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Drug: Tetracycline
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Total 6023 results found since Jan 2013.
Synthesis of molecularly imprinted polymers based on nitrogen-doped carbon dots for specific detection of chlortetracycline by reversed phase microemulsion method
In this study, CTC was used as a template molecule and a molecularly imprinted layer was coated on the surface of highly fluorescent N-CDs using a reversed-phase microemulsion method to form N-CDs@MIPs. It was possible to specifically identify CTC without the influence of TC and OTC, which are extremely similar in structure. By comparing with the non-imprinted polymer (N-CDs@NIPs), it exhibited high sensitivity and selectivity with an imprinting factor of 2.02. And it was used in the determination of CTC in milk with recoveries and relative standard deviations of 96.7%-109.8% and 0.64%-3.27%, respectively, with high accura...
Source: Talanta - July 7, 2023 Category: Chemistry Authors: Yunyan Ren Zhefeng Fan Source Type: research
Effective degradation of tetracycline via persulfate activation using silica-supported zero-valent iron: process optimization, mechanism, degradation pathways and water matrices
Environ Sci Pollut Res Int. 2023 Jul 8. doi: 10.1007/s11356-023-28510-z. Online ahead of print.ABSTRACTPure zero-valent iron (ZVI) was supported on silica and starch to enhance the activation of persulfate (PS) for tetracycline degradation. The synthesized catalysts were characterized by microscopic and spectroscopic methods to assess their physical and chemical properties. High tetracycline removal (67.55%) occurred using silica modified ZVI (ZVI-Si)/PS system due to the improved hydrophilicity and colloidal stability of ZVI-Si. Incorporating light into the ZVI-Si/PS system improved the degradation performance by 9.45%. E...
Source: Environmental Science and Pollution Research International - July 7, 2023 Category: Environmental Health Authors: Eslam Salama Kenneth Mensah Marwa ElKady Hassan Shokry Mahmoud Samy Source Type: research
Removal of tetracycline in aqueous solution by iron-loaded biochar derived from polymeric ferric sulfate and bagasse
In this study, the tetracycline (TC) removal performance of iron-loaded biochar (BPFSB) derived from sugarcane bagasse and polymerized iron sulfate was investigated, and the mechanism of TC removal was also explored by study of isotherms, kinetics and thermodynamics and characterization of fresh and used BPFSB (XRD, FTIR, SEM and XPS). The results showed that under optimized conditions (initial pH 2; BPFSB dosage 0.8 g·L-1; TC initial concentration 100 mg·L-1; Contact time 24 h; temperature 298 K), the removal efficiency of TC was as high as 99.03%. The isothermal removal of TC followed well the Langmuir, Freundlich, and...
Source: Environmental Science and Pollution Research International - July 7, 2023 Category: Environmental Health Authors: Qiaojing Liu Xingfeng Cao Tiantian Yue Fengzhi Zhang Shaoyuan Bai Liheng Liu Source Type: research
Ultrasound enhanced destruction of tetracycline hydrochloride with peroxydisulfate oxidation over FeS/NBC catalyst: Governing factors, strengthening mechanism and degradation pathway
This study investigated the effects of control factors such as PDS dose, solution pH, ultrasonic power, and frequency on TC degradation. Within the applied ultrasound intensity range, TC degradation increases with increasing frequency and power. However, excessive power can lead to a reduced efficiency. Under the optimized experimental conditions, the observed reaction kinetic constant of TC degradation increased from 0.0251 to 0.0474 min-1, with an increase of 89%. The removal ratio of TC also increased from ∼85% to ∼99% and the mineralization level from 45% to 64% within 90 min. Through the decomposition testing of P...
Source: Chemosphere - July 6, 2023 Category: Chemistry Authors: Guangrong Liu Chuangfu Song Zilin Huang Xin Jin Kaihong Cao Fangyue Chen Bangheng Jin Li Rao Qiang Huang Source Type: research
Adsorption properties and mechanisms of methylene blue and tetracycline by nano-silica biochar composites activated by KOH
In this study, a novel nano-silica-biochar composite (NSBC) was synthesized based on corn straw as raw material, by a combination of ball milling, pyrolysis and KOH activation. The modified biochar with rough surface had higher specific surface area (117.67-132.82 m2/g), developed pore structure (0.12-0.15 cm3/g) and abundant surface functional groups (-OH, -COOH, Si-O and aromatic CC were dominated). These provided abundant active sites for the adsorption of pollutants. The adsorption capacities of NSBC for Methylene Blue (MB) and Tetracycline (TC) were both higher than that of other similar products, the maximum adsorpti...
