Environmental Nanotechnology, Monitoring and Management最新文献_第8页

Disinfection of synthetic human urine by mixed metal oxide anode through photo/electrochemical oxidation 混合金属氧化物阳极通过光/电化学氧化作用对合成人尿进行消毒

Environmental Nanotechnology, Monitoring and Management Pub Date : 2024-10-18 DOI: 10.1016/j.enmm.2024.101017

Jayishnu Singla , Poulomi Chandra , Palak Bansal , Anoop Verma

{"title":"Disinfection of synthetic human urine by mixed metal oxide anode through photo/electrochemical oxidation","authors":"Jayishnu Singla , Poulomi Chandra , Palak Bansal , Anoop Verma","doi":"10.1016/j.enmm.2024.101017","DOIUrl":"10.1016/j.enmm.2024.101017","url":null,"abstract":"<div><div>This study investigates the electrooxidation treatment of synthetic urine (SU) using quaternary mixed metal oxide (d-MMO) anodes in both batch and continuous modes. We combine photocatalysis (PC) and electrooxidation (EO) to enhance pollutant degradation. The impact of treatment time, pH, Na/Cl ratio, and current density on COD removal and the specific energy consumption is examined. Optimized parameters for batch EO treatment yield a desirability value (D) of 0.941, with COD removal of 90.55 % and energy consumption of 20.851 kWh/kg of COD removed. Treatment time is reduced from 10.05 h to 6.5 h with PEC (Photoelectrocatalysis) incorporation. The stability and durability of anodes are confirmed through XRD and FE-SEM/EDS analysis, even after 500 recycling cycles. This research stands out for utilizing innovative d-MMO anodes for EO and PEC, capturing molecular hydrogen gas during scale-up trials for SU. Through this study, we are proposing for the first time, the novel composition of d-MMO (Ti/IrO<sub>2</sub>/Ta<sub>2</sub>O<sub>5</sub>/SnO<sub>2</sub>/Sb<sub>2</sub>O<sub>5</sub>) for the treatment of SU on a pilot-scale in continuous mode with solar panels, thus making the process cost effective with less energy consumption.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 101017"},"PeriodicalIF":0.0,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142529714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adsorption of ciprofloxacin on sugarcane bagasse modified with carbon nanotubes: Influence of parameters and sorption mechanism 用碳纳米管修饰的甘蔗渣对环丙沙星的吸附：参数和吸附机理的影响

Environmental Nanotechnology, Monitoring and Management Pub Date : 2024-10-16 DOI: 10.1016/j.enmm.2024.101014

Marlon Castillo , Eulalia Vanegas , Christian Cruzat , Néstor Novoa , Ramón Arrué

{"title":"Adsorption of ciprofloxacin on sugarcane bagasse modified with carbon nanotubes: Influence of parameters and sorption mechanism","authors":"Marlon Castillo , Eulalia Vanegas , Christian Cruzat , Néstor Novoa , Ramón Arrué","doi":"10.1016/j.enmm.2024.101014","DOIUrl":"10.1016/j.enmm.2024.101014","url":null,"abstract":"<div><div>The increasing occurrence of emergent pollutants in water bodies, such as ciprofloxacin (CIP), underscores the interest in the study of remediation processes. In this context, adsorption emerges as a widely utilized method, employing both economically viable biowaste and highly efficient specialized materials as adsorbents. The main objective of this research was to prepare a composite from sugarcane bagasse (SB) and carbon nanotubes to study its applicability as an adsorbent in the removal of CIP. The composite was prepared by ultrasonic dispersion of alkalinized sugarcane bagasse fibers and oxidized carbon nanotubes. The uptake of CIP was tested by a series of batch experiments with parameter variations. Surface properties were characterized by using SEM, FTIR, and XRD analysis. The composite had a pH<sub>PZC</sub> = 6.46 with a proportion of active acid sites of 61.67 % and a phenolic groups predominance. The addition of oxidized carbon nanotubes increased the sorption capacity up to 20 % compared with SB. The study revealed enhanced sorption in the slightly acidic zone at pH values close to pH<sub>PZC</sub>. Indeed, mechanisms favorable to sorption were π-π interaction and low CIP solubility. Process kinetics followed pseudo the second order and Weber and Morris models. Finally, experimental data seemed to fit the Langmuir model with a maximum adsorption capacity (q<sub>m</sub>) of 16.835 mg·g<sup>−1</sup> at 30 °C, without disregarding the Freundlich mechanism since the regression factor R<sup>2</sup> is similar for both.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 101014"},"PeriodicalIF":0.0,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142529713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bismuth chalcogenide assisted Nanomaterials: A versatile platform against harmful bacteria and toxic organic moieties 卤化铋辅助纳米材料：对抗有害细菌和有毒有机分子的多功能平台

