4.7 Article

Rapid and direct magnetization of goethite ore roasted by biomass fuel

Journal

SEPARATION AND PURIFICATION TECHNOLOGY
Volume 94, Issue -, Pages 34-38

Publisher

ELSEVIER
DOI: 10.1016/j.seppur.2012.04.008

Keywords

Biomass fuel; Reduction roasting; Goethite ore; Magnetization

Funding

  1. Fundamental Research Founds for National University, China University of Geosciences (Wuhan)

Ask authors/readers for more resources

Biomass is a renewable and carbon neutral solid fuel. Utilization of biomass in iron ore roasting process as heating agent and reducing agent contributes to energy conservation and emission reduction, and can partially replace for coal and coke. The biomass instead of coke was mixed together with iron ore powder from the north of Hainan province into ball roasting process to investigate the effects of mixture composition, reduction temperature, reaction time, the thermal reduction and magnetic properties of the mixture. The results show that the reduction temperature, reaction time and dosage of the biomass are correlated to the quality of the reduction and the magnetism of the iron ore, within the experimental conditions. The mechanism of the biomass reducing the weakly magnetic goethite into stronger magnetic iron oxide has been discussed. The results show that the goethite ores is dramatically reduced and magnetized by about 20 wt.% biomass at low roasting temperature. Application of biomass energy in iron ores roasting process is prospective to the effective use of biomass and for decreasing the consumption of fossil fuels in the steelmaking process. (C) 2012 Elsevier B.V. All rights reserved.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Article Chemistry, Physical

Semiconductor-ionic properties and device performance of heterogeneous La-doped CeO2-ZnO nanocomposites

Xin Chen, Bao Dong, Quazi Arif Islam, Huaibing Song, Yan Wu

Summary: Heterogeneous La-doped CeO2 (LCO)-ZnO nanocomposites with high Zn/Ce ratio demonstrated excellent photoactivity and solid oxide fuel cell performance, making them a potential candidate for renewable energy conversion to electricity.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

Article Chemistry, Physical

Developing cuprospinel CuFe2O4-ZnO semiconductor heterostructure as a proton conducting electrolyte for advanced fuel cells

Sara Paydar, Nabeela Akbar, Quan Shi, Yan Wu

Summary: The interfacial properties of CuFe2O4 (CFO)-ZnO composite electrolyte have a crucial impact on the ionic conductivity of solid batteries and solid oxide fuel cells. Optimizing the ratio between CFO and ZnO can enhance the proton conductivity, leading to surprising fuel cell performance. This work opens a new perspective for semiconductor materials to be developed as electrolytes based on their tunable band structure.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

Article Chemistry, Physical

Tuning an ionic-electronic mixed conductor NdBa0.5Sr0.5Co1.5Fe0.5O5+δ for electrolyte functions of advanced fuel cells

Nabeela Akbar, Sara Paydar, Yan Wu

Summary: By compounding a proton conductor with a mixed conductor, the performance and power output of solid oxide fuel cells can be significantly improved, with interfacial conduction playing a crucial role in ion transport processes.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

Article Chemistry, Physical

Green synthesis of faujasite-La0.6Sr0.4Co0.2Fe0.8 O3-δ mineral nanocomposite membrane for low temperature advanced fuel cells

Lingyao Li, Quan Shi, Liwen Huang, Chunjie Yan, Yan Wu

Summary: The study prepared a self-supporting mesoporous faujasite mainly using solid waste discharged coal fly ash, composite with LSCF for LTSOFC electrolyte membrane. The increase in faujasite SSA led to improvements in fuel cell performance, demonstrating the potential application of low-cost, environmentally friendly faujasite-LSCF composite in LTSOFC field.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

Article Chemistry, Applied

Two-dimensional ZnS (propylamine) photocatalyst for efficient visible light photocatalytic H2 production

Yichen Yang, Xin Chen, Yufeng Pan, Huaibing Song, Bin Zhu, Yan Wu

Summary: A convenient method was proposed to synthesize two-dimensional ZnS-propylamine hybrid complex materials with traditional solvothermal method, showing prominent photocatalytic activity under visible light irradiation. The optimized hydrogen generation obtained from ZnS-propylamine was up to 1828 mu mol/g under 4 h visible light irradiation. The inorganic-organic coordination effect on optimizing the morphology and structure enlarged reaction sites and accelerated carriers migration, contributing to the high performance in photocatalytic hydrogen production.

