keyword
https://read.qxmd.com/read/38538375/insight-into-the-catalytic-performances-of-fe-0-chitosan-cellulose-green-hybrid-structure-for-enhanced-photo-fenton-s-oxidation-of-levofloxacin-toxic-residuals-pathway-and-toxicity
#1
JOURNAL ARTICLE
Sarah I Othman, Haifa E Alfassam, Haifa A Alqhtani, Maha A Al-Waili, Ahmed A Allam, Mostafa R Abukhadra
A green hybridized structure of Fe0 painted chitosan/cellulose base (Fe0 @CS/CF) has been developed using cellulose extracted from sugarcane bagasse along with reduction agents sourced from Khaya senegalensis leaves. The composite was assessed as an affordable, powerful, and multifunctional catalyst for enhancing the degradation of Levofloxacin (LVX) remnants within water supplies via photo-Fenton's interactions. Using a dosage of 0.5 g/L, the Fe0 @CS/CF blend demonstrated noteworthy catalytic qualities, resulting in the complete photo-Fenton's degradation of LVX at a level of 25 mg/L after 40 min...
March 22, 2024: International Journal of Biological Macromolecules
https://read.qxmd.com/read/38534555/advances-in-biological-wastewater-treatment-processes-focus-on-low-carbon-energy-and-resource-recovery-in-biorefinery-context
#2
REVIEW
J Shanthi Sravan, Leonidas Matsakas, Omprakash Sarkar
Advancements in biological wastewater treatment with sustainable and circularity approaches have a wide scope of application. Biological wastewater treatment is widely used to remove/recover organic pollutants and nutrients from a diverse wastewater spectrum. However, conventional biological processes face challenges, such as low efficiency, high energy consumption, and the generation of excess sludge. To overcome these limitations, integrated strategies that combine biological treatment with other physical, chemical, or biological methods have been developed and applied in recent years...
March 16, 2024: Bioengineering
https://read.qxmd.com/read/38534030/fep-based-nanotheranostic-platform-for-enhanced-phototherapy-ferroptosis-chemodynamic-therapy
#3
JOURNAL ARTICLE
Na An, Shuanglong Tang, Yuwei Wang, Jing Luan, Ying Shi, Minghui Gao, Chongshen Guo
Ferroptosis is an iron-dependent and lipid peroxides (LPO)-overloaded programmed damage cell death, induced by glutathione (GSH) depletion and glutathione peroxide 4 (GPX4) inactivation. However, the inadequacy of endogenous iron and reactive oxygen species (ROS) restricts the efficacy of ferroptosis. To overcome this obstacle, a near-infrared photo-responsive FeP@PEG NPs is fabricated. Exogenous iron pool can enhance the effect of ferroptosis via the depletion of GSH and further regulate GPX4 inactivation...
March 27, 2024: Small
https://read.qxmd.com/read/38528416/self-propelled-nanojets-an-interfacial-schottky-junctions-modulated-oxygen-vacancies-enriched-for-enhanced-photo-fenton-degradation-of-organic-contaminant-improving-h-2-o-2-generation-fe-3-fe-2-cycle-and-enhancing-plant-metabolism-chemosphere-volume-314-february
#4
JOURNAL ARTICLE
https://read.qxmd.com/read/38528405/expression-of-concern-sunlit-expeditious-visible-light-mediated-photo-fenton-degradation-of-ciprofloxacin-by-exfoliation-of-nico-2-o-4-and-zn-0-3-fe-2-7-o-4-over-g-c-3-n-4-matrix-a-brief-insight-on-degradation-mechanism-degraded-product-toxicity-and-genotoxic
#5
JOURNAL ARTICLE
https://read.qxmd.com/read/38523211/enhanced-degradation-of-direct-red-80-dye-via-fenton-like-process-mediated-by-cobalt-ferrite-generated-superoxide-radicals-and-singlet-oxygen
#6
JOURNAL ARTICLE
Gessica do Carmo Dias, Noemi Cristina Silva de Souza, Eduardo Israel Pimenta de Souza, Gustavo Alves Puiatti, Renata Pereira Lopes Moreira
Azo dyes, widely used in the textile industry, contribute to effluents with significant organic content. Therefore, the aim of this work was to synthesize cobalt ferrite (CoFe2 O4 ) using the combustion method and assess its efficacy in degrading the azo dye Direct Red 80 (DR80). TEM showed a spherical structure with an average size of 33 ± 12 nm. Selected area electron diffraction and XRD confirmed the presence of characteristic crystalline planes specific to CoFe2 O4 . The amount of Co and Fe metals were determined by ICP-OES, indicating an n(Fe)/n(Co) ratio of 2...
