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Zhang J, Wu E, Qian B, Cai M, Bai JQ, Jiang Y, Chen J, Mao CJ, Sun S. Reinforcing Cd-S bonds through morphology engineering for enhanced intrinsic photocatalytic stability of CdS. J Colloid Interface Sci 2024; 677:963-973. [PMID: 39128290 DOI: 10.1016/j.jcis.2024.08.024] [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: 06/19/2024] [Revised: 07/21/2024] [Accepted: 08/04/2024] [Indexed: 08/13/2024]
Abstract
Effectively mitigating photocorrosion is paramount for achieving high-efficiency and sustainable hydrogen production through photocatalytic water splitting over CdS. In this work, we develop a morphology engineering strategy with adjustable Cd-S bond energy through a simple chemical bath deposition method to synthesize novel hollow hemispherical CdS (H-CdS). The morphologic structure CdS can be precisely controlled by adjusting the reaction temperature, time and pH. Compared with common morphologies of CdS, H-CdS, with its reinforced Cd-S bonding, exhibits not only improved photocatalytic hydrogen evolution activity (20.04 mmol/g/h) but also exceptional resistance to photocorrosion, resulting in outstanding cyclic stability even without the aid of cocatalysts or the introduction of other semiconductors. Comprehensive characterizations reveal that the photocorrosion resistance of H-CdS stems from the high Cd-S bond strength. Moreover, in-situ infrared spectroscopy confirms alterations in the properties and activities of the various CdS morphologies after photocatalytic reaction due to photocorrosion. We thoroughly describe the relationship among morphology, surface energy, bond energy and photocorrosion resistance. Our findings present a novel strategy for mitigating the photocorrosion of CdS and offer valuable insights for future research on CdS photocatalysts aimed at stable water splitting.
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Affiliation(s)
- Jun Zhang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, China
| | - Enci Wu
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, China
| | - Baohao Qian
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, China
| | - Mengdie Cai
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, China
| | - Jia-Qi Bai
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, China
| | - Yong Jiang
- Shanghai Synchrotron Radiation Facility, Zhangjiang National Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Jingshuai Chen
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, China.
| | - Chang-Jie Mao
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, China
| | - Song Sun
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, China
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2
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Jiang R, Xiao M, Zhu HY, Zhao DX, Zang X, Fu YQ, Zhu JQ, Wang Q, Liu H. Sustainable chitosan-based materials as heterogeneous catalyst for application in wastewater treatment and water purification: An up-to-date review. Int J Biol Macromol 2024; 273:133043. [PMID: 38857728 DOI: 10.1016/j.ijbiomac.2024.133043] [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: 01/10/2024] [Revised: 04/30/2024] [Accepted: 06/07/2024] [Indexed: 06/12/2024]
Abstract
Water pollution is one of serious environmental issues due to the rapid development of industrial and agricultural sectors, and clean water resources have been receiving increasing attention. Recently, more and more studies have witnessed significant development of catalysts (metal oxides, metal sulfides, metal-organic frameworks, zero-valent metal, etc.) for wastewater treatment and water purification. Sustainable and clean catalysts immobilized into chitosan-based materials (Cat@CSbMs) are considered one of the most appealing subclasses of functional materials due to their high catalytic activity, high adsorption capacities, non-toxicity and relative stability. This review provides a summary of various upgrading renewable Cat@CSbMs (such as cocatalyst, photocatalyst, and Fenton-like reagent, etc.). As for engineering applications, further researches of Cat@CSbMs should focus on treating complex wastewater containing both heavy metals and organic pollutants, as well as developing continuous flow treatment methods for industrial wastewater using Cat@CSbMs. In conclusion, this review abridges the gap between different approaches for upgrading renewable and clean Cat@CSbMs and their future applications. This will contribute to the development of cleaner and sustainable Cat@CSbMs for wastewater treatment and water purification.
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Affiliation(s)
- Ru Jiang
- Institute of Environmental Engineering Technology, Taizhou University, Taizhou, Zhejiang 318000, PR China; Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, Zhejiang 318000, PR China; Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Mei Xiao
- Institute of Environmental Engineering Technology, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Hua-Yue Zhu
- Institute of Environmental Engineering Technology, Taizhou University, Taizhou, Zhejiang 318000, PR China; Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, Zhejiang 318000, PR China; Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou, Zhejiang 318000, PR China.
| | - Dan-Xia Zhao
- Institute of Environmental Engineering Technology, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Xiao Zang
- Institute of Environmental Engineering Technology, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Yong-Qian Fu
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, Zhejiang 318000, PR China; Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Jian-Qiang Zhu
- Institute of Environmental Engineering Technology, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Qi Wang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang 310018, PR China.
