Journal of water process engineering最新文献

{"title":"Electro living membrane bioreactor for efficient and sustainable treatment of textile wastewater and enhanced fouling control","authors":"Sameh Jallouli ,&nbsp;Mary Vermi Aizza Corpuz ,&nbsp;Antonio Buonerba ,&nbsp;Tiziano Zarra ,&nbsp;Vincenzo Belgiorno ,&nbsp;Mohamed Ksibi ,&nbsp;Vincenzo Naddeo","doi":"10.1016/j.jwpe.2025.107523","DOIUrl":"10.1016/j.jwpe.2025.107523","url":null,"abstract":"<div><div>The effects of integrating electrochemical processes into the innovative living membrane bioreactors (LMBR) for treating synthetic textile wastewater were examined in this study. The efficacy of electrochemical-enhanced-LMBR (e-LMBR) was assessed using wastewater containing high COD levels (1000 mg/L) and reactive (25 mg/L) and direct (25 mg/L) dyes as pollutants.</div><div>The performance of the e-LMBR was compared with that of the LMBR, which had previously demonstrated high COD and DOC removal efficiencies. Both experimental configurations achieved similarly high removal efficiencies higher than 96 %.</div><div>Noteworthy, the e-LMBR exhibited a removal efficiency of humic substances of 75 ± 17 %: an average value of 25 % higher than that for LMBR.</div><div>Notably, the electrochemical processes substantially improved the pollutant removals: the e-LMBR demonstrated higher reductions in sulfate, nitrate‑nitrogen (NO₃⁻-N), and phosphate-phosphorous (PO₄³⁻-P) concentrations than the corresponding LMBR. Average ammonia, phosphates, and sulphates removal efficiencies were 99 ± 1 %, 86 ± 3 % and 55 ± 8 %, respectively, for the e-LMBR.</div><div>Besides, the direct and reactive dye concentrations in the e-LMBR effluents were approximately reduced to 2.9 ± 0.5 mg/L and 2.1 ± 1.7 mg/L, corresponding to removal efficiencies of 87.5 ± 5.1 % and 91.4 ± 4.4 %, respectively.</div><div>Finally, e-LMBR showed a 77 % lower membrane fouling rate and lower concentrations of fouling substances in the reactor compared to the LMBR.</div><div>Incorporating electrochemical processes into a living membrane bioreactor presents a cost-effective and highly efficient solution for treating textile wastewater.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"72 ","pages":"Article 107523"},"PeriodicalIF":6.3,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681340","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}

{"title":"Synergistic photodegradation of Remazol Black B dye using sulfur-doped g-C3N4/rGO composite: The dual role of thiourea","authors":"Adi Darmawan,&nbsp;Daniel Ananta Batu Bara,&nbsp;Muhibbudin Al Fahmi,&nbsp;Hasan Muhtar,&nbsp;Damar Nurwahyu Bima","doi":"10.1016/j.jwpe.2025.107545","DOIUrl":"10.1016/j.jwpe.2025.107545","url":null,"abstract":"<div><div>The increasing contamination of azo dye compounds, such as Remazol Black B (RBB), in aquatic environments is a pressing issue. Therefore, developing efficient and environmentally safe photocatalysts is crucial. In this study, we successfully fabricated a sulfur-doped g-C₃N₄/rGO composite using a one-step facile hydrothermal method and investigated its photocatalytic activity in degrading RBB under ultraviolet (UV) light irradiation. Moreover, this metal-free photocatalyst offers a promising solution by minimizing potential environmental toxicity. Our results demonstrate the dual role of thiourea in introducing sulfur and reducing GO in the S-g-C₃N₄/rGO composite. X-ray diffraction (XRD) analysis revealed that sulfur incorporation enhances the crystallinity of the composites. Brunauer-Emmett-Teller (BET) measurements demonstrate that the S-g-C₃N₄/rGO-5 composite achieves a significantly higher specific surface area of 114.34 m²g⁻¹, supporting its enhanced photocatalytic performance. The introduction of sulfur and rGO into g-C₃N₄ enhances light absorption efficiency, narrowing the band gap from 2.71 eV for pristine g-C₃N₄ to 2.07 eV for S-g-C₃N₄/rGO-5. Furthermore, Photoluminescence (PL) and electrochemical impedance spectroscopy (EIS) analyses reveal reduced intensity and imaginary impedance after sulfur doping and rGO incorporation, suggesting a suppressed charge recombination rate. Under UV light irradiation, the optimized S-g-C₃N₄/rGO-5 composite achieved 98.75 % RBB removal within 60 min and retained 37 % degradation efficiency under visible light. Additionally, the photocatalyst showed good stability, maintaining 87 % of its initial performance after five cycles. These findings highlight the potential of S-g-C₃N₄/rGO composites as efficient and sustainable photocatalysts for environmental remediation.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"72 ","pages":"Article 107545"},"PeriodicalIF":6.3,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681343","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}