March 25, 2024: Environmental Science and Pollution Research International
https://read.qxmd.com/read/38523152/copper-ii-phosphate-as-a-promising-catalyst-for-the-degradation-of-ciprofloxacin-via-photo-assisted-fenton-like-process
#7
JOURNAL ARTICLE
Mateusz Rozmyślak, Adrian Walkowiak, Marcin Frankowski, Lukasz Wolski
This work aims to unravel the potential of copper(II) phosphate as a new promising heterogenous catalyst for the degradation of ciprofloxacin (CIP) in the presence of H2 O2 and/or visible light (λ > 400 nm). For this purpose, copper(II) phosphate was prepared by a facile precipitation method and fully characterized. Of our particular interest was the elucidation of the kinetics of CIP degradation on the surface of this heterogeneous catalyst, identification of the main reactive oxygen species responsible for the oxidative degradation of CIP, and the evaluation of the degradation pathways of this model antibiotic pollutant...
March 25, 2024: Scientific Reports
https://read.qxmd.com/read/38458586/enhanced-degradation-of-enoxacin-using-ferrihydrite-catalyzed-heterogeneous-photo-fenton-process
#8
JOURNAL ARTICLE
Lin Tian, Liting Wang, Shikun Wei, Liwen Zhang, Deming Dong, Zhiyong Guo
The ferrihydrite-catalyzed heterogeneous photo-Fenton reaction shows great potential for environmental remediation of fluoroquinolone (FQs) antibiotics. The degradation of enoxacin, a model of FQ antibiotics, was studied by a batch experiment and theoretical calculation. The results revealed that the degradation efficiency of enoxacin reached 89.7% at pH 3. The hydroxyl radical (∙OH) had a significant impact on the degradation process, with a cumulative concentration of 43.9 μmol L-1 at pH 3...
March 6, 2024: Environmental Research
https://read.qxmd.com/read/38452629/decomposition-of-microplastics-using-copper-oxide-bismuth-vanadate-based-photocatalysts-insight-mechanisms-and-environmental-impacts
#9
JOURNAL ARTICLE
C Chokejaroenrat, T Watcharatharapong, J T-Thienprasert, A Angkaew, T Poompoung, C Chinwong, T Chirasatienpon, C Sakulthaew
To mitigate marine pollution, we improved the photo-Fenton reaction of modified nanoscale CuO/BiVO4 photocatalysts to resolve the challenge of efficient microplastic degradation in wastewater treatment. Material property analysis and computational results revealed that deposition of CuO onto BiVO4 nanocomposites improved photocatalytic activity by promoting an excess of electrons in CuO and surface charge transfer, resulting in an increased production of e- -h+ for ROS generation via H2 O2 activation. 1 O2 was dominated and identified through quenching experiments, XPS analysis, and EPR...
March 6, 2024: Marine Pollution Bulletin
https://read.qxmd.com/read/38434902/bismuth-based-z-scheme-heterojunction-photocatalysts-for-remediation-of-contaminated-water
#10
REVIEW
Tadesse Lemma Wakjira, Abebe Belay Gemta, Gashaw Beyene Kassahun, Dinsefa Mensur Andoshe, Kumneger Tadele
Agricultural runoff, fuel spillages, urbanization, hospitalization, and industrialization are some of the serious problems currently facing the world. In particular, byproducts that are hazardous to the ecosystem have the potential to mix with water used for drinking. Over the last three decades, various techniques, including biodegradation, advanced oxidation processes (AOPs), (e.g., photocatalysis, photo-Fenton oxidation, Fenton-like oxidation, and electrochemical oxidation process adsorption), filtration, and adsorption techniques, have been developed to remove hazardous byproducts...
February 27, 2024: ACS Omega
https://read.qxmd.com/read/38430437/wood-converted-porous-carbon-decorated-with-mil-101-fe-derivatives-for-promoting-photo-fenton-degradation-of-ciprofloxacin
#11
JOURNAL ARTICLE
Kaiqian Li, Xupeng Zhang, Xueqin Huang, Xianghong Li, Qiaowen Chang, Jing Wang, Shuduan Deng, Gang Zhu
In response to the escalating concerns over antibiotics in aquatic environments, the photo-Fenton reaction has been spotlighted as a promising approach to address this issue. Herein, a novel heterogeneous photo-Fenton catalyst (Fe3 O4 /WPC) with magnetic recyclability was synthesized through a facile two-step process that included in situ growth and subsequent carbonization treatment. This catalyst was utilized to expedite the photocatalytic decomposition of ciprofloxacin (CIP) assisted by H2 O2 . Characterization results indicated the successful anchoring of MIL-101(Fe)-derived spindle-like Fe3 O4 particles in the multi-channeled wood-converted porous carbon (WPC) scaffold...
