ACS Sustainable Resource Management最新文献

{"title":"Magnesium Recovery from Nanofiltration Brine by Membrane Distillation Crystallization.","authors":"Asif Saud, Aamer Ali, Cejna Anna Quist-Jensen","doi":"10.1021/acssusresmgt.5c00219","DOIUrl":"10.1021/acssusresmgt.5c00219","url":null,"abstract":"<p><p>Membrane distillation crystallization (MDCr) is gaining recognition as a sustainable and cost-effective method for treating hypersaline brine. The current study explores magnesium sulfate (MgSO₄) crystallization by using MDCr from synthetic nanofiltration (NF) brine. The study evaluates three feed temperature conditions (41.8 °C, 54.9 °C, and 64.5 °C), along with the corresponding permeate temperatures (19.9 °C, 23.2 °C, and 26.2 °C) and flow rates (1.3 and 0.7 L/min). The tested conditions revealed that temperature impacts the MDCr performance and MgSO₄ crystallization more effectively than the flow rate. The presence of other ions (Na⁺, K⁺, and Cl^‑) decreases the solubility of MgSO₄ (compared with the theoretical solubility at the tested temperature) and increases the tendency of co-crystallization with NaCl, which poses a significant challenge in the final separation stage. The examined process conditions (feed temperature 64.5 ± 0.5 and flow rate 1.3 L/min) successfully delay the crystallization of MgSO₄, toward a higher water recovery factor (65.98 %), owing to the higher solubility of MgSO₄ at higher temperatures, which minimizes the extent of co-crystallization. The recovered crystals (a mixture of NaCl and MgSO₄) are then separated by selectively dissolving NaCl in a saturated solution of MgSO₄. No compromise with the permeate purity (<5 μm/cm) was observed under all tested conditions.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 9","pages":"1709-1718"},"PeriodicalIF":0.0,"publicationDate":"2025-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12481720/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145208904","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}

{"title":"Life Cycle Assessment of Mo, V, Ni, and Co Recovery from Spent Catalyst","authors":"Riina Aromaa-Stubb,&nbsp;Marja Rinne and Mari Lundström*,&nbsp;","doi":"10.1021/acssusresmgt.5c00243","DOIUrl":"https://doi.org/10.1021/acssusresmgt.5c00243","url":null,"abstract":"<p >MoCo/γ-Al₂O₃ catalysts used in petroleum refining are commonly recycled to recover Mo and V; however, the contained Ni and Co are not typically recovered as purified products. The goal of this study was to evaluate the environmental impacts of recycling a spent catalyst and recovering all of the valuable metals: Mo as MoO₃, V as V₂O₅, Ni as Ni(OH)₂, and Co as Co(OH)₂. Process simulation was used to study the inputs and outputs of the system, and the gathered process data inventory was used to perform life cycle assessment to determine the environmental impacts. The results show that when the content of Mo, V, Ni, and Co in the spent catalyst is high enough, the potential environmental impacts of the recycling system are lower than those of the primary production of equivalent products. For example, the global warming of the recycling systems decreases from 250% of the primary impacts (with 6 wt % metal content) to 53% (with 29 wt % metal content). The process hotspots in the recycling process were found to be mainly in the production of the chemicals and utilities consumed by the process. Particularly NH₃, electricity, HCl, NaOH, and H₂SO₄ increased the environmental impacts. In addition, in the recycling process direct gaseous emissions were generated, which contributed substantially to global warming and acidification.</p><p >The environmental impacts of MoCo/γ-Al₂O₃ catalyst recycling are evaluated using process simulation-based life cycle assessment with several uncertainty and sensitivity analysis methods to determine the influence of simulation parameter uncertainty.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 8","pages":"1508–1516"},"PeriodicalIF":0.0,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acssusresmgt.5c00243","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144906685","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}