| | - Huan Liu
- School of Engineering, The University of British Columbia, Okanagan Campus, 1137 Alumni Avenue, Kelowna, British Columbia V1V 1V7, Canada
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3
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Bouzayani B, Sanromán MÁ. Polymer-Supported Heterogeneous Fenton Catalysts for the Environmental Remediation of Wastewater. Molecules 2024; 29:2188. [PMID: 38792049 PMCID: PMC11124390 DOI: 10.3390/molecules29102188] [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: 03/30/2024] [Revised: 04/26/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024] Open
Abstract
Materials based on polymer hydrogels have demonstrated potential as innovative Fenton catalysts for treating water. However, developing these polymer-supported catalysts with robust stability presents a significant challenge. This paper explores the development and application of polymer-supported heterogeneous Fenton catalysts for the environmental remediation of wastewater, emphasizing the enhancement of metal incorporation into catalysts for improved efficiency. The study begins with an introduction to the heterogeneous Fenton process and its relevance to wastewater treatment. It further delves into the specifics of polymer-supported heterogeneous Fenton catalysts, focusing on iron oxide, copper complexes/nanoparticles, and ruthenium as key components. The synthesis methods employed to prepare these catalysts are discussed, highlighting the innovative approaches to achieve substantial metal incorporation. Operational parameters such as catalyst dosage, pollutant concentration, and the effect of pH on the process efficiency are thoroughly examined. The catalytic performance is evaluated, providing insights into the effectiveness of these catalysts in degrading pollutants. Recent developments in the field are reviewed, showcasing advancements in catalyst design and application. The study also addresses the stability and reusability of polymer-supported heterogeneous Fenton catalysts, critical factors for their practical application in environmental remediation. Environmental applications are explored, demonstrating the potential of these catalysts in addressing various pollutants. The Conclusions offers future perspectives, underlining the ongoing challenges and opportunities in the field, and the importance of further research to enhance the efficacy and sustainability of polymer-supported heterogeneous Fenton catalysts for wastewater treatment.
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Affiliation(s)
- Bakhta Bouzayani
- Laboratory of Physical Chemistry of the Solid State, Department of Chemical, University of Sfax, Sfax 3000, Tunisia;
- CINTECX, Department of Chemical Engineering, University of Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain
| | - Maria Ángeles Sanromán
- CINTECX, Department of Chemical Engineering, University of Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain
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4
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Elshahawy MF, Ahmed NA, Gad YH, Ali AEH. Efficient photocatalytic remediation of lerui acid brilliant blue dye using radiation- prepared carboxymethyl cellulose/acrylic acid hydrogel supported by ZnO@Ag. Int J Biol Macromol 2024; 262:129946. [PMID: 38340936 DOI: 10.1016/j.ijbiomac.2024.129946] [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: 11/17/2023] [Revised: 01/29/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024]
Abstract
Organic dye pollution from textiles and other industries presents a substantial risk to people and aquatic life. The use of photocatalysis to decolorize water using the strength of UV light is one of the most important remediation techniques. In the present study, a novel nanocomposites hydrogel including carboxymethyl cellulose (CMC), acrylic acid (AAc), Zinc oxide (ZnO), and silver (Ag) nanoparticles was produced using an eco-friendly γ-irradiation technique for photocatalytic decolorization applications. ZnO and Ag nanoparticles were distributed in the CMC/AAc hydrogel matrix without significant aggregation. SEM, XRD, EDX, TEM, and FTIR analyses were used to assess the physicochemical characteristics of the nanocomposite samples. Carboxymethyl cellulose/acrylic acid/Zinc oxide doped silver (CMC/PAAc/ZnO@Ag) nanocomposite hydrogels were developed and utilized in the photocatalytic decolorization of the lerui acid brilliant blue dye (LABB) when exposed to ultraviolet (UV) radiation. UV- Vis spectrophotometry was utilized to analyze the optical properties of the produced nanostructure. Regarding the decolorization of the LABB, the impacts of operational variables were investigated. The optimum conditions for decolorization (93 %) were an initial concentration of 50 mg/L, pH = 4, catalyst dosage of 50 g/L, and exposure time of 90 min. The results illustrated that the LABB acidic dye from wastewater was remarkably decolored.
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Affiliation(s)
- Mai F Elshahawy
- Radiation Research of Polymer Chemistry Department, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Nehad A Ahmed
- Radiation Research of Polymer Chemistry Department, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Yasser H Gad
- Radiation Research of Polymer Chemistry Department, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt.
| | - Amr El-Hag Ali
- Radiation Research of Polymer Chemistry Department, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
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5
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Jiang R, Zhu HY, Zang X, Fu YQ, Jiang ST, Li JB, Wang Q. A review on chitosan/metal oxide nanocomposites for applications in environmental remediation. Int J Biol Macromol 2024; 254:127887. [PMID: 37935288 DOI: 10.1016/j.ijbiomac.2023.127887] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 10/28/2023] [Accepted: 11/02/2023] [Indexed: 11/09/2023]
Abstract
A cleaner and safer environment is one of the most important requirements in the future. It has become increasingly urgent and important to fabricate novel environmentally-friendly materials to remove various hazardous pollutants. Compared with traditional materials, chitosan is a more environmentally friendly material due to its abundance, biocompatibility, biodegradability, film-forming ability and hydrophilicity. As an abundant of -NH2 and -OH groups on chitosan molecular chain could chelate with all kinds of metal ions efficiently, chitosan-based materials hold great potential as a versatile supporting matrix for metal oxide nanomaterials (MONMs) (TiO2, ZnO, SnO2, Fe3O4, etc.). Recently, many chitosan/metal oxide nanomaterials (CS/MONMs) have been reported as adsorbents, photocatalysts, heterogeneous Fenton-like agents, and sensors for potential and practical applications in environmental remediation and monitoring. This review analyzed and summarized the recent advances in CS/MONMs composites, which will provide plentiful and meaningful information on the preparation and application of CS/MONMs composites for wastewater treatment and help researchers to better understand the potential of CS/MONMs composites for environmental remediation and monitoring. In addition, the challenges of CS/MONM have been proposed.
