Journal of Industrial and Engineering Chemistry最新文献_第3页

Construction of Mott-Schottky hetero-interface in Ag/Ni-ferrite nanowire with rice husk-derived carbon powder in double layer configuration for enhancing radar-absorption performance 双层稻壳碳粉在银/镍铁氧体纳米线中构建Mott-Schottky异质界面以增强雷达吸收性能

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-09-17 DOI: 10.1016/j.jiec.2025.09.027

Ali A. Rajhi , Alaauldeen A. Duhduh

The exact manipulation of the interfacial electric field is a crucial aspect in enhancing the electromagnetic wave absorption efficiency during the manufacturing of optimized and adjustable absorbers. Furthermore, achieving superior electromagnetic wave absorption necessitates the synergistic interaction between commencing various loss mechanisms and maintaining appropriate impedance matching. This work utilizes in-situ solvothermal synthesis to deposit Ni-ferrite nano-powder onto silver nanowire surfaces with Schottky contact, while simultaneously producing Rice Husk-Derived Carbon Powder by a simple pyrolysis process, to create a novel double-layer absorber. The dual-layer absorber optimizes the interaction between various attenuation techniques and impedance matching by establishing widely used heterointerfaces and diverse energy level arrangements. The design optimization of the two-layer absorber, specifically through the modification of each layer’s thickness, yielded an absorption bandwidth encompassing the entire examined frequency range, with a minimum reflection coefficient of −50.1 dB attained at 14.6 GHz for an overall thickness of 1.2 mm. The findings reveal that the plentiful heterogeneous interfaces and multiple polarization centers in the double-layer absorber, combined with the Mott-Schottky heterointerface in Ag/Ni-ferrite nanowires, markedly accelerate electron migration, facilitating the development of built-in electric fields (BIEFs) and improving dielectric loss, polarization relaxation characteristics, and magnetic loss.

在优化可调吸波器的制造过程中，界面电场的精确控制是提高电磁波吸收效率的关键。此外，实现优异的电磁波吸收需要启动各种损耗机制和保持适当的阻抗匹配之间的协同作用。本研究利用原位溶剂热合成技术将镍铁氧体纳米粉末沉积在具有肖特基接触的银纳米线表面，同时通过简单的热解工艺生产稻壳衍生碳粉，以创建一种新型的双层吸收剂。双层吸收器通过建立广泛使用的异质界面和不同的能级排列，优化了各种衰减技术之间的相互作用和阻抗匹配。两层吸收器的设计优化，特别是通过修改每层的厚度，产生了包含整个检测频率范围的吸收带宽，在14.6 GHz时，总厚度为1.2 mm，反射系数最小为- 50.1 dB。研究结果表明，双层吸收层中丰富的非均相界面和多个极化中心，结合Ag/ ni -铁氧体纳米线中的Mott-Schottky异质界面，显著加速了电子迁移，促进了内置电场（BIEFs）的发展，改善了介电损耗、极化弛豫特性和磁损耗。

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引用次数: 0

Corrigendum to “Ligand imprinted composite adsorbent for effective Ni(II) ion monitoring and removal from contaminated water”. [J. Ind. Eng. Chem. 131 (2024) 585–592] 配体印迹复合吸附剂用于有效监测和去除污染水中的Ni（II）离子。[J。印第安纳州,Eng。化学。131 (2024)585-592]

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-09-04 DOI: 10.1016/j.jiec.2025.08.048

Mrs Eti Awual , Md. Shad Salman , Md. Munjur Hasan , Md. Nazmul Hasan , Khadiza Tul Kubra , Md. Chanmiya Sheikh , Adiba Islam Rasee , Ariyan Islam Rehan , R.M. Waliullah , Mohammed Sohrab Hossain , Hadi M. Marwani , Abdullah M. Asiri , Mohammed M. Rahman , Aminul Islam , Md. Abdul Khaleque , Md. Rabiul Awual

