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
Polymer Science
Xingtong Gao, Kai Liu, Peng Liu, Xiaoyu Bai, Aixiang Li, Zijian Lyu, Qiuhong Li
Summary: In this study, acrylic acid and sodium styrene sulfonate were grafted onto cellulose acetate by free radical polymerization to create a graft copolymer with heparin units. This copolymer was used to coat adsorbent resin for disposable hemoperfusion devices, improving blood compatibility. Tests showed that the modified resin had good adsorption of small and medium-sized molecules, and greatly improved blood compatibility. It also exhibited biocompatibility, no pyrogenic reaction, low cytotoxicity, and no acute systemic toxicity. The resin has potential applications in uremia, hyperbilirubinemia, and rapid treatment of pesticide poisoning.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Nadia Z. Shaban, Marwa Y. Kenawy, Nahla A. Taha, Mona M. Abd El-Latif, Doaa A. Ghareeb
Summary: This study aimed to evaluate the efficacy of novel CA composite nanofibers (CA/HA/BER and CA/HA/ME) for bone scaffolds in bone regeneration process. The results indicated that these composite nanofibers can reduce bone cell death, promote bone regeneration, with CA/HA/BER showing a better treatment effect.
Article
Multidisciplinary Sciences
Hassanien Gomaa, Eman M. Abd El-Monaem, Abdelazeem S. Eltaweil, Ahmed M. Omer
Summary: This study aimed to develop a montmorillonite/magnetic NiFe2O4@amine-functionalized chitosan (MMT-mAmCs) composite as an adsorbent for the removal of cationic dyes from wastewater. The composite material exhibited high negative charges and ferromagnetic behavior, making it suitable for adsorbing the cationic contaminants. It showed promising adsorption capacity for methylene blue and crystal violet, and maintained satisfactory adsorption characteristics even after repeated use. Additionally, the MMT-mAmCs composite efficiently adsorbed dyes from real water samples, indicating its potential as a reusable adsorbent for cationic pollutants in aquatic environments.
SCIENTIFIC REPORTS
(2022)
Article
Polymer Science
Hebat-Allah S. Tohamy, Mohamed El-Sakhawy, Beata Strachota, Adam Strachota, Ewa Pavlova, Silvia Mares Barbosa, Samir Kamel
Summary: In this study, highly swelling, stimuli-responsive hydrogels were prepared using hydroxypropyl methyl cellulose (HPMC) grafted with acrylamide (AM) and 3-sulfopropyl acrylate (SPA). These hydrogels displayed remarkable elasticity, high swelling ratio, and fast swelling kinetics. The gel with AM/SPA ratio of 0.5 exhibited the highest equilibrium swelling ratio, maximum volume response to temperature and pH, and fastest swelling kinetics, but had the lowest modulus. The hydrogels showed efficient removal of Cr(VI) from water, with 90-96% removal in one step.
Article
Polymer Science
Irma Perez-Silva, Gladis D. Canales-Feliciano, Jose A. Rodriguez, Luis H. Mendoza-Huizar, Salvador Perez-Estrada, Israel S. Ibarra, M. Elena Paez-Hernandez
Summary: Cellulose acetate, derived from cellulose, is biodegradable and reusable. Functionalized capsules with Cyanex 923 were able to effectively remove and recover cadmium. Different variables, such as HCl concentration and carrier content, influenced the extraction efficiency of cadmium. The study also tested three isotherm models for modeling the cadmium removal process.
Article
Engineering, Environmental
Peiguo Zhou, Xin Ru, Wenjing Yang, Zongbiao Dai, Meshack Appiah Ofori, Jianqiang Chen, Jiaxin Hou, Zhijun Zhong, Hui Jin
Summary: Carboxymethyl cellulose (CMC) and wood flour cellulose (WFC) graft copolymers were prepared using a gamma-ray co-irradiation graft copolymerization method. CMC showed excellent flocculation effect on kaolin wastewater, with a maximum turbidity removal rate of 86.0%. Among all conditions, WFC had the best grafting effect.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Organic
Rosarita D'Orsi, Viviana Claudia Canale, Rocco Cancelliere, Omar Hassan Omar, Claudia Mazzuca, Laura Micheli, Alessandra Operamolla
Summary: The surface functionalization of cellulose nanocrystals is a useful tool to access biocompatible and biodegradable nanostructures. However, characterizing the chemical appendages introduced onto cellulose nanocrystals remains challenging due to low sensitivity of common techniques. In this study, we demonstrate the easy functionalization of cellulose nanocrystals with different amines and analyze their surface structure using H-1 NMR. These results have implications in the fields of cultural heritage and materials chemistry.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yirong Zhang, Yixiang Wang
Summary: Recycling biomass waste into functional materials through rational structural design has gained significant attention. In this study, a core-sheath structure was developed using co-axial electrospinning, where a mixture of cellulose acetate and chitosan was used as the sheath layer to efficiently adsorb humic acid, and waste cotton fabric-derived cellulose nanocrystals were incorporated as load-bearing components in the core. Compared to non-layered fibers, the core-sheath fibers exhibited smaller diameters, greater homogeneity, and improved mechanical strength, while maintaining similar adsorption capacities towards humic acid. Even after complete hydrolysis, the electrospun fibers maintained their fibrous structures with higher tensile strength and acceptable adsorption capacity towards humic acid. Therefore, this work highlights the importance of rational design in the efficient preparation of functional materials and demonstrates the feasibility of using electrospun core-sheath fibers derived from biomass wastes for water contaminant removal.
