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Cai J, Mu X, Xue J, Chen J, Liu Z, Guo F. Mathematical Modeling of NaCl Scaling Development in Long-Distance Membrane Distillation for Improved Scaling Control. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3629. [PMID: 39124294 PMCID: PMC11313132 DOI: 10.3390/ma17153629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 07/13/2024] [Accepted: 07/20/2024] [Indexed: 08/12/2024]
Abstract
Membrane distillation is a novel membrane-based separation technology with the potential to produce pure water from high-salinity brine. It couples transport behaviors along the membrane and across the membrane. The brine in the feed is gradually concentrated due to the permeate flux across the membrane, which is a significant factor in initiating the scaling behavior on the membrane surface along the feed flow direction. It is of great interest to investigate and estimate the development of scaling on the membrane surface. This work specifically focuses on a long-distance membrane distillation process with a sodium chloride solution as the feed. A modeling approach has been developed to estimate the sodium chloride scaling development on the membrane surface along the flow direction. A set of experiments was conducted to validate the results. Based on mathematical simplification and analytical fitting, a simplified model was summarized to predict the initiating position of sodium chloride scaling on the membrane, which is meaningful for scaling control in industrial-scale applications of membrane distillation.
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Affiliation(s)
- Jingcheng Cai
- School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China; (J.C.); (X.M.); (J.C.); (Z.L.)
| | - Xingsen Mu
- School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China; (J.C.); (X.M.); (J.C.); (Z.L.)
| | - Jian Xue
- Guangdong Provincial Key Laboratory of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China;
| | - Jiaming Chen
- School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China; (J.C.); (X.M.); (J.C.); (Z.L.)
| | - Zeman Liu
- School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China; (J.C.); (X.M.); (J.C.); (Z.L.)
| | - Fei Guo
- School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China; (J.C.); (X.M.); (J.C.); (Z.L.)
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Sanmugam A, Sellappan LK, Sridharan A, Manoharan S, Sairam AB, Almansour AI, Veerasundaram S, Kim HS, Vikraman D. Chitosan-Integrated Curcumin-Graphene Oxide/Copper Oxide Hybrid Nanocomposites for Antibacterial and Cytotoxicity Applications. Antibiotics (Basel) 2024; 13:620. [PMID: 39061302 PMCID: PMC11273410 DOI: 10.3390/antibiotics13070620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 06/30/2024] [Accepted: 07/02/2024] [Indexed: 07/28/2024] Open
Abstract
This study deals with the facile synthesis of a single-pot chemical technique for chitosan-curcumin (CUR)-based hybrid nanocomposites with nanostructured graphene oxide (GO) and copper oxide (CuO) as the antibacterial and cytotoxic drugs. The physicochemical properties of synthesized hybrid nanocomposites such as CS-GO, CS-CuO, CS-CUR-GO, and CS-CUR-GO/CuO were confirmed with various advanced tools. Moreover, the in vitro drug release profile of the CS-CUR-GO/CuO nanocomposite exhibited sustained and controlled release during different time intervals. Also, the antibacterial activity of the CS-CUR-GO/CuO hybrid nanocomposite presented the maximum bactericidal effect against Staphylococcus aureus and Escherichia coli pathogens. The hybrid nanocomposites revealed improved cytotoxicity behaviour against cultured mouse fibroblast cells (L929) via cell adhesion, DNA damage, and proliferation. Thus, the chitosan-based hybrid nanocomposites offer rich surface area, biocompatibility, high oxidative stress, and bacterial cell disruption functionalities as a potential candidate for antibacterial and cytotoxicity applications.
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Affiliation(s)
- Anandhavelu Sanmugam
- Department of Applied Chemistry, Sri Venkateswara College of Engineering, Sriperumbudur 602117, India; (A.S.); (A.B.S.)
| | - Logesh Kumar Sellappan
- Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, India;
| | | | - Swathy Manoharan
- Department of Biomedical Engineering, KPR Institute of Engineering and Technology, Coimbatore 641407, India;
| | - Ananda Babu Sairam
- Department of Applied Chemistry, Sri Venkateswara College of Engineering, Sriperumbudur 602117, India; (A.S.); (A.B.S.)
