Article
Environmental Sciences
Jaspreet Kaur, Gaurav Mudgal, Arvind Negi, Jeewan Tamang, Shambhawi Singh, Gajendra Bahadur Singh, K. Jagadeesh Chandra Bose, Sandip Debnath, Mohammad Ahmad Wadaan, Muhammad Farooq Khan, Janne Ruokolainen, Kavindra Kumar Kesari
Summary: The commercial processing of biomaterials produces wastewater containing azo dyes and hydrolyzed by-products. Current treatment methods lack selectivity and efficiency. Microbial-assisted methods, such as the use of Agrobacterium strain JAS1, have been identified as a potential solution for degrading azo dyes and their by-products.
Article
Materials Science, Multidisciplinary
Jinyi Wang, Sen Yang
Summary: The study synthesized nanoporous Cu/Cu2O catalysts through dealloying, comparing their degradation performance in wastewater treatment and evaluating their adsorption behavior and activation energy. The catalysts demonstrated high degradation efficiency and good kinetic fitting, showing potential for efficient wastewater treatment.
Article
Chemistry, Multidisciplinary
Carlos Hernandez Rodriguez, Jose de Jesus Perez Bueno, Alejandra Xochitl Maldonado Perez, Missael Ruiz Flores, Goldie Oza
Summary: In this study, silicon nanowires were decorated with copper nanoparticles, graphene oxide, and both copper and graphene oxide to serve as photoelectrocatalysts for removing the azoic dye methyl orange. The nanowires were synthesized through the MACE process and characterized by various techniques. The photoelectrocatalytic activity of the nanostructures was tested under visible light, and Si-NWs-Cu-NPs-GO exhibited the highest MO removal efficiency.
Article
Chemistry, Multidisciplinary
Jiamei Mo, Nan Wang, Shaohong Zhang, Xiaoli Chen, Juan Fu, Peili Chen, Zheng Liang, Qiucheng Su, Xinjun Li
Summary: g-C3N4/melem nanorods hybrids were synthesized via a rapid cooling process with H2SO4-assisted treatments, and exhibited enhanced photocatalytic performance compared to bulk g-C3N4. The improved efficiency is mainly attributed to the synergistic effect of g-C3N4 and melem.
RESEARCH ON CHEMICAL INTERMEDIATES
(2022)
Article
Chemistry, Physical
Jiajie Xing, Min Song, Mengyao Yang, Xu Tan, Fenglin Li, Xixin Wang, Jianling Zhao
Summary: Granular copper films (GCFs) were prepared and used as electro-Fenton-like cathodes for degradation of methyl orange (MO). The effects of triethanolamine concentration, pH value, current intensity and temperature on the morphology of the films and MO decolorization ratio were investigated. Results indicate that the GCF cathode can efficiently decolorize MO under optimal conditions.
Article
Multidisciplinary Sciences
Dina F. Katowah, Sayed M. Saleh, Sara A. Alqarni, Reham Ali, Gharam I. Mohammed, Mahmoud A. Hussein
Summary: A unique network core-shell hybrid design-based cross-linked polyaniline, coated with CuO nanoparticles and decorated with nitrogen-doped SWCNT/GO/cellulose N-SWCNTS-GO-CE, has been fabricated using oxidative polymerization technique. The hybrid nanocomposite shows excellent photocatalytic degradation and an acceptable adsorption capability for Methyl Orange dye, making it an effective option for water treatment.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Electrical & Electronic
V. V. Gawade, S. R. Sabale, R. S. Dhabbe, S. Kite, K. M. Garadkar
Summary: The study reports the green synthesis of zinc oxide nanostructures using Syzygium cumini leaf extract, which exhibit spherical shape with a particle size of 25-30 nm. The synthesized ZnO nanostructures show high photodegradation efficiency for model dye pollutants under UV-Vis light, with 88% degradation efficiency for methyl orange and 84% for methylene blue within specific time frames.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Environmental Sciences
Zhijun Ren, Zhanxin Wang, Longyi Lv, Peiyu Ma, Guangming Zhang, Yuyou Li, Yu Qin, Pengfei Wang, Xiaoyang Liu, Wenfang Gao
Summary: The Fe-N-BC/Na2S composite system showed enhanced decolorization of MO compared to unmodified BC, with Fe-N-BC demonstrating better adsorption performance and electron transfer capacity. The cooperation mode of Fe-N-BC and Na2S involved an infinite cycle of adsorption-reduction-regeneration, leading to rapid decolorization of MO by increasing contact opportunity and accelerating electron transfer in the reduction reaction. Additionally, the degradation of MO by Na2S served as in-situ regeneration of Fe-N-BC, providing a feasible method to quickly decolorize azo dyes by cooperating with chemical reducing agents from a new perspective.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Nanoscience & Nanotechnology
Lingyu Gu, Shushen Wang, Xidong Hui, Fudong Li, Hengfu Lin, Kaiming Wu
Summary: Nanoporous Cu powders prepared by dealloying show superior catalytic degradation efficiency towards azo dyes in both acidic and neutral environments. The catalyst exhibits good durability and has great potential applications in wastewater treatment.
