Article
Engineering, Environmental
Michael Schaefer, Macon J. Abernathy, Dominique Nguyen, Thida Cornell, Samantha C. Ying
Summary: "Ceramic water filters produced by firing clay at high temperatures can lead to increased leaching of arsenic. Analysis showed that arsenic solubility increased and iron solubility decreased after firing, indicating potential risks for arsenic exposure in ceramic water filter production."
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Victor R. Moreira, Flavia C. R. Costa, Priscila B. Moser, Roberta N. Guimara, Lucilaine V. S. Santos, Eduardo C. de Paula, Miriam C. S. Amaral
Summary: This paper discusses the use of ultrafiltration membranes aided by in-line coagulation with FeCl3 to improve the resilience of drinking water treatment plants. The results show that the flux decay is lower and the particle size increases when coagulant is considered. The concentrate recirculation does not affect the overall performance of the water treatment plant.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Chennu Sudhakar, Sritama Mukherjee, Avula Anil Kumar, Ganesan Paramasivam, P. Karthigai Meena, Nonappa, Thalappil Pradeep
Summary: This study focused on the interaction between phosphate and iron oxides/oxy-hydroxides, exploring the interference of P(V) in the adsorption of As(III/V). Results showed that CM2LF performed better than MAG for As(III/V) uptake in the presence of P(V), and a model for the adsorption of P(V) species on ferrihydrite particles in water was developed using DFT, contributing to the development of sustainable solutions for arsenic remediation. Various aspects of sustainability were discussed in the study.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Engineering, Chemical
Case M. van Genuchten
Summary: The coprecipitation of magnetite with arsenic is a potential remediation technique for As-contaminated groundwater. However, the knowledge about the fate of coprecipitated arsenic during aging is lacking. This study used synchrotron-based X-ray absorption spectroscopy to track the transformation of magnetite and the speciation of coprecipitated arsenic for up to a year. The results demonstrate the unique potential of magnetite for long-term arsenic sequestration.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Multidisciplinary Sciences
Erin A. Hull, Rebekah R. Stiling, Marco Barajas, Rebecca B. Neumann, Julian D. Olden, James E. Gawel
Summary: Lake sediments in urban lakes of the Puget Sound lowlands store high levels of metal contaminants, especially arsenic. Shallow lakes have higher concentrations of arsenic compared to deeper lakes due to factors such as sediment oxygen demand and mixing. Periphyton and snails have higher levels of arsenic compared to other primary producers and zooplankton. Littoral sediment plays a significant role in arsenic trophic transfer, and there is a consistent relationship between percent inorganic arsenic and trophic level in lakes with different depths and mixing regimes.
Article
Environmental Sciences
Jessica De Loma, Mario Vicente, Noemi Tirado, Franz Ascui, Marie Vahter, Jacques Gardon, Carina M. Schlebusch, Karin Broberg
Summary: This study found positive selection signals near the gene encoding arsenite methyltransferase (AS3MT) in indigenous groups from the Bolivian Andes, indicating adaptation to arsenic. The study also discovered a higher frequency of alleles associated with more efficient arsenic metabolism in these populations.
Article
Engineering, Environmental
Jochen Bundschuh, Nabeel Khan Niazi, Mohammad Ayaz Alam, Michael Berg, Indika Herath, Barbara Tomaszewska, Jyoti Prakash Maity, Yong Sik Ok
Summary: Arsenic contamination is a significant global issue, with exposure through food imports and exports posing potential risks worldwide. Despite not being explicitly recognized as a right in international declarations and goals, addressing arsenic contamination is crucial for achieving human rights, sustainable development goals, and global priorities. Establishing an international platform for sharing knowledge and resources can help mitigate arsenic contamination and contribute to global economic development and human health.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Qin Qin, Hongtao Lu, Zhiliang Zhu, Minghao Sui, Yanling Qiu, Daqiang Yin
Summary: Domestic water purification devices are effective in reducing the risk of arsenic exposure in drinking water, with reverse osmosis and nanofiltration purifiers showing high removal rates for As(V) but lower rates for As(III). The total arsenic concentrations in tap water samples were found to be below the limit values set by Chinese drinking water standards and the World Health Organization.
