Article
Chemistry, Multidisciplinary
Xiaojie Cheng, Xiaojian Qin, Zhenglun Su, Xun Gou, Zhaomei Yang, Hongshan Wang
Summary: This study prepared three different MXene-based two-dimensional composite membranes with improved antibacterial and separation properties. The results showed that the modified membranes exhibited significantly higher antibacterial activity against Escherichia coli and Staphylococcus aureus compared to the pure MXene membrane.
Article
Engineering, Chemical
Xiaochen Zhao, Xudong Wang, Yongtao Lv, Wei Zhao, Yonghao Dong, Lei Wang
Summary: In this study, high-performance g-C3N4-SAx membranes with high flux and self-cleaning were prepared by stably anchoring sodium alginate (SA) molecules and graphitic carbon nitride (g-C3N4) nanosheets via electrostatic forces and hydrogen bonding. The SA molecules, as interlayer supports, expanded the interlayer spacing and accelerated molecular transport efficiency. The -OH in SA promoted the transportation of photogenerated carriers and effectively improved the photodegradation rate of pollutants by the composite membranes. The membrane exhibited excellent rejection rate, water flux, and stable self-cleaning, and could achieve cyclic and efficient water purification processes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Wanyuan Gui, Jingru Liu, Xiping Song, Hui Zhang, Junpin Lin, Benli Luan
Summary: This research has successfully designed a novel microfiltration membrane with excellent Nanopollutants filtration efficiency for wastewater treatment, and demonstrated outstanding structural stability.
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
(2021)
Article
Environmental Sciences
Zarrar Salahuddin, Sarah Farrukh, Rahim Jan, Atif Ayub, Arshad Hussain, Maxime Pontie, Anas Ahmed, Muhammad Mubashir
Summary: This study successfully modifies cellulose acetate membranes by incorporating high aspect ratio h-BN nanosheets, leading to a reduction in CO2 gas permeability. The dimensional analysis, functional group analysis, and crystalline phase analysis of nanocomposites were conducted using SEM, FT-IR spectroscopy, and XRD, respectively. Tensile testing and tribological property analysis showed that the nanocomposite samples exhibited higher mechanical strength and adhesion compared to pristine samples.
Article
Engineering, Chemical
Lili Xu, Shuai Liu, Shiyu Zhao, Kuiling Li, Aixin Cao, Jun Wang
Summary: This study developed an innovative and cost-effective electrochemical membrane filtration system for simultaneous ammonia recovery and contaminant removal. The system combines electrocoagulation and membrane stripping processes to achieve efficient wastewater treatment and ammonia resource recovery.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Hongshan Wang, Zhenzhen He, Qiangbin Yang, Guangyong Zeng, Zhaomei Yang, Shengyan Pu
Summary: In this study, MXene nanosheets were functionalized with sodium lignosulfonate (LS) and MoS2 nanosheets were intercalated between the functionalized MXene layers to fabricate a two-dimensional MXene membrane. This composite membrane exhibited high water permeation and excellent dye separation characteristics. It had a significantly higher pure water flux compared to the unfunctionalized MXene membrane and showed good rejection of dye molecules. The composite membrane also demonstrated low rejection of salts, leading to the mutual separation of dyes and salts. Additionally, the membrane displayed excellent stability and anti-fouling ability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Review
Biochemistry & Molecular Biology
Geani Teodor Man, Paul Constantin Albu, Aurelia Cristina Nechifor, Alexandra Raluca Grosu, Szidonia-Katalin Tanczos, Vlad-Alexandru Grosu, Mihail-Razvan Ioan, Gheorghe Nechifor
Summary: This paper discusses the impact of thorium, a slightly radioactive element, on the environment and human health, as well as the potential use of membrane processes for the removal, recovery, and recycling of thorium from industrial residues.
Review
Agricultural Engineering
Yu-Li Yang, You Wu, Yu-Xiang Lu, Yun Cai, Zhen He, Xiao-Li Yang, Hai-Liang Song
Summary: Hybrid osmotic membrane bioreactors utilize various biological or desalination processes to recover nutrients, energy, water, and solutes from wastewater. However, lack of universal parameters and high operation costs are major challenges. Efforts are needed to optimize parameters, control costs, and accelerate real-world applications.