Article
Polymer Science
Wen-bo Tan, Dan Luo, Wei Song, Yan-yan Lu, Nuo Cheng, Jia-bin Zhang, Ting Huang, Yong Wang
Summary: In this study, a novel adsorbent based on cellulose acetate was developed with excellent adsorption and reduction abilities for highly hazardous Cr(VI) removal from wastewater.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Yasin Akkoz, Ramazan Coskun
Summary: The aim of this study was to prepare an eco-friendly bioadsorbent from hemp fiber and investigate its adsorptive properties for anionic dyes adsorption. The results showed that the developed fibrous bioadsorbent exhibited high adsorption capacity for the three anionic dyes studied, with the adsorption process following pseudo-second-order kinetic and Langmuir isotherm model.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Nanoscience & Nanotechnology
Yuan Zhou, Yuanzhang Jiang, Yong Zhang, Lin Tan
Summary: By grafting epoxy propyl dimethyl dodecyl ammonium chloride onto the surface of a cellulose acetate membrane, a stable nonleaching antibacterial antifouling membrane was prepared. The results showed that a longer grafting time increased the quaternary ammonium salt groups on the membrane surface and enhanced hydrophilicity. Compared to the original membrane, the grafted membrane exhibited improved filtration capacity and antifouling performance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Eman M. Abd El-Monaem, Ahmed M. Omer, Randa E. Khalifa, Abdelazeem S. Eltaweil
Summary: In this study, a floated bead composite was fabricated for the efficient removal of tetracycline from water bodies. The composite beads exhibited a large specific surface area, good adsorption performance with a relatively short equilibrium time, and easy separation. Moreover, the composite beads showed promising applicability as a reusable adsorbent for the efficient removal of antibiotics.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Polymer Science
Rania Fekry Khedr
Summary: Lead ions Pb (II) in the aquatic environment can cause serious harm to human body, thus it is crucial to remove them. Grafting low density Polyethylene (LDPE) with Acrylonitrile and acrylic acid via radiation can effectively adsorb Pb (II) from the water.
Article
Materials Science, Textiles
Xiaochuan Zha, Md Shak Sadi, Yuxuan Yang, Tong Luo, Nianhua Huang
Summary: This study explored the effects of grafting hydrophilic poly(acrylic acid) branches onto acetate starch backbones, leading to improved adhesion to polyester fibers, enhanced film mechanical properties, and increased resistance to abrasion. The results indicated great potential for the application of AS-g-PAA in polyester warp sizing.
JOURNAL OF THE TEXTILE INSTITUTE
(2021)
Article
Agricultural Engineering
Abhishek Shukla, Vaibhav V. Goud, Chandan Das
INDUSTRIAL CROPS AND PRODUCTS
(2019)
Article
Agricultural Engineering
Abhishek Shukla, S. N. Naik, Vaibhav V. Goud, Chandan Das
INDUSTRIAL CROPS AND PRODUCTS
(2019)
Article
Environmental Sciences
Suman Saha, Rijumoni Boro, Chandan Das
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2019)
Article
Chemistry, Applied
Abhishek Shukla, R. S. Shukla, Chandan Das, Vaibhav V. Goud
Article
Engineering, Chemical
Amit B. Das, Vaibhav V. Goud, Chandan Das
JOURNAL OF FOOD PROCESS ENGINEERING
(2020)
Article
Chemistry, Applied
Abhishek Shukla, Chandan Das, Vaibhav V. Goud
Article
Agricultural Engineering
Abhradip Pal, Chandan Das
INDUSTRIAL CROPS AND PRODUCTS
(2020)
Article
Food Science & Technology
Amit Baran Das, Vaibhav V. Goud, Chandan Das
Summary: The study investigated the effect of extrusion cooking on the quality of rice extrudate infused with microencapsulated anthocyanin, as well as the moisture sorption isotherm of the extrudate. The optimized extrusion process resulted in extrudate with higher antioxidant activity and solubility compared to native extrudate. The moisture sorption isotherm followed type III isotherm behavior and was best fitted with the Caurie and Peleg models.
