1
|
Zhang B, Zhu W, Hou R, Yue Y, Feng J, Ishag A, Wang X, Qin Y, Sun Y. Recent advances of application of bentonite-based composites in the environmental remediation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 362:121341. [PMID: 38824894 DOI: 10.1016/j.jenvman.2024.121341] [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: 02/25/2024] [Revised: 05/11/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024]
Abstract
Bentonite-based composites have been widely utilized in the removal of various pollutants due to low cost, environmentally friendly, ease-to-operate, whereas the recent advances concerning the application of bentonite-based composites in environmental remediation were not available. Herein, the modification (i.e., acid/alkaline washing, thermal treatment and hybrids) of bentonite was firstly reviewed; Then the recent advances of adsorption of environmental concomitants (e.g., organic (dyes, microplastics, phenolic and other organics) and inorganic pollutants (heavy metals, radionuclides and other inorganic pollutants)) on various bentonite-based composites were summarized in details. Meanwhile, the effect of environmental factors and interaction mechanism between bentonite-based composites and contaminants were also investigated. Finally, the conclusions and prospective of bentonite-based composites in the environmental remediation were proposed. It is demonstrated that various bentonite-based composites exhibited the high adsorption/degradation capacity towards environmental pollutants under the specific conditions. The interaction mechanism involved the mineralization, physical/chemical adsorption, co-precipitation and complexation. This review highlights the effect of different functionalization of bentonite-based composites on their adsorption capacity and interaction mechanism, which is expected to be helpful to environmental scientists for applying bentonite-based composites into practical environmental remediation.
Collapse
Affiliation(s)
- Bo Zhang
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China; Research Center of Applied Geology of China Geological Survery, Chengdu, 610036, PR China
| | - Weiyu Zhu
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Rongbo Hou
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Yanxue Yue
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Jiashuo Feng
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Alhadi Ishag
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China; Department of Chemical Engineering, Faculty of Engineering and Technical Studies, University of Kordofan, El Obeid, 51111, Sudan
| | - Xiao Wang
- Research Center of Applied Geology of China Geological Survery, Chengdu, 610036, PR China
| | - Yan Qin
- Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing, 100037, PR China.
| | - Yubing Sun
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China.
| |
Collapse
|
2
|
Hatvani-Nagy AF, Hajdu V, Ilosvai ÁM, Muránszky G, Sikora E, Kristály F, Daróczi L, Viskolcz B, Fiser B, Vanyorek L. Bentonite as eco-friendly natural mineral support for Pd/CoFe 2O 4 catalyst applied in toluene diamine synthesis. Sci Rep 2024; 14:4193. [PMID: 38378814 PMCID: PMC10879086 DOI: 10.1038/s41598-024-54792-5] [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: 11/25/2023] [Accepted: 02/16/2024] [Indexed: 02/22/2024] Open
Abstract
Toluene diamine (TDA) is a major raw material in the polyurethane industry and thus, its production is highly important. TDA is obtained through the catalytic hydrogenation of 2,4-dinitrotoluene (2,4-DNT). In this study a special hydrogenation catalyst has been developed by decomposition cobalt ferrite nanoparticles onto a natural clay-oxide nanocomposite (bentonite) surface using a microwave-assisted solvothermal method. The catalyst particles were examined by TEM and X-ray diffraction. The palladium immobilized on the bentonite crystal surface was identified using an XRD and HRTEM device. The obtained catalyst possesses the advantageous property of being easily separable due to its magnetizability on a natural mineral support largely available and obtained through low carbon- and energy footprint methods. The catalyst demonstrated outstanding performance with a 2,4-DNT conversion rate exceeding 99% along with high yields and selectivity towards 2,4-TDA and all of this achieved within a short reaction time. Furthermore, the developed catalyst exhibited excellent stability, attributed to the strong interaction between the catalytically active metal and its support. Even after four cycles of reuse, the catalytic activity remained unaffected and the Pd content of the catalyst did not change, which indicates that the palladium component remained firmly attached to the magnetic support's surface.
