Severity: Warning
Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
Filename: helpers/my_audit_helper.php
Line Number: 176
Backtrace:
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 1034
Function: getPubMedXML
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3152
Function: GetPubMedArticleOutput_2016
File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global
File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword
File: /var/www/html/index.php
Line: 316
Function: require_once
Extracellular antibiotic resistance gene (eARG) has emerged as a global crisis in recent years, yet commonly used disinfectants have proven ineffective for their elimination. Seeking to enhance the degradation efficiency of eARG, this study explored the potential of carbon nanotubes-activated persulfate (CNTs + PS) system as a novel method for eradicating eARG. Our findings demonstrated that CNTs + PS effectively disrupted the intact structure of eARG, inhibited their genetic replication and horizontal transfer capability, achieving remarkable degradation of eARG contamination. Further experiments revealed that O played a predominant role in eARG degradation, while electron transfer played minor roles in the degradation process. The carbonyl groups served as the primary sites for activating PS to generate O. CNTs can enhance the efficiency of electron transfer from eARG to PS. Moreover, the degradation efficacy of eARG by CNTs + PS was influenced by various factors including the dosage ratio between CNTs and PS, initial concentrations of eARG, pH values, inorganic anions and humic substances and water matrix. Reusability experiment demonstrated that CNTs + PS exhibited stable degradation performance after multiple uses. These findings offer a new perspective for the efficient degradation of eARG in environmental remediation.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.envpol.2024.125072 | DOI Listing |
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!