FOOD SCIENCE AND BIOTECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Uttara Mahapatra, Abhijit Chatterjee, Chandan Das, Ajay Kumar Manna
Summary: Activated carbon prepared from biosludge of natural rubber waste demonstrated effective removal of hexavalent chromium and methylene blue from aqueous solution. The study delved into the adsorption mechanisms, kinetics, and thermodynamics, revealing a maximum adsorption capacity of 36.01 and 31.14 mg/g for Cr(VI) and MB, respectively, with adsorption process influenced by temperature.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Engineering, Chemical
Sushma Chakraborty, Ramagopal Uppaluri, Chandan Das
Summary: The article discusses the efficacy of hybrid ultrasound-assisted extraction (UAE) and microfiltration (MF) process for effective processing of bitter gourd extract, showing that the hybrid process considerably reduces membrane fouling. This hybrid UAE-MF process can be considered as a good alternative to conventional processes in nonthermal juice processing technologies, providing nutritionally rich vegetable extracts with improved shelf life and lower processing costs.
JOURNAL OF FOOD PROCESS ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Abhradip Pal, Chandan Das
Summary: This study investigates an eco-friendly approach to inhibit the corrosion of boiler quality steel by using onion waste as a green corrosion inhibitor in acidic media. It is found that the onion peel extract at a concentration of 200 mg/L demonstrates excellent corrosion inhibition properties, reducing the corrosion current density significantly. Theoretical simulations suggest that the onion peel extract physisorbs onto the steel surface, exhibiting high adsorption efficiency and reactive sites
Article
Chemistry, Inorganic & Nuclear
Abhradip Pal, Chandan Das
Summary: In this study, banana flower bract extract was used as a method to inhibit the corrosion of steel, and the results showed that it had high inhibition efficiency in acidic media. The adsorption study further revealed that BBE acted as a mixed-type inhibitor and could effectively adsorb on the BQ surface.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Gunolla Nagendraprasad, Vasista Adupa, K. Anki Reddy, Chandan Das, Santanu Karan
Summary: The advancement of forward osmosis technology in commercial and industrial applications has been hindered by the lack of suitable membranes and ideal draw solutes. In this study, a semiaromatic polyamide membrane was investigated using molecular dynamics simulations to understand its structural properties and performance in the forward osmosis process. The results showed that the semiaromatic polyamide membrane exhibited excellent water permeability and no reverse draw solute flux.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Chemistry, Multidisciplinary
Anil Kumar, Chandan Das
Summary: Metal corrosion has become a growing concern in local and industrial scales recently, affecting conventional production. The development of a novel and ecofriendly corrosion inhibitor using chayote fruit extract shows high efficiency, environmental friendliness, and economic benefits. The chayote extract adsorbs onto the metal surface, forming a protective layer that effectively inhibits corrosion.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Biotechnology & Applied Microbiology
Abhishek Shukla, Chandan Das, Vaibhav V. Goud
FOOD AND BIOPRODUCTS PROCESSING
(2020)
Article
Environmental Sciences
Elizabeth Alvarez-Chavez, Stephane Godbout, Mylene Genereux, Caroline Cote, Alain N. Rousseau, Sebastien Fournel
Summary: This study evaluated the effect of alternative filtering materials and bed aeration on the retention of nutrients and fecal bacteria in woodchip bedded stand-off pads for cows. The results showed that the alternative biofilters were more efficient in removing COD, SS, TN, and NO3-N, while conventional biofilters were more efficient for PO4-P removal. Aeration did not have a significant effect under the tested temperature conditions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yike Zhang, Zengyi Ma, Zhuoting Fang, Yuandong Qian, Zhiping Huang, Yilong Ye, Jianhua Yan
Summary: This study investigates the application of oxygen enrichment melting technology in the melting of municipal solid waste incineration fly ash. The results demonstrate that oxygen enrichment technology can reduce energy consumption and operating costs, as well as decrease pollution emissions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Liangang Xiao, Mingkai Leng, Philip Greenwood, Rongqin Zhao, Zhixiang Xie, Zengtao You, Junguo Liu
Summary: This study investigates the effects of grazing exclusion on soil organic carbon (SOC) accumulation and vegetation recovery. It finds that grazing exclusion can increase the potential for SOC accumulation, and higher annual precipitation is positively correlated with SOC accumulation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Beatrice Cantoni, Jessica Ianes, Beatrice Bertolo, Selena Ziccardi, Francesco Maffini, Manuela Antonelli
Summary: This study evaluates the performance of ozonation and adsorption as in-series processes compared to standalone processes for the removal of Contaminants of Emerging Concern (CECs) in drinking water. The combination of both processes proves to be more effective than adsorption and ozonation alone. Ozonation improves the adsorption performance of poorly-oxidizable CECs but worsens that of well-oxidizable compounds. This research highlights the importance of considering both processes in the removal of CECs in drinking water treatment plants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Dan Li, Bingjun Liu, Yang Lu, Jianyu Fu
