Lin Fu, Haoqi Wang, Qiong Huang et al.

Bioprocess and Biosystems Engineering • 2019

D. Paul, M.T. Noori, P.P. Rajesh et al.

Sustainable Energy Technologies and Assessments • 2018

Satish S. Rikame, Alka A. Mungray, Arvind K. Mungray

International Journal of Energy Research • 2020

Lu Liu, Xiaochen Sun, Wenxin Li et al.

RSC Advances • 2017

Enhancing the activity of the cathode and reducing the voltage for electrochemical hydrodechlorination of chlorohydrocarbon were always the challenges in the area of electrochemical remediation. In this study, a novel cathode material of Ni-doped graphene generated by Ni nanoparticles dispersed evenly on graphene was prepared to electrochemically dechlorinate PCE in groundwater. The reduction potential of Ni-doped graphene for PCE electrochemical hydrodechlorination was -0.24 V ( vs. Ag/AgCl) determined by cyclic voltammetry. A single MFC with a voltage of 0.389-0.460 V and a current of 0.221-0.257 mA could drive electrochemical hydrodechlorination of PCE effectively with Ni-doped graphene as the cathode catalyst, and the removal rate of PCE was significantly higher than that with single Ni or graphene as the cathode catalyst. Moreover, neutral conditions were more suitable for Ni-doped graphene to electrochemically hydrodechlorinate PCE in groundwater and no byproduct was accumulated.

Mehri Shabani, Habibollah Younesi, Ahmad Rahimpour et al.

Biocatalysis and Agricultural Biotechnology • 2019

S. Karthick, K. Haribabu

Fuel • 2020

Junfeng Chen, Yongyou Hu, Wantang Huang et al.

International Journal of Hydrogen Energy • 2017

Yi-Ta Wang, Yuan-Kuo Wang

Nanomaterials and Nanotechnology • 2016

The bio-electron-Fenton system integrates microbial fuel cell and Fenton process into a single system to destroy the organic and bio-refractory contaminants in wastewater. Its performance is closely dependent on the sufficient electron supplement by the oxidation process in anode chamber and the reduction process in cathode chamber. This article presents a novel cathode of a bio-electron-Fenton system which can simultaneously achieve good electron supplement and the wastewater treatment in cathode chamber. The cathode consists of indium-tin-oxide conductive glass on which layers of graphene-poly(vinyl alcohol) composite are sprayed by electrospinning. The material characterization is verified by Fourier transform infrared spectroscopy, scanning electron microscopy, and transmission electron microscopy. The voltage, current, and power density of the system are verified by cyclic voltammetry. The wastewater treatment is verified by dye decolorization. With the addition ratio of 4 wt% graphene, the system achieves the optimal power density of 74.1 mW/m 2 , open-circuit voltage of 0.42 V, and the decolorization of reactive black 5 of 60.25%. By constant-resistance discharge testing within three-cycle, the system can stably supply a maximum voltage of 0.41 V or above. Hence, the proposed electrospun graphene-poly(vinyl alcohol) composite cathode electrode can not only improve the power-supply efficiency but also enhance the efficiency of wastewater treatment.

Unknown Author

International Journal of Recent Trends in Engineering and Research • 2017

Sara Khalid, Farah Alvi, Masoom Fatima et al.

Materials Letters • 2018

Rajeev K. Gautam, Himaghna Bhattacharjee, S. Venkata Mohan et al.

RSC Advances • 2015

Efficient ORR electrocatalyst and modular design of MFC.

Unknown Author

Fuel Cells Bulletin • 2016

Jeff Urban

Fuel Cells Bulletin • 2016

Hongyan Dai, Huimin Yang, Xian Liu et al.

Fuel • 2016

Md. T. Noori, C.K. Mukherjee, M.M. Ghangrekar

Electrochimica Acta • 2017

Xuehua Li, Jiansheng Qian, Xingge Guo et al.

3 Biotech • 2018

S. Sadegh Hassani, A. Ziaedini, L. Samiee et al.

Fuel Cells • 2019

Abstract In this work, heteroatom‐doped porous graphene was synthesized by pyrolysis method using microalgae Synechococcus elangatus as a biomass resource. The prepared samples were characterized by X‐ray diffraction (XRD), N 2 sorption‐desorption, field emission scanning electron microscopy (FESEM) and X‐ray photoelectron spectroscopy (XPS). The electrochemical behavior of the synthesized samples was investigated for oxygen reduction reaction (ORR) and evaluated using microbial fuel cell (MFC). The results revealed that the catalytic activity of the prepared sample including N, S and P atoms on porous graphene (PG) was close to the Pt/C 20 wt.%. According to the linear sweep voltammetry (LSV) measurements, the onset potential of optimal sample (0.97 V versus RHE) was close to the Pt/C 20 wt.% (0.99 V versus RHE). Furthermore, the stability test demonstrated much better tolerance to the methanol crossover effects for the optimal sample in comparison to the Pt/C 20 wt.%. Moreover, the microbial fuel cell (MFC) test showed that the cell potential of the optimal sample is close to Pt/C 2 wt.%, and represented a high peak power density of 31.5 mW m −2 , which is comparable to the Pt/C 20wt.% (38.6 mW m −2 ) cathodes, because of synergistic effect of N, S and P co‐doped carbon structure, which leads to improvement in catalytic activity.

