Article
Environmental Sciences
Hanyu Wu, Jie Chen, Zengbo Su, Bin Ma, Yizhe Ji, Shuhan Lin, Dingfang Xu, Mingliang Kang
Summary: Eu(III) adsorption on muscovite and phlogopite was investigated under different conditions, showing pH dependency and Na+ independent for both micas, with interlayer sites only available on phlogopite under Na+ and Ca2+ electrolytes. Adsorption of Eu(III) on phlogopite led to interlayer expansion, and the addition of fulvic acid affected both the adsorption behavior of Eu(III) and the structural alteration of phlogopite.
Article
Engineering, Chemical
Shuwen Xue, Yawen Xiao, Keji Wan, Guoqiang Wang, Jinjin Fan, Mingqiang Gao, Zhenyong Miao
Summary: In this study, fulvic acid (FA) was divided into four fractions according to its solubility in different solvents, and adsorbents were prepared by cross-linking with phenolic resin. The results showed that FA-1 had the highest lead removal rate due to its chain-like structure, providing more binding sites for lead. Adsorption isotherms and kinetics were described by the Langmuir model and pseudo-second-order rate equation, respectively. These findings contribute to understanding the adsorption behavior of natural organic matter on heavy metals and its environmental effects.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Environmental Sciences
Shuai Tang, Lujian Lin, Xuesong Wang, Xuan Sun, Anqi Yu
Summary: The study investigated the adsorption of fulvic acid onto polyamide 6 microplastics under various conditions. The adsorption process was found to be spontaneous, endothermic, and affected by initial solution concentrations. Various interactions, such as hydrogen bonding and electrostatic interactions, played different roles in the adsorption of fulvic acid under different solution conditions. The findings provide insights into the adsorption behavior and interaction mechanisms of fulvic acid onto polyamide 6 microplastics for environmental risk assessment.
Article
Engineering, Environmental
Yuanyuan Yan, Fengxiao Zhu, Changyin Zhu, Zhanghao Chen, Shaochong Liu, Chao Wang, Cheng Gu
Summary: This study investigated the leaching behavior of phthalate plasticizer from polyvinyl chloride (PVC) microplastics and found that plastic properties had a significant impact on the release of plasticizer, while environmental factors had a minor influence. Fulvic acid was found to greatly promote phthalate release, suggesting that it can enhance phthalate solubility and solution-plastic affinity. Additionally, the coexistence of fulvic acid and NaCl resulted in more phthalate leaching, indicating a potential role of other fulvic acid-like additives in the leaching process.
Article
Chemistry, Physical
Ziyi Cheng, Jing Yang, Lei Li, Yucheng Chen, Xingrun Wang
Summary: A novel composite adsorbent was developed for the simultaneous removal of anionic and cationic pollutants from combined pollution wastewater. The composite adsorbent effectively adsorbed anionic azo dye and heavy metal cations through electrostatic attraction and adsorption bridging.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Environmental Sciences
Min Hu, Wenhao Wu, Daohui Lin, Kun Yang
Summary: In this study, a mesopore-rich activated carbon (KAC) with high surface area was used as an adsorbent to investigate the adsorption of fulvic acid (FA). The results showed that KAC exhibited better adsorption capacity for FA compared to previous studies on biochars (BCs) and activated carbons (ACs), and the negative pH effect on adsorption performance was also weaker. Additionally, KAC was capable of adsorbing FA fractions with various molecular weights, higher aromaticity, and higher polarity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Physical
Xu Qiao, Yuhan Xia, Xuhan Su, Bingkun Wang, Guang Chen, Huan Chen
Summary: This study prepared a porous carbon material using fulvic acid and investigated its adsorption performance towards model pollutants, brilliant green and sulfadiazine sodium salt. The results showed that the porous carbon material exhibited excellent adsorption capacity and cycling stability, which is significant for improving the recycling capacity of fulvic acid.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Analytical
M. Groeneveld, N. Catalan, K. Einarsdottir, A. G. Bravo, D. N. Kothawala
Summary: This study assesses the stability of fluorescence characteristics of dissolved organic matter (DOM) to differences in solution pH and finds that fluorescence intensity is generally stable within the pH range of 5.5 to 7.5. However, commercial humic substance samples are more sensitive to pH changes.