| | - Abdulrahman I. Almansour
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
| | - Subha Veerasundaram
- Department of Chemistry, R.M.D. Engineering College, Tiruvallur 601206, India;
| | - Hyun-Seok Kim
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea;
| | - Dhanasekaran Vikraman
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea;
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Salgado P, Rubilar O, Salazar C, Márquez K, Vidal G. In Situ Synthesis of Cu 2O Nanoparticles Using Eucalyptus globulus Extract to Remove a Dye via Advanced Oxidation. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1087. [PMID: 38998692 PMCID: PMC11243407 DOI: 10.3390/nano14131087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 06/19/2024] [Accepted: 06/20/2024] [Indexed: 07/14/2024]
Abstract
Water pollution, particularly from organic contaminants like dyes, is a pressing issue, prompting exploration into advanced oxidation processes (AOPs) as potential solutions. This study focuses on synthesizing Cu2O on cellulose-based fabric using Eucalyptus globulus leaf extracts. The resulting catalysts effectively degraded methylene blue through photocatalysis under LED visible light and heterogeneous Fenton-like reactions with H2O2, demonstrating reusability. Mechanistic insights were gained through analyses of the extracts before and after Cu2O synthesis, revealing the role of phenolic compounds and reducing sugars in nanoparticle formation. Cu2O nanoparticles on cellulose-based fabric were characterized in terms of their morphology, structure, and bandgap via SEM-EDS, XRD, Raman, FTIR, UV-Vis DRS, and TGA. The degradation of methylene blue was pH-dependent; photocatalysis was more efficient at neutral pH due to hydroxyl and superoxide radical production, while Fenton-like reactions showed greater efficiency at acidic pH, primarily generating hydroxyl radicals. Cu2O used in Fenton-like reactions exhibited lower reusability compared to photocatalysis, suggesting deterioration. This research not only advances understanding of catalytic processes but also holds promise for sustainable water treatment solutions, contributing to environmental protection and resource conservation.
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Affiliation(s)
- Pablo Salgado
- Departamento de Ingeniería Civil, Facultad de Ingeniería, Universidad Católica de la Santísima Concepción, Concepción 4090541, Chile
| | - Olga Rubilar
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA-BIOREN), Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco 4811230, Chile
- Departamento de Ingeniería Química, Universidad de La Frontera, Av. Francisco Salazar 01145, Casilla 54-D, Temuco 4811230, Chile
| | - Claudio Salazar
- Centro de Investigación de Polímeros Avanzados (CIPA), Concepción 4051381, Chile
| | - Katherine Márquez
- Centro de Estudios en Alimentos Procesados (CEAP), Campus Lircay, Talca 3460000, Chile
| | - Gladys Vidal
- Grupo de Ingeniería y Biotecnología Ambiental (GIBA-UDEC), Facultad de Ciencias Ambientales, Universidad de Concepción, Concepción 4070386, Chile
- Water Research Center for Agriculture and Mining (CRHIAM), ANID Fondap Center, Victoria 1295, Concepción 4070411, Chile
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Yang Y, Zhang Y, Jiang S, Shan X, Guo X, Liu H, Shen L, Chang W. Enhancing Fenton-like Degradation of Organic Pollutants at Neutral pH by Multivalent Cu NCs/HAp Nanocatalysts. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:827-836. [PMID: 38150270 DOI: 10.1021/acs.langmuir.3c03018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Heterogeneous Fenton-like catalysis is a widely used method for the degradation of organic pollutants. However, it still has some limitations such as low activity in the neutral condition, low conversion rates of metals with different valence states, and potential secondary metal pollution. In this study, a Fenton-like nanocatalyst was first created by generating ultrasmall copper nanoclusters (Cu NCs) on the surface of hydroxyapatite (HAp) through a process of doping followed by modification. This resulted in the formation of a composite nanocatalyst known as Cu NCs/HAp. With the help of hydrogen peroxide (H2O2), Cu NCs/HAp exhibits an outstanding Fenton-like catalytic performance by efficiently degrading organic dyes such as methylene blue under mild neutral conditions. The removal rate can reach over 83% within just 30 min, demonstrating ideal catalytic universality and stability. The improved Fenton-like catalytic performance of Cu NCs/HAp can be ascribed to the synergistic effect of the multivalent Cu species through two simultaneous reaction pathways. During route I, the embedded Cu NCs with a core-shell Cu0/Cu+ structure can undergo sequential oxidation to form Cu2+, which continuously activates H2O2 to generate hydroxyl radicals (•OH) and singlet oxygen (1O2). In route II, Cu2+ produced from route I and initially adsorbed on the surface of HAp can be reduced by H2O2, thus regenerating Cu+ species for route I and achieving a closed-loop reaction. This work has confirmed that Cu NCs loaded on HAp may be an alternative Fenton-like catalyst for degradation of organic pollutants and environmental remediation, opening up new avenues for potential applications of other Cu NCs in future water pollution control.