{"title":"Comparative Study of Biocarbon-Supported Iron Nanoparticle Composites (nZVI@BC) Synthesized by Carbothermal Versus Borohydride Reductions for Heavy Metal Removal","authors":"Chathuri Peiris,&nbsp;Jared Pish,&nbsp;Tharindu N. Karunaratne,&nbsp;R.M. Oshani Nayanathara,&nbsp;Sameera R. Gunatilake*,&nbsp;Jilei Zhang,&nbsp;Dinesh Mohan,&nbsp;Charles U. Pittman Jr.,&nbsp;Xuefeng Zhang* and Todd E. Mlsna*,&nbsp;","doi":"10.1021/acssusresmgt.5c00250","DOIUrl":"https://doi.org/10.1021/acssusresmgt.5c00250","url":null,"abstract":"<p >Biocarbon (BC) has been widely employed as a support to disperse nanoscale zerovalent iron (nZVI) particles to prevent their aggregation and rapid oxygen passivation. Here, we compare the chemical stability of nanozerovalent iron composites (nZVI@BC) made by liquid-phase reduction (LPR) versus carbothermal reduction (CTR). In the LPR route, Fe³⁺ was impregnated onto demineralized bamboo-BC formed at 600 °C, followed by NaBH₄ reduction under N_2. The CTR method employed aqueous FeCl₂-impregnated bamboo-BC, which was dried and carbonized from 50 to 1000 °C under N₂. nZVI@BC’s chemical stabilities were compared in air, water, and soil. Both routes produced Fe⁰, confirmed by the XRD peak at 2θ = 44.6°. Fresh LPR-nZVI@BC vs. CTR-nZVI@BC exhibited efficient Cu²⁺uptakes of 32 mg/g (212 mg/g Fe⁰) and 40 mg/g (266 mg/g Fe⁰) in 30 min, respectively, via Fe⁰ reduction of Cu²⁺to Cu⁰. Exposing LPR-nZVI@BC samples to water for 4 h led to the complete disappearance of the Fe⁰ XRD peak and the appearance of the Fe₃O₄ peak at 2θ = 35.0°, reducing Cu²⁺ uptake by 98%. In contrast, CTR-nZVI@BC only experienced a 51% drop in capacity due to the presence of a layered graphene sheet shell, preventing Fe⁰ from rapid oxidation. No Fe₃O₄ XRD peaks were observed in CTR-nZVI@BC after 7 days of air and soil exposure, unlike in LPR samples. Resistance to passivation in air, water, and soil makes the CTR a promising synthetic route to nZVI@BC.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 8","pages":"1540–1550"},"PeriodicalIF":0.0,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144906828","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":"Uncertainty Propagation and Input Sensitivity in Life Cycle Assessment: An Application to Phase Change Materials","authors":"Humberto Santos*,&nbsp; and ,&nbsp;Silvia Guillén-Lambea,&nbsp;","doi":"10.1021/acssusresmgt.5c00298","DOIUrl":"https://doi.org/10.1021/acssusresmgt.5c00298","url":null,"abstract":"<p >Global and local sensitivity analyses are essential for identifying key parameters in life cycle assessment models. However, due to limited information on parameter uncertainty, they are often overlooked. This paper’s objective is to address this gap by proposing a methodological framework for defining input sensitivity, for midpoint and end point indicators, and a quantitative approach for determining input uncertainties. Applied to a case study on xylitol production as a phase change material, the methodology uses Monte Carlo for uncertainty propagation and Python’s SALib to calculate Sobol indices. Results show a 2% relative error in midpoint indicators, aligning with pedigree matrix methods. While accuracy depends on choosing the appropriate distribution function, both global and local sensitivity analyses showed consistent outcomes. This structured, user-friendly approach offers decision-makers a simplified yet effective way to prioritize inputs, either by verifying multiple indicators individually or focusing on damage-oriented indicators. Future studies could refine database coefficients and explore their influence on overall uncertainty, as well as the nonlinearity of the model if the parameters are correlated, offering opportunities to enhance accuracy.</p><p >The results are useful for targeting sensitive inputs to reduce the environmental impacts in the production of bio-based phase change materials.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 8","pages":"1593–1604"},"PeriodicalIF":0.0,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acssusresmgt.5c00298","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144906817","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}

{"title":"Mechanochemical Destruction of PFAS: Critical Effects of Co-Milling Agents","authors":"Mohamed Ammar,&nbsp;Sherif Ashraf,&nbsp;Julia Farias,&nbsp;Clinton Williams and Jonas Baltrusaitis*,&nbsp;","doi":"10.1021/acssusresmgt.5c00194","DOIUrl":"https://doi.org/10.1021/acssusresmgt.5c00194","url":null,"abstract":"<p >This perspective explores the emerging field of mechanochemical degradation of per- and polyfluoroalkyl substances (PFAS) as an innovative, scalable, and sustainable approach. The degradation of PFAS, particularly their robust carbon–fluorine bonds, remains a significant challenge. Mechanochemical methods utilizing co-milling agents can facilitate the destruction of PFAS compounds. Here, we highlight the importance of reported co-milling agents, such as