Environmental Technology最新文献_第10页

Combining photocatalytic and electrocatalytic oxidation for dibutyl phthalate degradation: the influence of carbon-coated titanium anode and metal oxide catalysts. 结合光催化和电催化氧化法降解邻苯二甲酸二丁酯：碳涂层钛阳极和金属氧化物催化剂的影响。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-01-01 Epub Date: 2024-05-31 DOI: 10.1080/09593330.2024.2360747

Salman Farissi, Kochuparambil Ajayaghosh Akhilghosh, Anbazhagi Muthukumar, Muthukumar Muthuchamy

{"title":"Combining photocatalytic and electrocatalytic oxidation for dibutyl phthalate degradation: the influence of carbon-coated titanium anode and metal oxide catalysts.","authors":"Salman Farissi, Kochuparambil Ajayaghosh Akhilghosh, Anbazhagi Muthukumar, Muthukumar Muthuchamy","doi":"10.1080/09593330.2024.2360747","DOIUrl":"10.1080/09593330.2024.2360747","url":null,"abstract":"Plasticisers, such as dibutyl phthalate (DBP), are contaminants of emerging concern (CEC) that are toxic to living things and the environment. Unlike hydrophilic pollutants, DBP shows the characteristics of hydrophilic and hydrophobic nature which makes its degradation or removal difficult using conventional treatment technologies. The current study explored the potential of photocatalysis followed by electrocatalytic oxidation (PC + EC) using vanadium pentoxide (V2O5) and carbon-coated titanium (C/Ti) anode for the removal of 75 mg L-1 DBP from water. The structural stability and changes in the functional groups after treatment of the catalyst were determined using powder XRD and FTIR studies that found the catalyst structure to be stable. Optimization studies showed that UV-A (315-400 nm) irradiation source, 112 mA cm-2 current density, 50 mg L-1 catalyst dosage, 360 min PC, 210 min EC at pH 3 and 20 mM sodium sulphate managed to degrade 99.5% of DBP with 97% COD and 87.7% TOC removal. Compared to electrocatalytic oxidation (EC), PC + EC showed 40% higher TOC removal. Reusability studies found the reduction of 45% for COD removal after four treatment cycles with V2O5, while the anode material showed no considerable decrease in its degradation efficiency. High-resolution mass spectrometry (HRMS) studies established that complete degradation was preceded by the oxidation of DBP to phthalic anhydride and phthalic acid responsible for the increase in TOC during the initial treatment period. Overall, this study lays out insights for the application of photo-electrocatlytic oxidation for the removal of ubiquitous poorly soluble water pollutants such as phthalates.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"494-508"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141183698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Remediation of oil-polluted soil using anionic and non-ionic composite biosurfactants. 使用阴离子和非离子复合生物表面活性剂修复受石油污染的土壤。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-01-01 Epub Date: 2024-06-14 DOI: 10.1080/09593330.2024.2366448

Yanxin Zhao, Yuhuan Sun, Fang Zuo, Haihan Sun, Shaoping Kuang, Shuwu Zhang, Fayuan Wang

