Article
Materials Science, Ceramics
Shreya Singh, Rahul Garg, Atanu Jana, Chinna Bathula, Soniya Naik, Mona Mittal
Summary: Clean water is essential for all living beings, but pollution caused by rapid industrialization, population growth, urbanization, global warming, extensive agriculture, and climate change has made access to clean water difficult. Wastewater treatment has become a top priority for every country due to the number of deaths caused by diseases related to waste or polluted water. Nanotechnology provides potential solutions for improving water purification and disinfection, with metal oxide nanoparticles offering unique properties and applications in removing pollutants from wastewater.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Analytical
Shiwei Yan, Wei Yu, Ting Yang, Qi Li, Jiahua Guo
Summary: In this study, the characteristics of corn stalk biochar and its adsorption mechanisms for two heavy metals, Pb and Cd, were investigated. The results showed that the corn stalk biochar exhibited a porous structure and contained functional groups such as phenol and carboxyl groups, which played important roles in adsorption. The adsorption capacity was influenced by factors such as pH, temperature, and ionic strength. The kinetic experiments indicated that the adsorption processes could be described by the pseudo-first order model, and the adsorption isotherm could be fitted well by the Langmuir model. Overall, this study provides insights into the potential application of corn stalk biochar for metal pollution treatment in wastewater.
Article
Engineering, Environmental
Lang Gong, Hongye Wu, Xiangyi Shan, Zhili Li
Summary: The development of low-cost, high-efficiency, and environmentally friendly adsorbents for the removal of antibiotics and heavy metal ions in water is urgently needed. Phosphorylated alkali lignin (PAL) microparticles were successfully fabricated via a simple one-pot method, showing great potential in adsorption of pollutants such as levofloxacin hydrochloride (LH) and lead ions (Pb(II)). The results demonstrated that PAL had a strong ability to remove complex pollutants, with high adsorption capacity and removal percentage for various contaminants in water.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Agricultural Engineering
Xirui Kang, Na Geng, Yaping Li, Xu Li, Jinpeng Yu, Shuo Gao, Hui Wang, Hong Pan, Quangang Yang, Yuping Zhuge, Yanhong Lou
Summary: Cd and Zn contamination in water is a common issue that poses a threat to water supply, human health, and food production. MnFeB, a modified absorbent biochar, exhibits enhanced adsorption capacity for Cd2+ and Zn2+ ions, making it a promising material for the treatment of Cd and Zn-polluted water.
BIORESOURCE TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Nidhi Puri, Anjali Gupta, Anuradha Mishra
Summary: In the past few decades, significant advancements have been made in water purification methods, with the use of nanoscale materials being a key development. Nanotechnology provides a new approach to addressing pollution issues. Further research and exploration of nanotechnology applications in water purification are still needed for the future.
JOURNAL OF CLEANER PRODUCTION
(2021)
Review
Environmental Sciences
Lata Rani, Arun Lal Srivastav, Jyotsna Kaushal, Xuan Cuong Nguyen
Summary: This review provides a comprehensive discussion on the synthesis, characterization, and mechanisms involved in the removal of Hg(II) from aqueous solutions using nanomaterials. Nanomaterials have gained attention due to their high porosity, better surface properties, and high efficiency.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Chemistry, Physical
Asiata Omotayo Ibrahim, Kayode Adesina Adegoke, Rhoda Oyeladun Adegoke, Yahaya A. AbdulWahab, Victoria B. Oyelami, Morenike Oluwabunmi Adesina
Summary: This review discusses the applications of metal-organic frameworks (MOFs) as novel carbonaceous nanomaterials for removing pollutants from various environments, highlighting promising MOF adsorbents and emphasizing the importance of their reusability as well as addressing challenges and prospects.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Agronomy
Wantong Jiang, Lingxin Xu, Yule Liu, Wenxin Su, Junxin Yan, Dawei Xu
Summary: The study demonstrates that biochar can effectively alleviate the damage caused by cadmium to mint plants, improving plant growth and photosynthetic efficiency, and reducing antioxidant enzyme activity. Application of biochar also reduces cadmium uptake by plants, and decreases the migration and transformation capacity of cadmium in the soil.