Collapse
Affiliation(s)
- Alpár F Hatvani-Nagy
- Higher Education and Industrial Cooperation Centre, University of Miskolc, Miskolc-Egyetemváros, 3515, Hungary
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, 3515, Hungary
| | - Viktória Hajdu
- Higher Education and Industrial Cooperation Centre, University of Miskolc, Miskolc-Egyetemváros, 3515, Hungary
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, 3515, Hungary
| | - Ágnes Mária Ilosvai
- Higher Education and Industrial Cooperation Centre, University of Miskolc, Miskolc-Egyetemváros, 3515, Hungary
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, 3515, Hungary
| | - Gábor Muránszky
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, 3515, Hungary
| | - Emőke Sikora
- Higher Education and Industrial Cooperation Centre, University of Miskolc, Miskolc-Egyetemváros, 3515, Hungary
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, 3515, Hungary
| | - Ferenc Kristály
- Institute of Mineralogy and Geology, University of Miskolc, 3515, Miskolc-Egyetemváros, Hungary
| | - Lajos Daróczi
- Department of Solid State Physics, University of Debrecen, P.O. Box 2, Debrecen, 4010, Hungary
| | - Béla Viskolcz
- Higher Education and Industrial Cooperation Centre, University of Miskolc, Miskolc-Egyetemváros, 3515, Hungary
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, 3515, Hungary
| | - Béla Fiser
- Higher Education and Industrial Cooperation Centre, University of Miskolc, Miskolc-Egyetemváros, 3515, Hungary.
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, 3515, Hungary.
- Ferenc Rakoczi II Transcarpathian Hungarian College of Higher Education, Beregszász, 90200, Ukraine.
- Department of Physical Chemistry, Faculty of Chemistry, University of Lodz, 90-236, Lodz, Poland.
| | - László Vanyorek
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, 3515, Hungary.
| |
Collapse
|
3
|
Xie C, Lu W, Wang H, Wang X, Yu T. Temperature-humidity evolution and radon exhalation mechanism of red clay-bentonite covering layer in uranium mill tailings pond. Sci Rep 2024; 14:2476. [PMID: 38291042 PMCID: PMC10827743 DOI: 10.1038/s41598-023-50733-w] [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: 06/28/2023] [Accepted: 12/24/2023] [Indexed: 02/01/2024] Open
Abstract
To ensure the safety and stability of the beach surface of the decommissioned uranium mill tailings pond, this paper uses red clay-bentonite and red clay (1:1) to carry out covering layer radon reduction simulation experiments to study the temperature, humidity, and radon reduction effect of the covering layer under natural conditions. The results show that the radon exhalation rate of red clay-bentonite cover layer is only 0.32 times that of red clay, which has a better radon reduction effect. The red clay-bentonite cover layer has better water retention and comparable heat preservation effect than red clay cover layer. The red clay-bentonite and red clay temperature curves follow the same evolution trend and were close together in the same outdoor conditions, and the humidity curves showed a difference of 1% to 3%. Soil temperature is the dominant factor affecting the variation of radon exhalation of red clay-bentonite and red clay covering layer with unsaturated water content.
Collapse
Affiliation(s)
- Chao Xie
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China
- School of Resources, Environmental and Safety Engineering, University of South China, Hengyang, 421001, China
- Key Laboratory of Advanced Nuclear Energy Technology Design and Safety Ministry of Education, University of South China, Hengyang, 421001, China
| | - Wenjun Lu
- School of Resources, Environmental and Safety Engineering, University of South China, Hengyang, 421001, China
| | - Hong Wang
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China.
