Article
Engineering, Environmental
Rongrong Dai, Baogui Liu, Yan Zhang, Jacob Nedergaard Pedersen, Xiaowen Zhang, Mingdong Dong, Zheng Guo
Summary: CuNiAl ternary hydrotalcite synthesized by co-precipitation method showed the best catalytic activity in the hydroxylation reaction, converting phenol into catechol and hydroquinone as main products, with broad substrate adaptability. Additionally, a plausible reaction mechanism was proposed based on control reactions and XPS analysis.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Inorganic & Nuclear
Milan Sys, Jana Kocabova, Jitka Klikarova, Miroslav Novak, Robert Jirasko, Michaela Oblukova, Tomas Mikysek, Romana Sokolova
Summary: Two dinuclear copper complexes and one mononuclear copper complex were synthesized and their catalytic activities were compared. It was found that the dinuclear complexes exhibited higher catalytic efficiency than the mononuclear complex. The catalytic mechanism was characterized using cyclic voltammetry, spectrophotometry, and UV-Vis spectroelectrochemistry.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Ke Zheng, Song Shi, Hongchuan Xin, Jin Gao, Zengjian An
Summary: A method for selectively activating the C-H bond of phenol into a C-OH bond was developed using Cu2+ ions and hydrogen peroxide in a two-phase system. Addition of alcohols increased the selectivity for catechol in the product. This offers an effective hydroxylation method for producing catechol from phenol.
CATALYSIS COMMUNICATIONS
(2021)
Article
Chemistry, Applied
Viyana Movahed, Leila Arshadi, Mehrnaz Ghanavati, Ehsan Mahdavi Nejad, Zahra Mohagheghzadeh, Mosayeb Rezaei
Summary: A sensing layer containing ZnO@MnO2-rGO nanocomposite was used to modify a glassy carbon electrode for monitoring some antioxidant molecules. The resulting nanocomposite-modified electrode exhibited significant electrocatalytic activities, with low detection limits and satisfactory analytical performance.
Article
Chemistry, Physical
Vincent Ball, Maria Laura Alfieri, Kevin Ziegler, Youri Arntz, Marco d'Ischia
Summary: The deposition efficiency and electrochemical properties of coatings obtained from different benzenediols were compared. Resorcinol showed higher deposition efficiency compared to catechol, while hydroquinone did not form detectable coating. Catechol and hydroquinone exhibited reversible electrochemical properties, while resorcinol displayed an irreversible process. The results provide insights for future studies on coating design and tailoring.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Analytical
Jinshui Liu, Huijuan Bao, Chenfu Liu, Fangfei Wu, Ting Fu
Summary: A environmentally friendly turn-on fluorescent method for detecting HQ and CC was developed using fluorescent polymer nanoparticles synthesized by crosslinking protamine sulfate with HQ or CC in an aqueous solution. The method showed a linear relationship between fluorescence intensity and HQ or CC concentration, with detection limits of 0.21 and 0.33 mu M, and high selectivity with no interferences from common substances. This method successfully detected HQ and CC in spiked water samples with satisfactory results.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Xiaoxue Liu, Jiao Yang, Jing Cheng, Yi Xu, Wen Chen, Yingchun Li
Summary: The study successfully synthesized Co1.5Mn1.5O4 nanozyme via an eco-friendly method, mimicking the activities of multiple enzymes and distinguishing organic pollutants through a colorimetric sensing platform.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Mycology
Amelia-Grace Boxshall, Joanne L. Birch, Teresa Lebel, Matthew R. E. Symonds, Damien L. Callahan
Summary: Agaricus xanthodermus and other species in the yellow-staining section Xanthodermatei are responsible for mushroom-related poisoning cases, showing variation in toxicity levels potentially influenced by basidiomatal structures, developmental stages, tissue types consumed, and nutritional substrates. Phenol concentration, along with other factors, may contribute to the observed differences in toxicity, with human sensitivity to simple phenols also playing a role.
Article
Chemistry, Analytical
Aya Al-Shekaili, Wesal Al-Shukaili, Emad A. Khudaish
Summary: This study presents a sensing network based on oxidative graphene oxide (OGO) that improves the surface conductivity and electron transfer kinetics. The experimental results show that OGO has higher reactivity compared to bare GCE and VGO-GCE, and demonstrates good selectivity and sensitivity in the determination of hydroquinone and catechol.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Engineering, Environmental
Haiping Huang, Yanan Chen, Zhongzhen Chen, Jinglin Chen, Yongmei Hu, Jun-Jie Zhu
Summary: Ce-MOF/CNTs nanocomposites were prepared by a simple method and post-treated with NaOH/H2O2 mixed solution. The morphology and structure of the treated samples were characterized by various techniques, and the results showed a morphological change in Ce-MOF and the presence of two valence states of Ce3+/Ce4+ in the composite. The nanocomposites were used to fabricate an electrochemical sensor for the simultaneous detection of hydroquinone (HQ) and catechol (CC) with improved performance compared to the untreated samples.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Cheng Wang, Rui Wu, Hao Ling, Zhiling Zhao, Wenjia Han, Xiaowen Shi, Gregory F. Payne, Xiaohui Wang
Summary: This study reports a composite paper electrode fabricated through designed papermaking that offers sensitive and selective chemical detection. The composite paper can be electrochemically reduced under relatively mild conditions, enhancing its electrocatalytic properties. Compared to traditional surface modification methods, this composite paper electrode exhibits comparable or even better sensing performance.
NPJ FLEXIBLE ELECTRONICS
(2022)
Article
Electrochemistry
Shohreh Jahani, Ali Sedighi, Ali Toolabi, Mohammad Mehdi Foroughi
Summary: In this study, a new nanocomposite was successfully fabricated for simultaneous detection of hydroquinone (HQ), catechol (CT), and resorcinol (RS). The nanocomposite exhibited large surface area, high electrical conductivity, and potent catalytic activity, allowing for the simultaneous detection of the three compounds.
ELECTROCHIMICA ACTA
(2022)
Article
Polymer Science
Chao Hu, Haiping Huang, Han Sun, Yu Yan, Fang Xu, Jinsheng Liao
Summary: A dual-template molecularly imprinted polymer/carbon nanotubes/grassy carbon electrode was constructed for simultaneous detection of hydroquinone (HQ) and catechol (CC). The electrode exhibited enhanced response current and detection performance compared to carbon nanotubes/grassy carbon electrode. It showed good reproducibility and stability, and was successfully applied for the detection of HQ and CC in river water.
Article
Chemistry, Analytical
R. Ramya, D. Nathiya, P. Thivya, J. Wilson
Summary: A facile one-pot synthesis of Ag-TiO2 using functionalized guar gum (FGG) was reported, enabling simultaneous detection of multiple organic pollutants. The nanocomposite modified electrode showed excellent detection performance and electrocatalytic activity against environmental pollutants. This sensor displayed good sensitivity, selectivity, and reproducibility for pollutant quantification.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Jie Zhou, Beibei Zhu, Lu Wang, Yan Bao, Guofeng Guan
Summary: A novel Z-scheme CdS/CeO2/g-C3N4 nanocomposite was synthesized by a solvothermal method and its photocatalytic activity for the degradation of phenol was evaluated. The nanocomposite exhibited remarkable photocatalytic activity with a degradation rate of 95 % in 180 min, surpassing that of pure CeO2 and CdS/CeO2. The enhanced photocatalytic ability is mainly attributed to the higher adsorption capacity of three-dimensional porous g-C3N4 and the three-dimensional space electric field formed by its complex with CdS and CeO2.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
