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Dhir R, Shah B, Singh N. Synthesis and characterization of a novel copper carboxylate complex and a copper complex-coated polyether sulfone membrane for efficient degradation of methylene blue dye under UV irradiation: the single crystal X-ray structure of the copper carboxylate complex. Dalton Trans 2024; 53:9441-9451. [PMID: 38766878 DOI: 10.1039/d4dt00871e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Synthesis of a novel binuclear Cu(II) carboxylate complex under ambient laboratory conditions is presented. The complex exhibits a paddle wheel structure in which the axial positions are occupied by two copper atoms instead of two water molecules. The synthesized complex was characterized by single-crystal X-ray crystallography, FT-IR, X-ray diffraction, and UV-visible spectroscopy techniques. The thermal stability of the metal complex was studied by the thermogravimetric analysis study. The synthesized metal complex was employed for the synthesis of metal complex-coated polyether sulfone (PES) membranes which were characterized before and after filtration using the FESEM technique. The photocatalytic efficiency of the metal complex was studied for the degradation of methylene blue dye under UV irradiation in the presence of H2O2 and was compared with the photodegradation efficiency of the metal complex-coated polyether sulfone (PES) membrane.
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Affiliation(s)
- Rupy Dhir
- Department of Chemistry, GSSDGS Khalsa College, Patiala, Punjab, India 147001
| | - Bulle Shah
- Department of Chemistry, IIT Ropar, Punjab, India 140001.
| | - Narinder Singh
- Department of Chemistry, IIT Ropar, Punjab, India 140001.
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2
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Soylak M, Salamat Q, Sajjad S. The usability of green deep eutectic solvents in hollow fiber Liquid-Phase microextraction for the simultaneous extraction of analytes of different Natures: A comprehensive study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 319:124552. [PMID: 38820813 DOI: 10.1016/j.saa.2024.124552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/14/2024] [Accepted: 05/27/2024] [Indexed: 06/02/2024]
Abstract
In the current study, a wide range of deep eutectic solvents (DESs) with different properties (hydrophilic, hydrophobic, ionic, and nonionic) were prepared in the initial phase. Subsequently, an assessment was conducted to evaluate some characteristics of the produced DESs, including their stability at room temperature and their capacity to extract three distinct types of analytes (anionic, cationic, and non-ionic) simultaneously through hollow fiber-liquid phase microextraction (HF-LPME) technique. To carry out the extraction procedure, the prepared DESs were inserted into the pores (as supported liquid membrane (SLM)) and lumen of hollow fiber membrane (HF) to apply two-phase and three-phase HF-LPME techniques. After a thorough evaluation, the three-phase HF-LPME technique (HF(3)-LPME) was chosen by using a mixture of menthol/TBAB-based hydrophobic DES (DES-35) as SLM and the mixture of malic acid/citric acid/water-based hydrophilic DES (DES-2) as an extraction solvent in the lumen of HF. All factors affecting the extraction recovery (including pH, extraction time, extraction temperature, stirring speed, and salt effect) were optimized utilizing the one-variable-at-a-time (OVAT) methodology. After applying the extraction procedure, all extracted samples were analyzed using the UV-Vis spectrometer and results were recorded at different wavelengths including 655 nm for Methylene blue, 550 nm for Amaranth, and 375 nm for Quercetin. The calibration graphs showed linearity in the range of 20.0-1500 µg/L, with a limit of detection of 6.2-15.1 µg/L and correlation coefficients higher than 0.9913 for the studied analytes. Moreover, the intra-day RSD, inter-day RSD, preconcentration factor (PF), enrichment factors (EF), and extraction recoveries (ER%) were obtained in the range of 3.1-4.8, 3.8-6.7, 125, 102.9-111.4, and 82.3-89.1 %, respectively. The use of the selected DES in the HF-LPME methodology resulted in an ecologically friendly strategy, as evidenced by the use of green metrics from the SPMS tool. The proposed strategy is also considered environmentally friendly due to its use of minimal solvents, waste reduction, and low energy consumption. The proposed technique effectively and simultaneously extractedmethylene blue, amaranth, and quercetin analytes in different real samples.
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Affiliation(s)
- Mustafa Soylak
- Erciyes University, Faculty of Sciences, Department of Chemistry, 38039 Kayseri, Turkiye; Technology Research and Application Center (ERU-TAUM), Erciyes University, 38039 Kayseri, Turkiye; Turkish Academy of Sciences (TUBA), Çankaya, Ankara, Turkiye.
| | - Qamar Salamat
- Erciyes University, Faculty of Sciences, Department of Chemistry, 38039 Kayseri, Turkiye.
| | - Sabrina Sajjad
- Erciyes University, Faculty of Sciences, Department of Chemistry, 38039 Kayseri, Turkiye.
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3
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Kusuma HS, Christa Jaya DE, Illiyanasafa N, Ikawati KL, Kurniasari E, Darmokoesoemo H, Amenaghawon AN. A critical review and bibliometric analysis of methylene blue adsorption using leaves. CHEMOSPHERE 2024; 356:141867. [PMID: 38583535 DOI: 10.1016/j.chemosphere.2024.141867] [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: 09/24/2023] [Revised: 03/22/2024] [Accepted: 03/29/2024] [Indexed: 04/09/2024]
Abstract
The rapid development of the industrial world causes wastewater containing dyes to continue to increase. Even in recent years, the food, textile, cosmetic, plastic, and printing industries have developed the use of dyes. Methylene blue (MB) is one of the cationic dyes widely used in dyeing silk, wood, and cotton because of its absorbency and good fastness to materials. The adsorption process is the best technique and preferred in removing dyes from wastewater due to excellent selectivity, high efficiency from high-quality treated effluent, flexibility in design, and simplicity. Therefore, there is a growing interest to identify low-cost alternative adsorbents that have reasonable adsorption efficiency, especially natural materials such as leaves. In this study, research on MB adsorption using leaves was analyzed using bibliometric analysis. Information of bibliometric is extracted from the Scopus database with the keyword "Methylene Blue", "Adsorption or Desorption", and "Leaves or leaf". The results showed that India, Desalination and Water Treatment, and SASTRA Deemed University were the country, journal, and institution that contributed the most publications on this topic. Therefore, it is expected that with the use of bibliometrics, the use of leaf-based MB adsorption processes in their potential for MB dye removal can be investigated especially for large-scale development.
