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Progress in electrocatalytic nitrate reduction for green energy:Catalyst engineering,mechanisms,and techno-economic feasibility

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Journal of Energy Chemistry 2024年第8期95卷 380-406,I0009页

作者： Hafiz muhammad Adeel Sharif Hafiz muhammad farooq khan Sadeeq Ullah Yuwei Wang muhammad Ahmad Bo Yang Changping Li muhammad Bilal Asif Research Center for Eco-Environmental Engineering Dongguan University of TechnologyDongguan 523808GuangdongChina College of Chemistry and Engineering Shenzhen UniversityShenzhen 518060GuangdongChina FMH College of Medicine and Dentistry LahorePakistan School of Environment and Civil Engineering Research Center for Eco-Environment EngineeringDongguan University of TechnologyDongguan 523106GuangdongChina Advanced Membranes and Porous Materials Center(AMPMC) Physical Sciences and Engineering(PSE)King Abdullah University of Science and Technology(KAUST)Thuwal 23955Saudi Arabia

Ammonia(NH_(3))is an irreplaceable chemical that has been widely demanded to keep the sustainable development of modern ***,its industrial production consumes a huge amount of energy and releases extraordinary greenhouse gases(GHGs),leading to various environmental *** the green production of ammonia is a great challenge,which has been extensively pursued in the last *** this review,the most promising strategy,electrochemical nitrate reduction reaction(e-NO_(3)RR),is comprehensively investigated to give a complete understanding of its development and mechanism and provide guidance for future ***,owing to the complex reactions and limited selectivity,a comprehensive understanding of the mechanisms is crucial to further development and ***,NO_(3)^(-)RR is a promising strategy for simultaneous water treatment and NH_(3)production.A detailed overview of the recent progress in NO_(3)^(-)RR for NH_(3)production with nontransition and transition metal based electrocatalysts is *** addition,critical advanced techniques,future challenges,and prospects are discussed to guide future research on transition metal-based catalysts for commercial NH_(3)synthesis by NO_(3)^(-)reduction.

关键词： Nitrate reduction Electrolysis Pollution to solution Transition metal catalysts Ammonia synthesis Green energy

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Degradation of polyacrylamide (PAM) and methane production by mesophilic and thermophilic anaerobic digestion: Effect of temperature and concentration

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Frontiers of Environmental Science & Engineering 2020年第6期14卷 75-85页

作者： Mona Akbar muhammad farooq Saleem khan Ling Qian Hui Wang State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China Sino-Japan Friendship Center for Environmental Protection Beijing 100029China

Polyacrylamide(PAM)is generally employed in wastewater treatment processes such as sludge dewatering and therefore exists in the ***,it degrades slowly and can deteriorate methane yield during anaerobic digestion(AD).The impact or fate of PAM in AD under thermophilic conditions is still *** study mainly focuses on PAM degradation and enhanced methane production from PAM-added sludge during 15 days of thermophilic(55°C)AD compared to mesophilic(35°C)*** and PAM dose from 10 to 50 g/kg TSS were *** results showed that PAM degraded by 76%to 78%with acrylamide(AM)content of 0.2 to 3.3 mg/L in thermophilic ***,it degraded only 21%to 30%with AM content of 0.5 to 7.2 mg/L in mesophilic *** methane yield was almost 230 to 238.4 mL/g VSS on the 8th day in thermophilic AD but was 115.2 to 128.6 mL/g VSS in mesophilic *** investigation revealed that thermophilic AD with continuous stirring not only enhanced PAM degradation but also boosted the organics release from the sludge with added PAM and gave higher methane yield than mesophilic AD.

