{"title":"Synthesis of carboxamide sensors for neurotoxic Cu2+ ions in safer green solvents and reaction conditions","authors":"Nidhi Sharma , Ashu Gulati","doi":"10.1016/j.scowo.2024.100026","DOIUrl":"10.1016/j.scowo.2024.100026","url":null,"abstract":"<div><p>Green amidation is simple and efficient for the synthesis of drugs and biomolecules. Green chemistry synthesis is always directed at achieving sustainability. Neurotoxins are critical targets for metabolic medicines to capture and eliminate from the body. Copper is a fatal brain neurotoxin. The C1-C4 probes were synthesized by reacting 3-coumarin carboxylic acid with 4-phenyl butyl amine, N-ethyl benzylamine, 4-dodecylaniline, and 3,3 - diphenyl propylamine in polar green solvent ethanol. These were tested for their metal-binding ability in environmentally safe aqueous acetonitrile with hyphenated techniques. The probes show significant binding with Cu<sup>2+</sup> ions in the aqueous acetonitrile. The ascending order of anti-neurotoxin action is C3>C4>C2>C1 seen in the Limit of detection (Lod) values. Also, molecular mechanics (MM2) descriptors firmly point towards their use as drugs.</p></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"4 ","pages":"Article 100026"},"PeriodicalIF":0.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272942","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}
{"title":"Green and Reflux method synthesis of CeO2/rGO for their characterization and Photodegradation of dye","authors":"M.C. Roopa , S. Thirumala , Sharadadevi Kallimani , B.M. Manohara","doi":"10.1016/j.scowo.2024.100024","DOIUrl":"10.1016/j.scowo.2024.100024","url":null,"abstract":"<div><p>In this study, cerium oxide (CeO<sub>2</sub>) was synthesized using a green and eco-friendly solution combustion method with lemongrass as the fuel source. The synthesis process was simple and environmentally friendly, leveraging a straightforward reflux technique to prepare the CeO<sub>2</sub>/rGO composite. The resulting CeO<sub>2</sub> and CeO<sub>2</sub>/rGO composite was characterized using various analytical techniques, including XRD, FE-SEM, FTIR, EDX, UV-Vis, XPS, and BET analysis. The photocatalytic performance of the CeO<sub>2</sub>/rGO composite was evaluated through the degradation of Methyl Violet (MV) dye, demonstrating a remarkable photocatalytic efficiency with approximately 99 % degradation following a first-order reaction kinetics. The half-life period (t₁/₂) of the degradation process was determined to be 19.01 minutes, and the rate constant (k) was calculated to be 0.03971 min⁻¹. The study also explored various factors affecting the photocatalytic activity, including pH levels, dye concentration, light source, and the amount of catalyst used. Additionally, scavenger studies were performed to identify the reactive species involved, and the total organic carbon (TOC) removal efficiency was evaluated. The reusability of the CeO<sub>2</sub>/rGO catalyst was also investigated, demonstrating its potential for sustainable and effective application in environmental remediation processes.</p></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"4 ","pages":"Article 100024"},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142228531","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}
Alexander I. Ikeuba , Christopher U. Sonde , Destiny Charlie , Brian E. Usibe , Monsurat Raimi , Anthony I. Obike , Thomas O. Magu
{"title":"A review on exploring the potential of liquid hydrogen as a fuel for a sustainable future","authors":"Alexander I. Ikeuba , Christopher U. Sonde , Destiny Charlie , Brian E. Usibe , Monsurat Raimi , Anthony I. Obike , Thomas O. Magu","doi":"10.1016/j.scowo.2024.100022","DOIUrl":"10.1016/j.scowo.2024.100022","url":null,"abstract":"<div><p>The world’s fossil fuel dependence has led to a significant increase in emissions of carbon leading to environmental pollution/degradation. To conserve our fast-dilapidating environment, the search for sustainable and clean energy sources has become a top priority. Hydrogen is adjudged to be among the most likely alternative sources of energy for a sustainable future. Amongst the several forms of hydrogen, Liquid hydrogen has attracted considerable attention as a positive option owing to its high energy density, zero-emission characteristics, and potential to be produced from renewable sources. This review explores the differences between gaseous hydrogen and liquid hydrogen, using of liquid hydrogen as an energy carrier and fuel cell, focusing on its potential to transform energy storage and transportation. This work also deals with reviews on the different liquefaction technologies applicable in the manufacture of liquid hydrogen based on efficiency.</p></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"3 ","pages":"Article 100022"},"PeriodicalIF":0.0,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142087595","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}