{"title":"Remediation of oil-polluted soil using anionic and non-ionic composite biosurfactants.","authors":"Yanxin Zhao, Yuhuan Sun, Fang Zuo, Haihan Sun, Shaoping Kuang, Shuwu Zhang, Fayuan Wang","doi":"10.1080/09593330.2024.2366448","DOIUrl":"10.1080/09593330.2024.2366448","url":null,"abstract":"Petroleum hydrocarbons as pervasive pollutants pose a significant threat to soil ecology and human health. Surfactant washing as an established technique can effectively remediate soils contaminated by hydrocarbons. Biosurfactants, which combine the properties of surfactants and environmental compatibility, have attracted increasing interest. However, due to the high production cost of biosurfactants, their practical application is restricted. This study addressed these limitations by selecting two biosurfactants, β-cyclodextrin (C1) and sodium carboxymethyl cellulose (C2), and developed a promising cleaning agent formula through compounding and the addition of suitable additives. When the volume ratio of C1 to C2 was 8:2 and an 8 g/L mixture of sodium humate and sodium carbonate electrolyte was added, the surfactant system's surface tension reached a minimum, yielding optimal oil removal. The formation and synergistic behaviour of mixed micelles of surfactants were explained using ideal solution theory and the Rubingh model. By optimising the oil washing process parameters - normal temperature of 25 °C, pH 11, washing time of 2 h, solid-liquid ratio of 1:5, and oscillation frequency of 200 r/min - the oil removal rate achieved 76%. This cleaning agent, characterised by low production cost, straightforward application, environmental compatibility, and rapid, significant cleaning effect, shows potential for field-scale purification of petroleum-contaminated soil.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"636-650"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141320768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis, magnetic properties, biotoxicity and potential mechanism of modified nano zero-valent iron for decolorization of dye wastewater. 用于染料废水脱色的改性纳米零价铁的合成、磁性能、生物毒性和潜在机理。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-01-01 Epub Date: 2024-05-21 DOI: 10.1080/09593330.2024.2354057

Si-Yi Zhang, He Shi, Man-di Zhu, Wei-Guang Jie, Lian-Bao Kan

{"title":"Synthesis, magnetic properties, biotoxicity and potential mechanism of modified nano zero-valent iron for decolorization of dye wastewater.","authors":"Si-Yi Zhang, He Shi, Man-di Zhu, Wei-Guang Jie, Lian-Bao Kan","doi":"10.1080/09593330.2024.2354057","DOIUrl":"10.1080/09593330.2024.2354057","url":null,"abstract":"SiO2-coated nano zero-valent iron (nZVI) has emerged as a fine material for the treatment of dye wastewater due to its large specific surface area, high surface activity, and strong reducibility. However, the magnetic properties based on which SiO2-coated nZVI (SiO2-nZVI) could effectively separate and recover from treated wastewater, and the biotoxicity analysis of degradation products of the dye wastewater treated by SiO2-nZVI remain unclear. In this study, SiO2-nZVI was synthesized using a modified one-step synthesis method. The SiO2-nZVI nanoparticles were characterized using Transmission electron microscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, Fully automatic specific surface and porosity analyzer, Vibrating sample magnetometer, and Zeta potential analyzer. The removal rate of methyl orange (MO) by SiO2-nZVI composite reached 98.35% when the degradation performance of SiO2-nZVI treating MO was optimized. Since SiO2-nZVI analysed by magnetic hysteresis loops had large saturation magnetization and strong magnetic properties, SiO2-nZVI exhibited excellent ferromagnetic behaviour. The analysis of the degradation products showed that the MO treated by SiO2-nZVI was converted into a series of intermediates, resulting in reducing the toxicity of MO. The potential mechanism of MO degradated by SiO2-nZVI was speculated through degradation process and degradation kinetics analysis. Overall, the SiO2-nZVI composite may be regarded as a promising catalyst for decolorization of dye wastewater.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"232-245"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141070367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Treatment of phenolic wastewater in an anaerobic fluidized bed microbial fuel cell filled with graphene oxide-macroporous adsorption resin as multifunctional carrier. 以氧化石墨烯-大孔吸附树脂为多功能载体的厌氧流化床微生物燃料电池处理酚类废水。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-01-01 Epub Date: 2024-05-08 DOI: 10.1080/09593330.2024.2348674