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Affiliation(s)
- Ru Jiang
- Institute of Environmental Engineering Technology, Taizhou University, Taizhou, Zhejiang 318000, PR China; Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, Zhejiang 318000, PR China; Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Hua-Yue Zhu
- Institute of Environmental Engineering Technology, Taizhou University, Taizhou, Zhejiang 318000, PR China; Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, Zhejiang 318000, PR China; Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou, Zhejiang 318000, PR China.
| | - Xiao Zang
- Institute of Environmental Engineering Technology, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Yong-Qian Fu
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, Zhejiang 318000, PR China; Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Sheng-Tao Jiang
- Institute of Environmental Engineering Technology, Taizhou University, Taizhou, Zhejiang 318000, PR China; Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Jian-Bing Li
- Environmental Engineering Program, University of Northern British Columbia, Prince George, British Columbia V2N 4Z9, Canada
| | - Qi Wang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang 310018, PR China.
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6
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Mahmoud ME, Ibrahim GAA. Cr(VI) and doxorubicin adsorptive capture by a novel bionanocomposite of Ti-MOF@TiO 2 incorporated with watermelon biochar and chitosan hydrogel. Int J Biol Macromol 2023; 253:126489. [PMID: 37625740 DOI: 10.1016/j.ijbiomac.2023.126489] [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: 07/17/2023] [Revised: 08/17/2023] [Accepted: 08/22/2023] [Indexed: 08/27/2023]
Abstract
Biodegradable polymers, biochars and metal organic frameworks (MOFs) have manifested as top prospects for elimination of harmful pollutants. In the current study, Ti-MOF was synthesized and decorated with TiO2 nanoparticles, then embedded into watermelon peel biochar and functionalized with chitosan hydrogel to produce Ti-MOF@TiO2@WMPB@CTH. Various instruments were employed to assure the effective production of the bionanocomposite. The HR-TEM and SEM studies referred to excellent surface porosity and homogeneity of Ti-MOF@TiO2@WMPB@CTH bionanocomposite, with 51.02-74.23 nm. Based on the BET analysis, the mesoporous structure has a significant surface area of 366.04 m2 g-1 and a considerable total pore volume of 11.38 × 10-2 cm3 g-1, with a mean pore size of 12.434 nm. Removal of doxorubicin (DOX) and hexavalent chromium (Cr(VI)) was examined under various experimentations. Pseudo-second order kinetic models in addition to Langmuir isotherm offered the best fitting. Thermodynamic experiments of the two contaminants demonstrated spontaneous and endothermic interactions. After five subsequent adsorption and desorption cycles, Ti-MOF@TiO2@WMPB@CTH bionanocomposite demonstrated an exceptional recyclability for the elimination of DOX and Cr(VI) ions, reaching 97.96 % and 95.28 %, respectively. Finally, the newly designed Ti-MOF@TiO2@WMPB@CTH bionanocomposite demonstrated a high removing efficiency of Cr(VI) ions and DOX from samples of real water.
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Affiliation(s)
- Mohamed E Mahmoud
- Faculty of Sciences, Chemistry Department, Alexandria University, Moharem Bey, Alexandria, Egypt.
| | - Ghada A A Ibrahim
- Faculty of Education, Physics and Chemistry Department, Alexandria University, Alexandria, Egypt
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7
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Ganeshbabu M, Priya JS, Manoj GM, Puneeth NPN, Shobana C, Shankar H, Selvan RK. Photocatalytic degradation of fluoroquinolone antibiotics using chitosan biopolymer functionalized copper oxide nanoparticles prepared by facile sonochemical method. Int J Biol Macromol 2023; 253:127027. [PMID: 37751823 DOI: 10.1016/j.ijbiomac.2023.127027] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 08/31/2023] [Accepted: 09/20/2023] [Indexed: 09/28/2023]
Abstract
Photocatalytic degradation is an excellent method for removing pharmaceutical residues due to their simplicity, ecological benignity, high efficiency, and exceptional stability. Herein, we demonstrate the sonochemically synthesised chitosan biopolymer functionalized copper oxide nanoparticles as an efficient photocatalyst for the degradation of fluoroquinolone-based antibiotics. The X-ray diffraction Rietveld refinement revealed the formation of single-phase copper oxide (CuO) with a monoclinic structure. The presence of biopolymer functionalization was corroborated by Fourier Transform Infrared spectroscopy by observing the -NH2 and -OH functional groups. The high-resolution transmission electron microscopic images inferred that Chitosan functionalized copper oxide (C-CuO) particles are nano-sized with a smooth texture and aggregation-free particles. The strong absorbance and the broad photoluminescence emission in the ultraviolet-visible region confirm the suitability of CuO and C-CuO nanoparticles for photocatalytic applications. The catalytic activity was studied against fluoroquinolone-based antibiotics such as ciprofloxacin and norfloxacin under direct sunlight illumination. Interestingly, the C-CuO catalyst demonstrated 71.07 % (@140 min.) and 71.9 % (@60 min.) of degradation for ciprofloxacin and norfloxacin, respectively. The obtained photocatalytic activity of the prepared CuO and C-CuO catalysts was superior to the CuO particles prepared by the coprecipitation method (CC-CuO).
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Affiliation(s)
- M Ganeshbabu
- Energy Storage and Conversion Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - J Shiva Priya
- Energy Storage and Conversion Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - G Murali Manoj
- Department of Physics, KPR Institute of Engineering and Technology, Coimbatore 641407, India
| | - N Prasanna Naga Puneeth
- Energy Storage and Conversion Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - C Shobana
- Department of Zoology, Kongunadu Arts and Science College, G.N. Mills, Coimbatore 641 029, India
| | - H Shankar
- Department of Physics, KPR Institute of Engineering and Technology, Coimbatore 641407, India.
| | - R Kalai Selvan
- Energy Storage and Conversion Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore 641046, Tamil Nadu, India.
