Journal of water process engineering最新文献_第2页

High-efficient U(VI) removal from organic wastewater through polarization electric field enhanced photocatalysis with In2Se3@Ag3PO4 heterojunction

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-30 DOI: 10.1016/j.jwpe.2024.106690

Rongshuo Guo, Linghua Jin, Hongqing Wang, Ruibin Wang, Xinyi Zhang, Ye Zhang

{"title":"High-efficient U(VI) removal from organic wastewater through polarization electric field enhanced photocatalysis with In2Se3@Ag3PO4 heterojunction","authors":"Rongshuo Guo, Linghua Jin, Hongqing Wang, Ruibin Wang, Xinyi Zhang, Ye Zhang","doi":"10.1016/j.jwpe.2024.106690","DOIUrl":"10.1016/j.jwpe.2024.106690","url":null,"abstract":"<div><div>Effective catalytic methods and catalysts for the simultaneous removal of coexisting organic pollutants and heavy metal ions are crucial for sustainable and environmentally friendly water purification. Herein, flower-like S-scheme In<sub>2</sub>Se<sub>3</sub>@Ag<sub>3</sub>PO<sub>4</sub> heterojunctions were synthesized by a two-step hydrothermal method for simultaneous removal of uranium (VI) (U(VI)) and organic pollutants using piezo-photocatalysis. Characterization and theoretical calculations confirmed the formation of the heterojunction, highlighting the significance of In<img>O and Se<img>P bonds in the S-scheme for enhancing photocatalytic reactions by improving charge carrier separation and migration. Additionally, the piezoelectric polarization electric field can also improve photocatalytic performance. The optimized In<sub>2</sub>Se<sub>3</sub>@Ag<sub>3</sub>PO<sub>4</sub>–3 catalyst demonstrated superior piezo-photocatalytic performance in synergistically removing U(VI) and degrading organics, such as tetracycline (TC), bisphenol A (BPA), carbamazepine (CBZ), levofloxacin (LVX), and norfloxacin (NOR). Particularly, in the presence of TC, the catalyst achieved 98.7 % U(VI) removal, and 94.1 % TC degradation within 30 min. This study introduces a promising strategy and a novel heterojunction catalyst with dual functional properties for the simultaneous treatment of wastewater containing organic pollutants and U(VI).</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106690"},"PeriodicalIF":6.3,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing the efficiency of novel PCNF demulsifier for oil-contaminated wastewater treatment through numerical simulation optimization of demulsification mechanism

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-30 DOI: 10.1016/j.jwpe.2024.106626

Meng Yao , Zheng Ju , Zhilin Ran , Ting Chen , Haifeng Pan

{"title":"Enhancing the efficiency of novel PCNF demulsifier for oil-contaminated wastewater treatment through numerical simulation optimization of demulsification mechanism","authors":"Meng Yao , Zheng Ju , Zhilin Ran , Ting Chen , Haifeng Pan","doi":"10.1016/j.jwpe.2024.106626","DOIUrl":"10.1016/j.jwpe.2024.106626","url":null,"abstract":"<div><div>This study used COMSOL simulation software to simulate the aggregation behavior of oil droplets under the action of a direct current electric field. Moreover, in-depth research was conducted on the aggregation process of oil droplets and the dynamic changes of the water oil micro interface. Research has found that the interfacial tension between water and oil is an important factor affecting the deformation of oil droplets. In this work, a new type of magnetic demulsifier (PCNF) was prepared using nano-Fe<sub>3</sub>O<sub>4</sub> as the condensed core, sodium carboxymethyl cellulose (CMC-Na) as the binder, and polyferric sulfate (PFS), and this demulsifier was coupled with an electroflocculation process. The results indicate that the addition of PCNF can effectively reduce the interfacial tension between water and oil, promoting the demulsification process. Compared with traditional flocculants, the combination of electrochemical action and the optimal 2 g/L PCNF dosage provides higher purification efficiency. By introducing calcium chloride, the dosage of PCNF can be reduced. When the dosage is adjusted to 1.5 g PCNF + 0.5 g calcium chloride, the electrolysis time can be shortened from 180 min to 90 min. Under these treatment conditions, the COD in the emulsified oil wastewater is reduced to 46 mg/L and the oil content is reduced to 5.08 mg/L. Economic calculations show that compared to using PCNF alone, this reduction method can reduce operating costs by 39.83 %. This strategy achieves efficient demulsification and oil removal, lowers economic costs, and provides a solid foundation for guiding the development of practical technology.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106626"},"PeriodicalIF":6.3,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CFD modelling and experimental analysis of aromatic amine extraction in a flat sheet supported liquid membrane contactor

