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Wang Z, Lv Z, Su Q, Lai X, Huang Z, Li K, Deng L, Li J. Polyethylene glycol crosslinked modified chitosan/halloysite nanotube composite aerogel microspheres for efficient adsorption of melanoidin. Int J Biol Macromol 2024; 266:131013. [PMID: 38527681 DOI: 10.1016/j.ijbiomac.2024.131013] [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: 11/07/2023] [Revised: 03/03/2024] [Accepted: 03/18/2024] [Indexed: 03/27/2024]
Abstract
Melanoidins are widely present in molasses wastewater and are dark-colored macromolecules that are hazardous to the environment. Currently, adsorption methods can effectively remove melanoidins from wastewater. However, existing adsorbents have shown unsatisfactory removal efficiency for melanoidins, making practical application challenging. Polyethylene glycol crosslinked modified chitosan/halloysite nanotube composite aerogel microspheres (PCAM@HNTs) were developed as a highly efficient adsorbent for melanoidins. The removal rate of PCAM@HNTs for melanoidins was 98.53 % at adsorbent dosage 0.4 mg/mL, pH 7, temperature 303 K and 450 mg/L initial melanoidins concentration, and the corresponding equilibrium adsorption capacity was 1108.49 mg/g. The analysis results indicate that the adsorption of melanoidins by PCAM@HNTs is a spontaneous and endothermic process. It fits well with pseudo-second-order kinetic models and the Freundlich isotherm equation. The adsorption of PCAM@HNT on melanoidins is primarily attributed to electrostatic and hydrogen bonding interactions. Furthermore, PCAM@HNTs exhibit excellent biocompatibility and are nonhazardous. Therefore, PCAM@HNTs proved to be an ideal adsorbent for the decolorization of molasses wastewater.
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Affiliation(s)
- Zhaoyang Wang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Zhikun Lv
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Qianyu Su
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Xinyu Lai
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Zhi Huang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Kai Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Ligao Deng
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China.
| | - Jianbin Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
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Zhang Z, Zhong Y, Sun P, Zhao P, Li H, Liu X. Magnetically separable Co 0.6Fe 2.4O 4/MIL-101-NH 2 adsorbent for Congo red efficient removal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:9764-9783. [PMID: 38194177 DOI: 10.1007/s11356-023-31796-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 12/27/2023] [Indexed: 01/10/2024]
Abstract
The development of effective and practical adsorbents for eliminating pollutants still remains a significant challenge. Herein, we synthesized a novel magnetically separable composite, Co0.6Fe2.4O4/MIL-101-NH2, through the in-situ growth of MIL-101-NH2 on magnetic nanoparticles, designed specifically for the removal of Congo red (CR) from aqueous solutions. MIL-101-NH2 possessed high BET surface area (240.485 m2•g-1) and facile magnetic separation function and can be swiftly separated (within 30 s) through an external magnetic field post-adsorption. The investigation systematically explored the influence of crucial parameters, including adsorbent dosage, pH, adsorption duration, temperature, and the presence of interfering ions, on CR adsorption performance. Findings indicate that CR adsorption adheres to the pseudo-second-order (PSO) kinetic model and the Langmuir isotherm model. Thermodynamic analysis reveals the spontaneity, endothermic nature, and orderly progression of the adsorption process. Remarkably, the adsorbent with 0.1 g•L-1 boasts an impressive maximum adsorption capacity of 1756.19 mg•g-1 for CR at 298.15 K, establishing its competitive advantage. The reuse of the adsorbent over 5 cycles remains 78% of the initial adsorption. The CR adsorption mechanisms were elucidated, emphasizing the roles of π-π interactions, electrostatic forces, hydrogen bonding, and metal coordination. Comparison with other dyes, such as methylene blue (MB) and methyl orange (MO), and exploration of adsorption performance in binary dye systems, demonstrates the superior capacity and selectivity of this adsorbent for CR. In conclusion, our magnetically separable metal-organic framework (MOF)based composite presents a versatile and effective solution for CR removal, with promising applications in water treatment and environmental remediation.