Article
Chemistry, Multidisciplinary
Marco Sanna Angotzi, Valentina Mameli, Alessandra Fantasia, Claudio Cara, Fausto Secci, Stefano Enzo, Marianna Gerina, Carla Cannas
Summary: This study investigates the removal of As-V and As-III from water using iron oxides/oxyhydroxides, with akaganeite found to be the most effective sorbent in the pH range 2-8. The surface chemistry of the sorbents plays a crucial role in the arsenic uptake, and the ability to modify the starting pH is a key factor in determining the removal performance. The study provides insights into the uptake mechanism and offers a direct comparison among the sorbents.
Article
Environmental Sciences
Anne E. Nigra, Adina Cazacu-De Luca, Ana Navas-Acien
Summary: The study evaluated the association between socioeconomic vulnerability and inorganic arsenic concentrations in community water systems across US counties, finding that the associations were modified by region and rurality. Across the US, individual domains of socioeconomic vulnerability, especially educational attainment, were more strongly associated with inequalities in arsenic concentrations than the overall socioeconomic vulnerability index.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Maya Spaur, Melissa A. Lombard, Joseph D. Ayotte, Benjamin C. Bostick, Steven N. Chillrud, Ana Navas-Acien, Anne E. Nigra
Summary: Based on the National Health and Nutrition Examination Survey (NHANES) data from 2003 to 2014, this study found an association between the levels of arsenic in drinking water from private wells and regulated community water systems (CWSs) and urinary arsenic concentrations. The contribution of these water sources to overall inorganic arsenic exposure is still unclear.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Mrinal Roy, Case M. van Genuchten, Luuk Rietveld, Doris van Halem
Summary: Arsenic is a toxic element found in many groundwater sources around the world. Traditional removal techniques often require chemical treatment, but a novel bio-FeEC system was developed in this study, which effectively removes arsenic without the need for chemicals.
Article
Thermodynamics
Reza Shahraki Shahdabadi, Ali Mortazavi, Pouria Lotfi, Seyyed Ehsan Shakib, Mohammad Mustafa Ghafurian
Summary: This study examined the use of a solar still made of galvanized iron to produce fresh water. Different materials, such as iron ore, granite, and sponge, were used as photo absorbers on the surface of the stairs to enhance the interaction between air and water. The results showed that the mass flow rate of the inlet feed water and the type of material used significantly affected the production of drinking water and the evaporation efficiency.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Environmental Sciences
Maya Spaur, Benjamin C. Bostick, Steven N. Chillrud, Pam Factor-Litvak, Ana Navas-Acien, Anne E. Nigra
Summary: Our objective was to evaluate regional and sociodemographic inequalities in water arsenic exposure reductions associated with the US Environmental Protection Agency's Final Arsenic Rule. We analyzed data from the 2003-2014 National Health and Nutrition Examination Survey and found that reductions in urinary rDMA following the Final Arsenic Rule were highest among participants with the highest CWS arsenic concentrations, supporting legislation can benefit those who need it the most, although additional efforts are still needed to address remaining inequalities in CWS arsenic exposure.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Ana P. Ferragut Cardoso, Mayukh Banerjee, Laila Al-Eryani, Mohammed Sayed, Daniel W. Wilkey, Michael L. Merchant, Juw W. Park, J. Christopher States
Summary: Chronic arsenic exposure is linked to increased cancer risk. This study aimed to profile alternative splicing events in human keratinocytes induced by arsenic. Results suggest arsenic exposure may disrupt an alternative splice factor network and induce genome-wide alternative splicing contributing to arsenic-induced carcinogenesis.
ENVIRONMENTAL HEALTH PERSPECTIVES
(2022)
Article
Multidisciplinary Sciences
Md Rabiul Islam, Soujit Sen Gupta, Sourav Kanti Jana, Thalappil Pradeep
Summary: Capacitive deionization (CDI) is an efficient desalination technology that can remove ionic contaminants and toxic species, including heavy metal ions.
