Article
Environmental Sciences
M. F. Salcedo, A. Y. Mansilla, S. L. Colman, M. J. Iglesias, V. A. Alvarez, C. A. Casalongue
Summary: 2,4-D is harmful to dicotyledonous plants and poses potential risks to non-target plant species, indicating the need for adsorbents to mitigate its damage to sensitive plants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Ramesh Vinayagam, Saivedh Ganga, Gokulakrishnan Murugesan, Gayathri Rangasamy, Ruchi Bhole, Louella Concepta Goveas, Thivaharan Varadavenkatesan, Niyam Dave, Adithya Samanth, V. Radhika Devi, Raja Selvaraj
Summary: In this study, ferric oxide nanoparticles impregnated with activated carbon from Ulva prolifera biomass were synthesized and used for the adsorption of 2,4-Dichlorophenoxyacetic acid (2,4-D). The nanocomposite exhibited a jagged, irregular surface with pores and showed the presence of carbon, oxygen, and iron. Various characterization techniques confirmed the structural and functional properties of the UPAC-Fe2O3 nanocomposite. Adsorption experiments revealed that the nanocomposite followed the Langmuir isotherm and pseudo-second-order kinetic model, indicating monolayer chemisorption. Furthermore, thermodynamic analysis demonstrated the spontaneous and feasible endothermic nature of the adsorption process.
Article
Engineering, Environmental
Amber M. White, Michelle E. Nault, Katherine D. McMahon, Christina K. Remucal
Summary: Laboratory studies fail to accurately predict transformation rates of pesticides due to the absence of environmental conditions. This study combines laboratory and field data to identify the dominant loss processes of 2,4-dichlorophenoxyacetic acid (2,4-D) herbicide in lakes. Irradiation studies show direct photodegradation of 2,4-D, but modeling suggests it is negligible in environmental conditions. Field campaigns and microcosm experiments reveal sediment microbial communities as responsible for 2,4-D degradation in lakes. The persistence of transformation products is not a major concern according to unsuccessful quantification in both laboratory and field studies.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Amber M. White, Michelle E. Nault, Katherine D. McMahon, Christina K. Remucal
Summary: This study combines laboratory and field data to identify the dominant loss processes of the herbicide 2,4-D in lakes, demonstrating the importance of microbial and photochemical degradation. Attempts to quantify transformation products were unsuccessful, but results suggest that their persistence is not a major concern.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Tamara Russ, Lennart Enders, Julia M. Zbiegly, Phani Sankar Potru, Johannes Wurm, Bjoern Spittau
Summary: This study demonstrates that 2,4D is neurotoxic for mDA neurons and that the presence of glia cells enhances 2,4D-induced neuron death. These findings are important for understanding the development and progression of Parkinson's disease.
Article
Environmental Sciences
Gurjaspreet Singh, Sanjay Sharma, Akshpreet Singh, Mohit, Anita Devi, Sofia Gupta, Pooja Malik, Sumesh Khurana, Sajeev Soni
Summary: The present study produces nanocomposites of silica-based organosilane as a fluorescent sensor for the selective detection of 2,4-D. The synthesized organosilane is grafted onto a silica surface and characterized using various spectroscopic techniques. The sensing system based on the synthesized materials shows good selectivity and sensitivity towards 2,4-D in real water samples with a recovery percentage of above 98%.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Joshua O. Ighalo, Victor E. Ojukwu, Chisom T. Umeh, Chukwunonso O. Aniagor, Charles E. Chinyelu, Oluwaseun J. Ajala, Kanika Dulta, Adedapo O. Adeola, Selvasembian Rangabhashiyam
Summary: This review provides insights into the mechanisms and performance of adsorption for the removal of 2,4-D from water. The highest adsorption capacity was achieved by a metal-organic framework (MOF), and the interactions between 2,4-D and adsorbents mainly involve electrostatic interactions, hydrogen bonds, van der Waals forces, and 7C-7C interactions. Kinetic and thermodynamic modeling revealed the factors influencing the rate and spontaneity of adsorption. The adsorbents were found to be reusable over multiple cycles.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Chemistry, Physical
Sushil Kumar, Deeksha Mehta, Savita Chaudhary, Ganga Ram Chaudhary
Summary: The study developed a fluorescent sensor based on Pr@Gd2O3 nanoparticles for rapid and highly sensitive detection of 2,4-D herbicide, showing good selectivity and recovery efficiency.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Guanlong Yu, Yi Yang, Shitao Wang, Zhi Yu, Qifang Sun, Yifu Li, Julong Sn, Tao Ling, Zhilai Shu
Summary: Pesticide pollution poses a significant threat to the ecological environment and human health. A new photocatalyst material, Bi2O2CO3/BiOBr0.9I0.1, was prepared and showed excellent visible light photocatalytic activity for the degradation of the pesticide 2,4-dichlorophenoxyacetic acid (2,4-D).
