Article
Environmental Sciences
Seyed Vahid Mousavi, Parham Joolaei Ahranjani, Sara Farshineh Saei, Naser Mehrdadi, Gholamreza Nabi Bidhendi, Binta Hadi Jume, Shahabaldin Rezania, Amin Mojiri
Summary: The present study developed and evaluated nano-adsorbents based on zirconium oxide and graphene oxide as a novel adsorbent for the efficient removal of ammonia from industrial effluents. Various parameters were optimized and kinetic models and adsorption isotherms were used to verify the efficiency of the adsorbent.
Article
Engineering, Environmental
Antonysamy Jeyaseelan, Ayman A. Ghfar, Mu Naushad, Natrayasamy Viswanathan
Summary: The study developed amine functionalized graphene oxide (AGO) with high defluoridation capacity for fluoride removal. Through optimization of parameters and investigation of adsorption isotherms, kinetics and thermodynamics, the fluoride removal mechanism of AGO was found to be electrostatic attraction.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Ping Jiang, Lin Zhou, Wei Wang, Na Li, Fang Zhang
Summary: This study evaluated the removal of graphene oxide from water using fly ash, and found that under optimal conditions, fly ash can effectively remove graphene oxide, reducing its negative impact on organisms and ecosystems. The experimental results demonstrated that fly ash is a good material for removing graphene oxide from aqueous solution.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Chemical
Rafal Sitko, Marcin Musielak, Maciej Serda, Ewa Talik, Beata Zawisza, Anna Gagor, Malgorzata Malecka
Summary: A superior nanoadsorbent (GO-TSC) for highly effective removal of mercury ions from water solutions was developed by grafting thiosemicarbazide molecules onto graphene oxide nanosheets. The adsorption on GO-TSC is significant across a broad pH range, with a maximum adsorption capacity of 231 mg g(-1) at pH 3.5 and impressive selectivity towards Hg(II) ions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Environmental Sciences
Evans Dovi, Aaron Albert Aryee, Jianjun Li, Zhaohui Li, Lingbo Qu, Runping Han
Summary: The presence of emerging pollutants like PO43- and NO3- in water bodies has raised global concerns about their impact on water bodies and human health. ACWNS, a novel adsorbent, was found to effectively remove phosphate and nitrate, showing exothermic and spontaneous adsorption. The adsorption mechanism is attributed to electrostatic interactions and hydrogen bonding, with ACWNS demonstrating a higher attraction towards the ions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Dong Hao, Yue-Xian Song, Ying Zhang, Hong-Tao Fan
Summary: By controlling the dosage of triethanolamine, two nanocomposites of monoclinic-ZrO2@rGO and tetragonal-ZrO2@rGO were successfully prepared, with the tetragonal-ZrO2@rGO exhibiting a higher adsorptive amount for OTC. Both nanocomposites show a selective uptake of OTC among tetracycline antibiotics, with adsorption reaching equilibrium in 15 minutes and being independent of pH in the range of 4-8. The interactions between OTC and the nanocomposites were revealed through Fourier transform infrared and XRD analysis, with surface complexation, pi-pi, and cation-pi bonding interactions playing a crucial role.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Swati Verma, Ki-Hyun Kim, Navneet Kumar, Satya Sundar Bhattacharya, Mu Naushad, Raj Kumar Dutta
Summary: In this study, ammonia-functionalized graphene oxide (NH(3)GO) sheets were synthesized via solvothermal method for the adsorptive removal of organic pollutants in water. The NH(3)GO sheets exhibited high adsorption capacity and partition coefficient for different types of organic pollutants. Thermodynamic analysis revealed the endothermic and spontaneous nature of the adsorption process.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Physical
Komal Trivedi, Sanjeev R. Kane, U. K. Goutam, Himanshu Srivastava, Chetan K. Modi
Summary: A lucid and efficient protocol for the multicomponent synthesis of 2-amino-3-cyano-7-hydroxy-4H-chromenes was developed using a novel heterogeneous catalyst, ZrO2-f-ED-GO. The synthesized catalyst demonstrated higher yields and excellent reusability, even with a small quantity. The protocol offers economic viability and mild reaction conditions.