Source: Chemosphere - July 3, 2023 Category: Chemistry Authors: Juan Liu Qianji Lin Jida Gao Xuping Jia Mengfan Cai Qiaochu Liang Source Type: research
Development of Co < sub > 3 < /sub > O < sub > 4 < /sub > /TiO < sub > 2 < /sub > /rGO photocatalyst for efficient degradation of pharmaceutical pollutants with effective charge carrier recombination suppression
Environ Res. 2023 Jul 1:116535. doi: 10.1016/j.envres.2023.116535. Online ahead of print.ABSTRACTPharmaceutical contaminations in the water resources becomes very serious global environmental issue. Therefore, these pharmaceutical molecules should be removed from the water resources. In the current work, 3D/3D/2D-Co3O4/TiO2/rGO nanostructures were synthesized through a facile self-assembly-assisted solvothermal method for an effective removal of pharmaceutical contaminations. The nanocomposite was finely optimized through the response surface methodology (RSM) technique with different initial reaction parameters and differ...
Source: Environmental Research - July 3, 2023 Category: Environmental Health Authors: Shanavas Shajahan Abu Haija Mohammad Source Type: research
The presence of copper ions alters tetracycline removal pathway in aerobic granular sludge: Performance and mechanism
This study investigated the removal characteristics of tetracycline (TC) in the presence of copper ions (Cu2+) in aerobic granular sludge by analyzing the TC removal pathway, composition and functional group changes of extracellular polymeric substances (EPS), and microbial community structure. The TC removal pathway changed from cell biosorption to EPS biosorption, and the microbial degradation rate of TC was reduced by 21.37% in the presence of Cu2+. Cu2+ and TC induced enrichment of denitrifying bacteria and EPS-producing bacteria by regulating the expression of signaling molecules and amino acid synthesis genes to incr...
Source: Bioresource Technology - July 3, 2023 Category: Biotechnology Authors: Lilong Yan Mingyue Yin Yue Jiao Yaoqi Zheng Luotinng Sun Mengya Yang Jingwen Miao Xu Song Nan Sun Source Type: research
Adsorption properties and mechanisms of methylene blue and tetracycline by nano-silica biochar composites activated by KOH
In this study, a novel nano-silica-biochar composite (NSBC) was synthesized based on corn straw as raw material, by a combination of ball milling, pyrolysis and KOH activation. The modified biochar with rough surface had higher specific surface area (117.67-132.82 m2/g), developed pore structure (0.12-0.15 cm3/g) and abundant surface functional groups (-OH, -COOH, Si-O and aromatic CC were dominated). These provided abundant active sites for the adsorption of pollutants. The adsorption capacities of NSBC for Methylene Blue (MB) and Tetracycline (TC) were both higher than that of other similar products, the maximum adsorpti...
Source: Chemosphere - July 3, 2023 Category: Chemistry Authors: Juan Liu Qianji Lin Jida Gao Xuping Jia Mengfan Cai Qiaochu Liang Source Type: research
The presence of copper ions alters tetracycline removal pathway in aerobic granular sludge: Performance and mechanism
This study investigated the removal characteristics of tetracycline (TC) in the presence of copper ions (Cu2+) in aerobic granular sludge by analyzing the TC removal pathway, composition and functional group changes of extracellular polymeric substances (EPS), and microbial community structure. The TC removal pathway changed from cell biosorption to EPS biosorption, and the microbial degradation rate of TC was reduced by 21.37% in the presence of Cu2+. Cu2+ and TC induced enrichment of denitrifying bacteria and EPS-producing bacteria by regulating the expression of signaling molecules and amino acid synthesis genes to incr...
Source: Bioresource Technology - July 3, 2023 Category: Biotechnology Authors: Lilong Yan Mingyue Yin Yue Jiao Yaoqi Zheng Luotinng Sun Mengya Yang Jingwen Miao Xu Song Nan Sun Source Type: research
Development of Co < sub > 3 < /sub > O < sub > 4 < /sub > /TiO < sub > 2 < /sub > /rGO photocatalyst for efficient degradation of pharmaceutical pollutants with effective charge carrier recombination suppression
Environ Res. 2023 Jul 1:116535. doi: 10.1016/j.envres.2023.116535. Online ahead of print.ABSTRACTPharmaceutical contaminations in the water resources becomes very serious global environmental issue. Therefore, these pharmaceutical molecules should be removed from the water resources. In the current work, 3D/3D/2D-Co3O4/TiO2/rGO nanostructures were synthesized through a facile self-assembly-assisted solvothermal method for an effective removal of pharmaceutical contaminations. The nanocomposite was finely optimized through the response surface methodology (RSM) technique with different initial reaction parameters and differ...
Source: Environmental Research - July 3, 2023 Category: Environmental Health Authors: Shanavas Shajahan Abu Haija Mohammad Source Type: research