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Affiliation(s)
- Heri Septya Kusuma
- Department of Chemical Engineering, Faculty of Industrial Technology, Universitas Pembangunan Nasional "Veteran" Yogyakarta, Indonesia.
| | - Debora Engelien Christa Jaya
- Department of Chemical Engineering, Faculty of Industrial Technology, Universitas Pembangunan Nasional "Veteran" Yogyakarta, Indonesia
| | - Nafisa Illiyanasafa
- Department of Chemical Engineering, Faculty of Industrial Technology, Universitas Pembangunan Nasional "Veteran" Yogyakarta, Indonesia
| | - Kania Ludia Ikawati
- Department of Chemical Engineering, Faculty of Industrial Technology, Universitas Pembangunan Nasional "Veteran" Yogyakarta, Indonesia
| | - Endah Kurniasari
- Department of Chemical Engineering, Faculty of Industrial Technology, Universitas Pembangunan Nasional "Veteran" Yogyakarta, Indonesia
| | - Handoko Darmokoesoemo
- Department of Chemistry, Faculty of Science and Technology, Airlangga University, Mulyorejo, Surabaya, 60115, Indonesia.
| | - Andrew Nosakhare Amenaghawon
- Bioresources Valorization Laboratory, Department of Chemical Engineering, Faculty of Engineering, University of Benin, Benin City, Edo State, Nigeria
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Ali SS, Hassan GK, Ismail SH, Ebnalwaled AA, Mohamed GG, Hafez M. Exploration of PVC@SiO 2 nanostructure for adsorption of methylene blue via using quartz crystal microbalance technology. Sci Rep 2023; 13:19621. [PMID: 37949908 PMCID: PMC10638405 DOI: 10.1038/s41598-023-46807-4] [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: 07/05/2023] [Accepted: 11/05/2023] [Indexed: 11/12/2023] Open
Abstract
Methylene blue (MB) dye is considered a well-known dye in many industries and the low concentration of MB is considered very polluted for all environment if it discharged without any treatment. For that reason, many researchers used advanced technologies for removing MB such as the electrochemical methods that considered very simple and give rapid response. Considering these aspects, a novel quartz crystal microbalance nanosensors based on different concentrations of PVC@SiO2 were designed for real-time adsorption of MB dye in the aqueous streams at different pHs and different temperatures. The characterization results of PVC@SiO2 showed that the PVC@SiO2 have synthesized in spherical shape. The performance of the designed QCM-Based PVC@SiO2 nanosensors were examined by the QCM technique. The sensitivity of designed nanosensors was evaluated at constant concentration of MB (10 mg/L) at different pHs (2, 7 and 11) and temperatures (20 °C, 25 °C, and 30 °C). From the experimental, the best concentration of PVC@SiO2 was 3% for adsorbed 9.99 mg of cationic methylene blue at pH 11 and temperature 20 °C in only 5.6 min.
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Affiliation(s)
- Safaa S Ali
- Department of Physics, Faculty of Science, Cairo University, Giza, 12613, Egypt
- Department of Basic Sciences, Pyramids Higher Institute for Engineering and Technology, Giza, 12613, Egypt
| | - Gamal K Hassan
- Water Pollution Research Department, National Research Centre, 33El-Bohouth St. (Former El-Tahrir St.), Dokki, P.O. 12622, Giza, Egypt
| | - Sameh H Ismail
- Faculty of Nanotechnology for Postgraduate Studies, Cairo University, Sheikh Zayed Campus, 6th October City, Giza, 12588, Egypt
| | - A A Ebnalwaled
- Electronics & Nano Devices (END) Lab, Physics Department, Faculty of Science, South Valley University, Qena, 83523, Egypt
| | - Gehad G Mohamed
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt.
- Nanoscience Department, Basic and Applied Sciences Institute, Egypt-Japan University of Science and Technology, New Borg El Arab, Alexandria, 21934, Egypt.
| | - M Hafez
- Department of Physics, Faculty of Science, Cairo University, Giza, 12613, Egypt
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Mezyen M, El Fidha G, Bitri N, Harrathi F, Ly I, Llobet E. Visible light activated SnO 2:Dy thin films for the photocatalytic degradation of methylene blue. RSC Adv 2023; 13:31151-31166. [PMID: 37881756 PMCID: PMC10594155 DOI: 10.1039/d3ra05424a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 10/19/2023] [Indexed: 10/27/2023] Open
Abstract
This paper explores the impact of dysprosium (Dy) doping on structural, optical, and photocatalytic properties of tin oxide (SnO2) thin films fabricated via spray pyrolysis. Dysprosium doping levels ranged from 0 to 7 at%, and films were grown on glass substrates at 350 °C. X-ray diffraction (XRD) analysis revealed an increase in crystallite size with Dy doping, signifying improved crystalline quality. Simultaneously, dislocation density and strain decreased, indicating enhanced film quality. Texture coefficient (Tchkl) results showed a predominant crystal orientation along the (110) plane due to Dy doping. Optical band gap energy (Eg) decreased with Dy doping up to 5%. Urbach energy increased with Dy doping, suggesting atomic structural flaws and defects. Scanning electron microscopy (SEM) analysis revealed the presence of numerous micro-aggregates on the film's surface. Notably, the density of these micro-aggregates increased proportionally with higher Dy doping levels, particularly emphasizing the pronounced effect observed in SnO2:Dy 5% thin films. These findings underscore the potential of Dy-doped SnO2 thin films for advanced photocatalytic applications, with SnO2:Dy 5% exhibiting favorable properties and demonstrating a 90.99% degradation efficiency in three hours under solar irradiation.
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Affiliation(s)
- M Mezyen
- Université de Tunis El Manar, Ecole Nationale d'Ingénieurs de Tunis, Laboratoire de Photovoltaïque et Matériaux Semi-conducteurs 1002 Tunis Tunisia
| | - G El Fidha
- Université de Tunis El Manar, Ecole Nationale d'Ingénieurs de Tunis, Laboratoire de Photovoltaïque et Matériaux Semi-conducteurs 1002 Tunis Tunisia
- Ecole Nationale Supérieure d'ingénieurs de Tunis (ENSIT) Avenue Taha Hussein Montfleury Tunis 1008 Tunisia
| | - N Bitri
- Université de Tunis El Manar, Ecole Nationale d'Ingénieurs de Tunis, Laboratoire de Photovoltaïque et Matériaux Semi-conducteurs 1002 Tunis Tunisia
| | - F Harrathi
- Université de Tunis El Manar, Ecole Nationale d'Ingénieurs de Tunis, Laboratoire de Photovoltaïque et Matériaux Semi-conducteurs 1002 Tunis Tunisia
- Ecole Nationale Supérieure d'ingénieurs de Tunis (ENSIT) Avenue Taha Hussein Montfleury Tunis 1008 Tunisia
| | - I Ly
- Centre de Recherche Paul Pascal (CRPP) - UMR 5031 115 Avenue Albert Schweitzer 33600 Pessac France
| | - E Llobet
- Universitat Rovira i Virgili, MINOS, ETSE Avda. Països Catalans Tarragona 2643007 Spain
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Jawad AH, Abdulhameed AS, Khadiran T, ALOthman ZA, Wilson LD, Algburi S. Response surface methodology for optimizing methylene blue dye removal by mesoporous activated carbon derived from renewable woody Bambusoideae waste. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 26:727-739. [PMID: 37817463 DOI: 10.1080/15226514.2023.2262040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
In this study, the focus was on utilizing tropical plant biomass waste, specifically bamboo (BB), as a sustainable precursor for the production of activated carbon (BBAC) via pyrolysis-induced K2CO3 activation. The potential application of BBAC as an effective adsorbent for the removal of methylene blue (MB) dye from aqueous solutions was investigated. Response surface methodology (RSM) was employed to evaluate key adsorption characteristics, which included BBAC dosage (A: 0.02-0.08 g/L), pH (B: 4-10), and time (C: 2-8 min). The adsorption isotherm analysis revealed that the adsorption of MB followed the Freundlich model. Moreover, the kinetic data were well-described by the pseudo-second-order model, suggesting the role of a chemisorption process. The BBAC demonstrated a notable MB adsorption capacity of 195.8 mg/g, highlighting its effectiveness as an adsorbent. Multiple mechanisms were identified as controlling factors in MB adsorption by BBAC, including electrostatic forces, π-π stacking, and H-bonding interactions. The findings of this study indicate that BBAC derived from bamboo has the potential to be a promising adsorbent for the treatment of wastewater containing organic dyes. The employment of sustainable precursors like bamboo for activated carbon production contributes to environmentally friendly waste management practices and offers a solution for the remediation of dye-contaminated wastewater.
