Article
Chemistry, Multidisciplinary
Yunlan Peng, Hongle Shi, Zhenran Wang, Yongsheng Fu, Yiqing Liu
Summary: Diclofenac (DCF) is a frequently detected non-steroidal anti-inflammatory drug in various environmental media. In this study, UV-activated peroxymonosulfate was used to degrade DCF effectively, with increased pH and PMS dosage enhancing the degradation efficiency, while high initial concentration and organic matter decreased the removal efficiency of DCF.
Article
Materials Science, Multidisciplinary
Sohom Chandra, Atikur Hassan, Akhtar Alam, Neeladri Das, Neeladri Das
Summary: The research highlights the use of ionic porous materials, specifically iCON-5, for efficient removal of various anionic pollutants from water sources. The material exhibits good physicochemical stability, high uptake capacity for organic/inorganic species, ease of regeneration, and ability to be reused multiple times. Additionally, iCON-5 shows competency in extracting anionic pollutants from real-world water samples, making it a promising adsorbent for wastewater treatment.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Environmental Sciences
Rui Zhao, Huaili Zheng, Zheng Zhong, Chun Zhao, Yongjun Sun, Yaoyao Huang, Xinyu Zheng
Summary: The development of a novel multilayer adsorbent FCS-PD with magnetic separation ability and surface functionality has shown great potential for removing pharmaceutical diclofenac (DCF) from water. With a maximum adsorption capacity of 434.78 mg/g under neutral conditions, FCS-PD demonstrated superior performance compared to other reported adsorbents. Analysis on high-resolution X-ray photoelectron spectroscopic (XPS) and Fourier transform infrared spectroscopy (FTIR) revealed the mechanism behind DCF removal by FCS-PD.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Polymer Science
Supriya Atta, Jarrod Cohen, Joachim Kohn, Adam J. Gormley
Summary: Ring opening polymerization (ROP) is typically conducted using anhydrous reagents and inert atmosphere, which are barriers for non-experts. Here, two new techniques for limited ROP of epsilon-caprolactone (CL) without pre-drying reagents were developed using a laboratory oven. By evaporating water in a vacuum oven or polymerizing through water with titanium isopropoxide (TTIP), variable chain lengths and molecular weight distributions of PCL were achieved, with TTIP showing better performance for higher molecular weights and block copolymer formation.
Article
Chemistry, Inorganic & Nuclear
Ling Wang, Kun Zhao, Zhihao Qi, Yonggang Yang, Wei Luo, Wenshu Yang, Longhua Li, Jinhui Hao, Weidong Shi
Summary: State-of-the-art transition-based electrocatalysts in alkaline media often experience surface reconstruction during oxygen evolution reaction, resulting in the loss of crystalline matrix. Low potential discharge provides a gentle way for surface reconstruction, but the fundamental understanding of this process is still unclear. In this study, different crystalline matrices were used as electrocatalysts for discharge region reconstruction.
INORGANIC CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Do Hoon Kwon, Feng Zhang, Justin G. Fedor, Yang Suo, Seok-Yong Lee
Summary: The study used thermal titration methods and cryo-EM to elucidate the conformational trajectory of the vanilloid receptor TRPV1 with resiniferatoxin (RTx) bound. The results showed that RTx binding induced a sequential conformational wave in TRPV1, opening the intracellular gate first, followed by selectivity filter dilation and pore loop rearrangement to reach the final open state. Understanding this RTx-mediated long-range allostery in TRPV1 could enhance the therapeutic potential of RTx for pain relief in advanced cancer or knee arthritis.
NATURE COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Ji Won Lee, Donghyun Lee, Hye-Jin Lee, Soojin Shim, Je Hun Kim, Changha Lee
Summary: This study observed that the oxidative degradation of urea by chlorination can be enhanced by a pH swing, where the first stage reaction occurs under acidic pH and the second stage reaction occurs at a neutral or alkaline pH. The degradation rate of urea is influenced by chlorine dose and pH in the second stage. pH-swing chlorination is based on the pH dependence of urea chlorination sub-processes. The formation of different chlorinated ureas is favored under specific pH conditions.