Environmental Nanotechnology, Monitoring and Management Pub Date : 2024-09-29 DOI: 10.1016/j.enmm.2024.101010

Jyoti Rai , Mukesh Kumar Verma , Munish Sharma , Raj Kumar

{"title":"Bismuth chalcogenide assisted Nanomaterials: A versatile platform against harmful bacteria and toxic organic moieties","authors":"Jyoti Rai , Mukesh Kumar Verma , Munish Sharma , Raj Kumar","doi":"10.1016/j.enmm.2024.101010","DOIUrl":"10.1016/j.enmm.2024.101010","url":null,"abstract":"<div><div>Water pollution caused by toxic organic compounds (Dyes, agrochemicals, antibiotics, etc.) and waterborne bacteria presents significant global challenges that demand innovative solutions. Nanomaterials have emerged as a promising alternative to traditional water treatment methods due to their unique properties, such as antimicrobial and photocatalytic activities, as well as superior adsorption capabilities. Among these, bismuth chalcogenides (Bi<sub>2</sub>S<sub>3</sub>, Bi<sub>2</sub>O<sub>3</sub>, Bi<sub>2</sub>Se<sub>3</sub>) have attracted considerable interest for their low toxicity, suitable band gaps in the visible spectrum, and potent antimicrobial properties. This review examines the significant role of bismuth chalcogenide-based single and multiphase nanostructures in addressing water pollution through photocatalytic degradation, adsorption, and antimicrobial processes. Despite excellent photocatalytic activity of single phase bismuth chalcogenides nanomaterials, it also enhances visible light absorption capacity of UV active materials (TiO<sub>2</sub>, ZnO etc.) in combine state. It delves into the antimicrobial mechanisms of bismuth chalcogenides and explores their enhanced efficacy when combined with loaded drugs, natural bioactive compounds, and doped metals such as silver (Ag) and gold (Au). The review also provides an in-depth discussion on the challenges associated with synthesizing bismuth chalcogenide nanomaterials and their potential applications in water purification.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 101010"},"PeriodicalIF":0.0,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142428153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Valorization of Vaccinium corymbosum waste from the extraction of bioactive compounds: Nanoparticles synthesis and applications 从提取生物活性化合物中实现越橘废弃物的价值：纳米颗粒的合成与应用

Environmental Nanotechnology, Monitoring and Management Pub Date : 2024-09-29 DOI: 10.1016/j.enmm.2024.101011

Cristina Espinoza-Tongo , David Asmat-Campos , Heber Robles-Castillo , Noemi Raquel-Checca

{"title":"Valorization of Vaccinium corymbosum waste from the extraction of bioactive compounds: Nanoparticles synthesis and applications","authors":"Cristina Espinoza-Tongo , David Asmat-Campos , Heber Robles-Castillo , Noemi Raquel-Checca","doi":"10.1016/j.enmm.2024.101011","DOIUrl":"10.1016/j.enmm.2024.101011","url":null,"abstract":"<div><div>This study presents the biogenic synthesis of silver nanoparticles (Ag NPs), zinc oxide nanoparticles (ZnO NPs), and iron oxide nanoparticles (FeO NPs) using <em>V. corymbosum</em> extracts as a reducing agent, varying the ultrasound extraction times (t1 = 20 min, t2 = 15 min, t3 = 10 min). Ag NPs exhibited an antimicrobial efficiency of 98.2 %, being most effective with t2 due to their smaller size. ZnO NPs demonstrated the best thermal stability with t1, and FeO NPs showed optimal magnetic properties with t3. The reduction of methylene blue by ZnO and FeO NPs was significant, with ZnO-t1 and FeO-t3 standing out. The nanoparticles exhibited distinctive optical characteristics and adequate morphology, depending on the extraction time. This work highlights the feasibility of using natural extracts to synthesize nanoparticles, promoting sustainable methods in nanoscience and nanotechnology. Future research should focus on the functionalization of NPs to expand their applications.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 101011"},"PeriodicalIF":0.0,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142428143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Algae as a source of bionanofactory for the synthesis of ecofriendly nanoparticles 藻类作为合成生态友好型纳米颗粒的仿生工厂来源

