Adsorption最新文献

{"title":"The impact of design and operational parameters on the optimal performance of direct air capture units using solid sorbents","authors":"Adam Ward,&nbsp;Maria M. Papathanasiou,&nbsp;Ronny Pini","doi":"10.1007/s10450-024-00526-y","DOIUrl":"10.1007/s10450-024-00526-y","url":null,"abstract":"<div><p>Direct capture of CO<span>(_2)</span> from ambient air is technically feasible today, with commercial units already in operation. A demonstrated technology for achieving direct air capture (DAC) is chemical separation of CO<span>(_2)</span> in a steam-assisted temperature-vacuum swing adsorption (S-TVSA) process. However, the potential to develop scalable solutions remains high, requiring a detailed understanding of the impact of both process design and operation on the performance of the DAC unit. Here, we address this knowledge gap by presenting a state-of-the-art process simulation tool for the purification of CO<span>(_2)</span> from ambient air by a 5-step S-TVSA process. By considering the benchmark adsorbent APDES-NFC, we conduct multi-objective productivity/energy usage optimization of the DAC unit, subject to the requirement of producing a high purity CO<span>(_2)</span> product (<span>(ge 95)</span>%). For the base case scenario, we find a maximum productivity of Pr<span>(_{max } = 6.20)</span> kg/m<span>(^3)</span>/day and a minimum specific equivalent work of W<span>(_{text {EQ},min } = 1.66)</span> MJ/kg. While in reasonable agreement with published data, our results indicate that the description of both competitive adsorption and adsorption kinetics are key factors in introducing uncertainty in process model predictions. We also demonstrate that the application of formal optimization techniques, rather than design heuristics, is central to reliably assess the process performance limits. We identity that system designs employing moderate CO<span>(_2)</span> sorption kinetics and contactors with low length-to-radius ratios yield the best performance in terms of system productivity. Finally, we find that moderate-high ambient relative humidities (50–75%) offer significantly favourable performance, and that a wide range of feed temperatures (5–30 <span>(^circ)</span>C) can be accommodated via process optimization without a significant impact on performance.</p></div>","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"30 7","pages":"1829 - 1848"},"PeriodicalIF":3.0,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10450-024-00526-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142191546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Bryophyllum pinnatum activated biochar for competent removal of fluoride from water: sorption and equilibrium studies","authors":"Pooja Kashyap,&nbsp;Jyotsna Kaushal","doi":"10.1007/s10450-024-00529-9","DOIUrl":"10.1007/s10450-024-00529-9","url":null,"abstract":"<div><p>With the advent of industrialization and other anthropogenic activities, water sources are being contaminated incrementally. Groundwater contaminated by fluoride has been a major global concern for public health in recent years. Various types of materials have been employed for the removal of contaminants from water. Among all, biochar has gained attention in recent times. Biochar is a carbon-rich and environmentally friendly pollutant adsorbent important in remediating inorganic contaminants like fluoride from water. In the current study, <i>Bryophyllum pinnatum-</i>raw biochar and activated biochar doped with aluminum were prepared from the leaves of the <i>Bryophyllum pinnatum</i> (<i>B. pinnatum</i>) plant. The removal efficiency of raw/pristine biochar (RB) and <i>Bryophyllum pinnatum</i>-activated biochar (BAB) was investigated by treating both biochars with fluoride-contaminated water. The biochar was characterized using FTIR, FESEM-EDX, XRD, BET, and pH_pzc techniques, which showed that the positive charges and adsorption sites were created due to the effective loading of the metal hydroxide on the biochar surface during BAB formation which played a significant role in defluoridation. To investigate the effect of different factors on the percentage of fluoride removal, batch tests were carried out. Kinetic and isotherm models were also applied to evaluate the mode of action and mechanistic approach. The results revealed that BAB exhibited a higher fluoride removal efficiency of 92% compared to RB and followed the pseudo-second-order model and Langmuir model showing chemisorption. Thus, the prepared activated biochar holds a good potential to be used as a sorbent for defluoridation.