引用次数: 0

Corrigendum to “Supramolecular charge-reversal pillar[6]arenes-oxaliplatin system for cancer therapy with reduced toxicity and enhanced efficacy”. [J. Industr. Eng. Chem. 150 (2025) 632–64] “用于降低毒性和提高疗效的癌症治疗的超分子电荷反转柱[6]芳烃-奥沙利铂系统”的更正。[J。从事工业。Eng。化学。150 (2025)632-64]

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-09-02 DOI: 10.1016/j.jiec.2025.08.040

Ping Yang , Kairong Zhao , Shuai Zhao , Wenjing Wang , Yonggan Xue , Jun Nie , Yincheng Chang , Jingyi Yan

引用次数: 0

Exploring the synergistic effects of rGO and MWCNT in NiO-based mesoporous hybrid nanostructures for supercapacitor applications 探索氧化石墨烯和MWCNT在镍基介孔杂化纳米结构中用于超级电容器的协同效应

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-09-02 DOI: 10.1016/j.jiec.2025.09.001

Govindan Suresh Kumar , Selvaraj Ranjith Priyan , Srinivasan Surendhiran , Srinivasan Ramalingam , Raji Atchudan , Nguyen Van Minh , Mohammed Mujahid Alam

In this study, we present a microwave-assisted synthesis to produce NiO, MWCNT@NiO, and rGO@NiO hybrid nanostructures efficiently. Comprehensive characterizations, including XRD, FTIR, FESEM, TEM, EDX, and BET confirmed the formation and structural integrity of MWCNT@NiO and rGO@NiO nanostructures. The nanostructures’ electrochemical efficiency was examined in a 2 M KOH electrolyte. The specific capacitance of the rGO@NiO nanostructure is found to be the highest, with 491F/g at a current density of 1 A/g, compared to pure NiO (255F/g) and MWCNT@NiO (370F/g). This greater performance comes from the collaborative properties of the reduced graphene oxide, providing better ion diffusion, charge transfer efficiency, and active surface area with exemplary stability of capacitance of 91 % after 5000 cycles, which is much better cycling and mechanical stability than that of MWCNT@NiO and pure NiO. Furthermore, the electrochemical performance of the rGO@NiO ASC device was assessed using 1 M KOH as the electrolyte throughout a potential range of 0 to 1.2 V. At a current density of 1A/g, the device provided 31.92 Wh/kg energy density and 599.96 W/kg power density. The ASC device demonstrated good charge–discharge behavior, indicating superior capacitance properties and efficient ion transport. Thus, the rGO@NiO hybrid nanostructure can be a potential material for supercapacitor applications.

在这项研究中，我们提出了一种微波辅助合成方法来高效地制备NiO， MWCNT@NiO和rGO@NiO杂化纳米结构。通过XRD、FTIR、FESEM、TEM、EDX和BET等综合表征，证实了MWCNT@NiO和rGO@NiO纳米结构的形成和结构完整性。在2 M KOH电解液中考察了纳米结构的电化学效率。与纯NiO （255F/g）和MWCNT@NiO （370F/g）相比，rGO@NiO纳米结构的比电容最高，在电流密度为1 a /g时为491F/g。这种更好的性能来自于还原氧化石墨烯的协同特性，提供更好的离子扩散、电荷转移效率和活性表面积，在5000次循环后电容稳定性为91%，这比MWCNT@NiO和纯NiO的循环和机械稳定性要好得多。此外，在0 ~ 1.2 V电位范围内，以1 M KOH作为电解液，对rGO@NiO ASC器件的电化学性能进行了评估。在1A/g电流密度下，器件的能量密度为31.92 Wh/kg，功率密度为599.96 W/kg。ASC器件表现出良好的充放电性能，显示出优越的电容性能和高效的离子传输。因此，rGO@NiO混合纳米结构可以成为超级电容器应用的潜在材料。

