International Journal of Environmental Science and Technology最新文献

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Synthesis and characterization of a novel g-C3N4/NiAl-LDH/CeO2 photocatalyst for degradation of rhodamine B 新型g-C3N4/NiAl-LDH/CeO2光催化剂的合成与表征
IF 3 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2024-10-26 DOI: 10.1007/s13762-024-06052-2
M. Niknam, M. B. Vandchali, E. Ghasemi, A. Kazemi, N. Yousefi-Limaee
{"title":"Synthesis and characterization of a novel g-C3N4/NiAl-LDH/CeO2 photocatalyst for degradation of rhodamine B","authors":"M. Niknam,&nbsp;M. B. Vandchali,&nbsp;E. Ghasemi,&nbsp;A. Kazemi,&nbsp;N. Yousefi-Limaee","doi":"10.1007/s13762-024-06052-2","DOIUrl":"10.1007/s13762-024-06052-2","url":null,"abstract":"<div><p>A novel photocatalyst comprising g-C3N4/NiAl-layered double hydroxide (LDH)/CeO2 nanocomposites were synthesized via a straightforward hydrothermal method. Rhodamine B (RB) was employed as a model dye to assess the degradation efficiency of the nanocomposites. The catalytic efficiency of the synthesized ternary nanocomposites was compared with of dual g-C3N4/NiAl-LDH and NiAl-LDH/CeO2 nanocomposites. The pristine photocatalysts were subjected to characterization through X-ray diffraction (for crystallinity), field emission scanning electron microscopy and transmission electron microscopy (for microstructure), thermogravimetry analysis (for thermal stability) and X-ray photoelectron spectroscopy (for composition and chemical bondings). UV–visible diffuse reflectance spectroscopy were used for energy band gap calculations. Results demonstrated the successful formation of g-C3N4/NiAl-LDH/CeO2 3D nanocomposite by bridging g-C3N4 and CeO2. The resultant g- C3N4/NiAl-LDH/CeO2 composite exhibited superior photocatalytic activity compared to bare NiAl-LDH, CeO2, and g-C3N4/NiAl-LDH and LDH/CeO2 nanocomposites, achieving a degradation efficiency of 98% for RB under UV irradiation after 350 min. A broader range of absorption (from UV to visible light) was achieved for ternary nanocomposite. A plausible mechanism was proposed based on the observed results and the kinetic of degradation was studied.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 6","pages":"4215 - 4228"},"PeriodicalIF":3.0,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental investigation of CO2 absorption enhancement with functionalized MWCNT 功能化MWCNT增强CO2吸收的实验研究
IF 3 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2024-10-26 DOI: 10.1007/s13762-024-06085-7
N. Mohammadpour, M. Abbasi, S. Riahi, N. Salehi Ardali
{"title":"Experimental investigation of CO2 absorption enhancement with functionalized MWCNT","authors":"N. Mohammadpour,&nbsp;M. Abbasi,&nbsp;S. Riahi,&nbsp;N. Salehi Ardali","doi":"10.1007/s13762-024-06085-7","DOIUrl":"10.1007/s13762-024-06085-7","url":null,"abstract":"<div><p>This study investigated the CO<sub>2</sub> absorption on the functionalized multi-walled carbon nanotubes with 1,8-diaminooctane (aMWCNT) in pure water solution and N-methyl diethanolamine (MDEA). Hexadecyltrimethylammonium bromide (CTAB) was used as a surfactant to disperse the nanofluid solution. The results showed that at a concentration of 0.005 wt% aMWCNT in water at 16 bar, the CO<sub>2</sub> absorption capacity increased by 17.5% compared to pure water. It was found that adding aMWCNT to 15wt% MDEA solution improves the absorption rate. However, the highest absorption was at 0.005wt% aMWCNT in the solvent. The absorption capacity increased to 59% at the highest pressure in 15%wt MDEA solution, including aMWCNT, compared to 15%wt MDEA solution. It can be concluded that adding aMWCNT has advantages such as increasing the absorption capacity and reducing the heat of absorption.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 6","pages":"4281 - 4292"},"PeriodicalIF":3.0,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Seasonal variation of the chemical content and source identification of PM2.5 in a mixed landuse in Iran 伊朗混合土地利用中PM2.5化学成分的季节变化及来源识别
IF 3 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2024-10-23 DOI: 10.1007/s13762-024-06138-x
M. Zare Shahne, N. R. Haghighat, V. Hosseini, G. Uzu, A. Taheri, S. Darfeuil, P. Ginot, J.-L. Besombes, M. Pin, J.-L. Jaffrezo, A. Shamloo