Article
Engineering, Environmental
Jinbing Huang, Xiaoyan Liu, Shiwei Xie
Summary: Oxalate promotes the activation of permanganate for the degradation of diclofenac, but its effect is pH-dependent, and sufficient concentration is required for stabilizing Mn(III)-OA.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Chemistry, Analytical
Ruishuang Xu, Mengjiu Zhao, Zhengqiang Chen, Zhihong Gao, Haiyan Song, Taicheng An, Shengrun Zheng, Fenglong Gu
Summary: The study demonstrates that penthiopyrad is rapidly degraded in the presence of MnO2, with sulfoxides, sulfones, and diketones identified as the main degradation products. Environmental factors such as temperature, pH, and the presence of humic acid were found to impact the degradation of penthiopyrad by delta-MnO2. The theoretical guidance provided by the study offers insights into the potential fate of penthiopyrad in natural environments.
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2021)
Article
Chemistry, Multidisciplinary
Run Huang, Chaoting Guan, Qin Guo, Zhen Wang, Hanping Pan, Jin Jiang
Summary: This study investigated the oxidation kinetics of diclofenac (DCF) by permanganate (Mn(VII)) and explained the previously unclear pH-dependency. The study also proposed a kinetic model involving the formation of an intermediate between Mn(VII) and DCF or its analogues. New degradation pathways of DCF were proposed based on the identified oxidation products, and the introduction of reducing agents such as Mn(II) and bisulfite significantly improved the oxidation kinetics of DCF by Mn(VII).
CHINESE CHEMICAL LETTERS
(2023)
Article
Polymer Science
Salumeh Issazadeh, Masihullah Jabarulla Khan, Houlei Gan, Juan Zhang, Luke C. Henderson, Russell J. Varley
Summary: This work presents the synthesis and characterization of highly aromatic bisoxazoline monomers with diphenyl ether, furan, and thiophene backbones. The impact of these moieties on polymerization and glass transition temperatures is studied through cure and reaction kinetics investigations. Two catalysts, methyl triflate and dodecyl benzene sulfonic acid, are used to explore their role in controlling the cationic ring-opening polymerization mechanism. The polymerization process is monitored and characterized using differential scanning calorimetry and kinetic modeling.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Environmental Sciences
Jing Li, Xin Hu, Juan Wang, Youru Yao, Yong Zhang, Lixiao Ni, Shiyin Li
Summary: This study investigates the mechanism by which extracellular polymeric substances (EPS) influence the oxidation of phenol by permanganate (Mn (VII)). The results show that EPS significantly enhances the oxidation efficiency of Mn (VII) for phenol by promoting the formation and stability of EPS-MnO2 colloids.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Polymer Science
Francisco W. M. Ribeiro, Isaac Omari, Gilian T. Thomas, Mathias Paul, Peter J. H. Williams, J. Scott McIndoe, Thiago C. Correra
Summary: This study presents a mass spectrometric evaluation of the initial step of benzoxazine polymerization and distinguishes between the phenoxy and phenolic products formed by different pathways. The findings suggest a preference for the phenoxy product in the initial stages of the reaction, while the phenolic product is observed at later stages. This information is valuable in understanding the benzoxazine polymerization process and optimizing polymerization conditions.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Michael Lalanne-Tisne, Audrey Favrelle-Huret, Wim Thielemans, Joao P. Prates Ramalho, Philippe Zinck
Summary: Organocatalysts are important in polymerization reactions. This study used Density Functional Theory to investigate the ring-opening polymerization of trimethylene carbonate, revealing a dual mechanism and confirming TBD as a more efficient catalyst.
Article
Polymer Science
Steffen M. Weidner, Andreas Meyer, Jana Falkenhagen, Hans R. Kricheldorf
Summary: This study investigated the polycondensation of ethyl l-lactate (ELA) using seven different tin catalysts and other compounds. The results showed successful synthesis of polylactide (PLA) and revealed the formation of polycondensation and cyclic structures through loops on the surface of crystallites in the solid state.
