1
|
Zou JJ, Dai C, Hu J, Tong WK, Gao MT, Zhang Y, Leong KH, Fu R, Zhou L. A novel mycelial pellet applied to remove polycyclic aromatic hydrocarbons: High adsorption performance & its mechanisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 922:171201. [PMID: 38417506 DOI: 10.1016/j.scitotenv.2024.171201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/06/2024] [Accepted: 02/21/2024] [Indexed: 03/01/2024]
Abstract
Mycelial pellets formed by Penicillium thomii ZJJ were applied as efficient biosorbents for the removal of polycyclic aromatic hydrocarbons (PAHs), which are a type of ubiquitous harmful hydrophobic pollutants. The live mycelial pellets were able to remove 93.48 % of pyrene at a concentration of 100 mg/L within 48 h, demonstrating a maximum adsorption capacity of 285.63 mg/g. Meanwhile, the heat-killed one also achieved a removal rate of 65.01 %. Among the six typical PAHs (pyrene, phenanthrene, fluorene, anthracene, fluoranthene, benzo[a]pyrene), the mycelial pellets preferentially adsorbed the high molecular weight PAHs, which also have higher toxicity, resulting in higher removal efficiency. The experimental results showed that the biosorption of mycelial pellets was mainly a spontaneous physical adsorption process that occurred as a monolayer on a homogeneous surface, with mass transfer being the key rate-limiting step. The main adsorption sites on the surface of mycelia were carboxyl and N-containing groups. Extracellular polymeric substances (EPS) produced by mycelial pellets could enhance adsorption, and its coupling with dead mycelia could achieve basically the same removal effect to that of living one. It can be concluded that biosorption by mycelial pellets occurred due to the influence of electrostatic and hydrophobic interactions, consisting of five steps. Furthermore, the potential applicability of mycelial pellets has been investigated considering diverse factors. The mycelia showed high environmental tolerance, which could effectively remove pyrene across a wide range of pH and salt concentration. And pellets diameters and humic acid concentration had a significant effect on microbial adsorption effect. Based on a cost-effectiveness analysis, mycelium pellets were found to be a low-cost adsorbent. The research outcomes facilitate a thorough comprehension of the adsorption process of pyrene by mycelial pellets and their relevant applications, proposing a cost-effective method without potential environmental issues (heat-killed mycelial pellets plus EPS) to removal PAHs.
Collapse
Affiliation(s)
- Jia Jie Zou
- College of Civil Engineering, Tongji University, Shanghai 200092, China; Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Chaomeng Dai
- College of Civil Engineering, Tongji University, Shanghai 200092, China.
| | - Jiajun Hu
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai 200444, China.
| | - Wang Kai Tong
- College of Civil Engineering, Tongji University, Shanghai 200092, China; Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Min-Tian Gao
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Yalei Zhang
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Kah Hon Leong
- Department of Environmental Engineering, Faculty of Engineering and Green Technology, University Tunku Abdul Rahman, 31900 Kampar, Perak, Malaysia
| | - Rongbing Fu
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Lang Zhou
- Department of Civil, Architectural and Environmental Engineering, University of Texas at Austin, Austin, TX 78712, United States
| |
Collapse
|
2
|
Shyamalagowri S, Bhavithra HA, Akila N, Jeyaraj SSG, Aravind J, Kamaraj M, Pandiaraj S. Carbon-based adsorbents for the mitigation of polycyclic aromatic hydrocarbon: a review of recent research. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:108. [PMID: 38453774 DOI: 10.1007/s10653-024-01915-6] [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: 01/17/2024] [Accepted: 02/15/2024] [Indexed: 03/09/2024]
Abstract
Accumulation of polycyclic aromatic hydrocarbons (PAH) poses significant dangers to the environment and human health. The advancement of technology for cleaning up PAH-contaminated environments is receiving more attention. Adsorption is the preferred and most favorable approach for cleaning up sediments polluted with PAH. Due to their affordability and environmental friendliness, carbonaceous adsorbents (CAs) have been regarded as promising for adsorbing PAH. However, adsorbent qualities, environmental features, and factors may all significantly impact how well CAs remove PAH. According to growing data, CAs, most of which come from laboratory tests, may be utilized to decontaminate PAH in aquatic setups. However, their full potential has not yet been established, especially concerning field applications. This review aims to concisely summarize recent developments in CA, PAH stabilization processes, and essential field application-controlling variables. This review analysis emphasizes activated carbon, biochar, Graphene, carbon nanotubes, and carbon-nanomaterials composite since these CAs are most often utilized as adsorbents for PAH in aquatic systems.
Collapse
Affiliation(s)
- S Shyamalagowri
- PG and Research Department of Botany, Pachaiyappa's College, Chennai, Tamil Nadu, 600030, India
| | - H A Bhavithra
- Department of Mathematics, Faculty of Science and Humanities, SRM Institute of Science and Technology-Ramapuram, Chennai, Tamil Nadu, 600089, India
| | - N Akila
- PG and Research Department of Zoology, Pachaiyappa's College, Chennai, Tamil Nadu, 600030, India
| | | | - J Aravind
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, 602105, India.
| | - M Kamaraj
- Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology-Ramapuram, Chennai, Tamil Nadu, 600089, India.
- Life Science Division, Faculty of Health and Life Sciences, INTI International University, 71800, Nilai, Malaysia.
| | - Saravanan Pandiaraj
- Biological and Environmental Sensing Research Unit, King Abdullah Institute for Nanotechnology, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| |
Collapse
|
3
|
Nascimento DP, de Farias MB, Queiroz RN, da Silva MGC, Prediger P, Vieira MGA. Fluoranthene adsorption by graphene oxide and magnetic chitosan composite (mCS/GO). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:6891-6906. [PMID: 38157165 DOI: 10.1007/s11356-023-31528-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 12/09/2023] [Indexed: 01/03/2024]
Abstract
The oil industry faces the challenge of reducing its high polluting potential, due to the presence of aromatic pollutants, such as polycyclic aromatic hydrocarbons (PAHs). Efforts have been made to mitigate the impact of PAHs in industry through the development of detection technologies and the implementation of mitigation strategies. This study presents the adsorption of fluoranthene, through a magnetic composite of graphene oxide and chitosan as a method of remediation of produced water. The efficiency of the process was evaluated through kinetic, equilibrium, thermodynamic, and characterization analyses. The nanocomposite was able to remove 90.9% of FLT after 60 min and showed a maximum adsorption capacity of 28.22 mg/g, demonstrating that they can be implemented to remove fluoranthene. Kinetic and equilibrium experimental data showed that physisorption is the predominant adsorptive mechanism; however, the process is also influenced by chemisorption, which occurs through electrostatic interactions between the surface of the material and the adsorbate. The thermodynamic study showed that fluoranthene and graphene composite have high affinity, and that the adsorption is exothermic and spontaneous. The results presented in this paper indicate that the magnetic composite is a potential and sustainable adsorbent for fluoranthene remediation.