Review
Chemistry, Inorganic & Nuclear
Guo-Rong Xu, Zi-Han An, Ke Xu, Qian Liu, Rasel Das, He-Li Zhao
Summary: The rapid industrial and agricultural expansion has led to severe heavy metal ion pollution, prompting the urgent need for removal. Advanced materials, such as metal-organic frameworks (MOFs), are being synthesized to overcome challenges in water purification. MOFs show great potential in adsorption due to their highly porous structure and large surface area.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Microbiology
Jingyi Dai, Chaoyang Li, Yu Sun, Yunlin Zhao, Huimin Huang, Yingzi Ma, Zhenggang Xu
Summary: Heavy metal pollution is a global issue affecting the environment and human health. Microorganisms, such as the strain Penicillium amphipolaria XK11 studied in this research, play a crucial role in remediation. XK11 demonstrated high resistance to antimony and cadmium, with a potential for biomaterial or remediation applications.
ARCHIVES OF MICROBIOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Simranjeet Singh, Dhriti Kapoor, Sutripto Khasnabis, Joginder Singh, Praveen C. Ramamurthy
Summary: Nanomaterials have been developed for the removal of heavy metals in wastewater, including zero-valent, carbon-based, and nanocomposite materials. Various synthesis methods are used, and removal mechanisms involve chemical precipitation, adsorption, ion exchange, among others. Factors like pH, temperature, contact period, and dosage play crucial roles in controlling the adsorption processes.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Analytical
Pawan Pathak, Jae-Hoon Hwang, Rachel H. T. Li, Kelsey L. Rodriguez, Matthew M. Rex, Woo Hyoung Lee, Hyoung J. Cho
Summary: A novel copper-chitosan nanocomposite-based flexible electrochemical sensor with integrated Ag/AgCl reference electrode was developed. The sensor showed enhanced sensitivity and mechanical flexibility, with a detection limit of 0.72 ppb for lead ions in tap water. The XPS analysis confirmed the formation of functional layers on the working and reference electrodes.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Environmental Sciences
Carla Calixta Calva Jimenez, Liliana Valentina Pinedo Fernandez, Cristiano E. Rodrigues Reis
Summary: This study evaluated the effect of amendments on cocoa seedlings and found that the application of lime and charcoal can reduce the migration of cadmium towards the seedlings, and the combination of lime and charcoal can prevent the presence of cadmium in the seedlings.
Article
Chemistry, Multidisciplinary
Rabia Baby, Mohd Zobir Hussein, Zulkarnain Zainal, Abdul Halim Abdullah
Summary: Functionalized activated carbon (FAC) was prepared by introducing nitro groups onto activated carbon for the treatment of heavy metal-contaminated water. FAC showed maximum adsorption capacity for heavy metal ions like Cr6+, Pb2+, Zn2+, and Cd2+ under optimized adsorption parameters, following a pseudo-second-order kinetic model. Adsorption isotherm models like Freundlich and Langmuir were used to determine the best fitting models for each metal ion.