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8
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Yang X, Shi F, Su X, Cavaco-Paulo A, Wang H, Su J. In-situ encapsulation and construction of Lac@HOFs/hydrogel composite for enhancing laccase stability and azo dyes decolorization efficiency. Carbohydr Polym 2023; 320:121157. [PMID: 37659832 DOI: 10.1016/j.carbpol.2023.121157] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 06/21/2023] [Accepted: 06/26/2023] [Indexed: 09/04/2023]
Abstract
Enzymes with high catalytic activity and stability have been used for the sustainable development of green chemical applications, such as water remediation. Immobilized laccase can be used to construct a synergistic system for adsorption and degradation, which has great potential for water remediation. Herein, a hydrogen-bonded organic framework was installed onto laccase in-situ to form a net-carboxylate-arranged defective cage, which enhanced its catalytic stability. Thereafter, the CMC/PVA/Lac@HOF-101 hydrogel was fabricated by freeze-thaw cycles using sodium carboxymethylcellulose and polyvinyl alcohol as carriers and copper (II) as a cross-linker. Notably, the MOFs/hydrogel as a protective carrier of laccase maintain long-term recyclability and catalytic stability. After the fifth catalytic cycle, approximately 66.7 % activity of the CP-Lac@HOF-101 was retained. When both free laccase and CP-Lac@HOF-101 were used for decolorization of Acid Orange 7 (AO), the removal rates were 10.9 % and 82.5 % after 5 h, respectively. Furthermore, even in the presence of metal cations, almost 60.0 % of the AO removal efficiency was achieved. The relationship between the structure of the azo dyes and decolorization efficiency of the synergistic system was further investigated. This study offers a method for constructing enzyme@HOF-based composite hydrogels and provides a promising water remediation strategy.
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Affiliation(s)
- Xue Yang
- Jiangsu Engineering Technology Research Centre of Functional Textiles, Jiangnan University, Wuxi 214122, China
| | - Fei Shi
- Jiangsu Engineering Technology Research Centre of Functional Textiles, Jiangnan University, Wuxi 214122, China
| | - Xiaolei Su
- Jiangsu Engineering Technology Research Centre of Functional Textiles, Jiangnan University, Wuxi 214122, China
| | - Artur Cavaco-Paulo
- Jiangsu Engineering Technology Research Centre of Functional Textiles, Jiangnan University, Wuxi 214122, China; Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Hongbo Wang
- Jiangsu Engineering Technology Research Centre of Functional Textiles, Jiangnan University, Wuxi 214122, China.
| | - Jing Su
- Jiangsu Engineering Technology Research Centre of Functional Textiles, Jiangnan University, Wuxi 214122, China.
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Luo M, Qin L, Tao J, Gao X, Zhang T, Kang SZ, Li X. Selective surface enhanced Raman detection and effective photocatalytic degradation of sulfonamides antibiotic based on a flexible three-dimensional chitosan/carbon nitride/silver substrate. JOURNAL OF HAZARDOUS MATERIALS 2023; 459:132131. [PMID: 37536157 DOI: 10.1016/j.jhazmat.2023.132131] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/25/2023] [Accepted: 07/21/2023] [Indexed: 08/05/2023]
Abstract
The prevalence of sulfonamide residues in aquatic environments poses serious environmental risks, and the sensitive detection and effective degradation of sulfonamides have attracted widespread attention. Here, the environmentally friendly chitosan (CS)/carbon nitride (CN) with three-dimensional porous structure is fabricated by freeze-drying method, and subsequently a new bifunctional flexible substrate (CS/CN/Ag) is prepared by anchoring of small sized AgNPs (6 ∼ 12 nm) on CS/CN. Importantly, the CS/CN/Ag substrate shows high adsorption capacity (∼ 83.06%) for sulfamethoxazole (SMX) solution within 20 mins and the limit of detection can be as low as 7.46 × 10-9 mol·L-1 with an enhancement factor of 3.3 × 105. Also, the CS/CN/Ag substrate displays highly selective for surface-enhanced Raman spectroscopy (SERS) detection of sulfonamides and also shows excellent SERS response for SMX in hospital wastewater samples. In addition, the photocatalytic degradation efficiency of SMX could reach as high as 99.22% within 20 mins of irradiation and the CS/CN/Ag still maintains outstanding photocatalytic performance after six cycles. Moreover, the Ag content in the CS/CN/Ag substrate is only 2.35%, and also the CS/CN/Ag exhibits good uniformity, repeatability, recyclability and stability. Therefore, this flexible and cost-effectively substrate of CS/CN/Ag shows great potential for the simultaneous SERS detection and photocatalytic degradation of pollutants in actual wastewater samples.
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Affiliation(s)
- Man Luo
- School of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Lixia Qin
- School of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China.
| | - Jianwei Tao
- School of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Xue Gao
- School of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Taiyang Zhang
- School of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Shi-Zhao Kang
- School of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Xiangqing Li
- School of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China.
