Journal of Industrial and Engineering Chemistry最新文献

{"title":"Research progress of machine learning in the field of photocatalysis applications","authors":"Kun Li ,&nbsp;Haoyuan Du ,&nbsp;Lei Liu ,&nbsp;Hang Yang ,&nbsp;Junfei Fang ,&nbsp;Dong Li","doi":"10.1016/j.jiec.2025.04.039","DOIUrl":"10.1016/j.jiec.2025.04.039","url":null,"abstract":"<div><div>Photocatalysis<span> is a technology that uses solar energy to drive chemical reactions, and it promotes oxidation–reduction reactions under the condition of light irradiation by photocatalysts<span>, achieving the purification of pollutants, synthesis and transformation of substances, and so on. The essence of photocatalytic technology centers on photocatalysts. Nevertheless, the traditional trial-and-error development process of photocatalytic materials cannot meet the development needs of modern society due to unfavorable factors such as high cost, low efficiency, and lengthy research and development periods. In recent times, the fast advancement of machine learning (ML) technology has opened up new avenues for the design of photocatalysts. With the continuous deep integration of big data and artificial intelligence (AI), machine learning, which is data-driven, has made tremendous progress in the design, screening, and performance prediction of new materials, greatly promoting the research and application of novel materials<span>. This review first introduces the basic process of ML and its commonly used algorithms in materials science, and then focuses on the latest research progress in the use of ML in photocatalytic water splitting for hydrogen production, photocatalytic pollutant degradation, and photocatalytic harmful gas conversion in recent years. Furthermore, it provides a prospect on the existing problems and development prospects of ML in the screening and design of photocatalysts, the prediction of photocatalytic performance, the parameter optimization of photocatalytic processes, and so on.</span></span></span></div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 146-166"},"PeriodicalIF":5.9,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plasma-enabled methane upgrading in a gas-liquid reactor: Optimizing a one-step methanol production process","authors":"Ekow Agyekum-Oduro,&nbsp;Ahmad Mukhtar,&nbsp;Sarah Wu","doi":"10.1016/j.jiec.2025.04.038","DOIUrl":"10.1016/j.jiec.2025.04.038","url":null,"abstract":"<div><div>In this work, methane (CH₄) and ubiquitous water (H₂<span>O) were exploited as reactants in a continuous flow, catalyst-free, nonthermal plasma process to produce methanol at a rate of 21.28 mg/h with a specific yield of 1.46 mg</span>_MeOH/g_CH4<span> and selectivity of 90.8 % among other liquid products. A systematic investigation of process parameters through factorial design screened five process factors, i.e., applied power, gas flow rate<span><span>, liquid flow rate<span>, catalyst loading, and pH. While catalyst loading and pH showed minimal significance, gas flow rate, liquid flow rate, and applied power emerged as the significant factors affecting both production rate and specific yield, though with competing effects where </span></span>higher gas flow rates<span><span><span> enhanced production rates but reduced specific yields. Subsequent optimization using Box-Behnken design determined optimal conditions of 368 W applied power, 273 mL/min methane flow rate, and 51 mL/min water flow rate for maximizing methanol production rate while maintaining high selectivity. </span>OES and NMR analyses revealed a radical-mediated pathway primarily involving methyl and hydroxyl radical coupling for methanol formation. This catalyst-free process showed great promise for cleaner fuel production, reduced greenhouse gas emissions, and efficient utilization of natural gas and </span>biogas resources.</span></span></span></div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 682-691"},"PeriodicalIF":5.9,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of iodine vacancy-modulated dual S-scheme BiOI/BiSI/BiOBr heterojunction for enhanced tetracycline hydrochloride degradation","authors":"Jiexi Wang,&nbsp;Sheng Wang,&nbsp;Chengxiong Xu,&nbsp;Wenju Yu","doi":"10.1016/j.jiec.2025.04.034","DOIUrl":"10.1016/j.jiec.2025.04.034","url":null,"abstract":"<div><div>In this work, an iodine vacancy-modulated dual S-scheme BiOI/BiSI/BiOBr heterojunction was prepared via a hydrothermal method, and its photocatalytic efficiency was assessed through the degradation of tetracycline hydrochloride (TCH). The results reveal that the combined effects of improved visible light absorption, iodine vacancies, S-scheme charge transfer, and electron sacrificial agent significantly enhance photocatalytic activity. Under visible light irradiation for 240 min, the BiOI/BiSI/BiOBr heterojunction achieves an impressive TCH degradation rate of 89.51 %, which is approximately 2.06 times higher than that of BiOBr. Additionally, the heterojunction remains stable throughout the photocatalytic process as long as surface-adsorbed TCH is removed with deionized water and anhydrous ethanol after each cycle. The anion vacancy-modulated dual S-scheme charge transfer offers valuable insights into the photocatalytic oxidation of contaminants.