Xinmin Liu, Zhaoxin Zhou, Ning Liu, Yuqing Huang, Qingjie Guo

{"title":"Treatment of phenolic wastewater in an anaerobic fluidized bed microbial fuel cell filled with graphene oxide-macroporous adsorption resin as multifunctional carrier.","authors":"Xinmin Liu, Zhaoxin Zhou, Ning Liu, Yuqing Huang, Qingjie Guo","doi":"10.1080/09593330.2024.2348674","DOIUrl":"10.1080/09593330.2024.2348674","url":null,"abstract":"A novel graphene oxide-modified resin (graphene oxide-macroporous adsorption resin) was prepared and used as a multifunctional carrier in an anaerobic fluidized bed microbial fuel cell (AFB-MFC) to treat phenolic wastewater (PW). The macroporous adsorption resin (MAR) was used as the carrier, graphene oxide was used as the modified material, the conductive modified resin was prepared by loading graphene oxide (GO) on the resin through chemical reduction. The modified resin particles were characterized by scanning electron microscopy (SEM), Raman spectroscopy (RS), specific surface area and pore structure analysis. Graphene oxide-macroporous adsorption resin special model was established using the Amorphous Cell module in Materials Studio (MS), and the formation mechanism of graphene oxide-macroporous adsorption resin was studied using mean square displacement (MSD) of the force module. Molecular dynamics simulation was used to study the motion law of molecular and atomic dynamics at the interface of graphene oxide-macroporous adsorption resin composites. The strong covalent bond between GO and MAR ensures the stability of GO/MAR. When the modified resin prepared in 3.0 mg/mL GO mixture was used in the AFB-MFC, the COD removal of wastewater was increased by 9.1% to 72.44%, the voltage was increased by 84.04% to 405.8 mV, and power density was increased by 765.44% to 242.67 mW/m2.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"165-178"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140891627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sludge deep dewatering by liquefied dimethyl ether: selection of operating conditions based on response surface methodology. 利用液化二甲醚进行污泥深度脱水：基于响应面方法的操作条件选择。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-01-01 Epub Date: 2024-05-15 DOI: 10.1080/09593330.2024.2354123

Mingzhu Wang, Ying Huang, Dong Zhang, Yuan He

引用次数: 0

Effect of coil diameter on water disinfection efficiency in a helical photoreactor using ultraviolet-C light emitting diodes. 使用紫外线-C 发光二极管的螺旋光反应器中线圈直径对水消毒效率的影响。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-01-01 Epub Date: 2024-05-16 DOI: 10.1080/09593330.2024.2354122

Chien-Ping Wang, Yu-Cheng Chang, Yung-Hsiang Lin, Qiang Jia

{"title":"Effect of coil diameter on water disinfection efficiency in a helical photoreactor using ultraviolet-C light emitting diodes.","authors":"Chien-Ping Wang, Yu-Cheng Chang, Yung-Hsiang Lin, Qiang Jia","doi":"10.1080/09593330.2024.2354122","DOIUrl":"10.1080/09593330.2024.2354122","url":null,"abstract":"This study investigated the disinfection efficiency of a photoreactor equipped with a helical water flow channel and ultraviolet-C (UV-C) light emitting diodes (LEDs). Theoretical simulations and biodosimetry tests were conducted to investigate the effects of coil diameter and flow rate on the reactor's performance in inactivating Escherichia coli. The interplay between hydrodynamics and UV radiation was analyzed to determine the UV fluence absorbed by the microbes. The simulations revealed that, primarily due to the specific radiation pattern of the UV LEDs, the coil diameter strongly influenced the distribution of irradiance in the water and the UV fluence received by microbes. The experimental results indicated that the photoreactor achieved the highest inactivation value of 2.8 log when the coil diameter was 48 mm for a flow rate of 40 mL/min; this log value was superior to those for coil diameters of 16, 32, 64, and 80 mm by approximately 1.9, 0.4, 0.5, and 0.7 log units, respectively. This optimal coil diameter leading to the maximal UV irradiance and the highest degree of irradiance uniformity along the flow channel. This study offers design guidelines for constructing a high-efficiency water disinfection reactor with a helical flow channel configuration.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"279-288"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140956906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of pelletization on biomethane production from wheat straw. 造粒对小麦秸秆生物甲烷生产的影响。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-01-01 Epub Date: 2024-05-27 DOI: 10.1080/09593330.2024.2359095

