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| 1 | Synthesis of novel adsorbent by intercalation of biopolymer in LDH for the removal of arsenic from synthetic and natural water显示文摘This study focuses on the synthesis of nanocomposites named CCA and CZA that were prepared by the incorporation of cellulose(CL)in the Ca/Al and Zn/Al layered double hydroxide(LDH),respectively.These materials were then used for the uptake of As(Ⅲ)and As(V)from aqueous medium.Characterization of both nanocomposites(CCA and CZA)was done using FTIR and Raman analysis to identify the functional groups,N2 adsorption-desorption isotherms to determine the specific surface area and pore geometry and XPS analysis to obtain the surface atomic composition.Some other characters were investigated using simultaneous TGA and DTA and elemental chemical analysis(CHNS/O).The crystallinity of the prepared nanocomposites was displayed by XRD patterns.Furthermore,the sheet-like structure of the LDHs and the irregularity of surface morphology with porous structure were observed by TEM and SEM microphotographs.Optimization of maximum adsorption capacity was adjusted using different parameters including pH,contact time and adsorbent dosage.The pseudo-second-order model was in good fitting with kinetics results.The adsorption isotherm results showed that CZA exhibits better adsorption capacity for As(Ⅲ)than CCA and the Langmuir isotherm model described the data well for both nanocomposites.Thermodynamic studies illustrated the endothermic nature of CCA and exothermic nature on CZA,as well as the fact that the adsorption process is spontaneous.A real water sample collected from well located in Gabes(Tunisia),has also been treated.The obtained experimental results were confirmed that these sorbents are efficient for the treatment of hazardous toxic species such as. | Hanen Bessaies Sidra Iftekhar Bhairavi Doshi Jamel Kheriji Mohamed Chaker Ncibi Varsha Srivastava Mika Sillanpaa Bechir Hamrouni | 2020 | Journal of Environmental Sciences2020，32，5： | 10 |
| 2 | Functionalized CVD monolayer graphene for label-free impedimetric biosensing显示文摘在大区域 graphene 生长的最近的进展在不同区域导致了许多应用。在现在的学习,化学蒸汽扔了(CVD ) 在玻璃底层上支持的单层 graphene 为电气化学的 biosensing 应用作为电极材料被检验。我们由在酸的水的答案在 situ 准备的 carboxyphenyl 重氮基盐的电气化学的减小为 CVD 单层 graphene 的共有原子价 functionalization 报导灵巧的策略。修改 carboxyphenyl 的 graphene 用拉曼光谱学, X 光检查光电子光谱学(XPS ) ,和原子力量被描绘显微镜学(AFM ) ,以及电气化学的阻抗光谱学(EIS ) 。我们也证明 graphene 表面上的 grafted carboxyphenyl 组的数字能被扫描为 electrografting 使用了的周期的 voltammetry (CV ) 的数字控制。我们进一步在 grafted 的激活以后在 graphene 表面上基于 ovalbumin 抗体的固定介绍 immunosensor 的制造和描述经由 EDC/NHS 化学的羧基的组。在使表面不能调动的抗体和 ovalbumin 之间的绑定然后用 Faradaic EIS 被监视在[Fe (CN )< 潜水艇 class= “ a-plus-plus ” > 6 ] 3/4 答案。费用转移抵抗的百分比变化(R < 潜水艇 class= “ a-plus-plus ” > 在绑定以后的 ct ) 为从 1.0 pg 的 ovalbumin 集中展出了线性依赖? | Shimaa Eissa Gaston Contreras Jimenez Farzaneh Mahvash Abdeladim Guermoune Chaker Tlili Thomas Szkopek Mohammed Zourob Mohamed Siaj | 2015 | Nano Research2015，8，5： | 3 |
| 3 | Effect of Interfacial Phenomena on Evaporative Heat Transfer in Micro Heat Pipes 显示文摘 | Valerie Sartre Mohamed Chaker Zaghdoudi | 2000 | International Journal of Thermal Science2000，39，： | 1 |
| 4 | Effect of interfacial phenomena on evaporative heat transfer in micro heat pipes显示文摘 | Valérie Sartre Mohamed Chaker Zaghdoudi Monique Lallemand | 2009 | Int J Therm Sci2009，39，： | 1 |
| 5 | Recent advancements in plasmon-enhanced visible light-driven water splitting显示文摘Recently,the combination of plasmonic noble metallic nanostructures with semiconductors for plasmonenhanced visible light-driven water splitting(WS)has attracted considerable attention.This review first presents three prime enhancement mechanisms for plasmon-enhanced photocatalytic WS,and then some state-of-the-art representative studies are introduced according to different enhancement mechanisms.Furthermore,the design parameters of plasmonic-metal/semiconductor photocatalysts are discussed in detail,focusing on the effect of shape,size and geometric position of metallic nanostructures on the photocatalytic activity of visible light-driven WS.Finally,the challenges and perspectives for plasmon-enhanced solar WS are proposed. | Qingzhe Zhang Deepak Thrithamarassery Gangadharan Yanlong Liu Zhenhe Xu Mohamed Chaker Dongling Ma | 2017 | Journal of Materiomics2017，3，1： | 1 |