BIORESOURCE TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Ali Azmy, Shunran Li, Giasemi K. Angeli, Claire Welton, Parth Raval, Min Li, Nourdine Zibouche, Lukasz Wojtas, G. N. Manjunatha Reddy, Peijun Guo, Pantelis N. Trikalitis, Ioannis Spanopoulos
Summary: We have developed a strategy for generating porosity in hybrid metal halide materials using molecular cages as structure-directing agents and counter-cations. The resulting material, (DHS)(2)Pb5Br14, is the first porous and water-stable 2D metal halide semiconductor. It exhibits selective and reversible adsorption of H2O and D2O at room temperature, along with broad light emission. The water stability and porosity of this material present new possibilities for applications in solid-state batteries and other areas.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Environmental Sciences
Shahryar Jafarinejad
Summary: This review summarizes the state of forward osmosis (FO) technology for nutrient removal/recovery from wastewater and sludge, aiming to identify areas for future improvements. Further research is needed on the properties of FO, wastewater pretreatment, membrane cleaning strategies, and other factors to promote the full-scale application of FO technology in the future.
Article
Engineering, Chemical
Kew -Ho Lee, Choongkyun Yeom, Jiwon Kim
Summary: A hybrid system of membrane distillation and selective condensation was developed to enhance the separation efficiency of volatile organic components (VOC) from aqueous solution. The experiment showed that organic substances with large differences in boiling point and weak interaction with water, such as methylene chloride and acetone, can be easily removed and recovered using this hybrid system.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Wanjun Cui, Jizhong Meng, Shun Wang, Zhenhu Hu, Guangli Liu, Xinmin Zhan
Summary: This study investigated the removal of 17 beta-estradiol (E2), a natural estrogen found in manure digestate, during nutrient recovery through electrodialysis technology (ED). The results showed that E2 was primarily removed through membrane adsorption in conventional ED, while anode-ED effectively removed E2 through electrochemical oxidation.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Environmental Sciences
P. M. Martins, Bruno Santos, H. Salazar, Sonia A. C. Carabineiro, G. Botelho, Carlos J. Tavares, S. Lanceros-Mendez
Summary: This work focuses on the combination of multifunctional photocatalytic and adsorbent materials in a unique polymeric membrane. The efficient functionalization of TiO2 nanoparticles with gold particles enabled absorption of visible radiation. The produced hybrid materials showed high efficiency in the degradation of norfloxacin and adsorption of arsenic, making them valuable for water treatment processes.
Review
Engineering, Environmental
Muhammad Bilal Asif, Sidra Iftekhar, Tahir Maqbool, Biplob Kumar Pramanik, Shamas Tabraiz, Mika Sillanpaa, Zhenghua Zhang
Summary: The application and research of two-dimensional (2D) membranes in water purification have made significant progress, especially in materials like graphene. However, challenges remain in industrial production, particularly in large-scale fabrication of nanoporous membranes and ensuring membrane stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Lingya Fei, Cheng Chen, Liguo Shen, Yuyao Zhang, Boya Wang, Jiujing Xu, Bisheng Li, Saleem Raza, Hongjun Lin
Summary: A facile approach using graphene oxide (GO) as a 2D nano-surfactant to assist the dispersion and assembly of superhydrophilic amino acid-based Zr-MOF microcrystals into a bulge-structured membrane is reported. The resulting GO/MIP-202(Zr) membrane with 2D/3D hybrid nanochannels and enhanced hydrophilicity showed superior water permeance and antifouling performance, making it promising for water treatment applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Fanchi Meng, Xuetao Qin, Lini Yang, Fei Huang, Jiangyong Diao, Xiangbin Cai, Di Zhang, Ling Li, Pengbo Zhu, Mi Peng, Ning Wang, Dequan Xiao, Lixin Xia, Hongyang Liu, Ding Ma
Summary: This study reports a material with fully-exposed Pd cluster dispersed on nanodiamond-graphene, which exhibits excellent catalytic antibacterial properties. The fully-exposed Pd cluster nanozyme shows higher oxidase-like catalytic performance than Pd single-atom oxidase mimic, Pd nanoparticles oxidase mimic, and previously reported palladium-based oxidase mimics. The Pd cluster sites efficiently catalyze the decomposition of oxygen to generate reactive oxygen species, resulting in strong antibacterial properties.
