Until now, the treatment of multiple water pollutants by using one simple material has still been a challenge. Pompon-like ZnO-Polyaniline heterostructures with different content of Polyaniline as out-layer were synthesized by hydrothermal method and hybridization. Their several applications were subsequently investigated for water pollutants treatment including photo-degradation of organic pollutants, photo-induced adsorption of heavy metal ions (Hg(II), Cr(VI)) and inactivation of Pathogenic bacteria (E. coli bacteria and staphylococcus aureus) under visible light. The results indicate that the aforementioned pollutants can be effectively removed by Pompon-like ZnO-Polyaniline heterostructure. The enhanced photochemical performance is attributed to: (1) the improved monodispersity and relative large specific surface area of pompon-like ZnO-PANI enhance the production of photo-induced OH and O; (2) the high separation efficiency of photo-generated electron-hole pairs, which comes from the synergistic effect of P-N type heterojunction.
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http://dx.doi.org/10.1016/j.jhazmat.2017.05.042 | DOI Listing |
PLoS One
January 2025
Grupo de Investigación Materiales con Impacto (Mat&mpac) Universidad de Medellín, Medellín, Colombia.
In this study, we utilized drinking water treatment sludge (WTS) to produce adsorbents through the drying and calcination process. These adsorbents were then evaluated for their ability to remove azithromycin (AZT) from aqueous solutions. The L-500 adsorbent, derived from the calcination (at 500°C) of WTS generated under conditions of low turbidity in the drinking water treatment plant, presented an increase in the specific surface area from 70.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
Eberhard Karls Universität Tübingen: Eberhard Karls Universitat Tubingen, Institut für Organische Chemie, Auf der Morgenstelle 18, 72076, Tübingen, GERMANY.
The direct incorporation of borondipyrromethene (BODIPY) subunits into the structural backbone of covalent organic frameworks (COFs) gives facile access to porous photosensitizers but is still a challenging task. Here, we introduce β‑ketoenamine-linked BDP‑TFP‑COF, which crystallizes in AA‑stacking mode with hcb topology. A comprehensive characterization reveals high crystallinity and enhanced stability in a variety of solvents, excellent mesoporosity (SABET = 1042 m2 g-1), broad light absorption in the visible region, and red emission upon the exfoliation of few-layer COF nanosheets.
View Article and Find Full Text PDFArch Microbiol
January 2025
Agricultural Botany Department, Faculty of Agriculture, Suez Canal University, 41522, Ismailia, Egypt.
Researchers have reported that Bacillus megaterium BM18-2 reduces Cd toxicity in Hybrid Pennisetum, but understanding the interaction between plants and associated endophytes is crucial for understanding phytoremediation strategies under heavy metal stress. The current study aims to monitor the colonization patterns of GFP-labeled endophytic bacteria BM18-2 on Hybrid Pennisetum grass. Additionally, it will monitor Cd's effect on plant bacterial colonization.
View Article and Find Full Text PDFEnviron Geochem Health
January 2025
School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China.
Groundwater arsenic (As), contamination is a significant issue worldwide including China and Pakistan, particularly in canal command areas. In this study, 131 groundwater samples were collected, and three machine learning models [Random Forest (RF), Logistic Regression (LR), and Artificial Neural Network (ANN)] were employed to predict As concentration. Descriptive statistics helped to conclude that all of the samples were inside the permitted limit of WHO for pH, Ca, Mg, Turbidity, Cl, K, Na, SO, NO, F and beyond limit of WHO for EC, HCO, TDS, and As.
View Article and Find Full Text PDFEnviron Monit Assess
January 2025
Department of Civil and Environmental Engineering, Babol Noshirvani University of Technology, Babol, Iran.
Water contamination by polycyclic aromatic hydrocarbons (PAHs), particularly naphthalene, is a serious environmental concern due to its persistence, bioaccumulation, and toxicity. This study explores the adsorption behavior of naphthalene using organobentonite (OBt), synthesized by intercalating cetyltrimethylammonium bromide (CTAB) into sodium bentonite (SBt) with varying cation exchange capacities (CECs). The effectiveness of OBt in naphthalene adsorption was evaluated by analyzing key parameters, including CEC, contaminant concentration, and contact time.
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