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Environmental Sciences
Xiaoting Zhang, Runping Han
Summary: In this study, a zirconium elemental organic framework UiO-66-NH2 was synthesized and shown to have good adsorption properties for removing 2,4-dichlorophenoxyacetic acid (2,4-D) from water. The adsorption of 2,4-D on UiO-66-NH2 was studied using various characterization methods and static adsorption experiments. The results indicated that UiO-66-NH2 had a wide pH range for adsorption and good salt tolerance, with an adsorption equilibrium time of approximately 2 hours. Langmuir model was found to describe the adsorption isotherms, and the adsorption kinetics followed a pseudo-second order kinetic model and Elovich model. UiO-66-NH2 showed a regeneration efficiency of 95% after 5 cycles using a 0.01 mol L-1 NaOH desorption solution. The feasibility of practical application of UiO-66-NH2 was explored by simulating actual wastewater at different pH.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Environmental Sciences
Rocio Giron-Navarro, Ivonne Linares-Hernandez, Elia Alejandra Teutli-Sequeira, Veronica Martinez-Miranda, Fortunata Santoyo-Tepole
Summary: Organochlorine pesticides, particularly 2,4-dichlorophenoxyacetic acid (2,4-D), have raised concerns worldwide due to their toxicity to human health and the environment at low concentrations and their persistence in the environment. Various advanced oxidation processes (AOPs) have been developed to degrade 2,4-D, with ozonation and electrochemical methods showing high degradation efficiencies but also high energy costs. Photocatalytic and photo-Fenton processes show optimal efficiencies for degradation and mineralization, while the Fenton process is a cost-effective option with lower degradation efficiencies. Evaluating the strengths and weaknesses of these AOPs can help in selecting the most suitable operational conditions for effective pollutant degradation in wastewater treatment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Environmental
Yu Wang, Yong-Sheng Tian, Jian-Jie Gao, Jing Xu, Zhen-Jun Li, Xiao-Yan Fu, Hong-Juan Han, Li-Juan Wang, Wen-Hui Zhang, Yong-Dong Deng, Cen Qian, Zhi-Hao Zuo, Bo Wang, Ri-He Peng, Quan-Hong Yao
Summary: In this study, we created a novel engineering Escherichia coli with a reconstructed complete degradation pathway of 2,4-dichlorophenoxyacetic acid (2,4-D) to solve the problem of screening highly efficient degradation bacteria. The engineered strain successfully expressed all nine genes in the degradation pathway and could quickly and completely degrade 0.5 mM 2,4-D within 6 h. The engineered strain also showed less damage from 2,4-D compared to the wild-type strain and could effectively remediate 2,4-D pollution in natural water and soil.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Laise M. Carvalho, Antonio F. Soares-Filho, Maciel S. Lima, Joao F. Cruz-Filho, Taisa C. M. Dantas, Geraldo E. Luz Jr
Summary: The uncontrolled use of pesticides poses a threat to the environment and public health. Researchers studied the remediation of the herbicide 2,4-D by supporting WO(3) and TiO(2) on a molecular sieve, with the sample W-Ti-S(25) showing the highest photocatalytic activity under ultraviolet irradiation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Tainara Vieira, Valter Antonio Becegato, Alexandre Tadeu Paulino
Summary: This study investigated the adsorption characteristics of 2,4-dichlorophenoxyacetic acid on different hydrogel materials, revealing that adsorption is influenced by various factors and confirming the adsorption mechanism through various tests. The synthesized hydrogels were found to be efficient solid matrices for the removal of 2,4-dichlorophenoxyacetic acid and chemical oxygen demand from water pollution.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Environmental Sciences
Silvia Barba, Jose Villasenor, Manuel A. Rodrigo, Pablo Canizares
Summary: This study aimed to compare three biological strategies for in situ remediation of 2,4-D polluted soil, finding that EK-biostimulation offered the highest pollutant removal efficiency, while biobarriers achieved removal rates between 75% to 85%.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