Article
Chemistry, Applied
O. Dudarko, N. Kobylinska, B. Mishra, V. G. Kessler, Bijay P. Tripathi, G. A. Seisenbaeva
Summary: A series of SBA-15 type adsorbents with different ligands were synthesized and characterized, showing significantly higher adsorption capacities for target ions than neat SBA-15. The adsorption mechanisms were based on complexation and electrostatic interactions between metal ions and various functional groups, highlighting the potential selective removal of REEs and heavy metal ions from complex water samples and technological mixtures using functionalized mesoporous silicas.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Environmental
Shikha Jain, Neeraj Dilbaghi, Nitin Kumar Singhal, Ajeet Kaushik, Ki-Hyun Kim, Sandeep Kumar
Summary: Accumulation of heavy metal ions in the ecosystem is a major concern for their negative effects on animals, humans, and aquatic habitats. A rapid and portable sensing system is crucial for detecting and managing such pollutants. A fluorescence-based biosensor has been developed for the selective and sensitive detection of Pb2+ ions using a DNAzyme system that responds only to the presence of lead (II) ions (Pb2+). This novel biosensing approach offers insights into the rapid and sensitive detection of major pollutants for food and environmental safety.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Shikha Bhogal, Irshad Mohiuddin, Ki-Hyun Kim, Ashok Kumar Malik, Kuldeep Kaur
Summary: A highly effective method using restricted access medium magnetic molecularly imprinted polymer (RAM-MMIP) for selective identification and isolation of phthalates (PTHs) has been established. The RAM-MMIP was synthesized using Fe3O4@SiO2 as support material, diethyl phthalate and dicyclohexyl phthalate as dual dummy templates, and (3-glycidyloxypropyl)trimethoxysilane as the silane coupling agent. The RAM-MMIP showed selectivity for PTHs and recyclability for multiple cycles, with successful application for extraction of PTHs from plastic packaged foods.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Dae-Hwan Lim, Younes Ahmadi, Young-Hyun Kim, Ki-Hyun Kim
Summary: Flavored capsule heat-not-burn (FC-HNB) tobacco products, including IQOS, Lil, and Glo, have been introduced as a new generation of cigarettes. These products release various volatile organic compounds (VOCs), and it is crucial to assess the potential harm associated with their use. The study evaluated the VOC composition in HNB cigarette vapor and found that breaking the capsules increased VOC concentrations significantly. Certain key VOC components, such as ethyl butyrate, isoamyl acetate, and limonene, were identified after breaking the flavored capsules. The research highlights the harmful effects of direct and indirect exposure to VOCs in FC-HNB products.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Manpreet Kaur, Mohamad Yusuf, Yiu Fai Tsang, Ki-Hyun Kim, Ashok Kumar Malik
Summary: CdMOF and ZnMOF-NH2, metal-organic frameworks functionalized with amine/hydrazone ligands, were synthesized using a conventional reflux method. These MOFs exhibited good crystallinity and thermal stability. They were found to be efficient in the fast sensing of 2,4,6-trinitrophenol (TNP) in water with high sensitivity and selectivity, with limits of detection of 7 ppb and 10 ppb, respectively. The sensing mechanism was assessed using density functional theory calculations and spectral overlap analysis.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Chemistry, Applied
Vikas Chaudhary, Praveen Lakhera, Ki-Hyun Kim, Akash Deep, Parveen Kumar
Summary: The extensive use of lithium-ion batteries has led to a large amount of waste. These wastes can be a source of valuable metals such as lithium, cobalt, manganese, and nickel. Recycling these batteries can help reduce the cost of production and minimize environmental impacts.
SEPARATION AND PURIFICATION REVIEWS
(2023)
Article
Engineering, Chemical
Xinzhi Wang, Deepak Kukkar, Sherif A. Younis, Kumar Vikrant, Younes Ahmadi, Danil Boukhvalov, Ki-Hyun Kim
Summary: Adsorbents with high surface area and diverse functional groups can effectively remove volatile organic compounds (VOCs) with different polarities. A metal-organic framework-199 (MOF-199)/powdered activated carbon (PAC) composite (MOF-199@PAC) was prepared and used to treat multiple VOC system containing both non-polar (benzene) and polar VOCs (methyl ethyl ketone). The composite showed efficient adsorption of polar and non-polar VOCs on its surface due to the presence of abundant pi-pi conjugated sites and polar groups, respectively.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Virat Khanna, Vanish Kumar, Suneev Anil Bansal, Chander Prakash, Mohd Ubaidullah, Shoyebmohamad F. Shaikh, Alokesh Pramanik, Animesh Basak, S. Shankar
