Article
Biochemistry & Molecular Biology
Hemant Mittal, Ali Al Alili, Pranay P. Morajkar, Saeed M. Alhassan
Summary: The study synthesized graphene oxide crosslinked nanocomposites hydrogels of chitosan and carboxymethyl cellulose as versatile adsorbents for both cationic and anionic dyes contaminated wastewater. The adsorption process was well explained using pseudo-second-order and Langmuir models, with excellent regeneration capacity demonstrated for continuous cycles of adsorption-desorption. The synthesized CS/CMC-NCH showed great potential for effective treatment of dye-contaminated wastewater.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Materials Science, Multidisciplinary
Jiale Yao, Min Sang, Danying Zuo, Hongwei Zhang, Hongjun Li, Qiuhan Wang
Summary: By incorporating layered double hydroxide (LDH) into semi-interpenetrating polymer network (sIPN) hydrogels, the researchers successfully prepared optimized samples with high selective adsorption capacity for removing dyes from wastewater and improved fragility issue. The adsorption kinetics and isotherm analysis suggested strong electrostatic interaction mechanism and multilayered adsorption behavior. The sIPN hydrogel containing LDH showed high regeneration efficiency and could withstand multiple cycles of use.
MATERIALS TODAY COMMUNICATIONS
(2023)
Review
Chemistry, Multidisciplinary
Mohammed Benjelloun, Youssef Miyah, Gulsun Akdemir Evrendilek, Farid Zerrouq, Sanae Lairini
Summary: The increased environmental awareness and tighter regulatory standards have led various industries to seek appropriate wastewater treatment technologies for colored wastewater. This review provides detailed information on dyes, their classification, the environmental impact of water pollution, and the use of adsorption technology as a sustainable solution for dye removal. Studies evaluating the effectiveness of different adsorbents, particularly low-cost ones, in removing dyes from aqueous solutions are highlighted.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Engineering, Environmental
Xin Li, Keran Li
Summary: An environmentally friendly hydrogel adsorbent (DEC@GEL) was successfully prepared by a simple free-radical polymerization method, exhibiting abundant functional groups and porous structures. Batch and multisystem adsorption experiments were conducted to investigate the adsorption properties of various dyes in wastewater, revealing consistent kinetics and isotherms with the pseudo-second-order and Langmuir model, respectively. The maximum adsorption capacities of the four tested dyes were higher than many reported adsorbents. Moreover, DEC@GEL demonstrated high reusability, selectivity, and potential for practical industrial applications.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
C. A. Rodriguez-Ramirez, Joana E. Tasque, Nancy Lis Garcila, Norma B. D'Accorso
Summary: Novel materials using biowaste as adsorbents in wastewater treatment have gained considerable interest. The synthesis of different hydrogels of crosslinked polyacrylamide in the presence of hemicelluloses with/without bentonite was presented. The resulting hydrogel showed promising adsorption properties for dye removal and reduced the use of non-renewable resources.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Polymer Science
Chukwunonso O. Aniagor, M. A. Afifi, A. Hashem
Summary: The study utilized a superabsorbent hydrogel synthesized from a renewable agro-based precursor to adsorb lead in water, with the structure and properties characterized and the effects of process variables on adsorption capacity studied. The biosorbent showed high water absorbency and effectiveness as a renewable and eco-friendly option for lead ion removal.