Environmental Nanotechnology, Monitoring and Management Pub Date : 2024-09-28 DOI: 10.1016/j.enmm.2024.101012

K. Riazunnisa , C. Madhuri , A. Swarna Latha , N. Rajesh , Habeeb Khadri , T. Chandrasekhar , V. Anu Prasanna , M. Subhosh Chandra

{"title":"Algae as a source of bionanofactory for the synthesis of ecofriendly nanoparticles","authors":"K. Riazunnisa , C. Madhuri , A. Swarna Latha , N. Rajesh , Habeeb Khadri , T. Chandrasekhar , V. Anu Prasanna , M. Subhosh Chandra","doi":"10.1016/j.enmm.2024.101012","DOIUrl":"10.1016/j.enmm.2024.101012","url":null,"abstract":"<div><div>Nanoparticle synthesis using biological systems has become increasingly popular because of its simplicity, cost effectiveness, and eco-friendliness. Nanoparticles have unique properties and are hence being increasingly explored for various applications, including medicine, cosmetics, agriculture, and bioremediation. In particular, the use of algae for the production of nanoparticles has recently drawn increased amounts of attention because of the possible advantages of this process over conventional methods. The current review aims to document, update, and uncover all the details pertaining to algal nanoparticle synthesis, characterization and applications. Algae have substantial economic value for large-scale manufacturing of various components. It has been used to synthesize a variety of nanoparticles, such as iron, zinc, copper, gold, and silver. Several algal metal and metal oxide nanoparticles have been shown to exhibit anticancer, antibacterial, antifungal, antibiofilm, antiplasmodial, antioxidant, and catalytic properties. Although there has been some success in obtaining nanoparticle production from algal species, there are still some unexplored facts that need to be uncovered to improve production. Therefore, this article reviews the recent advances in synthesizing and characterizing nanoparticles from algae and their potential applications.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 101012"},"PeriodicalIF":0.0,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142428144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microplastics in ecological system: Their prevalence, health effects, and remediation 生态系统中的微塑料：它们的普遍性、对健康的影响和补救措施

Environmental Nanotechnology, Monitoring and Management Pub Date : 2024-09-19 DOI: 10.1016/j.enmm.2024.101007

Aris Ismanto , Tony Hadibarata , Risky Ayu Kristanti , Muhammad Zainuri , Denny Nugroho Sugianto , Wulan Kusumastuti , Malya Asoka Anindita

{"title":"Microplastics in ecological system: Their prevalence, health effects, and remediation","authors":"Aris Ismanto , Tony Hadibarata , Risky Ayu Kristanti , Muhammad Zainuri , Denny Nugroho Sugianto , Wulan Kusumastuti , Malya Asoka Anindita","doi":"10.1016/j.enmm.2024.101007","DOIUrl":"10.1016/j.enmm.2024.101007","url":null,"abstract":"<div><div>Water is a fundamental component of human physiological processes, playing a crucial role in functions such as nutrient assimilation and metabolic activities. Furthermore, it plays a crucial role in guaranteeing a plentiful food supply for all organisms. In addition to its duty in providing nutrition, water serves as a home for many life forms and plays a vital part in establishing a conducive living environment. However, the introduction of plastic materials has led to the occurrence of microplastics (MPs) in aquatic environments, which has become a global issue that has attracted significant interest from both the scientific community and the general public. The increasing worldwide demand for plastics can be ascribed to its multifunctionality in commercial and industrial contexts, combined with its cost-effectiveness. Members of Parliament have been identified through multiple sources, including but not limited to cosmetic products, industrial wastes, and fishing operations. The primary aim of this research is to conduct a thorough examination of the consequences resulting from the widespread presence of MPs on both terrestrial and marine ecosystems, as well as the impact on human welfare. Therefore, it is crucial to develop efficient mitigation measures in order to remove MPs from water reservoirs, protect ecological integrity, and provide a safer environment for future generations. Furthermore, this work evaluates the benefits and limitations of utilized methodologies, elucidating the inherent difficulties in MPs research that require resolution in order to achieve a thorough comprehension of these particles. International collaboration plays a crucial role in efficiently resolving concerns related to marine pollutants, as they have the ability to disperse by wind and sea currents, leading to possible repercussions that are difficult to predict.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 101007"},"PeriodicalIF":0.0,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142428152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Treatment of gaseous toluene in an anoxic hybrid bioreactor: Optimization using response surface methodology 在缺氧混合生物反应器中处理气态甲苯：利用响应面方法进行优化