potassium hydroxide (KOH), silica (SiO₂), alumina (Al₂O₃), sodium persulfate (PS), and lanthanum oxide (La₂O₃). Each co-milling agent demonstrates varying degrees of effectiveness in PFAS degradation. Mechanochemical degradation in the presence of KOH alone has strong degradation capabilities (99% after 3 h, 275 rpm) but also produces hazardous byproducts such as potassium fluoride (KF) that present waste management and safety concerns. In contrast, SiO₂ and Al₂O₃ exhibit slower PFAS degradation rates (42.2 and 98% degradation efficiency, 2 h, 350 rpm) and require other additives, but yield product mixtures that have improved sustainability. Studies have shown a near-complete degradation (99.95–100%) of perfluoroalkyl sulfonates (PFSAs), which entail stable Si–F bonds, by using co-milling agents, such as SiO₂, and full degradation of PFOS, PFOA, PFHxS, and PFBS using La₂O₃, through electron donation to the carbon atom, which destabilizes the C–F bond. Mechanistic stages of PFAS degradation, such as mechanical activation, bond cleavage, mineralization, and the role of protonation, electron transfer, and the formation of stable bonds in the degradation process, are emphasized. Further research to refine and optimize mechanochemical processes, with a focus on novel co-milling agents and synergistic approaches, can enhance PFAS remediation and address global environmental concerns.</p><p >This review examines mechanochemical PFAS degradation using co-milling agents, highlighting their potential as scalable, low-energy solutions for remediating persistent pollutants and reducing environmental contamination in soils and wastes.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 8","pages":"1340–1352"},"PeriodicalIF":0.0,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acssusresmgt.5c00194","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144906754","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}

{"title":"Toward Reducing CO2 Emissions from Ultra-Pure Semiconductor Gases: A Case Study of TEOS Purification Process Optimization and Renewable Feedstock Utilization","authors":"Takehiro Yamaki,&nbsp;Noriyuki Uchida*,&nbsp;Thuy T. H. Nguyen,&nbsp;Soh Takemoto,&nbsp;Naoya Okada,&nbsp;Hiroki Hatayama,&nbsp;Masanaga Fukasawa,&nbsp;Shinji Migita and Sho Kataoka*,&nbsp;","doi":"10.1021/acssusresmgt.5c00210","DOIUrl":"https://doi.org/10.1021/acssusresmgt.5c00210","url":null,"abstract":"<p >This study evaluated the CO₂ emissions associated with the ultra-pure tetraethyl orthosilicate (TEOS), a typical raw material for the deposition of silicon dioxide films on silicon wafers via plasma-enhanced chemical vapor deposition (PECVD). First, we designed a purification process to remove organic impurities, metal contaminants, and particles from TEOS synthesized from metallic silicon. Simulation models were developed to assess the CO₂ emissions of these processes. Among the three purification steps, metal component removal led to the highest CO₂ emissions, and the TEOS recovery ratio was a key parameter for determining the CO₂ emissions. Second, we evaluated the effect of ultra-pure TEOS on CO₂ emissions from the PECVD process. The total CO₂ emissions, including direct emissions, purification-derived emissions, and material-derived emissions, was 23.6 g-CO₂ for deposition on a 300 mm ϕ silicon wafer. Because semiconductor manufacturing requires materials with ultra-high purity, reducing CO₂ emissions by improving the purification efficiency remains challenging. Finally, we explored the potential to reduce CO₂ emissions by replacing the conventional TEOS feedstock (metallic silicon) with a renewable feedstock (rice husk). Modeling indicates that this alternative feedstock could lower CO₂ emissions for depositing on a 300 mm ϕ silicon wafer by 38%, thereby enhancing PECVD sustainability.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 8","pages":"1458–1465"},"PeriodicalIF":0.0,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144906749","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":"Deproteinization Controlled Phase Selection in Calcium Phosphate Biomaterials Derived from Tenualosa ilisha Fish Scale Waste: A Sustainable Valorization Approach","authors":"Mashrafi Bin Mobarak*,&nbsp;Shahriar Atik Fahim,&nbsp;Md Sohag Hossain,&nbsp;Fariha Chowdhury,&nbsp;Nazmul Islam Tanvir,&nbsp;Umme Sarmeen Akhtar and Samina Ahmed*,&nbsp;","doi":"10.1021/acssusresmgt.5c00244","DOIUrl":"https://doi.org/10.1021/acssusresmgt.5c00244","url":null,"abstract":"<p >The sustainable management of fishery waste is a growing environmental