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Su T, Shang H, Su X, Sun Z, Li Y, Li L, Zhang Z, Geng R, Chen S. High-capacity adsorption of organic dyes using separable pullulan gel encapsulated with PDA-modified ZIF-8. Carbohydr Polym 2024; 345:122562. [PMID: 39227101 DOI: 10.1016/j.carbpol.2024.122562] [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: 05/04/2024] [Revised: 07/08/2024] [Accepted: 07/30/2024] [Indexed: 09/05/2024]
Abstract
In this investigation, a hydrogel adsorbent featuring remarkable efficiency in dye adsorption was successfully synthesized by the integration of natural polysaccharide (pullulan) and nanoparticles (ZIF-8@PDA). The prepared natural polysaccharide nanocomposite hydrogels not only exhibit superior mechanical strength and biocompatibility, but also demonstrate adeptness in the removal of dye pollutants. The dye removal capacities were 615.4 mg/g for malachite green (MG) and 525.8 mg/g for Congo red (CR), respectively. Notably, the adsorption process exhibits minimal susceptibility to variations in water quality and the presence of co-existing ions. The pH-responsive surface charge conversion capability of the adsorbent renders it recyclable, maintaining a dye adsorption performance exceeding 88 % even after 5 cycles of repeated usage. Overall, these environmentally friendly natural polysaccharide nanocomposite hydrogels hold potential for addressing complex wastewater treatment challenges and long-term use.
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Affiliation(s)
- Ting Su
- Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang 236037, China
| | - Hongxia Shang
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, China
| | - Xinru Su
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, China
| | - Zhixian Sun
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, China
| | - Yuehan Li
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, China
| | - Linwen Li
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, China
| | - Zhen Zhang
- Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang 236037, China.
| | - Renyong Geng
- Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang 236037, China.
| | - Shuisheng Chen
- Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang 236037, China.
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Zhao X, Yang M, Shi Y, Sun L, Zheng H, Wu M, Gao G, Ma T, Li G. Multifunctional bacterial cellulose-bentonite@polyethylenimine composite membranes for enhanced water treatment: Sustainable dyes and metal ions adsorption and antibacterial properties. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135267. [PMID: 39047552 DOI: 10.1016/j.jhazmat.2024.135267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 07/10/2024] [Accepted: 07/18/2024] [Indexed: 07/27/2024]
Abstract
Developing multifunctional materials for water treatment remains a significant challenge. Bacterial cellulose (BC) holds immense potential as an adsorbent with high pollutant-binding capacity, hydrophilicity, and biosafety. In this study, N-acetylglucosamine was used as a carbon source to ferment BC, incorporating amide bonds in situ. Bentonite, renowned for its adsorption properties, was added to the culture medium, resulting in BC-bentonite composite membranes via a one-step fermentation process. Polyethyleneimine (PEI) was crosslinked with amide bonds on the membrane via glutaraldehyde through Schiff base reactions to enhance the performance of the composite membrane. The obtained membrane exhibited increased hydrophilicity, enhanced active adsorption sites, and enlarged specific surface area. It not only physically adsorbed contaminants through its unique structure but also effectively captured dye molecules (Congo red, Methylene blue, Malachite green) via electrostatic interactions. Additionally, it formed stable complexes with metal ions (Cd²⁺, Pb²⁺, Cu²⁺) through coordination and effectively adsorbed their mixtures. Moreover, the composite membrane demonstrated the broad-spectrum antibacterial activity, effectively inhibiting the growth of tested bacteria. This study introduces an innovative method for fabricating composite membranes as adsorbents for complex water pollutants, showing significant potential for long-term wastewater treatment of organic dyes, heavy metal ions, and pathogens.
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Affiliation(s)
- Xueqing Zhao
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Mingbo Yang
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yucheng Shi
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Liyuan Sun
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Haolong Zheng
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Mengmeng Wu
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Ge Gao
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China.
| | - Ting Ma
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; Tianjin Engineering Technology Center of Green Manufacturing Biobased Materials, Tianjin 300071, China.
| | - Guoqiang Li
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; Tianjin Engineering Technology Center of Green Manufacturing Biobased Materials, Tianjin 300071, China.
