767-15-7Relevant articles and documents
Synthesis of TiO2-Ag3PO4photocatalyst material with high adsorption capacity and photocatalytic activity: application in the removal of dyes and pesticides
Agyei-Tuffour, Benjamin,Efavi, Johnson K.,Manu, Gloria,Nyankson, Emmanuel
, p. 17032 - 17045 (2021/05/25)
The photocatalytic activity of TiO2can be enhanced by coupling it with other semiconductors and the semiconductor composites may find useful application in water treatment technologies. TiO2-Ag3PO4composites wer
The performance and degradation mechanism of sulfamethazine from wastewater using IFAS-MBR
Hou, Huanhuan,Duan, Liang,Zhou, Beihai,Tian, Yuan,Wei, Jian,Qian, Feng
supporting information, p. 543 - 546 (2019/09/07)
Sulfamethazine (SMZ) is an important sulfonamide antibiotic. Although the concentration in the environment is small, it is harmful. The drug residues can be transferred, transformed or accumulated, affecting the growth of animals and plants. In this study, the integrated fixed-film activated sludge membrane bioreactor (IFAS-MBR) were constructed to investigate the performance and degradation mechanism of SMZ. The addition of SMZ had a significant impact on the removal of the chemical oxygen demand (COD) and ammonia nitrogen (NH4 +-N). The optimal operating conditions were hydraulic retention time (HRT) at 10 h and solid retention time (SRT) at 80 d, respectively. On this basis, the effects of different SMZ concentrations on nutrient removal, degradation, and sludge characteristics were compared. The removal efficiency of SMZ increased with the increase of SMZ concentration. The maximum removal rate was as high as 87%. The SMZ dosage also had an obvious effect on sludge characteristics. As the SMZ concentration increased, the extracellular polymer substances (EPS) concentration and the membrane resistance both decreased, which were beneficial for the reduction of membrane fouling. Finally, seven kinds of SMZ biodegradation intermediates were identified, and the possible degradation pathways were speculated. The microbial community results showed that the microbial diversity and richness in the reactor decreased after adding SMZ to the influent. The relative abundance of Bacteroidetes, Actinobacteria, Saccharibacteria and Nitrospirae increased at the phylum level. Sphingobacteria and Betaproteobacteria became dominant species at the class level. The relative abundance of norank-p-Saccharibacteria and Nitrospirae increased significantly, and norank-p-Saccharibacteria may be the dominant bacteria for SMZ degradation.
Sulfonamide hapten, sulfonamide artificial antigen and their preparation methods and application
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Paragraph 0071; 0073, (2019/06/30)
The invention relates to a sulfonamide hapten, a sulfonamide artificial antigen and their preparation methods and application. The sulfonamide hapten has a structure shown as formula (1) which is shown in the description, wherein n is an integer equal to 0, or greater than and equal to 1. The sulfonamide artificial antigen is made by coupling the hapten of the formula (1) and a carrier protein. Byimmunizing animals with the sulfonamide artificial antigen, specific antibodies with high efficacy and high sensitivity can be attained. The sulfonamide hapten and antibodies prepared with the same help provide a new means to establish a method to detect sulfonamides under high speed, good simplicity, low cost, good sensitivity and good specificity.