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-30 DOI: 10.1016/j.jwpe.2024.106681

Gilles Van Eygen , Emma Lodewijckx , Sean Van Gestel , Nilay Baylan , Anita Buekenhoudt , João A.P. Coutinho , Bart Van der Bruggen , Patricia Luis

{"title":"CFD modelling and experimental analysis of aromatic amine extraction in a flat sheet supported liquid membrane contactor","authors":"Gilles Van Eygen , Emma Lodewijckx , Sean Van Gestel , Nilay Baylan , Anita Buekenhoudt , João A.P. Coutinho , Bart Van der Bruggen , Patricia Luis","doi":"10.1016/j.jwpe.2024.106681","DOIUrl":"10.1016/j.jwpe.2024.106681","url":null,"abstract":"<div><div>Supported liquid membranes (SLMs) using ionic liquids are effective for the extraction of aromatic amines. This experimental study employed a flat sheet SLM contactor with the ionic liquid trihexyltetradecylphosphonium bis(trifluoromethylsulfonyl)imide ([P<sub>6,6,6,14</sub>][N(Tf)<sub>2</sub>]) as the solvent to investigate the separation of <span><math><mi>α</mi></math></span>-methylbenzylamine (MBA) and 1-methyl-3-phenylpropylamine (MPPA) from isopropyl amine (IPA). A detailed process study was conducted to examine the effects of flow rate (5–10 L/h), feed concentration (0.5–2.5 g/L), and feed pH (9–11) on extraction performance. Under standard experimental conditions (10 L/h, 1.0 g/L, pH 10), MBA and MPPA demonstrated high solute fluxes of 2.39 and 5.47 g/(m<sup>2</sup>h), respectively, compared with IPA, which had a solute flux of 0.84 g/(m<sup>2</sup>h). However, after 24 h, the recoveries were relatively low, at 17.9 % for MBA, 32.6 % for MPPA, and 5.2 % for IPA. No significant velocity dependency was observed, with slight variations attributed to minor pH changes, while a linear flux increase was noted for higher feed concentrations. The feed pH had a significant impact on the extraction performance, with higher pH levels resulting in increased solute fluxes and recoveries. To complement the experimental results, computational fluid dynamics (CFD) simulations were employed using COMSOL Multiphysics 5.1. The model demonstrated satisfactory agreement across various conditions, but underestimated fluxes and recoveries at higher pH values. Consequently, a new mass transfer mechanism was proposed to explain the variations observed in the experimental results.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106681"},"PeriodicalIF":6.3,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable electrochemical processes-controlled extraction of valuable metal ions from liquid metal mines

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-30 DOI: 10.1016/j.jwpe.2024.106632