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引用次数: 0

Boosting the CO2 capture and regeneration performance by nanographene@zinc oxide as novel green-synthesized nanocomposites 新型绿色合成纳米复合材料nanographene@zinc氧化物提高CO2捕获和再生性能

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-08-25 DOI: 10.1016/j.jiec.2025.08.045

Sinan Kutluay

Increasing carbon dioxide (CO₂) emissions on a global scale necessitate the development of effective and sustainable solutions to combat climate change. This study examined in detail the CO₂ adsorption capacity and regeneration performance of the nanographene@zinc oxide (NG@ZnO-green) nanocomposite, produced using an environmentally friendly green synthesis method. While pure water was used as the solvent in the impregnation stage of the conventional production of the NG@ZnO nanocomposite, hemp stalk bio-extract was used instead in the green synthesis process. This bio-extract enabled more effective binding of ZnO to the NG surface, thus maximizing the interaction between NG and ZnO, resulting in a more homogeneous modification. SEM and TEM analyses revealed that the ZnO particles were densely and uniformly distributed on the NG surface. According to BET results, the NG@ZnO-green nanocomposite has a specific surface area of 705 m²/g, a total pore volume of 0.51 cm³/g, and a mean pore diameter of 4.97 nm. CO₂ adsorption tests were conducted at 298 K and 273 K under 1 bar pressure, and NG, NG@ZnO, and NG@ZnO-green exhibited CO₂ uptake capacities of 2.07–2.59 mmol/g, 4.56–5.43 mmol/g, and 5.95–6.99 mmol/g, respectively. This comparison revealed that the NG@ZnO-green nanocomposite exhibited significantly superior performance compared to both pure NG and conventionally synthesized NG@ZnO, confirming the effectiveness of the proposed green synthesis strategy. The isosteric heat of adsorption (Q_st), calculated using the Clausius–Clapeyron equation, indicated strong physical interactions between NG@ZnO-green and CO₂. Ten-cycle reuse tests revealed a high regeneration capacity for this nanocomposite, with a reuse efficiency of up to 95 %. All findings demonstrate that the environmentally friendly synthesis method developed using hemp-based bio-extract offers advantages not only in terms of sustainability but also in terms of CO₂ capture performance. Furthermore, this capacity exceeds that reported for many advanced adsorbents under similar conditions, demonstrating the material’s technical and environmental superiority. The NG@ZnO-green nanocomposite stands out as a promising candidate for carbon capture technologies.

全球范围内二氧化碳排放量的增加要求制定有效和可持续的解决方案来应对气候变化。本研究详细考察了采用环保绿色合成方法制备的nanographene@zinc氧化物（NG@ZnO-green）纳米复合材料的CO2吸附能力和再生性能。传统生产NG@ZnO纳米复合材料的浸渍阶段采用纯水作为溶剂，绿色合成过程中采用大麻茎生物提取物代替。该生物提取物能够更有效地将ZnO结合到NG表面，从而使NG和ZnO之间的相互作用最大化，从而获得更均匀的修饰。SEM和TEM分析表明，ZnO颗粒密集均匀地分布在NG表面。BET结果表明，NG@ZnO-green纳米复合材料的比表面积为705 m2/g，总孔容为0.51 cm3/g，平均孔径为4.97 nm。在298 K和273 K、1 bar压力下进行CO2吸附实验，结果表明，NG、NG@ZnO和NG@ZnO-green对CO2的吸收能力分别为2.07 ~ 2.59 mmol/g、4.56 ~ 5.43 mmol/g和5.95 ~ 6.99 mmol/g。通过比较发现，NG@ZnO-green纳米复合材料的性能明显优于纯NG和常规合成NG@ZnO，证实了所提出的绿色合成策略的有效性。利用Clausius-Clapeyron方程计算的等等吸附热（Qst）表明NG@ZnO-green与CO2之间存在很强的物理相互作用。十循环重复使用试验表明，这种纳米复合材料具有很高的再生能力，重复使用效率高达95%。所有研究结果都表明，使用基于大麻的生物提取物开发的环境友好型合成方法不仅在可持续性方面具有优势，而且在二氧化碳捕获性能方面也具有优势。此外，在类似条件下，这种能力超过了许多先进吸附剂的报道，证明了该材料的技术和环境优势。NG@ZnO-green纳米复合材料作为碳捕获技术的一个有前途的候选者脱颖而出。