Prakash Singh, Pallavi Dogra, Ajay S Kalamdhad

{"title":"Effects of pelletization on biomethane production from wheat straw.","authors":"Prakash Singh, Pallavi Dogra, Ajay S Kalamdhad","doi":"10.1080/09593330.2024.2359095","DOIUrl":"10.1080/09593330.2024.2359095","url":null,"abstract":"The high lignin content and low bulk density of wheat straw pose challenges for biogas production. To overcome these hurdles, pretreatment and biomass pelletization have emerged as viable options. Thus, this research aims to reduce the recalcitrant nature of WS by employing various thermal pretreatment techniques and identifying the optimum parameters (temperature and time). To prepare pellets, a mixture comprising wheat straw (subjected to the best pretreatment) and cow manure pellets (WCP) at varying substrate and binder (Svs/Bvs) ratios ranging from 0.5 to 2.5 were used. Parameters such as density, water absorption, and drop shattering were evaluated to evaluate the physical characteristics of produced WCP. Additionally, the biomethane yield test of WCP (exhibiting the most favourable physical characteristics) was performed with various total solids (TS) concentrations from 4 to 12%. The WS demonstrated the highest sCOD solubilisation of 9066 mg/L when subjected to a hot air oven pretreatment (90 min at 110°C). The physical qualities of WCP were found to be dependent on the Svs/Bvs ratio (with the optimal ratio being 2.0). It was also observed that a TS content of 6% yielded the highest biomethane production (253.85 mL/g-VSconsumed). In summary, this study's conclusion waves the path of management of wheat straw and cow dung while simultaneously generating bioenergy.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"431-442"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141154837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving selectivity and antifouling properties of a PES hollow fibre membrane with a photo-enzyme for the removal of ciprofloxacin and sulfamethoxazole. 利用光敏酶提高聚醚砜中空纤维膜去除环丙沙星和磺胺甲噁唑的选择性和防污性能。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-01-01 Epub Date: 2024-06-03 DOI: 10.1080/09593330.2024.2360231

R Tsolele, O A Arotiba, S P Malinga

{"title":"Improving selectivity and antifouling properties of a PES hollow fibre membrane with a photo-enzyme for the removal of ciprofloxacin and sulfamethoxazole.","authors":"R Tsolele, O A Arotiba, S P Malinga","doi":"10.1080/09593330.2024.2360231","DOIUrl":"10.1080/09593330.2024.2360231","url":null,"abstract":"A multifunctional hollow fibre was prepared by the modification of polyethersulfone (PES) with laccase (Lac) and phosphorus-doped graphitic carbon nitride (P-gC3N4) for the removal of ciprofloxacin and sulfamethoxazole. The properties and structure elucidation of the prepared membranes were evaluated using contact angle analysis, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), correlative light electron microscopy (CLEM), atomic force microscopy (AFM), tensile strength, water-intake capacity, and pure water flux. The modified multifunctional hollow fibre membranes showed increased root mean square surface roughness from 50 nm for neat PES to 104 nm, which contributed to the significantly higher water flux of 90 L.m-2h-1 compared to 54 L.m-2h-1 for pristine PES. The hydrophilicity also improved after modification as the contact angle reduced from 72° ± 1.01° to 42° ± 2.26°. The modified hollow fibre membranes showed an enhanced removal of ciprofloxacin (77%) and sulfamethoxazole (80%). Moreover, antifouling properties towards bovine serum albumin were 89% for FRR, 7% for Rr, 9% for Rir and 17% for Rt. Regeneration studies showed that the multifunctional hollow fibre membrane obtained a high removal percentage of 79% towards sulfamethoxazole after five cycles. Hence, this work proposes a new system that can be successfully utilized in the treatment of emerging pharmaceutical pollutants in water.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"453-476"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141236245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cations impact the biodegradation of iodosulfuron-methyl herbicidal ionic liquids by fungi. 阳离子影响真菌对碘磺隆除草离子液体的生物降解。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-01-01 Epub Date: 2024-06-07 DOI: 10.1080/09593330.2024.2357696

Jan Homa, Kosma Konończuk, Robert Frankowski, Agnieszka Zgoła-Grześkowiak, Łukasz Ławniczak, Łukasz Chrzanowski, Witold Stachowiak, Michał Niemczak

