Article
Chemistry, Physical
Mahnaz Alizadeh, Mahmoud Zarei, Masoud Ebratkhahan, Mohammad Amjadi
Summary: The study investigated the effects and catalytic properties of various nanomaterials on permanganate chemiluminescence systems, with silver nanoprisms showing a significant enhancing effect on the system.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Analytical
Malgorzata Kaczmarek, Krzysztof Staninski, Mikolaj Stodolny
Summary: Fluoroquinolones were oxidized with potassium bromate in the presence of terbium (III) ions, leading to chemiluminescence that was used to determine the concentrations of levofloxacin and ofloxacin. The oxidation process can serve as a method for pharmaceutical analysis under optimized conditions.
Article
Engineering, Chemical
Shiyu Fang, Yisong Zhu, Wangbei Cao, Qian Wu, Wenxuan Huang, Feng Wang, Xiaoshi Cheng, Jiashun Cao, Jingyang Luo, Yang Wu
Summary: This study compared the effects of potassium permanganate (PM) and calcium sulfite-assisted PM (PM/ CS) pretreatment on volatile fatty acids (VFAs) production during waste activated sludge (WAS) fermentation. PM/ CS pretreatment resulted in acetate-enriched VFAs with improved sludge dewatering. The scavenging effects of interfering compounds and the EPS-binding effects of Ca2+ in PM/CS reactors might both restrain the effective WAS solubilization and hydrolysis efficiencies, thus resulting in reduced VFAs production. Moreover, both PM and PM/CS pretreatment promoted the enrichment of acetate-producing bacteria and acetate-forming metabolic functions, but PM/CS pretreatment was more conducive to this process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Qiuyan Li, Shuguang Yan, Hongjie Song, Yingying Su, Mingxia Sun, Yi Lv
Summary: In this study, a Ce(IV)-MOF structure with high selectivity and stability in chemiluminescence reaction was fabricated, leading to the successful establishment of a simple, stable, and sensitive fluorescent sensing platform for SO32-.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Engineering, Environmental
Qingdong Qin, Yongfeng Zhang, Hanmin Zhang, Xuchun Li, Yazi Liu
Summary: This study utilized potassium permanganate (KMnO4) to simultaneously remove tetracycline (TTC) and Cu(II) from water. The removal efficiency of TTC and Cu(II) was 92.8% and 78.5%, respectively, after 30 minutes of reaction under pH 6.0 and 50 μM of KMnO4. The factors affecting the simultaneous removal of TTC and Cu(II), such as initial concentrations, KMnO4 dose, solution pH, temperature, and water matrix, were comprehensively evaluated. Increasing the KMnO4 dose and reaction temperature improved the removal efficiency. This work provides a cost-effective approach for the simultaneous removal of TTC and Cu(II) from water.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Environmental
Dandan Rao, Jie Chen, Hongyu Dong, Junlian Qiao, Baoxue Zhou, Yuankui Sun, Xiaohong Guan
Summary: Using calcium sulfite as a slow-release source of sulfur dioxide, the effective working pH range of permanganate activation by sodium sulfite was extended from <= 7.0 to <= 9.0. The presence of calcium ions in the system led to enhanced precipitation of manganese dioxide, resulting in very low residual manganese levels. The Mn(VII)/CaSO3 system demonstrated a unique two-stage oxidation process with improved understanding of reaction kinetics and reactive oxidants.
Article
Engineering, Environmental
Tong Sun, Hongjie Song, Xiaobo Xie, Mingxia Sun, Yingying Su, Yi Lv
Summary: A novel chemiluminescence signal amplification strategy for tungsten disulfide quantum dots (WS2 QDs) through sulfuric acid activation was proposed for tetrachlorobenzoquinone (TCBQ) determination, enabling a sensitive and selective method for TCBQ detection in water samples.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Analytical
Qiuyan Li, Mingxia Sun, Yingying Su, Kexin Zhang, Yi Lv
Summary: The study successfully designed a novel chemiluminescence resonance energy transfer (CRET) strategy for the selective detection of SO32- with high sensitivity, even in PM2.5 samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Khair Un Nisa, Attiq Ur Rehman Kakar, Muhammad Asghar, Arif Samiullah, Naqeebullah, Niamatullah, Arif Shah
Summary: A flow injection (FI) methodology using the acidic potassium permanganate (KMnO4)-rhodamine-B (Rh-B) reaction with chemiluminescence (CL) detection was developed for the determination of acetochlor and cartap-HCl pesticides in freshwater samples. The method showed good linearity and sensitivity, with LODs and LOQs as low as 7.5 x 10(-4) mg L-1 and 2.5 x 10(-3) mg L-1, respectively. The method was able to accurately estimate the concentrations of acetochlor and cartap-HCl in spiked freshwater samples, with recoveries ranging from 93% to 112% and 98% to 109%, respectively. The most probable CL reaction mechanism was also explored.