Article
Chemistry, Physical
Hao Sun, Seul-Yi Lee, Soo-Jin Park
Summary: Photocatalytic technology is a promising alternative for water treatments, but its practical application is limited by low efficiency and selectivity. In this study, two-dimensional zinc oxide nanosheets decorated with copper-palladium bimetallic nanoparticles were synthesized for the degradation of organic dyes in water. The prepared composites showed superior photocatalytic performance compared to pristine ZnO nanosheets under visible-light irradiation, attributed to enhanced separation and transfer efficiency of charge carriers. The highest catalytic efficiency was achieved by CuPd/ZnO nanocomposite with 0.5 wt% CuPd, achieving 95.3% removal of methyl orange within 45 minutes. This study provides a new avenue for the design and fabrication of high-performance photocatalysts for water treatments.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Zeyuan Hu, Yidong Miao, Xiaolan Xue, Bin Xiao, Jiqiu Qi, Fuxiang Wei, Qinkun Meng, Yanwei Sui, Zhi Sun, Jinlong Liu
Summary: Growing electroactive materials directly on a three-dimensional conductive substrate can increase the energy density and stability of the electrode. Designing electrode materials with unique microstructures can improve material utilization and cycle stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
M. C. Shibu, M. D. Benoy, G. Suresh Kumar, J. Duraimurugan, V. Vasudevan, Mohd. Shkir, Omar AL-Otaibi
Summary: In this study, a novel MWCNT/copper oxide hybrid nanocomposite and pristine copper oxide were synthesized using hydrothermal techniques and used as a sunlight-driven photocatalyst for the degradation of methyl orange organic pollutant. The inclusion of MWCNTs significantly impacted the crystalline phase, lattice parameters, particle size, shape, and optical band gap. After 6 hours of sunlight exposure, the MWCNT/copper oxide nanocomposite exhibited a higher photodegradation efficiency than pure copper oxide, making it a promising photocatalyst for wastewater treatment.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Engineering, Chemical
Meiling Tu, Jinkun Yu, Jun Wang, Xiao Shi, Zhixiang Fu, Sainan Hu, Mingqiang Zhong, Zhengdong Fei
Summary: TiO2/BTMSPA hybrid particles with coral-like structure were prepared for the removal of methyl orange dye from wastewater. The structure and adsorption mechanism of the particles were analyzed, and the adsorption isotherms and kinetics of methyl orange were studied. The hybrid particles showed high decolorization rates, maximum adsorption capacity, and excellent performance for the removal of other anionic dyes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Sina Sorayyaei, Farshad Raji, Ahmad Rahbar-Kelishami, Seyed Nezameddin Ashrafizadeh
Summary: This study focused on investigating the performance of an integrated EC-adsorption system for removing methyl orange from aqueous solution. By optimizing the operating conditions, it was found that a removal yield of 93.1% could be achieved under specific experimental conditions. The initial concentration and the interaction between initial concentration and pH were identified as the factors with the most significant impact on methyl orange removal efficacy.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Multidisciplinary Sciences
Mateus H. Keller, Raphaell Moreira, Bruno S. Souza
Summary: Heterogeneous chemical processes play a crucial role in applied chemistry. This study explores the possibility of measuring the kinetics of chemical reactions and adsorption processes in homogeneous and heterogeneous systems using smartphone images and a Python program. The results show that this method is accurate and comparable to traditional UV-Vis spectroscopy for measuring reaction kinetics.
SCIENTIFIC REPORTS
(2022)