- School of Resources, Environmental and Safety Engineering, University of South China, Hengyang, 421001, China.
| | - Xiangshuai Wang
- School of Resources, Environmental and Safety Engineering, University of South China, Hengyang, 421001, China
| | - Tao Yu
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China
- Key Laboratory of Advanced Nuclear Energy Technology Design and Safety Ministry of Education, University of South China, Hengyang, 421001, China
| |
Collapse
|
4
|
Wu L, Kang Y, Shi X, Yang E, Ma J, Zhang X, Wang S, Wu ZS. A Biodegradable High-Performance Microsupercapacitor for Environmentally Friendly and Biocompatible Energy Storage. ACS NANO 2023; 17:22580-22590. [PMID: 37961989 DOI: 10.1021/acsnano.3c06442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Biodegradable and biocompatible microscale energy storage devices are very crucial for environmentally friendly microelectronics and implantable medical applications. Herein, a biodegradable and biocompatible microsupercapacitor (BB-MSC) with satisfying overall performance is realized via the combination of three-dimensional (3D) printing technique and biodegradable materials. Due to the 3D-interconnected structure of electrodes and elaborated design of electrolyte, the as-prepared BB-MSC exhibits superior overall performance than most of biodegradable devices, including a wide operation voltage of 1.8 V, high areal specific capacitance of 251 mF/cm2, good cycle stability, and favorable low-temperature resistance (-20 °C), demonstrative of reliability and practicality of our devices even in frosty environments. Importantly, the smooth degradation has been realized for the BB-MSC after being buried in natural soil for ∼90 days, and its implantation does not affect the healthy status of SD rats. Therefore, this work explores avenues for the design and construction of environmentally friendly and biocompatible microscale energy storage devices.
Collapse
Affiliation(s)
- Lu Wu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yue Kang
- Department of Breast Surgery, Cancer Hospital of Dalian University of Technology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - Xiaoyu Shi
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Endian Yang
- School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116024, China
| | - Jiaxin Ma
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, 19 A Yuquan Road, Shijingshan District, Beijing 100049, China
| | - Xinfeng Zhang
- Department of Breast Surgery, Cancer Hospital of Dalian University of Technology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - Shaoxu Wang
- School of Environment and Chemical Engineering, Dalian Jiaotong University, Dalian 116024, China
| | - Zhong-Shuai Wu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- Dalian National Laboratory for Clean Energy, Chinese Academy of Sciences, Dalian 116023, China
| |
Collapse
|
5
|
Li Z, Huang F, Yang Y, Xiong Y, Su F, Wang Y, Tian X. Improving the Anti-washout Property of Acrylate Grouting Material by Bentonite: Its Characterization, Improving Mechanism, and Practical Application. Polymers (Basel) 2023; 15:3865. [PMID: 37835914 PMCID: PMC10575180 DOI: 10.3390/polym15193865] [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: 08/29/2023] [Revised: 09/18/2023] [Accepted: 09/18/2023] [Indexed: 10/15/2023] Open
Abstract
Acrylate is a popular polymer grouting material that has been widely used to control groundwater seepage. However, the vulnerability of acrylate slurry to dynamic water washout restricts its application in groundwater environments characterized by high flow velocity and water pressures. In this paper, lithium bentonite (Li-B) was used to modify the traditional magnesium acrylate (AC) grouting material. The influence of Li-B to AC ratios on the modified materials' washout resistance was explored, and the modification mechanism was analyzed using X-ray diffraction (XRD), infrared spectroscopy (IR), and scanning electron microscopy (SEM). Finally, the anti-washout ability of the modified slurry was verified through engineering applications. Results revealed that LiB-AC grout had adjustable setting times (10.5 to 395.6 s), minimal bleeding (0.1%), higher viscosity (65 mPa·s) and expansibility (350%), stronger anti-water dispersibility (24 times that of pure AC slurry), higher mechanical strength (compressive strength is 0.386 MPa, tensile strength is 0.088 MPa), and better impermeability (2.23 × 10-8 m/s). The lithium bentonite was beneficial to the setting time, bleeding, viscosity, slurry retention rate, impermeability, and mechanical strength of the acrylate grout. However, it diminished the expansibility of the acrylate grout. At the optimal acrylate content (20%), the mechanical strength and impermeability of the LiB-AC grout were the highest. The better performance of LiB-AC grout was attributed to the formation of a more stable and dense interlaced spatial network structure after the modification by Li-B. The LiB-AC grout was used in the dynamic water grouting project of a metro shield tunnel segment and achieved better anti-washout performance than cement-water glass and pure AC slurry.