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引用次数: 0

Synergistic two-step modification of polybenzimidazole (PBI) nanofiltration membranes for improved molecular separation in acidic and organic environments 聚苯并咪唑（PBI）纳滤膜的两步协同改性以改善酸性和有机环境中的分子分离

IF 6.1 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-20 DOI: 10.1016/j.jiec.2025.07.048

Srinath Ravi, Sung Ju Shin, Saikat Sinha Ray, Young-Nam Kwon

This study presents a time-efficient, two-step modification strategy to significantly enhance polybenzimidazole (PBI) membrane resistance to acids and organic solvents, targeting low-pH aqueous and organic solvent nanofiltration (OSN) for industrial applications. A green solvent-based aqueous Fenton reaction pretreats the membrane, improving chemical and thermal stability via enhanced chain interactions. Subsequent Thiol-Ene click chemistry crosslinking introduces crucial flexibility, compensating for Fenton-induced brittleness. This synergistic PBI-FT membrane demonstrates remarkable stability in 70 % HNO3 (maintaining > 80 % MgSO4 rejection) and highly polar aprotic solvents (DMAc, DMF, NMP), retaining > 97 % weight. In OSN, PBI-FT achieved 2.1 LMH/bar ethanol permeance with > 97 % Rose Bengal rejection, showing superior separation even after 168 h DMF exposure. This sustainable technique yields robust nanofiltration membranes for efficient separation processes in challenging industrial environments.

本研究提出了一种省时、两步的改性策略，以显著提高聚苯并咪唑（PBI）膜对酸和有机溶剂的抗性，针对工业应用中的低ph水和有机溶剂纳滤（OSN）。绿色溶剂基水性芬顿反应预处理膜，通过增强链相互作用提高化学和热稳定性。随后的硫醇-烯点击化学交联引入了关键的柔韧性，补偿了芬顿引起的脆性。这种增效PBI-FT膜在70% % HNO3（保持 >； 80 % MgSO4的截除率）和高极性非质子溶剂（DMAc， DMF， NMP）中表现出显著的稳定性，保持 >； 97 %的重量。在OSN中，PBI-FT达到2.1 LMH/bar的乙醇渗透率， >； 97% %的玫瑰拒除率，即使在168 h的DMF暴露后也显示出优越的分离效果。这种可持续的技术产生强大的纳滤膜，在具有挑战性的工业环境中进行有效的分离过程。

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引用次数: 0

Hydrogen production for a decarbonized future: a review of production technologies 面向脱碳未来的氢生产：生产技术综述

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-20 DOI: 10.1016/j.jiec.2025.07.047

Zahra Gholami , Fatemeh Gholami , Josef Šimek , Kateřina Svobodová , Mohammadtaghi Vakili

Hydrogen is increasingly viewed as an essential element in the global transition toward low-carbon and sustainable energy systems. This review systematically evaluates the major hydrogen production pathways, spanning mature fossil-based processes, steam methane reforming, dry methane reforming, catalytic methane decomposition, and coal gasification, to emerging renewable routes including biomass gasification, water electrolysis, photolytic methods, and biological/biochemical processes. Each technology is critically assessed through integrated techno-economic and environmental analyses, examining efficiency, carbon intensity, technological readiness levels, and scalability potential. Life cycle assessments reveal that conventional methods, while cost-effective ($1.25–2.27/kg H₂), generate substantial CO₂ emissions (9–20 kg CO₂-eq/kg H₂). Conversely, renewable pathways demonstrate significantly lower environmental impacts but face economic and technological barriers limiting commercial deployment. Key challenges identified include catalyst deactivation, high capital costs for electrolyzers, and low efficiencies in photolytic systems (∼5%). The review establishes strategic research priorities: developing durable, cost-effective catalysts; advancing high-temperature electrolysis technologies; integrating renewable energy systems; and scaling photobiological platforms. This analysis provides actionable insights for researchers, industry stakeholders, and policymakers to accelerate hydrogen technology development and deployment, supporting the transition toward a sustainable, hydrogen-based energy economy aligned with net-zero emission targets.