ANALYTICAL METHODS
(2022)
Article
Environmental Sciences
Wen Shi, Zhiwei Wang, Feili Li, Yuxin Xu, Xijing Chen
Summary: The multilayer adsorption of lead and fulvic acid on algal surface significantly increases the adsorption capacity of lead, enhancing the environmental risk. This study investigates the adsorption behavior of multilayer adsorption and identifies carboxyl groups as the major functional groups responsible for binding lead ions. Solution pH and temperature have critical influences on multilayer adsorption. The results provide data support for the prevention and control of heavy metals in water ecosystems.
Article
Engineering, Environmental
Hongyang Cui, Xin Wen, Zhanhai Wu, Yue Zhao, Qian Lu, Zimin Wei
Summary: In this study, fulvic acid substances were analyzed using fluorescence quenching and parallel factor analysis. Three components were identified based on the analysis. Two-dimensional correlation spectroscopy and complexation model were used to study the binding characteristics of fulvic acid with Cd(II) and Cu(II). The results provide theoretical guidance and technical support for practical applications.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Zan Li, Yinan Cui, Wentao Yan, Di Zhang, Yan Fang, Yujie Chen, Qian Yu, Ge Wang, Heng Ouyang, Chen Fan, Qiang Guo, Ding -Bang Xiong, Shenbao Jin, Gang Sha, Nasr Ghoniem, Ze Zhang, Y. Morris Wang
Summary: Additive manufacturing enables self-stabilization of dislocations in metallic materials through heating-cooling cycles, resulting in a unique dislocation assembly that enhances material strength and steady strain hardening.
Article
Engineering, Environmental
Xiaorui Chen, Wei He, Yujing Liang, Chenyi Yuan, Shuhui Zhang, Fei Liu, Yi Xiao
Summary: This study investigated the impact of chemically reactive organic matters like fulvic acid (FA) on the degradation and stability of black phosphorus nanosheets (BPNS) in natural waters. It revealed that FA significantly enhances the degradation of BPNS and explained the mechanism behind this degradation. This research is of great significance for the risk assessment of black phosphorus in natural waters.
Article
Environmental Sciences
Hongfeng Chen, Mingxia Hou, Zhouyang He, Yu Liang, Jinling Xu, Wenfeng Tan
Summary: This study investigated the complex species of fulvic acid on the surface of minerals (kaolinite and goethite) and their thermodynamic characteristics. The adsorption of kaolinite for fulvic acid increased at pH < 5.5 and decreased at pH > 5.5, while that of goethite consistently decreased with increasing pH. Fulvic acid was mainly adsorbed on the edge-face and O-face to form inner sphere complexes on kaolinite and outer sphere complexes on goethite. The molar adsorption enthalpies and complexation mechanisms differed between kaolinite and goethite.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Changsheng Jin, Zhongwu Li, Mei Huang, Xiang Ding, Mi Zhou, Jia Chen, Bolin Li
Summary: Manganese oxide minerals (MnOs) have a significant influence on the mobility and fate of cadmium (Cd) in the environment. However, the presence of natural organic matter (OM) coating on MnOs complicates the retention and availability of harmful metals. This study synthesized organo-mineral composites using birnessite and fulvic acid (FA) and investigated their performance and underlying mechanism in Cd(II) adsorption. The results showed that the interaction between FA and MnOs significantly increased the adsorption capacity of Cd(II) due to the enhanced dispersion of MnOs particles and increased specific surface area. The dominant Cd(II) adsorption mechanism was identified as precipitation with minerals and complexation with Mn-O groups and acid oxygen-containing functional groups of FA. The findings contribute to a better understanding of Cd behavior in the environment and have implications for the remediation of Cd-contaminated water and soil using organo-mineral composites.