Wanpei Sun , Jiahao Tang , Qi Dang , You Li , Liang Tang

{"title":"Sustainable electrochemical processes-controlled extraction of valuable metal ions from liquid metal mines","authors":"Wanpei Sun , Jiahao Tang , Qi Dang , You Li , Liang Tang","doi":"10.1016/j.jwpe.2024.106632","DOIUrl":"10.1016/j.jwpe.2024.106632","url":null,"abstract":"<div><div>The sustainable extraction of valuable metal ions from liquid metal mines, such as seawater, brine, and wastewater, offers a promising solution to the challenges posed by limited terrestrial mineral resources and their uneven geographical distribution. Electrochemical processes, renowned for their energy efficiency, adaptability to diverse raw materials (enabling direct ion extraction from various water sources), modularity (allowing flexible scaling), and environmental compatibility, are emerging as pivotal technologies in this field. Despite significant advancements, a comprehensive review focusing on the regulation and optimization of these processes remains limited. This review addresses this gap by exploring sustainable electrochemical processes-controlled extraction techniques, including capacitive deionization, pulse electrochemistry, flow batteries, and photoelectrochemical methods. For example, in the extraction of uranium from seawater, the developed half-wave rectification AC chemical method has achieved remarkable results in the extraction of uranium from seawater. The extraction rate of uranium reached 1932 mg g<sup>−1</sup>, which is nine times higher than that of the physical and chemical adsorption method. At the same time, the kinetic speed was increased by four times, and the recovery rate of uranium after desorption reached 96.2 %. We emphasize the key regulatory parameters governing ion extraction performance and provide an in-depth analysis of the advantages and limitations of each method, particularly in extracting high-value metal ions such as lithium, uranium, strontium, and other heavy metals. Finally, the review outlines the current challenges and future prospects of these sustainable electrochemical processes for efficiently recovering valuable metal ions from liquid metal mines.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106632"},"PeriodicalIF":6.3,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction of Bi2MoO6/CdS S-scheme heterojunction for highly efficiency photocatalytic reduction of Cr(VI) under visible light

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-30 DOI: 10.1016/j.jwpe.2024.106693

Yuhang Wu , Jianping He , Ying Liu , Xiaohui Ma , Songbo Li , Guibao Guo , Yiguo Su , Meiting Song

{"title":"Construction of Bi2MoO6/CdS S-scheme heterojunction for highly efficiency photocatalytic reduction of Cr(VI) under visible light","authors":"Yuhang Wu , Jianping He , Ying Liu , Xiaohui Ma , Songbo Li , Guibao Guo , Yiguo Su , Meiting Song","doi":"10.1016/j.jwpe.2024.106693","DOIUrl":"10.1016/j.jwpe.2024.106693","url":null,"abstract":"<div><div>The rising level of chromium pollution presents a substantial risk to both the environment and human well-being, making the elimination of Cr(VI) from water sources an imperative task. In this work, Bi<sub>2</sub>MoO<sub>6</sub>/CdS was synthesized by a simple hydrothermal method. When the mass ratio of Bi<sub>2</sub>MoO<sub>6</sub> to CdS is 1:4 (0.2 g/L), the degradation efficiency of Cr(VI) (20 mg/L, pH = 3) was 100 % after 16 min of visible light irradiation, the reaction kinetic constant (0.2339 min<sup>−1</sup>) was 334.1 and 3.5 times higher than single Bi<sub>2</sub>MoO<sub>6</sub> and CdS. The photocatalytic activity is almost unchanged after five cycles (<4 %). Furthermore, the S-scheme pathway is proposed by free radical capture experiments, Electron Paramagnetic Resonance (EPR) detection and density functional theory (DFT) calculations. The S-scheme Bi<sub>2</sub>MoO<sub>6</sub>/CdS heterojunction promotes the separation of electron-hole pairs and accelerate electron transfer. This study provides a novel strategy for high-efficiency Cr(VI) reduction.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106693"},"PeriodicalIF":6.3,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phytotreatment of tofu effluent using water lettuce (Pistia stratiotes) and potential of biogas production from resultant biomass

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-30 DOI: 10.1016/j.jwpe.2024.106672

Setyo Budi Kurniawan , Muhammad Fauzul Imron , Rikky Ramadhan Mustofa , Dhuroton Najiya , Nor Sakinah Mohd Said , Junaidah Buhari , Hajjar Hartini Wan Jusoh , Azimah Ismail