关键词： Polyacrylamide(PAM)degradation Acrylamide(AM) Mesophilic anaerobic digestion Thermophilic anaerobic digestion Methane production

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A progressive route for tailoring electrical transport in MoS2

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Nano Research 2016年第2期9卷 380-391页

作者： muhammad Arslan Shehzad1 Sajjad Hussain muhammad farooq khan Jonghwa Eom Jongwan Jung Yongho Seo Graphene Research Institute Sejong University Seoul 143-747 Republic of Korea Faculty of Nanotechnology & Advanced Materials Engineering and Graphene Research Institute Sejong University Seoul 143-74 7Republic of Korea Department of Physics and Graphene Research Institute Sejong University Seoul 143-747 Republic of Korea

Typically, molybdenum disulfide （MoS2） synthesized by chemical vapor deposition （CVD） is polycrystalline; as a result, the scattering of charge carriers at grain boundaries can lead to performances lower than those observed in exfoliated single-crystal MoS2. Until now, the electrical properties of grain boundaries have been indirectly studied without accurate knowledge of their location. Here, we present a technique to measure the electrical behavior of individual grain boundaries in CVD-grown MoS2, imaged with the help of aligned liquid crystals. Unexpectedly, the electrical conductance decreased by three orders of magnitude for the grain boundaries with the lowest on/off ratio. Our study provides a useful technique to fabricate devices on a single-crystal area, using optimized growth conditions and device geometry. The photoresponse, studied within a MoS2 single grain, showed that the device responsivity was comparable with that of the exfoliated MoS2-based photodetectors.

关键词： MoS2 grain boundary liquid crystal electrical properties photoresponse

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Oxygen-incorporated MoS_(2) catalyst for remarkable enhancing piezocatalytic H_(2) evolution and degradation of organic pollutant

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Rare Metals 2023年第9期42卷 3034-3045页

作者： Xue-Er Ning Dian-Zeng Jia Shan-Hao Li muhammad farooq khan Ai-Ze Hao State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of ChemistryXinjiang UniversityUrumqi830017China Department of Electrical Engineering Sejong UniversitySeoul05006Republic of Korea

A highly efficient piezocatalyst of oxygen-incorporated Mo S_(2)(O-Mo S_(2)) was designed and successfully synthesized via facile modulation of hydrothermal process temperature ***,a superior piezocatalytic H_(2) evolution rate of 46.1μmol·g^(-1)·h^(-1)in pure water and921.0μmol·g^(-1)·h^(-1)in methanol solution is obtained on optimal O-MoS_(2)-180 (with a hydrothermal process temperature of 180℃),outperforming pristine Mo S_(2)and most of the reported other ***,piezocatalytic activity of O-MoS_(2) toward the degradation of organic pollutants depends on hydrothermal *** suitable temperature of O-Mo S_(2)-180 presents dramatically excellent piezocatalytic capacity compared with the pristine MoS_(2) for degradation of methylene blue (MB) *** reaction rate constant of O-Mo S_(2)-180 reaches to 54.6×10^(-3)min^(-1),which is nearly 18 and 4-folds in contrast with pristine MoS_(2) and O-Mo S_(2)-140 (with a hydrothermal process temperature of 140℃),***,it also manifests that O-MoS_(2)-180 endows relatively high degradation efficiency (84.6%within30 min) and excellent ***,it is also demonstrated that optimal O-MoS_(2) can dramatically promote charge carriers transport and ***,our theoretical calculation results suggest that the oxygenincorporated can modulate the surface electronic state,enhance active sites as well as optimize the hydrogen adsorption Gibbs free energy of MoS_(2),thus extremely boosting piezocatalytic ***,an innovative piezocatalytic mechanism is proposed to reveal and expound the relationship between piezocatalytic property and oxygen-incorporated role.

关键词： Oxygen-incorporated MoS_(2) Piezocatalytic H_(2)evolution Piezocatalytic degradation Charge carriers separation Piezocatalytic mechanism

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Insight into fluorescence properties of 14 selected toxic single-ring aromatic compounds in water:Experimental and DFT study

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Frontiers of Environmental Science & Engineering 2020年第3期14卷 59-74页

作者： muhammad farooq Saleem khan Jing Wu Cheng Cheng Mona Akbar Bo Liu Chuanyang Liu Jian Shen Yu Xin State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China Research Institute for Environmental Innovation(Suzhou) Tsinghua UniversitySuzhou 215000China School of Physical Science and Technology&Jiangsu Key Laboratory of Thin Films Soochow UniversitySuzhou 215006China

Various single-ring aromatic compounds in water sources are of great concern due to its hazardous impact on the environment and human *** fluorescence excitation-emission matrix(EEMs)spectrophotometry is a useftil method to identify organic pollutants in *** study provides a detailed insight into the fluorescence properties of the 14 selected toxic single-ring aromatic compounds by experimental and theoretical *** theoretical analysis were done with Time-Dependent Density Functional Theory(TD-DFT)and B3LYP/6-31G(d,p)basis set,whereas,Polarizable Continuum Model(PCM)was used to consider water as *** selected compounds displayed their own specific excitation-emission(Ex/Em)wavelengths region,at ExCl>Br>I).In this study the theoretical results are in line with experimental *** understanding of fluorescence and photophysical properties are of great importance in the identification of these compounds in the water.