{"title":"High aluminum removal efficiency by the two green microalgae, Scenedesmus sp., and Nannochloropsis sp., under laboratory conditions","authors":"Huu-Viet Nguyen , Minh-Hoang Nguyen , Viet Tuan Tran , Pham-Yen-Nhi Tran , Tan-Duc Nguyen , Thi-Thanh-Nhan Luu , Thanh-Son Dao","doi":"10.1016/j.scowo.2024.100023","DOIUrl":"10.1016/j.scowo.2024.100023","url":null,"abstract":"<div><p>Heavy metal contamination, such as aluminum (Al), is a significant global environmental concern. In addressing this issue, the ecologically-friendly method of phytoremediation using microalgae has been gaining attention. Our study explored the Al uptake capabilities of two green microalgae species, <em>Scenedesmus</em> sp<em>.</em> and <em>Nannochloropsis</em> sp<em>.,</em> under laboratory conditions. Both species were exposed to varying Al concentrations (0.5, 1, and 2 mg L<sup>−1</sup>) to evaluate their growth and tolerance levels over two weeks. Results showed that <em>Scenedesmus</em> sp<em>.</em> not only demonstrated tolerance to Al up to 2 mg L<sup>−1</sup> but also had an enhanced growth rate at the 2 mg L<sup>−1</sup> concentration during the 8–14 day period. On the contrary, <em>Nannochloropsis</em> sp<em>.</em> displayed a reduced growth rate at 2 mg L<sup>−1</sup> of Al concentration. Both species showed an Al removal efficiency of up to 98–99.7 %. The removal efficiency of two algae was abundance-independent in the present study. Our findings indicated that both microalgae species offer great potential for treating Al-contaminated water, with <em>Scenedesmus</em> sp<em>.</em> standing out for tolerance and removal efficiency, while <em>Nannochloropsis</em> sp<em>.</em> excels in absorbing Al at lower concentrations.</p></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"3 ","pages":"Article 100023"},"PeriodicalIF":0.0,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142087592","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}
E. Mier-Alba , S.E. Martiniano , S. Sánchez-Muñoz , G.C.K. de Oliveira , J.C. Santos , S.S. da Silva
{"title":"Sustainable production of nutritional iron-enriched yeast from low-cost bran sources: A valuable feedstock for circular economy","authors":"E. Mier-Alba , S.E. Martiniano , S. Sánchez-Muñoz , G.C.K. de Oliveira , J.C. Santos , S.S. da Silva","doi":"10.1016/j.scowo.2024.100021","DOIUrl":"10.1016/j.scowo.2024.100021","url":null,"abstract":"<div><p>Enhancing iron bioavailability through iron-enriched yeast offers a promising nutritional solution. This study explores the sustainable production of iron-enriched yeast using soybean, corn, and wheat bran hydrolysates as low-cost culture media in submerged fermentation. Culture mediums were supplemented with 15 mg L<sup>−1</sup> of Fe<sup>+2</sup>. Iron-yeast production was successful using starchy hydrolysates due to their rich composition. Soybean bran hydrolysate achieved the highest biomass production (7.9 g L<sup>−1</sup> dry cell), corn bran hydrolysate accomplished the largest iron incorporation (3.18 mg of iron/gram of dry cell); while supplemented wheat hydrolysate attained the greatest yield (2.58 ± 0.68 g/g). This research showed high potential on the production of iron-enriched yeast biomass from starchy hydrolysates, and the potential production of health and food products through sustainable production methods.</p></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"3 ","pages":"Article 100021"},"PeriodicalIF":0.0,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142050187","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}
