/2023] [Indexed: 07/13/2023]
Abstract
Persulfate activation is a forceful method for eliminating organic pollutants from coal chemical wastewater. In this study, an in-situ synthesis method was used to fabricate an iron-chitosan-derived biochar (Fe-CS@BC) nanocomposite catalyst using chitosan as a template. Fe was successfully imprinted into the newly synthesized catalyst. The Fe-CS@BC can activate persulfate to effectively degrade phenol. This point was confirmed by scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The impact of various parameters on the removal rate was investigated in a single factor experiment. In Fe-CS@BC/PDS system, 95.96% of phenol (significantly higher than the original biochar of 34.33%) was removed within 45 min and 54.39% TOC within 2 h. The system showed superior efficiency over a broad pH value band from 3 to 9 and has a high degradation rate at ambient temperature. Free radical quenching experiment, EPR experiment and LSV experiment confirmed that multiple free radicals (including 1O2, SO4•-, O2•- and •OH) and electron transfer pathway combined to enhance phenol decomposition. Finally, the activation mechanism of persulfate by Fe-CS@BC was proposed to provide logical guidance on the treatment of organic pollutants in coal chemical wastewater.
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Affiliation(s)
- Ranran Huang
- College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Tao Feng
- College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China; Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources. Wuhan University of Science and Technology, Wuhan, 430081, China.
| | - Si Wu
- College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China; Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources. Wuhan University of Science and Technology, Wuhan, 430081, China.
| | - Xinyue Zhang
- College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Zhixuan Fan
- College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Qinghong Yu
- College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Yinyu Chen
- College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Tingpeng Chen
- College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
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Gao H, Han X, Wang R, Zhu K, Han R. Adsorption and catalytic degradation of bisphenol A and p-chlorophenol by magnetic carbon nanotubes. ENVIRONMENTAL RESEARCH 2023; 231:116314. [PMID: 37270083 DOI: 10.1016/j.envres.2023.116314] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/29/2023] [Accepted: 05/31/2023] [Indexed: 06/05/2023]
Abstract
Phenolic compounds are common industrial pollutants that seriously endangers water ecology and human health. Therefore, the development of efficient and recyclable adsorbents is of importance for wastewater treatment. In this research, HCNTs/Fe3O4 composites were constructed using co-precipitation way by loading magnetic Fe3O4 particles onto hydroxylated multi-walled carbon nanotubes (MWCNTs), showing excellent adsorption capacity for Bisphenol A (BPA) and p-chlorophenol (p-CP), and excellent catalytic ability of activating potassium persulphate (KPS) for degradation of BPA and p-CP. The adsorption capacity and catalytic degradation potential were evaluated for the removal of BPA and p-CP from solutions. The results showed that the adsorption took only 1 h to reach equilibrium and HCNTs/Fe3O4 had maximum adsorption capacities of 113 mg g-1 for BPA and 41.6 mg g-1 for p-CP at 303 K, respectively. The adsorption of BPA fitted well using the Langmuir, Temkin and Freundlich models while the adsorption of p-CP fitted well using the Freundlich and Temkin models. BPA adsorption on HCNTs/Fe3O4 was dominated by π-π stacking and hydrogen bonding forces. The adsorption included both the mono-molecular layer adsorption on the adsorbent surface and the multi-molecular layer adsorption on the non-uniform surface. The adsorption of p-CP on HCNTs/Fe3O4 was a multi-molecular layer adsorption on a dissimilar surface. The adsorption was controlled by forces such as π-π stacking, hydrogen bonding, partition effect and molecular sieve effect. Moreover, KPS was added to the adsorption system to initiate a heterogeneous Fenton-like catalytic degradation. Over a wide pH range (4-10), 90% of the aqueous BPA solution and 88% of the p-CP solution were degraded in 3 and 2 h, respectively. After three adsorption-regeneration or degradation cycles, the removal of BPA and p-CP remained up to 88% and 66%, indicating that HCNTs/Fe3O4 composite is cost-effective, stable and highly efficient to remove BPA and p-CP from solution.
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Affiliation(s)
- Huihui Gao
- College of Chemistry, Zhengzhou University, No 100 of Kexue Road, Zhengzhou, 450001, China.
| | - Xiaoyu Han
- College of Chemistry, Zhengzhou University, No 100 of Kexue Road, Zhengzhou, 450001, China.
| | - Rong Wang
- College of Chemistry, Zhengzhou University, No 100 of Kexue Road, Zhengzhou, 450001, China.
| | - Keke Zhu
- College of Chemistry, Zhengzhou University, No 100 of Kexue Road, Zhengzhou, 450001, China.
| | - Runping Han
- College of Chemistry, Zhengzhou University, No 100 of Kexue Road, Zhengzhou, 450001, China.