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Affiliation(s)
- Ali H Jawad
- Faculty of Applied Sciences, Advanced Biomaterials and Carbon Development Research Group, Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia
- Environmental and Atmospheric Sciences Research Group, Scientific Research Center, Al-Ayen University, Nasiriyah, Iraq
| | - Ahmed Saud Abdulhameed
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Anbar, Ramadi, Iraq
| | - Tumirah Khadiran
- Forest Products Division, Forest Research Institute Malaysia (FRIM), Kepong, Selangor, Malaysia
| | - Zeid A ALOthman
- Chemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Lee D Wilson
- Department of Chemistry, University of Saskatchewan, Saskatoon, SK, Canada
| | - Sameer Algburi
- College of Engineering Technology, Al-Kitab University, Kirkuk, Iraq
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Jaramillo-Fierro X, Gaona S, Ramón J, Valarezo E. Porous Geopolymer/ZnTiO 3/TiO 2 Composite for Adsorption and Photocatalytic Degradation of Methylene Blue Dye. Polymers (Basel) 2023; 15:2697. [PMID: 37376343 DOI: 10.3390/polym15122697] [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: 05/15/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
In this study, GP (geopolymer) and GTA (geopolymer/ZnTiO3/TiO2) geopolymeric materials were prepared from metakaolin (MK) and characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopy (SEM), energy dispersive X-rays (EDX), specific surface area (SSA), and point of zero charge (PZC). The adsorption capacity and photocatalytic activity of the compounds prepared in the form of pellets was determined by degradation of the methylene blue (MB) dye in batch reactors, at pH = 7.0 ± 0.2 and room temperature (20 °C). The results indicate that both compounds are highly efficient at adsorbing MB, with an average efficiency value of 98.5%. The Langmuir isotherm model and the pseudo second order kinetic model provided the best fits to the experimental data for both compounds. In the MB photodegradation experiments under UVB irradiation, GTA reached an efficiency of 93%, being higher than that achieved by GP (4%). Therefore, the incorporation of ZnTiO3/TiO2 in the geopolymeric matrix allowed GTA to achieve higher overall efficiency, by combining adsorption and photocatalysis, compared to the GP compound. The results indicate that the synthesized compounds could be used for up to five consecutive cycles for the removal of MB from wastewater through adsorption and/or photocatalysis processes.
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Affiliation(s)
- Ximena Jaramillo-Fierro
- Departamento de Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, San Cayetano Alto, Loja 1101608, Ecuador
| | - Sneyder Gaona
- Ingeniería Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, San Cayetano Alto, Loja 1101608, Ecuador
| | - John Ramón
- Ingeniería Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, San Cayetano Alto, Loja 1101608, Ecuador
| | - Eduardo Valarezo
- Departamento de Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, San Cayetano Alto, Loja 1101608, Ecuador
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Synthesis of activated carbon composited with Egyptian black sand for enhanced adsorption performance toward methylene blue dye. Sci Rep 2023; 13:4209. [PMID: 36918583 PMCID: PMC10015066 DOI: 10.1038/s41598-023-28556-6] [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: 12/14/2022] [Accepted: 01/20/2023] [Indexed: 03/16/2023] Open
Abstract
The present study reports the feasibility of the synthesis of a novel porous composite adsorbent, prepared from olive stone activated carbon (OS400) and garnet (GA) mineral impregnations (referred to as OSMG). This composite (OSMG) was applied for its ability to adsorb a macromolecular organic dye. The composite's structural characteristics were evaluated using various techniques such as Brunauer-Emmett-Teller (BET), Scanning Electron Microscopy equipped with Energy Dispersive X-ray spectroscopy (SEM-EDX), X-ray diffraction (XRD), and a Fourier transform infrared spectrometer (FT-IR). The specific surface area of the garnet (GA), (OS400), and (OSMG) were found to be 5.157 mg⋅g-1, 1489.598 mg⋅g-1, and 546.392 mg⋅g-1, respectively. The specific surface area of the new composite (OSMG) was promoted to enhance the adsorption of methylene blue (MB). Experiments were conducted under various conditions, including contact time, initial dye concentration, adsorbent dosage, pH, and temperatures. Data from these experiments were analyzed using several adsorption models including Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich (D-R). The results indicated that, the adsorption fit best with the Freundlich model and that the adsorption process followed a pseudo-second-order kinetic mechanism. Additionally, the thermodynamic analysis indicated the adsorption of MB onto garnet(GA) adsorbents is endothermic, while the sorption onto (OS400) and (OSMG) is an exothermic and non-spontaneous process. The OSMG composite can be used for at least five cycles without significant loss of adsorptive performance, and can easily be separated from the water after treatment.