{"title":"Seasonal variation of the chemical content and source identification of PM2.5 in a mixed landuse in Iran","authors":"M. Zare Shahne,&nbsp;N. R. Haghighat,&nbsp;V. Hosseini,&nbsp;G. Uzu,&nbsp;A. Taheri,&nbsp;S. Darfeuil,&nbsp;P. Ginot,&nbsp;J.-L. Besombes,&nbsp;M. Pin,&nbsp;J.-L. Jaffrezo,&nbsp;A. Shamloo","doi":"10.1007/s13762-024-06138-x","DOIUrl":"10.1007/s13762-024-06138-x","url":null,"abstract":"<div><p>S. Karaj is the fourth largest city upwind of Tehran, Iran’s capital. The complexity of emission sources in and around the city makes the development of targeted mitigation policies more challenging. This study is focused on identifying the mass concentration of PM<sub>2.5</sub>, along with its chemical composition and associated sources. Biweekly fine PM samples, started in October 2020 and lasted for one year,were obtained at an air quality monitoring station and analyzed by ion chromatography paired with a mass spectrometer (IC-MS) and thermal-optical analysis (TOA). Annual average concentration of PM<sub>2.5</sub> was 29.61 ± 17.84 µg/m<sup>3</sup>, ranging from 9.16 µg/m<sup>3</sup> (in December 2020) to 99.04 µg/m<sup>3</sup> (in November 2020). Based on the chemical mass closure (CMC) results, organic matter (OM) was a principal constituent, accounting for 31% of PM<sub>2.5</sub> mass. The nitrate, dust and non-sea sulfate contributed most significantly to PM mass by accounting for 15%, 13% and 11%, respectively. The diagnostic ratios reflected that, anthropogenic sources (mobile sources and biomass combustion) play a significant role in PM concentration. The study’s findings are significant as they not only influence policy-making for controlling PM in one of the largest cities but also have a broader impact on air pollution in the capital city, located just downwind. The insights provided by this study on primary components in fine particulate matter will be instrumental in leveraging these findings alongside emission inventory and observational data. This integration aims to inform policymaking processes and facilitate the creation of science-based policies, while also furnishing essential data for health impact assessments.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 6","pages":"4157 - 4172"},"PeriodicalIF":3.0,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analyzing and optimizing the adsorption of metronidazole antibiotic on nano-scale pumice mine waste based RSM-CCD technique in water 基于RSM-CCD技术的纳米浮石矿渣在水中吸附甲硝唑抗生素的分析与优化
IF 3 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2024-10-23 DOI: 10.1007/s13762-024-06102-9
A. Jonidi Jafari, H. Jafari Mansoorian, H. Askarpour, M. Salari, F. Eslami, M. Faraji, F. Shomoossi, H. Abdipour, F. Jaberi Ansari
{"title":"Analyzing and optimizing the adsorption of metronidazole antibiotic on nano-scale pumice mine waste based RSM-CCD technique in water","authors":"A. Jonidi Jafari,&nbsp;H. Jafari Mansoorian,&nbsp;H. Askarpour,&nbsp;M. Salari,&nbsp;F. Eslami,&nbsp;M. Faraji,&nbsp;F. Shomoossi,&nbsp;H. Abdipour,&nbsp;F. Jaberi Ansari","doi":"10.1007/s13762-024-06102-9","DOIUrl":"10.1007/s13762-024-06102-9","url":null,"abstract":"<div><p>Recently, concerns have increased regarding the presence of antibiotics in water resources. This increase has been caused by the discharge of untreated or incompletely treated pharmaceutical wastewater into aquatic environments. Metronidazole is a widely used antibiotic for the treatment of infections caused by anaerobic bacteria and protozoa. The present study investigated the efficacy of nano-pumice prepared from pumice mine waste as a low-cost adsorbent for metronidazole removal from aqueous environments. The effects of input variables, including pH, contact time, nano-pumice dose, and metronidazole concentration, were investigated. The experimental design was based on central point’s using the response surface method to study adsorption. After optimizing the input variables, isotherm and kinetic studies were conducted. The properties of the adsorbent were characterized through FESEM, XRD, BET, and FTIR analyses. The results indicated that the adsorption process followed a quadratic polynomial