Article
Engineering, Environmental
Shweta Sharma, Gaurav Sharma, Amit Kumar, Tahani Saad AlGarni, Mu Naushad, Zeid A. ALOthman, Florian J. Stadler
Summary: This study synthesized a novel polysaccharide-based hydrogel with excellent swelling properties and adsorption capacity for dyes, showing its potential as an efficient adsorbent for removing dyes from aqueous solutions.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Honglin Zhu, Sunni Chen, Hanyi Duan, Jie He, Yangchao Luo
Summary: Chitosan (CS)/carboxymethyl cellulose (CMC) porous hydrogels crosslinked by epichlorohydrin and with polyethylene glycol (PEG) as a pore-forming agent were synthesized for removal of anionic (Congo red, CR) and cationic (methylene blue, MB) dyes from aqueous solutions. The addition of PEG significantly increased the adsorption of CR and MB, with optimal performance observed for hydrogels prepared with 2% CS and 2% CMC (CS2/CMC2). The adsorption processes followed pseudosecond-order and pseudo-first-order kinetics models for CR and MB, respectively. Freundlich and Langmuir models were suitable for describing the adsorption isotherms of CR and MB, respectively. The thermodynamic study confirmed that the adsorption of CR and MB by the hydrogels was spontaneous, with CR adsorption being endothermic and MB adsorption being exothermic.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Applied
Zhiyu Huang, Peng Wu, Yankun Yin, Xiang Zhou, Lu Fu, Luoxin Wang, Shaohua Chen, Xu Tang
Summary: Novel modified cottons were obtained by introducing 4-aminopyridin into the surface of cotton fibers, and they exhibited high adsorption capacities and selective adsorption performance for the removal of anionic dyes from aqueous solution.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Water Resources
Santosh Singh, Himanshu Gupta, Soniya Dhiman, Nawal Kishore Sahu
Summary: This study successfully demonstrated the removal of brilliant green dye from aqueous medium using activated carbon prepared from waste banana peels. The adsorption of dye was found to be exothermic, spontaneous, and favorable, indicating potential for treatment of wastewater contaminated with brilliant green and other toxic pollutants.
APPLIED WATER SCIENCE
(2022)
Article
Polymer Science
Somayeh Rahdar, Abbas Rahdar, Mostafa Sattari, Laleh Divband Hafshejani, Athanasia K. Tolkou, George Z. Kyzas
Summary: Dyes are hazardous industrial pollutants, and effective removal from wastewater is crucial. A BaFe12O19/CoFe2O4@PEG nanocomposite showed high efficiency in removing Acid Blue 92, with a maximum of 77.54% removal at pH 2. Adsorption isotherm and kinetic data fit well with models, especially the pseudo-second order and Freundlich isotherm models.
Article
Chemistry, Physical
Hemant Mittal, Ali Al Alili, Pranay P. Morajkar, Saeed M. Alhassan
Summary: This study focused on preparing xanthan gum based hydrogel nanocomposites via chemical-crosslinking with graphene oxide for the highly efficient adsorption of crystal violet dye from contaminated wastewater. The results showed that the material has the potential to treat cationic dyes contaminated wastewater in large quantities, with good reuse efficiency demonstrated through twenty continuous cycles of adsorption-desorption.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Biochemistry & Molecular Biology
Yufan Huang, Bihua Shen, Chenmin Zheng, Bingqing Huang, Guoguang Zhang, Peng Fei
Summary: The objective of this research was to devise a functional hydrogel that can simultaneously adsorb cationic and anionic dyes. The hydrogel, synthesized using pectin, acrylic acid, dimethyldiallyl ammonium chloride, and polyvinyl alcohol, showed high adsorption efficiency for methylene blue and Congo red dyes. The adsorption mechanism is mainly governed by hydrogen bonding and electrostatic interactions.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Engineering, Environmental
Jie Ren, Ruirui Li, Xuemiao Wang, Meng Li, Wu Yang
Summary: This study developed a hydrogel adsorbent for the removal of dye pollutants in dyeing wastewater. The hydrogel exhibited good adsorption performance towards various organic dyes and could spontaneously adsorb at ambient temperature. Additionally, it could be completely degraded by microorganisms in the soil.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Environmental Sciences
Sadanand Pandey, Edwin Makhado, Sujeong Kim, Misook Kang