Collapse
Affiliation(s)
- Danilo Patrício Nascimento
- School of Chemical Engineering, University of Campinas - UNICAMP, Albert Einstein Avenue, 500, 13083-852 Campinas, São Paulo, Brazil
| | - Marina Barbosa de Farias
- School of Chemical Engineering, University of Campinas - UNICAMP, Albert Einstein Avenue, 500, 13083-852 Campinas, São Paulo, Brazil
| | - Ruth Nóbrega Queiroz
- School of Chemical Engineering, University of Campinas - UNICAMP, Albert Einstein Avenue, 500, 13083-852 Campinas, São Paulo, Brazil
| | - Meuris Gurgel Carlos da Silva
- School of Chemical Engineering, University of Campinas - UNICAMP, Albert Einstein Avenue, 500, 13083-852 Campinas, São Paulo, Brazil
| | - Patrícia Prediger
- School of Technology, University of Campinas - UNICAMP, 13484-332 Limeira, São Paulo, Brazil
| | - Melissa Gurgel Adeodato Vieira
- School of Chemical Engineering, University of Campinas - UNICAMP, Albert Einstein Avenue, 500, 13083-852 Campinas, São Paulo, Brazil.
| |
Collapse
|
4
|
Janarthanam VA, Issac PK, Guru A, Arockiaraj J. Hazards of polycyclic aromatic hydrocarbons: a review on occurrence, detection, and role of green nanomaterials on the removal of PAH from the water environment. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1531. [PMID: 38008868 DOI: 10.1007/s10661-023-12076-x] [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: 05/14/2023] [Accepted: 10/30/2023] [Indexed: 11/28/2023]
Abstract
Organic pollutant contamination in the environment is a serious and dangerous issue, especially for developing countries. Among all organic pollutants, polycyclic aromatic hydrocarbons (PAHs) are the more frequently discovered ones in the environment. PAH contamination is caused chiefly by anthropogenic sources, such as the disposal of residential and industrial waste and automobile air emissions. They are gaining interest due to their environmental persistence, toxicity, and probable bioaccumulation. The existence of PAHs may result in damage to the environment and living things, and there is widespread concern about the acute and chronic threats posed by the release of these contaminants. The detection and elimination of PAHs from wastewater have been the focus of numerous technological developments during recent decades. The development of sensitive and economical monitoring systems for detecting these substances has attracted a lot of scientific attention. Using several nanomaterials and nanocomposites is a promising treatment option for the identification and elimination of PAHs in aquatic ecosystems. This review elaborated on the sources of origin, pathogenicity, and widespread occurrence of PAHs. In addition, the paper highlighted the use of nanomaterial-based sensors in detecting PAHs from contaminated sites and nanomaterial-based absorbents in PAH elimination from wastewater. This review also addresses the development of Graphene and Biofunctionalized nanomaterials for the elimination of PAHs from the contaminated sites.
Collapse
Affiliation(s)
- Vishnu Adith Janarthanam
- Institute of Biotechnology, Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, 602105, India
| | - Praveen Kumar Issac
- Institute of Biotechnology, Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, 602105, India.
| | - Ajay Guru
- Department of Cariology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600 077, Tamil Nadu, India.
| | - Jesu Arockiaraj
- Toxicology and Pharmacology Laboratory, Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Chengalpattu District, Kattankulathur, , Tamil Nadu, 603203, India.
| |
Collapse
|
5
|
Lv S, Wang Y, Zheng Y, Ma Z. Removal of Hexamethyldisiloxane via a Novel Hydrophobic (3-Aminopropyl)Trimethoxysilane-Modified Activated Porous Carbon. Molecules 2023; 28:6493. [PMID: 37764269 PMCID: PMC10535671 DOI: 10.3390/molecules28186493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/04/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Volatile methyl siloxanes (VMS) must be removed because the formation of silica in the combustion process seriously affects the resource utilization of biogas. Herein, a series of APTMS ((3-aminopropyl)trimethoxysilane)-modified activated porous carbon (APC) adsorbents (named APTMS@APC) were prepared for VMS efficient removal. The as-prepared adsorbents were characterized using SEM, FTIR, Raman, X-ray diffraction analyses, and N2 adsorption/desorption. The results showed that the surface modification with APTMS enhanced the hydrophobicity of APC with the water contact angle increasing from 74.3° (hydrophilic) to 127.1° (hydrophobic), and meanwhile improved its texture properties with the SBET increasing from 981 to 1274 m2 g-1. The maximum breakthrough adsorption capacity of APTMS@APC for hexamethyldisiloxane (L2, model pollutant) was 360.1 mg g-1. Effects of an inlet L2 concentration (31.04-83.82 mg L-1) and a bed temperature (0-50 °C) on the removal of L2 were investigated. Meanwhile, after five adsorption-desorption cycles, the APTMS@APC demonstrated a superior cycling performance. This indicated that the hydrophobic APTMS@APC has a great significance to remove VMS.
Collapse
Affiliation(s)
- Siqi Lv
- Hebei Key Laboratory of Inorganic Nano-Materials, College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang 050024, China
| | - Yingrun Wang
- Hebei Key Laboratory of Inorganic Nano-Materials, College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang 050024, China
| | - Yanhui Zheng
- Hebei Key Laboratory of Inorganic Nano-Materials, College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang 050024, China
- College of Chemical Technology, Shijiazhuang University, Shijiazhuang 050035, China
| | - Zichuan Ma
- Hebei Key Laboratory of Inorganic Nano-Materials, College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang 050024, China
| |
Collapse
|
6
|
Liu Y, Cao S, Liu Z, Wu D, Luo M, Chen Z. Adsorption of amphetamine on deep eutectic solvents functionalized graphene oxide/metal-organic framework nanocomposite: Elucidation of hydrogen bonding and DFT studies. CHEMOSPHERE 2023; 323:138276. [PMID: 36863627 DOI: 10.1016/j.chemosphere.2023.138276] [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: 12/12/2022] [Revised: 02/11/2023] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
The efficient and selective removal of amphetamine (AMP) from water bodies is significant for environmental remediation. In this study, a novel strategy for screening deep eutectic solvent (DES) functional monomers was proposed based on density functional theory (DFT) calculations. Using magnetic GO/ZIF-67 (ZMG) as substrates, three DES-functionalized adsorbents (ZMG-BA, ZMG-FA, and ZMG-PA) were successfully synthesized. The isothermal results showed that the DES-functionalized materials introduced more adsorption sites and mainly contributed to the formation of hydrogen bonds. The order of the maximum adsorption capacity (Qm) was as follows: ZMG-BA (732.110 μg⋅g-1) > ZMG-FA (636.518 μg⋅g-1) > ZMG-PA (564.618 μg⋅g-1) > ZMG (489.913 μg⋅g-1). The adsorption rate of AMP on ZMG-BA was the highest (98.1%) at pH 11, which could be explained by the less protonation of -NH2 from AMP being more favorable for forming hydrogen bonds with the -COOH of ZMG-BA. The strongest affinity of the -COOH of ZMG-BA for AMP was reflected in the most hydrogen bonds and the shortest bond length. The hydrogen bonding adsorption mechanism was fully explained by experimental characterization (FT-IR, XPS) and DFT calculations. Frontier Molecular Orbital (FMO) calculations showed that ZMG-BA had the lowest HOMO-LUMO energy gap (Egap), the highest chemical activity and the best adsorption capability. The experimental results agreed with the results of theoretical calculations, proving the validity of the functional monomer screening method. This research offered fresh suggestions for the functionalized modification of carbon nanomaterials to achieve effective and selective adsorption for psychoactive substances.