Article
Chemistry, Physical
Wakeel Ahmed Dar, Arijit Jana, Korath Shivan Sugi, Ganesan Paramasivam, Mohammad Bodiuzzaman, Esma Khatun, Anirban Som, Ananthu Mahendranath, Amrita Chakraborty, Thalappil Pradeep
Summary: This article presents a facile synthetic strategy for the fabrication of two- and three-dimensional atomically precise nanocluster-based metal-organic frameworks with good stability. These materials show rich properties and demonstrate high-performance luminescent sensing capabilities for explosive analogues. The study provides insights into surface coordination chemistry controlled by heterocyclic amines for defining the morphology and properties of cluster frameworks.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Madhuri Jash, Arijit Jana, Ajay K. Poonia, Esma Khatun, Papri Chakraborty, Ankit Nagar, Tripti Ahuja, K. V. Adarsh, Thalappil Pradeep
Summary: Superstructures made by assemblies of metal nanoclusters (NCs) with atomic precision and exciting photophysical properties have been synthesized. The synthesis of phosphine-protected alloy NCs of silver with varying gold doping and the superstructures of such systems are reported for the first time. These alloy clusters show aggregation-induced emission (AIE) property and form cluster-assembled spherical hollow superstructures in the presence of water without any template. The assembly of the alloy NCs within the hollow spheres leads to highly efficient emitting states.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Amrita Chakraborty, Megha Maria Stanley, Biswajit Mondal, Nonappa, Mohammad Bodiuzzaman, Papri Chakraborty, M. P. Kannan, Thalappil Pradeep
Summary: Quantized energy levels and unique optoelectronic properties of atomically precise noble metal nanoclusters have made them important in various fields. Recent studies have shown that these nanoclusters can either participate in colloidal assembly or lead to products with atom exchange depending on the reactant. Furthermore, anisotropic plasmonic nanoparticles with sharp edges and protrusions exhibit higher chemical reactivity and can induce site-specific growth of foreign metals and metal oxide shells.
Article
Chemistry, Applied
Priyabrata Roy, Debal Deb, Arunan Suganya, Brindaban Roy, Thalappil Pradeep, Tanima Saha
Summary: This study found that many traditional rice landraces contain significant amounts of various B vitamins, while modern rice varieties have lower B vitamin levels. These vitamin-rich traditional rice landraces, if included in the daily diet, may contribute to the nutritional security of the poor.
Article
Chemistry, Physical
Gaurav Vishwakarma, Bijesh K. Malla, Soham Chowdhury, Sakshi Pradip Khandare, Thalappil Pradeep
Summary: Acetaldehyde in dilute solution can form geminal diol under normal atmospheric conditions. This study discovers the existence of stable acetaldehyde clathrate hydrate (CH) in ultrahigh vacuum at cryogenic temperatures. The formation of CH was confirmed using infrared spectroscopy and mass spectrometry. This finding suggests the possibility of stable CH phase for acetaldehyde in interstellar and cometary environments.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Gaurav Vishwakarma, Bijesh K. Malla, K. S. S. V. Prasad Reddy, Jyotirmoy Ghosh, Soham Chowdhury, Sharma S. R. K. C. Yamijala, Sandeep K. Reddy, Rajnish Kumar, Thalappil Pradeep
Summary: Restricted migration of CO2 from clathrate hydrate cages to amorphous solid water matrix was observed in the presence of tetrahydrofuran (THF) under ultrahigh vacuum and cryogenic conditions. This cage-matrix exchange may create a more conducive environment for chemical transformations in interstellar environments.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Review
Chemistry, Multidisciplinary
Jyotirmoy Ghosh, Gaurav Vishwakarma, Rajnish Kumar, Thalappil Pradeep