Article
Environmental Sciences
Wenbo Deng, Yajing Wang, Wenjuan Liu
Summary: The adsorption of DOM and Pb(II) on Mn-substituted goethite samples was investigated. The results showed that Mn substitution increased the specific surface area of goethite, resulting in more adsorption of DOM and Pb(II). However, Mn substitution also weakened the electrostatic attraction between DOM and the minerals, reducing the adsorption capacity of goethite for DOM. Overall, Mn-goethite can be used to sequester DOM and remediate soil contaminated with PTEs.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Juan Liu, Xuwen Luo, Jin Wang, Tangfu Xiao, Diyun Chen, Guodong Sheng, Meiling Yin, Holger Lippold, Chunlin Wang, Yongheng Chen
ENVIRONMENTAL POLLUTION
(2017)
Article
Geochemistry & Geophysics
Juan Liu, Jin Wang, Tangfu Xiao, Zhi'an Bao, Holger Lippold, Xuwen Luo, Meiling Yin, Jiamin Ren, Yongheng Chen, Wensheng Linghu
APPLIED GEOCHEMISTRY
(2018)
Article
Environmental Sciences
Juan Liu, Xuwen Luo, Jin Wang, Tangfu Xiao, Meiling Yin, Nick Stanley Belshaw, Holger Lippold, Lingjun Kong, Enzhong Xiao, Zhi'an Bao, Nuo Li, Yongheng Chen, Wensheng Linghu
Article
Environmental Sciences
R. Barthen, L. Karimzadeh, M. Gruendig, J. Grenzer, H. Lippold, K. Franke, J. Lippmann-Pipke
Article
Geochemistry & Geophysics
Holger Lippold, Lotfollah Karimzadeh, Johannes Kulenkampff, Laurin Wissmeier, Christin Stuhlfauth, Madeleine Stoll, Johanna Lippmann-Pipke
APPLIED GEOCHEMISTRY
(2018)
Article
Environmental Sciences
Juan Liu, Meiling Yin, Xuwen Luo, Tangfu Xiao, Zhifeng Wu, Nuo Li, Jin Wang, Weilong Zhang, Holger Lippold, Nick Stanley Belshaw, Yuexing Feng, Yongheng Chen
Review
Environmental Sciences
Juan Liu, Xuwen Luo, Yuqing Sun, Daniel C. W. Tsang, Jianying Qi, Weilong Zhang, Nuo Li, Meiling Yin, Jin Wang, Holger Lippold, Yongheng Chen, Guodong Sheng
ENVIRONMENT INTERNATIONAL
(2019)
Article
Environmental Sciences
Juan Liu, Shixing Ren, Yuting Zhou, Daniel C. W. Tsang, Holger Lippold, Jin Wang, Meiling Yin, Tangfu Xiao, Xuwen Luo, Yongheng Chen
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2019)
Article
Environmental Sciences
Juan Liu, Xudong Wei, Yuting Zhou, Daniel C. W. Tsang, Zhi'an Bao, Meiling Yin, Holger Lippold, Wenhuan Yuan, Jin Wang, Yuexing Feng, Diyun Chen
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Lotfollah Karimzadeh, Holger Lippold, Madlen Stockmann, Cornelius Fischer
Article
Environmental Sciences
Holger Lippold, Lukas Zedek
Summary: The study describes the slow kinetics of multivalent metal dissociation from humic substances, which is further impeded with increasing time of contact. Findings from isotope exchange experiments suggest that the time dependence of dissociation can be fully described by a complex two-site approach.
Article
Chemistry, Multidisciplinary
Christian Sonnendecker, Juliane Oeser, P. Konstantin Richter, Patrick Hille, Ziyue Zhao, Cornelius Fischer, Holger Lippold, Paula Blazquez-Sanchez, Felipe Engelberger, Cesar A. Ramirez-Sarmiento, Thorsten Oeser, Yuliia Lihanova, Ronny Frank, Heinz-Georg Jahnke, Susan Billig, Bernd Abel, Norbert Straeter, Joerg Matysik, Wolfgang Zimmermann
Summary: Enzyme-based hydrolysis is a promising strategy for sustainable recycling of plastics. A study found that the enzyme PHL7 can completely degrade plastics and the products can be used to synthesize new plastics.
Article
Materials Science, Multidisciplinary
Holger Lippold, Laura Kahle, Christian Sonnendecker, Joerg Matysik, Cornelius Fischer
Summary: This study investigates the 3-dimensional development of the surface characteristics of amorphous PET film reacted with a highly effective hydrolase enzyme using vertical scanning interferometry and confocal microscopy. The results show that the degradation process is non-uniform with different reaction times and spatial reactivity distributions. The data suggest that initial roughening process hinders degradation and demonstrate the potential role of targeted surface modification in plastic waste treatment.
NPJ MATERIALS DEGRADATION
(2022)
Article
Environmental Sciences
Juan Liu, Yuchen Zhou, Jingye She, Daniel C. W. Tsang, Holger Lippold, Jin Wang, Yanjun Jiang, Xudong Wei, Wenhuan Yuan, Xuwen Luo, Shujing Zhai, Lan Song
ENVIRONMENTAL POLLUTION
(2020)
Proceedings Paper
Automation & Control Systems
L. Zedek, H. Lippold, J. Sembera