Collapse
Affiliation(s)
- Yujie Liu
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
| | - Shurui Cao
- Forensic Identification Center, Southwest University of Political Science and Law, Chongqing, 401120, China; Criminal Investigation Law School, Southwest University of Political Science and Law, Chongqing, 401120, China
| | - Zhenghong Liu
- Forensic Identification Center, Southwest University of Political Science and Law, Chongqing, 401120, China
| | - Duanhao Wu
- Forensic Identification Center, Southwest University of Political Science and Law, Chongqing, 401120, China
| | - Mengni Luo
- Forensic Identification Center, Southwest University of Political Science and Law, Chongqing, 401120, China
| | - Zhiqiong Chen
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, China.
| |
Collapse
|
7
|
Guo Y, Dai Y, Wang Y, Zuo G, Long T, Li S, Li H, Sun C, Zhao W. Boosted visible-light-driven degradation over stable ternary heterojunction as a plasmonic photocatalyst: Mechanism exploration, pathway and toxicity evaluation. J Colloid Interface Sci 2023; 641:758-781. [PMID: 36965346 DOI: 10.1016/j.jcis.2023.03.064] [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: 12/27/2022] [Revised: 02/20/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023]
Abstract
The incorporation of plasmonic metals into semiconductors forming heterojunction photocatalysts is a promising route to enhance the photocatalytic performance in visible light. In this work, we reported the visible-light-driven one-dimensional (1D) nanostick silver/silver sulfide (Ag/Ag2S) photocatalyst combining with two-dimensional (2D) nanosheet reduced graphene oxide intersected by hollow structure (h-RGO) was prepared via a feasible approach at room temperature. The density of Ag depositing on the surface of Ag2S was easily tuned by the concentration of sodium borohydride and the silicon dioxide nanospheres were employed as templates in the preparation of h-RGO by the layer-by-layer (LBL) assembly. The ternary plasmonic Ag/Ag2S/h-RGO photocatalysts exhibited better photocatalytic performance for degradation of naphthalene (95.95%) and 1-naphthol (98.65%) under visible light than the pure Ag2S, composite Ag/Ag2S and composite Ag/Ag2S/RGO. Localized surface plasmon resonance of Ag, heterojunction formed between Ag/Ag2S and RGO and the unique characteristics of h-RGO, which included higher specific surface areas, more efficient reflections of light and more active sites than RGO for boosting separation efficiency of charge carriers, were all responsible for such enhancement. By combining the characterization results with various computations, the mechanism, potential degradation pathways and the toxicity of the generated intermediates for photodegradation were examined. In addition to offering profound insight into the expansion of effective plasmonic photocatalysts with novel structures, the current study is beneficial to ease the environmental crisis to a certain extent.
Collapse
Affiliation(s)
- Yang Guo
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210000, China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China; Department of Plant, Soil and Microbial Sciences, Plant and Soil Science Building 1066 Bogue Street, Michigan State University, East Lansing, MI 48824, United States
| | - Yuxuan Dai
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Yuting Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Gancheng Zuo
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, China
| | - Tao Long
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210000, China
| | - Shijie Li
- Institute of Innovation & Application, Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, Zhejiang Province 316022, China
| | - Hui Li
- Department of Plant, Soil and Microbial Sciences, Plant and Soil Science Building 1066 Bogue Street, Michigan State University, East Lansing, MI 48824, United States
| | - Cheng Sun
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China.
| | - Wei Zhao
- Department of Mechanical Engineering, University of Hong Kong, Pokfulam Road, Hong Kong; School of Materials Engineering, Changshu Institute of Technology, Changshu, China
| |
Collapse
|
8
|
Rout DR, Jena HM, Baigenzhenov O, Hosseini-Bandegharaei A. Graphene-based materials for effective adsorption of organic and inorganic pollutants: A critical and comprehensive review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 863:160871. [PMID: 36521616 DOI: 10.1016/j.scitotenv.2022.160871] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/06/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
Water scarcity has been felt in many countries and will become a critical issue in the coming years. The release of toxic organic and inorganic contaminants from different anthropogenic activities, like mining, agriculture, industries, and domestic households, enters the natural waterbody and pollutes them. Keeping this in view in combating the environmental crises, removing pollutants from wastewater is one of the ongoing environmental challenges. Adsorption technology is an economical, fast, and efficient physicochemical method for removing both organic and inorganic pollutants, even at low concentrations. In the last decade, graphene and its composite materials have become the center of attraction for numerous applications, including wastewater treatment, due to the large surface area, highly active surface, and exclusive physicochemical properties, which make them potential adsorbents with unique physicochemical properties, like low density, chemical strength, structural variability, and the possibility of large-scale fabrications. This review article provides a thorough summary/critical appraisal of the published literature on graphene-, GO-, and rGO-based adsorbents for the removal of organic and inorganic pollutants from wastewater. The synthesis methods, experimental parameters, adsorption behaviors, isotherms, kinetics, thermodynamics, mechanisms, and the performance of the regeneration-desorption processes of these substances are scrutinized. Finally, the research challenges, limitations, and future research studies are also discussed. Certainly, this review article will benefit the research community by getting substantial information on suitable techniques for synthesizing such adsorbents and utilizing them in water treatment and designing water treatment systems.
Collapse
Affiliation(s)
- Dibya Ranjan Rout
- Department of Chemical Engineering, National Institute of Technology, Rourkela 769008, Orissa, India.
| | - Hara Mohan Jena
- Department of Chemical Engineering, National Institute of Technology, Rourkela 769008, Orissa, India.
| | | | | |
Collapse
|
9
|
Queiroz RN, da Silva MGC, Mastelaro VR, Prediger P, Vieira MGA. Adsorption of naphthalene polycyclic aromatic hydrocarbon from wastewater by a green magnetic composite based on chitosan and graphene oxide. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:27603-27621. [PMID: 36383320 DOI: 10.1007/s11356-022-24198-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
A green magnetic composite mCS/GO was synthesized using water hyacinth extract, as a reducing agent, and proanthocyanidin, as a crosslinking agent, for the adsorption of naphthalene from effluents. The green composite was evaluated using different characterization techniques to determine its thermal (TG/DTG), structural (BET, XPS and FTIR), crystallographic (XRD), and textural (SEM) properties in natura and post-adsorption. The results obtained through a central composite design (CCD) experiment indicated that the initial concentration of NAP and the adsorbent dosage are significant for the adsorption capacity. The adsorption assays indicated that physisorption, through π-π and hydrophobic interactions, were the main mechanism involved in the NAP adsorption. However, the adjustment to the PSO and Freundlich models, obtained through kinetic and equilibrium studies, indicated that chemisorption also influences the adsorptive process. The thermodynamic study indicated physisorption as the mechanism responsible for the NAP adsorption. Also, the adsorbent has high affinity for the adsorbate and the process is spontaneous and endothermic. The maximum adsorption capacity (qmax) of the green mCS/GO was 334.37 mg g-1 at 20 °C. Furthermore, the green mCS/GO was effectively regenerated with methanol and reused for five consecutive cycles, the percentage of NAP recovery went from approximately 91 to 75% after the fifth cycle. The green composite was also applied in the adsorption of NAP from river water samples, aiming to evaluate the feasibility of the method in real applications. The adsorption efficiency was approximately 70%. From what we know, this it is the first time that a green adsorbent was recycled after the polycyclic aromatic hydrocarbon (PAHs) adsorption process.
