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El Hajam M, Idrissi Kandri N, Özdemir S, Plavan G, Ben Hamadi N, Boufahja F, Zerouale A. Statistical Design and Optimization of Cr (VI) Adsorption onto Native and HNO 3/NaOH Activated Cedar Sawdust Using AAS and a Response Surface Methodology (RSM). Molecules 2023; 28:7271. [PMID: 37959691 PMCID: PMC10649725 DOI: 10.3390/molecules28217271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/08/2023] [Accepted: 10/17/2023] [Indexed: 11/15/2023] Open
Abstract
The removal of heavy metals from wastewater has become the subject of considerable interest at present. Thus, the use of novel adsorbents that are highly efficient is of critical importance for the removal of Cr (VI) ions from aqueous media. The adsorption of Cr (VI) ions from aqueous solutions by a new adsorbent, cedar wood sawdust, and the optimization of its adsorption parameters, were investigated in this study. Cedar wood sawdust was used in its native and HNO3/NaOH chemically modified forms as new low-cost sorbents to remove Cr (VI) ions from aqueous solutions in a batch system. The adsorption conditions were analyzed via response surface methodology. The RSM results showed that the optimal adsorption conditions yielding the best response were an adsorbent mass of 2 g for native Cedar and 1.125 g for its activated form, a metal concentration of 150 mg/L for native Cedar and 250 mg/L for activated, a temperature of 50 °C, a pH of 1, and a contact time of 67.5 min. At optimum adsorption conditions, the maximum adsorption capacities and the adsorption yields were 23.64 mg/g and 84% for native Cedar and 48.31 mg/g and 99% for activated Cedar, respectively.
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Affiliation(s)
- Maryam El Hajam
- School of Forest Resources and Advanced Structures and Composites Center, University of Maine, Orono, ME 04469, USA;
- Processes, Materials and Environment Laboratory (PMEL), Faculty of Sciences and Techniques, Sidi Mohammed Ben Abdellah University, Road Imouzzer, Fez BP 2202, Morocco;
| | - Noureddine Idrissi Kandri
- Signals Systems and Components Laboratory (SSCL), Faculty of Sciences and Techniques, Sidi Mohammed Ben Abdellah University, Road Imouzzer, Fez BP 2202, Morocco;
| | - Sadin Özdemir
- Food Processing Programme, Technical Science Vocational School, Mersin University, Mersin 33343, Turkey;
| | - Gabriel Plavan
- Department of Biology, Faculty of Biology, Alexandru Ioan Cuza University, Bvd. Carol I. No. 20A, 700505 Iasi, Romania;
| | - Naoufel Ben Hamadi
- Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia;
| | - Fehmi Boufahja
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Abdelaziz Zerouale
- Processes, Materials and Environment Laboratory (PMEL), Faculty of Sciences and Techniques, Sidi Mohammed Ben Abdellah University, Road Imouzzer, Fez BP 2202, Morocco;
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Chen W, Gan L, Huang J. Design, Manufacturing and Functions of Pore-Structured Materials: From Biomimetics to Artificial. Biomimetics (Basel) 2023; 8:biomimetics8020140. [PMID: 37092392 PMCID: PMC10123697 DOI: 10.3390/biomimetics8020140] [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: 02/28/2023] [Revised: 03/23/2023] [Accepted: 03/26/2023] [Indexed: 04/25/2023] Open
Abstract
Porous structures with light weight and high mechanical performance exist widely in the tissues of animals and plants. Biomimetic materials with those porous structures have been well-developed, and their highly specific surfaces can be further used in functional integration. However, most porous structures in those tissues can hardly be entirely duplicated, and their complex structure-performance relationship may still be not fully understood. The key challenges in promoting the applications of biomimetic porous materials are to figure out the essential factors in hierarchical porous structures and to develop matched preparation methods to control those factors precisely. Hence, this article reviews the existing methods to prepare biomimetic porous structures. Then, the well-proved effects of micropores, mesopores, and macropores on their various properties are introduced, including mechanical, electric, magnetic, thermotics, acoustic, and chemical properties. The advantages and disadvantages of hierarchical porous structures and their preparation methods are deeply evaluated. Focusing on those disadvantages and aiming to improve the performance and functions, we summarize several modification strategies and discuss the possibility of replacing biomimetic porous structures with meta-structures.