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10
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Xue Y, Lu Y, Feng K, Zhang C, Feng X, Zhao Y, Chen L. Preparation of the self-accelerating photocatalytic self-cleaning carboxymethyl cellulose sodium-based hydrogel for removing cationic dyes. Int J Biol Macromol 2023; 250:125891. [PMID: 37473895 DOI: 10.1016/j.ijbiomac.2023.125891] [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: 05/31/2023] [Revised: 07/09/2023] [Accepted: 07/17/2023] [Indexed: 07/22/2023]
Abstract
Hydrogels loaded with photocatalysts have shown great potential in effectively degrading dye wastewater. In this work, carboxymethyl cellulose sodium-based hydrogels loaded with nitrogen-doped graphene oxide-zinc oxide-zinc peroxide (NGO-ZnO-ZnO2) were synthesized using hydrothermal reaction and in-situ synthesis method. NGO acts as an electron mediator, suppressing the recombination of photoinduced electrons and holes. ZnO2 decomposes to generate hydrogen peroxide (H2O2), promoting a self-enhanced photocatalytic reaction. Carboxymethyl cellulose sodium (CMC) acts as a dispersant, improving the uniformity and stability of NGO-ZnO-ZnO2 within the hydrogel. The results demonstrate that NGO-ZnO-ZnO2 exhibits high photocatalytic degradation efficiency towards methyl orange (MO) (10 mg/L) and rhodamine B (RhB) (50 mg/L), with degradation rates of 99.99 % (200 min) and 99.26 % (160 min), respectively. The carboxymethyl cellulose sodium-based hydrogel achieves a photocatalytic degradation rate of 95.85 % (220 min) for RhB (10 mg/L). After 5 cycles of repeated photocatalytic tests, the degradation efficiency of the hydrogel towards RhB reaches 80.81 %. This work provides a low-cost and convenient method for constructing novel hydrogel carriers with high photocatalytic stability and efficiency.
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Affiliation(s)
- Yingying Xue
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China; National Center for International Joint Research on Separation Membranes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Yujia Lu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China; National Center for International Joint Research on Separation Membranes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Kezhuo Feng
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China; National Center for International Joint Research on Separation Membranes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Chunyang Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China; National Center for International Joint Research on Separation Membranes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Xia Feng
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China; National Center for International Joint Research on Separation Membranes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Yiping Zhao
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China; National Center for International Joint Research on Separation Membranes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China.
| | - Li Chen
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China; National Center for International Joint Research on Separation Membranes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
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11
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Fang Z, Xu H, Xu Q, Meng L, Lu N, Li R, Müller-Buschbaum P, Zhong Q. High Efficiency of Formaldehyde Removal and Anti-bacterial Capability Realized by a Multi-Scale Micro-Nano Channel Structure in Hybrid Hydrogel Coating Cross-Linked on Microfiber-Based Polyurethane. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37429826 DOI: 10.1021/acsami.3c07210] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/12/2023]
Abstract
Inspired by the transpiration in the tree stem having a vertical and porous channel structure, high efficiency of formaldehyde removal is realized by the multi-scale micro-nano channel structure in a hybrid P(AAm/DA)-Ag/MgO hydrogel coating cross-linked on microfiber-based polyurethane. The present multi-scale channel structure is formed by a joint effect of directional freezing and redox polymerization as well as nanoparticles-induced porosity. Due to the large number of vertically aligned channels of micrometer size and an embedded porous structure of nanometer size, the specific surface area is significantly increased. Therefore, formaldehyde from solution can be rapidly adsorbed by the amine group in the hydrogels and efficiently degraded by the Ag/MgO nanoparticles. By only immersing in formaldehyde solution (0.2 mg mL-1) for 12 h, 83.8% formaldehyde is removed by the hybrid hydrogels with a multi-scale channel structure, which is 60.8% faster than that observed in hydrogels without any channel structure. After cross-linking the hybrid hydrogels with a multi-scale channel structure to microfiber-based polyurethane and exposing to the formaldehyde vapor atmosphere, 79.2% formaldehyde is removed in 12 h, which is again 11.2% higher than that observed in hydrogels without any channel structure. Unlike the traditional approaches to remove formaldehyde by the light catalyst, no external conditions are required in our present hybrid hydrogel coating, which is very suitable for indoor use. In addition, due to the formation of free radicals by the Ag/MgO nanoparticles, the cross-linked hybrid hydrogel coating on polyurethane synthetic leather also shows good anti-bacterial capability. 99.99% of Staphylococcus aureus can be killed on the surface. Based on the good ability to remove formaldehyde and to kill bacteria, the obtained microfiber-based polyurethane cross-linked with a hybrid hydrogel coating containing a multi-scale channel structure can be used in a broad field of applications, such as furniture and car interior parts, to simultaneously solve the indoor air pollution and hygiene problems.