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 639-652"},"PeriodicalIF":5.9,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Current and sustainable approaches in phosphate ore flotation: A review of eco-friendly reagents and their applications","authors":"Zohra Farid,&nbsp;Mohamed Abdennouri,&nbsp;Noureddine Barka,&nbsp;M’hamed Sadiq","doi":"10.1016/j.jiec.2025.04.029","DOIUrl":"10.1016/j.jiec.2025.04.029","url":null,"abstract":"<div><div>The demand for environmental friendliness is increasing as the industrialized world progresses. Froth flotation<span><span><span><span> is widely used in enrichment processes in the phosphate industry due to its low cost and simplicity of use. However, successful flotation processing requires several reagents, mostly synthetic chemicals commonly used in industry. To safeguard the environment, it is crucial to reconsider these chemicals, as their low </span>degradability can harm water resources and human health. As a result, most researchers have paid attention to the flotation separation of phosphate ore using eco-friendly alternative reagents, including </span>natural polymers, biosurfactants, and green chemicals. This review aims to present a comprehensive overview of the wide availability of eco-friendly reagents currently used in phosphate ore flotation. Additionally, the paper will examine the impact of these reagents on flotation performance, such as recovery rates and </span>selectivity<span>. Through this comprehensive analysis, we attempt to highlight the progress and challenges associated with the adoption of green reagents in the phosphate industry, thereby contributing to the development of more sustainable mineral processing practices.</span></span></div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 131-145"},"PeriodicalIF":5.9,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bi-functional hybrid catalysts of pyrochlore Bi2Ru2O7 nanoparticle-reduced graphene oxide nanosheet composites for a lithium-oxygen battery cathode","authors":"Jong Guk Kim ,&nbsp;Yuseong Noh ,&nbsp;Ji-Hun Cha ,&nbsp;Youngmin Kim","doi":"10.1016/j.jiec.2025.04.036","DOIUrl":"10.1016/j.jiec.2025.04.036","url":null,"abstract":"<div><div>For the development of rechargeable lithium-oxygen (Li-O₂) batteries, it has been necessary to solve the issue of sluggish kinetics of both oxygen reduction reaction and oxygen evolution reaction. A bi-functional hybrid catalyst composed of pyrochlore Bi₂Ru₂O₇<span><span> nanoparticles (BRO NPs) and reduced </span>graphene oxide (rGO) sheets was prepared and its catalytic properties were investigated for application in Li-O</span>₂ batteries. As-prepared BRO NPs anchored on rGO composites (BRO@rGO) in O₂-electrode exhibited high initial discharge capacity (<em>ca.</em> 6022.8 mAh g⁻¹). Additionally, the BRO@rGO electrode showed lifetime stability over 56 cyclings with a lower over-potential of 1.15 V at a current density of 200 mA g⁻¹ when the charge/discharge capacity was limited to 500 mAh g⁻¹, as compared with BRO NPs and ketjenblack carbon. This improved performance proves that this composite material of pyrochlore BRO NPs with rGO nanosheets can be promising ORR/OER catalysts for the development of Li-O₂ batteries.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 667-674"},"PeriodicalIF":5.9,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Silver nanowire/partially reduced graphene oxide-based nanocomposite hydrogel system for highly sensitive wearable strain sensor applications","authors":"Yeonhee Oh ,&nbsp;Jongseon Choi ,&nbsp;Joongpyo Shim ,&nbsp;So Yeon Kim","doi":"10.1016/j.jiec.2025.04.035","DOIUrl":"10.1016/j.jiec.2025.04.035","url":null,"abstract":"<div><div><span>We designed a conductive nanocomposite hydrogel system for flexible strain sensor materials with excellent strain sensitivity and electrical stability, high flexibility and stretchability, and rapid self-healing properties. Silver nanowires (AgNWs) with a high aspect ratio of 74.9 that can impart excellent electrical properties to the hydrogel and partially reduced graphene oxide (PRGO) with excellent electrical conductivity and