Article
Biochemical Research Methods
Killian C. O'Connell, Nicola K. Lawless, Brennan M. Stewart, James P. Landers
Summary: Many assays require the use of highly concentrated acids or powerful oxidizing agents, which are often incompatible with traditional microfluidic devices. This study introduces a simple and inexpensive reagent storage strategy that allows for long-term compatibility and operation of microdevices with corrosive reagents. The strategy enables the storage of multiple highly corrosive and oxidative reagents simultaneously, expanding the possibilities for integrated multistep assays.
Article
Engineering, Chemical
Sung Ju Shin, You-In Park, Hosik Park, Young Hoon Cho, Ga Yeon Won, Youngmin Yoo
Summary: A facile method for crosslinking polybenzimidazole membranes for organic solvent nanofiltration using an aqueous potassium permanganate solution was presented. The crosslinked membranes exhibited superior separation performance and enhanced stability in various solvents.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Bin Lei, Chaoyang Wang, Ran Zhang, Zhiyong Xue, Feifei Chen
Summary: In this study, a single thiourea dioxide (TD) and two-components thiourea dioxide/ethanolamine (MEA) were used as green reducing agents for the efficient removal of Cr(VI) in a wide pH range. MEA promoted the generation of an active isomeride of TD by changing the equilibrium position of the reversible reaction. The experimental results demonstrated that TD/MEA was effective for the removal of Cr(VI) and had potential industrial application.
Article
Agronomy
Spoorthy Shenoy, Namrata Pathak, Adriana Molins, Antoniya Toncheva, Tim Schouw, Axel Hemberg, Fouad Laoutid, Pramod Mahajan
Summary: The study investigates the ethylene removal kinetics of different scavenging materials under various humidity conditions, finding that potassium permanganate-based scavengers are most effective at all humidity levels. Additionally, materials modified with titanium dioxide and palladium show high efficiency at low humidity levels but significant ethylene desorption at higher humidity levels.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2022)
Article
Environmental Sciences
Yinchen Da, Min Xu, Jing Ma, Peng Gao, Xiaohong Zhang, Gang Yang, Jun Wu, Chun Song, Lulu Long, Chao Chen
Summary: A novel vinasse biochar modified by potassium ferrate was synthesized to immobilize cadmium in agricultural soil. The modified biochar significantly reduced available cadmium in soil and increased crop yield and nutritional value.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Engineering, Chemical
Yu Cui, Yingchun Li, Wensheng Wang, Xiaojing Wang, Jing Lin, Xianmin Mai, Gang Song, Nithesh Naik, Zhanhu Guo
Summary: The study successfully utilized permanganate oxidation for polymer surface modification, achieving the separation and recovery of ABS and HIPS from waste electrical and electronic equipment. This provides technical support for the high-value recycling of waste plastics.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Spectroscopy
Zh. E. Ozbekova, A. A. Abdyldaev, A. A. Kulmyrzaev
Summary: This study compared two drying methods for cow and yak muscles, finding that freeze drying caused less discoloration. Additionally, analysis of fluorescence spectra allowed for accurate prediction of chemical composition and color characteristics of the muscles.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Leo Mandic, Ivan Ljubic, Iva Dzeba
Summary: In this study, a combined experimental and computational approach was used to investigate the photoexcitation and photodegradation mechanisms of Doxazosin (DOX). The results provide valuable insights into the primary events following the photoexcitation of DOX and its potential applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiufeng Wang, Yao Jin, Wenhui Ai, Siqi Wang, Zhiqing Zhang, Ting Zhou, Fang Wang, Guodong Zhang
Summary: This study successfully synthesized near infrared fluorescence Ag2S quantum dots (QDs) and developed a dual-mode sensor for sulfide anion using the excellent oxidase-like characteristics of manganese dioxide (MnO2) nanosheets. The sensor showed a wider detection range, higher sensitivity, and shorter reaction time, making it suitable for highly selective detection of sulfide in different concentration ranges.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yafei Li, Yanming Ma, Chuantao Zheng, Di Yu, Lien Hu, Shuo Yang, Fang Song, Yadan Li, Shuanghai Liu, Zhanrui Zhang, Yu Zhang, Yiding Wang, Frank K. Tittel
Summary: To effectively monitor gas explosion and coal spontaneous combustion in coal mine, an intrinsically safe and explosion-proof dual-gas sensor system was developed for methane (CH4) and carbon monoxide (CO) measurement. The system achieved different measurement ranges using laser scanning and gas cells, and improved stability and accuracy through gas pre-treatment and temperature compensation algorithm.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Pei-Rong Chen, Li-Kang Chu
Summary: In this study, the hydrates of glyoxal were investigated using infrared absorption spectrometry. The results showed that at low concentrations, glyoxal mainly exists as monomeric dihydrate. These findings provide suitable detection windows for further research on the roles of glyoxal and its hydrates in atmospheric and aerosol chemistry, as well as the relevant reaction kinetics.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Nichole O'Neill, Thamires A. Lima, Fabio Furlan Ferreira, Nicolas J. Alvarez, Reinhard Schweitzer-Stenner