model, with F and p values of 990.936 and less than 0.0001, respectively. Additionally, the R<sup>2</sup> was 0.9989, and the Adj-R<sup>2</sup> was 0.9979. The optimal conditions for achieving a removal efficiency of 94.55% and maximum adsorption capacity of 15.313 mg/g were found to be pH = 3, contact time = 60 min, adsorbent dose = 1.5 g/L, and metronidazole concentration = 20 mg/L. Furthermore, the adsorption process aligned with the Langmuir isotherm and pseudo-first-order kinetics, as indicated by R<sup>2</sup> values of 0.9965 and 0.9859, respectively. Therefore, nano-pumice can be suggested as a natural and environmentally friendly adsorbent with significant potential for the adsorption of metronidazole and similar antibiotics from aqueous media.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 6","pages":"4091 - 4108"},"PeriodicalIF":3.0,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigating recombinant manganese-catalases from Geobacillus thermopakistaniensis for sustainable and eco-friendly textile processing 研究来自热巴基斯坦地杆菌的重组锰催化酶在可持续和生态友好型纺织品加工中的应用
IF 3 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2024-10-22 DOI: 10.1007/s13762-024-06072-y
A. Shaeer, I. Aroob, M. Aslam, N. Azim, N. Rashid
{"title":"Investigating recombinant manganese-catalases from Geobacillus thermopakistaniensis for sustainable and eco-friendly textile processing","authors":"A. Shaeer,&nbsp;I. Aroob,&nbsp;M. Aslam,&nbsp;N. Azim,&nbsp;N. Rashid","doi":"10.1007/s13762-024-06072-y","DOIUrl":"10.1007/s13762-024-06072-y","url":null,"abstract":"<div><p>Catalases are hydroperoxidases with numerous industrial applications. In textile industry, these enzymes efficiently remove hydrogen peroxide residues from bleached cotton fabrics. The commercial catalases used in the textile industry are either heme-catalases or catalase-peroxidases, which are thermolabile. Thermostable manganese-catalases represent a promising, yet unexplored alternative for this purpose. The present study explores the potential of three manganese-catalases (Cat<sub><i>Gt</i></sub>, Cat-II<sub><i>Gt</i></sub>, Cat<sub><i>Gt</i></sub>-ΔC) from <i>Geobacillus thermopakistaniensis</i> for bleach clean-up process. These enzymes demonstrated superior performance to the commercial enzymes. Notably, Cat-II<sub><i>Gt</i></sub> emerged as the most effective, offering significant advantages due to its high activity, thermostability, and alkaline nature. This enzyme can be directly added to the bleach bath, thereby reducing water consumption without compromising subsequent processes. To the best of our knowledge, this is the first report on applications of manganese-catalases, a less explored class, in the textile industry.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 8","pages":"6903 - 6912"},"PeriodicalIF":3.0,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143612103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Underwater superoleophobic and underoil superhydrophobic PDA/Na2SiO3/N-TiO2coated mesh for selective oil/water separation and photocatalytic degradation of methylene blue 水下超疏油和水下超疏水PDA/Na2SiO3/ n - tio2涂层网用于选择性油/水分离和光催化降解亚甲基蓝
IF 3 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2024-10-22 DOI: 10.1007/s13762-024-06134-1
D. Q. Y. Alfarraji, A. A. Amooey, F. Elmi
{"title":"Underwater superoleophobic and underoil superhydrophobic PDA/Na2SiO3/N-TiO2coated mesh for selective oil/water separation and photocatalytic degradation of methylene blue","authors":"D. Q. Y. Alfarraji,&nbsp;A. A. Amooey,&nbsp;F. Elmi","doi":"10.1007/s13762-024-06134-1","DOIUrl":"10.1007/s13762-024-06134-1","url":null,"abstract":"<div><p>In this study, a modified stainless steel (SS) mesh was used to selectively separate both light and heavy oils from oil/water mixtures. The first layer consisted of polydopamine (PDA). The rigid building blocks of Na<sub>2</sub>SiO<sub>3</sub> and N-TiO<sub>2</sub> were formed on the SS/PDA surface, resulting in the SS/PDA/Na<sub>2</sub>SiO<sub>3</sub>/N-TiO<sub>2</sub> mesh. Modified meshes were characterized using FESEM/EDX, ATR-FTIR spectroscopy, underwater oil contact angle, and underoil water contact angle methods. The results revealed that the underoil superhydrophobic