MOLECULAR CATALYSIS
(2023)
Review
Environmental Sciences
Himangshu Boruah, Neha Tyagi, Sanjay Kumar Gupta, Mayuri Chabukdhara, Tabarak Malik
Summary: Arsenic contamination is a global concern due to its serious health hazards caused by prolonged exposure to drinking water. Iron-oxide nanomaterials have gained attention as cost-effective and efficient adsorbents for arsenic removal. However, most research is based on laboratory findings and cannot be replicated in natural water environments. This study aims to provide a comparative analysis of arsenic removal using different iron-oxide nanomaterials and insights into future research directions.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Article
Environmental Sciences
A. Khan, S. Noor, M. S. Khan, R. Khattak, A. Malik, U. U. Rahman, I. Zekker, N. U. Rahman, L. A. Shah
Summary: Aromatic triarylmethane dyes residues cause serious water pollution in the environment. Adsorbents such as graphene oxide (GO) have been found to effectively remove crystal violet (CV) dye from wastewater. Different parameters and experimental results indicate that GO, graphite, and graphene quantum dots (GQDs) have high removal capacities for CV dye, with GQDs showing the highest efficiency. Thermodynamic and kinetic experiments suggest that the adsorption process is spontaneous, endothermic, and follows both pseudo-first and pseudo-second-order kinetics. The Langmuir adsorption isotherm model fits the adsorption data best, indicating chemisorption with single coverage layer.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Mohamed E. Mahmoud, Mohamed F. Amira, Seleim M. Seleim, Gehan M. Nabil, Magda E. Abouelanwar
Summary: This study focused on utilizing the GO@NPANI@ZrSiO4 composite material for microwave adsorptive dye removal, achieving successful isolation of crystal violet and reactive black 5 dyes with excellent removal efficiency in a short period of time. Characterization techniques like FT-IR, SEM, TEM, XRD, TGA, and BET were used to confirm the structure of assembled GO@NPANI@ZrSiO4.
JOURNAL OF NANOSTRUCTURE IN CHEMISTRY
(2021)
Article
Engineering, Chemical
Duygu Anakli, Mehtap Ersan
Summary: A graphene oxide/zirconium oxide (GO/ZrO2) nanocomposite was developed and evaluated as an efficient adsorbent for the removal of Reactive Red120 (RR120) dye. The nanocomposite was characterized using various techniques, and the effects of adsorption parameters were evaluated using statistical optimization. The results indicate that the GO/ZrO2 nanocomposite is effective in reducing environmental pollution by removing RR120 dye.
CHEMICAL ENGINEERING & TECHNOLOGY
(2023)
Article
Engineering, Chemical
Parya Fatholahi, H. Salehzadeh, Katayon Hosseini, K. Wantala, H. P. Shivaraju, D. Jenkins, B. Shahmoradi
Summary: This study investigates the removal efficiency of erythromycin antibiotic from aquatic media using magnetic graphene oxide nanoparticles. The results show that the maximum adsorption of erythromycin occurs at pH 3, antibiotic concentration of 100 mg/L, contact time of 120 min, temperature of 313 K, and adsorbent dose of 0.01 g. The thermodynamic parameters indicate that the adsorption process is spontaneous and endothermic within the temperature range of 288 to 313 K. The pseudo-second-order model better describes the laboratory data compared to the first-order model. The research suggests that magnetic nanographene adsorbent with a 63.93% removal efficiency can effectively eliminate erythromycin from aquatic media.
DESALINATION AND WATER TREATMENT
(2023)
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
Biochemistry & Molecular Biology
Ahmed M. Omer, Eman M. Abd El-Monaem, Abdelazeem S. Eltaweil
Summary: A multi-featured adsorbent was developed for the removal of hexavalent chromium ions. Aminated graphene oxide was synthesized and incorporated into cellulose acetate beads, resulting in the production of GO-NH2@CA-NH2 composite beads. The composite beads exhibited enhanced adsorption performance with a short equilibrium time. The adsorption process followed Freundlich isotherm and pseudo-second-order kinetic models, and was found to be endothermic, spontaneous, and random. The composite beads also retained their adsorption characteristics over multiple cycles.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Environmental Sciences
Muqiu Hu, Xin Zhao, Jinghan Gu, Lulu Qian, Zhiqing Wang, Yuanyuan Nie, Xiaoyu Han, Long An, Haiqiang Jiang
Summary: Due to its simple process, environmental friendliness, and low operating costs, biometallurgy has become a popular technology for metals recovering from low-grade ores and tailings. An optimized agar was used to isolate and grow functional bacteria, resulting in the successful isolation of six functional stains. These strains were further tested for their ability to leach metals from polymetallic sulfide tailings, with significant improvements observed when the strains were mixed together. The selection of leaching process should be based on tailings composition and target metals.