CATALYSIS TODAY (2021)

Article Materials Science, Multidisciplinary

Enhanced Nanostructured ZnO-Based Photocatalyst Immobilized by Ink-Jet Printing for Methylene Blue Degradation

Liwen Huang, Fangyuan Chen, Sara Paydar, Yan Wu

Summary: Exploring facile fabrication methods for stable, ordered-structure photocatalysts with high performance is essential for practical applications. In this study, a ZnO-based photocatalyst was deposited using a solution-processing ink-jet printing technique, resulting in promising potential for treating organic pollutants in waste water. The influence of organic solvents, surfactants, and polymers on the properties of the ink was investigated to optimize the performance of the printed films.
Editorial Material Engineering, Electrical & Electronic

Special issue on Perovskite materials

Yan Wu, Baoyuan Wang, Jingjing Chang

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2021)

Article Chemistry, Physical

Nanoparticle exsolution in perovskite oxide and its sustainable electrochemical energy systems

Quazi Arif Islam, Sara Paydar, Nabeela Akbar, Bin Zhu, Yan Wu

Summary: Perovskite oxides exhibit high electrocatalytic activity for energy applications due to their reactivity, adjustable properties, and impurity tolerance. Improving kinetics and stability is crucial for their long-term performance. The exsolution process allows for the generation of catalytically active nanoparticles on the perovskite surface, enhancing electrochemical properties and overall performance in sustainable energy systems.

JOURNAL OF POWER SOURCES (2021)

Article Chemistry, Physical

Performance analysis of LiAl0.5Co0.5O2 nanosheets for intermediate-temperature fuel cells

Sara Paydar, Jin Peng, Liwen Huang, Quan Shi, Nabeela Akbar, Quazi Arif Islam, Akbar Muhammad, Yueming Xing, Jung-Sik Kim, Yan Wu

Summary: In this study, two-dimensional LACO nanosheets coated with LAO layer were found to enhance the performance of intermediate-temperature fuel cells significantly. The LAO coating not only improves ionic conductivity, but also enhances the chemical stability and device performance of LACO. The heterostructure with the built-in local electric field accelerating mechanism provides a novel approach for developing high-performance intermediate-temperature fuel cells.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

Review Electrochemistry

Semiconductor Electrochemistry for Clean Energy Conversion and Storage

Bin Zhu, Liangdong Fan, Naveed Mushtaq, Rizwan Raza, Muhammad Sajid, Yan Wu, Wenfeng Lin, Jung-Sik Kim, Peter D. Lund, Sining Yun

Summary: Semiconductors combined with electrochemistry have become an emerging field in energy materials and technologies, with semiconductor membranes and heterostructure fuel cells being new technological trends. Semiconductors play a key role in energy conversion and storage applications.

ELECTROCHEMICAL ENERGY REVIEWS (2021)

Article Materials Science, Ceramics

Lithium zirconate coated LiNi0.8Co0.15Al0.05O2 as a high-performance electrode material for advanced fuel cells

Shuang Zhao, Liwen Huang, Nabeela Akbar, Yan Wu

Summary: Surface modification of electrode materials can effectively enhance catalytic activity and stability for low-temperature solid oxide fuel cells. In this study, NCAL material with LZO surface coating was successfully synthesized, and it was found that the LZO modified NCAL exhibited superior electrochemical performance.

CERAMICS INTERNATIONAL (2022)

Article Chemistry, Physical

The interfacial ionic transport of two-dimensional ZnAl-mixed metal oxides nanocomposite

Liwen Huang, Xin Chen, Yan Wu

Summary: Exploring environmentally friendly electrolyte materials with high ionic conductivity is crucial for the development of low temperature solid oxide fuel cells. In this study, a two-dimensional ZnAl mixed metal oxides nanocomposite was synthesized and showed high ionic conductivity and power density. The in-situ grown Zn6Al2O9 effectively inhibited electron long-range transmission, while the ZnAl-MMO interface provided a unique proton transport mechanism.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

Article Chemistry, Multidisciplinary

Fast ionic transport in SrTiO3/LaAlO3 heterostructure

Quan Shi, Haijian Zhong, Ming Huang, Bin Zhu, Liwen Huang, Yan Wu

Summary: SrTiO3/LaAlO3 heterostructures were constructed, achieving high ionic conductivity and fuel cell power output due to the important role played by the resultant built-in electric field in fast ionic conduction.

