Review
Chemistry, Multidisciplinary
Xing Hu, Rui-tang Guo, Long-fei Hong, Xiang-yin Ji, Wei-guo Pan
Summary: Graphite carbon nitride (g-C3N4), a non-metallic photocatalyst with special band structure and unique surface properties, faces limitations such as visible light response, small specific surface area, and rapid recombination of photogenerated carriers leading to low photocatalytic efficiency. Modification with quantum dots (QDs) shows promise in enhancing the photocatalytic activity of g-C3N4, particularly in applications like CO2 reduction, hydrogen production, and pollutants degradation.
Article
Chemistry, Physical
Chen Li, Tianyi Sun, Guohui Yi, Dashuai Zhang, Yan Zhang, Xiaoxue Lin, Jinrui Liu, Zaifeng Shi, Qiang Lin
Summary: In this study, novel ternary photocatalysts Ag/CNQDs/g-C3N4 composites were successfully prepared for efficient removal of norfloxacin. The composites exhibited suitable surface area, crystal structure, and stability. The isotype heterojunction structure between CNQDs and g-C3N4 promoted effective carrier separation. Surprisingly, the synergistic effect of up-conversion fluorescent properties of CNQDs and surface plasmon resonance (SPR) effect of Ag NPs contributed to the excellent photocatalytic property of Ag/CNQDs/g-C3N4. The optimized composites showed almost 100% removal rate of norfloxacin within 120 minutes, with a kinetic constant (k) value more than 4 times higher than that of g-C3N4.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Multidisciplinary
Reece T. T. Lawrence, Mark P. P. Croxall, Cheng Lu, M. Cynthia Goh
Summary: A series of TiO2-NGQD composite photocatalysts were synthesized and showed increased photocurrent generation and photocatalytic degradation of phenol under full spectrum and visible only illumination. The composites could switch from anodic to cathodic photocurrent by changing the light source. The prepared composites outperformed the commercial standard P25 TiO2, with the 8 wt% NGQD composite showing a visible improvement of over 600% compared to P25. TiO2-NGQDs have significant potential in photocatalysis, energy harvesting, and water splitting.
Review
Chemistry, Multidisciplinary
Shilpa Patial, Sonu, Anita Sudhaik, Naresh Chandel, Tansir Ahamad, Pankaj Raizada, Pardeep Singh, Nhamo Chaukura, Rangabhashiyam Selvasembian
Summary: This article reviews the recent progress and potential applications of carbon quantum dots (CDs) and graphitic carbon nitride (g-C3N4) as a promising photocatalyst. The interaction between g-C3N4 and CDs enhances adsorptive and photocatalytic activity, making it a versatile material in various fields.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Environmental
Qiuting Zhang, Yanrong Peng, Yan Lin, Shaohua Wu, Xiaochao Yu, Chunping Yang
Summary: The study successfully enhanced the efficiency of photocatalytic degradation of antibiotics by synthesizing metal-free boron nitride quantum dots modified bisphenol S-doped g-C3N4 nanosheets.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Qing Li, Shaowen Zhang, Wenjie Xia, Xiaoqi Jiang, Zhiwei Huang, Xiaomin Wu, Huawang Zhao, Chung-shin Yuan, Huazhen Shen, Guohua Jing
Summary: Formaldehyde (CHOH), a common volatile organic compound, has adverse effects on human health. This study explores the use of g-C3N4 quantum dots (QDs) decorated on TiO2(001) to enhance the photocatalytic activity for CHOH degradation. The chemical configuration and combination mode of g-C3N4 QDs/TiO2(001) were investigated, along with the transport mechanism of photoinduced carriers. Results show that g-C3N4 QDs significantly improve the photodegradation and mineralization efficiencies of CHOH compared to TiO2(001).