Summary: This study aimed to develop an Al-GNP composite to improve its mechanical properties. A series of Al-GNP composites were fabricated by varying the levels of GNPs, and the best enhancement in mechanical properties was achieved with 0.5 wt% GNP doping.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Review
Green & Sustainable Science & Technology
Yahui Cai, Jianfei Wu, Sheldon Q. Shi, Jianzhang Li, Ki-Hyun Kim
Summary: The potential of seawater desalination technologies in addressing the freshwater shortage has been recognized. This paper provides a review of desalination technologies, including their working principles, environmental risks, merits, and economic benefits. Strategies to overcome the limitations of current solar desalination technologies are proposed, and future research directions are discussed. This paper is expected to serve as a valuable reference for freshwater production based on desalination techniques.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
Thi Yen Tran, Swati Verma, Sherif A. Younis, Ki-Hyun Kim
Summary: The potential application of ZnTON as an adsorbent for gaseous formaldehyde was investigated. ZnTON exhibited higher adsorption capacity than commercial P25-TiO2 and activated carbon. The adsorption capacity of ZnTON increased with higher initial feeding concentration of formaldehyde but decreased with rising temperature and moisture levels. The adsorption of formaldehyde onto ZnTON followed Langmuir isotherm and pseudo-second-order kinetic models. This study provides valuable insights for the synthesis of advanced adsorbents for the removal of volatile organic compounds.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Correction
Chemistry, Physical
Priyanshu Goel, Shashank Sundriyal, Vishal Shrivastav, Sunita Mishra, Deepak P. Dubal, Ki-Hyun Kim, Akash Deep
Review
Chemistry, Multidisciplinary
Yongbiao Hua, Younes Ahmadi, Ki-Hyun Kim
Summary: This comprehensive review summarizes the recent progress in transition metal oxide (TMO)-based thermocatalysts for the removal of formaldehyde (FA). The key factors affecting the catalytic activity of TMO-based thermocatalysts towards FA are discussed, including exposed crystal facets, alkali metal/nitrogen modification, type of precursors, and alkali/acid treatment. The performance of TMO-based composite catalysts is found to be superior to mono- and bi-metallic TMO catalysts, owing to their abundant surface oxygen vacancies and enhanced FA adsorptivity. The challenges and future prospects for TMO-based catalysts in the catalytic oxidation of FA are also discussed.
Article
Chemistry, Multidisciplinary
Swati Verma, Kumar Vikrant, Ki-Hyun Kim
Summary: In this research, a copper-impregnated titanium dioxide (Cu@TiO2) photocatalyst was prepared and used for the degradation of multicomponent gaseous systems. The photocatalytic efficiency of Cu@TiO2 was influenced by the pretreatment conditions, such as nitrogen + hydrogen or nitrogen only, and various process variables. Cu@TiO2 showed better performance in removing aliphatic VOCs compared to aromatic VOCs.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Chemistry, Physical
Shaoqing Sun, Kumar Vikrant, Swati Verma, Danil W. Boukhvalov, Ki-Hyun Kim
Summary: Developing high-performance air purifiers for removing carcinogenic volatile organic compounds, such as formaldehyde, from indoor air is of great practical interest. A portable air purifier system was designed using honeycomb ceramic filters loaded with diaminopropane-appended activated carbon. The system showed high removal efficiencies against formaldehyde, with the best performance achieved using 30% DAP/AC. However, the removal efficiency decreased with an increase in relative humidity. The clean air delivery rate of the system reached a high value, and isotherm analysis demonstrated the complex adsorption behavior of formaldehyde. The superior adsorption properties of DAP/AC can be attributed to both covalent and non-covalent interactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiapeng Wang, Kumar Vikrant, Ki-Hyun Kim
Summary: In this study, a high surface area nanocomposite MnO2@U6N was prepared and used as a bifunctional adsorbent-catalyst for the purification of multiple aromatic volatile organic compounds. The MnO2@U6N showed superior catalytic-adsorption activity for the removal of BTXS, and its removal potential was validated through experiments and simulations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Review
Environmental Sciences
Kumar Vikrant, Ki-Hyun Kim
Summary: Furfural, derived from lignocellulosic biomass, is a versatile building block for sustainable applications. Gas-phase FF hydrogenation offers economic and environmental advantages over liquid-phase, and noble and non-noble metal catalyst systems are recognized as effective in this process. This review summarizes current research and factors affecting catalytic performance, and discusses future development.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