water solubility were prepared. AgNW/PRGO-based (AN/PRGO) conductive nanocomposite hydrogels with a double network structure showed high stretchability greater than 1,051% and excellent self-healing properties. Particularly, poly(acrylic acid) (PA)-AN100/PRGO100 hydrogel showed 258.7 times better conductivity than those without AgNW components and 3.1 times better conductivity than those without PRGO. The conductivity of hydrogels could be controlled by varying the contents of AgNW and PRGO. The gauge factor (GF) of hydrogels increased with increasing conductivity, and GF showed higher values even in the low strain region of 0–75% than in the high strain region, indicating high sensitivity to small deformation. The PA-AN100/PRGO100 hydrogels were able to adhere well to the skin due to their excellent self-adhesion despite large and repetitive movements, and they maintained good sensitivity for both subtle muscle movements and large joint bending movements. </span><em>In vitro</em> cytotoxicity results showed a relatively high cell viability greater than 93%, indicating that the hydrogels had no significant cytotoxicity. Therefore, AgNW/PRGO-based nanocomposite hydrogels could be a promising material for wearable strain sensor applications.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 653-666"},"PeriodicalIF":5.9,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"C3N5-Cu-doped Co3O4 @NPC nano-cubes heterojunction architecture for sono-photocatalytic degradation of the antibiotic sulfamethoxazole, electrocatalysis water splitting for HER, and cytotoxic performance","authors":"Mojtaba Rostami ,&nbsp;Alireza Badiei ,&nbsp;Ghodsi Mohammadi Ziarani ,&nbsp;Mahdi Fasihi-Ramandi ,&nbsp;Milad Jourshabani ,&nbsp;Byeong–Kyu Lee ,&nbsp;Mehdi Rahimi-Nasrabadi ,&nbsp;Farhad Ahmadi","doi":"10.1016/j.jiec.2025.04.031","DOIUrl":"10.1016/j.jiec.2025.04.031","url":null,"abstract":"<div><div>The Co₃O₄ nanoparticles (NPs) embedded in nitrogen (N)-doped porous carbon (Co₃O₄ NPs@NPC) were dopped to copper-zeolitic imidazole frameworks (ZIF-67) and used as sonophotocatalyst and electrocatalyst. Herein, a facile in situ growth ultrasonic (US) strategy is reported for the synthesis of tightly connected C₃N₅-Cu-doped Co₃O₄ NPs @NPC nano-cubes heterojunction nanoarchitecture (NAs) by coupling C₃N₅ with Cu-doped Co₃O₄ NPs@NPC nanocubes. The linear sweep voltammetry (LSV) results show that the C₃N₅-Cu-doped Co₃O₄ NPs@NPC electrocatalyst has a remarkable electrocatalytic activity towards the hydrogen evolution reaction (HER). The sono-photocatalyst activity on sulfamethoxazole (SMX) degradation is due to synergistic effects of both superoxides (O₂^•−) and hydroxyl radicals (OH^•). The results substantiate 98 % degradation of SMX within 120 min under sonophotodegradation efficiency. The reduction in electron (e^-)-hole (h⁺) recombination is the main efficiency of sonophotodegradation of C₃N₅-Cu-doped Co₃O₄NPs@NPC. This effect was further complemented by the broadening of light absorption by C₃N₅, resulting in reduced degradation time. The enhanced sonophotocatalysis and electrocatalytic performance are due to their high surface area, enhanced conductivity, and faster charge transfer. This work demonstrated that C₃N₅- Cu-doped Co₃O₄NPs@NPC based sonophotocatalyst and electrocatalyst have great potential in SMX degradation and electrochemical water splitting for hydrogen production. It also shows superior biocompatibility due to C₃N₅′s role in reducing cytotoxicity compared to Cu-doped Co₃O₄ NPs@NPC.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 591-604"},"PeriodicalIF":5.9,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced carrier transport in Wurtzite-Sphalerite phase Engineered CdS integrated with CoBOx for High-Performance photoelectrochemical water oxidation","authors":"Thangavel Sakthivel,&nbsp;Ji Woong Chang","doi":"10.1016/j.jiec.2025.04.001","DOIUrl":"10.1016/j.jiec.2025.04.001","url":null,"abstract":"<div><div><span><span>In this work, to dwindle bulk recombination we designed a multi-phase (wurtzite-sphalerite) mCdS (sphere, wire and plate) heterostructure<span><span> through a novel cation exchange approach. Then customize the mCdS surface with amorphous CoBOx as an oxygen evolution cocatalyst (OEC) to improve the hole utilization and reduce the </span>surface recombination<span>. Plates like mCdS@a-CoBOx photoanodes delivered a significant </span></span></span>photocurrent density 1.6 mA cm</span>⁻²<span><span><span><span> at 1.23 V, which is approximately fourfold higher with respect to unmodified mCdS plates. The applied bias photon-current-efficiency of plates mCdS@a-CoBOx also improved two-fold compared to bare mCdS plates. Internal