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Affiliation(s)
- Ying Yang
- College of Materials and Chemical Engineering, West Anhui University, Lu'an, Anhui 237012, P. R. China
| | - Yunhui Zhang
- College of Materials and Chemical Engineering, West Anhui University, Lu'an, Anhui 237012, P. R. China
| | - Shutong Jiang
- College of Materials and Chemical Engineering, West Anhui University, Lu'an, Anhui 237012, P. R. China
| | - Xianghuan Shan
- College of Materials and Chemical Engineering, West Anhui University, Lu'an, Anhui 237012, P. R. China
| | - Xu Guo
- College of Materials and Chemical Engineering, West Anhui University, Lu'an, Anhui 237012, P. R. China
| | - Haiqing Liu
- College of Materials and Chemical Engineering, West Anhui University, Lu'an, Anhui 237012, P. R. China
| | - Lirui Shen
- College of Materials and Chemical Engineering, West Anhui University, Lu'an, Anhui 237012, P. R. China
| | - Wengui Chang
- College of Materials and Chemical Engineering, West Anhui University, Lu'an, Anhui 237012, P. R. China
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Li D, Yang J, Lv S, Li X, Shao L, Zhou C, Xu F. Insights into the Degradation Mechanisms of TCH by Magnetic Fe 3S 4/Cu 2O Composite. Inorg Chem 2023. [PMID: 37368987 DOI: 10.1021/acs.inorgchem.3c01176] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Unique Fe3S4/Cu2O composites were constructed with high Fenton-like photocatalytic activity through the impregnation coprecipitation method. The structure, morphology, optical, magnetic, and photocatalytic properties of the as-prepared composites were explored in detail. The findings suggest that small Cu2O particles were grown on the surface of Fe3S4. The removal efficiency of TCH by Fe3S4/Cu2O was 65.7, 4.75, and 3.67 times higher than that of pure Fe3S4, Cu2O, and the Fe3S4 + Cu2O mixture, respectively, when the mass ratio of Fe3S4 and Cu2O was 1:1 at pH 7.2. The synergistic effect between Cu2O and Fe3S4 was the main factor for TCH degradation. The Cu+ species from Cu2O increased the Fe3+/Fe2+ cycle during the Fenton reaction. •O2- and h+ were the main active radicals; however, •OH and e- played the second role in the photocatalytic degradation reaction. Moreover, the Fe3S4/Cu2O composite retained good recyclability and versatility, and could be conveniently separated by a magnet.
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Affiliation(s)
- Dan Li
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources & Environment, Nanchang University, Nanchang 330031, P. R. China
| | - Jiahui Yang
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources & Environment, Nanchang University, Nanchang 330031, P. R. China
| | - Shuang Lv
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources & Environment, Nanchang University, Nanchang 330031, P. R. China
| | - Xiaopeng Li
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources & Environment, Nanchang University, Nanchang 330031, P. R. China
| | - Li Shao
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources & Environment, Nanchang University, Nanchang 330031, P. R. China
| | - Caiyun Zhou
- School of Nursing, Nanchang University, Nanchang 330031, P. R. China
| | - Feigao Xu
- College of Chemistry & Chemical Engineering, Nanchang University, Nanchang 330031, P. R. China
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Hu X, Zhao Y, Xiao W, He G, Jiang H, Ruan X, Jiang X. Improved Spherical Particle Preparation of Ceftriaxone Sodium via Membrane-Assisted Spherical Crystallization. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c04424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- Xueyan Hu
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Yiting Zhao
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Wu Xiao
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Gaohong He
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
- School of Chemical Engineering at Panjin, Dalian University of Technology, Panjin 124221, China
| | - Hanyu Jiang
- Science and Technology on Combustion and Explosion Laboratory, Xi’an Modern Chemistry Research Institute, Xi’an 710065, China
| | - Xuehua Ruan
- School of Chemical Engineering at Panjin, Dalian University of Technology, Panjin 124221, China
| | - Xiaobin Jiang
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
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