{"title":"Evaluating the multiple benefits of constructed wetlands in the restoration of rural village ponds in the tropics","authors":"Kalzang Chhoden ,&nbsp;Jhalesh Kumar ,&nbsp;Rajesh Singh ,&nbsp;Omkar Singh ,&nbsp;V.C. Goyal ,&nbsp;Subhash Vyas ,&nbsp;Nihal Singh ,&nbsp;Anne Dobel ,&nbsp;Elliot Hurst ,&nbsp;Laurence Carvalho ,&nbsp;Vinay Kumar Tyagi","doi":"10.1016/j.jwpe.2025.107529","DOIUrl":"10.1016/j.jwpe.2025.107529","url":null,"abstract":"<div><div>Constructed wetlands (CWs) have been widely recognized as a cost-effective and environmentally sustainable technology for the treatment of domestic wastewater. In this study, the water quality of a CW integrated pond in Ibrahimpur village in sub-tropical India has been compared with a control pond in Masahi Kala village. Field investigations evaluated the performance of a CW system in enhancing water quality, ecological health (via macroinvertebrate analysis), and reducing greenhouse gas (GHG) emissions. The treatment chain comprises of a settling chamber (≈7 h HRT), CW (≈3.7 days HRT), and pond (≈190 days HRT) resulting in a notable reduction of BOD (83 %), COD (81 %), NH₄-N (82 %), and PO₄-P (75 %) concentration. Moreover, a 3-log reduction in average total coliform counts and a 4-log reduction in <em>E. coli</em> counts were observed. Mean CH₄ and CO₂ concentrations measured in Masahi Kala pond (control) were an order of magnitude greater than those observed in Ibrahimpur pond, i.e.,7.66 mg CH₄-C L⁻¹ and 7.69 mg CO₂-C L⁻¹ in Masahi pond compared to 0.237 mg CH₄-C L⁻¹ and 0.933 mg CO₂-C L⁻¹ in Ibrahimpur pond. The Ibrahimpur pond was dominated by <em>Chlorophyta</em> (on average 57 % of biovolume) algae, whereas, the Masahi pond was dominated by <em>Euglenophyta</em>, a bioindicator of organic pollution. The findings underscore the multifaceted benefits of CWs in revitalizing rural village ponds, demonstrating their effectiveness as a sustainable solution for ecological restoration and wastewater management.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"72 ","pages":"Article 107529"},"PeriodicalIF":6.3,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681338","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}

{"title":"Synthesis of magnetic PPAC@Fe3O4@MOF S-scheme heterojunction catalyst with enhanced removal of metronidazole antibiotic under visible light","authors":"Jafar Abdi ,&nbsp;Behnaz Latifian ,&nbsp;Tahere Taghizade Firozjaee ,&nbsp;Bagher Hayati","doi":"10.1016/j.jwpe.2025.107540","DOIUrl":"10.1016/j.jwpe.2025.107540","url":null,"abstract":"<div><div>In the present investigation, Fe-MOF decorated magnetic pomegranate peel activated carbon (PPAC) was synthesized using the two-step method, and different characterization studies confirmed the successful preparation of the PPAC@Fe₃O₄@MOF (PPACFM) nanocomposite. The photocatalytic activity of the PPACFM was evaluated using metronidazole (MNZ) antibiotic as a representative organic pollutant under visible light irradiation. The PPACFM nanocomposite achieved an impressive 99.4 % degradation of MNZ within 60 min when the concentration of MNZ was 30 mg/L, the catalyst dosage was 2 g/L, the pH value was 5, and the light power was 100 W. The results showed that the incorporation of inorganic salt ions had a discernible effect on the photocatalytic removal performance. The formation of an S-scheme heterojunction between PPAC@Fe₃O₄ and MOF was confirmed by active oxygen species trapping experiments. This heterojunction promoted electron-hole separation, which in turn improved the photocatalytic performance of MOF. Also, the catalyst maintained its excellent performance over four consecutive cycles, indicating its high reusability and stability. Hence, the PPACFM nanocomposite utilized in this study provides a valuable starting point for both the development of novel photocatalysts and the practical implementation of photocatalytic removal technology in purifying pharmaceutical wastewater.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"72 ","pages":"Article 107540"},"PeriodicalIF":6.3,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681342","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}