氢越来越被视为全球向低碳和可持续能源系统过渡的重要因素。本文系统地评价了主要的制氢途径，从成熟的化石制氢、蒸汽甲烷重整、干甲烷重整、催化甲烷分解和煤气化，到新兴的可再生制氢途径，包括生物质气化、水电解、光解方法和生物/生化过程。通过综合技术经济和环境分析，检查效率、碳强度、技术准备水平和可扩展性潜力，对每种技术进行严格评估。生命周期评估显示，传统方法虽然具有成本效益（1.25-2.27美元/千克H2），但会产生大量的二氧化碳排放（9-20 千克二氧化碳当量/千克H2）。相反，可再生能源对环境的影响要小得多，但面临限制商业部署的经济和技术障碍。确定的主要挑战包括催化剂失活，电解槽的高资本成本以及光解系统的低效率（约5%）。审查确定了战略研究重点：开发耐用、成本效益高的催化剂；推进高温电解技术；整合可再生能源系统；缩放光生物平台。该分析为研究人员、行业利益相关者和政策制定者提供了可操作的见解，以加速氢技术的开发和部署，支持向可持续的氢能源经济过渡，并与净零排放目标保持一致。

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引用次数: 0

Room temperature oxidative desulfurization in the presence of new hydrophobic catalysts based on sulfated alumina 基于硫酸盐氧化铝的新型疏水催化剂的室温氧化脱硫

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-17 DOI: 10.1016/j.jiec.2025.07.039

Nina V. Arzyaeva , Robert E. Mustakimov , Gleb V. Nikolaevich , Konstantin S. Salnikov , Andrei A. Novikov , Anna V. Vutolkina , Argam V. Akopyan

Herein new hydrophobic molybdenum-containing catalysts based on sulfated alumina were synthesized and applied for room temperature ODS. The synthesized materials were characterized by the following methods: XRF, SEM, TEM, low-temperature N₂ adsorption–desorption, FT-IR, TGA, wetting edge angle. Sulfated alumina can be modified with hydrophobic alkylsilanes up to 10 % by weight while maintaining the support structure. The hydrophobic properties of the catalyst are a key factor influencing the efficiency of desulfurization in a biphase system. Octyl-chain modified 10oct/5Mo/S catalyst show significantly better results than propyl-chain 10pr/5Mo/S and unmodified 5Mo/S. Wetting edge angle of 10oct/5Mo/S is 128° and significantly higher than for 10pr/5Mo/S (44.5°) and 5Mo/S (27°). Under the optimized conditions (5.0 mass% of catalyst, H₂O₂:S molar ratio of 4:1) in presence of 10oct/5Mo/S dibenzothiophene can be completely oxidized in 15 min at room temperature. Under these conditions, the conversion of competitive naphthenic and aromatic hydrocarbon substrates at room temperature does not exceed 4 %, while at 50 ℃ it varies in the range of 12–35 %. For the first time, the possibility of desulfurization of a real diesel fraction at room temperature with a desulfurization degree of 78 % has been demonstrated in the presence of 5.0 mass% of 10oct/5Mo/S, H₂O₂:S molar ratio of 4:1.

