Article
Chemistry, Multidisciplinary
Xiaoyu Zhu, Huiying Liu, Yingying Wu, Jing Ye, Yacheng Li, Zhendong Liu
Summary: In this study, a fiber catalyst was prepared by treating polyacrylonitrile fibers with alkaline dopamine solution, resulting in the formation of a polydopamine/silver nanoparticle coating with high catalytic activity and recyclability. The catalyst showed excellent catalytic performance in the reduction reaction and could be reused multiple times.
Article
Biophysics
Hongbo Suo, Moju Li, Renmin Liu, Lili Xu
Summary: In this study, imidazolium-based ionic liquid was successfully grafted to magnetic polydopamine nanoparticles for lipase immobilization. The immobilized lipase showed excellent activity and stability, with increased affinity to substrate. Additionally, the immobilized lipase can be easily separated from the reaction system with a magnet, providing new ideas for further studies in this field.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Engineering, Manufacturing
Xianwu Cao, Wanjing Zhao, Xianjing Gong, Dongli Zhang, Qijun Su, Junwei Zha, Xinmao Yin, Wei Wu, Robert K. Y. Li
Summary: In this study, core-shell structured polydopamine functionalized silicon carbide whiskers were successfully synthesized to improve the dielectric properties of the composites. The presence of PDA effectively suppressed the dielectric loss, and the thicker PDA layer contributed to enhancing dielectric breakdown strength and reducing AC conductivity. This simple coated PDA shell strategy could be extended to develop high performance dielectric polymer composites with other inorganic fillers.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Chemistry, Multidisciplinary
Bansuri Gami, Khalida Bloch, Shahansha M. Mohammed, Srikanta Karmakar, Satyajit Shukla, Adersh Asok, Sirikanjana Thongmee, Sougata Ghosh
Summary: This study successfully fabricated silver and gold nanoparticles using a plant-based approach, with good characterization properties and catalytic dye degradation performance.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Qiao Tian, Xiaohua Jia, Jin Yang, Sizhe Wang, Yong Li, Dan Shao, Haojie Song
Summary: A strategy using mussel-inspired polydopamine polymerization process to functionalize ZIF-8 is proposed to improve its lubrication stability in water. The modified ZIF-8 can firmly lock water molecules on the surface and enhance its dispersion and stability in water, resulting in significantly reduced friction coefficient and wear track width.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Zinabu Gashaw Asmare, Belete Asefa Aragaw, Minaleshewa Atlabachew, Tessera Alemneh Wubieneh
Summary: In this study, kaolin-supported silver nanoparticle (Ag-NP) composites were synthesized and used as a catalyst for the degradation of methylene blue (MB) dye in water. The synthesized materials showed high catalytic activity and exceptional stability, with a removal efficiency of 97%.
Article
Materials Science, Multidisciplinary
Li Liu, Dongyu Bai, Ying Li, Xianglei Yu, Junpeng Li, Guoyou Gan
Summary: In this study, a thermally conductive filler of hBN*@Ag was synthesized and used to fabricate 3D-hBN*@Ag/EP composites. The introduction of polydopamine improved the interfacial compatibility of hBN-EP, while the AgNPs sandwiched between hBN layers enhanced the thermal conductivity of the composites. The resulting 3D-hBN*@Ag 6.0/EP exhibited high thermal conductivity without affecting the electrical insulation properties.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Applied
Parimal Pandit, Pranita Rananaware, Aviva D'Souza, Mahaveer D. Kurkuri, Varsha Brahmkhatri
Summary: Diatoms are unicellular photosynthetic algae found in all water territories, with potential applications in catalysis, drug delivery systems, adsorbents, and bio-photonics. Functionalized diatoms with thiol groups and decorated with silver or gold nanoparticles were synthesized for oxidation reactions and environmental applications
JOURNAL OF POROUS MATERIALS
(2022)
Article
Chemistry, Applied
Hanan Albalwi, Faten Ismail Abou El Fadl, Mohamed M. Ibrahim, Manal F. Abou Taleb
Summary: This study successfully degraded the model anionic dye Basic Blue 3 using prepared Ca-alginate/silver (Ca-ALG/Ag) nanocomposite beads as catalyst. The physicochemical properties of the nanocomposite beads were characterized using various techniques, confirming their effectiveness in dye degradation. Different kinetic and isothermal models revealed that the degradation process using Ca-ALG/Ag nanocomposite beads as catalyst best fit the pseudo-second-order kinetic model and Langmuir isotherm model.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Chanda Kumari Githala, Shani Raj, Anita Dhaka, Suresh Chand Mali, Rohini Trivedi
Summary: Biogenic synthesis of stable silver nanoparticles (AgNPs) using Plantago ovata leaf extract was successfully achieved in this study. The synthesized AgNPs demonstrated effective removal of organic dyes and inhibition of fungal growth. Various characterization techniques were employed to confirm the structure and properties of the AgNPs. This research has significant implications in addressing dye contamination and fighting against fungal pathogens.