Summary: A new Standardized compound Drought and Saltwater intrusion Index (SDSI) was developed to detect changes in the severity of CDSEs in six estuaries. The study found that saltwater intrusion plays a dominant role in influencing SDSI severity, and CDSEs vary in frequency, duration and severity among different estuaries.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yong-Qiang Li, Rui Sun, Chong-Miao Zhang, Zi-Xuan Liu, Rui-tao Chen, Jian Zhao, Hua-dong Gu, Huan-Cai Yin
Summary: In this study, an electron beam excitation multi-wavelength ultraviolet (EBE-MW-UV) system was established and found to have significantly higher microbial inactivation effects compared to single-wavelength UV-LEDs in water. Mechanism analysis revealed that EBE-MW-UV damaged microbial DNA and proteins, and generated additional reactive oxygen species, leading to microbial inactivation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Kaili Ma, Xinxin Han, Qiujuan Li, Yu Kong, Qiaoli Liu, Xu Yan, Yahong Luo, Xiaopin Li, Huiyang Wen, Zhiguo Cao
Summary: This study reveals that the use of a tryptophan-degrading microbial consortium (TDC) can enhance the hydrolysis efficiency of waste activated sludge (WAS), increasing the yield and quality of short chain fatty acids (SCFAs) and improving the solubilization and release of organic substances from WAS.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Ling Xiong, Rui Li
Summary: Incorporating Ecosystem Service Value (ESV) into land use planning can provide informed land management decisions. This study evaluates the ESV of Guizhou Province in China's karst region. The results show an increase in total ESV over the past two decades due to ecological restoration projects.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
M. Geetha Jenifel
Summary: This article discusses the importance of water and the pollution of freshwater resources, and introduces the use of machine learning models and blockchain technology to predict and protect water quality.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Stanslaus Terengia Materu, Taotao Chen, Chang Liu, Daocai Chi, Meng Jun
Summary: The study showed that H2SO4-modified biochar can reduce P leaching, increase soil available P, and enhance plant P uptake in alternate wetting and drying irrigation systems. Biochar additions B20A and IAWDB20A-M were effective in improving yield, reducing P leaching, and increasing APB.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Amir Nouri, Ali Akbar Zinatizadeh, Sirus Zinadini, Mark Van Loosdrecht
Summary: This study focuses on the development of an air-lift bio-electrochemical reactor (ALBER) with a continuous feeding regime to enhance nitrogen removal from synthetic wastewater. The effect of temperature, hydraulic retention time (HRT), N -NH+4 /TN ratio, and current density on the reactor performance was investigated, and the ALBER achieved a maximum TN removal of 73%. The results suggest that the ALBER has potential for treating industrial wastewater at low temperatures.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Peifang Wang, Guoxiang You, Yang Gao, Juan Chen, Xun Wang, Chao Wang
Summary: This study investigated the ecological processes of microbial communities and N- and P-transformation processes in multistage agricultural drainage ditches. The results showed that the microbial communities were co-shaped by agricultural practices and ditch size, which further governed the N and P removal performance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Xiaofeng Niu, Huan Wang, Tao Wang, Peiyu Zhang, Huan Zhang, Hongxia Wang, Xianghong Kong, Songguang Xie, Jun Xu
Summary: Microorganisms play a critical role in maintaining ecosystem balance, and environmental stressors can affect the assembly processes of microbial communities. The study found that different stressors have opposite effects on microbial community assembly in water and sediment, and warming has different influences compared to herbicides and nutrients.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yuqing Tan, Qiming Cheng, Fengwei Lyu, Fei Liu, Linhao Liu, Yihong Su, Shaochun Yuan, Wenyu Xiao, Zhen Liu, Yao Chen
Summary: The exacerbation of global warming, extreme weather events, and rapid urbanization have led to increased flooding in urban areas. China has adopted sponge city as an efficient means of preventing and controlling urban floods. Using a SWMM-FVCOM model, the hydrological reduction and control effect of sponge city construction (SPCC) within a university campus were evaluated. The study found that implementing SPCC effectively mitigates surface runoff and reduces the severity of urban flooding. However, the efficacy of runoff control decreases with longer rainfall return periods.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Zhonghan Chen, Qiuyan Li, Shibo Yan, Juan Xu, Qiaoyun Lin, Zhuangming Zhao, Ziying He
Summary: Tidal rivers are important biochemical reaction channels, receiving carbon from wastewater and agricultural drains, affecting CO2 emissions. Through modeling and data analysis, researchers explored carbon distribution, emissions, and greenhouse effects, emphasizing the potential of river management to change global CO2 emissions under climate change.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)