Shaowei Zhou, Mei Lin, Zechao Zhuang et al.

Chemosphere • 2019

Geetanjali, Radha Rani, Deepamala Sharma et al.

Bioresource Technology • 2019

P. P. Rajesh, Md. T. Noori, M. M. Ghangrekar

Journal of Clean Energy Technologies • 2018

Na Yang, Yueping Ren, Xiufen Li et al.

Nanomaterials • 2016

The inferior hydrophilicity of graphene is an adverse factor to the performance of the graphene modified anodes (G anodes) in microbial fuel cells (MFCs). In this paper, different amounts of hydrophilic graphene oxide (GO) were doped into the modification layers to elevate the hydrophilicity of the G anodes so as to further improve their performance. Increasing the GO doped ratio from 0.15 mg·mg−1 to 0.2 mg·mg−1 and 0.25 mg·mg−1, the static water contact angle (θc) of the G-GO anodes decreased from 74.2 ± 0.52° to 64.6 ± 2.75° and 41.7 ± 3.69°, respectively. The G-GO0.2 anode with GO doped ratio of 0.2 mg·mg−1 exhibited the optimal performance and the maximum power density (Pmax) of the corresponding MFC was 1100.18 mW·m−2, 1.51 times higher than that of the MFC with the G anode.

Weiwei Su, Weiwei Yan, Zhongdi Su et al.

Theoretical and Applied Mechanics Letters • 2011

In Ho Park, Yoon Hye Heo, Pil Kim et al.

RSC Advances • 2012

S. M. Zain, N. L. Ching, S. Jusoh et al.

Jurnal Teknologi • 2015

The aim of this study is to identify the relationship between the rate of electricity generation and the rate of carbon and nitrogen removal from wastewater using different MFC processes. Determining whether the generation of electricity using MFC process could be related to the rate of pollutant removal from wastewater is noteworthy. Three types of MFC process configurations include the batch mode (SS), a continuous flow of influent with ferricyanide (PF) as the oxidizing agent and a continuous flow of influent with oxygen (PU) as the oxidizing agent. The highest quantity of electricity generation was achieved using the continuous flow mode with ferricyanide (0.833 V), followed by the continuous flow mode with oxygen (0.589 V) and the batch mode (0.352 V). The highest efficiency of carbon removal is also achieved by the continuous flow mode with ferricyanide (87%), followed by the continuous flow mode with oxygen (51%) and the batch mode (46%). Moreover, the continuous flow mode with ferricyanide produced the highest efficiency for nitrogen removal (63%), followed by the continuous flow mode with oxygen (54%) and the batch mode (27%).

S. Sreenivasa Prasath, A. Arockiarajan

Composites Part B: Engineering • 2015

Neila Rjaibi, Latifa Ben Arfa Rabai

International Journal of Secure Software Engineering • 2015

In security risk management practices if we cannot measure, we can neither control nor improve. A challenging issue in the context of cyber security is to deal with the orthogonal classification of security requirements. A literature review has shown that there are different models of security requirements. Everyone examines some requirements and neglects others. In this paper, the authors intend to answer the question: what taxonomy of security requirements should we use in a security quantification process? It is thus imperative to build a standard, unified and hierarchical taxonomy which incorporates 13 security requirements and then refined in layer into 31 sub-factors referring to the variety of the proposed models based on previous works. The Mean Failure Cost model (MFC) is a recent, strong and structural risk management model. It is a cascade of linear models to quantify security threats in term of loss that results from system's vulnerabilities. It computes for each system's stakeholders his loss of operation ($/H) while taking account of its respective users, security requirements, system's components and the complete list of security threats. The proposed taxonomy is used to optimize quantification using the MFC metric by reducing the redundancy in estimating the security requirements values, and increasing accuracy in estimation. The authors applied the expansion of the MFC model to the context of e-learning platforms.

Anandhanarayanan Kamalakannan, Govindaraj Rajamanickam

International Journal of Advanced Computer Science and Applications • 2012

Yan Ni Xiang Li, Xiao Jun Yang

Applied Mechanics and Materials • 2014

This paper mainly introduces how to design an upper computer interface for two-dimensional turntable under the environment of VS2010 using MFC, in order to provide a comfortable and easy operating environment for user. These technology are amply analyzed such as the serial communication, the curve drawing of motor speed, the display of hand wheel schematic. The PC software has the function of management and control of the two-dimensional turntable which is verified by experiments.