本文合成了一种基于硫酸盐氧化铝的新型疏水含钼催化剂，并将其应用于室温ODS。采用XRF、SEM、TEM、低温N2吸附-解吸、FT-IR、TGA、润湿边角等方法对合成材料进行表征。硫酸化氧化铝可以用疏水烷基硅烷改性，重量可达10%，同时保持支撑结构。催化剂的疏水性能是影响双相体系脱硫效率的关键因素。辛链改性的10oct/5Mo/S催化剂的效果明显优于丙链改性的10pr/5Mo/S和未改性的5Mo/S催化剂。10oct/5Mo/S的润湿边缘角为128°，显著高于10pr/5Mo/S的44.5°和5Mo/S的27°。在最佳条件下（催化剂质量% 5.0，H2O2:S摩尔比为4:1），在10oct/5Mo/S存在下，二苯并噻吩在室温下可在15min内完全氧化。在此条件下，竞争性环烷烃和芳烃底物在室温下的转化率不超过4%，而在50℃时的转化率在12 - 35%之间。首次证明了在质量为5.0 %的10oct/5Mo/S、H2O2:S摩尔比为4:1的条件下，柴油馏分在室温下脱硫的可能性，脱硫度为78%。

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引用次数: 0

Structural and luminescence properties of Tb3+-doped Na2Gd2B2O7 phosphors for LED applications: Judd–Ofelt analysis and alkali co-doping effects 用于LED的Tb3+掺杂Na2Gd2B2O7荧光粉的结构和发光性能：Judd-Ofelt分析和碱共掺杂效应

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-17 DOI: 10.1016/j.jiec.2025.07.037

G. Souadi , M.B. Coban , U.H. Kaynar , H. Aydin , S.Cam Kaynar , V. Onar , A. Canimoglu , Hussain J Alathlawi , N. Can

In this study, we report the structural and luminescent properties of Tb³⁺-activated Na₂Gd₂B₂O₇ (NGBO) phosphors synthesized via a microwave-assisted gel combustion method. The effect of alkali ion co-doping (K⁺, Li⁺) on emission efficiency, crystal structure, and color purity was systematically investigated under near-UV excitation (λ_ex = 377 nm). X-ray diffraction confirmed the formation of a single-phase monoclinic structure, while Fourier-transform infrared (FTIR) spectroscopy and Raman spectra revealed preserved BO₃/BO₄ units with minor vibrational shifts. The NGBO:0.02 Tb³⁺ sample showed strong green emission at 542 nm (⁵D₄ → ⁷F₅), with the highest intensity at 2 wt% Tb³⁺, prior to concentration quenching. Judd–Ofelt (J-O) analysis gave Ω₄ = 0.41 × 10_-²⁰ cm² and Ω₆ = 0.64 × 10_-²⁰ cm², indicating favorable asymmetric environments. Notably, temperature-dependent PL studies exhibited negative thermal quenching up to 500 K, attributed to thermally released trapped carriers. Time-resolved photoluminescence (PL) revealed lifetimes up to 1.27 ms, enhanced by alkali doping due to reduced non-radiative losses. Co-doped samples showed tunable Commission Internationale de l’Éclairage (CIE) coordinates (x = 0.2728–0.3110, y = 0.3061–0.4508), approaching white-light emission. These results position NGBO:Tb³⁺ as a promising, thermally stable phosphor for solid-state lighting and optical sensing.

在这项研究中，我们报道了用微波辅助凝胶燃烧法合成的Tb3+活化的Na2Gd2B2O7 （NGBO）荧光粉的结构和发光性能。在近紫外激发（λex = 377 nm）下系统研究了碱离子共掺杂（K+, Li+）对发光效率、晶体结构和颜色纯度的影响。x射线衍射证实了单斜相结构的形成，傅里叶变换红外（FTIR）光谱和拉曼光谱显示BO3/BO4单元保留，振动位移较小。NGBO:0.02 Tb3+样品在542 nm （5D4→7F5）处显示出较强的绿色发光，在浓度猝灭前，在2 wt% Tb3+处强度最高。Judd-Ofelt （J-O）分析得出Ω4 = 0.41 × 10-20 cm2和Ω6 = 0.64 × 10-20 cm2，表明非对称环境有利。值得注意的是，温度相关的PL研究显示了高达500 K的负热猝灭，这归因于热释放的捕获载流子。时间分辨光致发光（PL）显示寿命高达1.27 ms，碱掺杂由于减少了非辐射损耗而增强。共掺杂样品显示出可调谐的国际委员会Éclairage （CIE）坐标（x = 0.2728-0.3110, y = 0.3061-0.4508），接近白光发射。这些结果表明NGBO:Tb3+是一种有前途的、热稳定的固态照明和光学传感荧光粉。