Collapse
Affiliation(s)
- Ruth Nóbrega Queiroz
- Process and Product Development Department, School of Chemical Engineering, University of Campinas - UNICAMP, Albert Einstein Avenue, Campinas, São Paulo, 50013083-852, Brazil
| | - Meuris Gurgel Carlos da Silva
- Process and Product Development Department, School of Chemical Engineering, University of Campinas - UNICAMP, Albert Einstein Avenue, Campinas, São Paulo, 50013083-852, Brazil
| | - Valmor Roberto Mastelaro
- São Carlos Institute of Physics, University of São Paulo, Av. Trabalhador São Carlense, São Carlos, SP, 40013566-590, Brazil
| | - Patricia Prediger
- School of Technology, University of Campinas - UNICAMP, Limeira, São Paulo, 13484-332, Brazil
| | - Melissa Gurgel Adeodato Vieira
- Process and Product Development Department, School of Chemical Engineering, University of Campinas - UNICAMP, Albert Einstein Avenue, Campinas, São Paulo, 50013083-852, Brazil.
| |
Collapse
|
10
|
Ren Z, Yang X, Zhang W, Zhao Z. Preparation, characterization and performance of a novel magnetic Fe-Zn activated carbon for efficient removal of dyes from wastewater. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
11
|
Wang T, Husein DZ. Novel synthesis of multicomponent porous nano-hybrid composite, theoretical investigation using DFT and dye adsorption applications: disposing of waste with waste. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:8928-8955. [PMID: 35460480 DOI: 10.1007/s11356-022-20050-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 03/29/2022] [Indexed: 06/14/2023]
Abstract
Extensive studies have shown that doping can enhance the properties of graphene, but the application to real industrial wastewater treatment and theoretical calculations are limited. In this study, the hybrid nanoadsorbent Cu, N co-doped graphene (Cu@NG) was successfully synthesized via green route using carbon rods from waste dry batteries, human urine and copper nitrate, then multiple characterizations, detailed density functional theory (DFT) theoretical calculations and comprehensive actual wastewater tests are performed in environmental applications to investigate the adsorption properties and mechanism. The results showed that Cu@NG surface is mesoporous, decorated with CuO crystals and doped with N atoms. The isotherms and kinetics were simulated by Langmuir and pseudo-second-order models, respectively. The theoretical maximum sorption for MB and CV on Cu@NG is 116.28 mg·g-1 and CV is 86.96 mg·g-1, respectively. Pilot tests with Cu@NG on real textile wastewater showed that COD, BOD and color were removed by 54.2%, 55.2% and 86.4%, respectively. The desorption rate of Cu@NG is approximately above 90% for both MB and CV on Cu@NG after six cycles of treatment. The DFT calculations confirmed the experimental results as MB is more reactive than CV molecules. Besides, interactions have been systematically investigated via topology and natural bond orbital (NBO) analyses. The process mechanism involved mainly electrostatic adsorption, π-π stacking interactions and H-bonding interactions and ion exchange.
Collapse
Affiliation(s)
- Tongtong Wang
- College of Natural Resources and Environment, Northwest A & F University, Yangling, 712100, China
| | - Dalal Z Husein
- Chemistry Department, Faculty of Science, New Valley University, El-Kharja, 72511, Egypt.
| |
Collapse
|
12
|
Wang M, Li T, Hou Q, Hao Y, Wang Z. Facile one-step preparation of Co and Ce doped TiO 2 in visible light PMS activation for PAHs degradation. CHEMOSPHERE 2022; 308:136360. [PMID: 36115476 DOI: 10.1016/j.chemosphere.2022.136360] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 08/18/2022] [Accepted: 09/03/2022] [Indexed: 06/15/2023]
Abstract
In this work, Co and Ce doped TiO2 (CoCeTi) with low content of Co and Ce was successfully prepared by a facile one-step sol-gel solvothermal process for activating Peroxymonosulfate (PMS) to degrade Polycyclic aromatic hydrocarbons (PAHs). The phenanthrene degradation rate was 98.2% effectively in 15 min by CoCeTi (50.0 mg/L) activation PMS (0.50 mmol/L) under visible light. SO4•-, O2•-, h+ and 1O2 were verified as the dominant reactive species for PAHs degradation. The collective effect of CoCeTi, PMS and visible light irradiation has been discussed. The possible phenanthrene degradation pathway was proposed through intermediates analysis. CoCeTi composed of Co3O4, CeO2 and TiO2 was confirmed. Outstandingly, CoCeTi/PMS/visible light system has very low cobalt (0.036 mg/L) and cerium (0.27 mg/L) leaching. Due to CoCeTi having good activated PMS properties and other excellent characteristics, it has potential application for PAHs or other organic pollutants degradation.
Collapse
Affiliation(s)
- Mingyong Wang
- School of Chemical Sciences, University of the Chinese Academy of Sciences, 19(A) Yu Quan Road, Beijing, 100049, China
| | - Taiguang Li
- School of Chemical Sciences, University of the Chinese Academy of Sciences, 19(A) Yu Quan Road, Beijing, 100049, China
| | - Qingzheng Hou
- School of Chemical Sciences, University of the Chinese Academy of Sciences, 19(A) Yu Quan Road, Beijing, 100049, China
| | - Yongmei Hao
- School of Chemical Sciences, University of the Chinese Academy of Sciences, 19(A) Yu Quan Road, Beijing, 100049, China.
| | - Zhongming Wang
- Faculty of Science, Beijing University of Chemical Technology, No. 15 of North 3rd Ring East Road, Chaoyang District, 100029, Beijing, China.
| |
Collapse
|
13
|
Fan S, Shi J, Sun S, Wang J, Wiafe Biney B, Al-shiaani N, Wang S, Guo A, Chen K, Wang Z, Liu H. In-Situ Decontamination of Heavy Metal Containing Wastewater from Oil Refineries into Catalyst for Polycyclic Aromatic Hydrocarbons Hydrogenation Coupled with Water-Gas Shift Reaction. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122802] [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]
|
14
|
Yi P, Zuo X, Liang N, Wu M, Chen Q, Zhang L, Pan B. Molecular clusters played an important role in the adsorption of polycyclic aromatic hydrocarbons (PAHs) on carbonaceous materials. CHEMOSPHERE 2022; 302:134772. [PMID: 35526686 DOI: 10.1016/j.chemosphere.2022.134772] [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: 03/05/2022] [Revised: 04/21/2022] [Accepted: 04/26/2022] [Indexed: 06/14/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are one of the most frequently detected hydrophobic organic contaminants (HOCs) in the environment. They may form clusters because of the strong hydrophobic and π-π electron-donor-acceptor (EDA) interactions among PAHs molecules. However, previous experimental studies and theoretical simulations generally ignored the impact of molecular clusters on the adsorption, which may result in the misunderstanding of the environmental fate and risk. In this work, naphthalene (NAP), phenanthrene (PHE), and pyrene (PYR) were selected to investigate intermolecular interaction as well as the consequent impact on their adsorption on graphene. The density field of C atoms in equilibrium configurations of self-interacted PAHs suggested that the formation of PAHs molecular clusters was a spontaneous process, and was favored in solvents with stronger polarity and for PAHs with more benzene rings. It should be noted that the molecular dynamics simulations with the initial state of molecular clusters matched better with the published experimental results compared with those of individual PAHs. The formed compact PAHs clusters in polar solvents increased the apparent PAHs adsorption, because of their higher hydrophobic and π-π EDA interactions. This study emphasized that the self-interaction of PAHs should be carefully considered in both experimental and theoretical simulation studies.