ENVIRONMENTAL RESEARCH
(2024)
Review
Environmental Sciences
Saqib Hassan, Aswin Thacharodi, Anshu Priya, R. Meenatchi, Thanushree A. Hegde, R. Thangamani, Ht Nguyen, Arivalagan Pugazhendhi
Summary: An Endocrine Disrupting Chemical (EDC) is a compound that disrupts the function of the endocrine system and is found in the environment. EDCs, such as Bisphenol A and pesticides, have been shown to have negative effects on the female reproductive system. Understanding the relationship between EDCs and women's health is crucial for developing strategies to protect reproductive health and informing public policy decisions.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Lichang Zhou, Zhaoling Li, Boyi Cheng, Jinqi Jiang, Xinqi Bi, Zongping Wang, Guanghao Chen, Gang Guo
Summary: Thiosulfate can promote sulfur-mediated bacterial activity, inhibit glycogen accumulating organisms, and enhance denitrification efficiency. After the carbon source is reduced, the competitive ability of glycogen accumulating organisms increases, resulting in reduced sulfate reduction.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Claire E. Campbell, Devyn L. Cotter, Katherine L. Bottenhorn, Elisabeth Burnor, Hedyeh Ahmadi, W. James Gauderman, Carlos Cardenas-Iniguez, Daniel Hackman, Rob McConnell, Kiros Berhane, Joel Schwartz, Jiu-Chiuan Chen, Megan M. Herting
Summary: Recent studies have found a connection between air pollution and increased risk for behavioral problems during development. However, more longitudinal studies are needed to investigate how exposure during the transition to adolescence may affect emotional behaviors.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Jing-hong Liang, Ru-yu Yang, Mei-ling Liu, Ying-qi Pu, Wen-wen Bao, Yu Zhao, Li-xin Hu, Yu-shan Zhang, Shan Huang, Nan Jiang, Xue-ya Pu, Shao-yi Huang, Guang-hui Dong, Ya-jun Chen
Summary: This study examines the association between urban Green and blue spaces (GBS) exposure and Emotion and behavior problems (EBP) in youth populations. The findings suggest that higher exposure to GBS, particularly green spaces (GS) and blue spaces (BS), is associated with a decrease in the risk of developing total difficulties in young individuals. The joint effect of GS and BS may also contribute to the decrease in EBPs.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Diego Ruiz-Sobremazas, Mario Ruiz Coca, Miguel Morales-Navas, Rocio Rodulfo-Cardenas, Caridad Lopez-Granero, Maria Teresa Colomina, Cristian Perez-Fernandez, Fernando Sanchez-Santed
Summary: Air pollution is associated with a range of health issues and gestational exposure to environmental pollutants may be linked to neurodevelopmental disorders. This study investigated the effects of oral gestational exposure to particulate matter (PM) on ultrasonic vocalizations (USV). The findings suggest that this exposure may lead to social deficits and abnormal gene expression related to neurotransmitter systems. Further research is needed to better understand the effects of air pollution on neurodevelopmental disorders and the neurotransmission systems involved.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Yagmur Kabakci, Sadiye Kosar, Ozgur Dogan, Fehmi Gorkem Uctug, Osman Atilla Arikan
Summary: This study investigated the effect of electrohydrolysis pretreatment on municipal solid waste. The results showed that applying electrohydrolysis pretreatment increased methane production and reduced the time required for hydrolysis, suggesting it is a promising method to improve anaerobic digestion efficiency.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Chuanwu Zhao, Yaozhong Pan, Hanyi Wu, Yu Zhu
Summary: This study analyzed the impact of industrial zones on urban heat islands using remote sensing images and a novel spectral index. The research found that the contraction or expansion of industrial zones has a significant effect on land surface temperature. The results are valuable for environmental assessment and fine management of industrial cities.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Bang Du, Zhongzhong Wang, Piet N. L. Lens, Xinmin Zhan, Guangxue Wu
Summary: This study investigated the performance, syntrophic relationships, microbial communities, and metabolic pathways of ethanol-fed reactors with different operational modes and solids retention times. The results showed that different microorganisms were enriched under different SRT conditions, and syntrophic bacteria related to methane production could be enriched under low SRT conditions.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Gokulan Ravindiran, Sivarethinamohan Rajamanickam, Muralikrishnan Ramalingam, Gasim Hayder, Balamurugan Karupaiya Sathaiah, Madhava Krishna Reddy Gaddam, Senthil Kumar Muniasamy, Priya Arunkumar
Summary: The present study investigated the sustainable approach for wastewater treatment using waste algal blooms. The biochar produced by the marine algae Ulva reticulata was used to remove chromium, nickel, and zinc from aqueous solutions. The study examined the adsorbents' properties and stability using SEM/EDX, FTIR, and XRD. The results showed that the biochar had high removal efficiency for the toxic metals, and the packed bed column effectively removed the heavy metal ions. The Thomas and Adams-Bohart models were found to best fit the regression values, and desorption studies were conducted to understand the sorption and elution processes.