and underwater superoleophobic coated mesh could selectively remove both heavy and light oils from water for up to twenty repeated cycles, with high separation efficiencies of 94% and 98%, respectively. The modified mesh demonstrated high photocatalytic degradation of methylene blue within 240 min under UV-A illumination. This specially designed membrane offers the benefit of selectively separate heavy and light oils from oil/water mixtures without the need for external stimuli. Furthermore, it exhibits photo-responsive characteristics and can effectively degrade pollutants when exposed to UV-A light. Therefore, the coated mesh can show significant promise for industrial applications.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 6","pages":"4043 - 4054"},"PeriodicalIF":3.0,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of antioxidant, antibacterial and thermal stability properties of silver nanoparticles synthesised with Infundibulicybe gibba extract 长春藤提取物合成纳米银的抗氧化、抗菌和热稳定性评价
IF 3 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2024-10-22 DOI: 10.1007/s13762-024-06131-4
I. Meydan, H. Seckin, Y. Kocak, E. Okumus, M. Bekmezci, F. Sen
{"title":"Evaluation of antioxidant, antibacterial and thermal stability properties of silver nanoparticles synthesised with Infundibulicybe gibba extract","authors":"I. Meydan,&nbsp;H. Seckin,&nbsp;Y. Kocak,&nbsp;E. Okumus,&nbsp;M. Bekmezci,&nbsp;F. Sen","doi":"10.1007/s13762-024-06131-4","DOIUrl":"10.1007/s13762-024-06131-4","url":null,"abstract":"<div><p>Mushrooms have been used by people for centuries for various purposes due to their unique taste, high nutritional content and pharmacological effects. Bioactive components in the structure of mushrooms are an important biological source for the green synthesis of silver nanoparticles (AgNPs) as reducing and stabilizing agents. In this study, AgNPs/Ig were synthesized using the mushroom species <i>Infundibulicybe gibba</i>. The color transformation of the formed nanoparticles from yellow to brown occurred and peaked at 370 nm in the UV–Vis spectrum. The nanoparticles had amorphous shape and their molecular characterization was determined by Fourier transform infrared spectroscopy (FTIR). AgNPs/Ig was much more stable (− 50.02 mV) and its hydrodynamic diameter was much lower (216.50 nm) compared to the mushroom extract. A significant increase in the antioxidant activity (IC<sub>50</sub> 5.66 mg/ml) and thermal stability of the formed nanoparticles was determined. Lipid peroxidation inhibition of the extract and nanoparticles was measured as IC<sub>50</sub> value of 6.75 and 5.51 mg/ml, respectively. In the antimicrobial analysis results, while the mushroom extract did not show any inhibition against the selected microorganisms, AgNPs/Ig showed a low antimicrobial activity. As a result, the synthesis of AgNPs/Ig was carried out through green synthesis, which is environmentally friendly, safe, cost-effective, easy to use and does not contain toxic chemicals, and it has been revealed that AgNPs synthesized using this mushroom species have advantageous potential for use.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 8","pages":"6957 - 6966"},"PeriodicalIF":3.0,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143612105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cost-effective composted municipal waste and sugarcane bagasse for forest seedling production: insights into physiological quality assessment 经济高效的城市垃圾和甘蔗渣堆肥林苗生产:生理质量评估的启示
IF 3 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2024-10-21 DOI: 10.1007/s13762-024-06114-5
M. A. S. Nobrega, M. S. Pontes, G. Santos, C. A. L. Cardoso, I. S. Motta, E. F. Santiago