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Affiliation(s)
- Zheng Fang
- Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, 928 Second Avenue, 310018 Hangzhou, China
| | - Huawei Xu
- Hexin Kuraray Micro Fiber Leather (Jiaxing) Co. Ltd., 777 Pingnan Road, 314003 Jiaxing, China
| | - Qiang Xu
- Hexin Kuraray Micro Fiber Leather (Jiaxing) Co. Ltd., 777 Pingnan Road, 314003 Jiaxing, China
| | - LiuBang Meng
- Hexin Kuraray Micro Fiber Leather (Jiaxing) Co. Ltd., 777 Pingnan Road, 314003 Jiaxing, China
| | - Nan Lu
- National Engineering Lab for Textile Fiber Materials and Processing Technology, School of Materials Science & Engineering, Zhejiang Sci-Tech University, 310018 Hangzhou, China
| | - Renhong Li
- National Engineering Lab for Textile Fiber Materials and Processing Technology, School of Materials Science & Engineering, Zhejiang Sci-Tech University, 310018 Hangzhou, China
| | - Peter Müller-Buschbaum
- TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, Technical University of Munich, James-Franck-Street 1, 85748 Garching, Germany
- Heinz Maier-Leibnitz Zentrum (MLZ), Technical University of Munich, Lichtenbergstr. 1, 85748 Garching, Germany
| | - Qi Zhong
- Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, 928 Second Avenue, 310018 Hangzhou, China
- TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, Technical University of Munich, James-Franck-Street 1, 85748 Garching, Germany
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12
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Xia C, Li X, Wu Y, Suharti S, Unpaprom Y, Pugazhendhi A. A review on pollutants remediation competence of nanocomposites on contaminated water. ENVIRONMENTAL RESEARCH 2023; 222:115318. [PMID: 36693465 DOI: 10.1016/j.envres.2023.115318] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/08/2023] [Accepted: 01/16/2023] [Indexed: 06/17/2023]
Abstract
Clean freshwater has been required for drinking, sanitation, agricultural activities, and industry, as well as for the development and maintenance of the eco - systems on which all livelihoods rely. Water contamination is currently a significant concern for researchers all over the world; hence it is essential that somehow this issue is resolved as soon as possible. It is now recognised as one of the most important research areas in the world. Current wastewater treatment techniques degrade a wide range of wastewaters efficiently; however, such methods have some limitations. Recently, nanotechnology has emerged as a wonderful solution, and researchers are conducting research in this water remediation field with a variety of potential applications. The pollutants remediation capability of nanocomposites as adsorbents, photocatalysts, magnetic separation, and so on for contaminant removal from contaminated water has been examined in this study. This study has spotlighted the most significant nanocomposites invention reported to date for contaminated and effluent remediation, as well as a research gap as well as possible future perspectives.
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Affiliation(s)
- Changlei Xia
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China
| | - Xiang Li
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China
| | - Yingji Wu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China
| | - Suharti Suharti
- Department of Chemistry, State University of Malang, Malang, East Java, Indonesia
| | - Yuwalee Unpaprom
- Program in Biotechnology, Maejo University, Chiang Mai, Thailand
| | - Arivalagan Pugazhendhi
- School of Engineering, Lebanese American University, Byblos, Lebanon; University Centre for Research & Development, Department of Civil Engineering, Chandigarh University, Mohali, India.
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13
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Yu F, Chen H, Tian X, Zhou Y, Cui J, Li C, Zhang J, Tang X, Liu Y. Studies on the preparation and optical properties of ZnO hollow nanosphere/ZnCo2S4 nanoparticle composite photocatalyst. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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14
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Advances in the role of natural gums-based hydrogels in water purification, desalination and atmospheric-water harvesting. Int J Biol Macromol 2022; 222:2888-2921. [DOI: 10.1016/j.ijbiomac.2022.10.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 09/01/2022] [Accepted: 10/08/2022] [Indexed: 11/05/2022]
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15
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Enhance the removal and immobilization of Cd(II) by the synthesis in situ of dithiocarbamate-geopolymer microsphere composite. J Colloid Interface Sci 2022; 622:562-576. [DOI: 10.1016/j.jcis.2022.04.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/05/2022] [Accepted: 04/10/2022] [Indexed: 11/23/2022]
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16
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K. Algethami F, Saidi I, Ben Jannet H, Khairy M, Abdulkhair BY, Al-Ghamdi YO, Abdelhamid HN. Chitosan-CdS Quantum Dots Biohybrid for Highly Selective Interaction with Copper(II) Ions. ACS OMEGA 2022; 7:21014-21024. [PMID: 35935289 PMCID: PMC9347964 DOI: 10.1021/acsomega.2c01793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 05/17/2022] [Indexed: 05/02/2023]
Abstract
Cadmium sulfide (CdS) quantum dots (QDs) were homogeneously embedded into chitosan (CTS), denoted as CdS@CTS, via an in situ hydrothermal method. The intact structure of the synthesized materials was preserved using freeze-drying. The materials were characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy, transmission electron microscopy, high-resolution TEM, scanning TEM, dispersive energy X-ray (EDX) for elemental analysis and mapping, Fourier transform infrared spectroscopy, nitrogen adsorption-desorption isotherms, thermogravimetric analysis, UV-vis spectroscopy, and diffuse reflectance spectroscopy (DRS). The synthesis procedure offered CdS QDs of 1-7 nm (average particle size of 3.2 nm). The functional groups of CTS modulate the in situ growth of CdS QDs and prevent the agglomeration of CdS QDs, offering homogenous distribution inside CTS. CdS@CTS QDs can also be used for naked-eye detection of heavy metals with high selectivity toward copper (Cu2+) ions. The mechanism of interactions between Cu2+ ions and CdS@CTS QDs were further studied.