{"title":"Phytotreatment of tofu effluent using water lettuce (Pistia stratiotes) and potential of biogas production from resultant biomass","authors":"Setyo Budi Kurniawan , Muhammad Fauzul Imron , Rikky Ramadhan Mustofa , Dhuroton Najiya , Nor Sakinah Mohd Said , Junaidah Buhari , Hajjar Hartini Wan Jusoh , Azimah Ismail","doi":"10.1016/j.jwpe.2024.106672","DOIUrl":"10.1016/j.jwpe.2024.106672","url":null,"abstract":"<div><div>Tofu effluent contains a high concentration of organic materials, nutrients, suspended solids and is also low in pH. This research was aimed at applying phytotreatment using floating plant species of <em>Pistia stratiotes</em> to polish tofu effluent before final discharge into water bodies while also producing biogas from the resultant biomass after treatment. A range-finding test (RFT) was conducted to determine the initial concentration to be treated and resulted in 10 % tofu effluent. Phytotreatment was conducted for a period of 14 days, focusing on the removal of organic matter and nutrient contents. After 14 days of treatment, <em>P. stratiotes</em> were able to remove total suspended solids (TSS) by 88 %, ammonia by 42.3 %, phosphate by 50 %, chemical oxygen demand (COD) by 84 %, and biological oxygen demand (BOD) by 95 %, significantly higher as compared to control. Phytotreatment was able to stabilize pH to a neutral value, and <em>P. stratiotes</em> were able to transfer oxygen from air to the rhizosphere area. The maximum daily production of biogas using the plant's biomass was higher as compared to the control; however, the overall biogas accumulation was significantly lower during the 45 days of observation. Further biomass pretreatment was suggested before digestion to obtain higher biogas production since the cellulose, hemicellulose, and lignin content inside the plant biomass were subjected to being hardly degraded by the anaerobic microorganisms.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106672"},"PeriodicalIF":6.3,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Utilizing Fe-C and PbO2 modified electrodes for the electrochemical treatment of pickled vegetable wastewater

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-30 DOI: 10.1016/j.jwpe.2024.106534

Likun Huang , Xinyu Feng , Guangzhi Wang , Dandan Wang , Zhe Li , Xiyu Sun , Huixian Wang , Jingyi Zhang

{"title":"Utilizing Fe-C and PbO2 modified electrodes for the electrochemical treatment of pickled vegetable wastewater","authors":"Likun Huang , Xinyu Feng , Guangzhi Wang , Dandan Wang , Zhe Li , Xiyu Sun , Huixian Wang , Jingyi Zhang","doi":"10.1016/j.jwpe.2024.106534","DOIUrl":"10.1016/j.jwpe.2024.106534","url":null,"abstract":"<div><div>The objective of this study was to enhance the treatment efficiency of chemical oxygen demand (COD), total phosphorus (TP), and ammonia nitrogen (NH<sub>4</sub><sup>+</sup>-N) in pickled vegetable wastewater, as well as to improve the electrode's stability. Iron carbon micro-electrolysis (Fe<img>C) was employed for the pretreatment of wastewater, followed by a secondary treatment utilizing PbO<sub>2</sub> modified electrodes in the electrochemical advanced treatment process. The optimal operational conditions for Iron‑carbon micro-electrolysis (Fe/C = 1.2:1, volume ratio of iron to water = 1:1, pH = 5.4, reaction time = 4 min). For the electrochemical method, the optimal operational conditions included a plate spacing of 2.00 cm, a degradation temperature of 65 °C, a current density of 50 mA/cm<sup>2</sup>, and a pH of 6. The optimal doping ratio of La in the Ti/SnO<sub>2</sub>-Sb<sub>2</sub>O<sub>5</sub>/La-PbO<sub>2</sub> modified anode was found to be 10 mmol/L, with a theoretical lifespan of 5670 h. Under these conditions, the removal rates for TP, COD, NH<sub>4</sub><sup>+</sup>-N, and salinity (as Cl<sup>−</sup>) from the pickled vegetable wastewater were 96.67 %, 70.03 %, 79.88 %, and 6.09 %, respectively.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106534"},"PeriodicalIF":6.3,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction of novel quaternary ammonium nitroxy-hybrid rhenium adsorbent system with dual mechanisms and separation research from rhenium (VII)/copper (II)