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Chemistry, Multidisciplinary
SongSik Pak, KwangChol Ri, Chenmin Xu, Qiuyi Ji, Dunyu Sun, Chengdu Qi, Shaogui Yang, Huan He, MyongNam Pak
Summary: The g-C3N4/Y-TiO2 Z-scheme heterojunction photocatalysts exhibited enhanced photocatalytic activity compared to g-C3N4/TiO2 and Y-TiO2, mainly due to the suppression of photo-generated electron-hole pair recombination by the Z-scheme heterojunction. Superoxide radicals and photo-generated holes played a key role in the photocatalytic degradation of RhB by g-C3N4/Y-TiO2.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Youwei Sun, Xingzhou Yuan, Yanjuan Wang, Wanshu Zhang, Yanda Li, Zhuolei Zhang, Ji Su, Jian Zhang, Shaozheng Hu
Summary: The CeO(2)QDs/g-C3N4 photocatalyst significantly enhances visible light absorption, reduces electron-hole recombination rate, and improves photodegradation performance through an appropriate Z-scheme charge transfer mechanism.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Yunhao Tian, Nan Jia, Hui Ma, Geying Liu, Zhibin Xiao, Yizhou Wu, Liang Zhou, Juying Lei, Lingzhi Wang, Yongdi Liu, Jinlong Zhang
Summary: The Photo-Fenton process is an advanced oxidation technology used for eliminating organic pollutants. This paper successfully fabricated a g-C3N4 quantum dots incorporated hierarchical macro-mesoporous CuOSiO2 composite, which showed excellent degradation performance against the antibiotic pollutant norfloxacin under visible-light assisted heterogeneous Fenton process. The stable, efficient, and environmentally friendly Cu-based heterogeneous catalyst is expected to become an effective solution for organic pollution removal.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Materials Science, Composites
Changwang Yan, Zhong Zhao, Wanhui Jin, Qian Yu, Jing Yu, Jianhua Ran, Shuguang Bi, Deshan Cheng, Daiqi Li, Guangming Cai, Xin Wang
Summary: Construction of charge transfer channel between carbon quantum dots (CQDs) and g-C3N4 nanosheets enhances the piezo-catalytic performance of CQDs/g-C3N4 nano-composites, resulting in a significant degradation rate of methylene blue (MB). The increased generation of reactive oxygen species (ROS) due to the enhanced surface area and existence of charge transfer channel is responsible for the dye degradation. This study provides a new strategy for the construction of carbon-based nanocomposites and a new perspective for wastewater treatment in dark environments.
COMPOSITES COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Hao Zhang, Jian He, Pan Wu, Wei Jiang
Summary: The proper design of interfacial contact of heterojunction photocatalyst is crucial for the transfer/separation of interfacial charge carriers. In this study, KBiO3/g-C3N4 Z-scheme heterojunction photocatalysts were successfully synthesized, resulting in significantly improved photocatalytic performance for the degradation of crystal violet and phenol. The enhancement was attributed to the internal electric field formed by the Z-scheme photocatalyst, leading to enhanced visible light absorption and inhibition of electron-hole recombination.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Review
Materials Science, Multidisciplinary
Xingxing Yang, Lina Sheng, Yongli Ye, Jiadi Sun, Zaijun Li, Xiao Ning, Jin Cao, Xiulan Sun
Summary: Carbon dots/graphite carbon nitride (CDs/g-C3N4), a novel composite photocatalyst, has great potential for energy regeneration and environmental remediation due to its advantages of being metal-free, low cost, easily tunable, and excellent photocatalytic performance. This study reviews the development of synthetic strategies, photocatalytic enhancement mechanisms, and applications of CDs/g-C3N4 in various areas. The composite strategies of CDs and g-C3N4, as well as their advantages and disadvantages, are outlined. The photocatalytic enhancement mechanism is explained based on the changes in band structure, electronic properties, light absorption range, and interfacial charge transfer. The applications of CDs/g-C3N4 in hydrogen evolution, pollutant degradation, CO2 reduction, and bacterial disinfection are systematically reviewed.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Sunbel Noor, Rida Shahzadi Haider, Saima Noor, Shamaila Sajjad, Sajjad Ahmed Khan Leghari, Maria Mehboob, Mingce Long
Summary: An innovative ternary composite of carbon quantum dots (CQDs)/nickel oxide (NiO)/graphitic carbon nitride (g-C3N4) was fabricated, showing improved photocatalytic and photo electrochemical properties.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Guomeng Dong, Yiwei Zhang, Yanyun Wang, Qinghua Deng, Chaochao Qin, Yingjie Hu, Yuming Zhou, Guokai Tian
Summary: A 3D/2D/0D TiO2/g-C3N4/Ti3C2 QDs composite catalyst was prepared by modifying S-scheme heterojunction TiO2/g-C3N4 with Ti3C2 quantum dots, which showed excellent photocatalytic hydrogen evolution performance under visible light.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Environmental Sciences
Sandy Maged, Ola M. El-Borady, Hamza El-Hosainy, Maged El-Kemary
Summary: In this study, a ternary composite 2% Ag/2D g-C3N4/g-C3N4 QDs heterojunction photocatalyst was successfully prepared, which exhibited significantly enhanced photocatalytic activity for pollutant degradation. The results also showed that loading Ag NPs on 2D g-C3N4 can enhance charge separation and improve photocatalytic performance.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Agricultural Economics & Policy
Jingjing Wang, Xiaoyang Wang
Summary: The newly launched water futures market is facing a serious illiquidity issue due to scarce trading volume. The primary causes of illiquidity include the heterogeneity and limited size of spot water markets, the opacity of the water futures settlement index, and the lack of public information on spot water market transactions.