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"30 7","pages":"1849 - 1864"},"PeriodicalIF":3.0,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142191559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable biochar adsorbents for dye removal from water: present state of art and future directions","authors":"Arun Lal Srivastav,&nbsp;Lata Rani,&nbsp;Prakriti Sharda,&nbsp;Akansha Patel,&nbsp;Naveen Patel,&nbsp;Vinod Kumar Chaudhary","doi":"10.1007/s10450-024-00522-2","DOIUrl":"10.1007/s10450-024-00522-2","url":null,"abstract":"<div><p>The wastewater generated from the industrial activities are considered as one of the prime sources of water contamination. The yearly production of synthetic dyes are ~ 700 tons worldwide. Synthetic dyes have detrimental effects on the human as well as animal health. Therefore, there is an urgent need to treat the water containing synthetic dyes. Dye treatment methods can be divided in to three categories namely; chemical, physical, and biological. The chemical procedure includes; photocatalytic degradation, ozonation, fenton reagent, and aerobic and anaerobic degradation are the examples of the biological procedures. However, the physical procedures consists of filtration/coagulation, adsorption, ion exchange etc. Further, these techniques may have its own drawbacks including generation of hazardous sludge and expensive to operate along with high maintenance cost. The most appealing techinque for abatement of dye from the contaminated water is adsorption owing to its ecofriendly, flexibility, affordability, sustainability, and abundant availability of raw materials to produce adsorbents. It has been noticed that over 80% of dye adsorption processes on adsorbent surfaces were endothermic in nature which means the adsorption processes were self-sustaining in terms of energy consumption. In present review paper, the discussion has been focused on the removal of anionic dyes from water using low-cost biochar adsorbents which is not reported in any previous review papers. Further, it will significantly help to the budding researchers to develop continuous water treatment system (in column mode), if wish to work of anionic dyes remediation from water.</p></div>","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"30 7","pages":"1791 - 1804"},"PeriodicalIF":3.0,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141940418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Competitive Adsorption Studies of MgFe2O4-Biochar Nanocomposites for the Removal of Chromium and Nickel Ions in Single and Binary Metal Ion System","authors":"Gautham Kurup,&nbsp;Neeraj Krishnan,&nbsp;Vaishnav M. R.,&nbsp;Roopak A. R.,&nbsp;K. Nithya,&nbsp;Asha Sathish,&nbsp;Selvaraju Sivamani,&nbsp;Aswathy S. Cheruvally","doi":"10.1007/s10450-024-00523-1","DOIUrl":"10.1007/s10450-024-00523-1","url":null,"abstract":"<div><p>The presence of heavy metal ions in water bodies constitutes a significant environmental hazard. The development of sustainable and cost-effective adsorbent materials for their removal is an urgent priority. In alignment with this critical objective, the present study explores the potential of a novel composite material for water remediation. This composite, fabricated from biochar and magnesium ferrite nanoparticles, targets the removal of hexavalent chromium and divalent nickel. While prior research has explored the application of rice husk as an adsorbent, no investigation, to our knowledge, has examined the potential of magnesium ferrite-rice husk composites for this purpose. Initial screening identified the biochar-magnesium ferrite composite (pre-calcination) as the most effective adsorbent. This composite displayed a superior surface area (151 m²/g) compared to calcined magnesium ferrite (91 m²/g) and achieved exceptional removal efficiencies for both chromium (50 mg/g) and nickel (54 mg/g). Optimal chromium removal occurred at pH 1 with a 110-minute contact time, while nickel favored a pH of 6 and the same contact time. The adsorption process was characterized as physisorption and endothermic. Notably, the composite exhibited efficient regeneration (82% for nickel and 90% for chromium) using simple acid/base solutions. The BJH analysis of pore characteristics indicated an average pore diameter of 1.5365 nm and a total pore volume of 0.17 cm³/g. The research findings demonstrate the composite’s effectiveness as a sustainable adsorbent for capturing heavy metal ions from water.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"30 7","pages":"1805 - 1827"},"PeriodicalIF":3.0,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141940419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polyaniline grafting induces abundant active sites on red soil for fluoride removal from wastewater","authors":"Koru Jebeno Dutebo,&nbsp;Tassew Belete Bahru,&nbsp;Megersa Feyisa,&nbsp;Israel Leka Lera","doi":"10.1007/s10450-024-00502-6","DOIUrl":"10.1007/s10450-024-00502-6","url":null,"abstract":"<div><p>Water pollution is currently a critical global issue. Various research groups have developed active adsorbent materials. This study aims to enhance the adsorption of water pollutants, particularly fluoride, by modifying the electronic structure of red soil through in-situ chemical oxidative polymerization techniques. The synthesized materials were characterized using techniques including powder XRD, FT-IR, UV spectroscopy, and Conductometer, followed by testing their adsorption performance. The XRD analysis revealed that while the crystal structures of embedded red soil remained amorphous, polyaniline (PANI) and PANI/red soil (RS) nanoparticles became polycrystalline. The maximum adsorption capacity (qmax) of fluoride ions by PANI/RS was determined to be 9.35 mg/g. Optimization experiments showed that PANI/RS exhibited maximum adsorption performance for fluoride ions under specific conditions: pH 4.0, a contact time of 50 min, temperature of 35 °C, and an initial concentration of 15 mg/L with 2 mg of adsorbent, achieving a removal efficiency of 99.9%. Both Langmuir and Freundlich isotherm models demonstrated a good fit with the experimental data, with R² values of 0.94 and 0.95, respectively. This suggests that PANI/RS is an effective adsorbent material for removing fluoride ions from wastewater. Overall, PANI/RS outperformed red soil alone, demonstrating potential for practical application in water treatment processes.