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Affiliation(s)
- Faisal K. Algethami
- Department
of Chemistry, College of Science, Imam Mohammad
Ibn Saud Islamic University (IMSIU), Riyadh 11432, Saudi Arabia
| | - Ilyes Saidi
- Laboratory
of Heterocyclic Chemistry, Natural Products and Reactivity (LR11ES39),
Medicinal Chemistry and Natural Products Team, Faculty of Science
of Monastir, University of Monastir, Avenue
of Environment, Monastir 5019, Tunisia
| | - Hichem Ben Jannet
- Laboratory
of Heterocyclic Chemistry, Natural Products and Reactivity (LR11ES39),
Medicinal Chemistry and Natural Products Team, Faculty of Science
of Monastir, University of Monastir, Avenue
of Environment, Monastir 5019, Tunisia
| | - M. Khairy
- Department
of Chemistry, College of Science, Imam Mohammad
Ibn Saud Islamic University (IMSIU), Riyadh 11432, Saudi Arabia
| | - Babiker Y. Abdulkhair
- Department
of Chemistry, College of Science, Imam Mohammad
Ibn Saud Islamic University (IMSIU), Riyadh 11432, Saudi Arabia
| | - Youssef O. Al-Ghamdi
- Department
of Chemistry, College of Science Al-zulfi, Majmaah University, Al-Majmaah 11952, Saudi Arabia
| | - Hani Nasser Abdelhamid
- Department
of Chemistry, Advanced Multifunctional Materials Laboratory, Faculty
of Science, Assiut University, Assiut 71575, Egypt
- Nanotechnology
Research Centre (NTRC), The British University
in Egypt (BUE), Suez
Desert Road, El-Sherouk City, Cairo, 11837, Egypt
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17
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Advanced Polymeric Nanocomposites for Water Treatment Applications: A Holistic Perspective. Polymers (Basel) 2022; 14:polym14122462. [PMID: 35746038 PMCID: PMC9231113 DOI: 10.3390/polym14122462] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/14/2022] [Accepted: 06/14/2022] [Indexed: 12/15/2022] Open
Abstract
Water pollution remains one of the greatest challenges in the modern era, and water treatment strategies have continually been improved to meet the increasing demand for safe water. In the last few decades, tremendous research has been carried out toward developing selective and efficient polymeric adsorbents and membranes. However, developing non-toxic, biocompatible, cost-effective, and efficient polymeric nanocomposites is still being explored. In polymer nanocomposites, nanofillers and/or nanoparticles are dispersed in polymeric matrices such as dendrimer, cellulose, resins, etc., to improve their mechanical, thermophysical, and physicochemical properties. Several techniques can be used to develop polymer nanocomposites, and the most prevalent methods include mixing, melt-mixing, in-situ polymerization, electrospinning, and selective laser sintering techniques. Emerging technologies for polymer nanocomposite development include selective laser sintering and microwave-assisted techniques, proffering solutions to aggregation challenges and other morphological defects. Available and emerging techniques aim to produce efficient, durable, and cost-effective polymer nanocomposites with uniform dispersion and minimal defects. Polymer nanocomposites are utilized as filtering membranes and adsorbents to remove chemical contaminants from aqueous media. This study covers the synthesis and usage of various polymeric nanocomposites in water treatment, as well as the major criteria that influence their performance, and highlights challenges and considerations for future research.
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18
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Gupta B, Gupta AK. Photocatalytic performance of 3D engineered chitosan hydrogels embedded with sulfur-doped C 3N 4/ZnO nanoparticles for Ciprofloxacin removal: Degradation and mechanistic pathways. Int J Biol Macromol 2022; 198:87-100. [PMID: 34968537 DOI: 10.1016/j.ijbiomac.2021.12.120] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/28/2021] [Accepted: 12/19/2021] [Indexed: 12/17/2022]
Abstract
Ciprofloxacin, a biotoxic micropollutant, is ubiquitously found in the water environment, which is a global concern. This study developed polymeric S-C3N4/ZnO-Chitosan (indexed as SCZ-CH) hydrogels for degrading Ciprofloxacin. The SCZ-CH hydrogels provided the Ciprofloxacin degradation efficiencies of ~93% and ~69% in UV and visible lights, respectively, at optimum conditions (SCZ-CH hydrogels with 2 g/L SCZ, 20 mg/L initial concentration, pH 5, and room temperature). In addition, immobilized SCZ-CH hydrogels structures enable easy separation of the SCZ catalyst from water. The spectroscopic and microscopic analyses of SCZ-CH hydrogels show multifaceted properties, like high oxygen concentrations, crystallinity, stacked structure, high roughness, and improved bandgap energy, which are responsible for the enhanced photocatalytic activity. The effects of water matrix and experimental conditions on Ciprofloxacin degradation were also studied, which suggested that the catalyst dose and solution pH have significant effects on photocatalytic activity. SCZ-CH hydrogels have shown good mineralization efficiency (~98%) and reusability (up to 10 cycles) for Ciprofloxacin removal. Superoxide radicals played an essential role in the degradation of Ciprofloxacin. The Ciprofloxacin molecules get degraded by driving radicals through oxidation, defluorination, substitution, and breaking of the rings. The proposed SCZ-CH hydrogels can be effectively used at a large scale to treat micropollutants.
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Affiliation(s)
- Bramha Gupta
- School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
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19
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Bio and photoactive starch/MnO 2 and starch/MnO 2/cotton hydrogel nanocomposite. Int J Biol Macromol 2021; 193:681-692. [PMID: 34717975 DOI: 10.1016/j.ijbiomac.2021.10.168] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 01/02/2023]
Abstract
Here a starch and starch hydrogel nanocomposite and superabsorbent cotton fabric was fabricated and characterized. The optimized starch hydrogel nanocomposite was synthesized by using 0.008 M potassium permanganate, 0.7 g starch and 0.6 M sodium hydroxide at 50-55 °C. potassium permanganate as a strong and inexpensive oxidizing agent were used to potentially nano cross-link the starch molecular chains and graft the starch to cellulose molecular chains along with synthesizing manganese dioxide nanoparticles (MnO2) to further obtain antibacterial, antifungal and photocatalytic properties. The stability of products in water and the water absorption indicated the highest water content of 800% for the optimum sample. The same materials and conditions were also applied to the cotton fabric to produce a superabsorbent fabric. The simple one-step synthesis procedure, in-situ production of nanoparticles, cost-effectiveness and having desired features including photocatalytic, antibacterial properties of 93% against S. aureus, and biocompatibility make the starch hydrogel nanocomposite a suitable candidate for various applications such as agriculture, medical, textile engineering and water treatment.