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Li Y, Yin H, Cai Y, Luo H, Yan C, Dang Z. Regulating the exposed crystal facets of α-Fe 2O 3 to promote Fe 2O 3-modified biochar performance in heavy metals adsorption. CHEMOSPHERE 2023; 311:136976. [PMID: 36288770 DOI: 10.1016/j.chemosphere.2022.136976] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/12/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
α-Fe2O3 modified biochar (Fe2O3/BC) was prepared to remove Cu(II), Pb(II) and As(V). By adjusting the calcination temperature, the morphology and exposed crystal facets of α-Fe2O3 on the biochar were changed which further affected the adsorption performance. The kinetics and isotherms were investigated systematically to reveal adsorption effect of the adsorbent on Cu(II), Pb(II) and As(V). The results indicated that chemisorption process was the dominant adsorption mechanism. Fe2O3/BC-350 exhibited superior adsorption capacity for Cu(II) (258.22 mg/g) and Pb(II) (390.60 mg/g), and Fe2O3/BC-250 showed relatively good adsorption capacity for As(V) (5.78 mg/g). By adsorption mechanism analysis, electrostatic adsorption, ion exchange, precipitation and complexation were coexisted in the process of removing metal ions by Fe2O3/BC. The repeatability test and the effect of ion strength exhibited the strong stability of Fe2O3/BC. Meanwhile, density functional theory (DFT) calculations manifested that the (202) facet of α-Fe2O3 on Fe2O3/BC-350 possessed the lowest adsorption energies of Cu(II) and Pb(II). While for As(V), it was the (104) facet of α-Fe2O3 on Fe2O3/BC-250 that exhibited the lowest adsorption energy. DFT results revealed that different Fe2O3/BC had different adsorption affinities to various heavy metals. In general, this work not only prepared a promising adsorbent via a simple procedure, but also served as a reference for researchers in designing absorbents with specific active facet for efficient heavy metals remediation.
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Affiliation(s)
- Yingchao Li
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Hua Yin
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, Guangzhou 510006, China.
| | - Yuhao Cai
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Haoyu Luo
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Caiya Yan
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Zhi Dang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, Guangzhou 510006, China
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Amalina F, Razak ASA, Krishnan S, Zularisam A, Nasrullah M. Dyes removal from textile wastewater by agricultural waste as an absorbent – A review. CLEANER WASTE SYSTEMS 2022; 3:100051. [DOI: 10.1016/j.clwas.2022.100051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Mesoporous Activated Carbon from Bamboo Waste via Microwave-Assisted K2CO3 Activation: Adsorption Optimization and Mechanism for Methylene Blue Dye. SEPARATIONS 2022. [DOI: 10.3390/separations9120390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Bamboo waste (BW) was activated with a K2CO3 precursor in a microwave process for the adsorption of MB dye from an aqueous solution. The prepared bamboo-waste-activated carbon (BWAC) was analyzed by instrumental techniques such as FTIR, SEM, and BET analysis. The surface of the BWAC was mesoporous with a surface area of 107.148 m2/g. The MB dye removal was optimized with the three variables of adsorbent dose, pH, and contact time using the Box–Behnken design (BBD) model. Up to 87% of MB was removed in the optimized conditions of adsorbent dose of 0.08 g/100 mL, pH of 7.62, time of 8 min, and concentration of 50 mg/L. Here, the most effective parameter for MB removal was found to be adsorbent dose with an F-value of 121.70, while time and pH showed a smaller effect. The maximum adsorption capacity of BWAC in the optimized conditions was found to be 85.6 mg/g. The adsorption of MB on BWAC’s surface was through chemisorption and a spontaneous process. The adsorption mechanism study showed that three types of interactions are responsible for the removal of MB dye from aqueous solutions by BWAC, i.e., electrostatic interactions, H-bonding, and pi–pi interactions. Hence, BWAC can be considered a highly efficient adsorbent for MB removal from wastewater.
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Solanki S, Sinha S, Bisaria K, Singh R, Saxena R. Accurate data prediction by fuzzy inference model for adsorption of hazardous azo dyes by novel algal doped magnetic chitosan bionanocomposite. ENVIRONMENTAL RESEARCH 2022; 214:113844. [PMID: 35843281 DOI: 10.1016/j.envres.2022.113844] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/27/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
A bionanocomposite comprising of magnetic chitosan doped with algae isolated from native habitat was fabricated and utilized as an efficient adsorbent for the removal of hazardous azo dyes, namely, Direct Red 31 (DR31) and Direct Red 28 (DR28). The algal doped magnetic chitosan (Alg@mCS) was comprehensively characterized by Scanning Electron Microscopy (SEM), Energy Dispersive X-Ray Analysis (EDAX), Fourier Transform Infrared Spectroscopy (FTIR), X-ray diffraction analysis (XRD), and Brunauer-Emmett-Teller (BET). On the sorption of dyes, the influence of various process variables such as pH, adsorbent dosage, contact time, temperature, and initial dyes concentration were addressed. The adsorbent demonstrated maximal removal of DR31 and DR28 at pH 5 and 3, respectively. The maximum adsorption capacity of DR31 and DR28 was observed at Alg@mCS dose of 0.6 g L-1 and 7 g L-1 in 10 and 20 min, respectively. The Redlich Peterson isotherm model was shown to be appropriate for dye adsorption, indicating monolayer coverage of the dyes on the adsorbent surface (R2 > 0.99). The adsorption process followed pseudo-second-order kinetics (R2 > 0.99). Based on 320 experimental datasets from batch studies and interpolated data, adaptive neuro-fuzzy inference system (ANFIS) models were utilized to estimate dye elimination (percent). A number of parameters were calculated to validate the model's applicability. The Alg@mCS was proven to be a useful adsorbent for eliminating toxic and harmful azo dyes from aqueous solutions.
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Affiliation(s)
- Swati Solanki
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, 201313, India
| | - Surbhi Sinha
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, 201313, India
| | - Kavya Bisaria
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, 201313, India
| | - Rachana Singh
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, 201313, India.
| | - Reena Saxena
- Department of Chemistry, Kirori Mal College, University of Delhi, Delhi, India
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Yousef TA, Sahu UK, Jawad AH, Abd Malek NN, Al Duaij OK, ALOthman ZA. Fruit peel-based mesoporous activated carbon via microwave assisted K 2CO 3 activation: Box Behnken design and desirability function for methylene blue dye adsorption. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 25:1142-1154. [PMID: 36305491 DOI: 10.1080/15226514.2022.2137102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A low-cost fruit waste namely watermelon peel (WMP) was utilized as a promising precursor for the preparation of mesoporous activated carbon (WMP-AC) via microwave assisted-K2CO3 activation. The WMP-AC was applied as an adsorbent for methylene blue dye (MB) removal. Several types of characterizations, such as specific surface area (BET), Scanning Electron Microscopy with Energy Dispersive X-ray Spectroscopy (SEM-EDX), Elemental Analysis (CHNS/O), and Fourier Transform Infrared Spectroscopy (FTIR) were used to identify the physicochemical properties of WMP-AC. Furthermore, Box-Behnken design (BBD) was applied to optimize the influence of the adsorption operational variables (contact time, adsorbent dose, working temperature, and solution pH) on MB dye adsorption. Thus, based on significant interactions, the optimum BBD output shows the best removal of 50 mg·L-1 MB (92%) was recorded at an adsorbent dose of 0.056 g, contact time of 4.4 min, working temperature of 39 °C, and solution pH 8.4. The Langmuir uptake capacity of WMP-AC was found to be 312.8 mg·g-1, with the best fitness to the pseudo-second-order kinetics model and an endothermic adsorption process. The adsorption mechanisms of MB by WMP-AC can be assigned to the hydrogen bonding, electrostatic attraction, and π-π stacking. The findings of this study indicate that WMP is a promising precursor for producing porous activated carbon for MB dye removal.