Collapse
Affiliation(s)
- Zuochun Li
- School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China; (Z.L.); (Y.Y.); (Y.X.); (Y.W.); (X.T.)
| | - Feng Huang
- School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China; (Z.L.); (Y.Y.); (Y.X.); (Y.W.); (X.T.)
| | - Yuyou Yang
- School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China; (Z.L.); (Y.Y.); (Y.X.); (Y.W.); (X.T.)
| | - Yifan Xiong
- School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China; (Z.L.); (Y.Y.); (Y.X.); (Y.W.); (X.T.)
| | - Fei Su
- China Institute of Nuclear Industry Strategy, Beijing 100045, China;
| | - Yajian Wang
- School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China; (Z.L.); (Y.Y.); (Y.X.); (Y.W.); (X.T.)
| | - Xiao Tian
- School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China; (Z.L.); (Y.Y.); (Y.X.); (Y.W.); (X.T.)
| |
Collapse
|
6
|
Wei X, Zhang C, Gong D, Tu M, Wu L, Chen W, Zhang C. A Study on the Impermeability of Nanodispersible Modified Bentonite Based on Colloidal Osmotic Pressure Mechanisms and the Adsorption of Harmful Substances. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1840. [PMID: 37368270 DOI: 10.3390/nano13121840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 06/05/2023] [Accepted: 06/08/2023] [Indexed: 06/28/2023]
Abstract
With the growing demands of human beings, sanitary landfill, along with the increase in landfill depth and leachate water pressure, has put forward new and higher requirements for the impermeable layer. In particular, it is required to have a certain adsorption capacity of harmful substances from the perspective of environmental protection. Hence, the impermeability of polymer bentonite-sand mixtures (PBTS) at different water pressure and the adsorption properties of polymer bentonite (PBT) on contaminants were investigated through the modification of PBT using betaine compounded with sodium polyacrylate (SPA). It was found that the composite modification of betaine and SPA could reduce the average particle size of PBT dispersed in water (reduced to 106 nm from 201 nm) and enhance the swelling properties. As the content of SPA increased, the hydraulic conductivity of PBTS system decreases and the permeability resistance improves, while the resistance to external water pressure increases. It is proposed a concept of the potential of osmotic pressure in a constrained space to explain the impermeability mechanism of PBTS. The potential of osmotic pressure obtained by linear extrapolation of the trendline of colloidal osmotic pressure versus mass content of PBT could represent the external water pressure that the PBT resist. Additionally, the PBT also has a high adsorption capacity for both organic pollutants and heavy metal ions. The adsorption rate of PBT was up to 99.36% for phenol; up to 99.9% for methylene blue; and 99.89%, 99.9%, and 95.7% for low concentrations of Pb2+, Cd2+, and Hg+, respectively. This work is expected to provide strong technical support for the future development in the field of impermeability and removal of hazardous substances (organic and heavy metals).