| 6 | SAFT-VNDN: A Socially-Aware Forwarding Technique in Vehicular Named Data Detworking显示文摘Vehicular Social Networks(VSNs)is the bridge of social networks and Vehicular Ad-Hoc Networks(VANETs).VSNs are promising as they allow the exchange of various types of contents in large-scale through Vehicle-to-Vehicle(V2V)and Vehicle-to-Infrastructure(V2I)communication protocols.Vehicular Named Data Networking(VNDN)is an auspicious communication paradigm for the challenging VSN environment since it can optimize content dissemination by decoupling contents from their physical locations.However,content dissemination and caching represent crucial challenges in VSNs due to short link lifetime and intermittent connectivity caused by vehicles’high mobility.Our aim with this paper is to improve content delivery and cache hit ratio,as well as decrease the transmission delay between end-users.In this regard,we propose a novel hybrid VNDN-VSN forwarding technique based on social communities,which allows requester vehicles to easily find the most suitable forwarder or producer among the community members in their neighborhood area.Furthermore,we introduce an effective caching mechanism by dividing the content store into two parts,one for community private contents and the second one for public contents.Simulation results show that our proposed forwarding technique can achieve a favorable performance compared with traditional VNDN,in terms of data delivery ratio,average data delivery delay,and cache hit ratio. | Amel Boudelaa Zohra Abdelhafidi Nasreddine Lagraa Chaker Abdelaziz Kerrache Muhammad Bilal Daehan Kwak Mohamed Bachir Yagoubi | 2022 | Computers, Materials & Continua2022，，11： | 0 |
| 7 | Supplemental feeding on rangelands:new dynamics of the livestock in the El Ouara rangelands in southern Tunisia显示文摘Fodder production in arid rangelands has been traditionally considered as the main source of nutrition for livestock.However,the production of these fodder may be influenced by some socio-economic and climatic factors.This study aims to identify the various rangeland use forms and determine the types of livestock feeding system in the El Ouara rangelands of Ben guarden District in southern Tunisia by analysing the importance of supplemental feeding and main determinants of this practice.Data were collected by a survey that targeted a sample of 50 breeders in the El Ouara rangelands.Descriptive statistics and binary logistic regression were used to analyse the data.The results showed that there are two types of association practiced by breeders:“Cherka”association practiced by 10.00% of breeders and cash payment association practiced by 53.00% of breeders.Then,transhumance,sedentary,and semi-urban forms are the main ways in which breeders use the rangelands.There are four livestock feeding systems in the El Ouara rangelands being used to feed livestock:natural rangeland,rangeland-based,mixed,and concentrate-based feeding systems.Supplemental feeding has become fundamental for the livestock feeding system in the El Ouara rangelands.The breeders with the largest camel size still use the natural rangeland feeding system,while the breeders who have the largest herd size practice the mixed feeding system.The logistic regression results reveal that breeder age,cereal area,herd size,migrant remittance,second activity,and agricultural development group membership can significantly impact the supplemental feeding.In summary,this study can help policy-makers plan innovative practices based on climatic change,ensure the sustainability of livestock feeding system,and make effective decisions for local development. | Houda RJILI Mohamed JAOUAD Chaker SELMI | 2023 | Regional Sustainability2023，4，4： | 0 |
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