TY - JOUR
T1 - Superior organic dye removal by CoCr2O4 nanoparticles
T2 - Adsorption kinetics and isotherm
AU - Ngoc, Pham Kim
AU - Mac, Trung Kien
AU - Nguyen, Huu Tuan
AU - Viet, Do Thanh
AU - Thanh, Tran Dang
AU - Van Vinh, Pham
AU - Phan, Bach Thang
AU - Duong, Anh Tuan
AU - Das, Raja
N1 - Funding Information:
This research is funded by the Vietnam National Foundation for Science and Technology Development under grant number 103.02-2019.314 .
Publisher Copyright:
© 2022 Vietnam National University, Hanoi
PY - 2022/6
Y1 - 2022/6
N2 - In the present work, we have reported the dye removal efficiency of Cobalt chromite, CoCr2O4 nanoparticles synthesized via the solvothermal method. The obtained CoCr2O4 nanoparticles demonstrated that the dye removal efficiency of CoCr2O4 nanoparticles could be enhanced by a reduction of size or improved water dispersibility. The pseudo-second-order kinetic model best describes the adsorption of Congo red (CR) dye on CoCr2O4 nanoparticles. The Langmuir adsorption isotherm model fitted best for the adsorption process and the adsorption capacity for CCO@450 and CCO@550 nanoparticles were found to be 59.4 and 43.8 mg g−1, respectively. Dye adsorption studies on a mixture of CR, MB, and RhB dyes solution revealed that the MB removal efficiency of CoCr2O4 nanoparticles could improve to 81% compared to 55% in solo MB solution. With the ease of use, high stability, diverse working environment, and superior adsorption capacity, CoCr2O4 nanoparticles have the potential to be used as an organic dye removal adsorbent for wastewater treatment.
AB - In the present work, we have reported the dye removal efficiency of Cobalt chromite, CoCr2O4 nanoparticles synthesized via the solvothermal method. The obtained CoCr2O4 nanoparticles demonstrated that the dye removal efficiency of CoCr2O4 nanoparticles could be enhanced by a reduction of size or improved water dispersibility. The pseudo-second-order kinetic model best describes the adsorption of Congo red (CR) dye on CoCr2O4 nanoparticles. The Langmuir adsorption isotherm model fitted best for the adsorption process and the adsorption capacity for CCO@450 and CCO@550 nanoparticles were found to be 59.4 and 43.8 mg g−1, respectively. Dye adsorption studies on a mixture of CR, MB, and RhB dyes solution revealed that the MB removal efficiency of CoCr2O4 nanoparticles could improve to 81% compared to 55% in solo MB solution. With the ease of use, high stability, diverse working environment, and superior adsorption capacity, CoCr2O4 nanoparticles have the potential to be used as an organic dye removal adsorbent for wastewater treatment.
UR - http://www.scopus.com/inward/record.url?scp=85125912256&partnerID=8YFLogxK
U2 - 10.1016/j.jsamd.2022.100438
DO - 10.1016/j.jsamd.2022.100438
M3 - Article
AN - SCOPUS:85125912256
VL - 7
JO - Journal of Science: Advanced Materials and Devices
JF - Journal of Science: Advanced Materials and Devices
SN - 2468-2284
IS - 2
M1 - 100438
ER -