{"title":"Cations impact the biodegradation of iodosulfuron-methyl herbicidal ionic liquids by fungi.","authors":"Jan Homa, Kosma Konończuk, Robert Frankowski, Agnieszka Zgoła-Grześkowiak, Łukasz Ławniczak, Łukasz Chrzanowski, Witold Stachowiak, Michał Niemczak","doi":"10.1080/09593330.2024.2357696","DOIUrl":"10.1080/09593330.2024.2357696","url":null,"abstract":"In the framework of this study, six fungal isolates which demonstrated a high capability for biodegrading iodosulphuron-methyl sodium as well as herbicidal ionic liquids based on this herbicide were isolated from different soil samples. The isolates were identified based on the ITS region, whereas biodegradation residues were determined based on LC-MS/MS. Depending on the isolate, the half-lives values of the biodegraded herbicide or herbicidal ionic liquid ranged significantly from just 1.25 days to more than 40 days. The research findings unveiled that the structure of cations is a central limiting factor affecting fungal growth and herbicide transformation in case of ionic liquids. The length of the alkyl chain has been identified as the primary driver of herbicide toxicity, emphasizing the importance of structural factors in herbicide design. In cases when dodecyl(2-hydroxyethyl)dimethyl cation was used, its biodegradation ranged from 0 to approx. 20% and the biodegradability of the iodosulfuron-methyl was notably limited for the majority of the studied isolates. This knowledge provides guidance for development and selection of herbicides with reduced environmental impact. This study highlights the ecological importance of soil fungi, their potential role in herbicide biodegradation, the influence of cations on fungal growth and herbicide transformation, and the structural factors governing herbicide toxicity. Further research in these areas may lead to more efficient and environmentally friendly approaches to herbicide management.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"387-400"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141287912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sludge reduction and hydrogen production in a microbial photoelectrochemical cell with a g-C₃N₄/CQDs/BiOBr composite photocathode. 使用 g-C3N4/CQDs/BiOBr 复合光阴极的微生物光电化学电池中的污泥还原和制氢。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-01-01 Epub Date: 2024-06-11 DOI: 10.1080/09593330.2024.2361486

Yue Li, Jinyu Zhao, Lili Lin, Jing Li, Ziru Gao, Jiayi Li, Yingying Gu

{"title":"Sludge reduction and hydrogen production in a microbial photoelectrochemical cell with a g-C3N4/CQDs/BiOBr composite photocathode.","authors":"Yue Li, Jinyu Zhao, Lili Lin, Jing Li, Ziru Gao, Jiayi Li, Yingying Gu","doi":"10.1080/09593330.2024.2361486","DOIUrl":"10.1080/09593330.2024.2361486","url":null,"abstract":"Hydrogen (H2) remains a pivotal clean energy source, and the emergence of Solar-powered Microbial Photoelectrochemical Cells (MPECs) presents promising avenues for H2 production while concurrently aiding organic matter degradation. This study introduces an MPEC system employing a g-C3N4/CQDs/BiOBr photocathode and a bioanode, successfully achieving simultaneous H2 production and sludge reduction. The research highlights the effective formation of a Z-type heterojunction in the g-C3N4/CQDs/BiOBr photocathode, substantially enhancing the photocurrent response under light conditions. Operating at - 0.4 V versus RHE, it demonstrated a current density of - 3.25 mA·cm-2, surpassing that of g-C3N4/BiOBr (-2.25 mA·cm-2) by 1.4 times and g-C3N4 (-2.04 mA·cm-2) by 1.6 times. When subjected to visible light irradiation and a 0.8 V applied bias voltage, the MPEC system achieved a current density of 1.0 mA·cm-2. The cumulative H2 production of the MPEC system reached 8.9 mL, averaging a production rate of 0.13 mL·h-1. In the anode chamber, the degradation rates of total chemical oxygen demand (TCOD), soluble chemical oxygen demand (SCOD), total suspended solids (TSS), volatile suspended solids (VSS), proteins, polysaccharides, and volatile fatty acids (VFA) in the sludge were recorded at 57.18%, 82.64%, 64.98%, 86.39%, 42.81%, 67.34%, and 29.01%, respectively.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"539-552"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141300416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0