{"title":"Predicting photocatalytic degradation efficiency of rhodamine: A machine learning-based model for composite catalyst screening","authors":"Xiaoyu Hou ,&nbsp;Huijia Lu ,&nbsp;Xiaorong Wang ,&nbsp;Zongbao Yu ,&nbsp;Changdong Chen ,&nbsp;Kang Xu ,&nbsp;Hao Wu ,&nbsp;Yuanchao He ,&nbsp;Bin Pan","doi":"10.1016/j.jwpe.2025.107512","DOIUrl":"10.1016/j.jwpe.2025.107512","url":null,"abstract":"<div><div>TiO₂ composite catalysts, with their excellent photocatalytic activity, are superb for treating industrial wastewater pollutants such as RHB. To improve the efficiency of catalyst screening, this paper has developed a machine learning-based predictive model to forecast the degradation efficiency of RHB. The model utilizes 764 data samples to predict the degradation efficiency of RHB. The XGBoost model demonstrated exceptional predictive performance, with an MAE as low as 0.078 %, an RMSE of only 0.118 %, and an R² of 0.118 %. Through the analysis of SHAP values and feature importance, it is revealed that the main factors influencing the degradation rate of Rhodamine B are ranked in importance as follows: catalyst characteristics &gt; reaction process &gt; preparation conditions. To validate the practical application value of the model, the degradation rates of F-TiO₂, ZnO-TiO₂, Co-TiO₂, and Ni-TiO₂ composite catalysts were compared with the predictions from the XGBoost model. The results show that the error range between the experimental data and the XGBoost model predictions is less than 5 %. The XGBoost model demonstrates high precision and robustness, indicating that machine learning has significant practical application potential and value in predicting the degradation rates of photocatalysts.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"72 ","pages":"Article 107512"},"PeriodicalIF":6.3,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681341","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}

{"title":"Synthesis and performance of chitosan-coated flower-like CuBi2O4/BiOBr photoanode in photocatalytic fuel cell","authors":"Hanlu Zeng,&nbsp;Yunlan Xu,&nbsp;Dengjie Zhong,&nbsp;Qingmei Qiao,&nbsp;Yuqin Yang,&nbsp;Jitai Li","doi":"10.1016/j.jwpe.2025.107539","DOIUrl":"10.1016/j.jwpe.2025.107539","url":null,"abstract":"<div><div>Photocatalytic fuel cell (PFC) is a new device that can efficiently degrade organic pollutants and recover their energy. This paper used solvothermal method to prepare a flower-like copper bismuth oxide/bismuth oxy bromide/Chitosan/Titanium (CuBi₂O₄/BiOBr/CS/Ti) photoanode. It was then assembled with a Cu cathode to produce a PFC for reducing rhodamine B (RhB) and generating power. Different analytical methods were utilized to analyze the photoanode's chemical composition, crystal structure, and electrochemical properties. CuBi₂O₄/BiOBr/CS/Ti had higher photocatalytic activity than single and binary composite photoanodes, which had good stability. The RhB degradation rate, maximum power density (<em>P</em>_<em>max</em>), maximum photocurrent density (<em>J</em>_<em>sc</em>) and the fill factor (<em>FF</em>) of the PFC were 90.98 %, 30.80 μW·cm⁻², 0.283 mA·cm⁻² and 0.22, respectively. The results of transient photocurrent (i-t), electrochemical impedance spectra (EIS) and Mott-Schottky (M-S) spectra, and free-radical capture experiments indicated that the enhancement of the photocatalytic performance of the CuBi₂O₄/BiOBr/CS/Ti photoanode was due to the formation of the <em>Z</em>-scheme heterojunction between CuBi₂O₄ and BiOBr and the electron mobility of CS. This achieved the rapid separation and transfer of electron (e⁻)-hole (h⁺) pairs and maintained the strong oxidation of holes in the valence band (VB) of BiOBr and the strong reduction of electrons in the conduction band (CB) of CuBi₂O₄. This research introduces a novel approach to design and establish excellent performance photoanode of PFC system.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"72 ","pages":"Article 107539"},"PeriodicalIF":6.3,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681344","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}