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20
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ALSamman MT, Sánchez J. Recent advances on hydrogels based on chitosan and alginate for the adsorption of dyes and metal ions from water. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103455] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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21
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Madhan G, Begam AA, Varsha LV, Ranjithkumar R, Bharathi D. Facile synthesis and characterization of chitosan/zinc oxide nanocomposite for enhanced antibacterial and photocatalytic activity. Int J Biol Macromol 2021; 190:259-269. [PMID: 34419540 DOI: 10.1016/j.ijbiomac.2021.08.100] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 08/10/2021] [Accepted: 08/12/2021] [Indexed: 12/26/2022]
Abstract
In this report, chitosan/zinc oxide (CS/ZnO) nanocomposite was synthesized using Sida acuta and assessed their antibacterial and photocatalytic properties. The formation of CS/ZnO nanocomposite was preliminary confirmed by colour change and UV-visible spectroscopy. The crystalline peaks related to CS and ZnO in CS/ZnO nanocomposite were demonstrated by XRD. Morphological analysis through FE-SEM and TEM showed a rod like appearance for ZnO NPs and agglomerated grains with rod shaped morphology was observed for the CS/ZnO nanocomposite. The peaks around 400-800 cm-1 in the IR spectrum of nanocomposite indicated the vibrations of metal-oxygen (ZnO), whereas bands at 1659 cm-1 and 1546 cm-1 indicated the presence of amine groups, which confirms the CS in the synthesized CS/ZnO nanocomposite. The CS/ZnO nanocomposite exhibited remarkable growth inhibition activity against B. subtilis and E. coli with 22 ± 0.3 and 16.5 ± 0.5 mm zone of inhibitions. In addition, CS/ZnO nanocomposite treated cotton fabrics also exhibited antibacterial activity against B. subtilis and E. coli. Furthermore, the ZnO NPs and nanocomposite showed time depended photodegradation activity and revealed 76% and 91% decomposition of CR under sunlight irradiation. In conclusion, our study revealed that the functionalization of biopolymer CS to the inorganic ZnO enhances the bio and catalytic properties.
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Affiliation(s)
- Gunasekaran Madhan
- Department of Biotechnology, Hindusthan College of Arts and Science, Coimbatore, Tamilnadu 6410028, India
| | - A Ayisha Begam
- Department of Biotechnology, Hindusthan College of Arts and Science, Coimbatore, Tamilnadu 6410028, India
| | - L Vetri Varsha
- Department of Biotechnology, Hindusthan College of Arts and Science, Coimbatore, Tamilnadu 6410028, India
| | | | - Devaraj Bharathi
- Department of Biotechnology, Hindusthan College of Arts and Science, Coimbatore, Tamilnadu 6410028, India.
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22
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Liu C, Li R, Liu W, Shen G, Chen D. Chitosan-Assisted Fabrication of a Network C@V 2O 5 Cathode for High-Performance Zn-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2021; 13:37194-37200. [PMID: 34314171 DOI: 10.1021/acsami.1c09951] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Vanadium oxide-based aqueous zinc-ion batteries exhibit promising potential due to their low cost and safety profiles. However, fabricating cathodes with outstanding electrochemical performance for Zn-ion batteries is still a challenge. Herein, network C@V2O5 materials were prepared using a mild chitosan-assisted hydrothermal process. Coin-type cells, using network C@V2O5 as a cathode, zinc film as an anode, and Zn(CF3SO3)2 as an electrolyte, were also assembled, and the as-synthesized cathode delivered a high specific capacity of 361 mA h g-1 at 0.5 A g-1 and excellent cyclic stability. Specifically, after 2000 cycles, the capacity still remained about 71% of the initial value at 0.5 A g-1. Moreover, ex situ X-ray diffraction (XRD) characterizations confirmed that Zn-ion storage in the cathode was achieved through the reversible intercalation/extraction of Zn2+ during the charge/discharge process. Therefore, the network C@V2O5 cathode demonstrated potential applications for zinc-ion batteries.
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Affiliation(s)
- Chunxue Liu
- College of Physics and Mathematics and Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, Beijing 100083, China
- State Key Laboratory for Superlattice and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
| | - Rui Li
- College of Physics and Mathematics and Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, Beijing 100083, China
- State Key Laboratory for Superlattice and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
| | - Weijia Liu
- College of Physics and Mathematics and Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, Beijing 100083, China
- State Key Laboratory for Superlattice and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
| | - Guozhen Shen
- State Key Laboratory for Superlattice and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
| | - Di Chen
- College of Physics and Mathematics and Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, Beijing 100083, China
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Abdullah U, Ali M, Pervaiz E. An Inclusive Review on Recent Advancements of Cadmium Sulfide Nanostructures and its Hybrids for Photocatalytic and Electrocatalytic Applications. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111575] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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