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Affiliation(s)
- Tarek A Yousef
- Department of Chemistry, Science College, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia
| | - Uttam Kumar Sahu
- Department of Basic Science & Humanities, Gandhi Institute of Engineering & Technology University, Gunupur, India
| | - Ali H Jawad
- Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam, Malaysia
| | | | - O K Al Duaij
- Department of Chemistry, Science College, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia
| | - Zeid A ALOthman
- Chemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
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3D Porous Structure-Inspired Lignocellulosic Biosorbent of Medulla tetrapanacis for Efficient Adsorption of Cationic Dyes. Molecules 2022; 27:molecules27196228. [PMID: 36234765 PMCID: PMC9571076 DOI: 10.3390/molecules27196228] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 09/17/2022] [Accepted: 09/19/2022] [Indexed: 11/16/2022] Open
Abstract
The focus of this work was on developing a green, low-cost, and efficient biosorbent based on the biological structure and properties of MT and applying it to the remediation of cationic dyes in dye wastewater. The adsorption performance and mechanism of MT on methylene blue (MB) and crystal violet (CV) were investigated by batch adsorption experiments. The results demonstrated that the highest adsorption values of MT for MB (411 mg/g) and CV (553 mg/g) were greatly higher than the reported values of other biosorbents. In addition, the adsorption behaviors of methylene blue (MB) and crystal violet (CV) by MT were spontaneous exothermic reactions and closely followed the pseudo-second-order (PSO) kinetics and Langmuir isotherm. Further, the depleted MT was regenerated using pyrolysis mode to convert depleted MT into MT-biochar (MBC). The maximum adsorption of Cu2+ and Pb2+ by MBC was up to 320 mg/g and 840 mg/g, respectively. In conclusion, this work presented a new option for the adsorption of cationic dyes in wastewater and a new perspective for the treatment of depleted biosorbents.
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Gao S, Liu Y. Potassium-assisted synthesis of SUZ-4 zeolite as an efficient adsorbent for Pb2+ removal from wastewater. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Hamad HN, Idrus S. Recent Developments in the Application of Bio-Waste-Derived Adsorbents for the Removal of Methylene Blue from Wastewater: A Review. Polymers (Basel) 2022; 14:polym14040783. [PMID: 35215695 PMCID: PMC8876036 DOI: 10.3390/polym14040783] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/05/2022] [Accepted: 02/10/2022] [Indexed: 02/04/2023] Open
Abstract
Over the last few years, various industries have released wastewater containing high concentrations of dyes straight into the ecological system, which has become a major environmental problem (i.e., soil, groundwater, surface water pollution, etc.). The rapid growth of textile industries has created an alarming situation in which further deterioration to the environment has been caused due to substances being left in treated wastewater, including dyes. The application of activated carbon has recently been demonstrated to be a highly efficient technology in terms of removing methylene blue (MB) from wastewater. Agricultural waste, as well as animal-based and wood products, are excellent sources of bio-waste for MB remediation since they are extremely efficient, have high sorption capacities, and are renewable sources. Despite the fact that commercial activated carbon is a favored adsorbent for dye elimination, its extensive application is restricted because of its comparatively high cost, which has prompted researchers to investigate alternative sources of adsorbents that are non-conventional and more economical. The goal of this review article was to critically evaluate the accessible information on the characteristics of bio-waste-derived adsorbents for MB’s removal, as well as related parameters influencing the performance of this process. The review also highlighted the processing methods developed in previous studies. Regeneration processes, economic challenges, and the valorization of post-sorption materials were also discussed. This review is beneficial in terms of understanding recent advances in the status of biowaste-derived adsorbents, highlighting the accelerating need for the development of low-cost adsorbents and functioning as a precursor for large-scale system optimization.
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Xi J, Zhang R, Ye L, Du X, Lu X. Multi-step preparation of Fe and Si modified biochar derived from waterworks sludge towards methylene blue adsorption. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 304:114297. [PMID: 34933264 DOI: 10.1016/j.jenvman.2021.114297] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 11/28/2021] [Accepted: 12/11/2021] [Indexed: 06/14/2023]
Abstract
A magnetic nitrogen-doped sludge-based biochar (NAlSB-Fe-Si) was prepared based on waterworks sludge for raw material and dicyandiamide for nitrogen source to adsorb methylene blue (MB) from water. And the magnetic particles loaded on the adsorbent were obtained through functionalizing iron and silicon ions which were extracted from the biochar by acid and alkali impregnation. Physicochemical properties of sludge-based biochar (SB) were analyzed by SEM, BET, FTIR, XRD, XPS and VSM. Compared with the original biochar, NAlSB-Fe-Si had richer pore structure and higher pore volume, and the SiO2 and Fe3O4 loading made the specific surface area increased by 200%. Possible adsorption mechanism was proposed by exploring the initial pH, MB concentration and reaction time. Results revealed that alkaline environment was more conducive to the rapid removal of cationic dyes such as MB. Pseudo-second-order kinetic model and intra-particle diffusion model could describe the adsorption behavior of MB on NAlSB-Fe-Si. The fitting results of Langmuir model showed that adsorption temperature is positively correlated with adsorption capacity, and the maximum adsorption capacity of MB on nitrogen-doped sludge-based biochar (NSB) and NAlSB-Fe-Si at 25 °C was 26.47 and 300.36 mg/g, respectively. Finally, the MB removal rate of NAlSB-Fe-Si could still reach 70% after four cycles, indicating that the composite was an efficient cationic dye adsorbent, and its preparation could be regarded as a way of resource utilization of waterworks sludge.
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Affiliation(s)
- Jiaran Xi
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Rui Zhang
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, 300384, China
| | - Lei Ye
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Xinyuan Du
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Xuebin Lu
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China; School of Science, Tibet University, Lhasa, 850000, China.