concern, with fish scales offering promising sources for high-value biomaterials. In this study, calcium phosphate biomaterials (CPBs) were selectively synthesized by varying the chemical treatment of <i>Tenualosa ilisha</i> fish scales. Single-step acid (1 N HCl) or base (1 N NaOH) deproteinization followed by calcination at 1000 °C yielded the magnesium-containing β-tricalcium phosphate (β-TCP, whitlockite) phase, confirmed through X-ray diffraction (XRD) analysis. In contrast, a sequential acid–base treatment led to the formation of highly crystalline monoclinic hydroxyapatite (HAp). Detailed crystallographic analysis revealed superior crystallinity, larger crystallite size, and lower lattice strain for the HAp phase compared to those of the whitlockite phase. Crystallite sizes of 52, 48, and 118 nm were estimated using the Scherrer equation for samples prepared by the acid, base, and acid–base methods, respectively. Surface compositional analysis by X-ray photoelectron spectroscopy (XPS) further corroborated the integration of Mg into the β-TCP lattice structure. A clear distinction was evident in the Fourier transform infrared spectroscopy (FTIR) spectra between the two phases, where β-TCP contained bands for the P₂O₇^4– group caused by incomplete transformation of β-TCP from TCP and/or high temperature treatment. Differences in PO₄^3– Raman band positions and splitting of the symmetric P–O stretching band for the whitlockite phase further highlighted structural distinctions. Morphological characterization in terms of transmission electron microscopy (TEM) and field emission scanning electron microscopy (FESEM) demonstrated finer, smaller, and more uniform particle formation for the HAp phase. FESEM-based energy dispersive X-ray spectroscopy (EDX) analysis revealed that all samples were Ca-deficient, with Ca/P ratios (0.92-1.38) consistently lower than theoretical values. Cell viability studies indicated excellent biocompatibility (&gt;95% viability) in all samples. Mechanistically, the phase formation is proposed to follow pH-dependent ionic dynamics, where single-step treatment enhanced Mg incorporation and favors β-TCP formation, while sequential acid–base processing likely redistributes ions and stabilizes phosphate, promoting HAp crystallization. This phase-selective approach provides a simple, waste-derived pathway to tailor CPBs for diverse biomedical and environmental applications.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 8","pages":"1528–1539"},"PeriodicalIF":0.0,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144906750","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":"Continuous Wet Air Oxidation of the Hydrothermal Liquefaction Aqueous Product from Various Wet Wastes","authors":"Peipei Wang,&nbsp;Min Soo Kim,&nbsp;Pavlo Bohutskyi,&nbsp;Juliano Souza dos Passos,&nbsp;James Collett,&nbsp;Zachary Johnson,&nbsp;Senthil Subramaniam,&nbsp;Uriah J. Kilgore,&nbsp;Samuel P. Fox,&nbsp;Dylan J. Cronin,&nbsp;Andrew J. Schmidt,&nbsp;Mike Thorson and Huamin Wang*,&nbsp;","doi":"10.1021/acssusresmgt.5c00249","DOIUrl":"https://doi.org/10.1021/acssusresmgt.5c00249","url":null,"abstract":"<p >Wet air oxidation (WAO) treats waste streams by converting pollutants into benign substances. It can process the aqueous product from the hydrothermal liquefaction (HTL-AP) of wet wastes. We studied the WAO of HTL-AP from four wet wastes with different chemical oxygen demand (COD) levels, through continuous testing under various conditions. We screened the reaction parameters necessary for substantial COD reduction &gt;90%. Alcohols and ketones in the HTL-AP rapidly oxidized to acetic acid through aldehyde intermediates, while acetic acid, other carboxylic acids, and phenols oxidized relatively slowly. Light N-containing compounds exhibit a change in concentration only after the whole sample reaches an 80% COD reduction, indicating their refractory nature under applied conditions. Energy released in the WAO reaction was calculated. Anaerobic toxicity assay demonstrated that the WAO-treated sample exhibited a 23% enhancement in reaction kinetics, indicating decreased inhibitory effects compared to untreated HTL-AP. These findings provide insights into designing effective WAO processes for valorizing HTL aqueous products, addressing key barriers to HTL process commercialization.