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Zhou S, Hu Y, Yang M, Liu Y, Li Q, Wang Y, Gu G, Gan M. Insights into the mechanism of persulfate activation with carbonated waste metal adsorbed resin for the degradation of 2,4-dichlorophenol. ENVIRONMENTAL RESEARCH 2023; 226:115639. [PMID: 36907348 DOI: 10.1016/j.envres.2023.115639] [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: 08/17/2022] [Revised: 02/28/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
Superabsorbent resin (SAR) saturated with heavy metals poses a threat to surrounding ecosystem. To promote the reutilization of waste, resins adsorbed by Fe2+ and Cu2+ were carbonized and used as catalysts (Fe@C/Cu@C) to activate persulfate (PS) for 2,4-dichlorophenol (2,4-DCP) degradation. The heterogeneous catalytic reaction was mainly responsible for 2,4-DCP removal. The synergistic effect of Fe@C and Cu@C was propitious to 2,4-DCP degradation. Fe@C/Cu@C with a ratio of 2:1 showed the highest performance of 2,4-DCP removal. 40 mg/L 2,4-DCP was completely removed within 90 min under reaction conditions of 5 mM PS, pH = 7.0 and T = 25 °C. The cooperation of Fe@C and Cu@C facilitated the redox cycling of Fe and Cu species to supply accessible PS activation sites, enhancing ROS generation for 2,4-DCP degradation. Carbon skeleton enhanced 2,4-DCP removal via radical/nonradical oxidation pathways and via its adsorption to 2,4-DCP. SO4˙-, HO˙ and O2•- were the dominate radical species involved in 2,4-DCP destruction. Meanwhile, the possible pathways of 2,4-DCP degradation were proposed based on GC-MS. Finally, recycling tests proved catalysts exhibited recyclable stability. Aiming to resource utilization, Fe@C/Cu@C with satisfactory catalysis and stability, is promising catalyst for contaminated water treatment.
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Affiliation(s)
- Shuang Zhou
- School of Minerals Processing and Bioengineering, Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha, 410083, China; State Environmental Protection Key Laboratory of Mineral Metallurgical Resources Utilization and Pollution Control, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Yonglian Hu
- School of Minerals Processing and Bioengineering, Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Minglei Yang
- School of Minerals Processing and Bioengineering, Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Yun Liu
- School of Minerals Processing and Bioengineering, Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Qingke Li
- School of Minerals Processing and Bioengineering, Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Yanhong Wang
- School of Minerals Processing and Bioengineering, Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Guohua Gu
- School of Minerals Processing and Bioengineering, Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha, 410083, China.
| | - Min Gan
- School of Minerals Processing and Bioengineering, Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha, 410083, China.
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Li X, Zhu X, Wu J, Gao H, Yang W, Hu X. Enhanced Heterogeneous Peroxymonosulfate Activation by MOF-Derived Magnetic Carbonaceous Nanocomposite for Phenol Degradation. MATERIALS (BASEL, SWITZERLAND) 2023; 16:3325. [PMID: 37176207 PMCID: PMC10179389 DOI: 10.3390/ma16093325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023]
Abstract
Degradation efficiency and catalyst stability are crucial issues in the control of organic compounds in wastewater by advanced oxidation processes (AOPs). However, it is difficult for catalysts used in AOPs to have both high catalytic activity and high stability. Combined with the excellent activity of cobalt/copper oxides and the good stability of carbon, highly dispersed cobalt-oxide and copper-oxide nanoparticles embedded in carbon-matrix composites (Co-Cu@C) were prepared for the catalytic activation of peroxymonosulfate (PMS). The catalysts exhibited a stable structure and excellent performance for complete phenol degradation (20 mg L-1) within 5 min in the Cu-Co@C-5/PMS system, as well as low metal-ion-leaching rates and great reusability. Moreover, a quenching test and an EPR analysis revealed that ·OH, O2·-, and 1O2 were generated in the Co-Cu@C/PMS system for phenol degradation. The possible mechanism for the radical and non-radical pathways in the activation of the PMS by the Co-Cu@C was proposed. The present study provides a new strategy with which to construct heterostructures for environmentally friendly and efficient PMS-activation catalysts.
