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Farhadi H, Mousavi-Kamazani M, Keramati N, Alamdari S. One-step hydrothermal synthesis of CeVO 4/bentonite nanocomposite as a dual-functional photocatalytic adsorbent for the removal of methylene blue from aqueous solutions. Sci Rep 2024; 14:14824. [PMID: 38937600 PMCID: PMC11211490 DOI: 10.1038/s41598-024-65793-9] [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: 04/18/2024] [Accepted: 06/24/2024] [Indexed: 06/29/2024] Open
Abstract
Cerium vanadate/modified bentonite (CeVO4/mbt) nanocomposite with different composition percentages was synthesized through a simple one-step hydrothermal method at 180 ℃, and then its photocatalytic activity was evaluated by decolorizing methylene blue (MB) in an aqueous solution under light exposure. In order to increase the surface area as an important parameter in photocatalytic processes, bentonite was modified by ball mill method. The structural and optical properties of the synthesized composites were determined by XRD, FT-IR, DRS, FESEM, EDS, and BET measurements. XRD and EDS results confirmed the successful synthesis of pure CeVO4. FESEM images and EDS mapping showed a proper distribution of rice-like CeVO4 nanoparticles on bentonite. The removal efficiency of MB with only 0.1 g of CeVO4/mbt nanocomposite in 15 min was about 99%, which is significant compared to neat bentonite and pure CeVO4 with efficiency of 30% and 57%. The mentioned nanocomposite followed the first-order kinetics, had a reaction rate constant equal to 0.1483 min-1, and showed acceptable stability in five consecutive cycles.
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Affiliation(s)
- Hajar Farhadi
- Department of Nanotechnology, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran
| | - Mehdi Mousavi-Kamazani
- Department of Nanotechnology, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran.
| | - Narjes Keramati
- Department of Nanotechnology, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran.
| | - Sanaz Alamdari
- Department of Nanotechnology, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran
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Hu Z, Su G, Long S, Zhang X, Zhang L, Chen Y, Zhang C, Liu G. Synthesis of X@DRHC (X=Co, Ni, Mn) catalyst from comprehensive utilization of waste rice husk and spent lithium-ion batteries for efficient peroxymonosulfate (PMS) activation. ENVIRONMENTAL RESEARCH 2024; 245:118078. [PMID: 38159665 DOI: 10.1016/j.envres.2023.118078] [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: 08/22/2023] [Revised: 12/15/2023] [Accepted: 12/27/2023] [Indexed: 01/03/2024]
Abstract
Highly efficient resource recycling and comprehensive utilization play a crucial role in achieving the goal of reducing resource wasting, environmental protection, and achieving goal of sustainable development. In this work, the two kinds waste resources of agricultural rice husk and metal ions (Co, Ni, and Mn) from spent lithium-ion batteries have been skillfully utilized to synthesize novel Fenton-like catalysts. Desiliconized rice husk carbon (DRHC) with rich pore structure and large specific surface area from rice husk has been prepared and used as scalable carrier, and dandelion-like nanoparticles cluster could be grown in situ on the surface of the carrier by using metal ions contained waste water. The designed catalysts (X@DRHC) as well as their preparation process were characterized in detail by SEM, TEM, BET, XRD and XPS, respectively. Meanwhile, their catalytic abilities were also studied by activating potassium peroxomonosulfate (PMS) to remove methylene blue (MB). The results indicate X@DRHC displays excellent degradation efficiency on MB with wide pH range and stable reusability, which is suitable for the degradation of various dyes. This work has realized the recycling and high-value utilization of waste resources from biomass and spent lithium-ion batteries, which not only creates an efficient way to dispose waste resources, but also shows high economic benefits in large-scale water treatment.
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Affiliation(s)
- Zhenyi Hu
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China.
| | - Geng Su
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China.
| | - Shujun Long
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China.
| | - Xiaoting Zhang
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China.
| | - Linkun Zhang
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China.
| | - Yilin Chen
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China.
| | - Chang Zhang
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China.
| | - Gonggang Liu
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China.
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Kumari N, Behera M, Singh R. Facile synthesis of biopolymer decorated magnetic coreshells for enhanced removal of xenobiotic azo dyes through experimental modelling. Food Chem Toxicol 2023; 171:113518. [PMID: 36436617 DOI: 10.1016/j.fct.2022.113518] [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: 07/31/2022] [Revised: 09/01/2022] [Accepted: 11/17/2022] [Indexed: 11/27/2022]
Abstract
Since contamination of xenobiotics in water bodies has become a global issue, their removal is gaining ample attention lately. In the present study, nZVI was synthesized using chitosan for removal of two such xenobitic dyes, Bromocresol green and (BCG) and Brilliant blue (BB), which have high prevalence in freshwater and wastewater matrices. nZVI functionalization prevents nanoparticle aggregation and oxidation, enhancing the removal of BCG and BB with an efficiency of 84.96% and 86.21%, respectively. XRD, FESEM, EDS, and FTIR have been employed to investigate the morphology, elemental composition, and functional groups of chitosan-modified nanoscale-zerovalent iron (CS@nZVI). RSM-CCD model was utilized to assess the combined effect of five independent variables and determine the best condition for maximum dye removal. The interactions between adsorbent dose (2-4 mg), pH (4-8), time (20-40 min), temperature (35-65 0C), and initial dye concentration (40-60 mg/L) was modeled to study the response, i.e., dye removal percentage. The reaction fitted well with Langmuir isotherm and pseudo-first-order kinetics, with a maximum qe value of 426.97 and 452.4 mg/g for BCG and BB, respectively. Thermodynamic analysis revealed the adsorption was spontaneous, and endothermic in nature. Moreover, CS@nZVI could be used up to five cycles of dye removal with remarkable potential for real water samples.