March 2, 2024: Environmental Science and Pollution Research International
https://read.qxmd.com/read/38430010/remodeling-microenvironment-for-implant-associated-osteomyelitis-by-dual-metal-peroxide
#12
JOURNAL ARTICLE
Xin Guan, Siyuan Wu, Sixue Ouyang, Shuchen Ren, Naiqian Cui, Xiaohu Wu, Dayong Xiang, Wenting Chen, Bin Yu, Peng Zhao, Bowei Wang
Implant-associated osteomyelitis (IAOM) is characterized by deep bone infection and progressive bone destruction, current therapy of long-term high-dose antibiotic treatment and radical surgical debridement often results in drug-resistance and large bone defect. It is highly challenging to develop an antibiotic-free, rapid bactericidal and osteogenic-enhanced strategy for IAOM. Herein, we design an IAOM tailored anti-bacterial and osteoinductive composite of Cu-Sr peroxide nanoparticles (CSp NPs) encapulated in polyethylene glycol diacrylate (PEGDA) (CSp@PEGDA)...
March 2, 2024: Advanced Healthcare Materials
https://read.qxmd.com/read/38417602/partially-oxidized-mackinawite-biochar-for-photo-fenton-organic-contaminant-removal-synergistically-improve-interfacial-electron-transfer-and-h-2-o-2-activation
#13
JOURNAL ARTICLE
Binrong Li, Chen Wang, Na Li, Chunyang Chen, Zhi Zhu, Xu Tang, Yanhua Cui, Tingting Liu, Collins Kwashie Attatsi, Xuedong Wang
Immobilizing Fe-based nanoparticles on electron-rich biochar has becoming an attractive heterogeneous Fenton-like catalysts (Fe/BC) for wastewater decontamination. However, the insufficient graphitization of biochar causing low electron transfer and by slow H2 O2 activation limited its application. Herein, we firstly constructed FeS/biochar composite through all-solid molten salt method (Fe/MSBCs), which can provide strong polarization force and liquid reaction environment to improve carbonization. As expected, the obtained Fe/MSBCs exhibits high surface area and fast interfacial electron transfer between FeS and biochar...
February 26, 2024: Environmental Pollution
https://read.qxmd.com/read/38401819/phthalocyanine-based-probes-in-alleviating-or-evading-tumour-hypoxia-for-enhanced-photo-and-sono-mediated-therapeutic-efficacies
#14
REVIEW
Lindokuhle Cindy Nene, Heidi Abrahamse
This review discusses the possible methods for improving therapeutic efficacies of phthalocyanine (Pcs) -based therapeutic probes in photo- and sono-dynamic therapies under hypoxic conditions. Herein, the structural design strategies including varying the central metal, position substituents and the effects of adjuvant used in supplementing the therapeutics activities of Pcs or formation of NPs are discussed for cancer therapies in hypoxic conditions. Different mechanisms induced for cell death influenced by the compositions of the Pcs-probes are discussed...
February 22, 2024: Photodiagnosis and Photodynamic Therapy
https://read.qxmd.com/read/38401638/enhanced-photo-fenton-degradation-of-dyes-under-visible-light-with-recyclable-%C3%AE-fe-2-o-3-cqds-catalyst-preparation-performance-and-mechanism-insight
#15
JOURNAL ARTICLE
Qian Xu, Qian Xue, Shengmei Tan, Zhiliang Cheng, Xueqiang Qi, Chaoqun Yan
A low band gap and visible light-responsive heterogeneous Photo-Fenton catalyst of γ-Fe2 O3 /CQDs micron composite was prepared under the one-pot hydrothermal method. The Photo-Fenton degradation of γ-Fe2 O3 /CQDs towards dye solution of rhodamine B(RhB), methyl blue (MB), and methyl orange (MO) was studied comparatively with α-Fe2 O3 . The γ-Fe2 O3 /CQDs exhibited remarkable catalytic performance for various dyes and with a first-order rate (k) of 14 times higher than that of initial α-Fe2 O3 with a low concentration of H2 O2 of 0...