</p></div>","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"30 7","pages":"1771 - 1789"},"PeriodicalIF":3.0,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141882715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of biodegradable gum guggul-based hydrogel as an efficient moisture-retaining agent for agricultural applications","authors":"Shabnum Saleem,&nbsp;Kashma Sharma,&nbsp;Amit Kumar Sharma,&nbsp;Vishal Sharma,&nbsp;Vaneet Kumar,&nbsp;Vijay Kumar","doi":"10.1007/s10450-024-00519-x","DOIUrl":"10.1007/s10450-024-00519-x","url":null,"abstract":"<div><p>We prepared guggul gum-based hydrogel (GgG-cl-poly(AA)) through a free radical graft copolymerization mechanism in this work. The preparation was carried out using ammonium persulfate as an initiator, acrylic acid as the monomer, and N, N′-methylenebisacrylamide as the crosslinker. The synthesized hydrogel’s swelling capacity and equilibrium swelling ratio were thoroughly investigated by optimizing various reaction parameters: reaction time, solvent volume, microwave power, crosslinker amount, initiator concentration, and monomer concentration. The swelling results demonstrated that the synthesized hydrogel can attain a maximum percentage swelling of 980% within 3 h in an aqueous solution. The prepared hydrogel sample was characterized using Fourier transform infrared, X-ray diffraction, scanning electron microscopy, nuclear magnetic resonance, and thermogravimetric analysis. The prepared hydrogel was studied for water retention behavior in the soil, water absorbance in the open air at room temperature, reswelling studies, and resistive swelling studies in various salt solutions at different temperatures and pH values. Notably, the crosslinked hydrogel exhibited a reduced swelling capacity across various salt solutions compared to the aqueous solutions. The biodegradation studies were examined in both soil burial and vermicomposting methods for two months, revealing a maximum biodegradation of 95.65% through the vermicomposting method and 87.7% through the soil burial method. The results indicate that the crosslinked hydrogel based on guggul gum is a potential candidate for various agricultural applications.</p></div>","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"30 7","pages":"1749 - 1769"},"PeriodicalIF":3.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141775994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Environment benign Ghee residue – titania based adsorbent for quick removal of methyl orange dye","authors":"Meenal Joshi,&nbsp;Abhijeet R. Kadam,&nbsp;S. J. Dhoble","doi":"10.1007/s10450-024-00520-4","DOIUrl":"10.1007/s10450-024-00520-4","url":null,"abstract":"<div><p>Use of renewable waste material for water treatment is an area of interest. An attempt has been made for preparation of Dairy industry waste <i>Ghee</i> residue (GR) based biogenic adsorbent for removal of dye present in water/waste water. This novel approach contributes in valorisation of dairy industry by- product <i>Ghee</i> residue. The <i>ghee</i> residue was first converted into carbon and processed with the titanium precursor and rare earth metal. This combination yields GR-C/TiO₂/Eu³⁺ adsorbent. A series of adsorbing material was prepared by differing loading of Eu³⁺ keeping ratio of RG-C and TiO₂ constant. Synthesized adsorbents were subjected to characterization studies such as X-Ray Diffraction (XRD) spectroscopy, Brunauer Emmett Teller-Surface Area (BET-SA), Scanning Electron Microscopy (SEM), Fourier Transformed Infra Red spectroscopy (FTIR) etc. XRD pattern shows formation of crystalline anatase phase of TiO₂ with average particle size of 34.9494 nm. SEM image also confirms irregular morphology with particles in nanometer range. BET-surface area of GR-C/TiO₂/Eu³⁺ (1%) was found to be 53.633 m²/g with total pore volume = 8.555e^− 02 cc/g for pores smaller than 18330.1 Å (Radius) at P/Po = 0.99948 and average pore radius was found to be 3.19022e^+ 01 Å indicating mesoporosity of material. Synthesized adsorbents were studied for dye adsorption and GR-C/TiO₂/Eu³⁺ (1%) shows quick and complete removal of 5ppm Methyl orange dye in contact time of less than three minutes at 30-32^oC with the adsorbent dose of 75 mg/10mL. The high adsorption property is attributed to presence of crystalline nanostructured TiO₂ and Eu³⁺ on to the biogenic carbon framework. Langmuir adsorption isotherm data indicates monolayer adsorption with R² value of 0.97. ΔG^o values are in the range of -12.81 to -17.77 KJ mol^− 1 indicating spontaneous adsorption process.</p></div>","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"30 7","pages":"1733 - 1747"},"PeriodicalIF":3.