{"title":"Cost-effective composted municipal waste and sugarcane bagasse for forest seedling production: insights into physiological quality assessment","authors":"M. A. S. Nobrega,&nbsp;M. S. Pontes,&nbsp;G. Santos,&nbsp;C. A. L. Cardoso,&nbsp;I. S. Motta,&nbsp;E. F. Santiago","doi":"10.1007/s13762-024-06114-5","DOIUrl":"10.1007/s13762-024-06114-5","url":null,"abstract":"<div><p>As a result of the treatment stations' operation, sewage sludge has become a problem on a global scale. Alternatives to a better destination are imperative, highlighting the employment of sewage sludge as a plant subtract. This study evaluated the physiological and chemical status of <i>Maclura tinctoria</i> (L.) seedlings cultivated in a substrate composed of a mixture of sewage sludge and sugarcane bagasse, through the chlorophyll fluorescence technical and the inner metals concentration, aiming to discuss ecologically correct means for waste management and sustainable forestry practices. The results indicated that the treatments with the proposed substrate positively impacted the physical and physiological plants characteristics (<i>p</i> &lt; 0.05). Overdoses provoked increases in the inner concentration of metals (Fe, Zn) and heavy metals (Cu, Cd, Cr, Pb, and Ni). However, the photochemical activity of photosystem II indicates that the phytotoxic risk is lower than expected. The changes observed in the chlorophyll-<i>a</i> fluorescence induction curves, which reflect the photochemical activity of the leaves, corroborate this. In this way, the ability of the substrate to optimize the growth of young plants is highlighted, as well as the need to monitor the accumulation of metals in plant tissues, contributing valuable information on the advantages and ecological consequences of using sewage sludge in forestry and promoting sustainable waste management and reforestation methods. Research involving sewage sludge use is important to avoid the accumulation of this contaminant in landfills.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 8","pages":"6835 - 6846"},"PeriodicalIF":3.0,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143612100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unraveling the mechanisms of methylene blue adsorption onto biochar: a robust and sustainable approach for water remediation 揭示亚甲基蓝吸附到生物炭上的机制:一种稳健和可持续的水修复方法
IF 3 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2024-10-16 DOI: 10.1007/s13762-024-06111-8
B. Vafakish, A. Babaei-Ghazvini, B. Acharya
{"title":"Unraveling the mechanisms of methylene blue adsorption onto biochar: a robust and sustainable approach for water remediation","authors":"B. Vafakish,&nbsp;A. Babaei-Ghazvini,&nbsp;B. Acharya","doi":"10.1007/s13762-024-06111-8","DOIUrl":"10.1007/s13762-024-06111-8","url":null,"abstract":"<div><p>Biochar has emerged as a cost-effective adsorbent for the removal of diverse pollutants. In this investigation, six different biochar variants were derived from oat hull and pea hull, generated at varying pyrolysis temperatures spanning 500°C–700°C. Different methods were employed to characterize these biochars, which were subsequently utilized as adsorbents for the removal of methylene blue (MB) from aqueous solutions. The adsorption performance of the biochar samples is closely linked to the temperature at which pyrolysis was conducted. Significantly, biochar produced at higher temperatures demonstrates markedly enhanced adsorption capabilities compared to those from lower temperatures, with a surface area exceeding 250 m<sup>2</sup>/g. Adsorption data is best fitted with Sips isotherm Notably, oat hull biochar exhibits a higher maximum adsorption capacity than pea hull biochar, with capacities of 183.4 mg/g and 145.5 mg/g, respectively, and removal efficiencies of 97% and 91%. An exploration of the adsorption mechanism reveals that MB adsorption is influenced not solely by Lewis’s acid–base interactions but also by π–π interactions entailing the biochar’s surface. The adsorption of methylene blue by biochar offers a sustainable and cost-effective solution for wastewater treatment, contributing to environmental remediation and resource utilization.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 8","pages":"7053 - 7064"},"PeriodicalIF":3.0,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143612015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sustainable management of Alternanthera philoxeroides by anaerobic digestion: optimization of food to microorganism ratio and kinetic study 厌氧消化对绿草的可持续管理:食物微生物比优化及动力学研究
IF 3 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2024-10-16 DOI: 10.1007/s13762-024-06109-2
N. Kanaujia, A. Roy, J. Singh
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