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Affiliation(s)
- Nisha Kumari
- Department of Environmental Science, School of Earth Sciences, Central University of Rajasthan, Ajmer, 305817, Rajasthan, India
| | - Monalisha Behera
- Department of Environmental Science, School of Earth Sciences, Central University of Rajasthan, Ajmer, 305817, Rajasthan, India
| | - Ritu Singh
- Department of Environmental Science, School of Earth Sciences, Central University of Rajasthan, Ajmer, 305817, Rajasthan, India.
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Sun J, Wang L, Lu S, Wang Z, Chen M, Liang W, Lin X, Lin X. Environmentally Friendly g-C 3N 4/Sepiolite Fiber for Enhanced Degradation of Dye under Visible Light. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27082464. [PMID: 35458658 PMCID: PMC9030453 DOI: 10.3390/molecules27082464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 03/29/2022] [Accepted: 04/07/2022] [Indexed: 11/16/2022]
Abstract
Herein, novel visible light active graphitic carbon nitride (g-C3N4)/sepiolite fiber (CN/SS) composites were fabricated via a facile calcination route, exploiting melamine and thiourea as precursors, and sepiolite fiber as support, for efficient degradation of organic dye methylene blue (MB). The as-prepared CN/SS composites were characterized by various characterization techniques based on structural and microstructural analyses. The effects of CN loading amount, catalyst dosage and initial concentration of dye on the removal rate of dye under visible light were systematically studied. The removal rate of MB was as high as 99.5%, 99.6% and 99.6% over the composites when the CN loading amount, catalyst dosage and initial concentration of dye were 20% (mass percent), 0.1 g, and 15 mg/L in 120 min, respectively. The active species scavenging experiments and electron paramagnetic resonance (EPR) measurement indicated that the holes (h+), hydroxyl radical (·OH) and superoxide radicals (·O2−) were the main active species. This study provides for the design of low-cost, environmentally friendly and highly efficient catalysts for the removal of organic dye.
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Affiliation(s)
- Jiayue Sun
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin 541004, China; (J.S.); (L.W.); (S.L.)
- School of Environment and Resource, Guangxi Normal University, Guilin 541004, China
| | - Lianying Wang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin 541004, China; (J.S.); (L.W.); (S.L.)
- School of Environment and Resource, Guangxi Normal University, Guilin 541004, China
| | - Simei Lu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin 541004, China; (J.S.); (L.W.); (S.L.)
- School of Environment and Resource, Guangxi Normal University, Guilin 541004, China
| | - Zhuoyuan Wang
- School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin 541004, China;
| | - Menglin Chen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin 541004, China; (J.S.); (L.W.); (S.L.)
- School of Environment and Resource, Guangxi Normal University, Guilin 541004, China
- Correspondence: (M.C.); (W.L.); (X.L.); (X.L.)
| | - Weixia Liang
- School of Medicine and Health, Guangxi Vocational & Technical Institute of Industry, Nanning 530001, China
- Correspondence: (M.C.); (W.L.); (X.L.); (X.L.)
| | - Xiu Lin
- Guangxi Key Laboratory of Spatial Information and Geomatics, Guilin 541004, China
- Hospital, Guilin University of Technology, Guilin 541004, China
- Department of Public Health, International College, Krirk University, Bangkok 10220, Thailand
- Correspondence: (M.C.); (W.L.); (X.L.); (X.L.)
| | - Xiangfeng Lin
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin 541004, China; (J.S.); (L.W.); (S.L.)
- School of Environment and Resource, Guangxi Normal University, Guilin 541004, China
- Correspondence: (M.C.); (W.L.); (X.L.); (X.L.)
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Moghazy MAEF, Taha GM. Effect of precursor chemistry on purity and characterization of CaCO 3 nanoparticles and its application for adsorption of methyl orange from aqueous solutions. J DISPER SCI TECHNOL 2022. [DOI: 10.1080/01932691.2022.2056478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Marwa Abd El-Fatah Moghazy
- Environmental Applications of Nanomaterials Lab, Chemistry Department, Faculty of Science, Aswan University, Aswan, Egypt
| | - Gharib Mahmoud Taha
- Environmental Applications of Nanomaterials Lab, Chemistry Department, Faculty of Science, Aswan University, Aswan, Egypt
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