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-30 DOI: 10.1016/j.jwpe.2024.106656

Qian Cheng , Enming Luo , Lilin Gan , Wenzheng Luo , Dingfeng Yang , Hongquan Fu , Shuo Li

{"title":"Construction of novel quaternary ammonium nitroxy-hybrid rhenium adsorbent system with dual mechanisms and separation research from rhenium (VII)/copper (II)","authors":"Qian Cheng , Enming Luo , Lilin Gan , Wenzheng Luo , Dingfeng Yang , Hongquan Fu , Shuo Li","doi":"10.1016/j.jwpe.2024.106656","DOIUrl":"10.1016/j.jwpe.2024.106656","url":null,"abstract":"<div><div>Rhenium (Re) is vital in the medicinal and energy sectors. However, its scarcity and the co-occurrence with copper (Cu) present ongoing challenges in developing adsorbents with high adsorption capacity and selectivity. Herein, a quaternary ammonium nitroxy-hybrid/polystyrene microsphere separation system (Tetra-DE-CMPS, Tetra-N-ACE-CMPS, Tetra-2N-ACE-CMPS) was designed for selective Re(VII)/Cu(II) separation. The results indicated that in an acidic pH range (2–6), Tetra-DE-CMPS exhibited a Re(VII) adsorption capacity of up to 734.82 mg<strong>·</strong>g<sup>−1</sup>, which could be reused at least 3 times. For selective separation of Re(VII)/Cu(II) mixtures, the separation factor Sel<sub>Re/Cu</sub> could exceed 3.77; for Tetra-2N-ACE-CMPS, the Sel<sub>Re/Cu</sub> value was 4.72. The adsorption mechanism between the adsorbents and Re(VII) was mainly electrostatic interaction and oxidation-reduction reaction. This novel adsorption system provided a brand-new perspective (nitrogen oxide hybridization and spatial effects) to explain outstanding Re adsorption capacity, excellent Re(VII)/Cu(II) selective separation ability, and a new reactivity mechanism for the design of Re(VII) adsorbents.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106656"},"PeriodicalIF":6.3,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simultaneous extraction and determination of Norfloxacin and Lomefloxacin based on magnetic dual-template molecularly imprinted polymer in water samples under multivariate optimization

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-30 DOI: 10.1016/j.jwpe.2024.106657

Shadi Oshaghi , Raana Malekpour

{"title":"Simultaneous extraction and determination of Norfloxacin and Lomefloxacin based on magnetic dual-template molecularly imprinted polymer in water samples under multivariate optimization","authors":"Shadi Oshaghi , Raana Malekpour","doi":"10.1016/j.jwpe.2024.106657","DOIUrl":"10.1016/j.jwpe.2024.106657","url":null,"abstract":"<div><div>In the current investigation, we developed a pretreatment strategy for samples comprising Norfloxacin (NOR) and Lomefloxacin (LOM) using the molecularly imprinting technique. NOR and LOM were extracted from water samples using a magnetic dual-template molecularly imprinted polymer (Fe<sub>3</sub>O<sub>4</sub>@NH<sub>2</sub>@MIP), which was synthesized, and studied by SEM and TEM. A central composite design optimized the main experimental variables, such as pH, Fe<sub>3</sub>O<sub>4</sub>@NH<sub>2</sub>@MIP, ionic strength, contact time, and eluent solvent. The study determined that a pH of 4, 15 mg of Fe<sub>3</sub>O<sub>4</sub>@NH<sub>2</sub>@MIP, 2 % ionic strength, 4 min of contact time, and 165 μL of eluent solvent were the optimal values of extraction parameters. With determination coefficients (R<sup>2</sup>) over 0.99, the calibration curves showed good linearity within the range of 2–500 ng mL<sup>−1</sup> under optimal circumstances. The results showed that the limits of detection (LODs) for LOM and NOR were 0.5 and 0.4 ng mL<sup>−1</sup>, respectively. Additionally, 1.33 and 1.67 ng mL<sup>−1</sup> were obtained as the limits of quantification (LOQs) for NOR and LOM, respectively. Additionally, it was discovered that the enrichment factors for NOR and LOM were 69.25 and 66.83, respectively. Fe<sub>3</sub>O<sub>4</sub>@NH<sub>2</sub>@MIP has a high adsorption capability (41.36 and 38.95 mg g<sup>−1</sup> for NOR and LOM, respectively) and positive imprinting effects (4.35 and 4.30 for NOR and LOM, respectively), according to the findings of the adsorption and enrichment investigation. Furthermore, the recoveries (89.4 % - 94.3 %) for the spiked samples were satisfactory, with relative standard deviations ≤4.75.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106657"},"PeriodicalIF":6.3,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Water process/treatment by a S-scheme Fe2O3/TiO2 heterojunction photocatalyst for excellent antibiotic degradation/CO2 reduction/H2 production; process optimization and mechanistic insights