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Zhao N, Yuan W. Injectable and self-healable hydrogel based on pullulan polysaccharide loading platelet-rich plasma and metal-phenol network nanoparticles for infectious wound healing. Int J Biol Macromol 2024:135361. [PMID: 39244111 DOI: 10.1016/j.ijbiomac.2024.135361] [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: 03/31/2024] [Revised: 09/03/2024] [Accepted: 09/04/2024] [Indexed: 09/09/2024]
Abstract
Due to elevated glucose levels, oxidative stress, weakened immune function, and delayed angiogenesis, diabetic wounds are difficult to heal. However, current dressings often do not successfully achieve the desired therapeutic outcome for diabetic wounds. Platelet rich plasma (PRP) is widely used in the treatment of diabetic wounds. Even so, the sudden release of growth factors or proteins in PRP frequently hampers the therapeutic efficacy. Therefore, it is of considerable clinical value to achieve long-term release of active molecules in PRP and to create more effective diabetic wound dressings. Here, PRP was combined with pullulan polysaccharide derivatives (OPD) and polylysine derivatives (EPL-BA) to form a multifunctional hydrogel backbone. Tea polyphenols (TP), gallic acid (GA), and metal ions (Cu2+) were utilized to prepare metal-phenol network nanoparticles (TGMPN) which were encapsulated in the hydrogel system. The EPL-BA/OPD/PRP/TGMPN (EOPM) composite hydrogel showed injectable and self-healing properties. The hydrogel system could effectively remove reactive oxygen species (ROS) and showed excellent antibacterial properties against different bacteria. The results showed that EOPM hydrogel was effective in reducing the inflammatory response and promoting the regeneration of blood vessels and neoplastic tissues, thus greatly accelerating the repair of infected wounds.
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Affiliation(s)
- Nuoya Zhao
- School of Materials Science and Engineering, Key Laboratory of Advanced Civil Materials of Ministry of Education, Tongji University, Shanghai 201804, People's Republic of China
| | - Weizhong Yuan
- School of Materials Science and Engineering, Key Laboratory of Advanced Civil Materials of Ministry of Education, Tongji University, Shanghai 201804, People's Republic of China.
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Kamari S, Shahbazi A, Ghorbani F. Adsorption optimization and modeling of Hg 2+ ions from aqueous solutions using response surface methodology by SNPs-CS bionanocomposite produced from rice husk agro-industrial waste as a novel environmentally-friendly bionanoadsorbent. CHEMOSPHERE 2024; 351:141279. [PMID: 38266879 DOI: 10.1016/j.chemosphere.2024.141279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/08/2024] [Accepted: 01/21/2024] [Indexed: 01/26/2024]
Abstract
In the present research, extraction of silica (SiO2) from rice husk (RH) was optimized and silica nanoparticles (SNPs) was produced using it and functionalized by chitosan (CS) functional groups to obtain CS functionalized SNPs (SNPs-CS) bionanocomposite for the first time. The physical and chemical characteristics of the produced materials were examined using structural analyses. The results of structural analyses confirmed the fine structure of the produced materials. The SNPs-CS bionanocomposite was applied to effectively remove Hg2+ ions from aqueous solutions as an environmentally-friendly bionanoadsorbent and optimization and modeling of the adsorption conditions was explored using designed experiments by Design-Expert software with central composite design (CCD) and response surface methodology (RSM). Optimum adsorption conditions were obtained as solution pH of 6, SNPs-CS dosage of 0.1 g L-1 and Hg2+ ions concentration of 100 mg L-1 by removal efficiency of 85% and desirability function of 0.876. The results of adsorption kinetic showed a better fit of the pseudo-second-order model with experimental data, indicating the chemisorption of the adsorption process. The better fit of the Langmuir model with experimental data was confirmed by the results of adsorption isotherms, demonstrating monolayer adsorption on the homogeneous surface. The adsorption thermodynamic results illustrated the exothermicity and spontaneity of the adsorption reaction. The results of SNPs-CS recovery depicted its excellent recovery ability of removal efficiency with more than 90% after five consecutive adsorption and desorption cycles, which proved high potential of the produced bionanocomposite for industrial applications.
