Article
Biotechnology & Applied Microbiology
Linhan Zhong, Ye Chen, Qing Wen, Yang Yang
Summary: This study aims to develop a high-performance anode material for microbial fuel cells (MFCs). A hydrogel composite material called PPNM, consisting of PEDOT:PSS and nitrogen-modified MXene, was drop-cast onto carbon felt (CF) as the MFCs anode. This PPNM hydrogel exhibited a significantly higher peak power density compared to the CF anode. The introduction of N-MXene improved the electrochemical performance of the hydrogel, particularly impacting the mediated electron transfer process. Microbial community analysis showed the presence of more electrochemically active species on the PPNM anode.
BIOPROCESS AND BIOSYSTEMS ENGINEERING
(2023)
Article
Engineering, Environmental
Yuanfeng Liu, Yaxin Sun, Huiyu Li, Tingli Ren, Congju Lix
Summary: Microbial fuel cells (MFCs) have great potential for recovering electrical energy from waste and biomass, but their practical application is hindered by inefficient power production and high costs. In this study, a bacteria/electrospun oriented carbon nanofibers integrating with carbon nanotubes (BEO-CNFs/CNTs) anode was developed to enhance MFC performance. The BEO-CNFs/CNTs anode greatly improved bacterial loading content and extracellular electron transfer (EET) efficiency, leading to a significantly higher power density than other anodes. This research provides a new perspective for preparing efficient anodes using electrospinning technology.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Jiawei Yang, Shaoan Cheng, Shenglong Zhang, Weiqiang Han, Beichen Jin
Summary: The utilization of a solution-phase flocculation method to prepare MXene nanosheets for anode modification in microbial fuel cells resulted in improved anode performance, with higher current density compared to traditional modification techniques. This method provides a simple and cost-effective approach for enhancing the efficiency of MFC anodes.
Article
Engineering, Environmental
Bahaa A. Hemdan, Dipak A. Jadhav, Arup Dutta, Pranab Goswami
Summary: Poor anodic performance is a major obstacle for scalable applications of air-cathode microbial fuel cells (MFCs), but it can be significantly improved with graphite anodic surface modifications. Different modifications, such as reduced graphene oxide (rGO), polyaniline (PANI), and carbon nanotubes (CNTs), mixed with plant powder, showed improved electron transfer rate and anodic biocapacitance in MFC. PANI modification showed the highest power generation and COD removal, making it a promising and sustainable anode candidate for MFCs.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Biophysics
Yujia Xiang, Tianbao Liu, Boyu Jia, Lijuan Zhang, Xintai Su
Summary: This study synthesized biomimetic nanozymes with Fe-N-S-C active sites as anode materials for microbial fuel cells (MFCs) to improve the extracellular electron transfer (EET) process. The MFCs equipped with Fe-N-S-C nanozymes showed a faster start-up and higher power density compared to traditional carbon cloth, due to the enhanced bacterial adhesion, electroactive bacteria enrichment, and facilitated EET process.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Chemistry, Physical
Yuanfeng Liu, Yaxin Sun, Min Zhang, Shiquan Guo, Zijing Su, Tingli Ren, Congju Li
Summary: This study successfully fabricated an efficient anode electrocatalyst by encapsulating iron disulfide microcrystals with carbon nanotubes, which enhanced the interaction with electroactive bacteria and promoted electron transfer at the anode interface. The MFCs with this anode showed outstanding power density and biocompatibility, making it a promising material for high-performance and cost-effective MFCs.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Agricultural Engineering
Yihu Xu, Kaili Zhu, Xiao Yang, Yunpeng Zhu, Keyang Jiang, Ling Liu, Hainong Song, Yubao Chen, Shuangfei Wang, Zhiwei Wang
Summary: The properties of the anode materials significantly affect the performance of microbial fuel cells (MFCs). In this study, spherical porous carbon nanocomposites with heteroatom doping were prepared and applied as anode materials. The MFCs with the composite anode exhibited superior performance in terms of COD removal rate, output voltage, and power density, surpassing the control electrodes. The composite material promoted direct electron transfer and had excellent electrocatalytic activity and conductivity, making it a promising candidate for MFC applications.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Chemistry, Physical
Min Zhang, Yuanfeng Liu, Congju Li