关键词： Fluorescence Photophysical properties Effect of the substituent Toxic aromatic compounds

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Deep Convolutional Neural Networks for Accurate Classification of Gastrointestinal Tract Syndromes

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Computers, Materials & Continua 2024年第1期78卷 1207-1225页

作者： Zahid farooq khan muhammad Ramzan Mudassar Raza muhammad Attique khan Khalid Iqbal Taerang Kim Jae-Hyuk Cha Department of Computer Science COMSATS University IslamabadWah CampusWah47040Pakistan Department of Computer Science and Mathematics Lebanese American UniversityBeirut13-5053Lebanon Department of Computer Science HITEC UniversityTaxila47080Pakistan Department of Computer Science COMSATS University IslamabadAttock CampusAttock43600Pakistan Department of Computer Science Hanyang UniversitySeoul04763Korea

Accurate detection and classification of artifacts within the gastrointestinal(GI)tract frames remain a significant challenge in medical image *** science combined with artificial intelligence is advancing to automate the diagnosis and treatment of numerous *** to this is the development of robust algorithms for image classification and detection,crucial in designing sophisticated systems for diagnosis and *** study makes a small contribution to endoscopic image *** proposed approach involves multiple operations,including extracting deep features from endoscopy images using pre-trained neural networks such as Darknet-53 and ***,feature optimization utilizes the binary dragonfly algorithm(BDA),with the fusion of the obtained feature *** fused feature set is input into the ensemble subspace k nearest neighbors(ESKNN)*** Kvasir-V2 benchmark dataset,and the COMSATS University Islamabad(CUI)Wah private dataset,featuring three classes of endoscopic stomach images were *** assessments considered various feature selection techniques,including genetic algorithm(GA),particle swarm optimization(PSO),salp swarm algorithm(SSA),sine cosine algorithm(SCA),and grey wolf optimizer(GWO).The proposed model excels,achieving an overall classification accuracy of 98.25% on the Kvasir-V2 benchmark and 99.90% on the CUI Wah private *** approach holds promise for developing an automated computer-aided system for classifying GI tract syndromes through endoscopy images.

关键词： Feature fusion Darknet-53 Xception binary dragonfly algorithm ensemble

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Artificial Intelligence Based Meteorological Parameter Forecasting for Optimizing Response of Nuclear Emergency Decision Support System

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原子能科学技术 2024年

作者： BILAL Ahmed khan HASEEB ur Rehman QAISAR Nadeem muhammad Ahmad Naveed Qureshi JAWARIA Ahad muhammad Naveed Akhtar AMJAD farooq MASROOR Ahmad Pakistan Institute of Engineering and Applied Sciences

This paper presents a novel artificial intelligence (AI) based approach to predict crucial meteorological parameters such as temperature,pressure,and wind speed,typically calculated from computationally intensive weather research and forecasting (WRF) *** meteorological data is indispensable for simulating the release of radioactive effluents,especially in dispersion modeling for nuclear emergency decision support *** of meteorological conditions during nuclear emergencies using the conventional WRF model is very complex and ***,a new artificial neural network (ANN) based technique was proposed as a viable alternative for meteorological prediction.A multi-input multi-output neural network was trained using historical site-specific meteorological data to forecast the meteorological *** evaluation of this technique was conducted to test its performance in forecasting various parameters including atmospheric pressure,temperature,and wind speed components in both East-West and North-South *** performance of developed network was evaluated on an unknown dataset,and acquired results are within the acceptable range for all meteorological *** show that ANNs possess the capability to forecast meteorological parameters,such as temperature and pressure,at multiple spatial locations within a grid with high accuracy,utilizing input data from a single ***,accuracy is slightly compromised when predicting wind speed *** mean square error (RMSE) was utilized to report the accuracy of predicted results,with values of 1.453℃for temperature,77 Pa for predicted pressure,1.058 m/s for the wind speed of U-component and 0.959 m/s for the wind speed of *** conclusion,this approach offers a precise,efficient,and wellinformed method for administrative decision-making during nuclear emergencies.