Environmental Nanotechnology, Monitoring and Management Pub Date : 2024-09-19 DOI: 10.1016/j.enmm.2024.101006

Pallavi Chaudhary , Susant Kumar Padhi , Lopa Pattanaik

{"title":"Treatment of gaseous toluene in an anoxic hybrid bioreactor: Optimization using response surface methodology","authors":"Pallavi Chaudhary , Susant Kumar Padhi , Lopa Pattanaik","doi":"10.1016/j.enmm.2024.101006","DOIUrl":"10.1016/j.enmm.2024.101006","url":null,"abstract":"<div><div>This study focuses on treating gaseous toluene emissions from chemical and petrochemical industries using an anoxic hybrid bioreactor (AnHBR) and optimizing the process using response surface methodology (RSM). By varying the gas flow rate (0.05–0.25 LPM) of toluene, the gas residence time (GRT) within the AnHBR ranged from 0.53 to 2.67 h, resulting in an inlet loading rate (ILR) between 0.36 to 14.33 g/m<sup>3</sup> h. Simultaneously, the hydraulic retention time (HRT) of the liquid feed was varied from 24 to 72 h in the AnHBR. The operating parameters were varied to determine the optimal combination to achieve the maximum toluene removal, which remained above 96% throughout the operation. At the optimized combinations (flow rate: 0.15 LPM, GRT: 0.89 h, and HRT: 48 h) in AnHBR, toluene removal reached ∼99%, with end products generated consisting of 1.8% CO<sub>2</sub> and 92.9% N<sub>2</sub> gas. Metagenomics analysis revealed a dominance of toluene degraders (∼38%), highlighting their potential to degrade toluene in the AnHBR. The RSM enhanced toluene treatment in the AnHBR, demonstrating robustness in handling high pollutant loads and its potential for industrial applications.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 101006"},"PeriodicalIF":0.0,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142318885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Green biosynthesis of Ag-doped hetero-metallic oxide nanocomposite for efficient sunlight-driven photo-adsorptive degradation of carcinogenic naphthalene and phenanthrene 绿色生物合成掺银杂质金属氧化物纳米复合材料，用于在阳光驱动下高效光吸附降解致癌物质萘和菲

Environmental Nanotechnology, Monitoring and Management Pub Date : 2024-09-19 DOI: 10.1016/j.enmm.2024.101008

Sudha Choudhary , Manviri Rani , Uma Shanker

{"title":"Green biosynthesis of Ag-doped hetero-metallic oxide nanocomposite for efficient sunlight-driven photo-adsorptive degradation of carcinogenic naphthalene and phenanthrene","authors":"Sudha Choudhary , Manviri Rani , Uma Shanker","doi":"10.1016/j.enmm.2024.101008","DOIUrl":"10.1016/j.enmm.2024.101008","url":null,"abstract":"<div><div>One of the most significant issues facing the world today is environmental contamination due to the polycyclic aromatic hydrocarbons, or PAHs release of reactive chemicals into the environment. Here, a green technology was used to synthesis the Ag doped Bi<sub>2</sub>O<sub>3</sub>@Co<sub>3</sub>O<sub>4</sub> nanocomposite utilizing an extract from Azadirachta indica leaves. The morphological and structural examination of Ag doped Co<sub>3</sub>O<sub>4</sub>@Bi<sub>2</sub>O<sub>3</sub> revealed an image in the form of a hollow spherical or flake adsorbed on a Ag surface with an increase surface area. New peaks in the FT-IR spectra of Ag–O and Co–O–Bi at 678 cm<sup>−1</sup> and 1130 cm<sup>−1</sup>, respectively, show the coupling of Ag. Following this, under various reaction conditions (pollutant: 10–30 mg/L; catalyst: 10–30 mg; pH: 3–11, dark sunlight) the doped nanocomposite was assessed for the efficient removal of NAP and PHE. Ag doped Co<sub>3</sub>O<sub>4</sub>@Bi<sub>2</sub>O<sub>3</sub> displayed maximum degradation of NAP (96 %) and PHE (94 %) at 10 mg/L conc. of each PAH with a 25 mg catalytic dose at neutral pH in the presence of direct sunlight. First-order kinetics followed by initial Langmuir adsorption constituted the degradation process. Predominant reactive species and safer metabolite formation in the photocatalysis process of PAHs were studied by scavenger and GC–MS analysis. The green nano photocatalyst that was created demonstrated excellent stability, sensitivity, and reusability (up to 8th cycles) during the degrading process, which likely qualified it for use in industrial uses.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 101008"},"PeriodicalIF":0.0,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142312914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of low-cost metal-loaded adsorbent using post-consumer waste plastics: Experimental and modelling studies 利用消费后废塑料制备低成本金属吸附剂：实验和模型研究