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Affiliation(s)
- Xinyu Li
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha 410083, China
- Henan Key Laboratory of Water Pollution Control and Rehabilitation, Henan University of Urban Construction, Pingdingshan 467000, China
| | - Xinfeng Zhu
- Henan Key Laboratory of Water Pollution Control and Rehabilitation, Henan University of Urban Construction, Pingdingshan 467000, China
| | - Junfeng Wu
- Henan Key Laboratory of Water Pollution Control and Rehabilitation, Henan University of Urban Construction, Pingdingshan 467000, China
| | - Hongbin Gao
- Henan Key Laboratory of Water Pollution Control and Rehabilitation, Henan University of Urban Construction, Pingdingshan 467000, China
| | - Weichun Yang
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Xiaoxian Hu
- Henan Key Laboratory of Water Pollution Control and Rehabilitation, Henan University of Urban Construction, Pingdingshan 467000, China
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Song T, Xie C, Che Q, Yang P. Enhanced carrier separation in g-C3N4/MoO3-x heterostructures towards efficient phenol removal. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.02.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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9
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Li C, Xu B, Chen L, Jin M, Yi G, Chen L, Xing B, Zhang Y, Wu Y. Persulfate Activation by N-Doping Biochar from Peanut for Efficient Degradation of Phenol. Catal Letters 2022. [DOI: 10.1007/s10562-022-04206-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Zheng R, Lin Q, Meng L, Zhang C, Zhao L, Fu M, Ren J. Flexible phosphorus-doped activated carbon fiber paper in-situ loading of CuO for degradation of phenol. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zhu G, Jin Y, Ge M. Simple preparation of a CuO@γ-Al 2O 3 Fenton-like catalyst and its photocatalytic degradation function. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:68636-68651. [PMID: 35545745 DOI: 10.1007/s11356-022-20698-w] [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: 01/19/2022] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
We designed a photocatalyst and developed sustainable wastewater purification technology, which have significant advantages in effectively solving the global problem of drinking water shortage. In this study, a new nanocomposite was reported and shown to be a catalyst with excellent performance; CuO was coated successively onto functionalized nano γ-Al2O3, and this novel structure could provide abundant active sites. We evaluated the performance of the CuO@γ-Al2O3 nanocomposite catalyst for polyvinyl alcohol (PVA) degradation under visible light irradiation. Under optimized conditions (calcination temperature, 450 °C; mass ratio of γ-Al2O3:Cu(NO3)2·3H2O, 1:15; pH value, 7; catalyst dosage, 2.6 g/L; reaction temperature, 20 °C; and H2O2 dosage, 0.2 g/mL), the CuO@γ-Al2O3 nanocomposite catalyst presented an excellent PVA removal rate of 99.21%. After ten consecutive degradation experiments, the catalyst could still maintain a PVA removal rate of 97.58%, thus demonstrating excellent reusability. This study provides an efficient and easy-to-prepare photocatalyst and proposes a mechanism for the synergistic effect of the photocatalytic reaction and the Fenton-like reaction.
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Affiliation(s)
- Gaofeng Zhu
- School of Textile Science and Engineering, Jiangnan University, Wuxi, 214122, China
| | - Yang Jin
- School of Textile Science and Engineering, Jiangnan University, Wuxi, 214122, China
| | - Mingqiao Ge
- School of Textile Science and Engineering, Jiangnan University, Wuxi, 214122, China.
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12
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Nanostructure of Bimetallic Modified HMS Zeolite and Its Catalytic Effect on Phenol Degradation. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02460-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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13
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Zhou S, Wang G, Wang D, Chang X, Huang L, Zhao R, Sun X, Li Z. Application and enhancement of mediumpressure ultraviolet activated peroxydisulfate in treating incineration leachate. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Hu X, Min X, Li X, Si M, Liu L, Zheng J, Yang W, Zhao F. Co-Co 3O 4 encapsulated in nitrogen-doped carbon nanotubes for capacitive desalination: Effects of nano-confinement and cobalt speciation. J Colloid Interface Sci 2022; 616:389-400. [PMID: 35228044 DOI: 10.1016/j.jcis.2022.02.098] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 02/19/2022] [Accepted: 02/21/2022] [Indexed: 01/22/2023]
Abstract
Capacitive deionization (CDI) has gained increasing attention as an environmentally friendly and energy-efficient technology for brackish water desalination. However, traditional CDI electrodes still suffer from low salt adsorption capacity and unsatisfactory reusability, which inhibit its application for long-term operations. Herein, we present a facile and effective approach to prepare Co and Co3O4 nanoparticles co-incorporating nitrogen-doped (N-doped) carbon nanotubes (Co-Co3O4/N-CNTs) via a pyrolysis route. The Co-Co3O4 nanoparticles were homogeneously in-situ encapsulated in the inner channels of the conductive CNTs to form a novel and efficient CDI electrode for the first time. The encapsulation of Co-Co3O4 nanoparticles in CNTs not only inhibits the Co leaching but also significantly enhances the desalination capacity. The morphology, structure, and capacitive desalination properties of the Co-Co3O4/N-CNTs were thoroughly characterized to illuminate the nano-confinement effects and the key roles of the interaction between cobalt species in the CDI performance. The co-existing metallic cobalt and cobalt oxides act as the roles of effective active sites in the CDI performance. As a consequence, the optimum Co-Co3O4/N-CNTs electrode displays an outstanding desalination capacity of 66.91 mg NaCl g-1 at 1.4 V. This work provides insights for understanding the nano-confinement effects and the key roles of the interaction between cobalt species on the CDI performance.