{"title":"Tuning optical excitations of graphene quantum dots through selective nitrogen doping","authors":"Saurav Kumar, Neha Agnihotri","doi":"10.1016/j.scowo.2024.100020","DOIUrl":"10.1016/j.scowo.2024.100020","url":null,"abstract":"<div><p>Our research has revealed that the nitrogen doping configuration has a significant impact on the absorption properties and band gap of nitrogen doped graphene quantum dots (NGQDs). By analyzing the composition and character of optical transitions, we have observed that nitrogen doping causes a redistribution of oscillator strength between significant peaks and the emergence of new optical features. These changes lead to broken molecular orbital degeneracies, optical peak splitting, and activation of dark states in the visible to near-infrared (NIR) region. These findings shed light on the mechanisms that govern alterations in the spectral properties of NGQDs within the visible and near-infra red (NIR) absorption bands. Furthermore, selective manipulation of optoelectronic properties via distinct N-doping patterns could pave the way for the development of novel optoelectronic nanodevices and functional materials.</p></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"3 ","pages":"Article 100020"},"PeriodicalIF":0.0,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142012262","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}
{"title":"Comparative analysis of microplastic measurement units: Concatenating items/m³, particles/kg, and mg/kg","authors":"Venkteshwar Yadav, Dharm Pal","doi":"10.1016/j.scowo.2024.100019","DOIUrl":"10.1016/j.scowo.2024.100019","url":null,"abstract":"<div><p>Plastics are the most utilized material in every commercial or domestic sector. The extensive use of plastics can lead to the generation of byproducts, and microplastics are among them. The introduction and integration of microplastics into the environment have severe effects on both living and non-living entities. Moreover, extracting and removing microplastics from the environment presents significant challenges. In this context, recognizing quantity-wise removal becomes a major task. Until now, a universally established method for quantitative measurement has not been established. Various units, such as items/m<sup>3</sup>, particles/kg, and mg/kg, have been utilized based on their suitability. However, these units come with their own merits and demerits. To address this, the article focuses on filling the gaps in the utilization and generalization of units for further studies. Using the mg/kg unit for measuring microplastics in collected samples can be an appropriate method for analysing the quantity of microplastics.</p></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"3 ","pages":"Article 100019"},"PeriodicalIF":0.0,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141990872","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}
Ranjit K. Nath , Muhammad Towhid Moula , Rahul Kumar Sutradhar , Sanjida Mukut , Mst Roksana Khatun , Arup Kumer Roy
{"title":"Assessment of heavy metal concentration in the water of major carp breeding River Halda, Bangladesh","authors":"Ranjit K. Nath , Muhammad Towhid Moula , Rahul Kumar Sutradhar , Sanjida Mukut , Mst Roksana Khatun , Arup Kumer Roy","doi":"10.1016/j.scowo.2024.100018","DOIUrl":"10.1016/j.scowo.2024.100018","url":null,"abstract":"<div><p>Heavy metal contamination in river water is a result of anthropogenic sources like industrial waste, tanneries, used fertiliser, and sewage discharge. Bioaccumulation and toxicity of heavy metals are alarming concerns for the natural carp breeding ground of the one and only river Halda of Bangladesh. Seven heavy metals (Fe, Mn, Cu, Co, Ni, Zn, and Cr (VI)) were assessed in this study following standard methods by gathering data from 36 sampling points that are situated along the area between the origin of Halda and Kalurghat confluence point of Halda and Karnofuli. An atomic absorption spectrophotometer was used for the measurement of the heavy metals, and the correlation between the parameters was determined using principal component analysis (PCA). The concentration of heavy metals ranged from 0.316 to 3.216 mg/L for Fe, 0.023–0.236 mg/L for Mn, 0.022–0.044 mg/L for Cu, 0.022–0.051 mg/L for Co, 0.002–0.008 mg/L for Ni, 0.037–0.282 mg/L for Zn, and 0.013–0.146 mg/L for Cr (VI), respectively. Cu and Mn values in some points were above the permissible limit, but other metal contents were within the permissible limit.</p></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"3 ","pages":"Article 100018"},"PeriodicalIF":0.0,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141952981","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}