phase junction in mCdS substantially reduces the photoelectron-hole recombination due to the different work functions in wurtzite-sphalerite. Decorated a-CoBOx reduces surface recombination, improves migration, uplifts the electrochemical active </span>surface area<span>, and expedited the hole transfer from CdS to active site a-CoBOx. The structural and chemical characteristics of the photoanode are studied by XRD, </span></span>XPS, FE-SEM, Cs-TEM and water contact angle. In addition to this, the </span>optoelectronic properties were studied using UV-DRS, Mott-schotty and P-EIS technique. This study paves the way for designing single step synthesis phase junction photoanodes and their OEC modifications to secure high efficiency.</span></div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 357-364"},"PeriodicalIF":5.9,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Implementation of integrated Palygorskite with copper–aluminum layered double hydroxides composite in superior nitrate pollutant removal from wastewater","authors":"Gehan M. Nabil ,&nbsp;Mohammed K. Obada ,&nbsp;Mohamed E. Mahmoud","doi":"10.1016/j.jiec.2025.04.032","DOIUrl":"10.1016/j.jiec.2025.04.032","url":null,"abstract":"<div><div>Environmental pollution with nitrate is a major issue of concern these days. Nitrate form highly stable nitrogenous compounds due to the extreme usage of nitrate fertilizers. However, most water treatment methods are ineffective in terms of nitrate removal and generation of secondary wastes as well. Consequently, this investigation is directed to assemble a novel, sustainable and ecofriendly Palygorskite (Fullers earth)-immobilized-Cu²⁺/Al³⁺<span> LDHs (Pal</span>₅₀₀@Cu²⁺-Al³⁺ LDHs) composite. Removal of 10.0 - 20.0 mg L^-1 NO₃^– were thoroughly investigated and significantly concluded that pH 3.0, time 50 min, temperature 25 °C and 10 mg composite are the optimum conditions. The removal of NO₃^– by Pal₅₀₀@Cu²⁺-Al³⁺ LDHs was accomplished by a combination of pseudo-first-order model and Bangham expressions. Additionally thermodynamic parameters confirmed NO₃^– removal via exothermic and spontaneous adsorption process including a dissociative mechanism. The interaction and binding modes of NO₃^– ions to Pal₅₀₀@Cu²⁺-Al³⁺ were proposed via ion-pair interaction and anion-exchange mechanisms. Additionally, 200 and 250 mg of Pal₅₀₀@Cu²⁺-Al³⁺ LDHs exhibited excellent NO₃^– recovery from real agricultural drainage wastewater providing 81.0 and 98.0 %, respectively. Moreover, the explored Pal₅₀₀@Cu²⁺-Al³⁺ LDHs afforded good stability towards adsorption and desorption regeneration processes up to five successive cycles. Consequently, the collected results from this study verify the validity of Pal₅₀₀@Cu²⁺-Al³⁺ LDHs for exceptional removal of NO₃^– from real agricultural drainage wastewater.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 605-617"},"PeriodicalIF":5.9,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Matrix, Filler, and structural design on the dielectric and energy storage properties of cellulose composites","authors":"Mohammed Arif Poothanari ,&nbsp;Hanuma Reddy Tiyyagura ,&nbsp;Yasir Beeran Pottathara","doi":"10.1016/j.jiec.2025.04.025","DOIUrl":"10.1016/j.jiec.2025.04.025","url":null,"abstract":"<div><div>Cellulose is a renewable, biodegradable, cost-effective, and easy-to-process natural biopolymer. Because of its dielectric, piezoelectric, and mechanical performance, cellulose and its composites are often used as a matrix, filler, substrate, gel electrolyte, and dielectric layer for flexible energy storage devices. They offer easy fabrication strategies and excellent mechanical properties. In this mini-review, we summarized the principles of dielectric and energy storage features of cellulose composites and factors affecting their dielectric properties, mainly exploring the incorporation of various filler materials in the cellulose matrices and cellulose materials acting as different types of fillers. Moreover, the fabrication strategies, structural design, and matrix-filler interactions of cellulose composites enhance their dielectric properties as systematically reviewed. This review summarizes the current state-of-the-art progress of cellulose dielectric composites, challenges, and future outlook for green dielectric and energy storage devices. The review suggests that optimizing the filler type, cellulose fiber content, fabrication techniques, and structural design can significantly enhance the dielectric properties and energy storage capacity of cellulose composites.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 112-130"},"PeriodicalIF":5.9,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}