Article
Engineering, Environmental
Sankha Karmakar, Debashis Roy, Sirshendu De
Summary: This study prepared a porous chromium terephthalate metal-organic framework (MOF) impregnated polyacrylonitrile based hollow fiber membrane, and investigated its characteristics and adsorption capacity. Experimental results showed that the addition of MOF significantly affected the permeability and contact angle of the fibers, as well as exhibited high adsorption capacity towards reactive dyes in the fibers.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Hemant Mittal, Ali Al Alili, Pranay P. Morajkar, Saeed M. Alhassan
Summary: The synthesized GO/PEI-NCH hydrogel demonstrated high adsorption capacity for Cr(VI) contaminated water, good stability, and reusability through multiple adsorption-desorption cycles, making it a promising candidate for wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Applied
Mojtaba Safaviyan, Mehdi Faramarzi, Seyed Aboutaleb Mousavi Parsa, Hajir Karimi
Summary: In this study, a novel Cr(VI) adsorbent, TEPA-enriched MGO, was developed and characterized. The optimal parameters for Cr(VI) sorption, including Cr(VI)/MGOT ratio, temperature, and pH, were determined through Box-Behnken Design. The maximum adsorption capacity was found to be 287.15 mg/g. The Lagergren kinetic and Langmuir isotherm models accurately represented the adsorption process on MGOT. Based on the obtained results, MGOT was identified as an excellent reusable adsorbent for selective Cr(VI) sorption and magnetic separation from wastewater.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Engineering, Environmental
Francisco de Borja Ojembarrena, Elena Fuente, Angeles Blanco, Carlos Negro
Summary: Accumulation of Cr(VI) in industrial fiber cement process water can affect product quality and health, and it needs to be removed to avoid environmental risks. The study found that cationic cellulose nanocrystals (CCNCs) have higher adsorption efficiency and lower cost compared to conventional adsorbents.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Chemical
Dahee Kim, Da-Seul Lim, Hye-Jin Lee, In-Chul Kim, Young -Nam Kwon, Suwan Myung
Summary: In this study, a mixed-matrix membrane (MMM) composed of a polymer matrix and adsorbent was developed for efficient removal of heavy-metal ions from wastewater. The MMM showed high adsorption capacity, excellent desorption efficiency, and good reusability, making it a promising solution for wastewater treatment.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Taiba Naseem, Fozia Bibi, Saira Arif, Muhammad Waseem, Sirajul Haq, Mohamad Nor Azra, Taavi Liblik, Ivar Zekker
Summary: The study utilized rGO-ZnO for removing Cr (VI) from aqueous medium, which was found to be more economical and promising than GO. The adsorption kinetics followed the pseudo-first-order model, while the equilibrium study showed that the non-linear Langmuir model was a better fit. The calculated maximum adsorption capacities for GO and rGO-ZnO nanocomposite were 19.49 mg/g and 25.45 mg/g, respectively, with endothermic and spontaneous nature of adsorption detected.
Article
Engineering, Chemical
Dibya Ranjan Rout, Hara Mohan Jena
Summary: In this study, a novel adsorbent was synthesized by decorating zinc oxide particles on reduced graphene oxide, which showed high adsorption capacity and kinetics for hexavalent chromium removal in wastewater treatment. The reusable nature of this composite material indicates its innovative and excellent performance.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Engineering, Environmental
Jun Shang, Yanni Guo, Deliang He, Wei Qu, Yining Tang, Lei Zhou, Rilong Zhu
Summary: The novel graphene oxide-dicationic ionic liquid composite (GO-DIL) showed good adsorption performance for Cr(VI), with a high maximum adsorption capacity and maintained high adsorption capacity even after multiple cycles. The adsorption process fit well with pseudo-first-order kinetic model and Langmuir model, indicating that adsorption is a spontaneous endothermic process.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Xiuxiu Zhang, Guiyun Yi, Zhengting Zhang, Jia Yu, Haiyang Fan, Peng Li, Huihui Zeng, Baolin Xing, Lunjian Chen, Chuanxiang Zhang
Summary: Magnetic graphene-based composites show high adsorption efficiency and excellent recycling and regeneration properties for removing Cr(VI) ions, with a maximum removal efficiency of 99.9% and a high adsorption rate of 98.13% after 10 cycles. These composites have the potential to be effective adsorbents for heavy metal ion removal in environmental protection and restoration.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Environmental