{"title":"Construction of glycine modified NZVI@gelatin aerogel for high efficient activation of dissolved oxygen towards catalytic degradation of tetracycline","authors":"Xiangyu Wang ,&nbsp;Kunhong Wu ,&nbsp;Ping Ning ,&nbsp;Zhiling Guo ,&nbsp;Peng Zhang ,&nbsp;Lisi Wu ,&nbsp;Iseult Lynch","doi":"10.1016/j.jwpe.2025.107438","DOIUrl":"10.1016/j.jwpe.2025.107438","url":null,"abstract":"<div><div>The congregate and passivation of Nanoscale zero-valent iron (NZVI) can be significant challenges in wastewater remediation. In this study, a glycine-modified gelatin carbon aerogel-loaded NZVI catalyst (NZVI@G-GEL) was synthesized in an atmospheric setting, eliminating the requirement for nitrogen shielding. This approach significantly ameliorated the deficiencies of NZVI and aerogel. The comparison of SEM, BET, and Fe leaching demonstrated that NZVI@G-GEL not only augmented the active sites and enhanced the catalytic activity but also mitigated the risk of secondary pollution. Under the optimal conditions (0.12 g/L, pH = 6.5, 30 mg/L TC, 298 K), the degradation efficiency of tetracycline (TC) by NZVI@G-GEL reached 96.99 % in 60 min. This represents a 29.68 % improvement compared to the degradation efficiency of unmodified NZVI. Electron paramagnetic resonance (EPR) analysis shows that dissolved oxygen (DO) can be activated to generate free radicals (<img>OH, <img>O₂⁻) and non-radicals (¹O₂) in synergistic degradation of catalytic TC with each other in the absence of any oxidant addition. Additionally, fifteen intermediate products were identified through the use of liquid chromatography-mass spectrometry (LC-MS), leading to the suggestion of three potential degradation mechanisms for TC. This research offers a novel strategy for the breakdown of organic contaminants in water using advanced oxidation techniques, eliminating the need for additional oxidants and energy.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"72 ","pages":"Article 107438"},"PeriodicalIF":6.3,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681339","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}

{"title":"Combining POA-VMD for multi-machine learning methods to predict ammonia nitrogen in the largest freshwater lake in China (Poyang Lake)","authors":"Chengming Luo ,&nbsp;Xihua Wang ,&nbsp;Y. Jun Xu ,&nbsp;Cong Wang ,&nbsp;Qinya Lv ,&nbsp;Xuming Ji ,&nbsp;Boyang Mao ,&nbsp;Shunqing Jia ,&nbsp;Zejun Liu ,&nbsp;Yanxin Rong ,&nbsp;Yan Dai","doi":"10.1016/j.jwpe.2025.107511","DOIUrl":"10.1016/j.jwpe.2025.107511","url":null,"abstract":"<div><div>Nitrogen pollution, especially ammonia nitrogen (NH₃-N), poses a serious environmental threat to the ecological health of large freshwater lakes and the sustainable use of water resources. However, accurately predicting NH₃-N levels over a period of time remains a challenging task because of the complexity and dynamics of water quality data, which are influenced by various environmental factors. Traditional time series methods and stand-alone machine learning models are often limited in making accurate predictions for complex nonlinear data. To this end, we propose a novel hybrid prediction framework that combines the Pelican Optimization Algorithm-Variable Mode Decomposition (POA-VMD) with a variety of machine learning methods, including Random Forests (RF), Transformers, Long Short-Term Memory (LSTM), Bi-directional LSTMs, and Gated Recurrent Units. Among them, POA is applied to the hyperparameter optimization of VMD, which reduces the effects of redundant patterns and noise by automatically searching for optimal hyperparameter combinations. The results show that by combining POA-VMD, the prediction performance of all the machine learning models applied in this study is improved. The comparison reveals that POA-VMD-RF has the highest prediction accuracy with an R² of 0.9153, which is 26.4 % higher than the original RF model, while the POA-VMD-LSTM, POA-VMD-BiLSTM and POA-VMD-GRU hybrid models also have good prediction performances, with an R² of more than 0.8. The results highlight the potential of the proposed hybrid model for NH₃-N prediction in large freshwater lakes, which can provide important support for water quality monitoring and management.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"72 ","pages":"Article 107511"},"PeriodicalIF":6.3,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681336","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}