Collapse
Affiliation(s)
- Xi Wei
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Chunyang Zhang
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Depeng Gong
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Mengdong Tu
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Lili Wu
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Wanyu Chen
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Chaocan Zhang
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| |
Collapse
|
7
|
Nganda A, Srivastava P, Lamba BY, Pandey A, Kumar M. Advances in the fabrication, modification, and performance of biochar, red mud, calcium oxide, and bentonite catalysts in waste-to-fuel conversion. ENVIRONMENTAL RESEARCH 2023:116284. [PMID: 37270078 DOI: 10.1016/j.envres.2023.116284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 05/21/2023] [Accepted: 05/29/2023] [Indexed: 06/05/2023]
Abstract
Various catalysts are being used in fuel production from biomass and polymeric waste for the obtention of an alternative energy source with both environmental friendliness and economic viability. Biochar, red mud bentonite, and calcium oxide have been shown to play a pertinent role as catalysts in waste-to-fuel conversion processes, such as transesterification and pyrolysis. In this line of thought, this paper has provided a compendium of the fabrication and modification technologies of bentonite, red mud calcium oxide, and biochar, together with their various performances in their application in the waste-to-fuel processes. Additionally, an overview of the structural and chemical attributes of these components is discussed regarding their efficiency. Ultimately, research trends and future points of focus are evaluated, and it is observed that techno-economic optimization of catalyst synthetic routes and investigation of new catalytic formulations, such as biochar and red mud-based nanocatalysts, are potential prospects. This report also offers future research directions that are anticipated to contribute to the development of sustainable green fuel generation systems.
Collapse
Affiliation(s)
- Armel Nganda
- School of Engineering, University of Petroleum and Energy Studies, Dehradun, 248007, India
| | - Pankaj Srivastava
- Energy Cluster, School of Engineering, University of Petroleum and Energy Studies, Dehradun, 248007, India
| | - Bhawna Yadav Lamba
- Applied Science Cluster, School of Engineering, University of Petroleum and Energy Studies, Dehradun, 248007, India
| | - Ashok Pandey
- CSIR-Indian Institute for Toxicology Research, Lucknow, India; Sustainability Cluster, School of Engineering, University of Petroleum and Energy Studies, Dehradun, 248007, India
| | - Manish Kumar
- Sustainability Cluster, School of Engineering, University of Petroleum and Energy Studies, Dehradun, 248007, India; Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterey, Monterrey, 64849, Nuevo Leon, Mexico.
| |
Collapse
|
8
|
Heydari A, KhajeHassani M, Daneshafruz H, Hamedi S, Dorchei F, Kotlár M, Kazeminava F, Sadjadi S, Doostan F, Chodak I, Sheibani H. Thermoplastic starch/bentonite clay nanocomposite reinforced with vitamin B 2: Physicochemical characteristics and release behavior. Int J Biol Macromol 2023; 242:124742. [PMID: 37148934 DOI: 10.1016/j.ijbiomac.2023.124742] [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: 02/12/2023] [Revised: 04/03/2023] [Accepted: 05/01/2023] [Indexed: 05/08/2023]
Abstract
This study presents the development and characterization of a nanocomposite material, consisting of thermoplastic starch (TPS) reinforced with bentonite clay (BC) and encapsulated with vitamin B2 (VB). The research is motivated by the potential of TPS as a renewable and biodegradable substitute for petroleum-based materials in the biopolymer industry. The effects of VB on the physicochemical properties of TPS/BC films, including mechanical and thermal properties, water uptake, and weight loss in water, were investigated. In addition, the surface morphology and chemical composition of the TPS samples were analyzed using high-resolution SEM microscopy and EDS, providing insight into the structure-property relationship of the nanocomposites. The results showed that the addition of VB significantly increased the tensile strength and Young's modulus of TPS/BC films, with the highest values observed for nanocomposites containing 5 php of VB and 3 php of BC. Furthermore, the release of VB was controlled by the BC content, with higher BC content leading to lower VB release. These findings demonstrate the potential of TPS/BC/VB nanocomposites as environmentally friendly materials with improved mechanical properties and controlled release of VB, which can have significant applications in the biopolymer industry.