Article
Multidisciplinary Sciences
Xian Zhou, Xiaofeng Gao, Mingjie Liu, Zirui Gao, Xuetao Qin, Wenhao Xu, Shitong Ye, Wenhua Zhou, Haoan Fan, Jing Li, Shurui Fan, Lei Yang, Jie Fu, Dequan Xiao, Lili Lin, Ding Ma, Siyu Yao
Summary: This study reported a light-driven dehydrogenative coupling reaction for highly selective and efficient synthesis of succinonitrile. The coupling reaction of acetonitrile into succinonitrile was achieved using anatase TiO2 supported Pt catalyst, and under optimized conditions, the selectivity to succinonitrile exceeded 97.5%. The mechanism study revealed that water acted as a cocatalyst in the reaction, assisting the cleavage of sp(3) C-H bond of acetonitrile. The synergy between TiO2 and Pt cocatalyst played an important role in enhancing selectivity and preventing over-oxidation and hydrolysis. This work offers an alternative and mild method for succinonitrile synthesis based on renewable energy, avoiding the use of toxic reagents and stoichiometric oxidative radical initiators.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Ruochen Cao, Mei-Qi Zhang, Chaoquan Hu, Dequan Xiao, Meng Wang, Ding Ma
Summary: The increasing manufacturing and the difficulty of plastic recycling have caused a significant amount of plastic waste. Current chemical recycling and upcycling methods have limitations including harsh conditions and poor selectivity. In this study, a photocatalytic method using heterogeneous graphitic carbon nitride catalysts is demonstrated to oxidize polystyrene into aromatic oxygenates under visible light. The dominant products are benzoic acid, acetophenone, and benzaldehyde when the polystyrene conversion exceeds 90% at 150 degrees C. The reaction mechanism involves the activation of polystyrene, followed by bond oxidation and further oxidation processes to form aromatic oxygenates. The development of materials capable of plastic recycling and upcycling is of great significance. The authors report a novel heterogeneous carbon nitride photocatalyst that efficiently converts polystyrene plastics into aromatic oxygenates, such as benzoic acid.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Zhimin Jia, Mi Peng, Xiangbin Cai, Yunlei Chen, Xiaowen Chen, Fei Huang, Linmin Zhao, Jiangyong Diao, Ning Wang, Dequan Xiao, Xiaodong Wen, Zheng Jiang, Hongyang Liu, Ding Ma
Summary: A fundamental understanding of active sites in heterogeneous catalysts is crucial for the development of effective catalysts. In this study, different forms of Pt species were prepared on a nanodiamond/graphene support, and it was found that the atomically dispersed and fully exposed Pt clusters had the highest utilization efficiency of low-coordinated metal sites. The 0.5 wt% Pt-n/ND@G catalyst showed superior catalytic performance for CO oxidation at low temperature compared to single-atom and nanoparticle catalysts, which was attributed to the weakened CO adsorption and facilitated O2 dissociative adsorption on these atomically dispersed and fully exposed Pt cluster catalysts.
Article
Chemistry, Multidisciplinary
Fei Huang, Mi Peng, Yunlei Chen, Xiangbin Cai, Xuetao Qin, Ning Wang, Dequan Xiao, Li Jin, Guoqing Wang, Xiao-Dong Wen, Hongyang Liu, Ding Ma
Summary: A dual-atom catalyst (DAC) has been developed by manipulating the coordination environment, which exhibits increased reactivity at a lower temperature and high selectivity for acetylene conversion.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Multidisciplinary Sciences
Hao-Xin Liu, Jin-Ying Li, Xuetao Qin, Chao Ma, Wei-Wei Wang, Kai Xu, Han Yan, Dequan Xiao, Chun-Jiang Jia, Qiang Fu, Ding Ma
Summary: Constructing effective catalytic interfaces is crucial for improving catalytic performance. In this study, the authors utilized the stress of MoO3/gamma-Mo2N structure and the interaction between Pt and support to construct an effective catalytic interface for the low-temperature reverse water-gas shift reaction. By depositing isolated Pt atoms onto a thin layer of MoO3 surface, followed by reduction into MoOx and formation of Pt clusters, high-density Pt-n-O-v active sites were created, leading to enhanced catalytic activity.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Zhaohui Yin, Kun Zhang, Na Ma, Xi Liu, Zhen Yin, Hong Wang, Xue Yang, Ye Wang, Xuetao Qin, Danyang Cheng, Yumei Zheng, Lili Wang, Jianxin Li, Zongwei Xu, Na Tang, Bowen Cheng, Dequan Xiao, Ding Ma
Summary: In this study, a robust electrochemical strategy with an efficient membrane electrode was developed for simultaneous removal of organic pollutants and production of pure hydrogen in wastewater. The obtained membrane electrode showed superior degradation performance and stable hydrogen production, with significantly reduced energy consumption.