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引用次数: 0

Microwave-assisted synthesis of Nd-doped La2CuO4 perovskite photocatalysts for enhanced degradation of methyl orange and E. Coli inactivation in wastewater treatment 微波辅助合成nd掺杂La2CuO4钙钛矿光催化剂对废水中甲基橙的强化降解和大肠杆菌的灭活

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-16 DOI: 10.1016/j.jiec.2025.07.038

Saranya Arumugam , Murad Alsawalha , Priya Srivastava , AnbuMegala Murugesan , Orawan Rojviroon , Ranjith Rajendran , Natacha Phetyim , Thammasak Rojviroon

The development of efficient perovskite photocatalysts remains a pivotal area of research for advanced water treatment technologies. In this study, Nd-doped La₂CuO₄ (La_2-XNd_XCuO₄) perovskite photocatalysts were synthesized via a facile microwave-assisted combustion method. Comprehensive characterization revealed that the incorporation of Nd³⁺ ions into the La₂CuO₄ lattice significantly modified the structural, optical, and electronic properties of the material, collectively enhancing its photocatalytic degradation efficiency. Among the prepared compositions, La_1.75Nd_0.25CuO₄ (LNCO3) exhibited the most remarkable performance, achieving a Methyl Orange (MO) degradation efficiency of 93 % (k = 0.0191 min⁻¹), substantially higher than that of pristine La₂CuO₄ (72 %; k = 0.0088 min⁻¹). Kinetic analyses confirmed that the photodegradation process follows a pseudo-first-order model. Radical scavenging experiments and Electron Paramagnetic Resonance (EPR) analysis demonstrated that superoxide radicals (^•O₂⁻) and hydroxyl radicals (^•OH) were the predominant reactive oxygen species responsible for pollutant degradation. The photocatalyst also maintained excellent stability and reusability over six consecutive cycles without significant loss of activity. In addition to MO degradation, LNCO3 displayed superior antibacterial activity against Escherichia coli (E. coli) under visible-light irradiation, highlighting its dual functionality for chemical and biological contaminant removal. These findings underscore the potential of Nd-doped La₂CuO₄ as a robust photocatalyst for environmental remediation.

高效钙钛矿光催化剂的开发仍然是先进水处理技术研究的关键领域。本研究采用微波辅助燃烧法合成了掺钕La2CuO4 （La2-XNdXCuO4）钙钛矿光催化剂。综合表征表明，在La2CuO4晶格中加入Nd3+离子显著改变了材料的结构、光学和电子性能，共同提高了其光催化降解效率。在制备的组合物中，La1.75Nd0.25CuO4 （LNCO3）表现出最显著的性能，对甲基橙（MO）的降解效率为93% (k = 0.0191 min−1)，大大高于原始La2CuO4 （72%, k = 0.0088 min−1）。动力学分析证实了光降解过程遵循伪一阶模型。自由基清除实验和电子顺磁共振（EPR）分析表明，超氧自由基（•O2−）和羟基自由基（•OH）是污染物降解的主要活性氧。该光催化剂在连续六个循环中也保持了优异的稳定性和可重复使用性，而没有明显的活性损失。除了对MO的降解外，LNCO3在可见光照射下对大肠杆菌（E. coli）表现出优异的抗菌活性，突出了其去除化学和生物污染物的双重功能。这些发现强调了nd掺杂La2CuO4作为一种强大的环境修复光催化剂的潜力。

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引用次数: 0