P. Rezayati Charani, M. Dehghani-Firouzabadi, E. Afra et al.

Cellulose • 2013

Gui-Hua Xu, Yun-Kun Wang, Guo-Ping Sheng et al.

Scientific Reports • 2014

Hongsuck Kim, Byunggoon Kim, Jaecheul Yu

Bioresource Technology • 2015

Single-chamber microbial fuel cells (MFCs) using domestic wastewater (DWW) and milk processing wastewater (MWW) were operated at different organic loading rates (OLRs). The maximum power density (PDmax) and OLR (readily biodegradable COD [RBCOD] and soluble COD [SCOD]) followed the Lineweaver-Burk equation in all influents. The coefficients of determination were 0.9209 and 0.9975 for SCOD and RBCOD, respectively. OLR based on RBCOD showed better power generation function than that based on SCOD. PDmax (2.9-12.2 W/m(3)) in DWW was lower than that (6.9-24.9 W/m(3)) in MWW but the net energy recovery (kWh/kg-SCOD(removed)) in DWW (0.542-1.108) was larger than that in MWW (0.322-0.602). This was attributed to the higher ratio of RBCOD/SCOD (0.44) and the lower values of RBCOD (40 mg/L) in DWW, compared to RBOCD/SCOD (0.11) and RBCOD (110 mg/L) in MWW. Therefore, RBCOD is an important indicator for estimating power generation.

Xuexia Zhang, Yan Yu, Wanju Li et al.

BioResources • 2015

The suitability of saturated salt solutions as a dispersive agent for preparing microfibrillated cellulose (MFC) from bamboo processing residue through ultrasonication was evaluated. The effect of pure water and KCl solution on the rheological behavior and morphologies of prepared MFC were compared. The results show that the viscosity of MFC suspension dispersed in KCl solution decreases by several orders of magnitude compared to the water counterpart. SEM images demonstrate that MFCs with comparable quality can be prepared using either pure water or KCl solution as a dispersive agent. A high concentration of bamboo processing residue (~2 wt.%) dispersed in salt solutions was found to possess comparable viscosity with a low concentration of MFC suspension (~0.5 wt.%) dispersed in water. This indicates that the application of salt solutions as dispersive agents in ultrasonication has great potential to improve the productivity of MFC prepared from plant materials.

Eric Fleurent-Wilson, Armaghan Salehian

Canadian Aeronautics and Space Journal • 2014

S Anupama, N. V. Pradeep, U. S. Hampannavar

Sugar Tech • 2013

S. Srikanth, S. Venkata Mohan

Bioresource Technology • 2012

S. Sreenivasa Prasath, A. Arockiarajan

Composite Structures • 2015

Gary Chinga-Carrasco, Natalia Averianova, Marat Gibadullin et al.

Micron • 2012

Sivasankaran Ayyaru, Sangeetha Dharmalingam

Bioresource Technology • 2011

Kang Gao, Jing Song Fan, Ming Shao et al.

Applied Mechanics and Materials • 2012

In order to achieve a convenient Augmented Reality interactive system, a rendering engine called osgART was integrated into MFC. The system manipulates the interactive transformation of virtual objects by utilizing the message sending from controllers. The operating mechanism of osgART in MFC was explored in this paper. Besides, the controller message had been successfully sent to the update callback, and the SRT order of matrix multiplication was used in update callback class. Finally, a user-friendly interactive AR application has been successfully developed, which shows that an effectively real-time interaction in MFC environment has been achieved.

Xin Pang, Yun Zhi Chen, Zheng Jian Zhang

Applied Mechanics and Materials • 2014

As a kind of environmentally friendly material, microfibrillated cellulose (MFC) has the following advantages: renewable raw materials, easy recycling, biodegradable, safety and so on. It can be combined with antibacterial agents to prepare the antibacterial packing materials for food. In this paper, the nano-ZnO was modified by titanate coupling agent TM-38s at first,determines the best dosage of TM-38 is 3% in the modification process,the dosage of the isopropyl alcohol for 40ml,improving its dispersibility. And then added in the MFC suspension to formulate the antibacterial coating for antibacterial coated paper preparation. The changes of antibacterial properties of the paper before and after coating were investigated in this study. The results showed that the paper had a significant antibacterial activity to e. coli and staphylococcus aureus (the antibacterial circle was bigger than 15 mm).When the nano-ZnO dosage was 2.5wt%, the antibacterial properties of the coated paper could reach the best situation. Application of the antibacterial caoated paper to the food packaging could restrain and kill the microorganisms on the food surface effectively, prolong the shelf life of food, and improve the food safety.