Summary: Improving bacterial loading contents and extracellular electron transfer efficiency is a promising strategy to enhance the performance of microbial fuel cells (MFCs). In this study, an aligned carbon nanofiber-bacteria (ACNF-bacteria) hybrid was prepared and used as an efficient anode. The ACNF matrix exhibited a porous structure, large specific surface area, and improved electrocatalytic performance. MFCs with the ACNF-bacteria anode achieved a higher power density, coulombic efficiency, and chemical oxygen demand (COD) removal rate compared to other anode materials. This novel ACNF-bacteria anode shows great potential for high-performance and cost-effective MFCs on a large scale.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Green & Sustainable Science & Technology
Jie Wang, Bin Li, Shuping Wang, Tianbao Liu, Boyu Jia, Weizhen Liu, Peng Dong
Summary: Microbial fuel cells have the potential to replace fossil energy sources, but their commercial application is limited by poor anode performance. In this study, iron oxide modified carbon cloth was prepared to enhance the electron transfer function of electricity-producing microorganisms in microbial fuel cells. The modified carbon cloth effectively improved the electrochemical performance and biocompatibility of the anode. This research provides a strategy for preparing high-performance microbial fuel cell anode materials, thus supporting their eventual commercialization.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Demin Jiang, Hao Xie, Huina Chen, Kai Cheng, Liang Li, Kun Xie, Yuqiao Wang
Summary: This study presents a self-supporting anode material for microbial fuel cells (MFCs) that improves the efficiency of microbial adhesion, biofilm formation, and electron transfer. The anode, called PANI@NMCF, is prepared by graphitization and in-situ polymerization, and it shows excellent performance in terms of startup time, power density, and waste degradation efficiency.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Environmental
Ting Zhao, Zhenghui Qiu, Yu Zhang, Fangming Hu, Jiyong Zheng, Cunguo Lin
Summary: The study demonstrated that a 3D hydroxyapatite/graphene aerogel anode could enhance the bioaffinity and conductivity of anode materials, leading to improved power output in microbial fuel cells. The HA/GA anode showed higher power density and better electricity generation performance compared to GA anodes, highlighting the potential of HA for high-performance bioelectricity harvesting.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Yanping Wang, Xusen Cheng, Ke Liu, Xiaofan Dai, Jinteng Qi, Zhuo Ma, Yunfeng Qiu, Shaoqin Liu
Summary: This study prepared a hierarchical nanomaterial modified electrode for improving the anode performance of microbial fuel cells (MFCs). The results showed that compared with the conventional electrode, the modified electrode had better wettability, capacitance, diffusion coefficient, and smaller charge transfer resistance. By promoting the enrichment growth of exoelectrogens and effectively driving the extracellular electron transfer process, the electrode enabled MFCs to achieve higher power density and COD removal amount.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Dongliang Wang, Jingyi Pan, Min Xu, Bingchuan Liu, Jingping Hu, Shaogang Hu, Huijie Hou, Khaled Elmaadawy, Jiakuan Yang, Keke Xiao, Sha Liang
Summary: Modifying exoelectrogens with PPy-PDA sequentially improves conductivity and adhesion, leading to enhanced performance of microbial fuel cells in terms of electron transfer efficiency and power density. This in situ modification strategy offers a promising approach for MFC performance enhancement.
JOURNAL OF POWER SOURCES
(2021)
Article
Engineering, Environmental
Bo Song, Qi Wang, Jafar Ali, Zhibin Wang, Lei Wang, Jiahe Wang, Jiaxin Li, Evgeni M. Glebov, Xuliang Zhuang
Summary: The study prepared a nano-Fe3C@C material as a binder-free anode for microbial fuel cells (MFCs). The encapsulated carbon layers effectively inhibited the dissolution and over-aggregation of nanoparticles and enhanced the interfacial contact with the biochar matrix. The nano-Fe3C@C material exhibited exceptional power density and fast start-up time in acetate-fed MFCs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Gengchen Yu, Qi Zhang, Jiayi Jing, Xu Wang, Yifan Li, Xue Bai, Tao Li
Summary: By using a simple solvothermal method followed by calcination treatment, Cu+ doping in porous TiNb2O7 microspheres is successfully achieved. The introduction of Cu+ improves the electronic conductivity and lithium-ion diffusion in TiNb2O7 due to the reduced band gap and increased interplanar spacing. The Cu0.06Ti0.94Nb2O7 sample exhibits high reversible capacity, superior rate capability, and long-term cycling stability at both ambient and low temperatures, demonstrating its great potential in energy-storage applications.
Article
Materials Science, Paper & Wood
Ping Wang, Luyao Huang, Lilong He, Wenhua Gao, Jinsong Zeng, Bin Wang, Jun Xu, Zhiwei Wang
Summary: In this study, Lignocellulosic nanofibrils (LCNFs) were successfully concentrated from a 1.0 wt% suspension to solid concentrations of 5.9 wt%, 16.3 wt%, and 25.9 wt% using a centrifuge. The concentrated LCNF suspensions exhibited different behaviors but retained good properties.