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Affiliation(s)
- Weiwei Chen
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, State Key Laboratory of Silkworm Genome Biology, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Lin Gan
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, State Key Laboratory of Silkworm Genome Biology, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Jin Huang
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, State Key Laboratory of Silkworm Genome Biology, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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Li Z, Zhang Y, Huang Q, Chen Z, Wang W, Li W. Tailorable Lignocellulose-Based Aerogel to Achieve the Balance between Evaporation Enthalpy and Water Transport Rate for Efficient Solar Evaporation. ACS APPLIED MATERIALS & INTERFACES 2023; 15:11827-11836. [PMID: 36848290 DOI: 10.1021/acsami.2c22615] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Solar-driven interfacial evaporation technology has become an effective approach to alleviate freshwater shortage. To improve its evaporation efficiency, the pore-size dependence of the water transport rate and evaporation enthalpy in the evaporator should be further investigated. Based on the transportation of water and nutrients in natural wood, we facilely designed a lignocellulose aerogel-based evaporator using carboxymethyl nanocellulose (CMNC) cross-linking, bidirectional freezing, acetylation, and MXene-coating. The pore size of the aerogel was adjusted by controlling its CMNC content. When the channel diameter of the aerogel-based evaporator increased from 21.6 to 91.9 μm, the water transport rate of the proposed evaporator increased from 31.94 to 75.84 g min-1, while its enthalpy increased from 1146.53 to 1791.60 kJ kg-1. At a pore size of 73.4 μm, the evaporation enthalpy and water transport rate of the aerogel-based evaporator achieved a balance, leading to the best solar evaporation rate (2.86 kg m-2 h-1). The evaporator exhibited excellent photothermal conversion efficiency (93.36%) and salt resistance (no salt deposition after three cycles of 8 h). This study could guide the development of efficient solar-driven evaporators for seawater desalination.
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Affiliation(s)
- Zerong Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China
| | - Yuping Zhang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China
| | - Qiaoling Huang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China
| | - Zhuoling Chen
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China
| | - Wei Wang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, China
| | - Wei Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China
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Muralidharan V, Gochhayat S, Palanivel S, Madhan B. Influence of preparation techniques of cellulose II nanocrystals as reinforcement for tannery solid waste-based gelatin composite films. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:14284-14303. [PMID: 36152092 PMCID: PMC9510280 DOI: 10.1007/s11356-022-23058-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
Tannery waste-based gelatin composite film reinforced with cellulose II nanocrystal (CNC II) extracted from wet wipes using three different hydrolysis techniques is explored for its functional properties and possible utilization as a biodegradable packaging material. CNC II isolated using hydrogen peroxide (PCNC), citric acid (CCNC), and hydrochloric acid (HCNC) differed in morphological and crystalline character as investigated using DLS, FE-SEM, FTIR, and XRD analysis. The crystallinity of PCNC, CCNC, and HCNC was found to be 81.1%, 75.4%, and 86.1%, respectively. The highly crystalline CNC II (PCNC) incorporation improved mechanical stiffness of rawhide trimming waste-based gelatin films by 50% compared to control gelatin film. Maximum thermal decomposition with Tmax of 329 °C was obtained for gelatin films with PCNC nano-reinforcement. Films with CNC II were structurally stable and sufficiently antibacterial against Gram-positive S. aureus microbial strain. Strong interfacial non-covalent and hydrogen bonding interactions between gelatin and cellulose II nanocrystal have likely enhanced the properties of the composite films. Incorporation of CNC II reduced the surface wettability of the films and nanocomposites absorbed UV radiation as evidenced by transmittance value T280 of 0.19%. Nanocomposite films degraded up to 79.9% of initial mass within 7 days of soil burial. Furthermore, based on the optimized system, single-use packaging application of eggplant seeds has been demonstrated.