FRONTIERS IN CHEMISTRY
(2022)
Article
Environmental Sciences
C. Vijina, K. P. Majitha, Shima P. P. Damodaran
Summary: In this work, a simple and environmentally friendly approach was followed to synthesize amine-functionalized reduced graphene oxide (RGO)-supported silver nanoparticle (AgNPs) with superior catalytic efficiency for the reduction of organic pollutants. RGO/AgNPs nanohybrid was synthesized by hydrothermal reduction of silver nitrate in the presence of amino-propyl trimethoxy silane (APTMS)-functionalized graphene oxide (GO) nanosheets. The nanohybrid exhibited uniform and smaller-sized silver nanoparticles on the surface of RGO nanosheets due to the presence of APTMS. The RGO/AgNPs nanohybrid showed excellent catalytic activity, favorable kinetic parameters, and sustained catalytic efficiency after recycling, making it a promising catalyst for environmental remediation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Lei Wu, Xiangtai Zhang, Yang Si
Summary: Environmentally friendly, highly efficient, and selective adsorbents are in demand for wastewater treatment. In this study, coconut shell was chemically activated with NaOH, pyrolyzed, and then surface modified with polydopamine (PDA). The resulting CS-NaOH@PDA composites exhibited high adsorption efficiency and selectivity for dyes in aqueous solution, and could effectively remove cationic dyes. The adsorbents also showed a high uptake capacity for methylene blue (MB) at pH 12. The introduction of nitrogen-containing or oxygen-containing functional groups enhanced the adsorption efficiency. Overall, this low-cost and environmentally friendly adsorbent has promising potential for wastewater treatment applications.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Biotechnology & Applied Microbiology
Anita Dhaka, Shani Raj, Chanda kumari Githala, Suresh Chand Mali, Rohini Trivedi
Summary: This study describes the biosynthesis of silver nanoparticles (AgNPs) using Balanites aegyptiaca leaf extract. The biosynthesized AgNPs showed an average size of 10-20 nm, spherical shape, and crystalline nature. The application of these AgNPs showed effective dye degradation and antifungal activity.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Adriana Rodriguez-Garraus, Amaya Azqueta, Francisco Laborda, Ana C. Gimenez-Ingalaturre, Alba Ezquerra, Luis Lostao, Adela Lopez de Cerain
Summary: The overuse of antibiotics as growth promoters is one of the causes of global antimicrobial resistance. A new material containing silver in a clay base was developed as a feed additive. In vitro genotoxicity evaluation showed that the formulation did not cause gene mutations, chromosomal aberrations, or DNA damage, suggesting its potential as an antimicrobial material in animal feed.