APPLIED ECONOMIC PERSPECTIVES AND POLICY
(2023)
Article
Computer Science, Software Engineering
Kexin Fei, Chao Wang, Jiaxu Zhang, Yuanzhong Liu, Xing Xie, Zhigang Tu
Summary: This work presents a novel two-stream network, called FP-Net, which integrates optical flow and human pose information for robust and accurate fall detection in videos. By detecting human pose and estimating optical flow, appearance and motion features are extracted and fed into a classifier for fall classification. Experimental results show that FP-Net achieves state-of-the-art performance on two popular datasets.
Article
Engineering, Civil
Xiangfeng Lv, Lingfeng Meng, Xin Lin, Xuan Ji, Yahan Yang
Summary: The study of subgrade concrete failure at different degrees of damage is important for the safe operation of roads. The research results provide a theoretical basis for the quantitative division, monitoring, and early warning of road damage areas.
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2023)
Article
Ecology
Wentong Zou, Zhi Cao, Yanjun Wang, Meifang Jin, Maozi Lin
Summary: Through studying the physiological indexes, heavy metal contents, and accumulation of two different plant species, Pennisetum sinese and Lolium perenne, under different planting patterns, it was found that intercropping resulted in higher heavy metal accumulation compared to monoculture. P. sinese had higher accumulation amounts of Pb, Cd, Cu, and Zn, indicating its suitability for phytoremediation of heavy metal-contaminated soils.
RESTORATION ECOLOGY
(2023)
Article
Computer Science, Artificial Intelligence
Jun Xie, Zhaocheng He, Yiting Zhu
Summary: Automated valet parking (AVP) is an advanced technology for improving parking efficiency and security. This study proposes a system-side deep reinforcement learning (DRL)-based cooperative approach to solve the parking space allocation problem in a large AVP environment. The approach formulates the problem as a Markov decision process (MDP) and uses reward shaping and action embedding techniques to achieve better global AVP efficiency.
APPLIED INTELLIGENCE
(2023)
Article
Materials Science, Multidisciplinary
Fengqun Pan, Xiangjun Jiang, Xingkun Dong, Jingli Du, Yanping Wang
Summary: In this paper, an optimal control strategy for surface accuracy of shape memory cable-net (SMC) structure under space thermal radiation is proposed. By introducing shape memory alloy (SMA) into the cable-net structure, the SMC structure with shape memory effect (SME) is able to transform space thermal radiation into a favorable factor for on-orbit adjustment of surface accuracy, achieving shape preservation of the cable-net antenna in space environment.
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
(2023)
Article
Economics
Jingjing Li, Xianming Wu
Summary: Enterprises in emerging markets increasingly prioritize social responsibility alongside economic development. However, existing literature lacks research on the relationship between corporate social responsibility (CSR) and acquirer returns in cross-border mergers and acquisitions (M&As). This study examines 214 cross-border M&As in China from 2010 to 2019 and categorizes CSR into four components. The findings indicate that supplier and consumer responsibility, as well as the social contribution of enterprises, significantly promote acquirer returns in cross-border M&As, while shareholder responsibility and environmental responsibility have negative effects. This conclusion may be specific to the Chinese context of cross-border M&As.
