TY - JOUR
T1 - Comparative study of ZIF-8-materials for removal of hazardous compounds using physio-chemical remediation techniques
AU - Sarwar, Bazla
AU - Khan, Asad Ullah
AU - Aslam, Muhammad
AU - Bokhari, Awais
AU - Mubashir, Muhammad
AU - Alothman, Asma A.
AU - Ouladsmane, Mohamed
AU - Aldossari, Samar A.
AU - Chai, Wai Siong
AU - Khoo, Kuan Shiong
N1 - Generated from Scopus record by KAUST IRTS on 2023-09-20
PY - 2023/3/1
Y1 - 2023/3/1
N2 - The inherent toxicity, mutagenicity and carcinogenicity of dyes that are discharged into aquatic ecosystems, harming the health of humans and animals. ZIF-8 based composites are regarded as good adsorbents for the breakdown of dyes in order to remove or degrade them. In the course of this research, metal-organic framework materials known as ZIF-8 and its two stable composites, ZIF-8/BiCoO3 (MZBC) and ZIF-8/BiYO3 (MZBY), were produced via a hydrothermal process and solvothermal process, respectively, for the dangerous Congo red (CR) dye removal from the solution in water using adsorption method. According to the findings, the most significant amount of CR dye that could be adsorbed is onto MZBC, followed by MZBY and ZIF-8. The pseudo-second-order kinetic model was used effectively to match the data for adsorption behavior and was confirmed using the Langmuir isotherm equation. There is a possibility that the pH and amount of adsorbent might influence the adsorption behavior of the adsorbents. According to the experiment results, the technique featured an endothermic adsorption reaction that spontaneously occurred. The higher adsorption capability of MZBC is because of the large surface area. This results in strong interactions between the functional groups on the surface of MZBC and CR dye molecules. In addition to the electrostatic connection between functional group Zn–O–H on the surface of ZIF-8 in MZBC and the –NH2 or SO3 functional group areas in CR molecules, it also includes the strong π–π interaction of biphenyl rings.
AB - The inherent toxicity, mutagenicity and carcinogenicity of dyes that are discharged into aquatic ecosystems, harming the health of humans and animals. ZIF-8 based composites are regarded as good adsorbents for the breakdown of dyes in order to remove or degrade them. In the course of this research, metal-organic framework materials known as ZIF-8 and its two stable composites, ZIF-8/BiCoO3 (MZBC) and ZIF-8/BiYO3 (MZBY), were produced via a hydrothermal process and solvothermal process, respectively, for the dangerous Congo red (CR) dye removal from the solution in water using adsorption method. According to the findings, the most significant amount of CR dye that could be adsorbed is onto MZBC, followed by MZBY and ZIF-8. The pseudo-second-order kinetic model was used effectively to match the data for adsorption behavior and was confirmed using the Langmuir isotherm equation. There is a possibility that the pH and amount of adsorbent might influence the adsorption behavior of the adsorbents. According to the experiment results, the technique featured an endothermic adsorption reaction that spontaneously occurred. The higher adsorption capability of MZBC is because of the large surface area. This results in strong interactions between the functional groups on the surface of MZBC and CR dye molecules. In addition to the electrostatic connection between functional group Zn–O–H on the surface of ZIF-8 in MZBC and the –NH2 or SO3 functional group areas in CR molecules, it also includes the strong π–π interaction of biphenyl rings.
UR - https://linkinghub.elsevier.com/retrieve/pii/S0013935122024951
UR - http://www.scopus.com/inward/record.url?scp=85146063313&partnerID=8YFLogxK
U2 - 10.1016/j.envres.2022.115168
DO - 10.1016/j.envres.2022.115168
M3 - Article
C2 - 36584838
SN - 0013-9351
VL - 220
JO - Environmental Research
JF - Environmental Research
ER -