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Affiliation(s)
- Soran Kamari
- Department of Environmental Technologies, Environmental Sciences Research Institute, Shahid Beheshti University, 1983969411, Tehran, Iran.
| | - Afsaneh Shahbazi
- Department of Environmental Technologies, Environmental Sciences Research Institute, Shahid Beheshti University, 1983969411, Tehran, Iran
| | - Farshid Ghorbani
- Department of Environmental Sciences, Faculty of Natural Resources, University of Kurdistan, 6617715175, Sanandaj, Iran
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Ain QU, Rasheed U, Liu K, Chen Z, Tong Z. Synthesis of 2-amino-terephthalic acid crosslinked chitosan/bentonite hydrogel; an efficient adsorbent for anionic dyes and laccase. Int J Biol Macromol 2024; 258:128865. [PMID: 38154712 DOI: 10.1016/j.ijbiomac.2023.128865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 12/06/2023] [Accepted: 12/15/2023] [Indexed: 12/30/2023]
Abstract
This research article presents the fabrication of NH2-terephthalic acid crosslinked chitosan-bentonite composite, which adopted a facile synthesis approach and offered efficient adsorption capacity for organic dyes. A novel hydrogel material named CB 5:1 demonstrated remarkable adsorption for anionic dyes (Congo red (CR) and brilliant blue (BB)) while showing a negligible affinity for cationic dyes. Adsorption isotherm studies revealed the adsorption capacity of 4950 mg/g and 2053 mg/g (per g of composite's dry weight) for CR and BB following the Langmuir adsorption model. Kinetics and thermodynamic studies were also conducted while the adsorption of anionic dyes in the presence of metal ions, cationic dyes, anionic dyes, and in simulated water remained unaffected. Laccase, an industrially important enzyme, was also immobilized on CB 5:1 to achieve enzyme stability and reusability, resulting in a staggering immobilization capacity (4782 mg/g) at pH 6.0. Laccase immobilized product was employed to perform dye degradation (> 90 % for CR and > 75 % for BB), and the reusability was tested. Overall, our crosslinked product proved appealing for removing high concentrations of anionic organic dyes from polluted water and could be envisaged for practical use.
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Affiliation(s)
- Qurat Ul Ain
- Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, School of Civil Engineering and Architecture, Guangxi University, China; Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China
| | - Usman Rasheed
- Institute of Applied Microbiology, College of Agriculture, Guangxi University, Nanning 530005, China
| | - Kun Liu
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China
| | - Zheng Chen
- Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, School of Civil Engineering and Architecture, Guangxi University, China
| | - Zhangfa Tong
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China.
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Heng Y, Fang Z, Li J, Luo L, Zheng M, Huang H. Defective metal-organic framework derived from the waste plastic bottles for rapid and efficient nitroimidazole antibiotics removal. J Colloid Interface Sci 2023; 650:836-845. [PMID: 37450972 DOI: 10.1016/j.jcis.2023.07.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 06/22/2023] [Accepted: 07/08/2023] [Indexed: 07/18/2023]
Abstract
In order to alleviate the pressure on the ecological environment and human health caused by wastewater of nitroimidazole antibiotics and poly(ethylene terephthalate) (PET) plastic waste, we propose a strategy of using defective MIL-68(Al) (d-MIL-68(Al)) derived from waste PET plastic for dimetridazole (DMZ) capture. The resulting d-MIL-68(Al) exhibits an excellent adsorption capacity of 555.6 mg g-1, which is three times of pristine MIL-68(Al) (181.8 mg g-1), demonstrating that the defective structures in d-MIL-68(Al) play a crucial role in the adsorption process. Remarkably, d-MIL-68(Al) can remove nearly 97% of DMZ in the first 10 s, and the removal efficiency reached 99% after adsorption equilibrium, affording a record kinetic rate constant k2 (2.84 g mg-1 min-1). In short, d-MIL-68(Al) possesses both an ultrafast adsorption rate and outstanding adsorption capacity toward DMZ compared with reported adsorbents. Mechanism analysis reveals that the excellent DMZ adsorption performances can be ascribed to the abundant active sites caused by defective structures, as well as the π-π stacking and hydrogen bonding interactions between MOF and DMZ. Hence, d-MIL-68(Al) derived from waste PET plastic is an efficient porous adsorbent for rapid DMZ removal, which not only possesses great potential for wastewater treatment, but also reduces the harmful PET plastic waste, reflecting the concept of sustainable development.
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Affiliation(s)
- Yu Heng
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
| | - Zhi Fang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
| | - Jian Li
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China.
| | - Liqiong Luo
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
| | - Mingze Zheng
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Hongliang Huang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China.
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