Article
Chemistry, Multidisciplinary
Ming-Yen Tsai, Ming-Chen Chang, Hsiu-Wen Chien
Summary: This study explored the effects of polydopamine formation on catalytic activity. Different molecular weights of PEI or PEG were mixed with dopamine at varying concentrations to obtain different PDA/PEI or PDA/PEG codepositions. AgNPs were observed on the surface of these codepositions after soaking in silver nitrate solution, and their catalytic activity for the reduction of 4-nitrophenol to 4-aminophenol was examined. Results showed that AgNPs on PDA/PEI or PDA/PEG codepositions were smaller and more dispersed compared to those on PDA coatings. The catalytic activity of AgNPs on all codepositions was better than that on PDA, and it was related to the size of AgNPs.
Review
Chemistry, Multidisciplinary
Kai He, Guiqiu Chen, Guangming Zeng, Min Peng, Zhenzhen Huang, Jiangbo Shi, Tiantian Huang
Review
Chemistry, Physical
Kai He, Guiqiu Chen, Guangming Zeng, Anwei Chen, Zhenzhen Huang, Jiangbo Shi, Tiantian Huang, Min Peng, Liang Hu
APPLIED CATALYSIS B-ENVIRONMENTAL
(2018)
Article
Engineering, Chemical
Kai He, Guiqiu Chen, Guangming Zeng, Anwei Chen, Zhenzhen Huang, Jiangbo Shi, Min Peng, Tiantian Huang, Liang Hu
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2018)
Review
Chemistry, Multidisciplinary
Kai He, Zhuotong Zeng, Anwei Chen, Guangming Zeng, Rong Xiao, Piao Xu, Zhenzhen Huang, Jiangbo Shi, Liang Hu, Guiqiu Chen
Article
Engineering, Multidisciplinary
Kai He, Guangming Zeng, Anwei Chen, Zhenzhen Huang, Min Peng, Tiantian Huang, Guiqiu Chen
COMPOSITES PART B-ENGINEERING
(2019)
Article
Chemistry, Physical
Kai He, Ming Yan, Zhenzhen Huang, Guangming Zeng, Anwei Chen, Tiantian Huang, Min Peng, Guiqiu Chen
APPLIED CLAY SCIENCE
(2019)
Article
Environmental Sciences
Zhenzhen Huang, Kai He, Zhongxian Song, Guangming Zeng, Anwei Chen, Lei Yuan, Hui Li, Guiqiu Chen
Review
Engineering, Environmental
Min Peng, Yuan Zhu, Hui Li, Kai He, Guangming Zeng, Anwei Chen, Zhenzhen Huang, Tiantian Huang, Lei Yuan, Guiqiu Chen
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Environmental Sciences
Kai He, Rui Sun, Dezhi Yang, Shuchen Wang, Junjie Shu, Wubo Wan, Ying Pan, Fengyang Qin, Feng He, Liyuan Liang
Summary: This study investigates the removal of nitrobenzene by sulfidated microscale zero valent iron (mZVI) and reveals that sulfidation enhances the reactivity of mZVI by providing higher iron utilization efficiency and stronger passivation resistance. The optimal conditions for nitrobenzene reduction were found to be with a sulfide to iron molar ratio of 0.1, resulting in complete transformation of nitrobenzene to aniline. The study also demonstrates that sulfidated mZVI can be applied in real field remediation for faster nitrobenzene reduction in groundwater/soil systems.
Article
Environmental Sciences
Kai He, Shuchen Wang, Yu Liu, Zhenyu Cao, Liwei Yang, Feng He
Summary: This study demonstrates that lignosulfonate modified zero valent iron (LS-ZVI) can significantly enhance the removal of Cr(VI). LS-ZVI has a larger specific surface area and higher surface Fe(0) content compared to conventional ZVI, resulting in efficient Cr(VI) removal. Additionally, LS-ZVI also exhibits excellent removal performance for Ni(II), Zn(II), and Cd(II).
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Biotechnology & Applied Microbiology
Kai He, Guiqiu Chen, Guangming Zeng, Zhenzhen Huang, Zhi Guo, Tiantian Huang, Min Peng, Jiangbo Shi, Liang Hu
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2017)