{"title":"Microplastics from industrial sources: A known but overlooked problem","authors":"Ozan Karakurt,&nbsp;Oğuzhan Altuntaş,&nbsp;İrem Şimşek,&nbsp;Dilara Hatinoğlu,&nbsp;F. Dilek Sanin","doi":"10.1016/j.jwpe.2025.107487","DOIUrl":"10.1016/j.jwpe.2025.107487","url":null,"abstract":"<div><div>Current studies suggest that industrial wastewaters can be major sources of microplastics (MPs), but specific studies are rare in regard to specific industries and organized industrial zones (OIZs). This study addresses this gap by analyzing two different OIZs and two selected industries from each in terms of their MPs concentrations, characteristics, their diurnal variation and the effect of pretreatments employed by the industries. One OIZ contains an industrial WWTP (IWWTP) so the effect of this plant by the analysis of wastewater from inlet, outlet as well as wastewater and sludge from specific units are evaluated. MPs encountered had a variety of sizes, but the smallest size (38 μm to 425 μm) dominated almost all the samples analyzed. Variety of plastics have been observed including the most common types as well as rare ones. MPs' relative abundances changed and diversity decreased after treatment. It is shown that IWWTPs can reduce MP concentrations up to 95 %, and results in the capture of 127 million particles each day. However, the results also show that industrial wastewaters can still emit 7.6 million particles, which indicates both the magnitude of the problem and the effectiveness of WWTPs, considering that the other OIZ without a WWTP discharges 384 million MPs daily.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"72 ","pages":"Article 107487"},"PeriodicalIF":6.3,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681337","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}

{"title":"A “honeycomb” heterostructured α-MnO2 nanowire/NiCo2O4 hollow nanocages with superior photoelectrocatalytic performance for water purification","authors":"Yuejie Li ,&nbsp;Yan Chen ,&nbsp;Xinyue Wang ,&nbsp;Khalil Md Ibrahim ,&nbsp;Guowen Wang ,&nbsp;Xinxin Zhang ,&nbsp;Hongchao Ma","doi":"10.1016/j.jwpe.2025.107521","DOIUrl":"10.1016/j.jwpe.2025.107521","url":null,"abstract":"<div><div>Recently, employing photoelectrocatalysis (PEC) strategy to eliminate environmental impact and hazards of hard-to-handle antibiotics such as sulfamethoxazole (SMX) has been given increasing attention. Herein, a “honeycomb” heterostructured α-MnO₂ nanowire/NiCo₂O₄ hollow nanocages PEC catalyst is fabricated by using a continuous assembly process as following: (1) construction of α-MnO₂ nanowire carrier, (2) surface adhesion of ZIF-67, and (3) Co/Ni ion exchange. The as-synthesized Ti/α-MnO₂@NiCo₂O₄ demonstrated excellent PEC performance for degrading SMX, as compared with that of α-MnO₂, α-MnO₂@ZIF-67. Especially, the optimized Ti/α-MnO₂@NiCo₂O₄-30 showed removal rate of 98.2 % for SMX in 30 min, outstanding durability (~8000 s), and tolerable reusability (the removal rate can still reach 76.5 % for SMX after five cycles). The improvement of PEC performance for Ti/α-MnO₂@NiCo₂O₄ can be attributed to that the unique porous structure formed numerous electrochemically active sites, and the α-MnO₂ nanowire as common channel for charge transfer promoted the migration of induced carriers. The DFT calculation indicated that a II-scheme heterojunction can be formed over the α-MnO₂@NiCo₂O₄ composite, which can effectively inhibit the recombination of induced carriers, facilitate the degradation process. This work provides a valuable approach for constructing nanohybrids with targeted functionalities, opening new possibilities for the application of nanomaterials in wastewater treatment.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"72 ","pages":"Article 107521"},"PeriodicalIF":6.3,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681424","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}