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Optimizing the utilization of maize silage in forage blends-based rations to improve production performance and reduce methane emissions from fattening calves

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International Journal of Agricultural and Biological Engineering 2024年第3期17卷 75-81页

作者： Khalid farooq Asad Sultan Assar Ali Shah Rifat Ullah khan Rajwali khan Ghazala Yasmeen Nazir Ahmad khan Faculty of Animal Husbandry and Veterinary Sciences The University of AgriculturePeshawar 25130Pakistan Pakistan Scientific and Technological Information Center(PASTIC) Islamabad 44000Pakistan

This research investigated the effect of various mixtures of maize silage and ryegrass fodder on nutrient digestibility,production performance,and methane(CH4)emission of fattening ***-four fattening calves((228±10)kg body weight(BW),(280±5)d of age)were allocated to 8 diets for 84 d,according to a randomized complete block design,and the blocks were balanced for BW,age,and *** diets consisted of 4 levels of maize silages,i.e.,40%(MS40),50%(MS50),60%(MS60),and 70%(MS70)in the maize silage and ryegrass fodder mixture on a dry matter(DM)basis,and each of the mixture was supplemented with either low(LC,1.0%BW)or high(HC,1.5%BW)levels of fattening *** results revealed greater(p<0.05)intakes of DM(8.35 kg/d),organic matter(OM,7.85 kg/d),and metabolizable energy(ME,12.00 Mcal/d)in calves fed with MS70-LC *** highest(p<0.05)digestibility(g/100 g)of DM(65.2),OM(67.3),crude protein(69.1),and neutral detergent fibre(56.3)was recorded for MS40-HC *** maximum(p<0.05)average daily gain(ADG,571 g/d)was recorded for diet *** lowest value(p<0.05)of CH4 emission was recorded in MS70-LC,MS70-HC,and MS60-HC as compared to other *** 70%maize silage in the ryegrass-maize silage based diet improved ADG by 174 g/d with LC *** is concluded that the optimum inclusion level of maize silage and ryegrass in the fattening ration can improve animal production performance and reduces CH4 production and concentrate requirements of fattening calves.

关键词： average daily gain farm-grown forages forage mixture fattening calves maize silage ryegrass fodder

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Vastly Synergistic Fe2CuNiS4-Nanoarchitectures Anchored 2D-Nano-Sandwich Derived from Flower-Like-CuFeS2/N-Graphene and Cube-Like-NiFeS2/N-CNTs for Water Oxidation and Nitrophenol Reduction

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ENERGY & ENVIRONMENTAL MATERIALS 2024年第6期7卷 274-289页

作者： Mayakrishnan, Gopiraman Vanaraj, Ramkumar Xiong, Junpeng farooq, muhammad Ullah, Azeem Zhang, Keqin Kim, Seong Cheol Kim, Ick Soo Shinshu Univ Inst Fiber Engn IFES Interdisciplinary Cluster Cutting Edge Res ICCER Nano Fus Technol Res GrpDiv Mol & Polymers Tokida 3-15-1 Ueda Nagano 3868567 Japan Yeungnam Univ Sch Chem Engn Gyongsan 38541 South Korea Shinshu Univ Grad Sch Med Sci & Technol Tokida 3-15-1 Ueda Nagano 3868567 Japan Soochow Univ Coll Text & Clothing Engn Natl Engn Lab Modern Silk Suzhou 215123 Peoples R China