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Affiliation(s)
- Vimudha Muralidharan
- Centre for Academic and Research Excellence (CARE), CSIR-Central Leather Research Institute, Adyar, Chennai, Tamil Nadu, 600 020, India
- Department of Leather Technology, A C Tech (Housed at CSIR-CLRI), Anna University, Chennai, Tamil Nadu, 600 025, India
| | - Saiprasad Gochhayat
- Department of Chemical Engineering, BITS-Pilani, Hyderabad Campus, Hyderabad, Telangana, 500 078, India
| | - Saravanan Palanivel
- Department of Leather Technology, A C Tech (Housed at CSIR-CLRI), Anna University, Chennai, Tamil Nadu, 600 025, India
- Leather Process Technology Department, CSIR-Central Leather Research Institute, Adyar, Chennai, Tamil Nadu, 600 020, India
| | - Balaraman Madhan
- Centre for Academic and Research Excellence (CARE), CSIR-Central Leather Research Institute, Adyar, Chennai, Tamil Nadu, 600 020, India.
- Department of Leather Technology, A C Tech (Housed at CSIR-CLRI), Anna University, Chennai, Tamil Nadu, 600 025, India.
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Hajji Nabih M, Boulika H, El Hajam M, Alghonaim MI, Kandri NI, Alsalamah SA, Boufahja F. Successive Solvent Extraction, Characterization and Antioxidant Activities of Cardoon Waste (Leaves and Stems) Extracts: Comparative Study. Molecules 2023; 28:molecules28031129. [PMID: 36770795 PMCID: PMC9921796 DOI: 10.3390/molecules28031129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 01/24/2023] Open
Abstract
The main interest in the valorization of vegetable wastes is due to the peculiarity of their chemical composition in substances that present important properties. Among these substances, antioxidants could replace those industrially manufactured. In the present study, three solvents of different polarities (hexane, ethanol, and water) were applied for the extraction of phenolic compounds from Cynara cardunculus L. waste using two extraction methods: Soxhlet Extraction (SE) and Ultrasonic-Assisted Extraction (UAE). The obtained extracts were then characterized by Fourier-Transform Infrared (FTIR) spectroscopy and spectrophotometric determination of Total Phenolics (TPC), Total Flavonoids (TFC), and Condensed Tannins (CT). Total Antioxidant Capacity (TAC) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity of ethanol and water extracts of leaves and stems were also evaluated. High extraction yields were obtained by UAE. Water extracts had high yield regardless of the technique used for leaves and stems, and these extracts showed high TAC of 534.72 ± 3.83 mg AAE/g FM for leaves and 215.70 ± 8.87 mg AAE/g FM (mg of ascorbic acid equivalent per g of FM) for stems, and IC50 of 2077.491 μg/mL for leaves and 1248.185 μg/mL for stems. We explain the latter by the high total phenolic contents (TPCs), which reach 579.375 ± 3.662 mg GAE/g FM (mg of gallic acid equivalents per g of fresh matter) for leaves and 264.906 ± 3.500 mg GAE/g FM for stems. These results confirmed that the leaves and stems of the studied cardoon waste were, indeed, interesting sources of natural antioxidants.
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Affiliation(s)
- Meryem Hajji Nabih
- Signals, Systems and Components Laboratory (SSC), Faculty of Sciences and Techniques, Sidi Mohamed Ben Abdellah University, Route Imouzzer, Atlas, Fez BP2202, Morocco
| | - Hamza Boulika
- Signals, Systems and Components Laboratory (SSC), Faculty of Sciences and Techniques, Sidi Mohamed Ben Abdellah University, Route Imouzzer, Atlas, Fez BP2202, Morocco
| | - Maryam El Hajam
- Signals, Systems and Components Laboratory (SSC), Faculty of Sciences and Techniques, Sidi Mohamed Ben Abdellah University, Route Imouzzer, Atlas, Fez BP2202, Morocco
- Advanced Structures and Composites Center, University of Maine, Orono, ME 04469, USA
| | - Mohammed I. Alghonaim
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Noureddine Idrissi Kandri
- Signals, Systems and Components Laboratory (SSC), Faculty of Sciences and Techniques, Sidi Mohamed Ben Abdellah University, Route Imouzzer, Atlas, Fez BP2202, Morocco
| | - Sulaiman A. Alsalamah
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Fehmi Boufahja
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
- Correspondence:
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