APPLIED ECONOMICS LETTERS
(2023)
Article
Automation & Control Systems
Jianlin Wang, Xinquan Zhang
Summary: This paper investigates the problem of overcoming controller vulnerability in nonlinear uncertain switched systems considering actuator saturation. The sufficient condition for nonfragile robust exponential stabilization is derived using the method of minimum dwell time. Switching law and nonfragile state feedback controllers are then designed to achieve robust exponential stabilization. Additionally, the design issue of controllers is transformed into a convex optimization problem with linear matrix inequalities (LMI) constraints, aiming to enlarge the estimation of domain of attraction for the closed-loop system.
ASIAN JOURNAL OF CONTROL
(2023)
Article
Environmental Sciences
Yanan Wang, Tieliang Zhang, Yujie Zhao, Tong Lv, Wenjing Liu, Xiaowei Liu
Summary: This study reports the use of bacterial cells for the biosynthesis of Au@TiO2 as an efficient catalyst for the degradation of methylene blue. The bio-Au2@TiO2 catalyst showed the highest catalytic activity with a kinetics constant of 0.195 min(-1), and maintained stable activity for up to 10 cycles. The presence of Au nanoparticles on the bio-TiO2 layers decreased the band gap energy of TiO2, leading to the generation of abundant photogeneration hydroxyl radicals and enhanced photocatalytic activity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Energy & Fuels
Guojun Yin, Fengzhou Zhang, Yuan Gao, Wenjing He, Qing Zhang, Shubin Yang
Summary: Adding potassium salts can increase the yield of bio-char, especially at temperatures between 400 and 600 degrees Celsius. This is mainly due to the deposition of volatiles on the potassium salts, which leads to an increase in both the yield and free radical concentration of bio-char.
JOURNAL OF THE ENERGY INSTITUTE
(2023)
Article
Allergy
Cui-Lian Guo, Ruo-Yu Lu, Chong-Shu Wang, Jie-Fang Zhao, Li Pan, Hui-Cheng Liu, Bo Liao, Zheng Liu
Summary: This study aimed to determine the optimal anchor for T2 inflammation and identify clinical characteristics and nasal secretion biomarkers predicting different endotypes in chronic rhinosinusitis with nasal polyps (CRSwNP). IL-13 was found to be the best marker for the T2 endotype, and clinical characteristics and nasal secretion biomarkers were useful for predicting different endotypes.
INTERNATIONAL ARCHIVES OF ALLERGY AND IMMUNOLOGY
(2023)
Article
Multidisciplinary Sciences
Qidi Wang, Chenglong Zhao, Jianlin Wang, Zhenpeng Yao, Shuwei Wang, Sai Govind Hari Kumar, Swapna Ganapathy, Stephen Eustace, Xuedong Bai, Baohua Li, Marnix Wagemaker
Summary: High-entropy alloys/compounds with increased configurational entropy exhibit improved functional properties compared to conventional materials. In this study, the impact of increasing entropy in liquid electrolytes for rechargeable lithium batteries was demonstrated. The introduction of multiple salts in the electrolyte induced a larger diversity in solvation structures, enhancing lithium-ion diffusivity and the formation of stable interphase passivation layers. A low-concentration dimethyl ether electrolyte with four salts showed enhanced cycling stability and rate capability. These findings highlight the potential of high-entropy electrolytes for lithium batteries and beyond.
NATURE COMMUNICATIONS
(2023)
Meeting Abstract
Peripheral Vascular Disease
Yuxi Li, Beining Wang, Fangfang Fan, Haoyu Weng, Long Zhang, Jie Jiang, Bo Zheng, Yan Zhang, Jianping Li
JOURNAL OF HYPERTENSION
(2023)
Letter
Surgery
Binghao Zhao, Hao Xing, Wenbin Ma
Article
Obstetrics & Gynecology
Tiefeng Cao, Jinhui Li, Huimin Shen
Summary: This study evaluated the efficacy and safety of laparoscopic cervical cerclage compared to transvaginal cerclage in pregnant women. The results showed that laparoscopic cerclage was effective in prolonging gestational age and increasing the incidence of full-term labor, without causing additional complications.