Environmental Nanotechnology, Monitoring and Management Pub Date : 2024-09-18 DOI: 10.1016/j.enmm.2024.101009

Sreeja Sarkar, Naba Kumar Mondal

{"title":"Preparation of low-cost metal-loaded adsorbent using post-consumer waste plastics: Experimental and modelling studies","authors":"Sreeja Sarkar, Naba Kumar Mondal","doi":"10.1016/j.enmm.2024.101009","DOIUrl":"10.1016/j.enmm.2024.101009","url":null,"abstract":"<div><div>Fluoride contamination in drinking water is a world-wide problem which causes dangerous irreversible diseases called fluorosis. The present study highlighted the efficacy of metals (Al and Zn) impregnated thermally degraded products of polyethylene terephthalate (PET) towards the removal of fluoride from the solution. Synthesized metal impregnated carbonaceous materials was characterised by pHzpc, proximate analysis, SEM, EDX and FTIR studies. A batch adsorption study with operating variables such as initial concentration, pH, adsorbent dose, contact time, temperature and agitation speed were undertaken. Then an optimization study was performed through Response Surface Methodology (RSM). The results revealed that the adsorption isotherm and kinetics followed Langmuir Isotherm model (R<sup>2</sup> = 0.968) and pseudo-second order kinetics (R<sup>2</sup> = 0.995), respectively with adsorption capacity 6.793 mg/g. The thermodynamics of fluoride adsorption reveal that the adsorption was spontaneous and endothermic in nature. The RSM results demonstrated the optimization of operating parameters such as initial concentration (9.95 mg/L), adsorbent dose (0.01 g/50 mL), contact time (11.42 min) and temperature (331 K). The result from perturbation plot indicate that the most influential parameters are initial concentration followed by temperature and adsorbent dose and the least influential parameter is contact time. Finally, it can be concluded that waste PET plastics could be a valuable adsorbent for decontamination of pollutants from aqueous medium.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 101009"},"PeriodicalIF":0.0,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142324079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Absorption of commercial and nanoparticulate ZnO and MgO synthesized by combustion reaction applied to maize soil 应用于玉米土壤的商品和通过燃烧反应合成的纳米微粒氧化锌和氧化镁的吸收率

Environmental Nanotechnology, Monitoring and Management Pub Date : 2024-09-13 DOI: 10.1016/j.enmm.2024.101005

T.E.P. Alves , A.G.A. Diniz , G.M.V.V. Safadi , C.M. Silva-Neto

{"title":"Absorption of commercial and nanoparticulate ZnO and MgO synthesized by combustion reaction applied to maize soil","authors":"T.E.P. Alves , A.G.A. Diniz , G.M.V.V. Safadi , C.M. Silva-Neto","doi":"10.1016/j.enmm.2024.101005","DOIUrl":"10.1016/j.enmm.2024.101005","url":null,"abstract":"<div><p>Nanotechnology has rapidly expanded across various fields, yet its application in agriculture remains underexplored. This study investigates the impact of zinc oxide (ZnO) and magnesium oxide (MgO) nanoparticles on maize cultivation, comparing commercial samples with those synthesized by combustion reaction. Synthesized ZnO and ZnO/MgO (1:1 by mass) were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM) to determine particle size and morphology. The experimental design assessed the effects of different treatments on magnesium and zinc uptake in maize roots and leaves, using atomic absorption spectrometry (AAS) for analysis. Results indicate that commercial ZnO significantly increased Zn absorption compared to synthesized samples and the control group, highlighting the influence of particle size and surface area on nutrient uptake. This study provides valuable insights into the potential of nanomaterials into the plant’s absorption mechanism as well as show that the availability of Zn NP synthesized contributes to the absorption of zinc by the plant without competing with Mg. On the other hand, when in Zn commercial, Mg absorption may be impaired.</p></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 101005"},"PeriodicalIF":0.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142239955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0