SCIENCE CHINA-MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiao Zhang, Yao Xu, Yang Liu, Liang Niu, Yanan Diao, Zirui Gao, Bingbing Chen, Jinglin Xie, Mingshu Bi, Meng Wang, Dequan Xiao, Ding Ma, Chuan Shi
Summary: In this study, researchers propose a novel MoCxOy oxygen carrier for syngas production through the chemical looping CH4-CO2 reforming reaction. The combination of molybdenum carbide and nickel particles enables high-selectivity CH4 activation at low temperatures. This is the first study to utilize molybdenum carbide as an oxygen storage material, paving the way for the use of transition metal carbides in chemical looping processes.
Editorial Material
Chemistry, Multidisciplinary
Shuheng Tian, Jiarui Li, Dequan Xiao, Ding Ma
Summary: Pt nanoclusters confined in ordered mesoporous TiO2 promote the formation of interfacial active sites (Ti3+-O-v-Pt delta+) during the reaction, leading to enhanced cyclic catalytic activity.
ACS CENTRAL SCIENCE
(2023)
Article
Engineering, Environmental
Haiping Gao, Shifa Zhong, Raghav Dangayach, Yongsheng Chen
Summary: Ultrafiltration (UF) is a widely used membrane-based technology for water and wastewater treatment. This study employed machine learning to establish the correlation between membrane performance indices, membrane properties, and fabrication conditions. The loading of additives and the polymer content were found to be the most significant features affecting membrane performance. Our approach provides practical guidance for the design of separation membranes through data-driven virtual experiments.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Bo Sun, Jie Zhang, Maolin Wang, Shixiang Yu, Yao Xu, Shuheng Tian, Zirui Gao, Dequan Xiao, Guosheng Liu, Wu Zhou, Meng Wang, Ding Ma
Summary: The authors developed a two-step catalytic process to convert PLA into methyl methacrylate, achieving sustainable valorization of waste PLA and reducing CO2 emissions.
NATURE SUSTAINABILITY
(2023)
Article
Materials Science, Multidisciplinary
Jiliang Ma, Xinze Li, Yancong Li, Gaojie Jiao, Hang Su, Dequan Xiao, Shangru Zhai, Runcang Sun
Summary: This study successfully developed efficient single-atom photocatalysts based on atomically dispersed zinc atoms on carbon nitride for synchronous biorefinery and water splitting. The catalyst exhibited excellent photocatalytic redox activity, producing lactic acid and hydrogen simultaneously. This system demonstrated great universality and provided a novel strategy for the efficient and concomitant production of hydrogen and value-added chemicals from biomass-derived feedstocks aqueous solutions.
ADVANCED POWDER MATERIALS
(2022)
Review
Chemistry, Physical
Chuqiao Song, Zhaohua Wang, Zhen Yin, Dequan Xiao, Ding Ma
Summary: This review provides an overview of the research progress and applications of photothermal catalysis. The mechanisms of photothermal effects and the functioning principles of photothermal catalysis are discussed. Photothermal catalysts are categorized into three types based on their coupling modes of thermochemical and photochemical pathways. Catalyst design strategies and characterization methods for photothermal catalysis are illustrated. Recent research progress on photothermal catalytic reactions for CO2 conversion, CH4 activation, NH3 synthesis, and water splitting are summarized. Challenges and perspectives in this field are presented as a guide for future development in photothermal catalysis.
Article
Environmental Sciences
Haiping Gao, Yongsheng Chen
Summary: In this study, a TFC NF membrane with a hybrid dimensional MXene/CNC framework as an interlayer was fabricated, which exhibited a textured surface structure and high permeability. The membrane showed significantly enhanced water permeability, while maintaining rejection rates for salts and antibiotics. This research offers new possibilities for the rational design of separation membranes using 2D materials-based hybrid frameworks.
Article
Multidisciplinary Sciences
Shaopeng Li, Minghua Dong, Mi Peng, Qingqing Mei, Yanyan Wang, Junjuan Yang, Youdi Yang, Bingfeng Chen, Shulin Liu, Dequan Xiao, Huizhen Liu, Ding Ma, Buxing Han
Summary: This study successfully achieved the selective hydrodeoxygenation of HMF to DMF at room temperature using PdCu nanoalloys, showing excellent performance and high yield. The results indicated that the selective adsorption modes of furanic intermediates on PdCu-BCC nanoalloy surfaces were responsible for the high selectivity of DMF.