ENVIRONMENTAL RESEARCH
(2024)
Review
Environmental Sciences
Vignesh Vinayagam, Kavitha Nagarasampatti Palani, Sudha Ganesh, Siddharth Rajesh, Vedha Varshini Akula, Ramapriyan Avoodaiappan, Omkar Singh Kushwaha, Arivalagan Pugazhendhi
Summary: The presence of pollutants in water contributes to global pollution and poses significant threats to humans and wildlife. Finding effective wastewater treatment techniques is crucial for reducing pollutant accumulation in the environment. This paper highlights recent advances in the electrochemical advanced oxidation method and other processes for treating pharmaceuticals, dyes, and pesticide-polluted effluents.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
M. M. M. Ahmed, Kai-Yue Chen, Fang-Yu Tsao, Yi-Cheng Hsieh, Yu-Ting Liu, Min Tzou
Summary: This study investigated the sorption of citric acid onto humic acid-iron hydr(o)xide coprecipitate (HAFHCP) and the reciprocal effects of citric acid and P sorption on HAFHCP. The results showed that citric acid could increase P availability and have an impact on P sorption.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Xibo Xu, Zeqiang Wang, Xiaoning Song, Wenjie Zhan, Shuting Yang
Summary: The selection of predictor variables is crucial in building a digital mapping model for potentially toxic elements (PTEs) in soil. Traditionally, spatial and spectral parameters have been used as predictor variables, but the temporal dimension is often overlooked. This study demonstrates the value of incorporating temporal indices in the model, leading to significant performance improvements. The temporal-spatial-spectral covariate combinations used in a random forest (RF) algorithm achieve satisfactory mapping accuracy and outperform other methods.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Yan Pei, Xun Liu, Mengbo Cao, Zijun Wang, Hongbing Yang
Summary: Heteroatom doping can reconfigure the electronic structure of heterogeneous catalysts, leading to the development of advanced oxidation water purification materials with superior performance and stability. In this study, a series of catalysts with different elemental doping were prepared using a simple and environmentally friendly method. The S-doped NiCo2O4 catalyst showed excellent catalytic performance for the removal of Tetracycline, with significantly increased kinetic constant and high oxidation and mineralization efficiency in a wide pH range. The degradation process was dominated by non-radical oxidation pathway after S doping, and the overall process moved towards low toxicity.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Srivalli Thimmarayan, Harshavardhan Mohan, Gaddapara Manasa, Karthi Natesan, Shanmugam Mahendran, Pavithra Muthukumar Sathya, Byung-Taek Oh, R. Ravi Kumar, Rangasamy Sigamani Gandhimathi, Arul Jayaprakash, Kamala-Kannan Seralathan
Summary: This study investigated the bacterial degradation of naphthalene (NPT) isolated from crude oil-contaminated soil. Bacillus sp. GN 3.4, a potential bacteria for NPT biodegradation, was isolated and the optimal conditions for NPT degradation were determined. The study suggests that Bacillus sp. GN 3.4 could potentially aid in bioremediation by eliminating NPT from the soil.
ENVIRONMENTAL RESEARCH
(2024)