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Affiliation(s)
- Zhenhong Zhang
- School of Nursing, Wuhan University, Wuhan, 430079, People's Republic of China
| | - Yuye Zhong
- School of Nursing, Wuhan University, Wuhan, 430079, People's Republic of China
| | - Peng Sun
- Youyi Campus of Northwestern Polytechnical University, 127 West Youyi Road, Beilin District, Xi'an, Shaanxi, 710072, People's Republic of China
| | - Pingping Zhao
- School of Nursing, Wuhan University, Wuhan, 430079, People's Republic of China
| | - Houbin Li
- School of Nursing, Wuhan University, Wuhan, 430079, People's Republic of China.
| | - Xinghai Liu
- Electronic Information School, Wuhan University, Wuhan, 430079, People's Republic of China
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Chen B, Zhou X, Wang X, Zhao S, Jing Z, Jin Y, Pi X, Du Q, Chen L, Li Y. High-efficient removal of anionic dye from aqueous solution using metal-organic frameworks@chitosan aerogel rich in benzene structure. Int J Biol Macromol 2024; 256:128433. [PMID: 38008141 DOI: 10.1016/j.ijbiomac.2023.128433] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/17/2023] [Accepted: 11/23/2023] [Indexed: 11/28/2023]
Abstract
With the exponentially increase of dye pollutants, the purification of dye wastewater has been an urgent ecological problem. As a novel type of porous adsorbent, metal-organic frameworks still face challenges in recyclability, agglomeration, and environmentally unfriendly synthesis. Herein, MOF-525 was in-situ growth onto the surface of the chitosan (CS) beads to fabricate MOF-525@CS aerogel. CS was utilized as substrate to uniformly disperse MOF-525, thereby significantly mitigating agglomeration and improving recyclability of MOF-525. The characterization results shown that MOF-525@CS aerogel had a high specific surface area of 103.0 m2·g-1, and MOF-525 was uniformly distributed in the 3D porous structure of CS, and the presence of benzoic acid was detected. The MOF-525@CS aerogel had a remarkable adsorption capacity of 1947 mg·g-1 for Congo red, which is greater than the sum of its parts. MOF-525@CS aerogel also inherited the rapid adsorption ability of MOF-525, removing 80 % of Congo red within 600 min. Such excellent adsorption performance can be attributed to the benzoic acid trapped by CS via CN band to enhance the π-π stacking interactions. Additionally, the utilization of benzoic acid makes the synthesis process of MOF-525@CS aerogel more environmentally friendly. The high-efficient MOF-525@CS aerogel is a competitive candidate for dye pollution adsorption.
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Affiliation(s)
- Bing Chen
- College of Mechanical and Electrical Engineering, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China
| | - Xiaoshuang Zhou
- State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Materials Science and Engineering, Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Institute of Marine Biobased Materials, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China
| | - Xinxin Wang
- College of Mechanical and Electrical Engineering, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China
| | - Shiyong Zhao
- College of Mechanical and Electrical Engineering, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China
| | - Zhenyu Jing
- College of Mechanical and Electrical Engineering, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China
| | - Yonghui Jin
- College of Mechanical and Electrical Engineering, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China
| | - Xinxin Pi
- College of Mechanical and Electrical Engineering, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China
| | - Qiuju Du
- State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Materials Science and Engineering, Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Institute of Marine Biobased Materials, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China
| | - Long Chen
- State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Materials Science and Engineering, Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Institute of Marine Biobased Materials, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China.
| | - Yanhui Li
- College of Mechanical and Electrical Engineering, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China.
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Mao S, Shen T, Zhao Q, Zhu S, Han T, Jin X, Ding F, Wang H, Gao M. A range of bifunctional vermiculite-based adsorbents for simultaneous removal of Congo red and permanganate. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
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Effective melanoidin adsorption of polyethyleneimine- functionalised molasses-based porous carbon: Adsorption behaviours and microscopic mechanisms. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.123016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Teng Y, Zhu J, Xiao S, Ma Z, Huang T, Liu Z, Xu Y. Exploring chitosan-loaded activated carbon fiber for the enhanced adsorption of Pb(II)-EDTA complex from electroplating wastewater in batch and continuous processes. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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