Mechanical activation of natural chalcopyrite for improving heterogeneous Fenton degradation of tetracycline
Chong-qing Wang , Jia-peng Yang , Rong Huang , Yi-jun Cao
Journal of Central South University ›› 2023, Vol. 29 ›› Issue (12) : 3884 -3895.
Natural minerals receive growing attention as inexpensive, green, and efficient catalysts for degradation of organic pollutants. Mechanical activation of natural chalcopyrite was conducted for improving the catalytic performance. Tetracycline degradation was evaluated in the presence of hydrogen peroxide and mechanically activated chalcopyrite. Tetracycline degradation at 100 min is 55.52% (Chp10), 68.97% (Chp30), 77.79% (Chp60), and 86.43% (Chp120), respectively, and the rate constant of pseudo-first-order kinetics is 0.0079, 0.0109, 0.0137 and 0.0192 min−1, respectively. Chalcopyrite samples were examined by multiple characterizations. Mechanical activation of natural chalcopyrite induces the decline of particle size and slight increase of surface area, smaller grain size, lattice strain, and partial sulfur oxidation. The relationship between catalytic activity and property change manifests that the improved catalytic ability is mainly ascribed to the increase of surface area and surface oxidation induced by mechanical activation. This work provides novel insights into the improvement of catalytic performance of natural minerals by mechanical activation.
advanced oxidation process / chalcopyrite / mechanical activation / natural minerals / tetracycline
| [1] |
|
| [2] |
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
GHIME D, MAHAJAN J, GHOSH P. Decoloration of Orange G by mineral hematite catalyzed Fenton-like process [J]. Environmental Engineering Science, 2016: ees.2015.0534. DOI: https://doi.org/10.1089/ees.2015.0534. |
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
|
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
|
| [24] |
|
| [25] |
|
| [26] |
|
| [27] |
|
| [28] |
|
| [29] |
|
| [30] |
|
| [31] |
|
| [32] |
|
| [33] |
|
| [34] |
|
| [35] |
|
| [36] |
|
| [37] |
|
| [38] |
|
| [39] |
|
/
| 〈 |
|
〉 |