Collapse
Affiliation(s)
- Peng Yi
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China
| | - Xiangzhi Zuo
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China
| | - Ni Liang
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China
| | - Min Wu
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China
| | - Quan Chen
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China.
| | - Lijuan Zhang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Bo Pan
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, Yunnan, China.
| |
Collapse
|
15
|
Zhao J, Tian W, Chu M, Chen H, Yang S, Jiang J. Enhanced photodegradation of methyl and parent PAH over flower-sphere Ag/rGO/BiOBr composite: Performance, mechanism and pathway. CHEMOSPHERE 2022; 297:134175. [PMID: 35271896 DOI: 10.1016/j.chemosphere.2022.134175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 02/13/2022] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
Significant amounts of methyl and parent polycyclic aromatic hydrocarbons (PAHs) exist in the environment, causing a potential environmental threat. A cost-effective, stable, and efficient photocatalyst was valuable for water remediation. In this work, Ag and reduced graphene oxide (rGO) was used to promote the visible light utilization of BiOBr catalyst. The photocatalytic degradation performance of synthesized catalysts under sunlight irradiation was better than under visible light irradiation. The Ag/rGO/BiOBr catalyst was superior to pure BiOBr and Ag/BiOBr in the photodegradation of 3,6-dimethylphenanthrene (3,6-DMP) and phenanthrene (Phe) with the optimum doping amounts (Ag 1.5 wt% and rGO 3 wt%). The degradation of 3,6-DMP on 1.5Ag/3rGO/BiOBr was influenced by solution pH, catalyst dosage and humic acid adding. 3,6-DMP was more easily photodegraded than Phe. Superoxide radicals (·O2-) and holes (h+) played key roles in the photocatalytic process. The photodegradation mechanisms and pathways of 3,6-DMP and Phe were proposed according to the intermediate detection results by GC-MS. Ag/rGO/BiOBr provided a promising solution for methyl and parent PAH remediation.
Collapse
Affiliation(s)
- Jing Zhao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, PR China
| | - Weijun Tian
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, PR China; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, PR China.
| | - Meile Chu
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, PR China
| | - Haining Chen
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, PR China
| | - Shujie Yang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, PR China
| | - Junfeng Jiang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, PR China
| |
Collapse
|
16
|
Abstract
Naphthalene is one of the most hazardous polycyclic aromatic hydrocarbons to public health. This paper comprehensively summarized the recent development of modification methods of adsorbents for naphthalene removal in the environment. Various modification methods used in the adsorbent were summarized, mainly including acid oxidation modification, salt modification, doping modification, amino modification, microwave modification, and plasma modification. These methods enhance the adsorption performance of naphthalene mainly by changing the pore size and the oxygen content on the surface of the adsorbent. The modification parameters and their effects on naphthalene removal as well as the advantages and disadvantages of each method are described in detail. This review provides the necessary inspiration and guidance for the researchers who develop polycyclic aromatic hydrocarbons adsorption materials in the environment.
Collapse
|
17
|
The Synthesis of Magnetic Nitrogen-Doped Graphene Oxide Nanocomposite for the Removal of Reactive Orange 12 Dye. ADSORPT SCI TECHNOL 2022. [DOI: 10.1155/2022/9417542] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Herein, we report the nanofabrication of magnetic calcium ferrite (CaFe2O4) with nitrogen-doped graphene oxide (N-GO) via facile ultrasonication method to produce CaFe2O4/N-GO nanocomposite for the potential removal of reactive orange 12 (RO12) dye from aqueous solution. The successful construction of the nanocomposite was confirmed using different characterization techniques including scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform-infrared spectroscopy (FT-IR), and X-ray diffraction (XRD). The magnetic properties were studied using vibrating sample magnetometer (VSM) indicating ferromagnetic behavior of the synthesized materials that facilitate their separation using an external magnetic field after adsorption treatment. The addition of N-GO to CaFe2O4 nanoparticles enhanced the BET surface area from 24 to 52.93 m2/g as resulted from the N2 adsorption-desorption isotherm. The adsorption of the synthesized nanomaterials is controlled by several parameters (initial concentration of dye, contact time, adsorbent dosage, and pH), and the RO12 dye removal on the surface of CaFe2O4 nanoparticles and CaFe2O4/N-GO nanocomposite was reached through the chemisorption process as indicated from the kinetic study. The adsorption isotherm study indicated that the adsorption process of RO12 dye was best described through the Langmuir isotherm approving the monolayer adsorption. According to the Langmuir model, the maximum adsorption capacity for RO12 was 250 and 333.33 mg/g for CaFe2O4 nanoparticles and CaFe2O4/N-GO nanocomposite, respectively. The adsorption capacity offered by CaFe2O4/N-GO nanocomposite was higher than reported in the literature for adsorbent materials. Additionally, the regeneration study indicated that CaFe2O4/N-GO nanocomposite is reusable and cost-effective adsorbent. Therefore, the nanofabricated CaFe2O4/N-GO hybrid material is a promising adsorbent for water treatment.
Collapse
|
18
|
Wei Z, Ma X, Zhang Y, Guo Y, Wang W, Jiang ZY. High-efficiency adsorption of phenanthrene by Fe 3O 4-SiO 2-dimethoxydiphenylsilane nanocomposite: Experimental and theoretical study. JOURNAL OF HAZARDOUS MATERIALS 2022; 422:126948. [PMID: 34449349 DOI: 10.1016/j.jhazmat.2021.126948] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 08/15/2021] [Accepted: 08/16/2021] [Indexed: 05/19/2023]
Abstract
Phenanthrene (PHE), as one of representative polycyclic aromatic hydrocarbons (PAHs) can cause serious adverse effects on human health, developing effective adsorbents to alleviate PHE contamination is in urgent demand. A novel Fe3O4-SiO2-Dimethoxydiphenylsilane (Fe3O4-SiO2-2DMDPS) nanocomposite was fabricated from encapsulation and grafting process. Magnetic Fe3O4 nanoparticles were served as preliminary matrix material, SiO2 was used to link the magnetic oxide and provide hydroxyl groups for proceeding the silane coupling reaction subsequently, and the aromatic rings in DMDPS could provide active sites for PHE adsorption via π-π interaction. SEM-EDS, TEM, BET, VSM, XRD, FTIR, Raman, Zeta potential, and XPS techniques were used to characterize magnetic nanocomposite. The prepared Fe3O4-SiO2-2DMDPS exhibited an excellent adsorption performance towards PHE, it could maintain 75.97% adsorption capacity after four regeneration cycles. Homogeneous adsorption acted crucial role in the whole adsorption process and film diffusion was the rate-controlling procedure. Theoretical calculations put forward the most favorable bonding modes between Fe3O4-SiO2-2DMDPS and PHE molecules, confirmed the π-π interaction was valid and it usually existed in the form of parallel-displaced. This work might aid us to develop effective modification strategy for Fe3O4 nanoparticles and expand its application in the PAHs removing field.