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Abstract
The unavailability of clean drinking water is one of the significant health issues in modern times. Industrial dyes are one of the dominant chemicals that make water unfit for drinking. Among these dyes, methylene blue (MB) is toxic, carcinogenic, and non-biodegradable and can cause a severe threat to human health and environmental safety. It is usually released in natural water sources, which becomes a health threat to human beings and living organisms. Hence, there is a need to develop an environmentally friendly, efficient technology for removing MB from wastewater. Photodegradation is an advanced oxidation process widely used for MB removal. It has the advantages of complete mineralization of dye into simple and nontoxic species with the potential to decrease the processing cost. This review provides a tutorial basis for the readers working in the dye degradation research area. We not only covered the basic principles of the process but also provided a wide range of previously published work on advanced photocatalytic systems (single-component and multi-component photocatalysts). Our study has focused on critical parameters that can affect the photodegradation rate of MB, such as photocatalyst type and loading, irradiation reaction time, pH of reaction media, initial concentration of dye, radical scavengers and oxidising agents. The photodegradation mechanism, reaction pathways, intermediate products, and final products of MB are also summarized. An overview of the future perspectives to utilize MB at an industrial scale is also provided. This paper identifies strategies for the development of effective MB photodegradation systems.
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Chang BP, Gupta A, Mekonnen TH. Flame synthesis of carbon nanoparticles from corn oil as a highly effective cationic dye adsorbent. CHEMOSPHERE 2021; 282:131062. [PMID: 34102492 DOI: 10.1016/j.chemosphere.2021.131062] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/23/2021] [Accepted: 05/29/2021] [Indexed: 05/27/2023]
Abstract
Carbon nanoparticles (CNP) were synthesized through flame deposition method from a sustainable corn oil precursor. The morphology, particle size, surface chemistry, thermal stability, and zeta potential of the CNP were characterized. The batch adsorption of a cationic dye, methylene blue (MB), by the CNP at various concentrations, pH, and temperatures was evaluated to investigate the CNP's efficacy in industrial wastewater treatment applications. Results revealed the excellent adsorption of MB onto the CNP. The experimental data were then fitted into isotherm models, kinetic models, and thermodynamic models, and the model parameters, constants, Gibb free energy, enthalpy, and entropy were calculated and discussed. Hydrogen bonding and strong electrostatic interaction were the main adsorption mechanism for MB adsorption by the CNP. The CNP exhibited a maximum adsorption capacity of 138.89 mg/g, indicating superior adsorption of MB dye without the need for any further purification and activation steps. The adsorption efficiency did not compromise as the solution temperature increased up to 60 °C, and it can further be enhanced under alkaline conditions. To simulate the practical and industrial use of the developed CNP in textile effluent treatment, successful experiments were conducted in continuous flow adsorption by allowing concentrated MB solution to flow through a designed fixed bed purification system with a CNP filter bed.
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Affiliation(s)
- Boon Peng Chang
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON, Canada
| | - Arvind Gupta
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON, Canada
| | - Tizazu H Mekonnen
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON, Canada; Institute of Polymer Research, University of Waterloo, Waterloo, ON, Canada; Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, Canada.
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Eltaweil AS, El-Monaem EMA, Mohy-Eldin MS, Omer AM. Fabrication of attapulgite/magnetic aminated chitosan composite as efficient and reusable adsorbent for Cr (VI) ions. Sci Rep 2021; 11:16598. [PMID: 34400760 PMCID: PMC8368087 DOI: 10.1038/s41598-021-96145-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 08/02/2021] [Indexed: 02/07/2023] Open
Abstract
An efficient composite was constructed based on aminated chitosan (NH2Cs), attapulgite (ATP) clay and magnetic Fe3O4 for adsorptive removal of Cr(VI) ions. The as-fabricated ATP@Fe3O4-NH2Cs composite was characterized by Fourier Transform Infrared Spectroscopy (FTIR), Thermal Gravimetric Analyzer (TGA), Scanning Electron Microscope (SEM), Zeta potential (ZP), Vibrating Sample Magnetometer (VSM), Brunauer-Emmett-Teller method (BET) and X-ray photoelectron spectroscope (XPS). A significant improve in the adsorption profile was established at pH 2 in the order of ATP@Fe3O4-NH2Cs(1:3) > ATP@Fe3O4-NH2Cs(1:1) > ATP@Fe3O4-NH2Cs(3:1) > Fe3O4-NH2Cs > ATP. The maximum removal (%) of Cr(VI) exceeded 94% within a short equilibrium time of 60 min. The adsorption process obeyed the pseudo 2nd order and followed the Langmuir isotherm model with a maximum monolayer adsorption capacity of 294.12 mg/g. In addition, thermodynamics studies elucidated that the adsorption process was spontaneous, randomness and endothermic process. Interestingly, the developed adsorbent retained respectable adsorption properties with acceptable removal efficiency exceeded 58% after ten sequential cycles of reuse. Besides, the results hypothesize that the adsorption process occurs via electrostatic interactions, reduction of Cr(VI) to Cr(III) and ion-exchanging. These findings substantiate that the ATP@Fe3O4-NH2Cs composite could be effectively applied as a reusable adsorbent for removing of Cr(VI) ions from aqueous solutions.
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Affiliation(s)
| | - Eman M Abd El-Monaem
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Mohamed S Mohy-Eldin
- Polymer Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, P. O. Box: 21934, Alexandria, Egypt
| | - Ahmed M Omer
- Polymer Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, P. O. Box: 21934, Alexandria, Egypt.
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21
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Artificial neural network modeling of the hexavalent uranium sorption onto chemically activated bentonite. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04541-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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22
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Seto C, Chang BP, Tzoganakis C, Mekonnen TH. Lignin derived nano-biocarbon and its deposition on polyurethane foam for wastewater dye adsorption. Int J Biol Macromol 2021; 185:629-643. [PMID: 34216664 DOI: 10.1016/j.ijbiomac.2021.06.185] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 06/24/2021] [Accepted: 06/27/2021] [Indexed: 10/21/2022]
Abstract
Historically, lignin has been produced as a waste by-product in industrial processes. In this study, lignosulfonate nanoparticles were fabricated and freeze-dried for use as a precursor material for carbonization. The use of the carbonized lignins for the adsorption of textile effluent as a value-added application is demonstrated. Characterization of the as received lignin (LN) and the developed nano-based freeze-dried lignin (NFLN) were performed prior to and after carbonization at 600, 750, 900 and 1050 °C. Using probe sonication, lignosulfonates were broken down into nanoparticles with lower weight-average molecular weight as verified by dynamic and static light scattering techniques. The difference between the LN and the NFLN was determined to be primarily morphological as the sonication and freeze-drying process imparted a platelet-like shape to the NFLN biocarbons and an increased surface area, while the remaining functionality was similar. The adsorption behaviour of methylene blue (MB), a synthetic cationic dye, was investigated using adsorption isotherm and kinetic models, with the NFLN exhibiting a maximum adsorption capacity of 109.77 mg/g. Overall, electrostatic attraction and hydrogen bonding contribute significantly to the MB adsorption. Further preliminary work was also performed demonstrating the coating of polyurethane foam for the adsorption of MB. These renewable biocarbons show promising properties for use as additive in adsorbent, coating, pigment or as a filler in polymer composite applications.