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-30 DOI: 10.1016/j.jwpe.2024.106552

Rou Cai , Weidong Li , Mohamed Shaban , Azher M. Abed , Sherzod Abdullaev , Ibrahim Mahariq , Yasser Elmasry , Amr S. Abouzied , Albara Ibrahim Alrawashdeh

{"title":"Water process/treatment by a S-scheme Fe2O3/TiO2 heterojunction photocatalyst for excellent antibiotic degradation/CO2 reduction/H2 production; process optimization and mechanistic insights","authors":"Rou Cai , Weidong Li , Mohamed Shaban , Azher M. Abed , Sherzod Abdullaev , Ibrahim Mahariq , Yasser Elmasry , Amr S. Abouzied , Albara Ibrahim Alrawashdeh","doi":"10.1016/j.jwpe.2024.106552","DOIUrl":"10.1016/j.jwpe.2024.106552","url":null,"abstract":"<div><div>A facile synthesis approach was employed to fabricate a binary Fe<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> nanocomposite (FeTi4-400) for enhanced photocatalytic hydrogen (H<sub>2</sub>) production, cephalexin degradation and CO<sub>2</sub> reduction under visible light irradiation. Compared to pristine TiO<sub>2</sub>, FeTi4-400 exhibited improved visible light absorption and promoted charge carrier separation, leading to increased H<sub>2</sub> production rate and CO<sub>2</sub> conversion into CH<sub>4</sub> and CO. This improvement can be attributed to the formation of an S-scheme heterojunction, along with the desirable properties of FeTi4-400, including visible light activity, high surface area, and strong CO<sub>2</sub> adsorption. The photocatalyst achieved a maximum H<sub>2</sub> production rate of 649 μmol/g·h<sup>−1</sup>, exceeding that of pure TiO<sub>2</sub>. Similarly, the highest CO production rate of 16.44 μmol/g·h<sup>−1</sup> was attained with FeTi4-400. Furthermore, FeTi4-400 achieved excellent cephalexin degradation (96 %) under optimal conditions, with a degradation rate constant of 0.01 min<sup>−1</sup>. A plausible cephalexin degradation pathway over FeTi4-400 is proposed. Transient photocurrent measurements and EIS analysis corroborated a significant enhancement in photocatalytic activity for FeTi4-400, attributed to the efficient separation of photogenerated electron-hole pairs. Stability studies demonstrated consistent cephalexin degradation by FeTi4-400 over five consecutive cycles without noticeable photocatalyst deactivation. This work presents a novel strategy for fabricating low-cost, efficient, and readily synthesized nanomaterials for applications in solar energy conversion and environmental remediation.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106552"},"PeriodicalIF":6.3,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0