Yiran Sun, Fei Yu, Liqing Li, Jie Ma
Summary: The study introduces a flexible one-pot approach to synthesize amino-functional graphene sponge adsorbents for eliminating Hexavalent Chromium in aqueous environment, which showed outstanding adsorption capacity and reduction efficiency. The novel adsorbents have great potential in treating chromium containing wastewater.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Bo Gao, Fei Wei, Hongwei Yang, Ji Li
Summary: A reinforced composite aerogel absorbent was synthesized using a green chemistry method and environmentally friendly freeze-drying technique. The absorbent showed excellent capability to remove Cr (VI) ions and demonstrated good regeneration ability.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Junjie Geng, Qianwei Liang, Wenyi Yu, Wei Chen, Guining Lu, Hanjin Luo
Summary: This study reports the use of nitrogen-enriched lignosulfonate exfoliated graphene oxide (NLEGO) as an efficient adsorbent for the removal of hexavalent chromium (Cr(VI)) from aqueous solution. The experimental results show that NLEGO has a strong adsorption capacity for Cr(VI) and can meet the industrial wastewater discharge standards. Density functional theory (DFT) simulations suggest that the adsorption mechanism of Cr(VI) on NLEGO involves electrostatic attraction, reduction, and surface chelation.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Simranjeet Singh, Amith G. Anil, Sutripto Khasnabis, Vijay Kumar, Bidisha Nath, Varun Adiga, T. S. Sunil Kumar Naik, S. Subramanian, Vineet Kumar, Joginder Singh, Praveen C. Ramamurthy
Summary: In this study, ZnO-GO nanohybrid was synthesized through a solvothermal process for the removal of hexavalent chromium from aqueous solutions. The nanocomposite showed excellent adsorption capacity for Cr(VI) at near-neutral pH levels, following Langmuir isotherm and pseudo 2nd order kinetics model.
ENVIRONMENTAL RESEARCH
(2022)
Article
Electrochemistry
Long Chen, Yubo Liu, Shaohui Zhang
Summary: Electrochemical reduction using a stainless steel (SS) electrode modified with graphene is used for efficient removal of Cr(VI) in wastewater.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Paper & Wood
Zhaoxing Hu, Jinyan Yang, Mengxin Liu, Wenhui Rao, Yijun Xie, Chuanbai Yu
Summary: A porous hollow bead (CS-Fe@PEI) was developed using cellulose nanofibers (CNFs), sodium alginate (SA), and amino-rich polyethyleneimine through a crosslinking process. The bead showed a high adsorption capacity for heavy metal ions and could be regenerated for multiple cycles.
Article
Polymer Science
Raka Mukherjee, Sirshendu De
POLYMERS FOR ADVANCED TECHNOLOGIES
(2016)
Article
Engineering, Environmental
Raka Mukherjee, Sirshendu De
CHEMICAL ENGINEERING JOURNAL
(2016)
Article
Engineering, Environmental
Raka Mukherjee, Prasenjit Bhunia, Sirshendu De
CHEMICAL ENGINEERING JOURNAL
(2016)
Article
Engineering, Chemical
Raka Mukherjee, Sirshendu De
SEPARATION AND PURIFICATION TECHNOLOGY
(2016)
Article
Environmental Sciences
Sourav Mondal, Anirban Roy, Raka Mukherjee, Mrinmoy Mondal, Sankha Karmakar, Somak Chatterjee, Munmun Mukherjee, Saikat Bhattacharjee, Sirshendu De
SCIENCE OF THE TOTAL ENVIRONMENT
(2017)
Article
Engineering, Chemical
Sourav Mondal, Raka Mukherjee, Sirshendu De
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2015)
Article
Green & Sustainable Science & Technology
Raka Mukherjee, Prasenjit Bhunia, Sirshendu De
JOURNAL OF CLEANER PRODUCTION
(2019)
Article
Engineering, Civil
Raka Mondal, Graham Benham, Sourav Mondal, Paul Christodoulides, Natasa Neokleous, Katerina Kaouri
JOURNAL OF HYDROLOGY
(2019)
Article
Engineering, Environmental
Mrinmoy Mondal, Raka Mukherjee, Apurva Sinha, Supriya Sarkar, Sirshendu De
JOURNAL OF WATER PROCESS ENGINEERING
(2019)
Article
Engineering, Chemical
Raka Mondal, Sourav Mondal, Krishnasri Kurada, Saikat Bhattacharjee, Sourav Sengupta, Mrinmoy Mondal, Sankha Karmakar, Sirshendu De, Ian M. Griffiths
CHEMICAL ENGINEERING SCIENCE
(2019)
Article
Biotechnology & Applied Microbiology
Raka Mondal, Sirshendu De