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Affiliation(s)
- Xiaoxian Hu
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
| | - Xiaobo Min
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
| | - Xinyu Li
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
| | - Mengying Si
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
| | - Lu Liu
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
| | - Junhao Zheng
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
| | - Weichun Yang
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China.
| | - Feiping Zhao
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China.
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15
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Huang J, He J, Xu K, Xiang Y, Luo Y. Diclofenac degradation by activating peroxydisulfate via well-dispersed GO/Cu 2O nano-composite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:41776-41787. [PMID: 35098477 DOI: 10.1007/s11356-022-18789-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
Owing to high treatment efficiency under neutral condition and no extra energy required, copper-mediated activation of persulfate (PS) has been widely used for the degradation of refractory organic pollutants in water. The dispersion stability of copper nanoparticle in water, however, remains a great challenge. Meanwhile, chemical oxidative modification of graphene oxide (GO) can improve the dispersion stability of GO in water. In this paper, cuprous oxide (Cu2O) was deposited on the surface of GO. GO/Cu2O nano-composites with different mass ratios, i.e., m(GO):m(Cu2O) of 1:2, 1:5, 1:10, and 1:25, were prepared. When m(GO):m(Cu2O) was 1:2, the amount of GO/Cu2O nano-composite was 1.00 g/L and CPDS:CDCF was 15:1, and the catalytic degradation rate of diclofenac (DCF) was up to 90%. Corresponding physicochemical properties of the resulting samples were comprehensively characterized by using SEM, TEM, XRD, Raman, FT-IR, and XPS. DCF degradation by activating peroxydisulfate (PDS) via GO/Cu2O nano-composite was also investigated in detail. It is found that the synergistic effect, namely GO adsorption and multivalent copper ion electron transfer, makes GO/Cu2O nano-composite reveal higher reactivity. Moreover, GO/Cu2O nano-composite possesses good stability in consecutive cycling test. EPR analyses shows that ·OH and SO4·- radicals are involved in DCF degradation. It is indicated that the DCF degradation process contain hydroxylation and the cleavage of C-N bond, which is explored by GC-MS. In our research, well-dispersed GO/Cu2O nano-composite with high capacity and good cycling stability was fabricated successfully. Compared with pure Cu2O nanoparticle, GO/Cu2O nano-composite exhibits the better performance for DCF removal. A novel well-dispersed cuprous oxide (Cu2O) deposited on surface of GO was fabricated with high catalytic performance. Its heterogeneous activation of peroxydisulfate (PDS) for diclofenac (DCF) degradation was investigated. GO/Cu2O nano-composite was proved high capacity and good cycling stability. Meanwhile, the possible DCF degradation pathway was explored. Compared with pure Cu2O nanoparticle, GO/Cu2O nano-composite exhibits better performance for DCF removal.
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Affiliation(s)
- Jialei Huang
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai, 201620, People's Republic of China
| | - Jingjing He
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai, 201620, People's Republic of China
| | - Keneng Xu
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai, 201620, People's Republic of China
| | - Yali Xiang
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai, 201620, People's Republic of China
| | - Yan Luo
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai, 201620, People's Republic of China.
- Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, Shanghai, 201620, People's Republic of China.
- National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, Donghua University, Shanghai, 201620, People's Republic of China.
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16
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Gao Q, Sun K, Cui Y, Wang S, Liu C, Liu B. In situ growth of 2D/3D Bi2MoO6/CeO2 heterostructures toward enhanced photodegradation and Cr(VI) reduction. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120312] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Liu W, Kang Q, Wang L, Wen L, Li Z. Facile synthesis of Z-scheme g-C3N4@MIL-100 (Fe) and the efficient photocatalytic degradation on doxycycline and disinfection by-products by coupling with persulfate: Mechanism and pathway. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128057] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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18
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Azzam AB, Abd El-Aziz AO, Mohamed SK. Activation of persulfate using CuS synthesized by ultrafast solid-state reaction for removal of organic pollutants from wastewater: Economical synthesis, catalytic performance, and mechanism. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120238] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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