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141775991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modelling carbon dioxide adsorption behaviour on montmorillonite at supercritical temperatures","authors":"Gopika Raveendran,&nbsp;Kumbamutlang War,&nbsp;D. N. Arnepalli,&nbsp;V. B. Maji","doi":"10.1007/s10450-024-00525-z","DOIUrl":"10.1007/s10450-024-00525-z","url":null,"abstract":"<div><p>Expandable clay minerals play a pivotal role in the geological sequestration of greenhouse gases due to their contribution to storage capacity and caprock integrity. The charge-balancing cations in the interlayer space are known to influence carbon dioxide adsorption. The present study investigated the general adsorption behaviour and characteristics of montmorillonite towards CO₂ adsorption at temperatures above critical point, typical to geological sequestration. Modelling on the excess isotherm and absolute isotherm was used to compare the variation of the adsorption behaviour of sodium, potassium and calcium montmorillonite. Excess isotherm modelling using the monolayer Ono-Kondo (O-K) model successfully captured the experimental adsorption. The lateral interaction of the adsorbed molecules on the montmorillonite surface, a variable with the type of cation, remarkably affected the strength of adsorption. The derived adsorbed phase density data confirmed the onset of swelling in montmorillonite at pressures below the critical point. Additionally, the study comprehended the influence of approximations used to derive the absolute isotherm from the experimental isotherm and investigated the validity of common theoretical models to represent adsorption. The study recommended the application of Dubinin-Astakhov (D-A) isotherm with reciprocal van der Waals density approximation or liquid density approximation to model the adsorption of CO₂ on montmorillonite.</p></div>","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"30 7","pages":"1703 - 1716"},"PeriodicalIF":3.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141775993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insights in the adsorption of eco-friendly starch hydrogel","authors":"Paulo H. Fernandes Pereira,&nbsp;Andressa I. C. da Silva,&nbsp;Rennan F. S. Barbosa,&nbsp;Valdeir Arantes,&nbsp;Daniella R. Mulinari,&nbsp;Derval S. Rosa","doi":"10.1007/s10450-024-00509-z","DOIUrl":"10.1007/s10450-024-00509-z","url":null,"abstract":"<div><p>This work prepared a class of starch hydrogel with and without lignin from sugarcane bagasse (5% wt.) and trisodium citrate as a crosslinking agent. The physical and chemical properties of the hydrogels were characterized by Fourier-transformed infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), Thermogravimetric analysis (TGA), and X-ray diffractometry (XRD) techniques. Besides, the swelling degree and the pH of zero point charge (pH_zpc) were evaluated. Hydrogels were tested for the adsorption of potentially toxic elements (PTEs) and dye (methylene blue) by chromatography and UV-vis, respectively. FTIR confirmed that the reticulation of the starch structure successfully occurred, while the inclusion of lignin promoted new interactions that increased pore size, swelling degree, and pH_zpc of the developed hydrogels. The adsorption of cationic metals at pH &lt; pHzpc showed low removal but presented complete adsorption of oxyanion chromium. Moreover, the adsorption of methylene blue presented removal higher than 90%, further enhanced by lignin presence, which presented an adsorption capacity of 99.4 mg.g⁻¹ at 70 min. The hydrogels presented a better fit to the Freundlich isotherm model, indicating that removal is favorable. Thus, using lignin in the hydrogels can enhance their performance and be an alternative to developing new eco-friendly materials.</p></div>","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"30 7","pages":"1685 - 1702"},"PeriodicalIF":3.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141785676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular dynamics study on the diffusion of organosulfur compounds in porous solids","authors":"Yan Feng,&nbsp;Wei Sun,&nbsp;Bin Dai","doi":"10.1007/s10450-024-00524-0","DOIUrl":"10.1007/s10450-024-00524-0","url":null,"abstract":"<div><p>Desulfurization of organosulfur compounds in petrochemical fuels is mainly limited by diffusion in porous solids. Design and optimization of such heterogeneous process need basic knowledge of molecular diffusion inside porous solids. In this work, molecular dynamics method was applied to study the intrinsic pore diffusion and surface diffusion of some common organosulfur compounds of thiophene, benzothiophene and dibenzothiophene in silica pores. Based on the molecular dynamics data, the effects of temperature and pore size on the intrinsic pore diffusion and surface diffusion were investigated by an established mathematic model considering the molecular size effect on diffusion. It was found that the widely used Knudsen diffusion model might overestimate the pore diffusion as much as a few dozens folds, but could be improved by incorporating molecular interaction and molecular size effect into diffusion model. The proportion of mass transfer by surface diffusion in total mass transfer in different pores was estimated. The results exhibited herein convey some basic instruction not only for design pores of porous solids used in hydrodesulfurization or in adsorption desulfurization, but also for optimization of operation conditions for desulfurization processes.</p></div>","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"30 7","pages":"1717 - 1731"},"PeriodicalIF":3.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141785679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}