Summary: The zinc oxide nanoparticle incorporated hollow fiber mixed matrix membranes showed improved membrane characteristics and high adsorption capacity for copper(II) removal. Optimum separation performance was achieved with specific operating conditions, resulting in rejection of around 92% of copper(II) with successful in-situ chemical regeneration. The developed membrane demonstrates good potential for copper(II) removal from aqueous solution.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Engineering, Multidisciplinary
Raka Mondal
Summary: The study focuses on the application of the rotating annular photo-reactor (RAPR) in wastewater treatment. By using a theoretical model and numerical analysis, the research investigates the optimal performance of RAPR, with a particular emphasis on the ratio between adsorption and reaction rate, as well as the sizing of the annular space.
RESULTS IN ENGINEERING
(2022)
Review
Engineering, Environmental
Rahul Binjhade, Raka Mondal, Sourav Mondal
Summary: Photocatalysis is considered a promising advanced oxidation technology with wide applications in wastewater treatment. Continuous flow photocatalytic reactors offer scalability, efficiency, and continuous reaction monitoring, but also face challenges in design related to containment type, catalyst, geometry, and light source.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Raka Mukherjee, Mrinmoy Mondal, Apurva Sinha, Supriya Sarkar, Sirshendu De
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2016)
Article
Engineering, Chemical
Jiawei Hou, Shixuan Guo, Nigel Graham, Wenzheng Yu, Kening Sun, Ting Liu
Summary: A novel 2D composite membrane based on r-HGO and MXene materials was developed, demonstrating exceptional performance for water treatment in terms of permeability, pollutant rejection, and physical stability. The optimization of preparation conditions and material proportions can result in high water flux and efficient removal of pollutants.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Retraction
Engineering, Chemical
Chang Liu, Jinghong Liu, Liang Zhu, Shanfu Tang, Huixin Xiong
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Rui Gao, Caihong Liu, Andreia F. Faria, Qiang He, Chun Yang, Jun Ma
Summary: A novel copolymer architecture has been developed to address biofouling concerns in thin-film composite (TFC) membranes by integrating anti-fouling, bactericidal, and fouling-release functions. The multifunctional membrane demonstrates promising anti-adhesive properties, self-cleaning ability, and high flux recovery rate.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alexander T. Bridge, Noah P. Wamble, Matthew S. Santoso, Joan F. Brennecke, Benny D. Freeman
Summary: This study demonstrates the reproducible preparation of high-flux defect-free asymmetric gas separation membranes using Cyrene(TM) as a majority dope formulation component. By adjusting the volume ratios of Cyrene(TM) and THF, as well as the concentrations of Matrimid(R) and the dry step time, optimal membrane performance is achieved.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alessandra Imbrogno, Han Ya Lin, Babak Minofar, Andrea Iris Schaefer
Summary: In this study, a composite nanofiber membrane containing cross-linked beta-cyclodextrin-epichlorohydrin was prepared and evaluated for the removal of steroid hormones. The results showed that the membrane had high adsorption capacity and the ability to form a specific inclusion complex interaction with the hormones, indicating its potential application in hormone removal.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Bora Shin, Jaewon Shin, Yanuar Chandra Wirasembada, Ki Young Park, Jinwoo Cho
Summary: This study develops a mathematical model to estimate the initial flux of volatile fatty acids in the direct contact membrane distillation process. It identifies the parameters affecting the flux and their relationship with pH.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi-Jui Yeh, Jr Rong Liou, Wei Lin, Kuo-Lun Tung, Wei-Hung Chiang
Summary: This study demonstrates an effective plasma engineering method to create nitrogen-doped graphene quantum dot (NGQD)-inorganic nanocomposites for tunable molecular separation. The composite materials show high separation efficiency and controllable nanopore structures, making them potentially valuable for various applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Horacio Lopez-Marques, Kristofer L. Gleason, Manuel Aguilar-Vega, Rita Sulub-Sulub, J. Ehren Eichler, Hyeonji Oh, C. Buddie Mullins, Benny D. Freeman, Manish Kumar