Summary: This study determines the main fibril axis of GHG gel-forming fibrils using various techniques and compares the results with simulated data. The analysis suggests that the hydrophobic xz-surfaces of GHG fibrils could be a good target for the adsorption of hydrophobic drugs.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Mengyuan Liu, Hanchuang Zhu, Yikun Fang, Caiyun Liu, Xinke Li, Xiaohui Zhang, Lixue Ma, Kun Wang, Miaohui Yu, Wenlong Sheng, Baocun Zhu
Summary: ABHS is an efficient fluorescent probe that can accurately and sensitively detect Al3+ with strong resistance to interference. It also demonstrates excellent detection and imaging capabilities in complex real samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Ahmed S. El-Shafie, Evana Rahman, Yasser Gadelhak, Rehab Mahmoud, Marwa El-Azary
Summary: The recycling of waste mandarin peels into biochar (MRBC) has been used as a high performance and cost-effective adsorbent for treating polluted wastewater effluents. Batch adsorption studies were conducted to analyze the adsorption competency of MRBC on two dyes, methylene blue (MB) and basic fuchsin (BF), either in individual solutions or binary combinations. The results showed that MRBC was capable of effectively removing a high percentage of both dyes. However, the adsorption capacity decreased when the dyes were combined. The cost estimation of MRBC production and wastewater treatment indicated that both were relatively low.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Anindita Bhatta, Jahnabi Upadhyaya, Dipak Chamlagai, Lincoln Dkhar, Pynskhemborlang T. Phanrang, Mohan Rao Kollipara, Sivaprasad Mitra
Summary: Derivatives of thiazole-pyrazole fused benzo-coumarin compounds were synthesized and their photophysical properties were investigated. The synthesized coumarin compounds showed potential as therapeutic agents for Alzheimer's disease, inhibiting acetylcholinesterase activity. The presence of human serum albumin was found to affect the inhibition activity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yongwei Duan, Quancheng Liu, Yiju Zhu, Qi Zhang, Xiaohui Duan, Hu Deng, Liping Shang
Summary: In this study, the phase transition of CL-20 was observed using terahertz spectroscopy, and quantum chemical calculations were employed to analyze the vibrations. The results indicated changes in the vibrations of CL-20 before and after phase transition.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yuefeng Gao, Sai Xu, Baojiu Chen
Summary: This study synthesized Cs2NaInCl6 nanocrystals co-doped with Sb3+ and Tb3+ ions as probes for copper ions detection in lubricating oil. The introduction of Sb3+ effectively reduced the band gap of the host material and enabled energy transfer pathway for Tb3+ emission. The doped Tb3+ ions resulted in the suppression of emission due to electron transfer. The Cs2NaInCl6: 2.5 %Sb3+, 40 %Tb3+ NCs exhibited superior sensitivity and selectivity for copper ions detection.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yu Liu, Yue Zhang, Changyao Liu, Ce Wang, Baocai Xu, Li Zhao
Summary: A highly sensitive detection platform for heparin was developed using a cationic fluorescent dye (cresyl violet acetate) as a fluorescence probe. The platform demonstrated high selectivity towards heparin and achieved detection in both HEPES solution and serum.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Lopamudra Roy, Nivedita Pan, Susmita Mondal, Ria Ghosh, Md. Nur Hasan, Neha Bhattacharyya, Soumendra Singh, Kallol Bhattacharyya, Arpita Chattopadhyay, Samir Kumar Pal
Summary: The study focuses on the interaction between reactive oxygen species (ROS) and a spectroscopic probe called Rose Bengal (RB), encapsulated in nanoscopic sodium dodecyl sulphate (SDS) micelles and entrapped in microscopic nylon 66 solid matrix. The research demonstrates efficient interaction between ROS and RB-SDS, and investigates the mechanism of hydroxyl radicals generation. Based on these findings, a prototype device utilizing RB embedded in a nylon thin film for quantification of ROS in extracellular fluids and food materials was developed.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiaosong Sun, Qihao Cui, Wenyue Dong, Qian Duan, Teng Fei
Summary: Conjugated porous polymers (CPPs) are promising sensing materials and their application in aqueous media is limited. In this study, we synthesized CPPs with porous structure and prepared nanoparticles, enabling efficient photoluminescence sensing of nitroaromatic explosives in aqueous phase.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Maria Cristina Caggiani, Germana Barone, Paolo Mazzoleni
Summary: Raman spectroscopy is commonly used for studying glassy materials in cultural heritage, but it is more difficult to interpret the spectra and apply the technique with portable instruments. In contrast, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) can be used in archaeometric investigations as it is portable and non-invasive. However, there is limited application of this technique to historical glasses. This exploratory work demonstrates the potential of DRIFTS, in combination with portable X-ray Fluorescence (pXRF) and EDS microanalyses, for studying the composition and alteration of glass samples in cultural heritage.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)