CHEMICAL COMMUNICATIONS (2022)

Article Chemistry, Multidisciplinary

In situ constructed oxygen-vacancy-rich MoO3-x/porous g-C3N4 heterojunction for synergistically enhanced photocatalytic H2 evolution

Yufeng Pan, Bin Xiong, Zha Li, Yan Wu, Chunjie Yan, Huaibin Song

Summary: The photocatalytic hydrogen evolution was enhanced by in situ constructing oxygen-vacancy-rich MoO3-x/porous g-C3N4 heterojunctions and optimizing the MoO3-x precursor content. The presence of oxygen vacancies and high porosity induced more active sites, leading to efficient charge separation and enhanced photocatalytic performance for hydrogen evolution.

RSC ADVANCES (2021)

Review Chemistry, Applied

Layered double hydroxide photocatalysts for solar fuel production

Kailin Wang, Tianqi Wang, Quazi Arif Islam, Yan Wu

Summary: Semiconductor photocatalysis for splitting water or reducing CO2 to produce H-2 or hydrocarbon fuels is a promising approach. Layered double hydroxides (LDHs) have unique structures but face limitations in application, leading scholars to explore ways to enhance their energy conversion efficiency.

CHINESE JOURNAL OF CATALYSIS (2021)

Article Engineering, Chemical

A tough double-network ion gel membrane based on poly (ionic liquid) for efficient carbon capture

Yunfei Yu, Xue Yang, Chenchen Zhang, Jie Chen, Wei Lin, Jianqiang Meng

Summary: This study reports an environmentally friendly and simple approach for preparing double-network (DN) ion gel membranes with high strength and excellent gas separation performance. By optimizing crosslinking density, mass ratio, and the type and content of free ionic liquid, the mechanical and gas separation properties of the DN membrane are improved.

SEPARATION AND PURIFICATION TECHNOLOGY (2024)

Article Engineering, Chemical

An innovative dual-strengthening pretreatment to improve Li and Co leaching in spent lithium-ion batteries: Pyrolysis combined with mechanical grinding

Si-qi Jiang, Qiang Gao, Xi-guang Li, Chao-zhu Deng, Jun Qiu, Xiang-nan Zhu

Summary: A dual-strengthening pretreatment method is proposed to remove PVDF more efficiently and enhance the leaching of LiCoO2. Experimental results show that dual-strengthening pretreatment can effectively remove PVDF and significantly improve the leaching efficiency compared to single pretreatment methods.

SEPARATION AND PURIFICATION TECHNOLOGY (2024)

Article Engineering, Chemical

Rapid fabrication of composite membranes based on conjugated microporous polymers: Microstructural design for performance optimization

Zengchi Hu, Xiaoyu Wang, Xiaohui Zhang, Xue Li, Jiangbin Xia

Summary: The rapid fabrication of high-performance composite membranes based on CMPs using simple and low-cost methods is challenging. In this study, three CMPs-based composite membranes were rapidly fabricated with adjustable size using unidirectional diffusion synthesis. The microstructural design enhanced the rejection rates of the membranes and they showed strong hydrolytic resistance, thermal stability, and acid-base resistance. Electrostatic adsorption and the adjustable microstructures significantly varied the repellence of the membranes to different charged molecules.

SEPARATION AND PURIFICATION TECHNOLOGY (2024)

Article Engineering, Chemical

Dual nature brilliant adsorbent engineering by converting an Al-based MOF to defect rich quasi-MOF

Farzaneh Rouhani, Matineh Ayedi, Nasser Safari

Summary: Introducing defects into porous metal-organic frameworks is important for improving their adsorption performance. Quasi-MOFs, an underutilized variant of large-scale, fundamentally deficient MOFs, have been found to have substantial amounts of unsaturated metal sites to offset the drawbacks of MOFs. In this study, a quasi-MOF was produced using a water-stable MOF and demonstrated significantly improved phosphate adsorption capability due to the presence of defect sites.