Summary: Through multiple studies in a simulated interstellar environment, we have discovered several molecules' clathrate hydrates (CHs). These CHs play an important role in the chemical processes of the interstellar medium, contributing to the chemical evolution and formation of planetary systems as well as the origin of life.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Chemistry, Physical
Gaurav Vishwakarma, Bijesh K. Malla, K. S. S. V. Prasad Reddy, Jyotirmoy Ghosh, Soham Chowdhury, Sharma S. R. K. C. Yamijala, Sandeep K. Reddy, Rajnish Kumar, Thalappil Pradeep
Summary: Restricted migration limits chemical transformations within interstellar and cometary ices. We found that CO2 can migrate from clathrate hydrate cages to amorphous solid water in the presence of tetrahydrofuran under ultrahigh vacuum and cryogenic conditions. This migration may create a more conducive environment for chemical transformations in interstellar environments.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Arijit Jana, B. K. Spoorthi, Akhil S. Nair, Ankit Nagar, Biswarup Pathak, Tomas Base, Thalappil Pradeep
Summary: In this study, a film of a carborane-thiol-protected tetranuclear copper cluster with characteristic orange luminescence was fabricated and utilized using ambient electrospray deposition. The clusters were deposited at an air-water interface to form a film by charged microdroplets produced by an electrospray tip. The porous surface structure of the film was characterized by different microscopic and spectroscopic techniques. Visible and rapid quenching of the emission of the film upon exposure to 2-nitrotoluene vapours under ambient conditions was observed.
Article
Chemistry, Multidisciplinary
Jayoti Roy, Biswajit Mondal, Gaurav Vishwakarma, Nonappa, Nishanthi Vasanthi Sridharan, Pattabiraman Krishnamurthi, Thalappil Pradeep
Summary: Reactions between nanoclusters and metal-oxide nanoparticles have been explored for the first time, resulting in the formation of alloy nanoclusters and self-assembled colloidal superstructures. The study demonstrates the possibility of extending interparticle reactions to a wide range of chemical systems.
Review
Chemistry, Multidisciplinary
Paulami Bose, Krishnadas Kumaranchira Ramankutty, Papri Chakraborty, Esma Khatun, Thalappil Pradeep
Summary: This review provides a comprehensive account of the chemistry, diversity, and kinetics of atomically precise noble metal nanoclusters. These clusters exhibit molecule-like properties and undergo intercluster reactions in solution, leading to the formation of composites and hybrid materials.
Article
Chemistry, Multidisciplinary
Pillalamarri Srikrishnarka, Dhivyaraja Kumaran, Amoghavarsha Ramachandra Kini, Vishal Kumar, Ankit Nagar, Md Rabiul Islam, Ramamurthy Nagarajan, Thalappil Pradeep
Summary: Fouling on glass surfaces reduces solar panel efficiency and increases water consumption for cleaning. Super hydrophobic coatings on glass allow water droplets to carry away dirt particles, enabling self-cleaning. Observing the interaction between charged particles and surfaces provides insights into effective cleaning methods.
Article
Materials Science, Multidisciplinary
Biswajit Mondal, Arijit Jana, Jayoti Roy, Astrid Campos Mata, Akhil S. Nair, Ananthu Mahendranath, Soumyabrata Roy, Biswarup Pathak, Pulickel M. Ajayan, Thalappil Pradeep
Summary: Polyoxometalates (POMs) are a class of metal oxyanion clusters with promising catalytic potential. In this study, the structures of ternary molybdenum oxo-sulfide clusters were successfully determined, showing excellent electrocatalytic activity.
ACS MATERIALS LETTERS
(2023)
Article
Multidisciplinary Sciences
C. Ramprasad, Hari Charan Teja, Vunnam Gowtham, Varadam Vikas
Summary: The key challenges the world is facing currently include environmental pollution, climate change, and energy crisis. Municipal solid waste landfill sites contribute significantly to greenhouse gas emissions, especially methane. There is an increasing awareness of sustainable products and daily consumption, which can help mitigate global warming. This study provides a simple and accurate method to estimate methane emissions and renewable energy potential from landfill sites.