Article
Engineering, Environmental
Shan-Shan Zhao, Peng Gan, Li-Hai Lu, Yong-Li Chen, Ye-Feng Zhou, Shuang-Fei Wang, Zhi-Wei Wang, Jian Zhang
Summary: This study investigates the impact of bubble entrapment and calcium precipitation on the characteristics of granular sludge in anaerobic systems, proposing a model to infer granule floatability based on the force balance between bubble-induced buoyancy and calcium precipitation-induced gravity. The results demonstrate diversified granule features in the vertical direction and confirm the reliability of the probabilistic prediction model of theoretical granule interception. These findings contribute to a better understanding of the formation of stratified sludge bed structure in anaerobic granular systems.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Textiles
Xiaopeng Yue, Siqian Zhang, Jiachen He, Zhiwei Wang
Summary: The paper presents a study on the synthesis of flame-retardant compound aerogels by cross-linking cellulose nanofibrils with melamine formaldehyde and surface decorating with methyltrimethoxysilane. The compound aerogels showed improved mechanical performance and excellent hydrophobicity and flame retardant properties. The analysis results revealed the occurrence of condensed phase and gas phase flame retardant mechanisms during combustion, and the synergistic effect between melamine formaldehyde and methyltrimethoxysilane. Moreover, the compound aerogels had very low thermal conductivity, making them suitable for heat preservation materials.
JOURNAL OF NATURAL FIBERS
(2023)
Article
Materials Science, Paper & Wood
Hefang Liu, Ping Wang, Wenhua Gao, Jinsong Zeng, Bin Wang, Jun Xu, Zhiwei Wang
Summary: This study demonstrates the redispersement of concentrated CNFs using PVP and the fabrication of CNF/PANI nanomaterials with high conductivity and specific capacitance. Mechanical grinding is an effective method for redispersement, and PVP facilitates the uniform coating of PANI during the polymerization process.
Article
Agricultural Engineering
Yihu Xu, Kaili Zhu, Xiao Yang, Yunpeng Zhu, Keyang Jiang, Ling Liu, Hainong Song, Yubao Chen, Shuangfei Wang, Zhiwei Wang
Summary: The properties of the anode materials significantly affect the performance of microbial fuel cells (MFCs). In this study, spherical porous carbon nanocomposites with heteroatom doping were prepared and applied as anode materials. The MFCs with the composite anode exhibited superior performance in terms of COD removal rate, output voltage, and power density, surpassing the control electrodes. The composite material promoted direct electron transfer and had excellent electrocatalytic activity and conductivity, making it a promising candidate for MFC applications.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Engineering, Environmental
Xiaopeng Yue, Wenhuan Deng, Zhiguo Zhou, Yang Xu, Jiachen He, Zhiwei Wang
Summary: The study fabricated a flame-retarded and reinforced cellulose aerogel using a double cross-linking strategy. The double cross-linked aerogel exhibited improved mechanical performance, excellent flame-resistant properties, and low thermal conductivity, making it suitable for various applications.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Materials Science, Multidisciplinary
Xun Ke, Kaipeng Wang, Lihong Zhao, Zhiwei Wang, Min Wu
Summary: In this work, a unique and facile approach to the manufacture of fluorine-free superamphiphobic paper was reported. By self-assembly and thermal-curing of Fe3O4 nanoparticles and polydimethylsiloxane on kraft paper in a magnetic field, a mushroom-like microstructure was fabricated. The resulting paper showed excellent oil repellency and superhydrophilicity, with oil-contact angle and water-contact angle reaching up to 156 degrees and 160.4 degrees, respectively. It also exhibited great oil resistance and permeability.