Surface area, pore properties, synergistic behavior, homogenous dispersion, and interactions between carbon matrix and metal-nanostructures are the key factors for achieving the better performance of carbon-metal based (electro)catalysts. However, the traditional hydro- or solvothermal preparation of (electro)catalysts, particularly, bi- or tri-metallic nanostructures anchored graphene (G) or carbon nanotubes (CNTs), often pose to poor metal-support interaction, low synergism, and patchy dispersion. At first, bimetallic flower-like-CuFeS2/NG and cube-like-NiFeS2/NCNTs nanocomposites were prepared by solvothermal method. The resultant bimetallic nanocomposites were employed to derive the 2D-nano-sandwiched Fe2CuNiS4/NGCNTs-SW (electro)catalyst by a very simple and green urea-mediated "mix-heat" method. The desired physicochemical properties of Fe2CuNiS4/NGCNTs-SW such as multiple active sites, strong metal-support interaction, homogenous dispersion and enhanced surface area were confirmed by various microscopic and spectroscopic techniques. To the best of our knowledge, this is the first urea-mediated "mix-heat" method for preparing 2D-nano-sandwiched carbon-metal-based (electro)catalysts. The Fe2CuNiS4/NGCNTs-SW was found to be highly effective for alkaline-mediated oxygen evolution reaction at low onset potential of 284.24 mV, and the stable current density of 10 mA cm(-2) in 1.0 m KOH for 10 h. Further, the Fe2CuNiS4/NGCNTs-SW demonstrated excellent catalytic activity in the reduction of 4-nitrophenol with good kapp value of 87.71 x 10(-2) s(-1) and excellent reusability over five cycles. Overall, the developed urea-mediated "mix-heat" method is highly efficient for the preparation of metal-nanoarchitectures anchored 2D-nano-sandwiched (electro)catalysts with high synergism, uniform dispersion and excellent metal-support interaction.

关键词： (electro)catalyst metal-sulfide nanoarchitectures mix-heat N-graphene/N-CNTs synergistic effect urea CELLULOSE NANOFIBER COMPOSITES OXYGEN EVOLUTION TRANSFER HYDROGENATION GRAPHENE CATALYST FACILE ELECTROCATALYST NANOTECHNOLOGY NANOPARTICLES EFFICIENT

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A review on marine collagen:sources,extraction methods,colloids properties,and food applications

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胶原与皮革（英文） 2024年第1期6卷 1-27页

作者： Shahzad farooq muhammad Ijaz Ahmad Shijie Zheng Usman Ali Yang Li Cui Shixiu Hui Zhang Jiaxing Institute of Future Food Jiaxing 314050China College of Biosys-tems Engineering and Food Science Zhejiang Key Laboratory for Agro-Food ProcessingZhejiang UniversityHangzhou 310058China Jiaxing Institute of Future Food Jiaxing 314050China College of Biosys-tems Engineering and Food Science Zhejiang Key Laboratory for Agro-Food ProcessingZhejiang UniversityHangzhou 310058China

The growing interest in valorizing industrial by-products has led researchers to focus on exploring different sources and optimizing collagen extraction conditions over the past *** bovine hide,cattle bones,pork,and pig skins remain the most abundant collagen sources,there is a growing trend in the industrial utilization of collagen from non-mammalian *** review explores alternative marine collagen sourcesand summarizes emerging trends in collagen recovery from marine sources,with a particular focus on environmentally friendly ***-tionally,this review covers the colloidal structure-forming properties of marine collagens,including foam,film,gel,and emulsion *** also highlights the potential and important applications of marine collagen in various food *** on the currently reported marine sources,collagens extracted from fish,jellyfish,and sea cucumbers were found to have the highest yield and mostly comprised type-l collagen,while crustaceans and mollusks yielded lower percentages of *** extraction techniques isolate collagen based on acetic acid and pepsin treatment,but they come with drawbacks such as being time-consuming,causing sample destruction,and using ***,marine collagen extracted using conventional methods assisted with ultrasonication resulted in higher yields and strengthened the triple-stranded helical ***,an increasing number of new applications have been found in the food industry for marine collagens,such as biodegradable film-forming materi-als,colloid stabilizers,foaming agents,and micro-encapsulating ***,collagen is a modern foodstuff and is extensively used in the beverage,dairy,and meat industries to increase the stability,consistency,and elasticity of products.

关键词： Marine collagen Jellyfish Sea cucumber Colloid stabilizer Edible film Dairy product

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