Collapse
Affiliation(s)
- Zhengwen Wei
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang'an University, No. 126 Yanta Road, Xi'an 710054, Shaanxi, China; School of Water and Environment, Chang'an University, Xi'an 710054, China
| | - Xuedong Ma
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang'an University, No. 126 Yanta Road, Xi'an 710054, Shaanxi, China; School of Water and Environment, Chang'an University, Xi'an 710054, China
| | - Yaoyao Zhang
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang'an University, No. 126 Yanta Road, Xi'an 710054, Shaanxi, China; School of Water and Environment, Chang'an University, Xi'an 710054, China
| | - Yingmin Guo
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang'an University, No. 126 Yanta Road, Xi'an 710054, Shaanxi, China; School of Water and Environment, Chang'an University, Xi'an 710054, China
| | - Wei Wang
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang'an University, No. 126 Yanta Road, Xi'an 710054, Shaanxi, China; School of Water and Environment, Chang'an University, Xi'an 710054, China.
| | - Zhen-Yi Jiang
- Institute of Modern Physics, Northwest University, Xi'an 710054, Shaanxi, China
| |
Collapse
|
19
|
Queiroz RN, Prediger P, Vieira MGA. Adsorption of polycyclic aromatic hydrocarbons from wastewater using graphene-based nanomaterials synthesized by conventional chemistry and green synthesis: A critical review. JOURNAL OF HAZARDOUS MATERIALS 2022; 422:126904. [PMID: 34418840 DOI: 10.1016/j.jhazmat.2021.126904] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/26/2021] [Accepted: 08/11/2021] [Indexed: 06/13/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are organic pollutants formed mainly by the incomplete combustion of organic matter, such as oil, gas and coal. The presence of PAHs can cause irreparable damage to the environment and living beings, which has generated a global concern with the short and long term risks that the emission of these pollutants can cause. Many technologies have been developed in the last decades aiming at the identification and treatment of these compounds, mainly, the PAHs from wastewater. This review features an overview of studies on the main methods of PAHs remediation from wastewater, highlighting the adsorption processes, through the application of different adsorbent nanomaterials, with a main focus on graphene-based nanomaterials, synthesized by conventional and green routes. Batch and fixed-bed adsorptive processes were evaluated, as well as, the mechanisms associated with such processes, based on kinetic, equilibrium and thermodynamic studies. Based on the studies analyzed in this review, green nanomaterials showed higher efficiency in removing PAHs than the conventional nanomaterials. As perspectives for future research, the use of green nanomaterials has shown to be sustainable and promising for PAHs remediation, so that further studies are needed to overcome the possible challenges and limitations of green synthesis methodologies.
Collapse
Affiliation(s)
- Ruth Nóbrega Queiroz
- Process and Product Development Department, School of Chemical Engineering, University of Campinas - UNICAMP, Albert Einstein Avenue, 500, 13083-852 Campinas, São Paulo, Brazil
| | - Patrícia Prediger
- School of Technology, University of Campinas - UNICAMP, 13484-332 Limeira, São Paulo, Brazil
| | - Melissa Gurgel Adeodato Vieira
- Process and Product Development Department, School of Chemical Engineering, University of Campinas - UNICAMP, Albert Einstein Avenue, 500, 13083-852 Campinas, São Paulo, Brazil.
| |
Collapse
|
20
|
Chen J, Dong X, Cao S, Chen Z, Yang X, Jin J. Multiple chemical modifications and Cd 2+ adsorption characteristics of sludge-based activated carbon. RSC Adv 2022; 12:18559-18571. [PMID: 35799929 PMCID: PMC9219043 DOI: 10.1039/d2ra03268f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 06/13/2022] [Indexed: 11/21/2022] Open
Abstract
The multiple chemical modifications were carried out to achieve N-doping and pore-making to modify sludge-based activated carbon (SACU–PF′). SACU–PF′ possessed abundant functional groups and high adsorption capacity of Cd2+.
Collapse
Affiliation(s)
- Jun Chen
- School of Biology, Food and Environment, Anhui Key Laboratory of Sewage Purification and Eco-restoration Materials, Hefei University, Hefei 230601, P. R. China
- Anhui Guoke Testing Technology Co., LTD, Hefei 230041, P. R. China
| | - Xiaowan Dong
- School of Biology, Food and Environment, Anhui Key Laboratory of Sewage Purification and Eco-restoration Materials, Hefei University, Hefei 230601, P. R. China
| | - Sisi Cao
- School of Biology, Food and Environment, Anhui Key Laboratory of Sewage Purification and Eco-restoration Materials, Hefei University, Hefei 230601, P. R. China
| | - Zhaoming Chen
- School of Biology, Food and Environment, Anhui Key Laboratory of Sewage Purification and Eco-restoration Materials, Hefei University, Hefei 230601, P. R. China
| | - Xiaohong Yang
- School of Biology, Food and Environment, Anhui Key Laboratory of Sewage Purification and Eco-restoration Materials, Hefei University, Hefei 230601, P. R. China
| | - Jie Jin
- School of Biology, Food and Environment, Anhui Key Laboratory of Sewage Purification and Eco-restoration Materials, Hefei University, Hefei 230601, P. R. China
| |
Collapse
|
21
|
Yan Q, Huang L, Mao N, Shuai Q. Covalent organic framework derived porous carbon as effective coating for solid phase microextraction of polycyclic aromatic hydrocarbons prior to gas-chromatography mass spectrometry analysis. TALANTA OPEN 2021. [DOI: 10.1016/j.talo.2021.100060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
22
|
Liao C, Liu YP, Ren H, Jiang XY, Yu JG, Chen XQ. Rational assembly of GO-based heterocyclic sulfur- and nitrogen-containing aerogels and their adsorption properties toward rare earth elementals. JOURNAL OF HAZARDOUS MATERIALS 2021; 419:126484. [PMID: 34186427 DOI: 10.1016/j.jhazmat.2021.126484] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 06/17/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
An aromatic heterocyclic compound, 2-aminobenzothiazole (ABT), was used to decorate graphene oxide (GO) by a facile hydrothermal self-assembly procedure. The developed three-dimensional (3D) GO-ABT composite aerogels could be utilized as high-powered and sustainable adsorbents for the enrichment and recovery of low concentration rare earth elements (REEs) from aqueous solutions. The composition and microstructure of GO-ABT composites were explored various characterization methods. The enrichment properties of GO-ABT composites for REEs were investigated in detail, revealing the existence of S-, N- and -NH2 in ABT, as well as the carboxyl and hydroxyl groups of GO which might act as the major REE binding sites. The adsorption of GO-ABT composites for low concentration REEs could reach equilibrium in 30 min. Our investigations confirmed that the optimal pH value of GO-ABT composites for REEs was pH 4.0-5.0. For the adsorbent regeneration study, 50.0 mg of GO-ABT15:1/120 °C/6 h composite was used toward 20.0 mL of Er3+ solutions. After ten regeneration cycles, the adsorption rates of GO-ABT composites for Er3+ remained around 100%, and the desorption rates maintained over 90%. The long-term storage of the adsorbent did not affect its adsorption ability, while desorption rates increased, indicating it possessed relatively higher stability.