SEPARATION AND PURIFICATION TECHNOLOGY (2024)

Article Engineering, Chemical

Liquid-liquid extraction of sinapic acid from a mustard seed by-product using a hollow fiber membrane contactor

Valentin Reungoat, Morad Chadni, Louis M. M. Mouterde, Fanny Brunissen, Florent Allais, Helene Ducatel, Irina Ioannou

Summary: This study focuses on the recovery of sinapic acid using liquid-liquid extraction assisted by a hollow fiber membrane contactor from an aqueous feed obtained through the hydrolysis of mustard bran. The screening of solvents of different chemical nature showed that all tested solvents had an extraction efficiency of more than 80% for pH < 5. Four solvents were selected for use in the hollow fiber membrane contactor, and the volatile solvents showed higher mass transfer coefficients compared to non-volatile solvents. The extraction efficiency was intensified by increasing the initial concentration of sinapic acid and the feed-to-solvent ratio. CPME was found to have optimal recovery efficiency at a phase ratio of 8:1, yielding 0.9 g of sinapic acid per liter of CPME used.

SEPARATION AND PURIFICATION TECHNOLOGY (2024)

Article Engineering, Chemical

Hydrophobic deep eutectic solvents for the direct leaching of nickel laterite ores: Selectivity and reusability investigations

Takahiro Sakamoto, Takafumi Hanada, Hayate Sato, Mayu Kamisono, Masahiro Goto

Summary: The emergence of the battery society has led to a high demand for battery metals, resulting in a strain on their supply. This study introduces a novel technique using a hydrophobic deep eutectic solvent (DES) for leaching and recovering battery metals from low-grade nickel laterite ores. The DES enables selective leaching and recovery of the metals, offering a promising pathway for the extraction of critical battery metals.

SEPARATION AND PURIFICATION TECHNOLOGY (2024)

Article Engineering, Chemical

Quantification of overcompensated cations in layer-by-layer membrane by Orange yellow II

Rongrong He, Jiarui Chen, Chunyao Zhang, Dan Lu, Lin Zhang, Tao He

Summary: Researcher has developed a method to quantify the charge density in nanofiltration (NF) membrane separation layer and applied it in NF membranes that can separate Mg2+ and Li+. The results showed that overcompensated amine groups played a major role, and there was a linear relationship between charge density and coating bi-layers or PAH layers.

SEPARATION AND PURIFICATION TECHNOLOGY (2024)

Article Engineering, Chemical

Insight of multifunctional Cu-alginate hydrogel membrane for precise molecule/ion separation applications

Zhijian Zhang, Min Chen, Zhe Lin, Zhichao Yang, Yafeng Du, Zhihui Chen, Zhenhao Yang, Kongyin Zhao, Ligang Lin

Summary: Membrane technology plays an important role in molecular/ion separation processes, but faces challenges such as membrane fouling. This study introduces a new ion-crosslinking method to fabricate copper alginate hydrogel membranes with improved mechanical strength and antimicrobial capabilities. The membranes exhibit excellent separation performance and enhanced long-term molecule/ion separation through improved anti-swelling properties. Molecular dynamics simulations and life cycle analysis highlight the pore structure and environmental friendliness of the hydrogel membranes. These findings provide valuable insights for developing sustainable hydrogel membranes with stable performance and high separation efficiency.

SEPARATION AND PURIFICATION TECHNOLOGY (2024)

Article Engineering, Chemical

Activation of persulfate by magnetic Mg/Mn-layered double oxide-doped biochar composite for ciprofloxacin removal and bacterial inactivation

Dongmei Liu, Aiying Guo, Yanling Qi, Zhixin Ji, Hongjuan Li, Zhiwei Zhang, Xinyue Zhang, Kunze Wu, Aijun Cai

Summary: In this study, a stable magnetic Mg/Mn-layered double oxide-doped biochar composite (MgMnLDO-MBC) was prepared and successfully used for the removal of antibiotics and bacteria from wastewater. The composite exhibited enhanced surface areas, adsorption sites, and free radicals, leading to improved catalytic activity. The effects of different factors on the removal efficiency were evaluated, and the composite showed good reusability.

SEPARATION AND PURIFICATION TECHNOLOGY (2024)

Article Engineering, Chemical

Rapid peroxymonosulfate activation by self-assembly of layered fluorine-free MXene with nanofibrous Co3O4: Antibiotic degradation and electron transfer mechanism

Feng Wang, Zhaoyong Bian, Yaru Zhang, Wenchao Yu, Qiang Zhang, Hui Wang

Summary: In this study, a nanofibrous layered structure of Ff-Ti3C2Tx-Co3O4 was prepared by self-assembling nanofibrous Co3O4 with lamellar fluorine-free MXene (Ff-Ti3C2Tx). The Ff-Ti3C2Tx-Co3O4 exhibited excellent catalytic activity for degradation, resistant to ionic interference, and maintained high removal efficiency of sulfamethoxazole (SMX) in municipal wastewater. The rapid SMX degradation involved fast electron transfer in redox cycles with PMS and the generation of 1O2 via PMS ->center dot O2  -> 1O2. This work provides new insights into antibiotic degradation mechanisms and electron transfer based on PMS activation.