Article
Chemistry, Physical
Hua Lian, Shuai Liu, Ze-Xiang Liu, Xi Liu, Hai-Nong Song, Cheng-Rong Qin, Zhi-Wei Wang, Shuang-Fei Wang, Jian Zhang
Summary: This study aimed to alleviate calcification of anaerobic granular sludge by neutralizing granular surface charge with H+ and removing extracellular polymeric substances (EPS) bonded calcium by phosphate assisted chelation. The proposed strategy was validated by calcium interception of UASB reactors operated under a high calcium level, resulting in calcium interception below 100 mgCa(2+).L-1. The unique three-layered structure and the presence of amorphous calcium carbonate (ACC) in granular sludge were observed.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Engineering, Environmental
Xiaopeng Yue, Siqian Zhang, Yang Xu, Zhiwei Wang, Ling Meng
Summary: In order to demonstrate the influence of core-shell structure of microencapsulated ammonium polyphosphate (MCAPPs) on flame resistance and smoke inhibition efficiency of polymer composites, four types of MCAPPs with unilaminar or bistratal shells were fabricated and used to make flame retarded Poly (butyleneadipate-co-terephthalate) (PBAT) composites. The MCAPP with a cross-linked beta-cyclodextrin outer layer (MFAPP-CD1) exhibited the highest flame resistance efficiency. The PBAT composite with 75% PBAT and 25% MFAPP-CD1 showed the highest char residue and densest char layer, as well as the lowest pHRR and THR, decreasing by 77.4% and 76.9% compared to PBAT. Meanwhile, it also demonstrated excellent smoke inhibition effect with the lowest SPR and TSP, due to the weakened catalytic effect of Ammonium polyphosphate (APP) on carbonization agent.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Materials Science, Paper & Wood
Lihong Zhao, Xun Ke, Zhiwei Wang, Min Wu, Junrong Li, Liying Qian, Junli Ren
Summary: This study introduced two new flocculation methods to solve the conflict between PCC filling and AKD sizing for paper: separate flocculation of AKD and PCC, and blending of pre-flocs from AKD and PCC. The results showed that increasing the dosage of cationic starch (CS) flocculant led to improved sizing degree and filler retention rate, as well as enhanced mechanical properties of papersheets. These findings demonstrate the importance of flocculation methods in optimizing paper production processes.
NORDIC PULP & PAPER RESEARCH JOURNAL
(2023)
Article
Polymer Science
Rui Lou, Qihang Cao, Taoyuan Niu, Yiyi Zhang, Yanan Zhang, Zhiwei Wang, Xiao Zhang
Summary: A cost-effective and sustainable method was developed to produce lignin-based cryogels with a mechanically robust 3D interconnected structure. A ChCl-LA-based DES was used as a cosolvent to promote the synthesis of lignin-resorcinol-formaldehyde (LRF) gels. The addition of MOF during the sol-gel process significantly accelerated the gelation of lignin. The resulting LRF carbon cryogels exhibited excellent performance in energy storage devices.
Article
Polymer Science
Jian Sun, Ziqi Jin, Jiyang Wang, Hong Wang, Qian Zhang, Huajing Gao, Zhaohui Jin, Jianlin Zhang, Zhiwei Wang
Summary: This study synthesized a novel PAA/AA/[Vim]Br-2 hydrogel for the removal of Ni-II, Cu-II, Zn-II, and Cr-III from water, demonstrating promising and innovative adsorption efficiency at both high and low concentrations. The unique dual mechanism approach distinguishes this study from previous reports on heavy metal ion removal using hydrogels.
Article
Polymer Science
Zhiwei Wang, Qinghua Song, Huarui Wu, Baolong Feng, Yeyuan Li, Ling Bu
Summary: A synchronized 3D printing and corona charging method was developed to fabricate and activate polylactic acid electrets in one step. By optimizing parameters, the proposed method showed the capability of fast prototyping and effective polarization of polylactic acid electrets.
Review
Engineering, Environmental
Zhiwei Wang, Keyang Jiang, Yunpeng Zhu, Ling Liu, Xuelian Zou, Xiao Yang, Yihu Xu, Jian Zhang, Yubao Chen, Wenhua Gao, Shuangfei Wang
Summary: During the anaerobic treatment of high-calcium organic wastewater, the formation of calcium carbonate or calcium phosphate precipitates on the biofilm surface affects the mass transfer and microbial breeding space of anaerobic granular sludge (AnGS), resulting in biomass reduction and decreased AnGS activity. This study analyzed the mechanisms of AnGS calcification and the migration of calcium precipitation into the interior of AnGS. Traditional methods for controlling calcification and removing calcified AnGS are costly and ineffective. A new approach for resolving AnGS calcification is proposed by optimizing flora and improving sludge activity.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Polymer Science
Ni Dong, Zuzeng Qin, Wang Li, Nian Xiang, Xuan Luo, Hongbing Ji, Zhiwei Wang, Xinling Xie, Kalim Deshmukh, Kishor Kumar Sadasivuni, Tomas Kovarik
Summary: Temperature-sensitive carboxylated cellulose nanocrystals/N-isopropyl acrylamide aerogels were developed for controlled release of pesticides. The nanocrystals were prepared through one-step oxidation and successfully constructed into temperature-sensitive aerogels. The results showed good thermal stability and high loading efficiency of the aerogels, with significant temperature sensitivity in drug release. This study provides a new method for the effective utilization of biomass and pesticides.
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)