Collapse
Affiliation(s)
- Abolfazl Heydari
- Polymer Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 84541 Bratislava, Slovakia; National Institute of Rheumatic Diseases, Nábrežie I. Krasku 4782/4, 921 12 Piešťany, Slovakia.
| | - Milad KhajeHassani
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman 76169, Iran
| | - Haniyeh Daneshafruz
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman 76169, Iran
| | - Sepideh Hamedi
- Faculty of New Technologies Engineering, Shahid Beheshti University, Tehran, Iran
| | - Faeze Dorchei
- Polymer Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 84541 Bratislava, Slovakia
| | - Mário Kotlár
- Centre for Nanodiagnostics of Materials, Faculty of Materials Science and Technology, Slovak University of Technology, Vazovova 5, Bratislava 81243, Slovakia
| | - Fahimeh Kazeminava
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Samahe Sadjadi
- Gas Conversion Department, Faculty of Petrochemicals, Iran polymer and Petrochemical Institute, PO Box 14975-112, Tehran, Iran
| | - Farideh Doostan
- Endocrinology and Metabolism Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Ivan Chodak
- Polymer Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 84541 Bratislava, Slovakia
| | - Hassan Sheibani
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman 76169, Iran
| |
Collapse
|
9
|
Pillarization of Sumatera Bentonite by Sodium-assisted As Effective Adsorbent of Anionic Surfactants Sodium Lauryl Sulphate (SLS) Waste. BULLETIN OF CHEMICAL REACTION ENGINEERING & CATALYSIS 2023. [DOI: 10.9767/bcrec.16500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
In this work, the Sumatera bentonite was sodium-pillarized in a new low-temperature and restricted time preparation route and then applied in anionic surfactant sodium lauryl sulphate removal. Structure characterization used Fourier Transform Infra Red (FT-IR), Scanning Electron Microscope - Energy Dispersive X-ray (SEM-EDX), X-ray Diffraction (XRD), and Brunauer–Emmett–Teller (BET) analysis. A strong peak at 22° and 35.66° in XRD analysis was detected as Sodium-pillar that increased crystallinity, then the functional changes of dehydration in lattice structure were detected in 1013 cm−1 by FTIR analysis. The morphology and compositional transformation were analyzed by SEM-EDX and BET analysis, denoted by increasing particle shape and sodium intercalant composition homogeneity. Moreover, the surface area increased from 61.791 to 66.086 m2/g. The sodium lauryl sulphate adsorption by bentonite-Na reached maximum capacity at 8.403 mg/g, which is higher than the pristine bentonite (5.747 mg/g) under the optimum condition. The adsorption mechanism is feasible, endothermic, and conformed to the pseudo-second-order and Freundlich adsorption model. The new route proposed for sodium intercalation effectively improves the Sumatera bentonite adsorption ability to remove sodium lauryl sulphate waste. Copyright © 2023 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Collapse
|
10
|
Zhu Z, Kou H, Zhou Y, Lan X, Yu M, Chen H. Preparation of Amphiphilic Chitosan-Loaded Bentonite Adsorbent and Its Performance in Removing Organic Matter from Coking Wastewater. Polymers (Basel) 2023; 15:polym15061588. [PMID: 36987368 PMCID: PMC10055804 DOI: 10.3390/polym15061588] [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: 02/26/2023] [Revised: 03/18/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
An amphiphilic chitosan-loaded bentonite adsorbent (C18CTS-BT) was prepared for the efficient removal of organic matter from coking wastewater. The structure and surface morphology of adsorbents were characterized by FT-IR, XRD, and SEM. The removal of those organics by C18CTS-BT was investigated by comparing the adsorption performances of C18CTS-BT with bentonite (BT) and chitosan-loaded bentonite (CTS-BT). The results showed that compared with BT and CTS-BT, C18CTS-BT showed the performance advantages of having a low dosage, wide pH range, and short adsorption equilibrium time. The optimized treatment process was as follows: the adsorbent dosage was 1.5 g·L-1, the adsorption time was 60 min, and the pH of the system was 7.0. The chemical oxygen demand (COD) of the coking wastewater treated with BT, CTS-BT, and C18CTS-BT decreased from 342 mg·L-1 in the raw water to 264 mg·L-1, 218 mg·L-1, and 146 mg·L-1, corresponding to COD removal rates of 22.81%, 36.26%, and 57.31%, respectively. The results of GC-MS analysis also confirmed that C18CTS-BT could remove most of the organic compounds in coking wastewater, especially long-chain alkanes and their derivatives. The hydrophobic modification of the adsorbent material can effectively improve the removal performance of organic compounds from coking wastewater.