Summary: In this study, water transport properties in Carbon Molecular Sieve (CMS) membranes were investigated. It was found that membranes synthesized at different pyrolysis temperatures exhibited varying water permeabilities. Compared to other polymeric materials, CMS membranes showed high water permeability, indicating potential for dehydration applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Dmitry A. Alentiev, Roman Yu. Nikiforov, Marina A. Rudakova, Danil P. Zarezin, Maxim A. Topchiy, Andrey F. Asachenko, Nikolay A. Belov, Maxim Bermeshev
Summary: A series of new norbornene-type monomers containing linear and branched substituents were synthesized, and robust thin membranes were prepared by vinyl-addition polymerization. Gas separation performance for the synthesized polymers was evaluated, and the structure of substituent side chains was found to significantly affect gas permeability and CO2 facilitated transport.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lei Yan, Qi Zhang, Ze Zhang, Gui-Jie Li, Yi Jin, Xin-Lin Zhang, Yan-Yun Sun
Summary: In this study, a continuous, stable and fast ion transport channel was established through in-situ guided cross-linking of zinc alginate hydrogels on a porous membrane, overcoming the negative pore effect and effectively inhibiting the dendrite growth of zinc anodes and interfacial side reactions.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yuqing Zhang, Ailing Zhang, Huiyang He, Yuting Fan, Yongjiang Li, Song Wang, Sanxi Li
Summary: The Langmuir-Blodgett self-assembly process is used to create an ordered SPEEK membrane, which enhances the proton conductivity by three times compared to conventional solution casting method.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Hasan Ismaeel, David Gibson, Eleonora Ricci, Maria Grazia De Angelis
Summary: In this study, a machine learning-based group contribution method (ML-GC) was developed to predict pure polymer parameters and successfully applied to predict gas solubility and gas solubility isotherms in glassy polymeric membranes. The model showed satisfactory performance on a small dataset, but has the potential to provide more accurate predictions for a wider range of polymers as more data becomes available.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi Ji, Yu Sun, Huilin Li, Qiang Fu, Yan Zhang
Summary: Previous studies have shown that vibration- or rotation-based techniques can effectively mitigate fouling during membrane filtration. However, it is difficult to incorporate these techniques with spiral wound modules (SWMs) widely used in water and wastewater treatment. This study developed a prototype membrane system to accommodate angular vibrations with a modified SWM, and experimental results showed that applying angular vibrations can effectively control algal fouling in an SWM with lower energy consumption compared to traditional methods.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lakshmeesha Upadhayaya, Abaynesh Yihdego Gebreyohannes, Muhammad Wakil Shahzad, Usman T. Syed, Sandra L. Aristizabal, Radoslaw Gorecki, Suzana P. Nunes
Summary: Increasing temperatures worldwide pose a significant health risk, exacerbated by high humidity. Conventional air conditioners contribute heavily to carbon dioxide emissions, with dehumidification being a major factor. Membrane-based dehumidification system offers energy efficiency and non-toxic water vapor removal. This study demonstrates a membrane dehumidification system with polymeric hollow fibers coated with a green polyphenol coating, showing remarkable water vapor transport rate and selectivity. Long-term testing reveals minimal decline in vapor transport and a 4-5 times higher coefficient of performance (COP) compared to conventional dehumidifiers, making it a highly competitive, energy-saving device with reduced emissions and a smaller footprint.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Zhengzhong Zhou, Xue Zhu, Yi Yuan, Shaoqiang Wang, Xiaoshan Meng, Taoli Huhe, Qian Wang
Summary: In this study, lignin, a biomass material, was chemically modified and utilized in the interfacial polymerization process to improve the performance of nanofiltration membranes. The modified membranes showed enhanced hydrophilicity and anti-fouling properties, and the optimization of membrane pore size increased permeability. The study also demonstrated the potential application of the membranes in biogas slurry valorization.
JOURNAL OF MEMBRANE SCIENCE
(2024)