Duong Duc La , Hung Manh Khong , Xuan Quynh Nguyen , Trung-Dung Dang , Xuan Thanh Bui , Minh Ky Nguyen , H. Hao Ngo , D. Duc Nguyen
{"title":"A review on advances in graphene and porphyrin-based electrochemical sensors for pollutant detection","authors":"Duong Duc La , Hung Manh Khong , Xuan Quynh Nguyen , Trung-Dung Dang , Xuan Thanh Bui , Minh Ky Nguyen , H. Hao Ngo , D. Duc Nguyen","doi":"10.1016/j.scowo.2024.100017","DOIUrl":"10.1016/j.scowo.2024.100017","url":null,"abstract":"<div><p>Recent advances in sensing technologies address environmental pollution by enabling rapid and sensitive contaminant detection. Among these, porphyrin- and graphene-based electrochemical sensors stand out due to their high surface area, superior conductivity, and analyte sensitivity. Graphene, a two-dimensional carbon nanomaterial, and porphyrins, macrocyclic organic compounds with exceptional electrochemical properties, combine to create effective sensors for detecting various pollutants, including organic pollutants, biological contaminants, and heavy metals. Integrating graphene with porphyrins enhances electron transfer kinetics, selectivity, and stability, making them ideal for environmental monitoring applications. This paper discusses the principles of material selection, sensor design, and fabrication methods for these sensors. It highlights recent advancements in detecting specific pollutants, such as biological contaminants (viruses and bacteria), organic pollutants (pesticides, phenols, and polycyclic aromatic hydrocarbons), and heavy metals (Pb, Hg, and Cd). Additionally, it addresses the challenges and future prospects of these sensors, focusing on improving sensitivity, selectivity, stability, and reproducibility, as well as their integration with portable and wearable devices for on-site monitoring. This review provides valuable insights into the current state and potential applications of porphyrin- and graphene-based electrochemical sensors in pollution management and environmental monitoring.</p></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"3 ","pages":"Article 100017"},"PeriodicalIF":0.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141851739","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}
{"title":"Utilizing recycled pumice and oyster shell waste for cost-effective treatment to mitigate pollutants and toxicity in swine wastewater","authors":"Yung-Chih Yang, Jia-En Cai, Ching Li, Chin-Jou Wang, Chi-Wei Huang","doi":"10.1016/j.scowo.2024.100016","DOIUrl":"10.1016/j.scowo.2024.100016","url":null,"abstract":"<div><p>Despite the abundant nutrients that could be reutilized in swine wastewater, inadequate wastewater management leads to excessive metals and organic matter, causing environmental impacts on aquatic and terrestrial ecosystems. In this study, we recycled waste pumice and oyster shells for the cost-effective treatment and reclamation of swine wastewater. The toxicity of the treated wastewater was assessed using the soil nematode <em>Caenorhabditis elegans</em> and Chinese cabbage <em>Brassica rapa chinensis</em>. Our findings showed significant removal of suspended solids, biochemical oxygen demand, chemical oxygen demand, total phosphorus, and heavy metals (As, Cu, Ni, and Zn) from the swine wastewater after treatment with pumice and oyster shells. Moreover, untreated wastewater significantly inhibited the germination of Chinese cabbage, a trend that was reversed in treated wastewater. Both treated and untreated swine wastewater stimulated the growth of Chinese cabbage. Additionally, untreated swine wastewater exhibited high toxicity to the growth and reproduction of <em>C. elegans</em> after 72 hours of exposure, whereas treated wastewater showed notably reduced toxicity. The recycled pumice and oyster shells significantly induced growth and showed no toxicity in Chinese cabbage. These results suggest that pumice and oyster shell waste can effectively reduce environmental toxicity in raw swine wastewater, offering a cost-effective wastewater treatment solution for small-scale pig farms.</p></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"3 ","pages":"Article 100016"},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141629771","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}