SEPARATION AND PURIFICATION TECHNOLOGY (2024)

Article Engineering, Chemical

Differently charged polyacrylamides (PAMs) significantly affect adsorption affinity and associated floc growth behaviors during ballasted flocculation: Performance and mechanism

Weipeng He, Jiacheng Luo, Yujie Wu, Tianhao Luo, Chen Tang

Summary: This study comparatively evaluated the role of cationic, anionic, and nonionic polyacrylamides (PAMs) in ballasted flocculation of clay suspensions under different aluminum sulfate (AS) coagulant dosages. The selection of PAMs and AS dosage had a significant influence on the size and shear resistance of ballasted floc aggregates.

SEPARATION AND PURIFICATION TECHNOLOGY (2024)

Article Engineering, Chemical

Polymeric membrane with nanohybrids of Cu nanocomposites and metalloporphyrin-based nanosheets for enzyme-like catalytic degradation of Congo Red

Lixian Wang, Lizhi Zhao, Didi Si, Zhixin Li, Huiqin An, Hui Ye, Qingping Xin, Hong Li, Yuzhong Zhang

Summary: Metalloporphyrin-based nanozymes integrated with poly (vinylidene fluoride) membrane show high catalytic activity and reusability for the decolorization of Congo Red dye in continuous flow process.

SEPARATION AND PURIFICATION TECHNOLOGY (2024)

Article Engineering, Chemical

Facile synthesis of ball milling and magnetization co-modified sludge-derived biochar for efficient adsorbing environmental concentration sulfamethoxazole from various waters: Performance and mechanism

Yongfei Ma, Chenyu Zeng, Yongzhen Ding, Jiayi Tang, Ondrej Masek, Zhikang Deng, Rui Mu, Zulin Zhang

Summary: In this study, sludge-derived biochar (SBC) was functionalized with various iron salts to enhance its adsorption ability for sulfamethoxazole (SMX) and magnetic collection performance. Ball milling was further employed to treat the optimal iron salt functionalized SBC (MSBC), resulting in ball milled SBC (BMSBC) with improved adsorption performance for SMX. The dominant driving mechanism for SMX adsorption onto BMSBC was confirmed to be multiple physicochemical forces, including 7C-7C conjugation, pore filling, H-bonding, Fe-O complexation, and electrostatic interactions. BMSBC exhibited favorable adsorption ability for SMX in actual waters and could be easily collected within 1 min due to its magnetic sensitivity.

SEPARATION AND PURIFICATION TECHNOLOGY (2024)

Article Engineering, Chemical

Facile fabrication of non-fluorine polymer brush/loop surfaces for oil/water separation and self-cleaning applications

Jinglin Tan, Xiaohui Mao, Wenjihao Hu, Hongbo Zeng

Summary: This study investigates the influence of PDMS chain architectures on surface properties and reveals that PDMS coatings with looped structures exhibit superior hydrophobicity, self-cleaning, and water sliding compared to coatings with linear structures. Additionally, both looped and linear PDMS coated stainless steel mesh/polyester fibers show efficient separation of oil/water mixture.

SEPARATION AND PURIFICATION TECHNOLOGY (2024)

Article Engineering, Chemical

Fabrication of sandwich-structured capacitor containing core@shell polystyrene@graphene oxide microspheres for switchable removal of dyes from water by dielectrophoresis force

Wei-Liang Chen, Chih-Chia Cheng, Chien-Hsing Lu, Jem-Kun Chen

Summary: This study designs a novel sandwich-structured capacitor that reduces the absorption time of pollutants using dielectrophoresis force. By coating graphene oxide on polystyrene microspheres as adsorbents and encapsulating them within the capacitor, the adsorption rate is significantly enhanced. Additionally, frequency manipulation allows for the recycling of adsorbents and concentration of dyes, minimizing secondary pollution.

SEPARATION AND PURIFICATION TECHNOLOGY (2024)