Summary: One of the main problems with water pollution is dye contamination, which has endangered the world's sources of drinking water. Adsorption methods, particularly biopolymer-based hydrogel nanocomposites, are shown to be effective in removing organic dyes from the environment. This research provides a critical review of the literature on the potential of hydrogel nanocomposites (HNCs) to remediate dye-contaminated water, with a focus on development prospects and optimal conditions for dye adsorption processes.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Qian Wu, Yubo Cui, Guifeng Xia, Jinlong Yang, Shuming Du, Xinhong Xiong, Li Yang, Dong Xu, Xu Deng, Jiaxi Cui
Summary: Passive daytime radiative cooling (PDRC) technology, while promising for global spacing cooling, faces limitations in practical application due to reduced cooling effectiveness caused by wear and dirt contamination. Researchers have developed a renewable armor structure using fluorinated hollow glass microspheres to enhance the anti-fouling and cooling properties of PDRC coatings. The coatings exhibit high solar reflectance and thermal emittance, leading to significant temperature reduction below ambient temperature.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Qiang Bei, Bei Zhang, Kaifeng Wang, Shiming Zhang, Guichuan Xing, Clement Cabanetos
Summary: The power conversion efficiency (PCE) of organic solar cells (OSCs) has reached 20% in recent years, thanks to the advantages of organic photoactive materials. Benzothiadiazole (BT) has attracted significant research attention as a building block of OSCs. OSCs based on BT structure have shown diversity, and the increasing PCE values indicate a promising future for OSCs. This review analyzes the progress made in the last decades, focusing on effective BT small-molecules and BT polymers for OSCs. The structure-property relationships, donor-acceptor matching criteria, and morphology control approaches are discussed. The remaining challenges and a personal perspective on the future advancement of OSCs are summarized.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Rong He, Dandan Tang, Ningge Xu, Heng Liu, Kun Dou, Xuejun Zhou, Fabiao Yu
Summary: Nasopharyngeal carcinoma (NPC) is a common malignant tumor of the head and neck, with a high incidence in China and Southeast Asian countries. In this study, a novel near-infrared fluorescent probe, SNAFL-GSH, was designed and synthesized for the detection of glutathione (GSH). The probe showed selective detection of GSH and the ability to distinguish normal and cancer cells. It has great potential for application in the diagnosis and evaluation of NPC.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Zhukang Guo, Baijiang Jin, Yile Fang, Lian Jin, Song Li, Yan Deng, Zhu Chen, Hui Chen, Yuanying Zhang, Rabia Usman, Nongyue He
Summary: This study isolated primary cells that can be stably passaged from spontaneous tumors of genetically engineered pancreatic ductal adenocarcinoma model mice and used an autonomously developed automated screening instrument for efficient nucleic acid aptamer screening. The obtained aptamers were affinity verified at the cellular level. The study also investigated the impact of cell growth environment difference on the recognition ability of aptamers and confirmed the targeting ability and drug loading ability of the aptamer.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Zhongshan Yang, Qiqi Zhang, Hui Song, Xin Chen, Jiwei Cui, Yanhui Sun, Lequan Liu, Jinhua Ye
Summary: Methane chemistry is a significant area of research in catalysis. Converting methane into value-added chemicals is desirable but challenging due to its high C-H bonding energy and lack of pi bonding or unpaired electrons. Photocatalytic partial oxidation of methane to liquid oxygenates is a promising technology for achieving high efficiency and selectivity under mild conditions. The choice and activation of oxidants are crucial for its performance.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Peng Shan, Jing Liao, Jiayi Li, Chengyan Wang, Jie Zhou, Linqiang Mei, Yunlu Dai, Qiang Wang, Wenyan Yin
Summary: This study reports an oral radioprotectant Gel@GYY that combines a gelatin-based hydrogel and a pH-responsive hydrogen sulfide donor. Gel@GYY has excellent adhesion and sustained release properties, allowing it to release H2S in the gastrointestinal tract and effectively scavenge free radicals induced by radiation. It also reduces inflammation and has biodegradable properties.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Lu Liu, Ziyi Liu, Jingnan Cui, Guiling Ning, Weitao Gong