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Affiliation(s)
- Curtis Seto
- Department of Chemical Engineering, Institute of Polymer Research, University of Waterloo, Waterloo N2L 3G1, Ontario, Canada
| | - Boon Peng Chang
- Department of Chemical Engineering, Institute of Polymer Research, University of Waterloo, Waterloo N2L 3G1, Ontario, Canada
| | - Costas Tzoganakis
- Department of Chemical Engineering, Institute of Polymer Research, University of Waterloo, Waterloo N2L 3G1, Ontario, Canada
| | - Tizazu H Mekonnen
- Department of Chemical Engineering, Institute of Polymer Research, University of Waterloo, Waterloo N2L 3G1, Ontario, Canada.
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23
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Parameter optimization of tetracycline removal by vanadium oxide nano cuboids. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126460] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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24
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Kumar S, Kaushik R, Purohit L. Novel ZnO tetrapod-reduced graphene oxide nanocomposites for enhanced photocatalytic degradation of phenolic compounds and MB dye. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114814] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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25
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Lyu F, Niu S, Wang L, Liu R, Sun W, He D. Efficient removal of Pb(II) ions from aqueous solution by modified red mud. JOURNAL OF HAZARDOUS MATERIALS 2021; 406:124678. [PMID: 33296756 DOI: 10.1016/j.jhazmat.2020.124678] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/16/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
In the work, we employed a hydrothermal method for modification of red mud using colloidal silica and sodium hydroxide under mild conditions, and applied it into adsorbing Pb(II) ions in aqueous solutions. In the modification, zeolite structure was formed. The adsorption experiments found that the adsorption capacity of the modified red mud for Pb(II) ions was significantly improved, almost 10 times as much as that of the original red mud. Both the pseudo-first-order and pseudo-second-order kinetic equation can describe the adsorption process, indicating it a more complicated interaction. Langmuir and Dubinin-Radushkevich models well fit the adsorption isotherm, indicating that the modified red mud mainly removes lead ions from aqueous solution by monolayer physical adsorption. According to the fitting results, the saturated adsorption capacity of Pb (II) by the modified red mud is 551.11 mg/g, confirming its high efficiency adsorption performance. XRD, FTIR, XPS and SEM-EDS all detected the formation of PbCO3 and Pb3(CO3)2(OH)2. It was speculated that the adsorption mechanism should be attributed to the joint contribution of ion exchange and precipitation. The excellent performance of the modified red mud on Pb(II) ions adsorption makes it a promising candidate for the treatment of wastewater contaminated by heavy metal ions.
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Affiliation(s)
- Fei Lyu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha 410083, China
| | - Sulin Niu
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Li Wang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha 410083, China
| | - Runqing Liu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha 410083, China
| | - Wei Sun
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha 410083, China
| | - Dongdong He
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha 410083, China.
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26
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Liu S, Cui S, Guo H, Wang Y, Zheng Y. Adsorption of Lead Ion from Wastewater Using Non-Crystal Hydrated Calcium Silicate Gel. MATERIALS (BASEL, SWITZERLAND) 2021; 14:842. [PMID: 33578734 PMCID: PMC7916452 DOI: 10.3390/ma14040842] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/01/2021] [Accepted: 02/03/2021] [Indexed: 11/17/2022]
Abstract
In order to obtain low-cost and excellent adsorption materials, this paper used calcium acetate and water glass as raw materials to synthesis hydrated calcium silicate gel by precipitation method. The performance and structure of hydrated calcium silicate gel were systematically studied by X-ray photoelectron spectroscopy, fourier transform infrared spectroscopy, specific surface area analyzer and scanning electron microscope. Studies have shown that, non-crystal hydrated calcium silicate gel (CSH) were successfully prepared, and the removal rate of lead ion using CSH reached more than 90%. The adsorption process is consistent with the pseudo-second-order kinetic model and Langmuir adsorption isotherm model, and the limit adsorption capacity reaches 263.17 mg·g-1. The acid treatment experiment proved that the adsorption capacity of lead ion using CSH was satisfactory, and the adsorption rate remained at >60% after 5 cycles. The research may provide a low-cost, high-efficiency and high stability adsorbent.
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Affiliation(s)
| | - Suping Cui
- College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China; (S.L.); (H.G.); (Y.W.); (Y.Z.)
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Li B, Liu Y, Zhao X, Ning P, Liu X, Zhu T. O 3 oxidation excited by yellow phosphorus emulsion coupling with red mud absorption for denitration. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123971. [PMID: 33265012 DOI: 10.1016/j.jhazmat.2020.123971] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/23/2020] [Accepted: 09/11/2020] [Indexed: 06/12/2023]
Abstract
Directing to unwieldiness NOx emitted by the industry, the removal of NOx was implemented using yellow phosphorus (P4) emulsion and red mud slurry as composite absorbent. Where yellow phosphorus is considered to stimulate formation of the ecological ozone (O3) from O2, the oxidation of insoluble NO into water-soluble NOx species by O3, and the red mud as a pH buffer can be used to maintain the pH of the absorption liquid in a range that better absorbs NOx. NO is finally converted into NO2- and NO3-, whereas the yellow phosphorus is mainly PO43-. Single-factor influencing on the efficiency of denitration include the concentration of yellow phosphorus, reaction temperature, stirring intensity, gas flow rate, O2 content, and red mud solid-liquid ratio were investigated. Response surface methodology (RSM) was used to optimize the process parameters. It was indicated that the removal rate of NOx can reach 99.3% under the optimal conditions. Moreover, the possible denitration reaction mechanism was also discussed.
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Affiliation(s)
- Bin Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Yu Liu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Xingting Zhao
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Ping Ning
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China.
| | - Xiaolong Liu
- Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
| | - Tingyu Zhu
- Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
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Gu H, Lin W, Sun S, Wu C, Yang F, Ziwei Y, Chen N, Ren J, Zheng S. Calcium oxide modification of activated sludge as a low-cost adsorbent: Preparation and application in Cd(II) removal. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 209:111760. [PMID: 33360285 DOI: 10.1016/j.ecoenv.2020.111760] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 11/27/2020] [Accepted: 11/30/2020] [Indexed: 06/12/2023]
Abstract
In this study, a simple to produce, low-cost and environment-friendly sludge based adsorbent, prepared from municipal dewatered sludge and modified by calcium oxide (CaO), is described. The enhancement effect of CaO modification on the adsorption capacity and mechanical strength of sludge based adsorbents (CaO-SA), and the modification mechanism of CaO on activated sludge are discussed. Also, the Cd(II) adsorption conditions are optimized using surface optimization experiment. The results indicated that CaO had a good effect on improving the adsorption capacity and mechanical strength of the sludge-based adsorbent. The CaO-SA adsorbent showed best performance with respect to the mechanical strength and Cd(II) adsorption capacity when prepared under 5% CaO dosage and 60 °C drying temperature. CaO modification can increase the specific surface area and calcium ion content of the sludge-based adsorbent and remove the proton of the carboxylic acid in the sludge. The Box-Behnken experimental design results revealed that the importance of operating conditions for CaO-SA adsorption of Cd(II) can be arranged in the order of adsorption time > dosage> pH> temperature. The results also indicated that the interactions between adsorption time and CaO-SA dosage, adsorption time and pH, adsorption time and temperature are all important factors affecting the Cd(II) adsorption. The optimal conditions (adsorption time of 90 min, CaO-SA dosage of 1 g/L, pH of 5 and adsorption temperature of 40 °C) for CaO-SA to adsorb Cd(II) were obtained by surface optimization, at which the Cd(II) adsorption rate could reach a value of 99.74%.