Collapse
Affiliation(s)
- Zhou Zhu
- School of Ecology and Environment, Yuzhang Normal University, Nanchang 330103, China
- Key Laboratory of Green New Materials and Industrial Wastewater Treatment of Nanchang City, Yuzhang Normal University, Nanchang 330103, China
| | - Haiqun Kou
- School of Ecology and Environment, Yuzhang Normal University, Nanchang 330103, China
- Key Laboratory of Green New Materials and Industrial Wastewater Treatment of Nanchang City, Yuzhang Normal University, Nanchang 330103, China
| | - Yuchang Zhou
- School of Ecology and Environment, Yuzhang Normal University, Nanchang 330103, China
| | - Xindian Lan
- School of Ecology and Environment, Yuzhang Normal University, Nanchang 330103, China
| | - Meiying Yu
- School of Ecology and Environment, Yuzhang Normal University, Nanchang 330103, China
| | - Haonan Chen
- School of Ecology and Environment, Yuzhang Normal University, Nanchang 330103, China
| |
Collapse
|
11
|
Dhar AK, Himu HA, Bhattacharjee M, Mostufa MG, Parvin F. Insights on applications of bentonite clays for the removal of dyes and heavy metals from wastewater: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:5440-5474. [PMID: 36418828 DOI: 10.1007/s11356-022-24277-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: 08/29/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
In recent decades, increased industrial, agricultural, and domestic activities have resulted in the release of various pollutants into the aquatic systems, which require a reliable and environmentally friendly method to remove them. Adsorption is one of the most cost-effective and sustainable wastewater treatment techniques. A plethora of low-cost bio-based adsorbents have been developed worldwide so far to supplant activated carbon and its high processing costs. Bentonite clays (BCs), whether in natural or modified form, have gained enormous potential in wastewater treatment and have been used successfully as a novel and cost-effective bio-sorbent for removing organic and inorganic pollutants from the liquid suspension. It has become a sustainable solution for wastewater treatment due to its variety of surface and structural properties, superior chemical stability, high capacity for cation exchange, elevated surface area due to its layered structure, non-toxicity, abundance, low cost, and high adsorption capacity compared to other clays. This review encompasses comprehensive literature about various modification techniques and adsorption mechanisms of BCs concerning dyes and heavy metal removal from wastewater. A critical overview of different parameters for optimizing adsorption capacity and regeneration via the desorption technique has also been presented here. Finally, a conclusion has been drawn with some future research recommendations based on technological challenges encountered in industrializing these materials.
Collapse
Affiliation(s)
- Avik Kumar Dhar
- Department of Textiles, Merchandising, and Interiors, University of Georgia, 321 Dawson Hall, 305 Sanford Drive, Athens, GA-30602, USA.
| | - Humayra Akhter Himu
- Department of Environmental Science & Engineering, Bangladesh University of Textiles, Tejgaon, Dhaka-1208, Bangladesh
| | - Maitry Bhattacharjee
- Department of Chemical, Materials, and Biomedical Engineering, University of Georgia, Athens, GA-30602, USA
| | - Md Golam Mostufa
- Department of Textile Engineering, Shyamoli Textile Engineering College, Dhaka, 1207, Bangladesh
| | - Fahmida Parvin
- Department of Environmental Sciences, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
| |
Collapse
|
12
|
Bentonite catalyzed solvent-free synthesis of N′-(2-oxoindolin-3-ylidene) benzohydrazide derivatives under microwave irradiation. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|