ARCHIVES OF GYNECOLOGY AND OBSTETRICS
(2023)
Article
Engineering, Chemical
Yunfei Yu, Xue Yang, Chenchen Zhang, Jie Chen, Wei Lin, Jianqiang Meng
Summary: This study reports an environmentally friendly and simple approach for preparing double-network (DN) ion gel membranes with high strength and excellent gas separation performance. By optimizing crosslinking density, mass ratio, and the type and content of free ionic liquid, the mechanical and gas separation properties of the DN membrane are improved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Si-qi Jiang, Qiang Gao, Xi-guang Li, Chao-zhu Deng, Jun Qiu, Xiang-nan Zhu
Summary: A dual-strengthening pretreatment method is proposed to remove PVDF more efficiently and enhance the leaching of LiCoO2. Experimental results show that dual-strengthening pretreatment can effectively remove PVDF and significantly improve the leaching efficiency compared to single pretreatment methods.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zengchi Hu, Xiaoyu Wang, Xiaohui Zhang, Xue Li, Jiangbin Xia
Summary: The rapid fabrication of high-performance composite membranes based on CMPs using simple and low-cost methods is challenging. In this study, three CMPs-based composite membranes were rapidly fabricated with adjustable size using unidirectional diffusion synthesis. The microstructural design enhanced the rejection rates of the membranes and they showed strong hydrolytic resistance, thermal stability, and acid-base resistance. Electrostatic adsorption and the adjustable microstructures significantly varied the repellence of the membranes to different charged molecules.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Farzaneh Rouhani, Matineh Ayedi, Nasser Safari
Summary: Introducing defects into porous metal-organic frameworks is important for improving their adsorption performance. Quasi-MOFs, an underutilized variant of large-scale, fundamentally deficient MOFs, have been found to have substantial amounts of unsaturated metal sites to offset the drawbacks of MOFs. In this study, a quasi-MOF was produced using a water-stable MOF and demonstrated significantly improved phosphate adsorption capability due to the presence of defect sites.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Valentin Reungoat, Morad Chadni, Louis M. M. Mouterde, Fanny Brunissen, Florent Allais, Helene Ducatel, Irina Ioannou
Summary: This study focuses on the recovery of sinapic acid using liquid-liquid extraction assisted by a hollow fiber membrane contactor from an aqueous feed obtained through the hydrolysis of mustard bran. The screening of solvents of different chemical nature showed that all tested solvents had an extraction efficiency of more than 80% for pH < 5. Four solvents were selected for use in the hollow fiber membrane contactor, and the volatile solvents showed higher mass transfer coefficients compared to non-volatile solvents. The extraction efficiency was intensified by increasing the initial concentration of sinapic acid and the feed-to-solvent ratio. CPME was found to have optimal recovery efficiency at a phase ratio of 8:1, yielding 0.9 g of sinapic acid per liter of CPME used.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Takahiro Sakamoto, Takafumi Hanada, Hayate Sato, Mayu Kamisono, Masahiro Goto
Summary: The emergence of the battery society has led to a high demand for battery metals, resulting in a strain on their supply. This study introduces a novel technique using a hydrophobic deep eutectic solvent (DES) for leaching and recovering battery metals from low-grade nickel laterite ores. The DES enables selective leaching and recovery of the metals, offering a promising pathway for the extraction of critical battery metals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Rongrong He, Jiarui Chen, Chunyao Zhang, Dan Lu, Lin Zhang, Tao He
Summary: Researcher has developed a method to quantify the charge density in nanofiltration (NF) membrane separation layer and applied it in NF membranes that can separate Mg2+ and Li+. The results showed that overcompensated amine groups played a major role, and there was a linear relationship between charge density and coating bi-layers or PAH layers.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zhijian Zhang, Min Chen, Zhe Lin, Zhichao Yang, Yafeng Du, Zhihui Chen, Zhenhao Yang, Kongyin Zhao, Ligang Lin