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Affiliation(s)
- Haiqi Gu
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Weixiong Lin
- School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China.
| | - Shuiyu Sun
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China; Guangdong Polytechnic of Environmental Protection Engineering, Foshan 528216, China.
| | - Chun Wu
- Guangdong Yuanquan Testing Technology Co., Ltd., Foshan 528225, China
| | - Fan Yang
- Guangdong Polytechnic of Environmental Protection Engineering, Foshan 528216, China
| | - Ye Ziwei
- Guangdong Polytechnic of Environmental Protection Engineering, Foshan 528216, China
| | - Nanwei Chen
- Guangdong Polytechnic of Environmental Protection Engineering, Foshan 528216, China
| | - Jie Ren
- Guangdong Polytechnic of Environmental Protection Engineering, Foshan 528216, China
| | - Shilin Zheng
- Guangdong Polytechnic of Environmental Protection Engineering, Foshan 528216, China
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Barakat M, Kumar R, Lima EC, Seliem MK. Facile synthesis of muscovite–supported Fe3O4 nanoparticles as an adsorbent and heterogeneous catalyst for effective removal of methyl orange: Characterisation, modelling, and mechanism. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.01.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Adsorption of lead ions from aqueous solutions by porous cellulose nanofiber–sodium alginate hydrogel beads. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115122] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Lei Y, Li K, Liao J, Zhang Y, Zhang L, Zhu W. Design of 3D alumina-doped magnesium oxide aerogels with a high efficiency removal of uranium( vi) from wastewater. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00259g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
3D alumina-doped magnesium oxide (Al2O3/MgO) aerogels with remarkable adsorption properties for U(vi) were prepared via a simple lyophilization–calcination method.
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Affiliation(s)
- Yuqing Lei
- State Key Laboratory of Environment-friendly Energy Materials
- Sichuan Co-Innovation Center for New Energetic Materials
- National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety
- Nuclear Waste and Environmental Safety Key Laboratory of Defense
- School of National Defence Science & Technology
| | - Keding Li
- State Key Laboratory of Environment-friendly Energy Materials
- Sichuan Co-Innovation Center for New Energetic Materials
- National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety
- Nuclear Waste and Environmental Safety Key Laboratory of Defense
- School of National Defence Science & Technology
| | - Jun Liao
- State Key Laboratory of Environment-friendly Energy Materials
- Sichuan Co-Innovation Center for New Energetic Materials
- National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety
- Nuclear Waste and Environmental Safety Key Laboratory of Defense
- School of National Defence Science & Technology
| | - Yong Zhang
- State Key Laboratory of Environment-friendly Energy Materials
- Sichuan Co-Innovation Center for New Energetic Materials
- National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety
- Nuclear Waste and Environmental Safety Key Laboratory of Defense
- School of National Defence Science & Technology
| | - Lin Zhang
- Division of Target Science and Fabrication
- Research Center of Laser Fusion
- China Academy of Engineering Physics
- Mianyang 621900
- P. R. China
| | - Wenkun Zhu
- State Key Laboratory of Environment-friendly Energy Materials
- Sichuan Co-Innovation Center for New Energetic Materials
- National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety
- Nuclear Waste and Environmental Safety Key Laboratory of Defense
- School of National Defence Science & Technology
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Gao M, Wang W, Cao M, Yang H, Li Y. Constructing hydrangea-like hierarchical zinc-zirconium oxide microspheres for accelerating fluoride elimination. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114133] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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33
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Bardhan M, Novera TM, Tabassum M, Islam MA, Jawad AH, Islam MA. Adsorption of methylene blue onto betel nut husk-based activated carbon prepared by sodium hydroxide activation process. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 82:1932-1949. [PMID: 33201856 DOI: 10.2166/wst.2020.451] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this study, activated carbon (AC) was prepared from agro-waste betel nut husks (BNH) through the chemical activation method. Different characterization techniques described the physicochemical nature of betel nut husks activated carbon (BNH-AC) through Fourier transform infrared spectroscopy (FTIR), Brunauer-Emmett-Teller (BET), scanning electron microscopy (SEM), and pH point of zero charge. Later, the produced AC was used for methylene blue (MB) adsorption via numerous batch experimental parameters: initial concentrations of MB dye (25-250 mg/L), contact time (0.5-24 hours) and initial pH (2-12). Dye adsorption isotherms were also assessed at three temperatures where the maximum adsorption capacity (381.6 mg/g) was found at 30 °C. The adsorption equilibrium data were best suited to the non-linear form of the Freundlich isotherm model. Additionally, non-linear pseudo-second-order kinetic model was better fitted with the experimental value as well. Steady motion of solute particles from the boundary layer to the BNH-AC's surface was the possible reaction dynamics concerning MB adsorption. Thermodynamic study revealed that the adsorption process was spontaneous and exothermic in nature. Saline water emerged as an efficient eluent for the desorption of adsorbed dye on AC. Therefore, the BNH-AC is a very promising and cost-effective adsorbent for MB dye treatment and has high adsorption capacity.
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Affiliation(s)
- Mondira Bardhan
- Environmental Science Discipline, Khulna University, Khulna 9208, Bangladesh E-mail:
| | - Tamanna Mamun Novera
- Environmental Science Discipline, Khulna University, Khulna 9208, Bangladesh E-mail:
| | - Mumtahina Tabassum
- Environmental Science Discipline, Khulna University, Khulna 9208, Bangladesh E-mail:
| | - Md Azharul Islam
- Forestry and Wood Technology Discipline, Khulna University, Khulna 9208, Bangladesh
| | - Ali H Jawad
- School of Chemistry and Environment, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
| | - Md Atikul Islam
- Environmental Science Discipline, Khulna University, Khulna 9208, Bangladesh E-mail:
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Cardenas Bates II, Loranger É, Chabot B. Chitosan-PEO nanofiber mats for copper removal in aqueous solution using a new versatile electrospinning collector. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-03342-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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