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 8","pages":"1562–1570"},"PeriodicalIF":0.0,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144906682","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":"Smart pH Indicators for Sustainable Applications: Mechanistic Insights into Reusable and Leak-Resistant Anthocyanin-Loaded Cellulose Acetate Beads","authors":"Konala Akhila,&nbsp;Dakuri Ramakanth,&nbsp;Lakshman Rao Lingala and Kirtiraj K. Gaikwad*,&nbsp;","doi":"10.1021/acssusresmgt.4c00475","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00475","url":null,"abstract":"<p >The usage of intelligent indicators in predicting and communicating dynamic shelf life of foods to consumers is unrivalled. <i>Clitoria ternatea</i> anthocyanins can change color upon exposure to different pH conditions but are unstable when applied directly or in film form. To address this issue, we have encapsulated anthocyanins extracted from <i>C. ternatea</i> in cellulose acetate (CA) and formed beads via precipitation and the phase inversion method. The total anthocyanin content and encapsulation efficiency were calculated as 6.95 mg Cyanidin-3-glucoside equivalent/g of dry flowers and 99.50%, respectively. Later, effects of <i>C. ternatea-</i>loaded CA beads on physical, structural, thermal, and pH-sensitive properties were analyzed. An attempt was made to represent the mechanism of bead formation in gelling bath with the help of the Marangoni effect of hydrodynamic instability. Attenuated total reflectance infrared spectroscopy revealed that there are no inter-/intramolecular interaction upon loading of anthocyanins to CA beads. ACN-CA beads are pH-sensitive; when exposed to pH 3 and 4, beads have shown violet to blue color, and at pH 11 and 12, yellow shade was visible. The beads do not release anthocyanins into water medium owing to the asymmetric structure formed during precipitation and osmotic pressure differences. Our results suggest that the developed beads can efficiently replace the existing pH- sensitive intelligent packaging indicators in food sector and offer excellent reusability.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 8","pages":"1353–1362"},"PeriodicalIF":0.0,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144906772","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":"Production of Bio-Hydroxyapatite from Devilfish (Loricariidae) Waste by Controlled Calcination: Analysis of Physicochemical Properties","authors":"Hilda G. Cisneros-Ontiveros*,&nbsp;Nahum A. Medellín-Castillo,&nbsp;Alfredo I. Flores-Rojas,&nbsp;Luis F. Zubieta-Otero* and Mario E. Rodríguez-García,&nbsp;","doi":"10.1021/acssusresmgt.5c00233","DOIUrl":"https://doi.org/10.1021/acssusresmgt.5c00233","url":null,"abstract":"<p >This study presents a circular economy approach for producing bio-hydroxyapatite (Bio-HAp) from devilfish (Loricariidae) waste through controlled calcination. The process addresses the environmental challenge of devilfish overpopulation while valorizing biowaste by converting it into a high added value biomaterial. Devilfish bones, composed primarily of calcium phosphates, were calcined to synthesize Bio-HAp. The physicochemical properties of the resulting Bio-HAp were systematically analyzed using morphological, compositional, structural, and vibrational characterization techniques. Scanning electron microscopy (SEM) revealed microstructural features, while X-ray diffraction (XRD) identified crystalline phases, confirming the formation of hydroxyapatite (HAp). Fourier transform infrared spectroscopy (FTIR) was employed to elucidate vibrational properties and verify the chemical structure of the synthesized HAp. Results demonstrated that Bio-HAp derived from devilfish waste exhibits high crystallinity, near stoichiometric Ca/P ratio (1.67) and higher bioactivity, properties characteristic of high purity HAp. This work underscores the potential of biowaste as a sustainable resource for biomaterials and highlights the integration of circular economy principles in materials science to develop eco-friendly, economically viable solutions. Controlled calcination effectively converts devilfish waste into valuable HAp, paving the way for innovative applications in biomedicine, environmental remediation, and industry.</p><p >The conversion of invasive devilfish bone waste into bio-hydroxyapatite presents a sustainable strategy to mitigate ecological damage while yielding high-value biomaterials for biomedical and environmental applications through controlled calcination.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 8","pages":"1497–1507"},"PeriodicalIF":0.0,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acssusresmgt.5c00233","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144906683","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}