Collapse
Affiliation(s)
- Cong Liao
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Yi-Ping Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Hao Ren
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Xin-Yu Jiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Jin-Gang Yu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China.
| | - Xiao-Qing Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| |
Collapse
|
23
|
Ultra-fast adsorption of four typical pollutants using magnetically separable ethanolamine-functionalized graphene. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118862] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
24
|
Song T, Tian W, Zhao J, Qiao K, Zou M, Chu M. N-doped Reduced Graphene Oxide nanocomposites encapsulated sodium alginate/polyvinyl alcohol microspheres for anthracene and its oxygenated-PAH removal in aqueous solution. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.06.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
25
|
Yi P, Zuo X, Lang D, Wu M, Dong W, Chen Q, Zhang L. Competitive adsorption of methanol co-solvent and dioctyl phthalate on functionalized graphene sheet: Integrated investigation by molecular dynamics simulations and quantum chemical calculations. J Colloid Interface Sci 2021; 605:354-363. [PMID: 34332409 DOI: 10.1016/j.jcis.2021.07.086] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/05/2021] [Accepted: 07/16/2021] [Indexed: 12/14/2022]
Abstract
HYPOTHESIS Organic co-solvents, which are universally employed in adsorption studies of hydrophobic organic chemicals (HOCs), can inhibit HOC adsorption by competing for active sites on the adsorbent. The adsorbent structure can influence co-solvent interference of HOC adsorption; however, this effect remains unclear, leading to an incomplete understanding of the adsorption mechanism. EXPERIMENTS In this study, dioctyl phthalate (DOP) was used to investigate competitive adsorption on functionalized graphene sheet in a water-methanol co-solvent system through molecular dynamics simulations and quantum chemical calculations. FINDINGS The simulations showed that the functional groups in the graphene defects had a strong adsorption affinity for methanol. The adsorbed methanol occupied a large number of active sites at the graphene center, thereby weakening DOP adsorption. However, the methanol adsorbed at the graphene edges could not compete with DOP for the active sites. -COOH had the strongest binding affinity for methanol among the functional groups and thus predominantly controlled the interaction between graphene and methanol. This study makes an innovative contribution toward understanding the competitive adsorption of methanol and DOP on functionalized graphene sheet, especially in visualizing the competition for active sites, and provides theoretical guidance for the removal of HOCs and practical application of graphene.
Collapse
Affiliation(s)
- Peng Yi
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, China
| | - Xiangzhi Zuo
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, China
| | - Di Lang
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, China
| | - Min Wu
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, China
| | - Wei Dong
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, China
| | - Quan Chen
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, China.
| | - Lijuan Zhang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| |
Collapse
|
26
|
Li J, Zhao B, Guo L, Wang Z, Wang C, Wang Z, Zhang S, Wu Q. Synthesis of hypercrosslinked polymers for efficient solid-phase microextraction of polycyclic aromatic hydrocarbons and their derivatives followed by gas chromatography-mass spectrometry determination. J Chromatogr A 2021; 1653:462428. [PMID: 34329956 DOI: 10.1016/j.chroma.2021.462428] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 12/24/2022]
Abstract
Three novel hypercrosslinked polymers (HCPs) were synthesized via Friedel-Crafts reaction employing 1,3,5-tris(bromomethyl)-2,4,6-trimethylbenzene as alkylating agent, and triphenylbenzene, tetraphenylethylene and p-quaterphenyl as the aromatic units, respectively. The prepared HCPs were applied as solid-phase microextraction coatings for direct immersion extraction of polycyclic aromatic hydrocarbons (PAHs) and their oxygenated and nitrated derivatives in environmental water samples. The key factors affecting the extraction efficiency including extraction time, extraction temperature, stirring rate, ionic strength and desorption conditions, were carefully studied. Coupled with gas chromatography mass spectrometry analysis, a new method for determining PAHs and their derivatives was developed. Under the optimized conditions, the limits of detection (S/N=3) and limits of quantitation (the lowest concentration for quantification) of the method were in the range of 2.5-25.0 and 7.5-75.0 ng L-1, respectively. The recoveries of spiked samples were in the range of 73.1-118.3% with relative standard deviations less than 13.0%. The developed method was applied for the simultaneous determination of nine PAHs and their derivatives in environmental water samples, showing good accuracy and reliability.
Collapse
Affiliation(s)
- Jinqiu Li
- College of Science, Hebei Agricultural University, Baoding 071001, China
| | - Bin Zhao
- College of Science, Hebei Agricultural University, Baoding 071001, China
| | - Liying Guo
- College of Science, Hebei Agricultural University, Baoding 071001, China
| | - Zhuo Wang
- College of Science, Hebei Agricultural University, Baoding 071001, China
| | - Chun Wang
- College of Science, Hebei Agricultural University, Baoding 071001, China
| | - Zhi Wang
- College of Science, Hebei Agricultural University, Baoding 071001, China; College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China
| | - Shuaihua Zhang
- College of Science, Hebei Agricultural University, Baoding 071001, China.
| | - Qiuhua Wu
- College of Science, Hebei Agricultural University, Baoding 071001, China; College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China.
| |
Collapse
|
27
|
Qian F, Yin H, Liu F, Sheng J, Gao S, Shen Y. The in situ catalytic oxidation of sulfamethoxazole via peroxydisufate activation operated in a NG/rGO/CNTs composite membrane filtration. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:26828-26839. [PMID: 33496953 DOI: 10.1007/s11356-021-12545-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 01/14/2021] [Indexed: 06/12/2023]
Abstract
Metal-free carbonaceous composite membranes have been proven to effectively drive novel in situ catalytic oxidation for the degradation of organic pollutants via persulfates activation. In this study, nitrogen-doped graphene (NG) was employed as a modifier to enhance the catalytic activity of the carbon mats by assembly with reduced graphene oxide (rGO) and carbon nanotubes (CNTs) on the top of a nylon supporter. The morphology and performance of the NG/rGO/CNTs composite membrane were compared to those obtained without the addition of NG (rGO/CNTs). Owing to the larger nanochannels for water delivery and stronger hydrophobicity on the surface, the NG/rGO/CNTs composite membrane shows a superior low-pressure filtration performance in favor of energy-saving operation. For the in situ catalytic oxidation of the NG/rGO/CNTs composite membrane through the activation of peroxydisufate (PDS), the average removal rate of sulfamethoxazole (SMX), one of frequently detected sulfonamide antibiotics in water, can reach 21.7 mg·m-2·h-1 under continuous filtration mode, which was 17% more rapid than that of the rGO/CNTs, resulting in significant detoxifying of the oxidation intermediates. Owing to the addition of NG into the carbon mats, the reactive nitrogen-doped sites identified by X-Ray photoelectron spectroscopy (XPS), such as pyridinic and graphitic N, played important roles in PDS activation, while both the radical and non-radical pathways were involved in in situ catalytic oxidation. According to the experimental evidence of the effects that solution environment has on the SMX removal and transmembrane pressure, the NG/rGO/CNTs composite membrane shows a relatively high resistance to changes in the solution pH, chloride ion inhibition, and background organics fouling. These results suggest a new approach to the application of activated persulfate oxidation in water treatment, such that improvements to the reaction stability warrant further investigation.
Collapse
Affiliation(s)
- Feiyue Qian
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, No. 1 Kerui Road, Suzhou, 215009, People's Republic of China.
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, No. 1 Kerui Road, Suzhou, 215009, People's Republic of China.