February 22, 2024: Environmental Pollution
https://read.qxmd.com/read/38398669/broad-spectral-response-feooh-bio-2-x-photocatalyst-with-efficient-charge-transfer-for-enhanced-photo-fenton-synergistic-catalytic-activity
#16
JOURNAL ARTICLE
Pengfei Wu, Yufei Qin, Mengyuan Gao, Rui Zheng, Yixin Zhang, Xinli Li, Zhaolong Liu, Yingkun Zhang, Zhen Cao, Qingling Liu
In this work, to promote the separation of photogenerated carriers, prevent the catalyst from photo-corrosion, and improve the photo-Fenton synergistic degradation of organic pollutants, the coating structure of FeOOH/BiO2-x rich in oxygen vacancies was successfully synthesized by a facile and environmentally friendly two-step process of hydrothermal and chemical deposition. Through a series of degradation activity tests of synthesized materials under different conditions, it was found that FeOOH/BiO2-x demonstrated outstanding organic pollutant degradation activity under visible and near-infrared light when hydrogen peroxide was added...
February 19, 2024: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/38383932/iron-bearing-mining-reject-as-an-alternative-and-effective-catalyst-for-photo-fenton-oxidation-of-phenol-in-water
#17
JOURNAL ARTICLE
Luana Rabelo Hollanda, Joyce Azevedo Bezerra de Souza, Guilherme Luiz Dotto, Edson Luiz Foletto, Osvaldo Chiavone-Filho
In this work, iron-bearing mining reject was employed as an alternative and potential low-cost catalyst to degrade phenol in water by photo-Fenton strategy. Various techniques, including SEM-EDS, BET, FTIR, and XRD, were applied to evaluate the material's properties. Process parameters such as hydrogen peroxide concentration, catalyst dosage, and pH were studied to determine the optimum reaction conditions ([catalyst] = 0.75 g L-1 , [H2 O2 ] = 7.5 mM, and pH = 3)...
February 22, 2024: Environmental Science and Pollution Research International
https://read.qxmd.com/read/38383276/modulating-electron-density-enable-efficient-cascade-conversion-from-peroxymonosulfate-to-superoxide-radical-driven-by-electron-rich-poor-dual-sites
#18
JOURNAL ARTICLE
Jingjing Jiang, Donglong Shi, Shu Niu, Shengda Liu, Yansong Liu, Bowen Zhao, Yanan Zhang, Hongyu Liu, Zhenhao Zhao, Mingyu Li, Mingxin Huo, Dandan Zhou, Shuangshi Dong
The superoxide radical (•O2 - )-mediated peroxymonosulfate (PMS)-based photo-Fenton-like reaction enables highly selective water decontamination. Nevertheless, the targeted construction of •O2 - -mediated photo-Fenton-like system has been challenging. Herein, we developed an electron-rich/-poor dual sites driven •O2 - -mediated cascade photo-Fenton-like system by modulating electron density. Experimental and theoretical results demonstrated that PMS was preferentially adsorbed on electron-poor Co site...
February 8, 2024: Journal of Hazardous Materials
https://read.qxmd.com/read/38377695/morusin-cu-ii-indocyanine-green-nanoassembly-ignites-mitochondrial-dysfunction-for-chemo-photothermal-tumor-therapy
#19
JOURNAL ARTICLE
Yalin Ran, Junfeng Hu, Yuanyuan Chen, Zhenan Rao, Jichun Zhao, Zhigang Xu, Jian Ming
Nanoscale drug delivery systems derived from natural bioactive materials accelerate the innovation and evolution of cancer treatment modalities. Morusin (Mor) is a prenylated flavonoid compound with high cancer chemoprevention activity, however, the poor water solubility, low active pharmaceutical ingredient (API) loading content, and instability compromise its bioavailability and therapeutic effectiveness. Herein, a full-API carrier-free nanoparticle is developed based on the self-assembly of indocyanine green (ICG), copper ions (Cu2+ ) and Mor, termed as IMCNs, via coordination-driven and π-π stacking for synergistic tumor therapy...
February 15, 2024: Journal of Colloid and Interface Science
https://read.qxmd.com/read/38373023/fenton-like-reaction-recent-advances-and-new-trends
#20
JOURNAL ARTICLE
Jiaying Xiao, Sufang Guo, Dong Wang, Qi An
The Fenton reaction refers to the reaction in which ferrous ions (Fe2+) produce hydroxyl radicals and other reactive oxidizing substances by decomposing hydrogen peroxide (H2O2). This paper reviews the mechanism, application system, and materials employed in the Fenton reaction including conventional homogeneous and non-homogeneous Fenton reactions as well as photo-, electrically-, ultrasonically-, and piezoelectrically-triggered Fenton reactions, and summarizes the applications in the degradation of soil oil pollutions, landfill leachate, textile wastewater, and antibiotics from a practical point of view...
February 19, 2024: Chemistry: a European Journal
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