Article
Engineering, Chemical
Dean Song, Hanyang Cheng, Ruiping Liu, Zhimin Qiang, Hong He, Huijuan Liu, Jiuhui Qu
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2017)
Article
Chemistry, Analytical
Dean Song, Rongning Liang, Xiaohua Jiang, Huiqing Sun, Fanyu Kong, Bo Lv, Qiannan Fang, Wei Qin
ANALYTICAL METHODS
(2018)
Article
Chemistry, Physical
Dean Song, Huiqing Sun, Xiaohua Jiang, Fanyu Kong, Zhimin Qiang, Aiqian Zhang, Huijuan Liu, Jiuhui Qu
JOURNAL OF MOLECULAR STRUCTURE
(2018)
Article
Chemistry, Analytical
Dean Song, Hanyang Cheng, Xiaohua Jiang, Huiqing Sun, Fanyu Kong, Rongning Liang, Zhimin Qiang, Huijuan Liu, Jiuhui Qu
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2018)
Article
Environmental Sciences
Dean Song, William A. Jefferson, Hanyang Cheng, Xiaohua Jiang, Zhimin Qiang, Hong He, Huijuan Liu, Jiuhui Qu
Article
Environmental Sciences
Yingjie Yang, Raghvendra Pratap Singh, Dean Song, Qianru Chen, Xuebo Zheng, Chengsheng Zhang, Minggang Zhang, Yiqiang Li
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2020)
Article
Environmental Sciences
Xiaohua Jiang, Dean Song, Dabin Wang, Ruiming Zhang, Qiannan Fang, Huiqing Sun, Fanyu Kong
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2020)
Article
Environmental Sciences
Xiaohua Jiang, William A. Jefferson, Dean Song, Hanyang Cheng, Fengmin Li, Zhimin Qiang, Aiqian Zhang, Huijuan Liu, Jiuhui Qu
JOURNAL OF ENVIRONMENTAL SCIENCES
(2020)
Article
Chemistry, Analytical
Kaikai Liu, Yuehai Song, Dean Song, Rongning Liang
ANALYTICA CHIMICA ACTA
(2020)
Article
Environmental Sciences
Dean Song, Huiqing Sun, Yingjie Yang, Xiaolin Wang, Yan Sun, Xiuhua Liu, Mengjiao Huang, Chao Feng, Yijia Zhuang, Jiguang Zhang, Fanyu Kong
Summary: PAEs are widely used plasticizers and common environmental pollutants. Soils used for tobacco cultivation contain PAEs, primarily DBP and DEHP. The carcinogenic risk of PAE exposure to Chinese people is low at present, with DEHP exposure through dietary consumption being the main concern.
JOURNAL OF SOILS AND SEDIMENTS
(2021)
Article
Agronomy
Zhiyuan Li, Jiangtao Chao, Xiaoxu Li, Gongbo Li, Dean Song, Yongfeng Guo, Xinru Wu, Guanshan Liu
Summary: bZIP transcription factors play important regulatory roles in plant growth and stress responses. The study classified 132 bZIP genes in the tobacco genome into 11 groups and identified segmental duplications as crucial for gene family expansion. Expression analysis showed differential expression of NtbZIP genes in various tissues and stresses, with NtbZIP62 responding strongly to salinity stress and enhancing salt tolerance when overexpressed. This research provides valuable insights for future functional analyses of bZIP genes in tobacco.
Review
Plant Sciences
Dean Song, Xiaohua Jiang, Dabin Wang, Song Fang, Haixiang Zhou, Fanyu Kong
Summary: This review summarizes recent investigations on quinclorac, discussing its action mechanism, evolution of resistance, and potential risks caused by residue detection. The lack of remediation techniques is highlighted as an area for further research and development.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Energy & Fuels
Yingnan Lin, Chan Wang, Guofeng Yu, Haoya Wang, Rongning Liang, Fanyu Kong, Dean Song
Summary: Utilizing renewable and green biomass for energy and chemical supply is a promising solution to overcome fossil resource shortage and ecological deterioration. A combination strategy involving hydrothermal extraction, natural seawater extraction, and residual solid pyrolysis has been developed to achieve efficient and complete biomass utilization.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Multidisciplinary
Dabin Wang, Lixia Zhao, Dean Song, Jun Qiu, Fanyu Kong, Liang-Hong Guo
Article
Chemistry, Multidisciplinary
William A. Jefferson, Chengzhi Hu, Dean Song, Hong He, Jiuhui Qu