Summary: Membrane technology plays an important role in molecular/ion separation processes, but faces challenges such as membrane fouling. This study introduces a new ion-crosslinking method to fabricate copper alginate hydrogel membranes with improved mechanical strength and antimicrobial capabilities. The membranes exhibit excellent separation performance and enhanced long-term molecule/ion separation through improved anti-swelling properties. Molecular dynamics simulations and life cycle analysis highlight the pore structure and environmental friendliness of the hydrogel membranes. These findings provide valuable insights for developing sustainable hydrogel membranes with stable performance and high separation efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Dongmei Liu, Aiying Guo, Yanling Qi, Zhixin Ji, Hongjuan Li, Zhiwei Zhang, Xinyue Zhang, Kunze Wu, Aijun Cai
Summary: In this study, a stable magnetic Mg/Mn-layered double oxide-doped biochar composite (MgMnLDO-MBC) was prepared and successfully used for the removal of antibiotics and bacteria from wastewater. The composite exhibited enhanced surface areas, adsorption sites, and free radicals, leading to improved catalytic activity. The effects of different factors on the removal efficiency were evaluated, and the composite showed good reusability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Feng Wang, Zhaoyong Bian, Yaru Zhang, Wenchao Yu, Qiang Zhang, Hui Wang
Summary: In this study, a nanofibrous layered structure of Ff-Ti3C2Tx-Co3O4 was prepared by self-assembling nanofibrous Co3O4 with lamellar fluorine-free MXene (Ff-Ti3C2Tx). The Ff-Ti3C2Tx-Co3O4 exhibited excellent catalytic activity for degradation, resistant to ionic interference, and maintained high removal efficiency of sulfamethoxazole (SMX) in municipal wastewater. The rapid SMX degradation involved fast electron transfer in redox cycles with PMS and the generation of 1O2 via PMS ->center dot O2 -> 1O2. This work provides new insights into antibiotic degradation mechanisms and electron transfer based on PMS activation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Weipeng He, Jiacheng Luo, Yujie Wu, Tianhao Luo, Chen Tang
Summary: This study comparatively evaluated the role of cationic, anionic, and nonionic polyacrylamides (PAMs) in ballasted flocculation of clay suspensions under different aluminum sulfate (AS) coagulant dosages. The selection of PAMs and AS dosage had a significant influence on the size and shear resistance of ballasted floc aggregates.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Lixian Wang, Lizhi Zhao, Didi Si, Zhixin Li, Huiqin An, Hui Ye, Qingping Xin, Hong Li, Yuzhong Zhang
Summary: Metalloporphyrin-based nanozymes integrated with poly (vinylidene fluoride) membrane show high catalytic activity and reusability for the decolorization of Congo Red dye in continuous flow process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Yongfei Ma, Chenyu Zeng, Yongzhen Ding, Jiayi Tang, Ondrej Masek, Zhikang Deng, Rui Mu, Zulin Zhang
Summary: In this study, sludge-derived biochar (SBC) was functionalized with various iron salts to enhance its adsorption ability for sulfamethoxazole (SMX) and magnetic collection performance. Ball milling was further employed to treat the optimal iron salt functionalized SBC (MSBC), resulting in ball milled SBC (BMSBC) with improved adsorption performance for SMX. The dominant driving mechanism for SMX adsorption onto BMSBC was confirmed to be multiple physicochemical forces, including 7C-7C conjugation, pore filling, H-bonding, Fe-O complexation, and electrostatic interactions. BMSBC exhibited favorable adsorption ability for SMX in actual waters and could be easily collected within 1 min due to its magnetic sensitivity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Jinglin Tan, Xiaohui Mao, Wenjihao Hu, Hongbo Zeng
Summary: This study investigates the influence of PDMS chain architectures on surface properties and reveals that PDMS coatings with looped structures exhibit superior hydrophobicity, self-cleaning, and water sliding compared to coatings with linear structures. Additionally, both looped and linear PDMS coated stainless steel mesh/polyester fibers show efficient separation of oil/water mixture.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Wei-Liang Chen, Chih-Chia Cheng, Chien-Hsing Lu, Jem-Kun Chen
Summary: This study designs a novel sandwich-structured capacitor that reduces the absorption time of pollutants using dielectrophoresis force. By coating graphene oxide on polystyrene microspheres as adsorbents and encapsulating them within the capacitor, the adsorption rate is significantly enhanced. Additionally, frequency manipulation allows for the recycling of adsorbents and concentration of dyes, minimizing secondary pollution.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)