Summary: The development of new metal-free heterogeneous catalysts has been the subject of extensive research. In this study, a new Troger's base (TB)-derived porous organic polymer (POPs) was designed and prepared by integrating multifunctional monomers. The resulting polymer, which combines the advantages of pillar[5]arene macrocycle and TB moiety, exhibited enhanced catalytic performance in Knoevenagel condensation and CO2 conversion, serving as an effective metal-free catalyst. This work provides a new strategy for fabricating metal-free heterogeneous catalysts based on macrocyclic POPs.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Leyong Zhou, Changyin Yang, Weitao Dou, Tongxia Jin, Haibo Yang, Lin Xu
Summary: This review summarizes the application of micro/nanofluidic techniques in constructing supramolecular assemblies of different scales, and highlights the advantages of these techniques over conventional synthesis methods. Furthermore, it emphasizes the potential of micro/nanofluidic systems in improving our understanding of supramolecular self-assembly processes.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Yanchao Jin, Suixiaochen Chen, Peiwen Huang, Xiongjian Chen, Chun-Yan Lin, Li-Ping Li, Xiao Chen, Rui Ding, Jianxi Liu, Riyao Chen
Summary: In this study, magnesium and coconut shell carbon were used to disinfect water by adsorbing copper(II) and converting dissolved oxygen to hydrogen peroxide through Mg corrosion. The copper was enriched on the carbon surface and efficiently catalyzed the hydrogen peroxide to inactivate E.coli. The process showed promising disinfection performance both in laboratory experiments and real wastewater treatment.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Haihong Lai, Zehong Chen, Hao Zhuo, Yijie Hu, Xuan Zhao, Jiwang Yi, Hongzhi Zheng, Ge Shi, Yifan Tong, Ling Meng, Xinwen Peng, Linxin Zhong
Summary: By altering the pyrolysis route of cellulose nanofiber, the structural defects of carbon aerogels can be reduced, leading to improved compressibility and stress retention, as well as higher stress sensor sensitivity and temperature coefficient.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Lina Guo, Jinsong Ding, Wenhu Zhou
Summary: Bacteria-based tumor therapy has resurfaced due to the revolution of tumor immunotherapy, offering unique solutions for traditional tumor treatments. Bacteria with active tropism can selectively colonize tumor sites and suppress tumor growth through various mechanisms, making them attractive tools for tumor treatment. This critical review introduces recent advances in bacteria-based tumor therapy, including bacterial properties, their benefits for tumor therapy, anti-tumor mechanisms, challenges, and future perspectives.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Lan Liang, Chuanbin Wang, Xukai Lu, Yunan Sun, Beibei Yan, Ning Li, Guanyi Chen, Li'an Hou
Summary: This study investigates the interactions between phenol and benzaldehyde in the ECH process through experiments and theoretical calculations. The results show that phenol can accelerate the conversion of benzaldehyde, while benzaldehyde inhibits the conversion of phenol. The research provides a theoretical basis for the application of ECH in practical bio-oil upgrading.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Pengcheng Fan, Yuhao He, Junan Pan, Ning Sun, Qiyu Zhang, Chen Gu, Kang Chen, Weinan Yin, Longlu Wang
Summary: This study focuses on the recent progress in hydrogen evolution reaction (HER) based on photothermal effect. It introduces the main pathways of photothermal conversions applied in H2 evolution, summarizes the functions of the photothermal effect, and presents a method to improve the catalytic system through thermal means. The study also discusses the challenges and outlook in this promising area.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Leiduo Lai, Hongyu Zhou, Yichen Hong, Mengfan Luo, Yang Shi, Heng Zhang, Zhaokun Xiong, Gang Yao, Bo Lai
Summary: In this study, a facile ammonia reduction strategy was proposed and a novel FeVO3-x catalyst was synthesized for the activation of peroxymonosulfate (PMS) to degrade the pharmaceutical carbamazepine (CBZ). The results showed that the system could rapidly degrade CBZ and generate various active species involved in the degradation process.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Tangxin Xiao, Xiuxiu Li, Liangliang Zhang, Kai Diao, Zheng-Yi Li, Xiao-Qiang Sun, Leyong Wang
Summary: This study presents the construction of a supramolecular light harvesting system based on sequential energy transfer. The system demonstrates tunable fluorescence emission through self-assembly of polymers into nanoparticles, achieving efficient two-step light harvesting.
CHINESE CHEMICAL LETTERS
(2024)