| | - Honggui Yin
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, No. 1 Kerui Road, Suzhou, 215009, People's Republic of China
| | - Feng Liu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, No. 1 Kerui Road, Suzhou, 215009, People's Republic of China
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, No. 1 Kerui Road, Suzhou, 215009, People's Republic of China
| | - Jiayi Sheng
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, No. 1 Kerui Road, Suzhou, 215009, People's Republic of China
| | - Shiqian Gao
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, No. 1 Kerui Road, Suzhou, 215009, People's Republic of China
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, No. 1 Kerui Road, Suzhou, 215009, People's Republic of China
| | - Yaoliang Shen
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, No. 1 Kerui Road, Suzhou, 215009, People's Republic of China
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, No. 1 Kerui Road, Suzhou, 215009, People's Republic of China
| |
Collapse
|
28
|
Mohammed R, Zhang ZF, Jiang C, Hu YH, Liu LY, Ma WL, Song WW, Nikolaev A, Kallenborn R, Li YF. Occurrence, Removal, and Mass Balance of Polycyclic Aromatic Hydrocarbons and Their Derivatives in Wastewater Treatment Plants in Northeast China. TOXICS 2021; 9:toxics9040076. [PMID: 33918398 PMCID: PMC8066243 DOI: 10.3390/toxics9040076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 11/16/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs), 33 methylated PAHs (Me-PAHs), and 14 nitrated PAHs (NPAHs) were measured in wastewater treatment plants (WWTPs) to study the removal efficiency of these compounds through the WWTPs, as well as their source appointment and potential risk in the effluent. The concentrations of ∑PAHs, ∑Me-PAHs, and ∑NPAHs were 2.01–8.91, 23.0–102, and 6.21–171 µg/L in the influent, and 0.17–1.37, 0.06–0.41 and 0.01–2.41 µg/L in the effluent, respectively. Simple Treat 4.0 and meta-regression methods were applied to calculate the removal efficiencies (REs) for the 63 PAHs and their derivatives in 10 WWTPs and the results were compared with the monitoring data. Overall, the ranges of REs were 55.3–95.4% predicated by the Simple Treat and 47.5–97.7% by the meta-regression. The results by diagnostic ratios and principal component analysis PCA showed that “mixed source” biomass, coal composition, and petroleum could be recognized to either petrogenic or pyrogenic sources. The risk assessment of the effluent was also evaluated, indicating that seven carcinogenic PAHs, Benzo[a]pyrene, Dibenz[a,h]anthracene, and Benzo(a)anthracene were major contributors to the toxics equivalency concentrations (TEQs) in the effluent of WWTPs, to which attention should be paid.
Collapse
Affiliation(s)
- Rashid Mohammed
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (HIT), Harbin 150090, China; (R.M.); (L.-Y.L.); (W.-L.M.); (W.-W.S.); (R.K.)
- International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, School of Environment, Harbin Institute of Technology (HIT), Harbin 150090, China
- Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China
| | - Zi-Feng Zhang
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (HIT), Harbin 150090, China; (R.M.); (L.-Y.L.); (W.-L.M.); (W.-W.S.); (R.K.)
- International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, School of Environment, Harbin Institute of Technology (HIT), Harbin 150090, China
- Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China
- Correspondence: or (Z.-F.Z.); or (Y.-F.L.); Tel.: +86-451-8628-9130 (Z.-F.Z.)
| | - Chao Jiang
- Heilongjiang Institute of Labor Hygiene and Occupational Diseases, Harbin 150028, China; (C.J.); (Y.-H.H.)
| | - Ying-Hua Hu
- Heilongjiang Institute of Labor Hygiene and Occupational Diseases, Harbin 150028, China; (C.J.); (Y.-H.H.)
| | - Li-Yan Liu
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (HIT), Harbin 150090, China; (R.M.); (L.-Y.L.); (W.-L.M.); (W.-W.S.); (R.K.)
- International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, School of Environment, Harbin Institute of Technology (HIT), Harbin 150090, China
- Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China
| | - Wan-Li Ma
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (HIT), Harbin 150090, China; (R.M.); (L.-Y.L.); (W.-L.M.); (W.-W.S.); (R.K.)
- International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, School of Environment, Harbin Institute of Technology (HIT), Harbin 150090, China
- Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China
| | - Wei-Wei Song
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (HIT), Harbin 150090, China; (R.M.); (L.-Y.L.); (W.-L.M.); (W.-W.S.); (R.K.)
- International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, School of Environment, Harbin Institute of Technology (HIT), Harbin 150090, China
- Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China
| | - Anatoly Nikolaev
- Institute of Natural Sciences, North-Eastern Federal University, 677000 Yakutsk, Russia;
| | - Roland Kallenborn
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (HIT), Harbin 150090, China; (R.M.); (L.-Y.L.); (W.-L.M.); (W.-W.S.); (R.K.)
- International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, School of Environment, Harbin Institute of Technology (HIT), Harbin 150090, China
- Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China
- Faculty of Chemistry, Biotechnology & Food Sciences (KBM), Norwegian University of Life Sciences (NMBU), 1432 Ås, Norway
| | - Yi-Fan Li
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (HIT), Harbin 150090, China; (R.M.); (L.-Y.L.); (W.-L.M.); (W.-W.S.); (R.K.)
- International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, School of Environment, Harbin Institute of Technology (HIT), Harbin 150090, China
- Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China
- IJRC-PTS-NA, Toronto, ON M2N 6X9, Canada
- Correspondence: or (Z.-F.Z.); or (Y.-F.L.); Tel.: +86-451-8628-9130 (Z.-F.Z.)
| |
Collapse
|
29
|
Zhang Z, Wang G, Li W, Zhang L, Guo B, Ding L, Li X. Photocatalytic Activity of Magnetic Nano-β-FeOOH/Fe 3O 4/Biochar Composites for the Enhanced Degradation of Methyl Orange Under Visible Light. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:526. [PMID: 33670815 PMCID: PMC7923089 DOI: 10.3390/nano11020526] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/14/2021] [Accepted: 02/16/2021] [Indexed: 01/22/2023]
Abstract
A novel nano-β-FeOOH/Fe3O4/biochar composite with enhanced photocatalytic performance and superparamagnetism was successfully fabricated via an environmentally friendly one-step method. The structural properties of the prepared composite were characterized by scanning electron microscopy, transmission electron microscopy, energy-dispersive spectroscopy, X-ray photoelectron spectroscopy, and a vibrating sample magnetometer. The XPS spectrum of the as-prepared composites confirmed the presence of Fe-O-C bonds between β-FeOOH and biochar, which could be conducive to transfer photo-generated electrons. UV-vis spectroscopy confirmed the existence of an electron-hole connection between β-FeOOH and biochar, which promoted the rapid interface transfer of photogenerated electrons from β-FeOOH to biochar. These novel structures could enhance the response of biochar to accelerate the photoelectrons under visible light for more free radicals. Electron spin resonance analysis and free radical quenching experiments showed that •OH was the primary active species in the photodegradation process of methyl orange by nano-β-FeOOH/Fe3O4/biochar. In the synergistic photocatalytic system, β-FeOOH/Fe3O4/biochar exhibited excellent catalytic activity for the degradation of azo dye (methyl orange), which is 2.03 times higher than that of the original biochar, while the surface area decreased from 1424.82 to 790.66 m2·g-1. Furthermore, β-FeOOH/Fe3O4/biochar maintained a stable structure and at least 98% catalytic activity after reuse, and it was easy to separate due to its superparamagnetism. This work highlights the enhanced photocatalytic performance of β-FeOOH/Fe3O4/biochar material, which can be used in azo dye wastewater treatment.
Collapse
Affiliation(s)
- Zheng Zhang
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; (Z.Z.); (G.W.); (L.Z.); (B.G.); (L.D.)
- Research Center for Green and Intelligent Coal Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Guanghua Wang
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; (Z.Z.); (G.W.); (L.Z.); (B.G.); (L.D.)
- Research Center for Green and Intelligent Coal Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Wenbing Li
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; (Z.Z.); (G.W.); (L.Z.); (B.G.); (L.D.)
- Research Center for Green and Intelligent Coal Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Lidong Zhang
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; (Z.Z.); (G.W.); (L.Z.); (B.G.); (L.D.)
- Research Center for Green and Intelligent Coal Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Benwei Guo
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; (Z.Z.); (G.W.); (L.Z.); (B.G.); (L.D.)
| | - Ling Ding
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; (Z.Z.); (G.W.); (L.Z.); (B.G.); (L.D.)
| | - Xiangcheng Li
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
| |
Collapse
|